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25-12 RotoLock thread
making it ideal for systems with multiple stages or auxiliary controls
While this "All Range" model is listed for R-22 and R-134A
including those with up to 60% glycol
This actuator utilizes three-wire control where one common wire and two hot wires dictate the direction of rotation
Siemens Building Technology QPA2000 Sensor Freon 25-12 RotoLock threadThe Siemens QPA2000 is a high precision room air quality sensor engineered to monitor CO2 concentration in commercial HVAC systems. Designed for demand controlled ventilation (DCV), this unit provides a linear 0 10Vdc output signal corresponding to a 0 2000 PPM CO2 range, ensuring optimal indoor air quality and energy efficiency. It serves as the 90DM3ASM 1 replacement, offering a seamless fit for legacy system upgrades. The sensor utilizes a
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