Unit Operating Modes
line downward. If the room temperature falls to a temperature that is 2°F below the heating setpoint, the heating will be enabled, and the unit will be in the heating mode. Continue following the solid line in a clockwise direction to the heating setpoint. Once the room temperature rises to the heating setpoint, the heating mode will be disabled, and the room will be in the ventilation mode.
Figure 1. Cooling Mode
Cooling mode
Cooling mode
T E M P E R A T U R E
R I S E
Ventilation mode
Heating mode
+2°F of cooling SP cooling enable
A
heating SP
cooling SP
Cooling mode
Ventilation mode
Heating mode
T E M P E R A T U R E
F A L L
Heating mode
Cooling Mode
Cooling Mode allows the cooling to operate as needed and is activated whenever the room temperature is 2° above the cooling setpoint. In the Cooling Mode the cooling output will cycle to maintain a constant room temperature. The cooling output does not have an
The MDT control system does not support the Cooling Mode.
To change the desired cooling room temperature of an MRT control system, rotate the temperature setpoint knob on the remote panel clockwise to the desired temperature. The allowable temperature range is 55°F - 90°F. The cooling will be disabled when the room temperature drops to the Cooling Setpoint.
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