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a separate WHA-PKD3 series wire harness is required
this passive sensor provides exceptional linearity and accuracy
maintaining the correct superheat is non-negotiable for component longevity
preventing damage from conditions like a loss of charge or restricted airflow
range allows for precise field calibration across various ductwork configurations
Venstar VSACC0410 Relay R-22 a separate WHA-PKD3 series wireThe Venstar VSACC0410 Add A Wire Relay is a critical solution for retrofitting thermostats in applications where additional conductors are unavailable. Functioning as a 4 to 5 wire adapter, this relay allows a 4 wire cable to operate like 5 wires, specifically providing a common wire (C wire) path without the labor intensive process of pulling new thermostat wire through finished walls or tight plenums. As the direct replacement for the P474 0410, the