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If the thermostat is in cool mode, pressing the
COOL
button
disables COOL mode (indicated by OFF in the SYSTEM
box - see figure 6).
SYSTEM
COOL
OFF
HEAT
75
ROOM
°
OC
Figure 6. Cool Mode Disabled
Cooling Demand
Set the thermostat to cool mode to control the cooling
equipment. Then, if the room temperature is higher than the
temperature setpoint, the thermostat detects a cooling
demand and will activate the cooling equipment to satisfy
the demand.
75
ROOM
°
OC
SYSTEM
COOL
OFF
HEAT
HI
Figure 7. Cooling Demand
Cooling operation is indicated by flashing “snowflake” icons
in the SYSTEM box. When the actual temperature drops
below the temperature setpoint, the snowflake icons will
disappear. This indicates that the cooling demand has been
satisfied and that the cooling equipment has been turned
off.
If a large cooling demand is present, ”Hi” will be displayed in
the SYSTEM box (shown in figure 7).
NOTE - If no buttons are pressed during a demand for
cooling, the equipment must operate for at least four
minutes. After a demand has been satisfied, cooling
equipment operation is locked out for five minutes. If
another cooling demand occurs during this 5-minute
interval, “COOL” and the snowflakes will flash; however, the
cooling equipment will not operate until the 5-minute delay
has elapsed.
HOLD - Using Temperature Hold Modes
When HOLD is displayed on the HOME screen, the
thermostat is in a temperature hold condition. This means
that the temperature program data is ignored and the
thermostat functions much like a non-programmable
thermostat.
Adjusting Temperature Setpoint in Hold Mode
The temperature setpoint represents the desired
temperature of the space around the thermostat.
To adjust the setpoint, press the up or down (
YB
) arrow
buttons the existing setpoint is displayed to the right of the
