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Operating at 120V with a frequency of 50/60Hz
Technicians should check for continuity across the control terminals and verify the resistance of the compressor thermistors to confirm if the 300042215 is responding to a genuine thermal event
To maximize vibration damping
the unit may continue to run after the thermostat is satisfied
Aprilaire 6404 Control 320074-702 Operating at 120V with aThe Aprilaire 6404 Control is a professional grade 4 zone control panel designed to provide precise HVAC zoning solutions for both residential and commercial applications. This universal multistage zone controller is compatible with single stage heat cool, multi stage conventional (up to 2H 2C), and heat pump systems (up to 4H 2C). Featuring an LCD display for setup and LED status indicators for real time diagnostics, the Aprilaire 6404 simplifies the
