AIR-CONDITIONING APPARATUS AND METHOD FOR CONTROLLING THE SAME
First Claim
1. An air-conditioning apparatus including a refrigerant circuit in which a compressor, a discharge gas cooling unit, an oil separator, a flow switching device, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger are connected to each other in a loop and capable of performing a cooling operation and a heating operation by switching a channel with the flow switching device, the air-conditioning apparatus comprising:
- a heat rejection control means for controlling the discharge gas cooling unit such thatthe discharge gas cooling unit cools discharge gas from the compressor when the operating state is the cooling operation, andthe discharge gas cooling unit does not cool the discharge gas when the operating state is the heating operation.
1 Assignment
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Accused Products
Abstract
When operation of an air-conditioning apparatus starts, an operation determination means determines whether the operation is a cooling operation or a heating operation. If the operation is determined not to be the cooling operation, a discharge gas cooling unit does not perform cooling. On the other hand, if the operation is determined to be the cooling operation, the discharge gas cooling unit cools discharge gas.
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Citations
7 Claims
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1. An air-conditioning apparatus including a refrigerant circuit in which a compressor, a discharge gas cooling unit, an oil separator, a flow switching device, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger are connected to each other in a loop and capable of performing a cooling operation and a heating operation by switching a channel with the flow switching device, the air-conditioning apparatus comprising:
a heat rejection control means for controlling the discharge gas cooling unit such that the discharge gas cooling unit cools discharge gas from the compressor when the operating state is the cooling operation, and the discharge gas cooling unit does not cool the discharge gas when the operating state is the heating operation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling an air-conditioning apparatus including a refrigerant circuit in which a compressor, a discharge gas cooling unit, an oil separator, a flow switching device, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger are connected to each other in a loop and capable of performing a cooling operation and a heating operation by switching a channel with the flow switching device, the method comprising:
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controlling the discharge gas cooling unit such that discharge gas from the compressor is cooled when the operating state is the cooling operation, and the discharge gas is not cooled when the operating state is the heating operation.
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Specification