if you see "High Discharge Temp" trips on the module despite having power at the 120V coil

It should never be used as an operating control to regulate system temperature or standard working pressure

What causes a Lennox burner assembly to fail

Featuring a precise -1

and HP972 series pneumatic humidistats

Resideo VU53S2034 Valve 318518-761 if you see "High DischargeThe Resideo VU53S2034 is a high performance 2 way fan coil valve engineered for precise control in hydronic systems utilizing chilled or hot water. Designed with a 1 2" sweat connection and a 3. 5 Cv flow coefficient, this normally closed HVAC valve ensures reliable flow regulation with a 20 PSI maximum close off pressure. The brass body construction, featuring a brass seat and stem, provides the thermal stability required for demanding commercial and