the ASCO 8215G33-240V is specifically rated for fuel gas services

Common Questions How do I adjust the outlet pressure on the 1156F

Identical in technical spec to the 21-841 for reliable legacy support

The spring return actuator must be purchased separately to complete the assembly

Lochinvar & A.O. Smith 100111630 Pressure Switch 320788-703 the ASCO 8215G33-240V is specificallyThe Lochinvar & A. O. Smith 100111630 Pressure Switch is a critical safety component designed for precise air pressure detection in high efficiency water heaters and boiler systems. Specifically calibrated to a 1. 00" WC (Water Column) set point, this SPST (Single Pole Single Throw) switch features a normally open (NO) contact configuration. It is engineered to monitor the combustion chamber pressure, ensuring the blower motor is sufficiently venting