Belimo ZG-NM4 Crankarm Kit ensuring the thermocouple or thermopile

ensuring the thermocouple or thermopile (depending on your specific valve configuration) sits correctly in the flame path for reliable millivolt production

but the Trane blower door switch must be fully functional for permanent operation to meet code and safety requirements

significantly reducing troubleshooting time and preventing incorrect terminations during installation

Designed as a direct replacement for the J641DHA-4712C

Belimo ZG-NM4 Crankarm Kit ensuring the thermocouple or thermopileThe Belimo ZG NM4 Crankarm Kit is a specialized damper actuator accessory engineered for NM Series actuators when direct coupling to the damper shaft is physically obstructed or impossible. Functioning as a high performance HVAC linkage kit, the ZG NM4 provides a reliable mechanical interface for crankarm mounting in space constrained installations or retrofit applications. This kit serves as the direct replacement for ZG NM3, offering improved