The basis for the bulletin is that the contractor has to install a single pole double throw (SPDT) 24V relay if they want run the unit in the heat mode via a regular 24V thermostat.
Modified on: Wed, 11 Nov, 2020 at 10:35 AM
The basis for the bulletin is that the contractor has to install a single pole double throw (SPDT) 24V relay if they want run the unit in the heat mode via a regular 24V thermostat.
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