Common signs include a total loss of 24V at the thermostat (R to C)

and R-404A

utilizing Teflon stem packing for leak-free performance and EPDM glass seals that maintain integrity under thermal cycling

technicians should mount the sensor on the north side of the building

Reznor 177235 Pressure Cutout 321894-706 Common signs include a totalThe Reznor 177235 is a critical safety component designed for high performance HVAC systems, functioning as a High Head Pressure Cutout with manual reset (M R) capabilities. Engineered to monitor refrigerant levels within the high side loop, this OEM replacement pressure switch ensures system integrity by interrupting the electrical circuit if head pressure exceeds safe operational limits. This prevents catastrophic compressor failure and extends the