Approach and Delta-T Diagnostics

Condenser approach and supply/return delta-T with band labels.

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Formula and source

Approach = T_liquid_line − T_outdoor (cooling) or T_supply − T_outdoor (heat-pump heating). Delta-T = T_return_air − T_supply_air. Targets compared against manufacturer commissioning guide ranges.

Manufacturer commissioning guides by name.

Audience

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