JPH03213935A - Operation controller of air-conditioner - Google Patents

Abstract

PURPOSE:To widen a range of mode setting and to meet the need of a user sufficiently by making a cooling mode and the like settable for a plurality of subordinate control units when a ventilation mode is set by a main setting means 91. CONSTITUTION:A plurality of air-conditioning units B are controlled by the respective control units 8 and a cooling mode and the like are set for other subordinate control units 8 through one main control unit 8 by a main setting means 91. While each air-conditioning unit 8 executes an operation for ventilation when a ventilation mode is set by this main setting means 91, a cooling or ventilation mode is set for the subordinate control units 8 by a subordinate setting means 91 when a first mode switching means 71 is changed over. When a second mode setting switching means 72 is changed over at the time when the ventilation mode is set by the main setting means 91, an operation before the ventilation mode is set, or the ventilation mode, is set for the subordinate control units by the subordinate setting means 91 and thereby part of them is made to conduct a cooling, heating or ventilation operation. Accordingly, a range of mode setting can be widened.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an operation control device for an air conditioner equipped with a plurality of air conditioning units, and particularly relates to a measure for setting an operation mode.

(Prior Art) Generally, as disclosed in Japanese Patent Application Laid-open No. 59-210249, an operation control device for an air conditioner includes
A plurality of indoor control units that control the indoor units are connected to an outdoor control unit that controls the outdoor units via signal lines, and a remote controller is connected to the indoor control unit, while a central controller is connected to the outdoor control unit. There are things that are connected and configured.

The outdoor control unit exchanges various control signals such as operation signals and mode signals with each indoor control unit, and the outdoor control unit exchanges control signals with the central controller. It controls the air conditioning operation by controlling the air conditioner and various electric expansion valves.

(Problems to be Solved by the Invention) In the operation control device for the air conditioner described above, the central controller is provided with an operation mode switch, and the operation mode is set all at once by the central controller.

However, this has the problem that once the ventilation mode is set according to a request from one indoor unit, it is only possible to respond to the requests from other indoor units. In other words, in other indoor units, only the ventilation operation is performed even though it is desired to perform the cooling operation. In particular, there has been a problem in that even though there is cooling capacity, the cooling operation is not performed and the capacity is not fully utilized. Furthermore, the range of mode selection for each indoor unit is narrow, and there is a problem in that the user's needs cannot be fully met.

The present invention has been made in view of the above, and aims to expand the range of mode selection so that driving ability can be fully demonstrated, and to fully meet the needs of the user. That is.

(Means for Solving the Problems) In order to achieve the above object, the means taken by the present invention is to enable setting of cooling mode, etc. for the sub-control unit instead of setting the ventilation mode of the main setting means. It is something.

Specifically, as shown in FIG. 1, the measures taken by the invention according to claim (1) are, first, a plurality of air conditioning units (B) that are provided with heat exchangers and perform air conditioning operation.

(B), ... and the air conditioning unit (B), (B)
.

A control unit (8) that controls the air conditioning operation of...

(8), . . . is assumed to be an operation control device for an air conditioner.

The air conditioning unit (B) is controlled via one main control unit (8) and the main control unit (8) so that the air conditioning unit (B) is at least in either a cooling mode for cooling operation or a blowing mode for blowing air. Other sub-control units (8), (8).

A main setting means (91) is provided for collectively setting the operation mode for... Furthermore, sub-setting means (91) for setting the operation mode for the sub-control units (8), (8), . . . is provided.

In addition, first mode setting switching means (71) is provided for switching the mode setting so that when the main setting means (91) sets the air blowing mode, the sub setting means (91) sets the operation mode instead of the air blowing mode setting. The structure is as follows.

Further, in the operation control device for an air conditioner according to claim (1), when the main setting means (91) sets the air blowing mode, the sub setting means (91) replaces the air blowing mode setting.
The second mode setting switching means (72) switches the mode setting to either the operating mode before the setting of the ventilation mode of the main setting means (91) or the ventilation mode by the first mode setting switching means (71). The first mode setting switching means (71) is provided instead of or together with the first mode setting switching means (71).

(Function) With the above configuration, in the invention according to claim (1), each air conditioning unit (B), (B), ... is a control unit).
The air conditioning operation is controlled by (8), (8), . and each of the control units (8).

(8), . . ., the main setting means (91) collectively sets the operation mode of each air conditioning unit (B), (B), . . .
91) to other sub-control units (8), (8) via one main control unit (8).

Cooling mode etc. are set in ....

When the air blowing mode is set by this main setting means (91), each air conditioning unit (B), (B)... will perform air blowing operation, but the first mode setting switching means (71) is switched. Then, the sub-setting means (91) sets the cooling mode or the ventilation mode for the sub-control units (8), (8)..., and some of the air conditioning units (
B) is operated for cooling or blowing air.

Further, in the invention according to claims (2 and 3), when the second mode setting switching means (72) is switched when the main setting means (91) is setting the air blowing mode, the sub setting means (91) causes the sub control unit ( 8).

(8) Set the operation mode or ventilation mode before setting the ventilation mode to . . . and cause some of the air conditioning units (B) to perform cooling, heating, or ventilation operation.

(Effect of the invention) Therefore, according to the inventions of claims (1) and (21),
Since the cooling mode etc. can be set for the sub control units (8), (8), etc. when setting the ventilation mode by the main setting means (91), some air conditioning units (B), (B ), ... can perform operations such as cooling, so the air conditioning unit) (B),
(B) It is possible to fully demonstrate the driving ability according to the requirements of... Furthermore, since the range of mode settings can be expanded, user needs can be fully met.

According to the invention according to claim (3), the main setting means (
Since the operation mode can be set to either the operation mode before setting the operation mode according to 91) or an arbitrary operation mode, the range of mode settings can be further expanded, and a wider range of response can be achieved to meet user needs. It can be carried out.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

As shown in Figure 2, (X) is one outdoor unit (A
) with multiple indoor units (5 in the drawing) (B
), (B), . . . are connected in parallel.

The outdoor unit (A) includes a compressor (1) and two outdoor heat exchangers (2a) and (2b), and the compressor (1) is a first compressor whose capacity is controlled by an inverter. machine (1
a) and a second compressor (1) whose capacity is controlled by an unloading mechanism.
b), the discharge side of the first compressor (1a) is connected to an oil separator (1d), and the discharge side of the second compressor (1b) is connected to a one-way valve (IC) and an oil separator ( 1e) to a high pressure gas line (31) of the refrigerant circuit (3), and the suction side to a low pressure gas line (32).

Furthermore, the return pipes (of the oil separators (ld), (le))
If) and (Ig) are connected to the suction side of the compressor (1), and an oil equalizing pipe (1h) is provided between the positive compressors (la) and (lb). Further, each of the outdoor heat exchangers (2a) and (2b) is provided in parallel with the compressor (1), and each of the outdoor heat exchangers (2a) and (2b) is provided in parallel with the compressor (1).
One end of (2b) is a four-way switching valve (21a),
Gas pipes (22a) with (21b), (22b)
are switchably connected to the high pressure gas line (31) and the low pressure gas line (32) via a refrigerant circuit (3) at the other end of each outdoor heat exchanger (2a), (2b). The liquid pipes (33a) and (33b) of the liquid line (33) are connected. And each of the above four-way switching valves (21g)
, (21b) are each outdoor heat exchanger (2a), (2b
) functions as a condenser, the solid line in the figure changes and the gas pipes (22a) and (22b) are connected to the high pressure gas line (3
1), and conversely, each outdoor heat exchanger (2a), (
When 2b) functions as an evaporator, the broken line in the figure changes so that the gas pipes (22a) and (22b) communicate with the low pressure gas line (32). Further, one boat of the four-way switching valve (21a), (21b) is connected to the four-way switching valve (21g) via a connecting pipe (24a), (24b) equipped with a capillary (23a), (23b). , (21b) and low pressure gas line (32)
It is connected to gas pipes (22a) and (22b) between the two.

Furthermore, a gas pipe (22a) is connected to the high pressure gas line (31).
), one-way valve (4) downstream from the connection part of (22b).
), but the low pressure gas line (32) has a gas pipe (22a),
There is an accumulator (
41) respectively, and both gas lines (3
A pressure equalizing bypass path (42) is connected between 1) and (32). The pressure equalization bypass path (42) is provided with an on-off valve (42a) and a flow rate adjustment capillary (42b), and one end is connected to the connection part of the gas pipes (22a) and (22b) in the high-pressure gas line (31) for compression. The other end is connected between the gas pipes (22a) and (22b) in the low pressure gas line (32) and the accumulator (4).
1).

In addition, each liquid pipe (33a) in the liquid line (33)
, (33b) are connected to the receiver (43) and the liquid refrigerant is combined therewith, and the liquid line (33b) is connected to the receiver (43).
) is connected to the main liquid pipe (33c). Furthermore, each of the liquid pipes (33a).

(33b) is an outdoor electric expansion valve (25a), (25
b) is interposed, the outdoor electric expansion valve (25a),
(25b) is an outdoor heat exchanger (2a).

(2b) reduces the pressure of the liquid refrigerant when it functions as an evaporator,
It is configured to adjust the flow rate of liquid refrigerant when functioning as a condenser.

In addition, (26) is the outdoor heat exchanger (2a), (2b)
(44) is an inlet heat exchanger formed between the low pressure gas line (32) and the main liquid pipe (33c).

Moreover, the − direction valve (
4), one end of a hot gas bypass line (45) is connected to the downstream side of the hot gas bypass line (45).
The other end is connected to the receiver (43), and a hot gas on-off valve (45a) and a capillary (45b) for adjusting the flow rate of hot gas are interposed. The hot gas on-off valve (45a) opens and transfers the hot gas to the receiver (43) when the outside air temperature falls below a predetermined temperature during cooling operation of the indoor unit CB).
) to maintain the liquid line (33) at a predetermined pressure.

On the other hand, the high-pressure gas line (31), low-pressure gas line (32), and main liquid pipe (33) are arranged to extend toward the indoor side, and the flow dividers (31a), (32a), and (
high pressure branch pipe (31b), (31b
),..., low pressure branch pipe (32b), (32b), -...
- and liquid branch pipe (33e).

(33e), ..., each branch pipe (31b)
(32b) and (33e) are each indoor unit (B) (
B) is connected to...

Each of the indoor units (B), (B), . . . includes an indoor heat exchanger (5) and an indoor electric expansion valve (51). and the indoor unit (B),
(B), ... are configured to be switchable between cooling operation and heating operation, and three indoor units (B), (B
), . . . are configured to have the same operation mode, and have three sections (Di).

(D2) and (D3), with one indoor unit (B) in the first and second sections (DI) and (D2).
), and three indoor units (B) are provided in parallel in the third section (D3). 1st and 2nd
A liquid branch pipe (33e) is connected to one end of the indoor unit (B) in sections (DI) and (D2) via an indoor electric expansion valve (51), and a low pressure pipe is connected to the other end via a gas pipe (5a). A branch pipe (32b) and a high pressure branch pipe (3l b) are connected, and an indoor electric expansion valve (51) and a liquid pipe (5b) are connected to one end of the indoor unit (B) in the third section (D3).
) and a flow divider (58a), a liquid branch pipe (33e) is connected to the other end, and a low pressure branch pipe (32b) and a high pressure branch pipe (31b) are connected to the other end through a gas pipe (5a) and a flow divider (58b). is connected. An on-off valve (52) is provided at each end of the high-pressure branch pipe (3l b) and the low-pressure branch pipe (32b).
(5B) is interposed, and both on-off valves (52), (53)
The indoor heat exchanger (5) is configured to be switched and connected to the high pressure gas line (31) and the low pressure gas line (32) by controlling opening and closing, and the indoor heat exchanger (5) is connected to the evaporator. When functioning as a condenser (during cooling), the low-pressure side on-off valve (53) operates as a condenser (during heating), the high-pressure side on-off valve (52) functions as a condenser (during heating).
) are designed to open and move respectively.

Further, a low pressure bypass path (54) is connected to the liquid branch pipe (33e) on the indoor unit (B), (B), . . . side, and the low pressure bypass path (54) is connected to the low pressure branch pipe (32
b) is connected to the downstream side of the on-off valve (53), a bypass valve (54a) and a capillary (54b) are interposed, and a piping heat exchanger (
54c) is formed and is configured to prevent flash of liquid refrigerant flowing out from the indoor heat exchanger (5) during heating. Further, a high pressure bypass path (55) is connected to the upstream side of the on-off valve (52) in the high pressure branch pipe (31b), and the high pressure bypass path (55) is connected to the gas pipe (5a).
) and a capillary (55) for flow rate adjustment.
a), and is configured to bypass condensate that accumulates in the high-pressure branch pipe (3l b) etc. during cooling.

The on-off valves (52), (53) and the bypass paths (54), (55) are integrally housed in the kit to form a branch unit (56), while the compressor (1) , outdoor heat exchangers (2a), (2b), indoor heat exchangers (5), (5), ... are connected to a high pressure gas line (31), a low pressure gas line (32) and a liquid line (
33) to constitute the refrigerant circuit (3).

Note that (57) is an indoor fan placed close to the indoor heat exchanger (5).

In the refrigerant circuit (3) described above, each indoor unit (B
), (B), .

(2l b) to the solid line in Figure 2 and connect the gas pipe (22a)
, (22b) are connected to the high pressure gas line (31), while the indoor units (B), (B).

closes the high-pressure side on-off valve (52), and closes the low-pressure side on-off valve (53).
is opened to connect the gas pipe (5a) to the low pressure branch pipe (32b). In this state, the high-pressure gas refrigerant discharged from the compressor (1) flows to each outdoor heat exchanger (2a), (2b) and condenses, and this condensed liquid refrigerant flows through the liquid line (33).
After flowing through the indoor units (B), (B), ... and expanded by the indoor electric expansion valves (51), (51), ..., the indoor heat exchangers (5), (5),...
・It evaporates in
This brings us back to 1).

On the other hand, when heating the indoor units (B), (B), . . . Switch to the broken line in Figure 2 and open the high pressure side on-off valve (52).
The low-pressure side on-off valve (53) is closed, and the refrigerant is condensed from the high-pressure gas line (31) in the indoor heat exchanger (5), flows through the liquid line (33), and passes through the outdoor electric expansion valves (25a) and (25b).
), evaporated in the outdoor heat exchangers (2a) and (2b), and returned to the compressor (1).

During the cooling operation, for example, the double opening/closing valve (52) in one indoor unit (B).

(53) for heating operation, or conversely, during the above-mentioned heating operation, for example, by switching both on-off valves (52) and (53) in one indoor unit (B) for cooling operation, so-called simultaneous cooling and heating. Driving takes place. At that time, the liquid refrigerant flowing out from the indoor unit (B) in the heating mode joins at the flow divider (33d) of the liquid line (33), flows into the indoor unit (B) in the cooling mode, evaporates, and goes into the low-pressure gas line. (32) returns to the compressor (1).

During this simultaneous heating and cooling operation, two outdoor heat exchangers (
2a) and (2b) operate as an evaporator or a condenser depending on the indoor load, and furthermore, one unit is operated and the other unit is stopped.

Furthermore, various sensors are installed in the refrigerant circuit (3), where (Thl) is a liquid temperature sensor that detects the liquid refrigerant temperature of the indoor unit (B), and (Th2) is a liquid temperature sensor that detects the temperature of the liquid refrigerant of the indoor unit (B).
gas temperature sensor that detects the gas refrigerant temperature (T h3)
is a room temperature sensor that detects the intake air temperature of the indoor fan (57), and (T h4) is the outdoor heat exchanger (2a), (2b).
) side liquid temperature sensor that detects the liquid refrigerant temperature (T h5)
are gas temperature sensors that detect the discharge gas refrigerant temperature on the outdoor side heat exchanger (2a) and (2b) side;
h7) is a discharge gas temperature sensor that detects the discharge gas refrigerant temperature of the compressor (1), (HPS) is a high pressure sensor that detects the discharge gas refrigerant pressure of the compressor (1), and (LPS) is a compressor (1) This is a low pressure sensor that detects the suction gas refrigerant pressure.

Next, FIG. 3 is a system configuration diagram showing the control system of the air conditioner (X), in which an outdoor control unit controls the outdoor unit (A) by controlling the capacity of the compressor (1), etc. (6), and branch units (56), (56), which control the opening and closing of the on-off valves (52) and (53).
Branch control unit (7), (7), which controls...
..., and indoor control units (8), (8), etc. that control the indoor units (B), (B), ... by controlling the opening degree of the indoor electric expansion valve (51), etc. - and are connected via a signal line (10). The branch control unit (7) and the outdoor control unit (6) constitute an external control unit. In addition, each control unit (6), (7), (8) has three layers (C1) (
C2), (C3), the outdoor control unit (6) is on the first floor (C1), the branch control unit (7), (7), ... is on the second floor (C2), and the third floor is divided into hierarchy(
C3) has five indoor control units (8) (8),...
It is classified according to the category to which it belongs. Furthermore, the above third layer (
C3) indoor control unit (8), (8),...
has three sections (DI).

An indoor unit (B) that is divided into (D2) and (D3) and connected to the branch unit (56).

Corresponding to (B), ..., the first and second sections (DI) and (D2) are equipped with an indoor control unit (8
), (8), but the third section (D3) is configured such that three indoor control units (8), (8), . . . belong thereto.

In addition, the branch control unit (7) of the m2 layer (C2)
, (7) ",... is the outdoor control unit (6),
Each section (Dl) in the third layer (C3),
(D2), . . . indoor control unit (8).

(8), . . . are respectively connected to each branch control unit (7). Then, each of the above layers (C1) to (C3
), each control unit (6) to (8) is connected to an independent transmission circuit (E), (E),...
・is formed.

In each of the transmission circuits (E), (E), ..., between the first layer (C1) and the second layer (C2), the outdoor control unit (6) is the primary station, and the branch control unit (6) is the primary station. (7),
(7) is set as the secondary station, and branch control units (7), (7) are set between the second layer (C2) and the third layer (C3).
is the primary station, and the indoor control unit (8), (8),
... is set as the secondary station, and each transmission circuit (E), (E
), ... and the branch control unit (7) transmits and receives control signals for each of the outdoor and indoor control units (6),
(8) is configured to perform data transfer between the two. And each of the indoor control units (8), (8),...
is configured on the terminal, and the remote control (9), (9),
...is connected. The remote control (9), (9),
... are the indoor control units (8), (8), ...
The controller is configured to control each of the controllers, and is configured to input operation signals such as driving signals.

Furthermore, each of the remote controllers (9) has an operation switching button (91).
) is provided, and the operation switching button (91) allows the indoor control unit (8), (8), etc. to switch between a cooling mode in which the indoor unit (B) performs a cooling operation, and a heating mode in which a heating operation is performed. The system is configured to set one of the following operating modes: a blowing mode for blowing air, and an automatic mode for automatically switching between a cooling operation and a heating operation.

Moreover, each branch control unit (7), (7) mentioned above.

Indoor control unit (8), (8
).

In the remote controllers (9), (9), ..., one remote controller (in the third section (D3))
The operation switching button (91) of 9) constitutes the main setting means for the operation mode. In other words, since cooling operation and heating operation are switched by the branch unit (56), one branch control unit (7) uses one remote controller (
9) so that the operation mode can be set, and the remote controllers (9), (9) of the third section (D3)
, . . . are configured so that the operation mode can be set only with the operation switching button (91) of one remote controller (9).

Furthermore, the main setting means in the remote controllers (9), (9), . If pressed continuously for a second, the main setting means is released, and the operation changeover button (91) of the remote control (9), which is then pressed, becomes the main setting means.

The main indoor control unit is an indoor control unit (8) to which a remote control (9) equipped with an operation switching button (91) serving as the main setting means is connected. Further, the indoor control units (8), (8), . Branch control unit (7
) to the sub-indoor control units (8), (8), ... connected to the branch control unit (7), and the operation mode is set collectively. It is configured to Further, the operation switching button (91) of the remote control (9) connected to the sub-indoor control units (8), (8), . . . is configured as a sub-setting means for the operation mode.

On the other hand, the branch control unit (7) connected to the indoor control unit (8), (8), . A first jumper (71) is provided, and a second jumper (72) is provided as a second mode setting means. When the first jumper (71) is set to oven (cut), the first jumper (71) is set to the sub-setting means in place of the air blowing mode setting when the air blowing mode is set by the operation switching button (91) of the main setting means. Each sub-indoor control unit (8) can be set to cooling mode or ventilation mode using an operation switching button (91). Also,
The second jumper (72) is the second jumper (72).
When set to oven (cut), it becomes the operation switching button (91) of the main setting means.When setting the ventilation mode, the operation switching button (91) of the sub-setting means is used instead of the ventilation mode setting.
) so that the operating mode before setting the ventilation mode, that is, the cooling mode, the heating mode, and the ventilation mode can be set.

Next, to explain the operation control operation of the air conditioner (X), control signals are exchanged between the outdoor control unit (6) and the branch control units (7), (7), . . . Each branch control unit (7), (7),
...and each section (DI).

Indoor control unit (8) of (D2) and (D3).

(8), ... while transmitting and receiving control signals between the branch control unit (7) and the outdoor and indoor control unit (6).
, (8). The outdoor control unit (6) controls the capacity of the compressor (1) and the opening degrees of the outdoor electric expansion valves (25a) and (25b), and the branch control unit (7) controls cooling operation and heating operation. The on-off valves (52) and (53) are controlled to open and close so as to switch, and the indoor control unit (8) also controls the opening degree of the indoor electric expansion valve (51).

On the other hand, the remote control (a) inputs operation signals such as operation signals and set temperature signals for the indoor unit (B) to each indoor control unit (8), and performs various controls as described above based on the operation signals. Units (6), (7), (8)
controls the air conditioning operation.

As a feature of the present invention, the third section (D3
) on both jumpers (71) of the branch control unit (7)
), (72) are closed (non-disconnected),
Indoor control unit in the third section (D3) (
8), (8), . . ., the operation mode is set all at once by the operation switching button (91) of the main setting means. That is, the indoor units (B), (B), . . . in the third section (D3) are collectively set to the cooling mode, heating mode, or ventilation mode.

On the other hand, if the first jumper (71) is turned into an oven,
When the operation switching button (91) of the main setting means is set to the ventilation mode, the main indoor control unit (8) is set to the ventilation mode, but the sub indoor control unit (8)
, (8), ... are the sub-indoor control units (8), (
8), remote control connected to (9), (9),...
Operation switching button (91), (91),...
This means that you can easily set it to cooling mode or ventilation mode.

Furthermore, when the second jumper (72) is set to the oven and the operation switching button (91) of the main setting means is set to the ventilation mode, the main indoor control unit (8) is set to the ventilation mode, but the sub-indoor control unit ( 8), (8)
,... are the sub-indoor control units (8), (8)
,... remote control connected to (9), (9),...
The operation switching buttons (91), (91), etc. switch between the operation mode before setting the ventilation mode and the ventilation mode, that is, if the cooling mode was set before the ventilation mode was set, the mode changes between the cooling mode and the ventilation mode. If the heating mode is set before setting the ventilation mode, the heating mode and the ventilation mode can be set.

The states of each of the jumpers (71) and (72) are read when the power is turned on.

Therefore, the operation switching button (91) of the main setting means
sub control unit (8) when setting the ventilation mode by
(8) Because it is possible to set the cooling mode etc. for (8),..., some air conditioning units (B), (
Since the air conditioning units (B), (B), etc. can perform operations such as cooling, the air conditioning units (B), (B), etc. can fully demonstrate their operating capabilities in accordance with the demands. Furthermore,
Since the range of mode settings can be expanded, it is possible to fully meet user needs.

Also, the sub-control units (8), (8).

For ..., press the operation switch button (91) of the main setting means.
) can be set to either the operating mode before setting the ventilation mode or any other operating mode, so the range of mode settings can be further expanded and a wider range of response can be achieved to meet user needs. be able to.

In this embodiment, each mode setting switching means is constituted by jumpers (71) and (72), but it may also be a changeover switch or the like.

Moreover, the present invention may not grow the branching unit (56) and the branching control unit (7), in which case,
Both mode setting switching means may be provided in the outdoor control unit.

Further, the operation mode of the indoor unit (B) does not need to be automatic mode, and it is sufficient if it can be set to at least cooling mode and ventilation mode.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention. 2 and 3 show an embodiment of the present invention, FIG. 2 is a refrigerant circuit diagram of an air conditioner, and FIG. 3 is a system configuration diagram of the control system. (6)...Outdoor control unit (7)...Branch control unit (8)...Indoor control unit (71)...First jumper (72)...Second jumper (91)...・Operation switch button (A)...Outdoor unit (B)...Indoor unit and 2 other people

Claims (3)

[Claims] (1) A plurality of air conditioning units (B), (B), ... equipped with heat exchangers and performing air conditioning operation, and the air conditioning units (
B), (B), . . . The air conditioning unit (B) has at least One main control unit (8) and another sub-control unit (8) via the main control unit (8) so as to be in either a cooling mode for cooling operation or a blower mode for blowing air.
), (8), . . . , a main setting means (91) for collectively setting the operation mode for the above-mentioned sub-control units (8), (8), . . . and a first mode setting switch for switching the mode setting so that when the main setting means (91) sets the air blowing mode, the sub setting means (91) sets the operation mode instead of the air blowing mode setting. An operation control device for an air conditioner, comprising: means (71). (2) In place of the first mode setting switching means (71) in the operation control device for an air conditioner according to claim (1), when setting the air blowing mode of the main setting means (91), a sub setting is made in place of the air blowing mode setting. It is characterized by comprising a second mode setting switching means (72) for switching the mode setting so that the means (91) sets the mode setting to either the operating mode before the ventilation mode setting of the main setting means (91) or the ventilation mode. Operation control device for air conditioning equipment. (3) In the operation control device for an air conditioner according to claim (1), when the main setting means (91) sets the air blowing mode, the sub setting means (91) sets the main setting means (91) instead of setting the air blowing mode. An operation control device for an air conditioner, comprising a second mode setting switching means (72) for switching the mode setting so as to set the mode setting to either the operating mode before the air blowing setting or the air blowing mode.