| 摘要 |
PURPOSE:To make it possible to prevent a compressor from being operated at a high load and to remove uncomfortable due to the stoppage of the space heating operation for a long priod of time by providing a suction air temperature detector for detecting an indoor suction air temperature of an indoor heat exchanger thereby to stop the compressor or to change over to a low-capacity operation. CONSTITUTION:In a case where the indoor temperature is 20 deg.C or less, thermostats 14a and 15a are turned ON, and when an operation switch 25 is turned ON, a centrifu gal type blower 5, a compressor 8, and an axial flow type blower 10 start their operations and a space heating operation is started. When the indoor temperature reaches the set temperature (22 deg.C) of a remote indoor temperature detecting thermostat 15a, the thermostat 15a is turned OFF and the centrifugal type blower 5 and the compressor 8 are stopped, thus a thermocycle operation being carried out. When the temperature in the vicinity of the ceiling 1 reaches 350 deg.C, while the suction temperature detecting thermostat 14a is turned OFF beforehand to stop the compressor 8 and the centrifugal type blower 5 and hence the compressor 8 is not operated at an over load. When the suction air temperature is lowered to 30 deg.C or less, the thermostat 14a is turned ON and the space heating operation is restarted.
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