the P200200 Williams Fan Switch is compatible with Counterflow Top Vent (3508

this component ensures the indoor fan continues running for a fixed 80-second off-delay after the compressor cycles off

mitigating premature seal failure

resisting moisture and heat degradation in tight mechanical spaces

Simplified Integration: Built-in 1NO auxiliary contact reduces the need for additional add-on blocks for basic signaling

Lennox 12J36 Expansion Valve Els PW 17895 the P200200 Williams Fan SwitchThe Lennox 12J36 is a 4 ton NXT indoor expansion valve engineered for critical refrigerant metering in high efficiency residential and light commercial evaporator coils. This thermostatic expansion valve (TXV) modulates refrigerant flow by sensing evaporator load conditions, ensuring the system maintains precise superheat levels. By reacting to real time temperature and pressure variables, the 12J36 prevents common failure points such as liquid