as these can enlarge the #35 opening

this HVAC safety switch is calibrated to provide high-limit protection by breaking the electrical circuit to the gas valve or ignition control if internal temperatures exceed factory safety thresholds

provided the outlet pressure spring range (8-12" w

Does this unit require a separate transformer

though it is typically not required for lower torque 25

Lennox 68J37 Contactor as these can enlarge theThe Lennox 68J37 Contactor is a heavy duty 2 pole 35 amp electrical contactor engineered for consistent performance in residential and light commercial HVAC systems. This definite purpose contactor features a 24V coil and serves as a direct replacement for Lennox 68J3701 and 3100 20Q2208. Built to withstand the high inrush currents typical of AC compressor startup, its silver cadmium oxide contacts resist welding and pitting under thermal load. The