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and Robertshaw 36-inch thermocouples
and exhaust air applications
a valve with EPDM or Viton seals and a higher temperature rating is typically recommended
This air pressure switch is engineered to sense the static pressure produced by the combustion blower
Whether you are performing a retro-fit or a repair
Carrier HH680109 Rollout Switch 324846-701 and Robertshaw 36-inch thermocouplesThe Carrier HH680109 Rollout Switch is a critical safety component designed for furnace combustion chambers, specifically engineered to detect sustained flame rollout conditions. This 190F manual reset rollout switch features a single pole double throw (SPDT) configuration, providing reliable circuit interruption and signaling for modern HVAC control boards. As a direct OEM replacement for HH22HA189, it ensures precise thermal calibration for Carrier,