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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
ideal for systems with expansion valves or frequent cycling
Key Benefits: Direct Replacement: Specifically engineered to replace the legacy Robertshaw 5500-135 and VSI (INF) series switches without additional modifications
significantly improving readability from a distance
This compressor is charged with Polyolester (POE) oil
Resistance should be checked across terminals to verify sensor integrity
Siemens Building Technology GMA121.1U Actuator 340793-762 ideal for systems with expansionThe Siemens GMA121. 1U is a heavy duty spring return damper actuator engineered for high demand HVACR applications requiring reliable fail safe operation. Operating on 24VAC DC, this direct coupled actuator delivers a robust 62 lb in torque (7 Nm), making it an ideal choice for managing return air, mixed air, and exhaust dampers in both constant and variable air volume systems. Built with a rugged, die cast aluminum NEMA 1 housing, this unit ensures