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Video:

Cold-Climate Air Source Heat Pump Install Guide: Part 6 - Line Set

Video:

Cold-Climate Air Source Heat Pump Install Guide: Part 7 - Flares

Video:

Cold-Climate Air Source Heat Pump Install Guide: Part 8 - Pressure Testing

Video:

Cold-Climate Air Source Heat Pump Install Guide: Part 9 - Evacuation

Image:

Collars that are specifically made for flexible duct have a raised bead to prevent the duct from slipping off

Collars that are specifically made for flexible duct have a raised bead to prevent the duct from slipping off
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Common exhaust duct not shared by fans in separate dwellings

Common exhaust duct not shared by fans in separate dwellings
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Concept behind an evaporative cooler – warm air is cooled as the air passes through a wet medium and gives up some of its heat to evaporate the water

Concept behind an evaporative cooler – warm air is cooled as the air passes through a wet medium and gives up some of its heat to evaporate the water
Case Study:

Concord Cape Prototype

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Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil

Condensate from this heat pump water heater is routed to a nearby floor drain, shared with the condensate lines from a condensing gas furnace and an air conditioning coil
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Condensation droplets are clearly seen on this uninsulated condensate line from an air conditioner located in a hot humid attic.

Condensation droplets are clearly seen on this uninsulated condensate line from an air conditioner located in a hot humid attic.
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Condensation has dripped onto this board and drywall from an uninsulated condensate line on an air conditioner located just above the photo in this unconditioned attic; the water pooling on the drywall will likely soon become evident from below.

Condensation has dripped onto this board and drywall from an uninsulated condensate line on an air conditioner located just above the photo in this unconditioned attic; the water pooling on the drywall will likely soon become evident from below.
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Connect the plastic application tunnel from the injection equipment to the supply plenum.

Connect the plastic application tunnel from the injection equipment to the supply plenum.
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Connect the plastic application tunnel to the injection equipment

Connect the plastic application tunnel to the injection equipment
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Connection in place but not sealed

Connection in place but not sealed
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Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer

Continuous supply and exhaust fans rated ≤ 1 sone by manufacturer
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Continuously-operating ventilation & exhaust fans include readily accessible override controls

Continuously-operating ventilation & exhaust fans include readily accessible override controls
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Contractors will inspect the home and test HVAC equipment for safety concerns before air sealing begins.

Contractors will inspect the home and test HVAC equipment for safety concerns before air sealing begins.
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Cool air flow is produced when the cooling cycle is energized (set thermostat to “cool”)

Cool air flow is produced when the cooling cycle is energized (set thermostat to “cool”)
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Cooling air temperatures that can be achieved by a direct evaporative cooler at various outdoor conditions

Cooling air temperatures that can be achieved by a direct evaporative cooler at various outdoor conditions
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Creating a soffit allows a duct trunk line to be relocated, reducing the risk of flooding damage to secondary HVAC components.

Creating a soffit allows a duct trunk line to be relocated, reducing the risk of flooding damage to secondary HVAC components.
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Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections

Cut fiber board with a red V-groove tool and a gray shiplap tool to create mitered corners and a shiplapped edge for duct sections
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Depiction of a pool plumbing system with filter, heater, skimmer, and pool pump

Depiction of a pool plumbing system with filter, heater, skimmer, and pool pump
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Direct vent appliance installed

Direct vent appliance installed
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Direct-heat risers are bare pipes that heat the space they're in without connected radiators

Direct-heat risers are bare pipes that heat the space they're in without connected radiators