When zones close and static pressure rises

Thermal Protection: Engineered to withstand the operational heat loads typical of continuous-duty air handling units

the 159S uses snap acting switches designed to replace older mercury-style controllers in high-pressure applications up to 150 psi

Reliable Seating: Features non-metallic disc-to-metal seating and a stainless steel spring to prevent seat-sticking and ensure a clean pop-off during overpressure events

this Energy Star certified fan is suitable for installation above bathtubs and showers when connected to a GFCI branch protected circuit

Hartland Controls CAP-45/7.5/440R Run Capacitor 320788-704 When zones close and staticThe Hartland Controls CAP 45 7. 5 440R is a professional grade 45 7. 5 MFD 440V dual run capacitor designed for demanding HVACR applications. As a direct C34575R replacement, this round metal canister unit provides the necessary phase shift for both the compressor and condenser fan motor in residential and commercial split systems. This dual run capacitor features a dual voltage rating, making it backward compatible with 370 VAC systems while offering