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Proper resistance checks should be performed during installation to ensure the ignitor assembly matches the voltage requirements of the 120V integrated furnace control board
and low-pressure gas shutoff
The threaded connection ensures a gas-tight fit
and BDP350 series
Siemens Building Technology QPA2000 Sensor Refrigerant Proper resistance checks should beThe 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