Prevents internal valve leakage

and 325-7A series

The LED is integrated into the coil circuit

Which models are compatible with the 100108279 T&P valve

Carrier HL38MG029 Control Humidistat 320788-704 Prevents internal valve leakageThe Carrier HL38MG029 Control Humidistat is a precision electromechanical humidity controller designed for seamless integration into residential and light commercial HVAC ventilation systems. This wall mounted humidistat replacement utilizes a sensing element designed for high sensitivity to ambient moisture levels, providing reliable SPST switching to activate whole home humidifiers or energy recovery ventilators (ERVs). Engineering specifications