JPH0285633A - Air conditioner - Google Patents

Abstract

PURPOSE:To find an air conditioner in abnormal operation or connection to improve ease of work by operating specified built-in equipment in air conditioning units in the order of the addresses when the air conditioning units are checked for the addresses. CONSTITUTION:After air conditioning units A1 - A16 are installed, a test run switch 3 is operated by an operator to check the normal connection to a remote controller C. Thereby, after the selection of test run mode is judged by a judging device 26, the control is started by an address checking device 2, and room fans FM in the air conditioning units A1 - A16 are started in the order of the addresses (0#, 1#,... 15#) at intervals of delay time (5 seconds). Therefore, the operator is allowed to check the air conditioning units for their addresses easily because the operator has understood the starting order of the room fans FM.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an air conditioner having a plurality of air conditioning units, and in particular, the present invention relates to an air conditioner having a plurality of air conditioning units. Regarding identification of abnormal aircraft.

(Prior art) Conventionally, as an air conditioner, for example,
As disclosed in Publication No. 438, a single remote controller is equipped with a large number of air conditioning units each having a built-in heat exchanger, and is used to uniformly control a plurality of these units to the same operating state as required. A device is known that includes a controller and operates or stops the plurality of air conditioning units at the same time depending on whether or not an operation command signal is output from the remote controller to air condition the room.

(Problem to be Solved by the Invention) By the way, when multiple air conditioning units are controlled by a single remote controller as described above, abnormal operation of each air conditioning unit or special condition of built-in equipment (for example, Each air conditioning unit should be configured so that it can be identified by a single remote controller, etc., in order to confirm the correct connection of each air conditioning unit during installation. It is preferable to do so. Because of this relationship, it is common practice to set an address for each air conditioning unit in advance.

By the way, when diagnosing a failure of an air conditioning unit or confirming normal connection after installation, if there is an air conditioning unit with an abnormal operation or connection, the address of this air conditioning unit can be displayed numerically on the display of the remote controller, for example. Then, the abnormal air conditioning unit is identified and the operator is notified. In this case, in order to be able to confirm the correspondence between the address and the air conditioning unit, that is, which location the displayed address is for the air conditioning unit installed, conventionally the worker has to check the electrical equipment box inside each air conditioning unit. Attach a label, write your own address on this confirmation label, and in the event of an abnormality in operation or connection, refer to the address on the confirmation bell to confirm the air conditioning unit that matches the address displayed on the remote control device. was going on.

However, in the conventional method described above, the worker has to write his/her own address on the confirmation label of each air conditioning unit in sequence, so if the air conditioning unit is installed in the ceiling and is used, The disadvantage is that the workability of confirming one's own address is poor.

In addition, it is easy to make mistakes or omissions when entering your own address, and if you change the address later, you may forget to correct the entered address, which has the disadvantage that it is not certain that the address corresponds to the air conditioning unit. be.

The present invention has been made in view of the above, and its purpose is to mechanically and easily confirm the self-address of each air conditioning unit without the need for an operator to enter the self-address. To improve workability by correctly confirming the self-address of each air conditioning unit and easily finding and confirming an air conditioning unit that is malfunctioning in operation or connection.

In addition, in an air conditioner equipped with multiple systems of multi-type air conditioners in which multiple indoor units are connected to one outdoor unit, the indoor units belonging to each system are Check for each system whether it is properly connected to the unit, that is, whether the refrigerant piping of each indoor unit and crossover wiring for operation control are properly connected to the outdoor unit of its own system. is as difficult as above. In other words, in the past, this confirmation work was done by tracing the above-mentioned crossover wiring or by operating each indoor unit to check the outdoor units that operate in conjunction with it, and these tasks require a lot of man-hours. It takes time to confirm the information, and there are problems in terms of serviceability. In particular, when one remote control device controls the indoor units of its own system and other systems as a group, it is extremely difficult to confirm the proper connection.

Therefore, in the present invention, in an air conditioner equipped with multiple systems of multi-type air conditioners, by operating the indoor unit connected to the outdoor unit from the outdoor unit side for each system, the normal connection state can be checked. It is easy to check.

(Means for Solving the Problem) In order to achieve the above object, in the invention according to claim (1), when confirming the address of each air conditioning unit, predetermined built-in devices of each air conditioning unit are operated in the order of the address. I have to.

As shown in FIG. 1, the specific solution is to include a plurality of air conditioning units l-(AI) to (B16) each having a heat exchanger, and the plurality of air conditioning units (Al) to
A single control means (C) for controlling the operation of (81B)
) is assumed to be an air conditioning system. Each of the air conditioning units (A1) to (B16) has its own address, and with respect to the single control means (C),
An address reading means (25) for reading the addresses of each of the air conditioning units (Al) to (816), a determining means (26) for determining when a specific operation mode is selected, and the determining means (
When the special operation mode determined in step 26) is selected, each air conditioning unit (
Each air conditioning unit (AI) to (B16) in address order
The address confirmation means (27) sequentially controls the operation of the built-in devices Al) to (816) at time intervals that allow confirmation of the order in which their operations start.

Further, in the invention according to claim (2), the single control means (C) is specified as a remote control device that controls a plurality of air conditioning units (Al) to (formerly 6) as a group to the same operating state. ing.

Furthermore, in the invention according to claim (3), the above claim (1)
) with a single control means (C) of multiple air conditioning units (
It is configured with a centralized controller (D) for individually centrally controlling the operations of A1) to (B16), and the address confirmation means (27) is configured such that when the special operation mode determined by the determination means (26) is selected, The configuration is such that only the built-in devices of the air conditioning units (A1) to (B16) corresponding to the designated address are controlled.

In addition, in the invention according to claim (4), the indoor units (A1) to 1 whose operation is sequentially controlled by the address confirmation means (27)
In addition to specifying the blower fan of the heat exchanger as the built-in device in (B16), the invention according to claim (5) specifies the buzzer, and the invention according to claim (6) specifies the blower fan and buzzer of the heat exchanger. It is specified. Further, in the inventions according to claims (7) and (8), the operation of each air conditioning unit (AI) to (B16) itself is sequentially controlled in order of address.

Further, in the invention according to claim (9), one outdoor unit (C, F) has a plurality of indoor units (Di-04).
.

A command means (35) for commanding a specific operation mode for an air conditioner equipped with a plurality of systems of multi-type air conditioners (X, Y) formed by connecting (G1 to G4); During the specific operation mode commanded in (35), the outdoor units (C) and (FM)
), the indoor unit (DI-04) connected to (F)
), (G1-G4) itself or the indoor unit (DI-
B4) and system confirmation means (36) for operating the built-in devices (G1 to G4). In this case, in claim 00), the command means (35) is provided in each outdoor unit (C), (FM) or central controller, and in the invention according to claim 0D, the system confirmation means (36) Indoor unit operated by (old ~ D4),
The built-in devices (G1 to G4) are specified as the blower fan of the heat exchanger.

(Function) With the above configuration, in the invention according to claim (1), the installation of each air conditioning unit (A1) to (B16) is performed after confirming the normal connection, or each air conditioning unit (A1) to (BIG )
When diagnosing a fault in an air conditioner, if the self-address of the air conditioning unit (e.g. (Al)) with an abnormal connection or operation is ascertained from the display on a remote control device, the operator can select a specific operation mode (e.g. "trial run mode" or "Inspection mode" etc.)
is selected.

When this specific driving mode is selected, the determination means (2G) determines when this particular driving mode is selected, and the address verification means (
27) starts operating, and each air conditioning unit (AI) to (B
16) built-in equipment (FMM) is connected to each air conditioning unit (FMM).
At) to (131B), the operations are started sequentially at predetermined time intervals in the order of the addresses, so the operator can check the order in which the built-in devices start operating and easily understand that this order of operation is the order of the addresses. Ru.

Here, each air conditioning unit (AI) ~ (B1
Confirmation of the address in 6) is done by understanding the start order of the operation of the built-in device (FMM), so it is mechanically easier than the conventional method of writing the own address on a confirmation label in advance. It is possible to check accurately and to improve the checking work. In addition, air conditioning unit (A1) ~
If the built-in device does not start operating in (I315) or (B16), it can be determined that the air conditioning unit has an operational abnormality or a connection abnormality.

In that case, in the invention according to claim 2, since the plurality of air conditioning units (A1) to (B1.6) are group-controlled to the same operating state by the remote control device (C), the plurality of air conditioning units (A1 ) to (B16) are controlled individually, the control configuration is simpler.

Further, in the invention according to claim (3), the operation of the plurality of air conditioning units (A1) to (B16) is controlled by a centralized controller.
D) allows individual centralized control, so if you specify the address you want to check on the central controller (D), the air conditioning units (A1) to (B) corresponding to this specified address will be controlled individually.
The built-in device (FMM) of 16) is the address confirmation means (27
), only the built-in equipment of one air conditioning unit (A1) to (B15) or (B16) that requires confirmation is operated, and the others are kept stationary.

Furthermore, in the invention according to claim (4), when confirming the address, the blower fans of the heat exchangers of the indoor units (A1) to (B16) are sequentially activated to confirm the address, and the address is confirmed in accordance with claim (5). According to the invention, each indoor unit (A1
) to (B1[i) are activated in sequence, claim (6)
In the invention according to the above, in addition to the buzzer, the blower fan of the heat exchanger operates.

In addition, in the inventions according to claims (7) and (8), each of the air conditioning units (A1) to (BIG) operates in the order of their addresses.

In addition, in the invention according to claim (9), when the specific operation mode is selected, for each outdoor unit (C) and (FM),
In other words, for an outdoor unit (for example, C) for which you want to confirm the correct connection status, the multiple indoor units (D1) to (B4) connected to the outdoor unit (C) or their built-in devices are controlled to operate. If there is one (for example, B2) that does not operate among the indoor units (D1) to (B4) that should be properly connected, it is easily determined that this indoor unit (B2) is not properly connected.

In that case, in the invention according to claim ('IO), since the specific operation mode is commanded by each outdoor unit (C), (1'), the specific operation mode is commanded at the same place where the normal connection is confirmed. Can be done. Further, when the above command is given by a centralized controller, the operator does not need to travel to the location where each outdoor unit is placed, and can give the command from one location. Furthermore, in the invention according to claim (11), each indoor unit (DI to D4), (Gl to G4) is
), the built-in heat exchanger fan operates, eliminating the need for additional equipment to confirm proper connections.

(Effects of the Invention) As explained above, according to the air conditioner according to claim (1), when the operation of a plurality of air conditioning units is controlled by a single control means, each air conditioning unit and its address When confirming the correspondence with the address confirmation label, the built-in equipment of each air conditioning unit was activated sequentially at set time intervals in the order of the address using the single control means described above. Compared to the case where addresses are confirmed sequentially, it is not necessary to enter the address, and the correspondence between the address and the air conditioning unit can be mechanically and easily and accurately confirmed, thereby improving the confirmation process. be able to.

Furthermore, in the invention according to claim (2), since a plurality of air conditioning units can be group-controlled to the same operating state by a remote control device, the control configuration is simpler than when controlling a plurality of air conditioning units individually. can.

Furthermore, in the invention according to claim (3), since the operation of a plurality of air conditioning units is individually and centrally controlled by a central controller, only the built-in equipment of one air conditioning unit that requires address confirmation can be operated, and the address Power loss during confirmation can be minimized.

In addition, in the invention according to claim (4), since the blower fans (originally built-in devices) of the heat exchangers in each air conditioning unit are activated in sequence in the order of addresses, it is not necessary to additionally install a device for address confirmation.

In the invention according to claim (5), since the buzzers of each air conditioning unit are activated in sequence, there is no need for an operator to move near each air conditioning unit.

In the invention according to claim (6), in addition to the buzzer, the blower fan of the heat exchanger is activated in sequence, so there is no need to install additional equipment or move the worker, and address confirmation can be made easier accordingly.

In addition, in the inventions according to claims (7) and (8), since each air conditioning unit is operated as a whole in the order of the addresses, it is possible to easily confirm whether or not the air conditioning units are operated by the air conditioning action, making it easy to confirm the addresses. Can be done.

Further, in the invention according to claim (9), when a plurality of systems of multi-type air conditioners are provided, the indoor unit connected to each outdoor unit is operated separately, so that the indoor unit connected to the outdoor unit is operated separately. By checking whether or not the indoor unit is operating, it is possible to easily check whether the indoor unit is properly connected.

In particular, when commanding the operation of indoor units from each outdoor unit, the command can be made from the same location where proper connections are confirmed, and when commanding from a centralized controller, the operator can There is no need to move to the installation location. Furthermore, if the blower fan of the heat exchanger built into each indoor unit is activated when confirming proper connection, there is no need to additionally install equipment for confirming proper connection.

(Example) Hereinafter, an example of the present invention will be described based on the drawings from FIG. 2 onwards.

FIG. 2 shows an embodiment in which a plurality of air conditioning units are uniformly controlled to the same operating state by one remote control device. In the figure, (^1) to (Bl(i) constitute a large number of air conditioning units (only the first three and the last one are shown in the figure) that have the same internal configuration and have an indoor heat exchanger inside. In addition, (B1) to (B16) are the indoor units (A
The outdoor unit is coated with the same number of gold films corresponding to I) to (A16) and has a compressor, a four-way switching valve for cooling/heating switching, an electric expansion valve, and an outdoor heat exchanger inside. Each of the above indoor units (A
1) to (A16) are the corresponding outdoor units (B1) to (
BLG) so that refrigerant can be circulated, forming a large number (16 systems) of refrigerant circulation systems.

In addition, (C) is a remote control device (hereinafter referred to as a remote control equipment). The remote control device (C) is connected to each of the indoor units (AI) to (A16) via a signal line (1) so as to be able to send and receive signals, and is A16) is connected to the corresponding outdoor units (B1) to (B16) via signal lines (2) so that signals can be transmitted and received.

Inside the remote control device (C), as shown in FIG. (4), and all indoor units (A1) to (AlG) according to the operation of the switches on the operation section (4).
Each indoor unit (Al
) to (A16), the main body microcomputer (5) generates control signals including operation mode command signals, master unit signals, etc., and the control signals created by the main body microcomputer (5) are transmitted to each indoor unit ( A transmission circuit section (6) for transmitting data to A1-A16 is provided.

On the other hand, each of the above-mentioned indoor units (At) to (A16) has an address inside it (only the internal configuration of the indoor unit (Al) is shown), which is comprised of a dip switch, etc., in which its own address is set by the setter. a setting section (1o), a transmission circuit section (11) that receives a control signal transmitted from the remote control device (C), and a control signal received by the transmission circuit section (11) and the address setting section (10). A transmission microcomputer (12) that performs functions such as manually inputting the self-address set in , and detecting normal reception, and a motor (I'M) for the indoor ventilation fan of the built-in indoor heat exchanger. It has a main body control microcomputer (13) that controls the operation of the main unit, and a transmission circuit section (14) that transmits the received control signal to the corresponding outdoor unit (A1).

The main body control microcomputer (13) connects a fan motor drive relay (RY) with a normally open contact (1?Y-1) interposed in the drive circuit (15) of the indoor fan motor (FMM) to 0N10FF. 'Have the ability to control.

Therefore, each of the above indoor units (At) to (A16) is
The address setting section (10) sets the own address as rO#J, rl #J, r2 #J...r1
5#J is set as a consecutive number.

Furthermore, inside each of the outdoor units (B1) to (B16) (only the outdoor unit (Bl) is shown), there is a transmission system for receiving control signals transmitted from the transmission circuit section (14) of the corresponding indoor unit (At). The control signal received by the circuit section (20) and the transmission circuit section (20) is inputted to drive the motor (MC) for operating the built-in compressor and the motor (MC) for the outdoor fan of the outdoor heat exchanger.
MP) and a main body control microcomputer (21) for controlling the operation of the electric expansion valve (BY).

Although not shown, the remote control device (C) has a function of displaying, on a liquid crystal panel or the like, the address of an indoor unit that has an abnormal connection with the remote control device (C).

Next, during installation of each indoor unit (A1) to (A16), special control of each indoor unit (A1) to (A16) is performed using the remote control device (C) when confirming normal connection later or when diagnosing a failure. (Control according to the present invention) will be explained based on the control flow shown in FIG.

First, the power starts when the power is turned on based on the operation side operation of the operation l stop switch, and each indoor unit (A
1) to (A16) address #(0#, l#...15
#), then in step SA2, the indoor ventilation fans (
Each delay time Td for activating the FMM is calculated using the formula % formula % based on the read address #.

Here, tx is the delay time interval, and each indoor unit (At
) to (A16) built-in equipment (indoor ventilation fan (FMM)
) is set to a time interval, for example, 5 seconds, at which the start order of the operations can be confirmed.

Thereafter, in step SA3, it is determined whether there is an input (input of a push operation signal) to the trial run switch (3), and if there is no input, the process immediately ends and returns to the normal stopped state. on the other hand,
When there is an input, it is determined that the installation will be performed later to confirm the normal connection, and in step sA4, the timer for the delay time Td of each indoor unit (^l) to (A16) set above is started. , the counting is performed in step SAS, and it is determined in step SA6 whether or not each delay time Td has timed up. If the time has been up, step SA7 is used to perform the counting in the room corresponding to the timed-up delay time Td. The rotational drive of the indoor blower fans (FMM) of the machines (AI) to (A15) or (A16) is started and controlled.

Then, in step SA8, the driving time (air blowing operation time) T of the indoor ventilation fan (FMM) is determined.

The timer is started, the count is performed in step SA'3, and when the timer To times out in step 5AIO, the drive control of the indoor ventilation fan (FM) is stopped in step SAI+, and the normal stop is performed. Return to state.

Therefore, in the control flow of FIG. 4 above, step S
A1 constitutes an address reading means (25) configured to read the addresses (0#, 1#...15#) of each air conditioning unit (A1) to (A16), and step SA3 constitutes a test run switch. A determining means (26) is configured to determine when a specific operation mode (trial run mode) is selected based on the presence or absence of the operation (3).

Further, in steps SA 2 and SA 4 to 5A11, when the test run mode determined by the determination means (26>) is selected, each of the indoor units (A1) to (A16) read by the address reading means (25) is Address (0#, 1#・
...15#) In order, the indoor blower fans (FMM) (built-in devices) of each indoor unit (^l) to (AIG) are activated at delay intervals td.
The address confirmation means (27) is configured to sequentially control the operation at a time interval of 5 seconds (a time interval at which the order in which the indoor ventilation fan (FM) starts to operate can be confirmed).

Therefore, in the above embodiment, each of the 16 indoor units (AI) to (A16) and the outdoor units (B1) to (Bl[i
) is uniformly group-controlled by a single remote control device (C), and all indoor units (A1) to (A1.6)
The heating or cooling operation is performed, and during each operation, the air conditioning capacity is adjusted to the same level and the air conditioning capacity is controlled to be stopped at the same time.

Therefore, each indoor unit (A1) to (A16) will be installed later.
When attempting to confirm normal connection to the remote control device (C), the test run switch (3) is operated by the operator. As a result, the determination means (26) determines when the trial run mode is selected, and the address confirmation means (26) determines when the trial run mode is selected.
7) is started, and each indoor unit (AI) to (A1
6) indoor blower fan (FMM) has its address (0#
, l#...15#> at delay time intervals of Td (5 seconds), the operator must understand the starting order of each indoor ventilation fan (FMM) and start each fan. Each address of the indoor units (^l) to (A16) can be easily confirmed.

In that case, the operator only has to know the order in which each indoor fan (FMM) starts operating, so the operator does not have to read the address written on the label of the electrical equipment box one by one as in the past, You can easily understand which addresses (A1) to (B16”) are, and you can easily understand which addresses (A1) to (B16”) are, and you can easily identify the addresses and each indoor unit (
Correspondence with AI) to (A16) can be easily and definitely confirmed, and the efficiency of the confirmation work can be improved.

Also, Figure 5 shows the indoor unit (AI) ~ (
Instead of activating the indoor ventilation fan (FMM) in A16), a separately installed buzzer was activated as a built-in device.

FIG. 5 shows a control flow for operating the buzzer. The control flow is similar to the control flow in FIG. 4 above,
Only the parts that differ from this are shown by adding the symbol "'" to the same step numbers as in FIG.
Start controlling the operation of the buzzers I) to (AI5) or (AlG), and then set the ringing time To in step sA8'.
Start the timer, and when the time To times out in step 5AIG', start the timer in step 5AII°.
The operation control of the buzzer is stopped and the process returns to the normal stop state. Therefore, when the address order is notified by a buzzer, the operator can easily confirm the address order without approaching the vicinity of each of the indoor units (A1) to (A16).

Furthermore, FIG. 6 shows a control flow in which an indoor ventilation fan (FMM) is operated in addition to the operation of the above-mentioned buzzer, and only the parts that are different from the above-mentioned FIGS. 4 and 5 are illustrated. The control is the same as in the above embodiment. Therefore, since the address order is notified by both the indoor ventilation fan (FMM) and the buzzer, it is possible to easily confirm the address order using the other device even in a situation where it is difficult to confirm the address order using only one of them.

In addition, FIG. 7 shows the delay time Td of the indoor units (AI) to (A16) and the outdoor units (B1) to (B16) themselves in address order (instead of operating the indoor blower fan (FM) and buzzer) as described above. Only the parts different from those in FIGS. 4 and 5 above are shown, and the control is the same as in the above embodiment. Step SA7° of the control flow in FIG. 7 above.゛~The addresses of each air conditioning unit (A1) to (B16) read by the address reading means (25) when the trial operation mode (special operation mode) determined by the determining means (26) is selected in step SAl+''' In order, the indoor units (At) to (A16) and the outdoor units (B1) to
(B1B) itself constitutes an address confirmation means (17') that sequentially controls the operation at a time interval (delay time Td) that allows confirmation of the start order of the operation. Therefore,
Indoor units (A1) to (A1.6) and outdoor units (B1) to (
B16) Since the address order is notified by its own operation, the address order can be easily confirmed by the cooling air conditioning or heating air conditioning.

Furthermore, FIG. 8 shows another embodiment, in which a centralized controller (D) is used in place of the remote control device used as a single control means in the above explanation, and the difference is that the central controller (D) is used as a single control means. Each indoor unit (A1) ~ with the controller (D)
(A16) The heating operation or cooling operation is performed individually.

In other words, in FIG. 8, each of the indoor units (A1) to (A16) is connected to a signal line (3) so that control signals can be sent and received individually to a centralized controller (D) installed in a remote control room in a high-rise building, etc. connected via the central controller (
D), each of the indoor units (A1) to (A16) is configured to perform heating operation or cooling operation and operation/stop control thereof independently of each other. In addition, each indoor unit (A
1) to (A16) are remote control devices (C1) to (A16), respectively.
(116) are connected via the signal line (4) so as to be able to send and receive signals, and each of the remote control devices (CI) to ((11
In B), operation or stop control is performed individually. In addition, each indoor unit (Al) ~ (A16
) is the same as that shown in FIG. 3 above, so illustration and explanation thereof will be omitted.

Next, each indoor unit (AI) by the centralized controller (D)
- (A16) address order confirmation control (installation is later confirmed control of normal connection) is shown in FIG. In this control flow,
When the power is turned on by operating the run/stop switch in step SBI, each indoor unit (A1
) to (A16) address #(0#, 1#...15#
) and manually specify the address that the worker wants to check as appropriate.

After that, in step SB2, it is determined whether there is human power (input of push operation signal) of the trial run switch (3), and if there is input, the installation will be performed at the time of later confirmation of normal connection, so in step SB3, the address specified above is determined. Indoor unit (A
1) - (A15) or (A16) indoor ventilation fan (F
MM) drive control is started.

After that, in step SB4, turn on the trial run switch (3) again.
The presence or absence of human power is determined, and if there is human power, the operation control of the indoor ventilation fan (FMM) is continued in step ses, while if there is no input, the operation control of the indoor ventilation fan (FMM) is continued in step S86. Stop and exit.

According to the control flow shown in FIG. 9 above, when the special operation mode (test operation mode) determined by the determination means (26) is selected,
Indoor unit (AI) ~ (A1) corresponding to the specified address
6) constitutes an address confirmation means (27°) that controls the operation of the indoor ventilation fan (FMM) (built-in device).

Therefore, in this embodiment, during installation, when confirming the normal connection later (when the test run switch (3) is pressed), the address of the indoor unit in the abnormally connected state is, for example, the central controller (D
), if you specify this address, the indoor fan (FMM) of the corresponding indoor unit will start operating, so you can easily and immediately understand the correspondence between the address and the indoor unit. can.

In addition, in the above explanation, the installation is for each indoor unit (A1) to (
Although the method has been applied to confirming the normal connection of the AlG), it can also be similarly applied when diagnosing the failure of each indoor unit (AI) to (^16). In addition, in the above explanation, the application was applied to a normal air conditioner in which one outdoor unit corresponds to - indoor units, but the present invention applies to a plurality of indoor units for - outdoor units. Of course, the present invention can also be applied to a so-called multi-type air conditioner in which two types of air conditioners are connected in parallel.

Further, FIG. 10 shows an embodiment of the invention according to claim (9). In the same figure, (C) is an outdoor unit, (Dl) ~
(D4) is four indoor units, and each of the indoor units (old) to (D4) is connected in parallel to the outdoor unit (C) through refrigerant piping (not shown) to achieve multi-type air conditioning. In addition, each indoor unit (old) to (D4) is equipped with a remote control device (El) to
(E4) is connected, each indoor unit (DI) to (D4
) are connected to each other by crossover wiring (30) so that signals can be sent and received.

Similarly, (Y) is a multi-type air conditioner of another system, and the air conditioner (Y) is one outdoor unit (
FM) and four indoor units (G1) to (G4) connected in parallel with this via refrigerant piping, and crossover wiring (31)... are connected so that signals can be exchanged. Furthermore, the indoor unit (Gl) shares the remote control device (E4) with the indoor unit (D4) of another system, and the indoor units (D4) and (G1) are grouped together by the remote control device (E4).
The configuration is such that it is operated by Other indoor unit 1-(G
2) ~ (G4) is a self-dedicated remote control device (112) ~
(114).

Next, FIG. 11 shows a state transition diagram of the control circuit for checking the proper connection of the indoor units in the air conditioners (X) and (Y) of each system. In the figure, the confirmation control circuit (32) is connected to each indoor unit (c).

(F), or a centralized control (not shown). This centralized controller is placed, for example, in a centralized control room such as a high-rise building. Since the configuration of each system is the same, the air conditioner (X) will be described below. In the figure, the confirmation control circuit (32) has three positions: a forced fan ON position, a release 1 position, and a release 2 position in a normal cooling operation mode of the outdoor unit (C) that is not a defrost operation. The release 2 position is from all indoor units (normally Dl) to (D4) connected to the outdoor unit (C), but in case of incorrect connection it may be another indoor unit). This is the position taken when the operation stop signal is received and the line inspection bin, which is built into the outdoor unit (C) and is used, for example, for inspection at the time of factory shipment, is short-circuited by the operator. When the MDS pin for confirming proper connection is operated by the operator to the ON side, the forced fan will transition to the ON position, and at this forced fan ON position, all indoor units connected to the outdoor unit (C) or This activates the built-in equipment, such as the blower fan of the indoor heat exchanger.

When the operator operates the MDS pin to the OFF side at the forced fan ON position, the fan returns to the release 2 position.

On the other hand, when an operation signal is received from any of the indoor units connected to the outdoor unit (C) at the release 2 position and the forced fan ON position, or when the line inspection bin is released, the transition to the release 1 position occurs. At this position, when stop signals are received again from all the indoor units connected to the outdoor unit (C) and the line inspection bin is short-circuited, the release 2 will wait for a command to confirm the proper connection of the indoor units. Move to a new location and wait.

Therefore, in FIG. 11, when the MDS pin is operated to the ON side at the release 2 position and transited to the forced fan ON position, the command means (35 ). Also, due to the forced fan ON position, the outdoor unit (C), (F
) Separately, the indoor units (old) to (D4) and (G1) to (G4) connected to the outdoor units (C) and (F)
It constitutes a system confirmation means (3G) that operates the blower fan itself or its built-in device.

Therefore, in this embodiment, when the operator operates the PvIDS pin of the outdoor unit (FM) of the air conditioner (Y) to the ON side at the release 2 position in FIG. Indoor unit (Gl) ~ (G4
), the confirmation control circuit (32) turns on the forced fan O shown in Fig. 11.
Transition to N position and all indoor units (CI) to (G
4) Activate the built-in heat exchanger fan.

In that case, among the indoor units (G1) to (G4) that should be connected to the outdoor unit (FM), for example, only the indoor unit (G2) is connected to the outdoor unit (FM) due to incorrect connection of the refrigerant piping or crossover wiring (31). ), the indoor unit (62) does not operate, so it can be easily determined that the indoor unit (G2) that does not operate is an indoor unit that is not properly connected.

In that case, the command means (35) is connected to each outdoor unit (C).
, (F), the specific operation mode for confirming normal connection can be commanded from each outdoor unit (C), (FM), so the specified operation mode can be specified at the same location as the location where normal connection is confirmed. Operation mode can be commanded.

Further, when commands are issued using a centralized controller, the commands can be issued from one location. Furthermore, since the blower fans of the heat exchangers built in each of the indoor units (Gl) to (G4) operate when confirming proper connection, additional equipment for confirming proper connection is not required.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the invention according to claim (1). Figures 2 to 9 show embodiments of the present invention, Figure 2 is a configuration diagram when air conditioning units are group controlled by a remote control device, and Figure 3 is a diagram showing the internal configuration of the remote control device, indoor unit, and indoor unit. 4 and 5 are diagrams showing the control flow for address confirmation by the remote control device, Figures 6 and 7 are diagrams showing the main part of the same control flow, and Figure 8 is a diagram showing the central controller. Figure 9 is a diagram showing the main part of the control flow, Figure 10 is a schematic diagram of a multi-type air conditioner, and Figure 11 is a diagram of the confirmation control circuit. It is a state transition diagram explaining operation|movement. (AI) ~ (^16)... Indoor unit (air conditioning unit)
, (B1) to (B16)...Outdoor unit (air conditioning unit), (C)...Remote control device (single control means), (
D)... Centralized controller, (3)... Trial run switch, (FMM)... Indoor ventilation fan, (25)...
・Address reading means, (26)...discrimination means, (27
)(27''), (27''')...Address confirmation means,
(C), (FM)...Outdoor unit, (Dl) to (D
4), CI) ~ (G4)... Indoor unit, (32
)... Confirmation control circuit, (35)... Command means, (
36)...System confirmation means. Figure 9 ￥:, Figure 6 Figure 7

Claims (11)

[Claims] (1) Air conditioning units (A1) to (B1) with heat exchangers
6) and a single control means (C) for controlling the operation of the plurality of air conditioning units (A1) to (B16), wherein each of the air conditioning units (A1) to (B16) each have its own address, and the single control means (C) also includes an address reading means (25) for reading the addresses of each of the air conditioning units (A1) to (B16). , a determining means (26) for determining when a specific driving mode is selected; and the determining means (26).
Each air conditioning unit (A1) read by the address reading means (25) at the time of selecting the special operation mode determined by
~(B16) in the order of addresses of each air conditioning unit (A1)
An air conditioner comprising address confirmation means (27) that sequentially controls the operation of the built-in devices (FM) of (B16) at time intervals that allow confirmation of the order in which their operations start. (2) The air conditioner according to claim (1), wherein the single control means (C) is a remote control device (C) for group-controlling the plurality of air conditioning units (A1) to (B16) to the same operating state. . (3) Air conditioning units (A1) to (B1) with heat exchangers
6) and a centralized controller (D) for individually centrally controlling the operation of the plurality of air conditioning units (A1) to (B16), the air conditioner comprising: (A1) to (B16) each has its own address, and the centralized controller (
D) includes an address reading means (25) for reading the addresses of each of the air conditioning units (A1) to (B16), a determining means (26) for determining when a specific operation mode is selected, and the determining means (26) for determining when a specific operation mode is selected. ), the air conditioning unit (A1) corresponding to the specified address is selected.
An air conditioner characterized by comprising: address confirmation means (27'') for controlling the operation of the built-in equipment (FM) of (B16). (4) The built-in device (FM) of the address confirmation means (27) is a blower fan of a heat exchanger, claim (1) or claim (
3) The air conditioner described above. (5) The air conditioner according to claim (1) or claim (3), wherein the built-in device of the address confirmation means (27) is a buzzer. (6) The air conditioner according to claim (1) or claim (3), wherein the built-in device of the address confirmation means (27) is a blower fan of a heat exchanger and a buzzer. (7) In the air conditioner according to claim (1), instead of the address confirmation means (27), when the special operation mode determined by the determination means (26) is selected, the address reading means (25) reads the address. Each air conditioning unit (A1) to (B1
6) in the address order of each air conditioning unit (A1) to (B1
6) An air conditioner characterized by comprising address confirmation means (17') for sequentially controlling the operation of the air conditioner itself at time intervals that allow confirmation of the start order of the operation. (8) In the air conditioner according to claim (3), when the special operation mode determined by the determination means (26) is selected instead of the address confirmation means (27''), the air conditioner corresponds to the specified address. An air conditioner characterized by comprising address confirmation means (17''') for controlling the operation of the units (A1) to (B16) themselves. (9) Equipped with multiple systems of multi-type air conditioners (X, Y) consisting of multiple indoor units (D1 to D4) and (G1 to G4) connected to one outdoor unit (C, F). In the air conditioner, a command means (35) commands a specific operation mode, and when the command means (35) commands the specific operation mode, the outdoor unit (C), (F) separately, (C), system confirmation means (36 ). (10) The command means (35) includes each outdoor unit (C),
(F) The air conditioner according to claim (9), which is provided in the central controller or in the central controller. (11) The air conditioner according to claim (9), wherein the built-in device operated by the system confirmation means (36) is a blower fan of a heat exchanger.