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Wrong – Excessive bends in flex ducts

Wrong – Excessive bends in flex ducts
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Wrong – Flex duct is coiled and looped

Wrong – Flex duct is coiled and looped
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Wrong – Flex duct is pinched

Wrong – Flex duct is pinched
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Wrong – Insulation has misalignment, compression, and gaps

Wrong – Insulation has misalignment, compression, and gaps
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Wrong – Insulation should not be pinched where flex ducts connect to the trunk duct as compression of the insulation here can lead to cold spots and condensation on the duct surface.

Wrong – Insulation should not be pinched where flex ducts connect to the trunk duct as compression of the insulation here can lead to cold spots and condensation on the duct surface.
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Wrong – Spray foam installed with voids

Wrong – Spray foam installed with voids
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Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior

Wrong: HPWH inlet and outlet are piped to mixing valve inlet and DCW make up, driving erratic HPWH and mixing valve behavior
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Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it

Wrong: The exhaust air from one heat pump water heater is blowing into the intake of the heat pump water heater next to it