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 loca
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.
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1. 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, anda compress
1. 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, anda 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; anda 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, andactivate the heater when the temperature of the outside air is less than the predetermined value. 2. The ventilation unit of claim 1, further comprising: a passageway or opening located between the intake air chamber and the exhaust air side of the ventilation unit, the passageway or opening being configured to provide outside air to the second coil of the heat pump system. 3. The ventilation unit of claim 2, further comprising: a damper located in the passageway or opening, andwherein the control unit is further configured to control the degree of opening or closing of the damper to control an amount of outside air provided to the second coil. 4. The ventilation unit of claim 3, wherein the control unit is configured to control the damper to divert at least 35% of the air entering the air intake chamber to the exhaust air chamber. 5. The ventilation unit of claim 2, wherein an amount of air provided to the second coil is greater than an amount of air provided to the first coil. 6. The ventilation unit of claim 1, further comprising: a passageway or opening configured to provide outside air to the second coil of the heat pump system. 7. The ventilation unit of claim 1, wherein the compressor comprises at least one of a variable speed or variable capacity compressor, and wherein the control unit is configured to vary the speed of the variable speed compressor or variable capacity compressor based on conditions associated with air exiting the supply air side of the ventilation unit. 8. The ventilation unit of claim 1, wherein the energy recovery device is further configured to transfer moisture between the return air stream and the supply air stream. 9. The ventilation unit of claim 1, wherein the energy recovery device comprises a desiccant wheel, and wherein the control unit is further configured to: at least one of vary the speed, turn off or turn on the desiccant wheel based on environmental conditions associated with at least one of the supply air stream and the return air stream. 10. The ventilation unit of claim 1, further comprising: a supply fan configured to supply air to the indoor space; andan exhaust fan configured to expel air received from the indoor space and outdoor air provided to the second coil, andwherein the control unit is configured to: control the speed of the supply fan and the exhaust fan. 11. The ventilator unit of claim 1, wherein the heat pump system, the energy recovery device and the control unit are contained in a single housing. 12. 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, anda 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; anda 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. 13. 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, anda 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; anda 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. 14. The device of claim 13, further comprising: an intake air chamber configured to receive outside air; anda 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, andactivate the heater when the temperature of the outside air is less than the predetermined value. 15. The device of claim 13, further comprising: a damper located in the passageway or opening, andwherein an amount of air provided via the damper to the second coil is greater than an amount of air provided to the first coil. 16. The device of claim 15, wherein the control unit is configured to control the damper to divert at least 35% of the air entering the air intake side of the device to the exhaust air side of the device. 17. The device of claim 13, wherein the compressor comprises a variable speed compressor, and wherein the control unit is configured to vary the speed of the variable speed compressor based on conditions associated with air exiting the supply air side of the device. 18. The device of claim 13, wherein the energy recovery device is further configured to transfer moisture between the return air stream and the supply air stream. 19. The device of claim 13, wherein the energy recovery device comprises a desiccant wheel, and wherein the control unit is further configured to: vary the speed of the desiccant wheel based on environmental conditions associated with at least one of the supply air stream and the return air stream. 20. The device of claim 13, further comprising: a supply fan configured to supply air to the indoor space; andan exhaust fan configured to expel air from the indoor space, andwherein the control unit is configured to: control the speed of the supply fan and the exhaust fan. 21. The device of claim 13, wherein the control unit is further configured to: determine at least one environmental parameter associated with operation of the device without using a sensor to measure the at least one parameter. 22. The device of claim 13, wherein the heat pump system, the energy recovery device and the control unit are contained in a single housing.
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이 특허에 인용된 특허 (34)
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