JP2715780B2 - Separable air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation type air conditioner comprising an indoor unit and an outdoor unit, and is particularly characterized in emergency operation.

[0002]

2. Description of the Related Art As a configuration of a conventional separation type air conditioner, which is particularly characterized in emergency operation, there is, for example, a configuration disclosed in JP-A-2-40439. FIG. 16 is a block diagram of a separation type air conditioner disclosed in the publication.

In FIG. 16, 15 is an outdoor unit, 16 is an indoor unit, 17 is an outdoor unit microcomputer, 18 is a compressor relay, 19 is a relay for an outdoor unit fan, 20, 21 are drivers, 22 is an emergency switch, 23 Is an outdoor transmission circuit, 24 is an indoor unit microcomputer, 25 is an indoor transmission circuit, 26 is room temperature setting means, 27 is room temperature detection means,
8 is an indoor unit fan relay, 29 is an electric expansion valve as a pressure reducing valve, 30 and 31 are drivers, 32 is a transmission abnormality detecting means, and 33 is an indoor emergency operating means.

Next, the operation will be described. When the outdoor unit microcomputer 17 of the outdoor unit 15 is out of order, the emergency switch 22 forcibly turns on the compressor relay 18 and the outdoor unit fan relay 19 to perform the emergency operation of the outdoor unit 15.

When a transmission signal is not transmitted to the indoor unit microcomputer 24, the transmission abnormality is detected by the transmission abnormality detecting means 32 and a signal is output to the indoor unit microcomputer 24. , The electric expansion valve 29 is set to the specified opening degree, and the indoor unit fan relay 28 is turned on to set the indoor unit 1
Perform emergency operation 6

[0006]

The emergency operation of the conventional separation type air conditioner is performed by the compressor relay 18 of the outdoor unit 15,
Since the outdoor unit fan relay 19 is forcibly switched on by the emergency switch 22, the operation is continuous, and the temperature control by the room temperature and the set temperature cannot be performed during the emergency operation.

Further, since the compressor relay 18 and the outdoor unit fan relay 19 are forcibly switched by the emergency switch 22,
A forced switch is required, and the switching of the emergency operation is performed by a service person or the like, and the emergency operation cannot be started automatically or easily by the user.

Further, if the signal transmission means between the outdoor unit 15 and the indoor unit 16 fails, the indoor unit 16 automatically operates, and the outdoor unit 15 does not automatically operate the outdoor unit. There was a problem that the overall operation was unmatched.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art. Even if a signal transmission means between an indoor unit and an outdoor unit fails, an emergency operation capable of controlling the temperature can be performed. It is an object of the present invention to provide a separation type air conditioner that can be started automatically or easily by the user himself.

[0010]

SUMMARY OF THE INVENTION Therefore, a separation type air conditioner according to the present invention has an indoor unit control unit provided in an indoor unit for controlling the operation of the indoor unit and transmitting a control signal to the outdoor unit control unit. , An outdoor unit control unit provided in the outdoor unit that performs operation control of the outdoor unit, for mutually transmitting and receiving command contents such as a compressor operation command from the indoor unit to the outdoor unit and an operation state of the indoor unit or the outdoor unit. Signal transmission means, outdoor unit power supply means for turning on / off power supply from the indoor unit to the outdoor unit, indoor unit side signal transmission failure determination means for detecting failure of the signal transmission means, and outdoor unit side signal transmission failure determination means In the separation type air conditioner provided with the above, when the indoor unit side signal transmission failure determination unit detects a failure of the signal transmission unit, the indoor unit control unit switches to an emergency control for performing temperature adjustment by the outdoor unit power supply unit. Alternatively, when the outdoor unit side signal transmission failure determination unit detects a failure of the signal transmission unit, the outdoor unit control unit switches to emergency operation in a predetermined outdoor unit emergency control mode and performs operation control. It is intended to achieve the above object.

[0011] Further, the separated air provided with the indoor unit control unit, the outdoor unit control unit, the signal transmission unit, the outdoor unit power supply unit, the indoor unit side signal transmission failure determination unit, and the outdoor unit side signal transmission failure determination unit. In the harmony unit, when a failure of the signal transmission unit is detected by the indoor unit side signal transmission failure determination unit, the indoor unit control unit activates an emergency operation provided in the indoor unit by the outdoor unit power supply unit by the emergency operation start unit. The control is switched to the emergency control for adjusting the temperature, and when the failure of the signal transmission means is detected by the outdoor unit side signal transmission failure determination means, the outdoor unit control unit switches to the emergency operation in the predetermined outdoor unit emergency control mode and performs the operation control. It is an object of the present invention to achieve the above object by a configuration characterized by the following.

Further, in the above configuration, a cooling / heating operation switching means is provided in the outdoor unit, or an outdoor air temperature sensor is provided in the outdoor unit, and the cooling / heating operation switching of the outdoor unit at the time of emergency operation is performed. The above object is achieved by a configuration.

[0013]

With the above configuration, in the separation type air conditioner according to the present invention, when the signal transmission means between the indoor unit and the outdoor unit fails, the indoor unit control unit turns on / off the power supply to the outdoor unit. When the temperature control is performed by switching to the emergency control for performing the temperature control by the outdoor unit power supply means, and by controlling the outdoor unit control unit to switch to the predetermined outdoor unit emergency control,
The compressor is operated under the determined operating conditions of the outdoor unit, and when the temperature control is stopped, the power supply to the outdoor unit is cut off and the compressor stops. Therefore, even when the signal transmission means is out of order, it is possible to perform an emergency operation capable of controlling the temperature.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a separation type air conditioner according to the present invention will be described with reference to embodiments. (First Embodiment) FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention. In the figure, A is the indoor unit, B is the outdoor unit, 1 is the operation control of the indoor unit A and the outdoor unit control unit 6.
Indoor unit control unit for transmitting control signals to the indoor unit, 2 is a room temperature sensor for detecting room temperature for performing temperature control, 3 is an indoor unit fan, 4 is an outdoor unit for turning on / off power supply to the outdoor unit. It is a power supply means and generally comprises a relay. Reference numeral 5 denotes an indoor unit signal transmission failure determination unit for detecting a failure of the signal transmission unit 11 described later, 6 an outdoor unit control unit for controlling the operation of the outdoor unit B, 7 an inverter circuit, 8 a compressor, and 9 an outdoor unit. The unit fan 10 is an outdoor unit side signal transmission failure determination unit, and 11 is a signal transmission unit. Instruction contents such as a compressor operation instruction from the indoor unit A to the outdoor unit B, and an operation state of the indoor unit A or the outdoor unit B, etc. Are mutually transmitted and received.

The operation of the first embodiment will now be described with reference to FIGS.
This will be described with reference to FIGS. 7 to 1
2 is a flowchart showing the control operation contents of the embodiment of the present invention, FIG. 7 is an indoor unit operation control, FIG. 8 is an outdoor unit operation control, FIG. 9 is an indoor unit normal control, FIG.
FIG. 11 is a flowchart of the indoor unit emergency control, and FIG. 12 is a flowchart of the outdoor unit emergency control.

When the signal transmission means 11 is normal, the indoor unit control section 1 executes the processing from step S100 to step S10 in FIG.
Proceeding to 1, the normal operation of the indoor unit shown in FIG. 9 is performed. The outdoor unit control unit 6 performs steps S103 to S10 in FIG.
The routine proceeds to step 4, where the outdoor unit normal control shown in FIG. 10 is performed.

That is, power is supplied to the outdoor unit B by the outdoor unit power supply means 4, and in S 106, the temperature is controlled by the difference between the room temperature data from the room temperature sensor 2 and the set temperature.
A signal for operating or stopping the compressor is transmitted to the outdoor unit controller 6 by the signal transmission unit 11 (steps S108 and S108).
109). The outdoor unit control unit 6 controls the inverter circuit 7 based on this signal to operate or stop the compressor (steps S110, S111, S112).

When the signal transmission means 11 is out of order, the indoor unit control section 1 executes steps S100 to S10 in FIG.
Proceed to 2 to perform the indoor unit emergency control shown in FIG. The outdoor unit control unit 6 performs steps S1 to S1 in FIG.
In step 05, the emergency control of the outdoor unit shown in FIG. 12 is performed.

That is, when the failure of the signal transmission unit 11 is detected by the indoor unit side signal transmission failure determination unit 5, the process proceeds to S102, and the indoor unit control unit 1 compares the set temperature with the room temperature (S1).
13) Then, as temperature control, when the temperature control is performed, the outdoor unit power supply means 4 is turned on to supply power to the outdoor unit (S114,
Then, when the temperature control is stopped, the outdoor unit power supply means 4 is turned off (S114, S116).

When the outdoor unit B detects a failure in the signal transmission unit 11 by the outdoor unit side signal transmission failure determination unit 10, the process proceeds to step S.
Proceeding to 105, a preset emergency operation mode is executed (FIG. 12). As an example of the emergency operation mode, the cooling / heating operation mode is an operation in which “cooling” is fixed (S117), the compressor inverter operation frequency is constant (S118), and the outdoor unit fan speed is constant (S119). Generally, since there is no means for cooling in other devices, it is effective to control with "cooling" priority.

With the above configuration and control, the signal transmission means 1
In case of failure, the outdoor unit controller 6 controls the power supply to the outdoor unit by turning on / off the outdoor unit by the indoor unit emergency control. Emergency operation of the outdoor unit is possible.

(Second Embodiment) FIG. 2 is a block diagram showing a configuration of a second embodiment of the present invention. Portions that are the same as or correspond to those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

The second embodiment differs from the first embodiment in the configuration of the first embodiment.
An emergency operation starting means 12 for starting an emergency operation is added to the indoor unit A.

The operation of the second embodiment will now be described with reference to FIGS.
This will be described with reference to FIGS. 7 to 10, FIG. 12, and FIG. FIG. 13 is a flowchart of the indoor unit emergency control instead of FIG.

In normal control where the signal transmission means 11 is normal, step S101 in FIG. 7 and step S104 in FIG.
Accordingly, the same control as in the first embodiment shown in FIGS. 9 and 10 is performed. That is, power is supplied to the outdoor unit by the outdoor unit power supply means 4, and the temperature is controlled by the indoor unit control unit 1 based on the difference between the room temperature data from the room temperature sensor 2 and the set temperature, as in the first embodiment. A signal for operating or stopping the compressor is transmitted to the outdoor unit control unit 6 by the signal transmission unit 11 (see FIG. 9), and the outdoor unit control unit 6 controls the inverter circuit 7 by this signal to operate the compressor. And stop (see FIG. 10).

If the signal transmission means 11 has failed, the process proceeds from step S100 to S102, and from step S103 to S102.
Proceeding to 105, the control shown in FIGS. 13 and 12 is performed.

That is, a failure is detected by the indoor unit side signal transmission failure determination unit 5, and the indoor unit control unit 1 waits for an input from the emergency operation start unit 12 (step S12 in FIG. 13).
0). When the emergency operation start unit 12 is turned on, the set temperature is compared with the room temperature (S122) to perform temperature control. When the temperature control is performed, the outdoor unit power supply unit 4 is turned on and power is supplied to the outdoor unit B. When the adjustment is stopped, the outdoor unit power supply means 4 is turned off (steps S124 and S125 in FIG. 13).

The outdoor unit B determines a failure by the outdoor unit-side signal transmission failure determination means 10 and executes a preset emergency operation mode. Examples of this emergency operation mode include:
As shown in FIG. 12, the cooling / heating operation mode is “cooling”.
The operation is fixed (S117), the compressor inverter operating frequency is constant (S118), and the outdoor unit fan speed is constant (S119). Generally, since there is no means for cooling in other devices, it is effective to control with "cooling" priority.

With the above configuration and control, the signal transmission means 1
When 1 is out of order, by turning on the emergency operation start-up means 12 provided in the indoor unit A, the indoor unit emergency control by the indoor unit control unit 1 controls the power on / off of the outdoor unit,
The outdoor unit emergency operation in the preset emergency operation mode can be performed by the outdoor unit emergency control by the outdoor unit controller 6.

(Third Embodiment) FIG. 3 is a block diagram showing a configuration of a third embodiment of the present invention. Portions that are the same as or correspond to those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

The third embodiment is different from the first embodiment in that:
A cooling / heating operation switching means 13 for defining a cooling / heating operation mode of the outdoor unit B when the emergency operation is performed is added to the outdoor unit B. The cooling / heating operation switching means 13 is constituted by a switch or the like.

The operation control of the third embodiment is performed according to the outdoor unit emergency control flowchart shown in FIGS. 7 to 11 and FIG. 14 instead of FIG. The configuration is executed by the outdoor unit control unit 6.

When the signal transmission means 11 is normal, the same control as that of the first embodiment is executed, and the description thereof will not be repeated.

When the signal transmission means 11 is out of order, the indoor unit control means 1 executes step S1 similarly to the first embodiment.
From 02, the process proceeds to the indoor unit emergency control shown in FIG. 11, and the on / off control operation of the outdoor unit power supply means 4 is executed. Further, the outdoor unit control means 6 proceeds from step S105 to the outdoor unit emergency control shown in FIG.
The cooling operation or the heating operation is executed by judging the state (step S126) (step S127, step S128). Also, the compressor inverter operating frequency,
The operation is performed with the outdoor unit fan speed and the like kept constant (steps S129 and S130).

With the above configuration and control, the signal transmission means 1
When the unit 1 is out of order, the outdoor unit B is controlled by the cooling unit / heating operation switching unit 13 to perform the cooling emergency operation or heating under the power on / off control of the outdoor unit by the indoor unit emergency control of the indoor unit control unit 1. The outdoor unit emergency operation in the emergency operation mode is possible.

(Fourth Embodiment) FIG. 4 is a block diagram showing a configuration of a fourth embodiment of the present invention. Portions that are the same as or correspond to those of the above-described embodiments are denoted by the same reference numerals, and redundant description is omitted.

The fourth embodiment is different from the first embodiment in that:
Emergency operation starting means 12 similar to that provided in the second embodiment for activating the emergency operation is added to the indoor unit A, and the cooling / heating operation mode of the outdoor unit B is specified when the emergency operation is performed.
Cooling / heating operation switching means 1 similar to that provided in the embodiment
3 is added to the outdoor unit B.

The operation control of the fourth embodiment is described in FIGS. 7 to 1 with reference to the description of the first, second, and third embodiments.
0, and are executed by the indoor unit controller 1 and the outdoor unit controller 6 in accordance with the indoor unit emergency control flowchart and the outdoor unit emergency control flowchart shown in FIGS.

When the signal transmission means 11 is normal, the same control as that of the first embodiment is executed, and the description thereof will not be repeated.

When the signal transmission means 11 is out of order, the indoor unit control means 1 executes step S1 as in the second embodiment.
From 02, the operation proceeds to the indoor unit emergency control shown in FIG. 13 to execute the on / off control operation of the outdoor unit power supply means 4. Further, the outdoor unit control means 6 performs step S in the same manner as in the third embodiment.
From 105, the process proceeds to the outdoor unit emergency control shown in FIG. 14, the cooling / heating operation is determined, and the preset emergency operation control is performed.

With the above configuration and control, the signal transmission means 1
When the failure of the outdoor unit 1 occurs, the emergency operation start means 12 provided in the indoor unit A is turned on, so that the outdoor unit is controlled under the power on / off control of the outdoor unit by the indoor unit emergency control of the indoor unit control unit 1. Cooling / heating operation switching means 13 provided in control unit 6
, The outdoor unit emergency operation in the selected cooling emergency operation or heating emergency operation mode is possible.

(Fifth Embodiment) FIG. 5 is a block diagram showing a configuration of a fifth embodiment of the present invention. Portions that are the same as or correspond to those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

The fifth embodiment is different from the first embodiment in that:
The outdoor air temperature sensor 14 is added to the outdoor unit B. The outside air temperature sensor 14 is used to determine the cooling / heating operation mode of the outdoor unit B at the time of emergency operation, and is constituted by an outside air temperature thermistor in this embodiment.

The operation control of the fifth embodiment is based on the outdoor unit emergency control flowchart shown in FIGS. 7 to 11 and FIG. 15 instead of FIG. The configuration is executed by the outdoor unit control unit 6.

When the signal transmission means 11 is normal, the same control as that of the first embodiment is executed, and the description thereof will not be repeated.

When the signal transmission means 11 is out of order, the indoor unit control means 1 executes step S1 similarly to the first embodiment.
From 02, the process proceeds to the indoor unit emergency control shown in FIG. 11, and the on / off control operation of the outdoor unit power supply means 4 is executed. Further, the outdoor unit control means 6 proceeds to the outdoor unit emergency control shown in FIG. 15 from step S105, determines the cooling / heating operation mode based on the output of the outside air temperature sensor 14, and executes the operation (steps S131 and S132). , S133). The compressor inverter operating frequency, the outdoor unit fan speed, and the like are set to be constant (steps S134 and S135).

With the above configuration and control, the signal transmission means 1
When the unit 1 is out of order, the outdoor unit B determines the output of the outside air temperature sensor 14 and operates in the cooling / heating operation mode under the power on / off control of the outdoor unit by the indoor unit emergency control of the indoor unit control unit 1. And the emergency operation of the outdoor unit in the cooling emergency operation mode or the heating emergency operation mode is possible.

(Sixth Embodiment) FIG. 6 is a block diagram showing a configuration of a sixth embodiment of the present invention. Portions that are the same as or correspond to those of the above-described embodiments are denoted by the same reference numerals, and redundant description is omitted.

The sixth embodiment is different from the first embodiment in that
The emergency operation starting means 12 similar to that provided in the second embodiment for activating the emergency operation is added to the indoor unit A, and the outdoor temperature sensor 14 similar to that provided in the fifth embodiment is added to the outdoor unit B. Features. The operation control of the sixth embodiment includes:
The indoor unit controller according to the indoor unit emergency control flowchart and the outdoor unit emergency control flowchart shown in FIGS. 7 to 10 and FIGS. 13 and 15 referred to in the description of the first, second, and fifth embodiments. 1. The configuration is executed by the outdoor unit control unit 6.

When the signal transmission means 11 is normal, the same control as that of the first embodiment is executed, and the description thereof will not be repeated.

When the signal transmission means 11 has failed, the indoor unit control means 1 executes step S1 similarly to the second embodiment.
From 02, the operation proceeds to the indoor unit emergency control shown in FIG. 13 to execute the on / off control operation of the outdoor unit power supply means 4. Further, the outdoor unit control means 6 proceeds from step S105 to the outdoor unit emergency control shown in FIG. 15, determines the cooling / heating operation mode based on the output of the outside air temperature sensor 14, and executes the operation (steps S131 and S132). , S133). The compressor inverter operating frequency, the outdoor unit fan speed, and the like are set to be constant (steps S134 and S135).

With the above configuration and control, the signal transmission means 1
In case of failure, the emergency operation start means 12 provided in the indoor unit A is turned on, so that the indoor unit emergency control by the indoor unit control unit 1 controls the power on / off of the outdoor unit, and the outdoor unit B The outdoor unit emergency operation in the cooling emergency operation mode or the heating emergency operation mode is possible by determining the cooling / heating operation mode from the determination of the output of the outside air temperature sensor 14.

(Seventh Embodiment) In each of the above embodiments, the operation of the outdoor unit during the emergency operation is performed with the compressor inverter operating frequency being constant and the outdoor unit fan speed being constant. However, it is configured as another predetermined operation pattern. In addition, an emergency driving pattern that is more suitable for the environment can be obtained. In addition, although the description has been given of the case where the outdoor unit is controlled by the inverter of the compressor, the same effect can be obtained in the outdoor unit by the on / off control of the compressor without the inverter control.

[0054]

As described above, according to the present invention, when the signal transmission means between the indoor unit and the outdoor unit fails, the indoor unit control unit turns on / off the power supply to the outdoor unit. The supply unit switches to emergency control for performing temperature control, and the outdoor unit control unit switches to a predetermined outdoor unit emergency control mode to perform control even when the signal transmission unit between the indoor unit and the outdoor unit is out of order. Emergency operation capable of temperature control can be performed. Further, by providing a cooling / heating operation switching means in the outdoor unit, an emergency operation capable of switching between cooling / heating can be performed. Therefore, even when the signal transmission means fails, the air conditioning operation can be performed without stopping the air-conditioning operation, and a great effect is provided for the user.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment.

FIG. 2 is a block diagram of a second embodiment.

FIG. 3 is a block diagram of a third embodiment.

FIG. 4 is a block diagram of a fourth embodiment.

FIG. 5 is a block diagram of a fifth embodiment.

FIG. 6 is a block diagram of a sixth embodiment.

FIG. 7 is an indoor unit operation control flowchart of the embodiment.

FIG. 8 is an outdoor unit operation control flowchart according to the embodiment.

FIG. 9 is a flowchart of the indoor unit normal operation of the embodiment.

FIG. 10 is a flowchart of an outdoor unit normal operation of the embodiment.

FIG. 11 is a flowchart of an indoor unit emergency control according to the embodiment.

FIG. 12 is an outdoor unit emergency control flowchart according to the embodiment.

FIG. 13 is a flowchart of an emergency control of an indoor unit according to the embodiment.

FIG. 14 is an outdoor unit emergency control flowchart according to the embodiment.

FIG. 15 is an outdoor unit emergency control flowchart according to the embodiment.

FIG. 16 is a block diagram of a conventional separation type air conditioner.

[Explanation of symbols]

 Reference Signs List 1 indoor unit control unit 2 room temperature sensor 3 indoor unit fan 4 outdoor unit power supply means 5 indoor unit side signal transmission failure judgment unit 6 outdoor unit control unit 7 inverter circuit 8 compressor 9 outdoor unit fan 10 outdoor unit side signal transmission failure judgment Means 11 Signal transmission means 12 Emergency operation start means 13 Cooling / heating switching means 14 Outside air temperature sensor A Indoor unit B Outdoor unit

Claims (4)

(57) [Claims] An indoor unit control unit provided in the indoor unit for controlling operation of the indoor unit and transmitting a control signal to the outdoor unit control unit; an outdoor unit control unit provided in the outdoor unit for controlling operation of the outdoor unit; Signal transmission means for mutually transmitting and receiving command contents such as a compressor operation command from the indoor unit to the outdoor unit and the operation status of the indoor unit or the outdoor unit, and turning on / off the power supply from the indoor unit to the outdoor unit. In the separation type air conditioner including an outdoor unit power supply unit, an indoor unit side signal transmission failure determination unit that detects a failure of the signal transmission unit, and an outdoor unit side signal transmission failure determination unit, the indoor unit side signal transmission failure determination When the failure of the signal transmission means is detected by the means, the indoor unit control unit switches to the emergency control for adjusting the temperature by the outdoor unit power supply means, and the failure of the signal transmission means is determined by the outdoor unit side signal transmission failure determination means. The separation type air conditioner characterized in that, when the outdoor air conditioner is detected, the outdoor unit controller switches the operation to an emergency operation in a predetermined outdoor unit emergency control mode and controls the operation. 2. An indoor unit control unit provided in an indoor unit for controlling operation of the indoor unit and transmitting a control signal to the outdoor unit control unit, an outdoor unit control unit provided in the outdoor unit for controlling operation of the outdoor unit, Signal transmission means for mutually transmitting and receiving command contents such as a compressor operation command from the indoor unit to the outdoor unit and the operation status of the indoor unit or the outdoor unit, and turning on / off the power supply from the indoor unit to the outdoor unit. In the separation type air conditioner including an outdoor unit power supply unit, an indoor unit side signal transmission failure determination unit that detects a failure of the signal transmission unit, and an outdoor unit side signal transmission failure determination unit, the indoor unit side signal transmission failure determination When the failure of the signal transmission means is detected by the means, the indoor unit control unit switches to the emergency control for adjusting the temperature by the outdoor unit power supply means by the emergency operation starting means for activating the emergency operation provided in the indoor unit. When the failure of the signal transmission means is detected by the outdoor unit side signal transmission failure determination means, the outdoor unit control unit switches to emergency operation in a predetermined outdoor unit emergency control mode and performs operation control. Harmony machine. 3. An air conditioner according to claim 1 or 2, further comprising a cooling / heating operation switching means in the outdoor unit to perform cooling / heating operation switching of the outdoor unit during emergency operation. A separation type air conditioner characterized by the following. 4. An outdoor unit equipped with an outdoor air temperature sensor in addition to the configuration of the separation type air conditioner according to claim 1 or 2, and performs switching between a cooling operation and a heating operation during an emergency operation. Separate type air conditioner.