the ETR503 eliminates the need for field calibration

031-inch diameter orifice (check specific model requirements) is designed to withstand high thermal stress while providing consistent flow rates

the board may run the cycle until the safety timeout (usually 10 minutes) is reached

ensuring that your refrigeration or air conditioning system maintains its design capacity

you will connect the white (common) and red (208V) leads

Belimo ZG-TF2 Adaptor Kit the ETR503 eliminates the needThe Belimo ZG TF2 Crankarm Adaptor Kit is a field proven solution for damper actuator retrofit applications where direct coupling to the damper shaft is physically obstructed or impossible. Specifically engineered for the Belimo TF series actuators, this kit enables seamless integration of TFB(X) spring return actuators into existing mechanical linkages, effectively replacing legacy foot mounted, crankarm style units from Honeywell, Johnson Controls,