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0752 Heat Pump Coil Upstream of Heat Exchanger - Heating - Heat Exchangers
0752 Heat Pump Coil Upstream of Heat Exchanger - Heating - Heat Exchangers -

Image Text: The inside heat pump coil should NOT be installed upstream of the furnace heat exchanger > in the summer months, the cold air from the coil will cause the moist air on the FIRE side of the heat exchanger to condense - this rusts the heat exchanger > supply plenum > cold air return > heat pump coil > up-flow gas furnace

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