Carrier HH18HA226 Rollout Switch 322056-301 it carries a 680 PSI

it carries a 680 PSI maximum working pressure

Built with a rugged brass body and a full 1-inch NPT pipe size

The package includes multiple burner mounting brackets (13"

When performing a commercial HVAC heat exchanger replacement

Common Questions Is the VM3222 compatible with both spring-return and non-spring return actuators

Carrier HH18HA226 Rollout Switch 322056-301 it carries a 680 PSIThe Carrier HH18HA226 Rollout Switch is a critical safety component designed for Carrier, Bryant, and Payne gas furnaces. Engineered to detect flame rollout conditionswhere burner flames escape the heat exchangerthis Single Pole Single Throw (SPST) switch protects the heating unit and surrounding structure from high temperature damage. This specific model triggers an open circuit at 320 degrees F, immediately interrupting the gas valve circuit to stop