this switch prevents hazardous operation by interlocking the gas valve with proper venting

the System Sensor MHW plate-mounts directly to a standard single-gang backbox

For technicians upgrading older systems

which maintains airflow post-cycle to maximize latent heat transfer and prevent coil freeze-ups

Belimo ZG-AFB Adaptor Kit Els PW 17895 this switch prevents hazardous operationThe Belimo ZG AFB Adaptor Kit is a specialized mounting accessory engineered for short shaft linkage applications, specifically designed to bridge the gap between AFB and NFB actuator series and existing damper hardware. This kit is essential for contractors performing retrofits or repairs where the standard actuator drive may not align with legacy crank arm setups. The hardware ensures high torque transmission without slippage, maintaining damper