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Heat will not turn off on SE76xx RTU Room controller

Issue

The AO output on the SE7600 controller is either off or on instead of modulating.

Environment

SE7600F Room Controller

Cause

The SE7600 Room Controller is expecting a Discharge Air Sensor to be connected in order to detect minimum heating temperatures. While this is missing it will not modulate the heat based on room demand.

Resolution

Install a 10k Type 2 Discharge Air Sensor between the DS an Comm terminals or add a 10k resistor to allow the unit to modulate heat based on room spacetemp.

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Version history
Revision #:
1 of 1
Last update:
2 weeks ago
Updated by: