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MUA-SVP01A-EN • Direct-Fired Indoor and Outdoor Units 15
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.
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 anti-cycle delay.
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.
Figure 1. Cooling Mode
heatin
g
SP
Heating
mode
+2°F of cooling SP
cooling enable
Ventilation
mode
T
E
M
P
E
R
A
T
U
R
E
R
I
S
E
coolin
g
SP
-2°F of heating SP
heating enable
Ventilation
mode
Cooling
mode
Heating
mode
Cooling
mode
T
E
M
P
E
R
A
T
U
R
E
F
A
L
L
Heatin
g
mode
Coolin
g
mode
A