GB2422912A - Pre-programmed controller for building management system with variable microprocessor-controlled components - Google Patents

Pre-programmed controller for building management system with variable microprocessor-controlled components Download PDF

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Publication number
GB2422912A
GB2422912A GB0502300A GB0502300A GB2422912A GB 2422912 A GB2422912 A GB 2422912A GB 0502300 A GB0502300 A GB 0502300A GB 0502300 A GB0502300 A GB 0502300A GB 2422912 A GB2422912 A GB 2422912A
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United Kingdom
Prior art keywords
button
press
time
zone
controller
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GB0502300A
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GB0502300D0 (en
Inventor
Steven Henry
Barrie Morris
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CHALMOR Ltd
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CHALMOR Ltd
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Priority to GB0502300A priority Critical patent/GB2422912A/en
Publication of GB0502300D0 publication Critical patent/GB0502300D0/en
Publication of GB2422912A publication Critical patent/GB2422912A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2642—Domotique, domestic, home control, automation, smart house

Abstract

An electronic controller for controlling the environment within a building, the controller comprising: one or more inputs; one or more outputs; a processor configured to received signals from the one or more inputs and to control said one or more outputs; and a memory pre-programmed with a plurality of pre-prepared control programs from which a user may select one or more control programs. The controller may further comprise: one or more sets of microprocessor-controlled variable components, each set of microprocessor-controlled variable components being associated with one of the outputs; wherein each set of microprocessor-controlled variable components is adjustable by the processor, in accordance with one or more control programs selected by a user, to adjust the electrical characteristics of the associated output.

Description

VERSATILE CONFIGURABLE CONTROLLER
This invention relates to an electronic control unit for controlling the environment within a building The controller is particularly applicable, but by no means limited, to controlling air conditioning, heating, lighting and/or ventilation.
Background to the Invention
Microprocessor-controlled building management systems, sometimes known as energy management systems, are often used in large residential or commercial buildings (e.g. offices, factories or hotels) to control air conditioning, heating, lighting or ventilation functions.
Building management systems generally include a plurality of input terminals for connection to transducers or sensors (e g. temperature sensors) situated around the building, and a plurality of output terminals for connection to actuation devices such as heaters or refrigeration units, lighting circuits, or ventilation valves, motors or pumps As those skilled in the art will appreciate, heating equipment, lighting circuits and ventilation control equipment have different requirements in terms of the electric current drawn, voltage, and power consumption. Accordingly, with conventional building management systems, each output terminal must be preconfigured with components (e.g resistors, capacitors, relays etc.) having appropriate values in order to give the required power, current and voltage characteristics to the output terminal, to suit the characteristics of the actuation devices to which the output terminal is to be connected The input terminals may also need to be adapted in a similar manner to suit certain input devices For the output terminals, and optionally the input terminals, the specific components required are typically installed either during manufacture of the building management system in the factory, or in some cases may be custom-installed by a specialist consultant electrical engineer on-site during installation of the building management system Having the components installed in the factory restricts the subsequent uses of the controller, rendering it inflexible, whereas employing an electrical engineer to install specific components in this manner is time consuming and expensive The inputs and outputs of a conventional building management system are connected to a control microprocessor. Such a microprocessor is programmed to receive input data from the input devices; to run programs scheduling the times when the functions (e.g. heating or lighting) of the building management system are required to operate, and to allow the user to specify desired parameters such as the desired temperature in the building; and to control the output devices in accordance with the input data received and the user's programmed specifications. The microprocessor is conventionally programmed by a specialist consultant software engineer who determines the control strategy required and programs the processor accordingly. Although the software engineer may be provided with a number of software modules or subroutines from which he can create an overall control program, the process of creating this control program is complicated and time consuming, and therefore expensive
Summary of the Invention
According to the present invention there is provided an electronic controller for controlling the environment within a building, the controller comprising one or more inputs, one or more outputs; a processor configured to received signals from said one or more inputs and to control said one or more outputs, and a memory pre-programmed with a plurality of pre- prepared control programs from which a user may select one or more control programs By being pre-programmed (e g in the factory) with a number of pre-prepared control programs, the installation and set-up of the electronic controller is greatly facilitated, as a user may select one or more of the pre-prepared control programs instead of having to employ a specialist software engineer to configure the controller on-site - thereby saving time and cost. The pre-prepared control programs are essentially ready for use, so no (or very little) further configuration is required Additionally, being able to select from the pre-prepared control programs enables the controller to be easily reconfigured should its intended purpose change Preferably the electronic controller further comprises one or more sets of microprocessor- controlled variable components, each set of microprocessor-controlled variable components being associated with one of said one or more outputs; wherein each set of microprocessorcontrolled variable components is adjustable by the processor, in accordance with one or more control programs selected by a user, to adjust the electrical characteristics (e g power, voltage or current drawn) of the associated output. This further facilitates the installation and set-up of the electronic controller, as there is no need to employ a specialist electrical engineer to configure the circuitry Instead, the processor can automatically adjust the variable components to configure the associated output appropriate for its intended purpose The variable components also enable the controller to be easily reconfigured should the desired characteristics of its outputs change.
Preferably the microprocessor-controlled variable components are selected from a group comprising: variable resistors or potentiometers, variable capacitors, variable inductors, variable transformers. The present disclosure is intended to encompass the use of other microprocessorcontrolled variable components that will be known to those skilled in the art, and others that have yet to be invented.
One or more local microprocessors may be provided to control each set of microprocessor- controlled variable components.
Preferably the electronic controller further comprises a non-volatile memory for storing user settings and/or user preferences The electronic controller may be configured to control one or more functions selected from a group comprising: heating, hot water, lighting, air conditioning, ventilation
Brief Description of the Drawings
Embodiments of the invention will now be described, by way of example, and with reference to the drawings in which: Figure 1 illustrates a schematic circuit diagram of an embodiment of a versatile configurable controller (otherwise referred to herein as a universal controller) in accordance with the present invention, Figure 2 illustrates examples of LCD displays of the universal controller when configuring heating functions, Figure 3 illustrates an example of a warm air control algorithm which the universal controller may implement; Figure 4 illustrates an example of a radiant heater control algorithm which the universal controller may implement; Figure 5 illustrates another example of a heater control algorithm which the universal controller may implement; Figure 6 illustrates an example of a weather compensation algorithm which the universal controller may implement; Figure 7 illustrates examples of LCD displays of the universal controller when configuring lighting functions; Figure 8 illustrates key function mapping for controlling lighting functions, and Figure 9 illustrates an example of a lighting control algorithm which the universal controller may implement.
Detailed Description of Preferred Embodiments
The present embodiments represent the best ways known to the applicant of putting the invention into practice. However they are not the only ways in which this can be achieved.
A. UNIVERSAL CONTROLLER - HOUSING SPECIFICATION
The housing of the presently preferred embodiment of the universal controller is a two part plastic moulding, material ABS, size approx 220mm wide x 125mm high x 55mm deep. The finish is spark eroded Six cable gland positions (four PG7 size and two PGI6 size) are provided in one side these consist of reduced wall thickness circles of the appropriate size which can be cut out with a knife.
The two case parts are held together by four No 6 Plastite screws. There are blind plugs to cover the case screws and they are moulded with the case The plugs incorporate a small hole to facilitate removal at a later date.
An earthing stud of M4 x 25m long is fitted in the back part of the housing near the cable entry point and is supplied with two washers, a locking washer and a clamping nut.
The electronics control circuit is split into two PCBs External connections, relays, power supply and fuse are on a PCB mounted in the bottom part of the case Microprocessor, LCD, buttons and signal electronics are on a PCB mounted in the front part of the case. The two PCBs are linked by a single ribbon cable.
When the control is being installed the two parts of the housing are unscrewed and the ribbon cable unplugged. The back part of the housing can then be mounted on the wall or similar following which the external connections can be wired up. When this is completed the ribbon cable is plugged back in and the front part of the housing refitted and screwed down. The ribbon cable is so arranged that the cover can be rotated through 180 to fit to the base when mounted with the cable entries on the top edge.
To improve the accuracy of the built in room temperature sensor a series of ventilation slots in the top and bottom edges of the case front are included.
B. UNIVERSAL CONTROL CIRCUITRY INCLUDING MICROPROCESSOR-
CONTROLLED VARIABLE COMPONENTS
1. Operating environment Control operating temperature range: 0 C to 40 C Control operating humidity range: 0 to 90% RH Control IP rating 1P30 Control safety construction class II Mains supply: 230 Vac nominal, 200 Vac to 265 Vac actual, 50 Hz.
2. Circuit architecture and control software specification Figure 1 illustrates a schematic diagram of a possible circuit board architecture of the universal controller The controller 10 comprises a first circuit board 14 on which a microprocessor 26 and memory chips 28, 30 are mounted. This circuit board 14 is in communication with a second circuit board 12 on which a user interface (e g. keypad) 22 and an LCD display 12 are provided. The first circuit board 14 is further in communication with inputs 32, 34, 36 and output circuits 16, 18, 20. The output circuits 16, 18, 20 are themselves each in communication with an output 44, 46, 48 The inputs 32, 34 and 36 may be, for example, connections from temperature sensors situated around the building. The outputs 44, 46, 48 may be, for example, a heating circuit 44, a lighting circuit 46 and a ventilation system 48 In the interest of clarity, only three inputs 32, 34, 36 and three outputs 44, 46, 48 are shown in Figure 1, although in practice more inputs and outputs may be employed.
The first and second circuit boards 14, 12 mentioned above may be manufactured as a common unitary circuit board. Similarly, the output circuits 16, 18, 20 may also be formed on the same common circuit board.
The circuit architecture also includes standard components (not illustrated), such as a clock, a power supply, one or more fuses, and optionally one or more transformers Ribbon connectors and buses for system expansion may also be provided.
The output circuits 16, 18, 20 provide the connection between the control circuitry and the output terminals 44, 46, 48. Depending on the nature of each output (e g whether it is to be used for controlling heating, lighting or ventilation), the values and types of the components required to form the output circuits 16, 18, 20 will differ, according to the power, current or voltage requirements of the output terminals. Accordingly, each output circuit 16, 18, 20 is provided with a set of microprocessor-controlled variable components 39, 41, 43, which are controlled by instructions from the microprocessor 26 As shown in Figure 1, each set of microprocessor-controlled variable components 39, 41, 43 may be provided with a corresponding local microprocessor 38, 40, 42, each of which is responsible for controlling a corresponding set of variable components 39, 41, 43, under the overall control of the microprocessor 26.
The sets of microprocessor-controlled variable components 39, 41, 43 may include, for example, variable resistors/potentiometers, variable capacitors, variable inductors, variable transformers, relays, switches and transistors On instruction from the microprocessor 26, depending on the desired purpose of the corresponding output 44, 46, 48, each set of variable components 39, 41, 43 is thereby adjusted under microprocessor control to provide the required characteristics for the corresponding output.
Microprocessor-controlled variable components may also be provided on the inputs 32, 34, 36 to enable the characteristics of these inputs to be adjusted to suit the corresponding input devices. As those skilled in the art will appreciate, the inputs 32, 34, 36 may be digital or analogue As mentioned above, the circuit board 14 also includes a memory 28 for storing the program software, and a non-volatile memory 30 for storing user settings and preferences Although the program software may be fully configurable by an expert software engineer, in the preferred embodiment the program memory 28 is not freely programmable, but instead contains a limited number of pre-prepared programs for common building management applications For example, ten alternative programs may be provided for heating functions, and similar numbers of alternative programs may be provided for lighting, ventilation or air conditioning functions. The memory 28 is sufficiently large to store all these alternative programs. This provides an important point of distinction over the prior art systems which need to be programmed by a consultant software engineer to suit the desired purpose. With the present embodiment, a specialist software engineer is not required to configure the controller, since the user simply is required to choose from one or more of the pre-prepared onboard programs. These pie-prepared programs are essentially ready for use, requiring only minor customisation by the user (e.g. to supply required on/off times). By avoiding the need to employ a consultant software engineer to configure the system on-site, the cost and time for installing the building management system is reduced In use, the user selects the desired pre-prepared programs using the keypad 22 whilst viewing prompts and messages displayed on the display 24 The user may also supply building-specific preferences such as the times when the heating and lighting are to be turned on and off, etc. Once the desired pre-prepared programs have been selected, the microprocessor 26 stores the user's program selection together with any preference data in the non- volatile memory 30. Having received the user's input as to the required control operations (e.g. heating, lighting, ventilation, etc.), the microprocessor 26 adjusts the values of the variable components 39, 41, 43 to suit the requirements of the corresponding outputs 44, 46, 48. The use of microprocessor-controlled variable components in this manner provides another important point of distinction over the prior art systems which need to be manually configured by a consultant electrical engineer to suit the desired purpose. Instead, with the present embodiment, the controller effectively configures its own hardware by itself, to suit its desired purpose The present embodiment is also readily adaptable, and accordingly may be easily reconfigured should the required use of the controller change in the future.
The universal controller may be configured to control a plurality of types of functions (e.g. heating, lighting, ventilation or air conditioning) simultaneously, or may be set to control just a single desired function. The specifications that follow below are examples of the use of the universal controller for single functions, but it should be borne in mind that the universal controller may also control these various exemplary functions in combination.
C. HEATING CONTROL SPECIFICATION
1. Outline This section describes the use of the universal controller as a heating controller.
2. Performance specifications
Mains supply to electronic circuit is protected by time delay fuse.
Flame failure input. 230 Vac nominal, 200 Vac to 265 Vac actual, 50 Hz Presence of voltage indicates flame failure.
Burner reset relay output is either Live or Neutral which is selected by a plug in jumper.
Remote volt free switch inputs will be 24Vdc/5mA Built in room temperature sensor has measuring range of 0 C to 30 C with resolution of 0 2 C. Sensor accuracy is +1- 0 6 C over range Untrimmed sensor circuit accuracy is +1-1 4 C over range. Sensor offset can be trimmed under engineering menu to give combined accuracy of +/-0 5 C over range.
Remote room temperature sensor has measuring range of 0 C to 30 C with resolution of 0.2 C. Sensor accuracy is +1- 0.6 C over range Untrimmed sensor circuit accuracy is +1- 1.4 C over range. Sensor offset can be trimmed under engineering menu to give combined accuracy of +/-0.5 C over range.
Remote duct temperature sensor has measuring range of 10 C to 60 C with resolution of 0.2 C Sensor accuracy is +/-3.0 C over range.
Remote temperature sensors can be sited up to lOOm from control, wiring to be mains level rated. Cable may be screened to improve noise rejection Cable resistance must be less than 10 Ohms to minimise errors.
Initial real time clock accuracy is better than 1 minute per month typical, 2 minutes per month maximum.
Real time clock and programme information are battery backed by a lithium coin cell. The battery is in a suitable holder so that it may be changed by service personnel. When mains power is interrupted the clock will carry on running under battery power for seven days after which time the clock will stop running to conserve battery power. The battery will continue to back up the programme information thereafter. The battery will give up to 5000 hours of clock back up and up to 5 years of program information back up. The battery has a service life of over 5 years Battery condition is monitored and, if required, the need for a replacement will be indicated on the display (this will not show when the mains supply is interrupted).
Figure 2 shows examples of typical LCD displays when the controller is being used for controlling heating functions. The programming options accessible via the LCD display will be discussed in greater detail below. Typical control algorithms are shown in Figures 3, 4 and 5.
3. Typical heating specifications
3.1 Typical external connections for heating * Mains Live supply input.
* Mains Neutral supply input.
* Flame failure signal input * Burner reset relay output (Live or Neutral).
* Time enabled relay out (Live).
* Heat stage 1 relay output (Live) * Heat stage 2 relay output (Live).
* Vent stage I relay input.
* Vent stage 1 relay output.
* Vent stage 2 relay output (Live).
* Vent stage 3 relay output (Live).
* Remote room temperature sensor signal input.
* Remote room temperature sensor signal return.
* Duct temperature sensor signal input.
* Duct temperature sensor signal return * Remote volt free switch signal #1 input * Remote volt free switch signal #2 input.
* Remote volt free switch signal common input.
* Communications signal #1 input/output.
* Communications signal #2 input/output * Communications signal ground * 0 to 1OV channel #1 signal output.
* 0 to 1OV channel #2 signal output.
* 0 to 1OV channel signal common output.
Screw terminals may be 7.5mm or 5mm spacing rising clamp style with 2. 5mm2 wire entry size for power connections and with 1.5mm2 wire entry size for signal connections
3 2 Typical electrical specifications for heating
* Power supply is SELV isolated therefore low voltage wiring to the control does not need to be mains level rated * Six relays are rated lOAI24OVac resistive, 2A/24OVac inductive.
* Vent 1 relay is rated 16A/24OVac resistive, 3AI24OVac inductive, 550W single phase motor.
* Control power consumption is 5W.
* Master-slave communications is by screened twisted pair cable, e g Belden 9841.
Controllers are to be daisy-chained together. Maximum overall cable length is 500m.
* 0 to by signals will have an output impedance of 500 Ohm and a maximum current drive capacity of 5mA. Output signals will not be isolated from the control circuit or each other. The common signal return may be Earthed.
3.3 Typical control specifications for heating
The controller may operate with one of the following control regimes as selected by the user * Warm air control, 2 stage heat and 3 stage vent (with modulating outputs) - algorithm as shown in Figure 3 * Radiant / NorRayVac (RTM) / Herringbone; 2 stage heat with fan (with modulating outputs) - algorithm as shown in Figure 4 * Niche/NordAir; 2 stage heat and 3 stage vent (with modulating outputs) - algorithm as shown in Figure 5 3.4 Typical time relay algorithm A time relay may operate under the following situations 1 During any On period.
2 During any overtime period.
3 Whenever Heat 1 relay is on.
4. Whenever Vent 3 relay is on.
5. When Vent 3 is a damper (warm air) and Vent I relay is on.
D. HEATING PROGRAMMING SPECIFICATION
1. Operation 1.1 Buttons A number of buttons are provided for the user to operate, inter a/ia having the following functions +, to increase a value.
-, to decrease a value OK, to accept a value when programmed.
UNDO, to cancel an entry not already OK'd.
SETTINGS, to initialise and step through programming or set permanent frost mode VENT ONLY, to initiate a period of forced vent operation OVERTIME, to quickly extend or initiate a period of heating on.
HOLIDAY, to set the control in holiday mode.
CHECK TEMP, to toggle the display between time and temperatures.
LOCKOUT, to clear a flame failure lockout.
1.2 Display.
Figure 2 shows examples of LCD displays when the controller is being used for controlling heating functions During normal operation the main display will show the time and the day If frost only has been set as the operating mode then the display will show the FROST + ONLY icons.
During an off period the display will show the OFF icon.
During an on period the display will show the ON icon and either AUTO or HEAT + ONLY or VENT + ONLY icons depending on the operating mode set.
In a single zone system pressing the CHECK TEMP button wifl toggle the display to show the room temperature on the first press and the set temperature on the second. The display returns to normal with a third press or after 10 seconds if left displaying the room or set temperature.
In a multi-zone system the master unit will display the room and set temperatures of the slave zones as well. Pressing the CHECK TEMP button once will display zone 1 room temperature, pressing a second time will show zone I set temperature, pressing a third time will show zone 2 room temperature, pressing a fourth time will show zone 2 set temperature and so on until all zones have been displayed 1.3 Modes of operation Four modes of heating operation may be selected under the settings menu - these are as follows: * Auto: the heating and ventilation operate automatically depending on the room temperature, time/set temperature program and the control algorithm selected.
Ventilation is disabled during off periods of the time program * Frost only: ventilation is disabled and heating operates automatically depending on the room temperature and the control algorithm with the set temperature fixed at 5 deg C * Heat only: ventilation is disabled and heating operates automatically depending on the room temperature, time/set temperature program and the control algorithm selected.
* Vent only: heating is disabled and ventilation operates automatically depending on the room temperature, time/set temperature program and the control algorithm selected. Ventilation is disabled during off periods of the time program 1.4 Holiday The HOLIDAY button is used to select holiday mode where the controller will operate with frost protection only for a number of days before automatically returning to normal operation To initiate a holiday period the HOLIDAY button is pressed then the [HOLIDAY] icon will show and the number of days of holiday will show in the minutes area, the [DAYS] and [OK?] icons will also show. The + and - buttons are used to adjust the holiday time to the required number of days then the OK button is pressed to accept the number of days and start the holiday countdown. The number of days of holiday can be set between 1 and 31 and if 0 is set then the holiday will effectively be cancelled Holiday mode will start at 00:00 midnight on the day that it is initiated. The display will show the [HOLIDAY] icon along with the normal display until holiday operation commences. When the holiday commences the [HOLIDAY] icon and the number of days left to run will be displayed. The holiday days will decrease at 00:00 midnight and when the days decrease to 0 normal operation recommences and the [HOLIDAY] icon clears.
The holiday mode can be curtailed at any time by pressing the UNDO button when the [HOLIDAY] icon will clear.
In a multi-zone system a holiday set on the master controller will be applied to all zones automatically. A holiday set on a slave controller will apply to that zone only.
1.5 Overtime.
The OVERTIME button is used to extend or initiate day time operation of the controller.
To initiate an overtime period the OVERTIME button is pressed then the [OVERTIME] icon will show and the overtime period will show in the hours and minutes area, the [OK?] icon will also show The + and - buttons are used to adjust the period in 10 minute steps to the required amount then the OK button is pressed to accept the time.
The overtime period can be adjusted up to the maximum time set in the engineers menu.
During overtime mode the display will show the [OVERTIME] icon and the time left to run decreasing minute by minute When the time decreases to 0000 normal operation recommences and the [OVERTIME] icon clears.
The overtime mode can be curtailed at any time by pressing the UNDO button.
If overtime is initiated whilst vent mode is operating then the vent mode will be stopped and overtime started.
In a multi-zone system an overtime set on the master controller will be applied to all zones automatically. An override set on a slave controller will apply to that zone only.
1.6 Vent Only.
The VENT ONLY button is used to force the controller to operate Vent I relay regardless of the room temperature whilst Heat 1 and Heat 2 relays are disabled and Vent 2 and Vent 3 relays operate according to the room temperature.
To initiate a vent only period the VENT ONLY button is pressed then the [VENT ONLY] icon will show and the vent only period will show in the hours and minutes area, the [OK?] icon will also show. The + and - buttons are used to adjust the period in 10 minute steps to the required amount then the OK button is pressed to accept the time The vent only period can be adjusted up to the maximum time set in the engineers menu During vent only mode the display will show the [VENT ONLY] icon and the time left to run decreasing minute by minute When the time decreases to 00:00 normal operation recommences and the [VENT ONLY] icon clears.
The vent mode can be curtailed at any time by pressing the UNDO button If the vent mode is initiated whilst overtime is operating then the overtime will be stopped and vent mode started.
In a multi-zone system if vent mode is set on the master controller it will be applied to all zones automatically Setting the vent mode on a slave controller will apply to that zone only.
1.7 Optimum start Before a heating period is due to commence the controller is configured to monitor the room temperature and will start the heating in advance of the heating period by a time that is related tothe temperature rise required. The optimum start time will be calculated on a self- adaptive basis, whereby the controller effectively learns the building/heating parameters and adjusts itself accordingly. The optimum start time is determined by analysis of previous events (weighted by a factor of 75%) and the currently-measured conditions (weighted by a factor of 25%) In this manner, using such weightings, events repeated over time will have a greater influence than one-off events on the determination of the optimum start time.
The display will show both the OFF and ON icons to show that the heating has started under optimum start control Ventilation remains disabled during the optimum start period 1 8 Lockout.
When a flame failure signal is detected at the input the Heat stage 1 and Heat stage 2 relays are de-energised and the display will clear then show only the [LOCKOUT] icon.
The lockout state will continue even if the flame failure signal clears.
To clear the lockout state the LOCKOUT reset button is pressed at which time the display returns to normal and the lockout reset relay is energised for 2 seconds after which the Heat stage 1 and Heat stage 2 relays return to normal operation In a multi-zone system a lockout on a slave controller will be automatically displayed on the master controller with the zone number and the [LOCKOUT] icon. The lockout state can be cleared either from the slave controller with the lockout fault or from the master controller by pressing the LOCKOUT reset button If the lockout is reset from the slave then the lockout display will clear on both the slave and master controllers.
Ventilation will continue to function normally during on periods despite the lockout condition 1.9 External inputs.
There are two external inputs for direct control of the operating mode of the system The ON input forces the controller to operate in the on mode for as long as the input is active (switch closed). This could be used for an override on switch or for BMS control. The ON input does not implement an optimum start function. When the mode of operation of the controller has been set to Heat Only, Vent Only or Frost Only then this is the mode that will apply when the ON input is active.
The FROST input forces the controller to operate in the frost mode for as long as the input is active (switch closed). This could be used as a holiday switch or an off switch or as a door interlock to turn the heating off when a door is open or for BMS control.
If ON and FROST inputs are both active then the FROST input will take priority.
When an external input is active the display will show EtnI' in the time area and the FROST or ON icons dependant on which input is active.
In a multi-zone system the external inputs to the master controller will be applied to all zones automatically The external inputs to a slave controller will apply to that zone only Note: If the controller is to be used in a BMS system then all of the ON times should be set as unused (see section 2.4 below), then the controller will by default control at off/night temperature. The BMS system can then activate on/day or frost temperature control using the external inputs.
1.10 Priority order of controlling items.
Where more than one input or setting is trying to operate the control it will respond to inputs in the following priority order: 1 Overtime (operating with NORMAL/HEAT ONLYNENT ONLY) 2. Vent mode 3. Remote Frost input 4 Remote On input (operating with NORMAL/HEAT ONLYNENT ONLY) 5. Holiday 6. Frost Only 7 Time program (operating with AUTO/HEAT ONLYNENT ONLY) 2. Programming the controller The SETTINGS button is used to select operating mode and to initiate programming of the clock, program and temperatures.
The settings function may be password protected, the password is a four digit number which is enabled and programmed under the engineers menu.
When the controller is waiting for a key input the item being selected or modified will be flashing and the [OK?] icon will be displayed If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value If the UNDO button is pressed twice consecutively at any time during programming then the controller will return to normal operation and only items which have been accepted by pressing the OK button will be changed.
If the person programming the controller does not press any button for 60 seconds then the controller will return to normal operation and only items which have been changed by pressing the OK button will be different In a multi-zone system the master controller can also be used to program the set mode, set times and set temperatures of the slave zones When programming the master controller with either the set program or set temperatures the first stage will be to select the zone number to be programmed, see section 29 When the SETTINGS button is pressed the controller will present the options in the following sequence set Clock, set Auto mode, set Frost only mode, set Heat only mode, set Vent only mode, set Program, set Temps 2 1 Enter password When the settings function is first invoked the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing.
Press + or - button until the first digit of the PIN code is correct Press the OK button to enter this number.
The second 0 is now flashing.
Press + or - button until the second digit of the PIN code is correct.
Press the OK button to enter this number The third 0 is now flashing.
Press + or - button until the third digit of the PIN code is correct.
Press the OK button to enter this number.
The fourth 0 is now flashing Press + or - button until the fourth digit of the PIN code is correct.
Press the OK button to enter this number.
If the PIN code has been entered correctly then access to the settings below will be allowed Access will remain available for 60 seconds after the last button press after which time the PIN code will have to be entered again.
2.2 Set clock.
Press SETTINGS button until [SET], [CLOCK] and [OK?] icons are displayed.
[CLOCK] icon will flash.
Press the OK button to accept the set clock function One of the day icons will be flashing.
Press + or - buttons until the correct day is displayed Press the OK button to accept this day.
Hours display will start flashing Press + or - button until the correct hours are displayed.
Press the OK button to accept the hours Minutes display will start flashing.
Press + or - button until the correct minutes are displayed Press the OK button to accept the minutes and reset the seconds to 0.
The controller returns to normal operation.
Note: When the time is set on the master unit of a zoned system it will automatically update the times on all slave units in the system.
2.3 Set Auto mode of operation Press SETTINGS button until [SET], [AUTO] and [OK?] icons are displayed The [AUTO] icon will be flashing Press the OK button to accept the Auto mode of operation.
The controller returns to normal operation 2.4 Set Frost only mode of operation.
Press SETTINGS button until [SET], [FROST], [ONLY] and [OK?] icons are displayed The [FROST] and [ONLY] icons will be flashing Press the OK button to accept the Frost only mode of operation The controller returns to normal operation.
2.5 Set Heat only mode of operation.
Press SETTINGS button until [SET], [HEAT], [ONLY] and [OK?] icons are displayed.
The [HEAT] and [ONLY] icons will be flashing.
Press the OK button to accept the Heat only mode of operation.
The controller returns to normal operation 2.6 Set Vent only mode of operation.
Press SETTINGS button until [SET], [VENT], [ONLY] and [OK?] icons are displayed The [VENT] and [ONLY] icons will be flashing.
Press the OK button to accept the Vent only mode of operation.
The controller returns to normal operation.
2.7 Set program During modification of the set program the display will show a day of week icon, and a "time slot" icon If the day of week to program is being chosen then the time display area will be clear but if the program time is being set then the set time will be displayed. The item which is being modified will be flashing.
Press SETTINGS button until [SET], [PROGRAM] and [OK?] icons are displayed.
The [PROGRAM] icon will be flashing Press the OK button to accept the set program function.
Day of week icon will be flashing Press + or - button until the day to change is displayed.
Press the OK button to choose this day [ON 1] icon will be on, hours and minutes display is flashing.
Press + or - button until the required hours and minutes is displayed, the time will change in minute steps Press the OK button to accept the hours and minutes.
The display will automatically advance to the next ON/OFF time to modify as follows: An ON time will advance to its corresponding OFF time.
If an ON time has been set to "----", because it is not used, then the advance will be to ON 1 of the next day.
An OFF time will advance to the next ON time of that day, even if the next ON time has been set to "--:--. If the OFF time is OFF 3 then advance will be to the first time of the next day If the advance has been to a new day then the new days icon will be flashing and the day may be changed using + or - button or accepted using the OK button An unused ON/OFF slot is identified by having the ON time set to If no on periods are required for any day, for example Saturday or Sunday then just set all of the ON times as unused for that day.
To set an ON time to press the + button until the time changes from "23:50" to To change an ON time of "-- --" to a useable ON/OFF slot press the + or - button and the display will change from "--:--" to 10 minutes after the previous OFF time.
To ease the entry of a program two things will happen Firstly a default program will be loaded into the memory when a controller is first used Secondly when ON/OFF times are set for Monday these times will be automatically copied to Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday whilst ON/OFF times set for Saturday will automatically be copied to Sunday.
2 8 Set control temperatures.
Press SETTINGS button until [SET], [TEMP] and [OK?] icons are displayed.
The [TEMP] icon will be flashing Press the OK button to accept the set temperatures function.
[DAY] icon will be displayed and temperature will be flashing Press + or button until the correct temperature is displayed.
Press the OK button to accept this temperature.
[NIGHT] icon will be displayed and temperature will be flashing.
Press + or - button until the correct temperature is displayed.
Press the OK button to accept this temperature.
The controller returns to normal operation.
Note. Frost control temperature may be permanently fixed, e.g. at 5 C.
2.9 Select zone to program - master only During modification of the set program or set temperatures on a master controller the display will always show [ZONE] and the zone number. This is selected immediately after set program or set temperature is accepted and the [ZONE] icon will be displayed with the zone number flashing.
Zone number will be flashing Press + or - button until the zone to program is displayed Press the OK button to accept this zone.
When the OK button is pressed the setting of the mode or program or temperatures will continue as per sections 2 3 and 2.8 3. Engineer functions Various advanced parameters may be programmed under the engineer function Press the + button and whilst still holding it press the SETTINGS button to access the engineer function.
The [SET] and [ENGINEER] icons will be displayed The engineer function is password protected, the password is a fixed four digit number which will be 1234.
When the controller is waiting for a key input the [OK?] icon will be displayed If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value.
If the UNDO button is pressed twice consecutively at any time during engineer function then the controller will return to normal operation and only items which have been accepted by pressing OK will be changed.
If the person programming the controller does not press any button for 60 seconds then the controller will return to normal operation and only items which have been accepted by pressing OK will be changed.
Engineer settings are not programmable over the communications link, they can only be set locally on an individual controller.
3.1 Enter password.
When the Engineer function is first invoked the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing Press + or - button until the first digit of the PIN code is correct Press the OK button to enter this number.
The second 0 is now flashing.
Press + or - button until the second digit of the PIN code is correct.
Press the OK button to enter this number The third 0 is now flashing Press + or - button until the third digit of the PIN code is correct Press the OK button to enter this number The fourth 0 is now flashing.
Press + or - button until the fourth digit of the PIN code is correct.
Press the OK button to enter this number.
If the PIN code has been entered correctly then the [ENGINEER] icon is displayed to signify that the engineer functions can now be accessed using the SET button. The [ENGINEER] icon will show and access to the engineer function will remain available for 60 seconds after the last button press at which time the [ENGINEER] icon will clear and access will cease without entering the PIN code again.
3.2 Programming Engineering functions All Engineering functions will be shown as a code in the first two digits of the display, e.g Cl, ti, t2 and a variable in the second two digits.
Press the SETTINGS button until the correct variable code is shown in the display Press OK to select this variable for change.
The variable value will start flashing.
Press + or - button until the variable value is correct.
Press the OK button to accept this value.
The variable value will stop flashing.
The SETTINGS button can be used to advance to another variable code 3 3 List of engineering variables Al. 0 = warm air control, vent I is a fan.
I = warm air control, vent 1 is a damper.
2 = Radiant I NorRayVac (RTM) I Herringbone control.
3 = Niche / Nordair control.
Default value. 0 St 0 space temperature from internal sensor only I = space temperature from external sensor only 2 = space temperature from average of internal and external sensor Default value: 0 CI: Communications zone number.
Cl = 0 indicates no communications.
Cl = 1 indicates master unit, the zone number is 1.
Cl = 2 to 16 indicates slave unit, Cl is the zone number.
Default value 0 Each zone must have a unique zone number; it is not possible to have two controllers with the same zone number.
C2 Highest communications zone number.
Range: 2 to 16 Default value. 2 Note If this number is set incorrectly then either a higher numbered zone will not communicate or a lower numbered zone may cause a communications error to be displayed on the master unit ti: Overtime maximum allowed time in 10 minutes, eg 9 allows 90 minutes. Setting 0 effectively disables the function.
Range: 00 to 60 Default value 6 t2 Vent mode maximum allowed time in 10 minutes, e.g. 9 allows 90 minutes Setting 0 iS effectively disables the function.
Range: 00 to 60 Default value: 6 t3 Optimum start time in 10 minutes, e.g. 9 gives 90 minutes Range: 00 to 24 Default value 6 Fl. Radiant I NorRayVac (RTM) / Herringbone fan delay time in seconds.
Range: 0 to 255 Default value: 0 F2. Radiant I NorRayVac (RTM) I Herringbone post purge fan time in seconds.
Range: 0 to 255 Default value 0 bi. Control temperature set point bandwidth in degrees C Range: 2 to 10 Default value 4 b2: Control temperature set point dead band in degrees C. Range: I to 4 Default value 2 di: Duct temperature set point low limit in degrees C Range 20 to 60 Default value 30 d2 Duct temperature set point high limit in degrees C. Range 20 to 60 Default value: 50 Li Lockout log displays the number of lockouts since last service reset. Reset is achieved by pressing the OK button whilst the log is displayed.
Range: 0 to 9999 L2: Lockout limit The number of lockouts allowed before the [SERVICE] icon is displayed Range. 1 to 99 Default value 25 Hi Displays the burner hours since last service reset. Reset is achieved by pressing the OK button whilst the log is displayed.
Range: 0 to 9999 F-12: Burner hours limit The number of burner hours allowed before the [SERVICE] icon is displayed in 100 hours, e g 50 gives 5000 hours Range I to 99 Default value. 1200 hours H3 Displays the savings hours since last service reset. Savings hours are the times when the heating is on but the Heat stage I relay is not on. Reset is achieved by pressing the OK button whilst the log is displayed.
Range: 0 to 9999 H4: Displays the off period heating hours since last service reset Off period heating hours are the times when the heating is off but the Heat stage I relay is on Reset is achieved by pressing the OK button whilst the log is displayed.
Range 0 to 9999 P1 0=settings menu not protected by PIN 1=settings menu protected by PIN.
Default value: 0 P2: Settings menu PIN number.
Range. 0000 to 9999 Default value 1234 P3. 0=do not reset all of program and engineering data to default settings I =reset all of program and engineering data to default settings.
Defaultvalue:0 The above command allows the engineer to reset the whole program memory and engineers settings back to the new control default settings. When the reset occurs P3 is changed back to 0 and therefore disabled again.
4. Default program The following default program for heating will be set in the controller at time of manufacture Monday, ON 1 = 08:00, OFF 1 = 16:30, ON 2 and ON 3 = unused Tuesday, ON 1 = 0800, OFF 1 = 16:30, ON 2 and ON 3 = unused Wednesday, ON 1 = 0800, OFF I = 1630, ON 2 and ON 3 = unused.
Thursday, ON 1 = 08:00, OFF I = 16.30, ON 2 and ON 3 = unused.
Friday, ON 1 = 08 00, OFF 1 = 16:30, ON 2 and ON 3 = unused Saturday, ON 1 = 08 00, OFF 1 = 12:00, ON 2 and ON 3 = unused Sunday, ON I = 0800, OFF 1 = 12.00, ON 2 and ON 3 = unused.
On/day temperature, 20 0 deg C Off/night temperature, 10 0 deg C.
E. HEATING AND BOILER (CAT) CONTROL SPECIFICATION
1. Outline CAT refers to the use of the universal controller as a central heating controller with two heating zones plus one zone hot water zone It has a built in boiler compensator. Each heating zone and the hot water may have their own time programs. Boiler compensation is selectable to be either weather compensation, using an outside temperature sensor, or load compensation (measuring boiler flow and return temperatures)
2, Specifications
Mains supply to electronic circuit is protected by time delay fuse Heating zone high limit thermostat inputs will require closed for heating contacts which must be volt free Load will be 24Vdc/5mA.
Process temperature sensor will have measuring range of -10 C to 90 C with resolution of 0.5 C Sensor accuracy is +1- 1 2 C over range. Untrimmed sensor circuit accuracy is +1-4 C over range Sensor offset can be trimmed under engineering menu to give combined accuracy of +1-2 C over range
3. CAT specifications
3.1 Typical external connections for CAT heating * Mains Live supply input.
* Mains Neutral supply input.
* Heating zone 1 relay output (Live).
* Heating zone 2 relay output (Live).
* Hot water relay output (Live) * Pump relay output (Live) * Boiler relay input.
* Boiler relay output.
* Hot water demand input (Live) * Compensation sensor 1 signal input.
* Compensation sensor 1 signal return.
* Compensation sensor 2 signal input.
* Compensation sensor 2 signal return.
* Heating zone I high limit thermostat signal input.
* Heating zone 2 high limit thermostat signal input.
* Heating zone high limit thermostat common input.
3.2 Typical electrical specifications for CAT heating * Power supply is SELV isolated therefore low voltage wiring to the control does not need to be mains level rated.
* All relays are rated 8N24OVac resistive, 2A/24OVac inductive * Control power consumption is 5W.
4. Operation 4.1 Features.
* 2 independent heating zones plus hot water Each zone and hot water has 2 On and 2 Off times per day with each day programmable individually.
* Overtime can be set on a zone by zone basis.
* Global Holiday mode * Boiler compensation either by reference to weather conditions using external temperature sensor or by load compensation using boiler flow and return temperature monitoring * Frost protection of the heating system is achieved by continual monitoring of water temperature.
* Regular circulation pump exercise.
4.2 Buttons.
A number of buttons are provided for the user to operate, inter a/ia having the following functions: +, to increase a value.
-, to decrease a value.
OK, to accept a value when programmed.
UNDO, to cancel an entry not already OK'd SETTINGS, to initialise and step through operating mode and settings.
SUMMER/WINTER, to directly change the time by +1- 1 hour.
OVERTIME, to quickly extend or initiate a period of lighting HOLIDAY, to set the control in holiday mode INFO, to display information such as light levels and output relay state ZONE, to change the zone being displayed.
4.2 Display.
During normal operation the main display will show the time and the day.
Pressing the INFO button will change the display to show the temperature of compensation sensor I (external temperature or boiler flow temperature) Another press of the INFO button will show the temperature of compensation sensor 2 (boiler return temperature). The next press of the INFO button will return to the normal time and day display If the control is left showing a temperature reading then the display will automatically return to showing the time and day after 60s of inactivity. The temperature readings will be displayed as in Appendix 1.
Pressing the ZONE button will change the display to show the status of heating zone 1.
Another press of the ZONE button will advance the display to show the status of heating zone 2 and a third press of the ZONE button will advance the display to show the status of the hot water. Another press of the ZONE button will return to the normal time and day display. If the control is left showing the status of a zone then the display will automatically return to showing the time and day after 240s of inactivity Pressing the INFO button whilst a zone is displayed will change the display to show the output relay status for that zone Another press of the INFO button will return to the zone status display 4.3 Modes of operation Three modes of operation for each zone can be permanently selected on a zone by zone basis under the zone settings menu, these are as follows * Auto the heating or hot water zone operates automatically depending on the time program and the thermostat input status * On: the heating or hot water zone is on, The time program is ignored.
* Off the heating or hot water zone is off The time program is ignored.
4 4 Holiday.
The HOLIDAY button is used to select holiday mode where all zones will be off for a set number of days before automatically reverting to normal operation.
To initiate a holiday period the HOLIDAY button is pressed then the [HOLIDAY] icon will show and the number of days of holiday will show in the minutes area, the [DAYS] and [OK'?] icons will also show The + and buttons are used to adjust the holiday time to the required number of days then the OK button is pressed to accept the number of days and start the holiday countdown The number of days of holiday can be set between 1 and 31 and if 0 is set then the holiday will effectively be cancelled Holiday mode will start at 0000 midnight on the day that it is initiated The display will show the [HOLIDAY] icon along with the normal display until holiday operation commences When the holiday commences the [HOLIDAY] icon and the number of days left to run will be displayed The holiday days will decrease at 00:00 midnight and when the days decrease to 0 normal operation recommences and the [HOLIDAY] icon clears The holiday mode can be stopped at any time by pressing the UNDO button.
4 5 Overtime The OVERTIME button is used to extend or initiate an On period of operation of the controller An overtime period can be applied to all zones simultaneously or on a zone by zone basis. If OVERTIME is pressed when the default time display is showing then the overtime will be applied to all zones simultaneously and [A], for all zones, will be displayed under the [ZONE] icon as the overtime is set. Alternatively if OVERTIME is pressed when an individual zone status is being displayed then the overtime will apply to that zone only and the zone number will be shown To initiate an overtime period the OVERTIME button is pressed and the [OVERTIME] icon will show, the overtime period will show in the hours and minutes area, the [OK?] icon will also show. The + and - buttons are used to adjust the period in 10 minute steps to the required amount then the OK button is pressed to accept the time. The overtime period can be adjusted up to the maximum time set in the engineers menu.
During overtime mode the [OVERTIME] icon will be displayed. An all zone overtime will be displayed in the time display with [A] in the zone, whilst a single zone overtime will be show in the zone status display The time left to run decreasing minute by minute is shown in the time digits and when the time decreases to 0000 normal operation recommences and the [OVERTIME] icon clears.
The overtime mode can be stopped at any time by pressing the UNDO button.
4.6 Weather compensation.
Weather compensation can be selected under the engineers menu When operating in this mode the outside temperature is measured using a sensor and the boilers return temperature is adjusted by the control to match the heating needed. Various parameters are set under the engineers menu to match the return temperature to the type of heating system and the buildings needs An example of a weather compensation algorithm is shown in Figure 6 4.7 Load compensation.
Where it is not practical to fit an outside sensor to provide weather compensation the controller can be configured to provide load compensation. When operating in this mode the controller measures the boilers flow temperature and the boilers return temperature and adjusts the return temperature to match the heating load. Various parameters are set under the engineers menu to match the compensation to the type of heating system and the buildings needs 4 8 Frost Protection.
If the boiler's return sensor experiences a temperature below 5 C at any time then the control will open the heating zone 1 and heating zone 2 valves then energise the pump. If the sensor temperature does not rise to greater then 6 C within 5 minutes then the boiler will be fired until the sensor temperature does reach 6 C.
4 9 Regular circulation pump exercise The control will ensure that the pump is operated for 10 seconds every 24 hours at times when otherwise it would not be used.
5. Programming the controller The SETTINGS button is used to select operating modes and to initiate programming of the clock and time program.
The settings function may be password protected, the password is a four digit number which is enabled and programmed under the engineers menu Whenthe controller is waiting for a key input the item being selected or modified will be flashing and the [OK'?] icon will be displayed.
If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value If the UNDO button is pressed twice consecutively at any time dunng programming then the controller will return to normal operation and only items which have been accepted by pressing the OK button will be changed.
If the person programming the controller does not press any button for 60 seconds then the controller will return to normal operation and only items which have been changed by pressing the OK button will be different.
The SETTINGS button accesses different functions depending on what was displayed at the time it was pressed If the default display of time and day is showing when SETTINGS is pressed then changing the time and day ensues If a zone status is being displayed when SETTINGS is pressed then changing the operating mode and the program times for that zone ensues. See Appendix 2 for more details.
5.1 Enter password.
If PIN protection of settings has been enabled under the engineers menu then, when the settings function is first invoked, the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing.
Press + or - button until the first digit of the PIN code is correct.
Press the OK button to enter this number.
The second 0 is now flashing Press + or - button until the second digit of the PIN code is correct.
Press the OK button to enter this number The third 0 is now flashing Press + or - button until the third digit of the PIN code is correct.
Press the OK button to enter this number The fourth 0 is now flashing Press + or - button until the fourth digit of the PIN code is correct Press the OK button to enter this number If the PIN code has been entered correctly then access to the settings will be allowed and access will remain available for 60 seconds after the last button press after which time the PIN code will have to be entered again 5.2 Set clock.
Press SETTINGS button when the display shows the time and day [SET], [CLOCK] and [OK?] icons are displayed.
One of the day icons will be flashing.
Press or - buttons until the correct day is displayed.
Press the OK button to accept this day.
Hours display will start flashing.
Press + or - button until the correct hours are displayed Press the OK button to accept the hours.
Minutes display will start flashing.
Press + or - button until the correct minutes are displayed Press the OK button to accept the minutes and reset the seconds to 0 The controller returns to normal operation.
5.3 Set Auto mode of operation for a zone.
From the zone status display press SETTINGS button status until [SET], [AUTO] and [OK?] icons are displayed.
The [AUTO] icon will be flashing Press the OK button to accept the Auto mode of operation The controller returns to normal operation.
5.4 Set On mode of operation for a zone.
From the zone status display press SETTINGS button status until [SET], [ON] and [OK'?] icons are displayed.
The [ON] icon will be flashing.
Press the OK button to accept the On mode of operation.
The controller returns to normal operation.
5.5 Set Off mode of operation for a zone.
From the zone status display press SETTINGS button status until [SET], [OFF] and [OK?] icons are displayed.
The [OFF] icon will be flashing.
Press the OK button to accept the Off mode of operation.
The controller returns to normal operation.
6 Set program for a zone.
During modification of the set program the display will show a day of week icon, and a "time slot" icon If the day of week to program is being chosen then the time display area will be clear but if the program time is being set then the set time will be displayed. The item which is being modified, day or time, will be flashing From the zone status display press SETTINGS button until [SET], [PROGRAM] and [0K7] icons are displayed.
The [PROGRAM] icon will be flashing.
Press the OK button to accept the set program function.
Day of week icon will be flashing Press + or - button until the day to change is displayed.
Press the OK button to choose this day [ON 1] icon will be on, hours and minutes display is flashing Press + or - button until the required hours and minutes is displayed, the time will change in lOminutesteps.
Press the OK button to accept the hours and minutes.
The display will automatically advance to the next ON/OFF time to modify as follows An ON time will advance to its corresponding OFF time.
If an ON time has been set to "--:--", because it is not used, then the advance will be to ON 1 of the next day.
An OFF time will advance to the next ON time of that day, even if the next ON time has been set to "--:--. If the OFF time is OFF 2 then advance will be to the first time of the next day.
If the advance has been to a new day then the new days icon will be flashing and the day may be changed using + or - button or accepted using the OK button.
An unused ON/OFF slot is identified by having the ON time set to If no on periods are required for any day, for example Saturday or Sunday then just set all of the ON times as unused for that day To set an ON time to "---" press the + button until the time changes from "23:50" to To change an ON time of "----" to a useable ON/OFF slot press the + or - button and the display will change from "--:--" to 10 minutes after the previous OFF time.
To ease the entry of a program two things will happen. Firstly a default program will be loaded into the memory when a controller is first used. Secondly when ON/OFF times are set for Monday these times will be automatically copied to Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
6. Engineer functions Various advanced parameters may be programmed under the engineer function. Press the + button and whilst still holding it press the SETTINGS button to access the engineer function.
The [SET] and [ENGINEER] icons will be displayed.
The engineer function is password protected, the password is a fixed four digit number which will be 1234.
When the controller is waiting for a key input the [OK?] icon will be displayed.
If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value If the UNDO button is pressed twice consecutively at any time during engineer function then the controller will return to normal operation and only items which have been accepted by pressing OK will be changed If no buttons are pressed then after 60 seconds of inactivity the controller will return to normal operation and only items which have been accepted by pressing OK will be changed.
7.1 Enter password.
When the Engineer function is first invoked the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing Press + or - button until the first digit of the PIN code is correct.
Press the OK button to enter this number.
The second 0 is now flashing.
Press + or - button until the second digft of the PIN code is correct.
Press the OK button to enter this number The third 0 is now flashing.
Press + or - button until the third digit of the PIN code is correct.
Press the OK button to enter this number.
The fourth 0 is now flashing.
Press + or - button until the fourth digit of the PIN code is correct Press the OK button to enter this number If the PIN code has been entered correctly then the [ENGINEER] icon is displayed to signify that the engineer functions can now be accessed using the SET button. The [ENGINEER] icon will show and access to the engineer function will remain available for 60 seconds after the last button press at which time the [ENGINEER] icon will clear and access will cease without entering the PIN code again.
7.2 Programming Engineering functions.
All Engineering functions will be shown as a code in the first two digits of the display, e g.
Cl, ti, t2 and a variable in the second two digits.
Press the SETTINGS button until the correct variable code is shown in the display.
Press OK to select this variable for change The variable value will start flashing.
Press + or - button until the variable value is correct Press the OK button to accept this value The variable value will stop flashing The SETTINGS button can be used to advance to another variable code 7.3 List of engineering variables.
Al. 0 = Heating zone I not enabled 1 = Heating zone I enabled.
A2: 0 = Heating zone 2 not enabled 1 = Heating zone 2 enabled A3. 0 = Hot water not enabled.
1 = Hot water enabled A4: 0 = Weather compensation.
1 = Load compensation.
A5 0 = Pumped system I = Combi boiler system with internal pump.
A6 0 TRVs limit room temperature.
1 = Thermostat limits room temperature.
ti: Optimum start maximum preheat time in 10 minutes, e.g. 9 allows 90 minutes.
Range 00 to 24 Default value. 6 t2: Pump overrun time in 10 minutes, e g 9 allows 90 minutes Range: OOto 12 Default value 3 t3: Overtime maximum allowed time in 10 minutes, e g. 9 allows 90 minutes.
Setting 0 effectively disables the function.
Range: 00 to 60 Default value. 6 Li. Boiler return temperature low limit in C Range 20 to 50 Default value: 30 L2: Outside temperature/return temperature slope CI C - weather compensation Boiler load/temp slope constant - load compensation Range: Ito 16 Default value: 9 L3. Outside temperature offset in C - weather compensation Boiler response to load constant - load compensation Weather compensation: Range -5 to 15, default value: 3 Load compensation. Range. 0 to 40, default value: 16 L4: Mild weather heating cut off outside temperature in C - weather compensation.
Range. 10 to 25 Default value: 18 Bi: Start up boost % on boiler return temperature - weather compensation.
Range: 0 to 50 Default value 50 B2. Start up boost duration in 10 minutes - weather compensation.
Range. 0 to 24 Default value. 3 B3. TaU off % on boiler return temperature - weather compensation Range: 0 to 50 Default value: 20 B4: Tail off delay in 10 minutes - weather compensation.
Range: 0 to 30 Default value: 12 Hi: Displays the Zone 1 heating hours since last service reset. Reset is achieved by pressing the OK button whilst the log is displayed.
Range: 0 to 9999 H2. Displays the Zone 2 heating hours since last service reset Reset is achieved by pressing the OK button whilst the log is displayed Range: 0 to 9999 H3: Displays the Zone 3, hot water, heating hours since last service reset Reset is achieved by pressing the OK button whilst the log is displayed.
Range: 0 to 9999 H4 Displays the heating saved hours since last service reset Saved hours are hours when heating demand is on but the boiler is held off Reset is achieved by pressing the OK button whilst the log is displayed Range. 0 to 9999 P1 0=settings menu not protected by PIN 1=settings menu protected by PIN.
Default value: 0 P2 Settings menu PIN number.
Range: 0000 to 9999 Default value: 1234 P3: 0=do not reset all of program and engineering data to default settings.
1=reset all of program and engineering data to default settings.
Default value. 0 The above command allows the engineer to reset the whole program memory and engineers settings back to the new control default settings. When the reset occurs P3 is changed back to 0 and therefore disabled again
F. LIGHTING CONTROL SPECIFICATION
1. Outline This section describes the use of the universal controller as a multi-channel lighting controller, which may be configured to automatically turn on light control relays dependant on light level, PIR occupancy sensors and a time program.
2. Specifications
Mains supply to electronic circuit is protected by time delay fuse Remote volt free PIR inputs will require normally closed operation and will have a 24Vdc/5mA load Lux sensor inputs will be compatible with TBA lux sensor. A single point offset trim feature is built into engineer menu.
Lux sensors can be sited up to lOOm from control, wiring to be mains level rated Cable may be screened to improve noise rejection. Cable resistance must be less than 10 Ohms to minimise errors.
A volt free normally open relay will be used as a system monitor. When the controller has power present and is functioning correctly the contact will be closed, when the mains power fails the contact will open This can be used by an external device for monitoring purposes or can be used for emergency lighting control.
3. Lighting specifications
3 1 Typical external connections for six zone lighting * Mains Live supply input * Mains Neutral supply input * Zone I relay output (Live).
* Zone 2 relay output (Live) * Zone 3 relay output (Live).
* Zone 4 relay output (Live).
* Zone 5 relay output (Live) * Zone 6 relay output (Live).
* Monitor relay input * Monitor relay output.
* Lux sensor 1 signal input * Lux sensor I signal return.
* Lux sensor 2 signal input.
* Lux sensor 3 signal return.
* PIR volt free switch signal channel #1 input * PIR volt free switch signal channel #2 input.
* PIR volt free switch common input.
3 2 Typical electrical specifications for six zone lighting * Power supply is SELV isolated therefore low voltage wiring to the control does not need to be mains level rated.
* All relays are rated 8A/24OVac resistive, 2AI24OVac inductive.
* Control power consumption is 5W.
4. Operation 4 1 Features * Six (or fewer, or potentially more) independent lighting zones. Each zone has 2 On and 2 Off times per day with each day programmable individually.
* Overtime can be set on a zone by zone basis * Global Holiday mode.
* Zones can be set so that control is by any combination of time, light level or occupancy.
4.2 Buttons.
A number of buttons are provided for the user to operate, inter a/ia having the following functions: +, to increase a value -, to decrease a value OK, to accept a value when programmed.
UNDO, to cancel an entry not already OK'd.
SETTINGS, to initialise and step through operating mode and settings.
SUMMER/WINTER, to directly change the time by +1- 1 hour.
OVERTIME, to quickly extend or initiate a period of lighting.
HOLIDAY, to set the control in holiday mode INFO, to display information such as light levels and output relay state ZONE, to change the zone being displayed.
4.3 Display During normal operation the main display will show the time and the day. Examples of the LCD display when controlling lighting functions are shown in Figure 7.
Pressing the INFO button will change the display to show the lux reading of channel 1.
Another press of the INFO button will show the lux reading of channel 2. The next press of the INFO button will return to the normal time and day display. If the control is left showing a Iux reading then the display will automatically return to showing the time and day after 60s of inactivity. The lux readings will be displayed as in Figure 7.
Pressing the ZONE button will change the display to show the status of zone 1 Another press of the ZONE button will advance the display to show the status of zone 2 etc. After the status of the last zone is shown the next press of the ZONE button will return to the normal time and day display. If the control is left showing the status of a zone then the display will automatically return to showing the time and day after 240s of inactivity. The status of a zone will be shown as in Figure 7.
Pressing the INFO button whilst a zone is displayed will change the display to show the output relay status for that zone Another press of the INFO button will return to the zone status display. The output relay status will be displayed as in Figure 7.
Figure 8 illustrates schematically the sequence of events the LCD display goes through when the buttons are pressed during the control of lighting functions.
4 4 Modes of operation.
Three modes of operation for each lighting zone can be permanently selected on a zone by zone basis under the zone settings menu, these are as follows: * Auto. the lighting zone operates automatically depending on the time program, the light level and the occupancy status. See Figure 9 for details of an automatic lighting control algorithm.
* On the lighting zone is on The time program, the light level and the occupancy status are all ignored * Off. the lighting zone is off. The time program, the light level and the occupancy status are all ignored.
4 5 Holiday The HOLIDAY button is used to select holiday mode where all lighting zones will be off for a set number of days before automatically reverting to normal operation.
To initiate a holiday period the HOLIDAY button is pressed then the [HOLIDAY] icon will show and the number of days of holiday will show in the minutes area, the [DAYS] and [OK?] icons will also show. The + and buttons are used to adjust the holiday time to the required number of days then the OK button is pressed to accept the number of days and start the holiday countdown. The number of days of holiday can be set between 1 and 31 and if 0 is set then the holiday will effectively be cancelled.
Holiday mode will start at 00:00 midnight on the day that it is initiated. The display will show the [HOLIDAY] icon along with the normal display until holiday operation commences When the holiday commences the [HOLIDAY] icon and the number of days left to run will be displayed The holiday days will decrease at 00 00 midnight and when the days decrease to 0 normal operation recommences and the [HOLIDAY] icon clears.
The holiday mode can be stopped at any time by pressing the UNDO button.
4.6 Overtime.
The OVERTIME button is used to extend or initiate an Auto On period of operation of the controller.
An overtime period can be applied to all lighting zones simultaneously or on a zone by zone basis. If OVERTIME is pressed when the default time display is showing then the overtime will be applied to all zones simultaneously and [A], for all zones, will be displayed under the [ZONE] icon as the overtime is set Alternatively if OVERTIME is pressed when an individual zone status is being displayed then the overtime will apply to that zone only and the zone number will be shown To initiate an overtime period the OVERTIME button is pressed and the [OVERTIME] icon will show, the overtime period will show in the hours and minutes area, the [OK?] icon will also show. The + and - buttons are used to adjust the period in 10 minute steps to the required amount then the OK button is pressed to accept the time The overtime period can be adjusted up to the maximum time set in the engineers menu.
During overtime mode the [OVERTIME] icon will be displayed. An all zone overtime will be displayed in the time display with [A] in the zone, whilst a single zone overtime will be show in the zone status display. The time left to run decreasing minute by minute is shown in the time digits and when the time decreases to 00 00 normal operation recommences and the [OVERTIME] icon clears The overtime mode can be stopped at any time by pressing the UNDO button 5. Programming the control/er The SETTINGS button is used to select operating modes and to initiate programming of the clock, time program and lux levels The settings function may be password protected, the password is a four digit number which is enabled and programmed under the engineers menu.
When the controller is waiting for a key input the item being selected or modified will be flashing and the [OK?] icon will be displayed If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value.
If the UNDO button is pressed twice consecutively at any time during programming then the controller will return to normal operation and only items which have been accepted by pressing the OK button will be changed If the person programming the controller does not press any button for 60 seconds then the controller will return to normal operation and only items which have been changed by pressing the OK button will be different The SETTINGS button accesses different functions depending on what was displayed at the time it was pressed If the default display of time and day is showing when SETTINGS is pressed then changing the time and day ensues If a zone status is being displayed when SETTINGS is pressed then changing the operating mode, the lux level set point and the program times for that zone ensues See Appendix 3 for more details.
5.1 Enter password.
If PIN protection of settings has been enabled under the engineers menu then, when the settings function is first invoked, the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing.
Press + or - button until the first digit of the PIN code is correct.
Press the OK button to enter this number.
The second 0 is now flashing.
Press + or - button until the second digit of the PIN code is correct.
Press the OK button to enter this number.
The third 0 is now flashing.
Press + or - button until the third digit of the PIN code is correct.
Press the OK button to enter this number The fourth 0 is now flashing.
Press + or - button until the fourth digit of the PIN code is correct.
Press the OK button to enter this number.
If the PIN code has been entered correctly then access to the settings will be allowed and access will remain available for 60 seconds after the last button press after which time the PIN code will have to be entered again.
5.2 Set clock.
Press SETTINGS button when the display shows the time and day. [SET], [CLOCK] and [OK?] icons are displayed.
One of the day icons will be flashing Press + or - buttons until the correct day is displayed.
Press the OK button to accept this day.
Hours display will start flashing.
Press + or - button until the correct hours are displayed.
Press the OK button to accept the hours.
Minutes display will start flashing Press + or - button until the correct minutes are displayed Press the OK button to accept the minutes and reset the seconds to 0.
The controller returns to normal operation 5.3 Set Auto mode of operation for a zone From the zone status display press SETTINGS button status until [SET], [AUTO] and [OK'?] icons are displayed.
The [AUTO] icon will be flashing Press the OK button to accept the Auto mode of operation.
The controller returns to normal operation.
5.4 Set On mode of operation for a zone.
From the zone status display press SETTINGS button status until [SET], [ON] and [OK?] icons are displayed The [ON] icon will be flashing.
Press the OK button to accept the On mode of operation.
The controller returns to normal operation 5 Set Off mode of operation for a zone.
From the zone status display press SETTINGS button status until [SET], [OFF] and [OK?] icons are displayed.
The [OFF] icon will be flashing Press the OK button to accept the Off mode of operation.
The controller returns to normal operation.
5.6 Set LUX level set point for a zone.
From the zone status display press SETTINGS button status until [SET], [LUX] and [OK?] Icons are displayed The [LUX] icon will be flashing.
Press the OK button to accept the set lux level function The Lux level set point will be flashing.
Press + or - button until the correct 1w level is displayed.
Press the OK button to accept this temperature.
The controller returns to normal operation.
57 Set program for a zone.
Dunng modification of the set program the display will show a day of week Icon, and a "tune slot" icon. If the dayof weekto program is being chosen thenthetime dlsplayareawillbe clearbutifthe programtime is being setthenthesettlmewlll bedisplayed. Theltemwhlch Is being modified, day or time, will be flashing.
From the zone status display press SETflNGS button until [SET], [PROGRAM] and [OK?] icons are displayed.
The [PROGRAM] icon will be flashing.
Press the OK button to accept the set program function.
Dayofweekiconwillbeflashing Press + or - button until the day to change is displayed.
Press the OK button to choose this day [ON 1] icon will be on, hours and minutes display is flashing.
Press + or - button until the required hours and minutes is displayed, the time will change in minute steps.
Press the OK button to accept the hours and minutes.
The display will automatically advance to the next ON/OFF time to modify as follows: An ON time will advance to its corresponding OFF time.
If an ON time has been set to "--:--, because it is not used, then the advance will be to ON I of the next day An OFF time will advance to the next ON time of that day, even if the next ON time has been set to --.--. If the OFF time is OFF 2 then advance will be to the first time of the next day.
If the advance has been to a new day then the new days icon will be flashing and the day may be changed using + or - button or accepted using the OK button An unused ON/OFF slot is identified by having the ON time set to If no on periods are required for any day, for example Saturday or Sunday then just set all of the ON times as unused for that day.
To set an ON time to --:--" press the + button until the time changes from "23:50" to "-- To change an ON time of "--:--" to a useable ON/OFF slot press the + or - button and the display will change from "--:--" to 10 minutes after the previous OFF time To ease the entry of a program two things will happen. Firstly a default program will be loaded into the memory when a controller is first used. Secondly when ON/OFF times are set for Monday these times will be automatically copied to Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday 6. Engineer functions Various advanced parameters may be programmed under the engineer function. Press the + button and whilst still holding it press the SETTINGS button to access the engineer function.
The [SET] and [ENGINEER] icons will be displayed.
The engineer function is password protected; the password is a fixed four digit number which will be 1234.
When the controller is waiting for a key input the [OK?] icon will be displayed.
If the UNDO button is pressed during programming then the controller will change the setting which is being programmed back to its original value.
If the UNDO button is pressed twice consecutively at any time during engineer function then the controller will return to normal operation and only items which have been accepted by pressing OK will be changed If no buttons are pressed then after 60 seconds of inactivity the controller will return to normal operation and only items which have been accepted by pressing OK will be changed 6.1 Enter password.
When the Engineer function is first invoked the [PIN] icon is displayed and the display shows 00 00 in the time area with the first 0 flashing.
Press + or - button until the first digit of the PIN code is correct Press the OK button to enter this number.
The second 0 is now flashing.
Press + or - button until the second digit of the PIN code is correct.
Press the OK button to enter this number The third 0 is now flashing.
Press + or - button until the third digit of the PIN code is correct.
Press the OK button to enter this number.
The fourth 0 is now flashing.
Press + or - button until the fourth digit of the PIN code is correct.
Press the OK button to enter this number.
If the PIN code has been entered correctly then the [ENGINEER] icondisplayed to signify that the engineer functions can now be accessed using the SET button. The [ENGINEER] icon will show and access to the engineer function will remain available for 60 seconds after the last button press at which time the [ENGINEER] icon will clear and access will cease without entering the PIN code again.
6 2 Programming Engineering functions.
All Engineering functions will be shown as a code in the first two digits of the display, e g Cl, ti, t2 and a variable in the second two digits.
Press the SETTINGS button until the correct variable code is shown in the display Press OK to select this variable for change.
The variable value will start flashing.
Press + or - button until the variable value is correct.
Press the OK button to accept this value.
The variable value will stop flashing The SETTINGS button can be used to advance to another variable code 6 3 List of engineering variables.
Al: O=Zonel notenabled.
1 = Zone 1 enabled.
Al:P 0 = ignores both PIR channels 1 = responds to PIR channel 1 2 = responds to PIR channel 2 3 = responds to PIR channels 1 and 2 AlL 0 = ignores both LDR sensors I = uses LDR sensor I lux level 2 = uses LDR sensor 2 lux level.
3 = uses average of LDR sensor 1 and LDR sensor 2 lux levels A2 - A6, repeat of Al for zones 2 6 respectively ti: PIR channel 1 occupancy persistence time in 10 minutes, e.g. 9 allows 90 minutes Range: 00 to 24 Default value: 6 t2 PIR channel 2 occupancy persistence time in 10 minutes, e.g. 9 allows 90 minutes Range: 00to24 Default value. 6 t3: Overtime maximum allowed time in 10 minutes, e.g 9 allows 90 minutes Setting 0 effectively disables the function.
Range: OOto6O Default value 6 Li: LOR sensor I calibration value.
Range 0 to 99 Default value. 50 L2 LDR sensor 2 calibration value.
Range 0 to 99 Default value: 50 Hi Displays the Zone I lighting hours since last service reset. Reset is achieved by pressing the OK button whilst the log is displayed.
Range 0 to 9999 H2 - H6, repeat of Hi for zones 2 6 respectively.
P1: 0=settings menu not protected by PIN.
i=settings menu protected by PIN.
Default value: 0 P2: Settings menu PIN number Range: 0000 to 9999 Default value. 1234 P3. 0=do not reset all of program and engineering data to default settings 1 =reset all of program and engineering data to default settings.
Default value 0 The above command allows the engineer to reset the whole program memory and engineers settings back to the new control default settings. When the reset occurs P3 is changed back to 0 and therefore disabled again.
G. LIGHTING INTERFACE SPECIFICATION
1. Outline This section describes another application of the universal controller as a multi-channel lighting controller.
2. Specifications
2.1 Typical external connections * Mains Live supply input * Mains Neutral supply input.
* Channel I output.
* Channel 2 output * Output common.
* Channel 1, PIRI (+12V/OV/Signal in/NC out) * Channel 1, PIR2 (+12V/OV/Signal in/NC out) * Channel 1, PIR3 (+12V/OV/Signal in/NC out) * Channel 1, PIR4 (+12V/OV/Signal in/NC out) * Channel 2, PIR1 (+12V/OV/Signal in/NC out) * Channel 2, PIR2 (+12V/OV/Signal in/NC out) * Channel 2, PIR3 (+12V/OV/Signal in/NC out) * Channel 2, PIR4 (+12V/OV/Signal in/NC out)
2.2 Typical electrical specifications
* Power supply is SELV isolated therefore low voltage wiring to the control does not ) need to be mains level rated (unless used with the Autolux 2 channel which does not provide isolation).
* Control power consumption is 12W.
* Mains input is fuse protected * PIR supply voltage is unregulated l2Vdc nominal (10.OVdc to 20 OVdc actual), maximum current 600mA, fuse protected.
3. Operation The PIR inputs are arranged in 2 channels of 4 FIRs. Each channel connects to one of the Autolux 2 zone unit or Autolux 6 zone unit PIR inputs The PIR relay contacts are to be of the NC, normally closed, variety whereby activation causes opening of the contact. All of the PIR contacts in a channel are effectively in series so that when any one operates the Autolux will see a change of condition.
Each FIR unit has a 4 way screw terminal for connection which provides + 12V supply, OV supply and NC contact in and out connections.

Claims (4)

  1. I An electronic controller for controlling the environment within a building, the controller comprising* one or more inputs, one or more outputs; a processor configured to received signals from said one or more inputs and to control said one or more outputs; and a memory preprogrammed with a plurality of pre-prepared control programs from which a user may select one or more control programs.
  2. 2. An electronic controller as claimed in Claim 1, further comprising one or more sets of microprocessor-controlled variable components, each set of microprocessor-controlled variable components being associated with one of said one or more outputs, wherein each set of microprocessor- controlled variable components is adjustable by the processor, in accordance with one or more control programs selected by a user, to adjust the electrical characteristics of the associated output.
  3. 3. An electronic controller as claimed in Claim 2, wherein the microprocessor-controlled variable components are selected from a group comprising: variable resistors or potentiometers, variable capacitors, variable inductors, variable transformers.
  4. 4. An electronic controller as claimed in Claim 2 or Claim 3, wherein a local microprocessor is provided to control each set of microprocessorcontrolled variable components.
    5 An electronic controller as claimed in any preceding claim, further comprising a non- volatile memory for storing user settings and/or user preferences 6 An electronic controller as claimed in any preceding claim, configured to control one or more functions selected from a group comprising heating, hot water, lighting, air conditioning, ventilation, 7. An electronic controller substantially as herein described with reference to and as illustrated in any combination of the accompanying drawings.
GB0502300A 2005-02-04 2005-02-04 Pre-programmed controller for building management system with variable microprocessor-controlled components Withdrawn GB2422912A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101470427B (en) * 2007-12-27 2012-07-18 新动力(北京)建筑科技有限公司 Building automatic control system and method based on wireless positioning

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US5761083A (en) * 1992-03-25 1998-06-02 Brown, Jr.; Robert J. Energy management and home automation system
JPH10320035A (en) * 1997-05-15 1998-12-04 Daidan Kk Building management system
US20020010518A1 (en) * 2000-02-25 2002-01-24 Reid Drew A. Energy management system
CA2352557A1 (en) * 2001-07-02 2003-01-02 Ian C. Campbell System and method for indoor environmental monitoring and control
WO2003049248A2 (en) * 2001-11-30 2003-06-12 Yingco Electronic Inc. System for remotely controlling energy distribution at local sites

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Publication number Priority date Publication date Assignee Title
US4217646A (en) * 1978-12-21 1980-08-12 The Singer Company Automatic control system for a building
EP0513443A1 (en) * 1991-05-06 1992-11-19 Koninklijke Philips Electronics N.V. Building management system
US5761083A (en) * 1992-03-25 1998-06-02 Brown, Jr.; Robert J. Energy management and home automation system
JPH10320035A (en) * 1997-05-15 1998-12-04 Daidan Kk Building management system
US20020010518A1 (en) * 2000-02-25 2002-01-24 Reid Drew A. Energy management system
CA2352557A1 (en) * 2001-07-02 2003-01-02 Ian C. Campbell System and method for indoor environmental monitoring and control
WO2003049248A2 (en) * 2001-11-30 2003-06-12 Yingco Electronic Inc. System for remotely controlling energy distribution at local sites

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CN101470427B (en) * 2007-12-27 2012-07-18 新动力(北京)建筑科技有限公司 Building automatic control system and method based on wireless positioning

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