Trane RLY1663 Relay 319852-301 a spring-return series actuator should

a spring-return series actuator should be utilized

this part monitors the static pressure within the inducer housing to confirm proper venting before allowing the ignition sequence to proceed

Can I use this in a return air plenum

ensuring precise fitment and eliminating the need for field modifications

Can I use this 40 VA transformer to replace a 30 VA model

Trane RLY1663 Relay 319852-301 a spring-return series actuator shouldThe Trane RLY1663 Relay is a heavy duty, field proven HVAC enclosed relay designed for demanding commercial and residential applications. Operating at a 240V coil voltage with a 5A contact rating, this 3PDT general purpose relay provides critical isolation and switching for complex circuitry in air conditioners, heat pumps, and furnaces. The unit features fine wire gauge coils and a coil molded polyester housing to resist environmental degradation and