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| User’s Guide |
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Emergency heat |
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System fault mode | mode |
| temperature setpoint | |
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| Auxiliary heat is On |
| Indoor temperature |
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| Heating is On |
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System operating | Fan operating | Cooling is On |
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mode selection | mode selection |
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| indoor humidity |
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| Fan is in continuous mode |
| System |
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Temperature adjustment |
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| Unoccupied | Humidifier |
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5. Operation
5.1 System Operating Mode (Heating/Cooling)
Press MODE to place the controller in one of the following modes.
HEAT | The system is in heating mode. | ||
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COOL | The system is in cooling mode. | ||
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AUTO | The system is in automatic changeover. (The system | ||
switches between heating mode and cooling mode to main- | |||
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OFF | Both heating or cooling are off. | ||
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EHEAT | The system is in emergency heat mode. Only auxiliary heat- | ||
ing is used when there is a call for heat. | |||
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5.2 |
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| Fan Operating Mode (On/Auto) | ||
Press the 
button to select the fan operating mode.
•In automatic mode, the fan runs only when heating or cooling is activated.
•In continuous mode, the fan runs continuously and the 
sym- bol is displayed. NOTE: If the “smart fan” feature is enabled, the fan will run only when heating or cooling will be activated during unoccupied mode.
5.3 Indoor Humidity / Outdoor Temperature Display
Depending on how the controller has been configured (see page 4, item 9), it displays either the measured indoor humidity level or the measured outdoor temperature.
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5.4 Temperature Adjustment
The actual (measured) temperature is normally displayed. To view
the temperature setpoint, press one of the 
buttons once. The setpoint is displayed for 5 seconds and is indicated by the 
sym- bol.
To modify the temperature setpoint, press one of the 
buttons until the desired temperature is displayed.
NOTE: If the controller is in automatic heat/cool changeover, the setpoint is automatically reduced or raised by 1°C (2°F) when the controller switches to heating mode or to cooling mode respectively. For example, if you place the setpoint at 24°C (75°F) while in heat- ing mode, the setpoint will become 25°C (77°F) in cooling mode and will return to 24°C (75°F) when the controller switches back to heat- ing mode.
5.5 Humidity Adjustment
The humidity adjustment can be placed in manual mode or in auto- matic mode (see page 4, item 11).
Manual Adjustment
In manual mode, the user sets the humidity level (5% to 60%).
Automatic Adjustment
In automatic mode, the controller sets the humidity level based on the outdoor temperature to prevent ice formation or condensation on windows. However, the user can apply an offset
Procedure
The procedure to set the humidity level (in manual mode) or the off- set (in automatic mode) is as follows:
1)Press the Mode button for 3 seconds. One of the following displays appears:
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