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US 2011/0030397 A1Published application
Start-up procedure for refrigerant systems having microchemical consensor and reheat cycle
OwnerMichael F. Taras, Eric B. Fraserinventors
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Abstract
A refrigerant system has a condenser of microchannel design and construction and includes a reheat cycle. The reheat cycle includes a refrigerant flow control device, such as a three-way valve, for selectively routing at least a portion of refrigerant through a reheat heat exchanger from a location between a compressor and expansion device. A control for the refrigerant system selectively actuates this refrigerant flow control device to route at least a portion of refrigerant through the reheat heat exchanger at system start-up.
Claims15
A refrigerant system comprising:
- a compressor for delivering a compressed refrigerant to a condenser, refrigerant from said condenser passing through an expansion device, and from said expansion device through an evaporator, and from said evaporator being returned to said compressor;
- and
- said condenser being a microchannel heat exchanger;
- a reheat cycle including a refrigerant flow control device for selectively routing at least a portion of refrigerant through a reheat heat exchanger, said refrigerant flow control device being positioned to route said at least portion of refrigerant through said reheat heat exchanger from a location between said compressor and said expansion device, and said reheat heat exchanger being positioned in a path of air that has passed over said evaporator;
- and
- a control for the system selectively actuating said switch to route at least a portion of refrigerant through said reheat heat exchanger at refrigerant system start-up.
3 more elements
A method of operating a refrigerant system comprising the steps of:
- a) delivering a compressed refrigerant to a condenser, refrigerant from said condenser passing through an expansion device, and from said expansion device through an evaporator, and from said evaporator being returned to said compressor;
- b) said condenser being a microchannel heat exchanger;
- c) selectively routing at least a portion of refrigerant through a reheat heat exchanger from a location between said compressor and said expansion device, and passing at least a portion of air over said reheat heat exchanger after the air has passed over said evaporator;
- and
- d) selectively actuating a refrigerant flow control device to route said at least portion of refrigerant through said reheat heat exchanger at system start-up.
2 more elements
Dependencies are inferred from the claim text.