Integrated ventilation unit
AssigneeReznor LLC
InventorsSeng K. Phannavong, Christopher A. Hughes, Thomas W. Clark, John P. McKissack, David G. Street, Timothy J. Roberts
Life of this patent
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Abstract
An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.
Claims22
An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space, comprising:
- a heat pump system comprising:
- a first coil located at a supply air side of the ventilation unit,
- a second coil located at an exhaust air side of the ventilation unit, and
- a compressor;
- an energy recovery device configured to transfer heat between a return air stream and a supply air stream;
- a control unit configured to control operation of the heat pump system and the energy recovery device;
- an intake air chamber configured to receive outside air;
- and
- a heater located adjacent the intake air chamber,
- wherein the control unit is configured to:
- determine whether the temperature of the outside air is less than a predetermined value, and
- activate the heater when the temperature of the outside air is less than the predetermined value.
An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space, comprising:
- a heat pump system comprising:
- a first coil located at a supply air side of the ventilation unit,
- a second coil located at an exhaust air side of the ventilation unit, and
- a compressor;
- an energy recovery device configured to transfer heat between a return air stream and a supply air stream;
- a control unit configured to control operation of the heat pump system and the energy recovery device;
- a return air chamber configured to receive return air from the indoor space;
- an exhaust air chamber, wherein the second coil is located in the exhaust air chamber;
- and
- a passageway or duct coupling the return air chamber to the exhaust air chamber, the passageway or duct bypassing the energy recovery device and being configured to provide return air to the second coil.
A device configured to provide ventilation and conditioned air, comprising:
- a heat pump system comprising:
- a first coil located at a supply air side of the device,
- a second coil located at an exhaust air side of the device, and
- a compressor;
- an energy recovery device located upstream of the first coil with respect to a supply air stream, and upstream of the second coil with respect to a return air stream, the energy recovery device being configured to transfer heat between the return air stream and the supply air stream;
- a control unit configured to control operation of the heat pump system and the energy recovery device;
- and
- a passageway or opening located between an intake air side of the device and the exhaust air side of the device, the passageway or opening configured to provide outside air to the second coil of the heat pump system, wherein the outside air provided to the second coil of the heat pump system bypasses the energy recovery device.
Dependencies are inferred from the claim text.