preventing problematic CO emissions or sooting and keeping the equipment compliant with local atmospheric vent or sealed combustion codes

providing a consistent 40VA rating for low-voltage control circuits

is a high-performance solid-core current transducer engineered for precise load trending in industrial and commercial HVACR applications

Specifically engineered for single-stage gas valves

The compact housing

Trane RLY1770 Relay/Sequencer 320788-704 preventing problematic CO emissions orThe Trane RLY1770 is a specialized HVAC fan time delay relay and electric heat sequencer engineered to manage high amperage blower motor and heating element startup cycles. This SPST (Single Pole Single Throw) relay provides a critical time delay function, preventing simultaneous high load activation to protect the electrical service and prevent circuit breaker tripping. Operating on a 24V coil voltage, the RLY1770 is a direct OEM replacement for