JPH04273943A - Air conditioner - Google Patents

Abstract

PURPOSE:To make it possible to detect piping error with high accuracy by allowing indoor equipment to execute a test run based on its specification if a desired indoor equipment address is specified by an actuator in an air conditioner having indoor machines. CONSTITUTION:A test run mode is set by depressing a test run pushbutton switch 5 of a remote controller 1, and then an address of an air conditioning unit to be test-run is specified by depressing an address pushbutton switch 4. A control section 7 displays various kinds of addresses pre-stored to an indicator 2 based on the depressing of the address pushbutton switch 4. Then, an operation/suspension pushbutton switch 6 is depressed. The control section 7 displays characters which indicate test run mode for cooling or heating operation to the indicator 2 and transmits the address and test run modes to the whole air conditioning unit 10, 20,... to 50 by way of crossover 8. Then, an air conditioning unit equivalent to the specified address receives them and starts test run.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner in which the operating conditions of a plurality of indoor units are commonly indicated by a single controller.

0002

2. Description of the Related Art Some air conditioners are equipped with a plurality of indoor units and the operating conditions of each indoor unit are commonly indicated by a single controller.

[0003] On the other hand, when installing an air conditioner, it is necessary to carry out a test run and thoroughly check whether the compressor and fan operate normally, and also whether there are any incorrect connections in the piping or wiring.

0004

[Problem to be solved by the invention] However, when the operating conditions of multiple indoor units are commonly instructed using one controller as described above, all the indoor units must be tested at the same time under the same conditions. , it is difficult to accurately identify incorrect piping or wiring.

[0005] For this reason, it is necessary to individually connect a plurality of operating devices prepared in advance to each indoor unit and perform a trial run of each indoor unit, which is a troublesome task.

[0006] This invention has been made in consideration of the above circumstances.
The purpose of this is to test run each indoor unit using a single controller instead of having to prepare multiple controllers and connect them to each indoor unit one by one. An object of the present invention is to provide an air conditioner that can perform the following steps individually, and that can easily and reliably detect incorrect piping or wiring.

[0007]

[Means for Solving the Problems] In an air conditioner that is equipped with a plurality of indoor units and in which the operating conditions of each indoor unit are commonly indicated by a single controller, the controller is provided with a The indoor unit includes means for specifying an address of an arbitrary indoor unit, and means provided for each of the indoor units to execute a trial run according to an instruction from the operating device when the specified address matches the address of the indoor unit.

[0008]

[Operation] When the address of a desired indoor unit is specified using the controller and a test run is instructed, the indoor unit corresponding to the specified address executes the test run.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a remote control type operating device (hereinafter referred to as a remote control), a display section 2,
Operation condition input button 3, address button 4, test run button 5, operation/
It has a stop button 6 and a control section 7.

FIG. 2 shows the operation panel of this remote control 1.

That is, the display section 2 is provided on the left side of the board surface,
Multiple operating condition input buttons 3 from the top to the bottom on the right side
, one address button 4, one trial run button 5, and one run/stop button 6 are provided.

[0013] The display unit 2 is, for example, a liquid crystal display,
It has three individual information display areas 2a, 2b, and 2c, as well as a numerical value display area 2d.

The operating condition input button 3 is used to input cooling operation mode, heating operation mode, dehumidification operation mode, indoor temperature, indoor air volume,
This is for inputting operating conditions such as numerical data.

The address button 4 is used to specify the address of the air conditioning unit to be tested among the air conditioning units described later.

The trial run button 5 is used to instruct a trial run of each air conditioning unit.

The run/stop button 6 is used to instruct the operation and stop of each air conditioning unit.

On the other hand, as shown in FIG. 2, a crossover wire 8 connects a plurality of air conditioning units 10, 20, .
are connected sequentially.

The air conditioning unit 10 consists of an indoor unit and an outdoor unit, with an indoor control unit 11 for the indoor unit and an outdoor control unit 1 for the outdoor unit.
2, and both are connected by a signal line. An indoor fan motor 13 and an indoor temperature sensor 14 are connected to the indoor control unit 11. The outdoor control unit 12 includes a four-way valve 15,
An outdoor fan motor 16 and a compressor motor 17 are connected.

The air conditioning unit 20 consists of an indoor unit and an outdoor unit, with an indoor control unit 21 for the indoor unit and an outdoor control unit 2 for the outdoor unit.
2, and both are connected by a signal line. An indoor fan motor 23 and an indoor temperature sensor 24 are connected to the indoor control section 21 . The outdoor control unit 22 includes a four-way valve 25,
An outdoor fan motor 26 and a compressor motor 27 are connected.

The air conditioning unit 50 consists of an indoor unit and an outdoor unit, with an indoor control unit 51 for the indoor unit and an outdoor control unit 5 for the outdoor unit.
2, and both are connected by a signal line. An indoor fan motor 53 and an indoor temperature sensor 54 are connected to the indoor control section 51. The outdoor control unit 52 includes a four-way valve 55,
An outdoor fan motor 56 and a compressor motor 57 are connected.

The control section 7 of the remote controller 1 also includes a storage means for storing the address of the indoor unit of each of the air conditioning units;
It has address designating means for designating the address of any indoor unit among the indoor units of each air conditioning unit according to the operation of the address button 4.

[0023] Indoor control section 11, 21,...51 of each indoor unit
includes a storage means for storing the address of the indoor unit, a comparison means for comparing this stored address with an address designated by the remote controller 1, and a test run according to the instructions from the remote controller 1 when the two addresses match in this comparison. and test run means for executing the test run.

Next, the operation of the above configuration will be explained.

The cooling operation mode and desired indoor temperature are set using the operating condition input button 3 of the remote controller 1, and the operation/stop button 6 is pressed.

Then, from the remote control 1 to the air conditioning unit 10
, 20, . . . , 50 as operating conditions, and all the air conditioning units 10, 20, . . . , 50 start cooling operation at the same time. Thereafter, when the operation/stop button 6 of the remote controller 1 is pressed, the cooling operation of all the air conditioning units 10, 20, . . . , 50 is stopped.

The same applies when the heating operation mode or the dehumidification operation mode is set.

On the other hand, when installing an air conditioner,
It is necessary to perform a trial run and thoroughly check whether the compressor and fan are working properly, and also check for any incorrect connections in the piping or wiring.

In this case, the trial run button 5 of the remote controller 1 is pressed to set the trial run mode, and then the address button 4 is pressed.

At this time, the control section 7 sequentially displays various pre-stored addresses in the numerical display area 2d of the display section 2 each time the address button 4 is pressed. That is, as shown in FIG. 3, numerical data representing an address is displayed on the left side of the numerical display area 2d. For example, if the address is the indoor unit of the first air conditioning unit 10, the numerical data "1" is displayed, and if the address is the address of the indoor unit of the second air conditioning unit 20, the numerical data "1" is displayed.

By ceasing to press the address button 4 when the desired address is displayed, the address of the air conditioning unit for which the trial run is to be performed is designated. Then, when the run/stop button 6 is pressed, the control unit 7 displays the character data “L” representing the cooling test run mode or the character data “H” representing the heating test run mode on the right side of the numerical display area 2d of the display unit 2. Display in . This display specifies the cooling trial run mode or heating trial run mode, and can be switched by setting the heating operation mode or heating trial run mode using the operating condition input button 3.

[0032] In this way, the specified address and test run mode are applied to all air conditioning units 10,
20,...50.

The indoor control units 11, 21, . . . 51 of the air conditioning units 10, 20, . Only when both addresses match, a trial run is executed according to the instructions from the remote controller 1. If the two addresses do not match, the test run will not be executed.

Here, the trial run specifically means ignoring the temperatures detected by the indoor temperature sensors 14, 24, . . . , and forcibly performing cooling or heating unless various protection functions are activated.

To cancel the trial run, simply press the run/stop button 6 on the remote controller 1 again. At this time, display section 2
The display returns to the normal operation display.

Therefore, without the troublesome work of preparing multiple remote controllers for test runs and connecting them to each indoor unit one by one, it is possible to test run each indoor unit individually using the original remote controller 1. This makes it possible to easily and reliably detect incorrect piping or wiring. This eliminates equipment troubles after installation and improves reliability.

In the above embodiment, an air conditioner with multiple air conditioning units consisting of an indoor unit and an outdoor unit was explained as an example, but a multi-type air conditioner with multiple indoor units connected to one outdoor unit was explained. It is similarly applicable to air conditioners.

[0038]

As described above, according to the present invention, there is provided a means for specifying the address of an arbitrary indoor unit among the indoor units provided on the controller, and a means provided for each indoor unit for specifying the address of an arbitrary one of the indoor units. and a means for executing a test run according to the instructions from the controller when the address matches the address of the indoor unit,
Instead of the troublesome work of preparing multiple controllers for test runs and connecting them to each indoor unit one by one, it is possible to test run each indoor unit individually using a single controller. Accordingly, it is possible to provide an air conditioner that allows easy and reliable detection of incorrect piping and wiring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a control circuit according to an embodiment of the present invention.

FIG. 2 is a diagram showing the configuration of the operation panel of the remote control according to the same embodiment.

FIG. 3 is a diagram showing an example of a display on the remote control according to the same embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1...Remote control (operator), 2...Display unit, 3...Operating condition input unit, 4...Address button, 5...Test run button, 6...Run/stop button, 7...Control unit, 10, 20,...50... air conditioning unit.

Claims (1)

[Claims] Claim 1: In an air conditioner comprising a plurality of indoor units and in which the operating conditions of each indoor unit are commonly indicated by one operating device, an air conditioner that is provided on the operating device and selects any one of the indoor units. and means provided in each of the indoor units to execute a trial run according to instructions from the operating device when the specified address matches the address of the indoor unit. Air conditioner.