Aube Technologies TH146-N-DE manual Operation, User’s Guide, System Operating Mode Heating/Cooling

			TH146-N-DE
				User’s Guide
		Non-programmable Heat Pump Controller
Emergency heat	Dual-energy		Appears when the
System fault mode	mode		temperature setpoint
			is displayed
		Auxiliary heat is On		Indoor temperature
		Heating is On
				Outdoor
System operating	Fan operating	Cooling is On
				temperature or
mode selection	mode selection			indoor humidity
		Fan is in continuous mode		System
				operating mode
Temperature adjustment			Unoccupied	Humidifier
			mode is On	is On

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.
COOL	The system is in cooling mode.
AUTO	The system is in automatic changeover. (The system
	switches between heating mode and cooling mode to main-
	tain the desired temperature.)
OFF	Both heating or cooling are off.
EHEAT	The system is in emergency heat mode. Only auxiliary heat-
	ing is used when there is a call for heat.
5.2
	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.

Outdoor	Indoor
temperature	humidity

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 (-9% to 9%). For example, the user can enter a negative offset if there is too much condensation on the windows.

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:

TH146-N-DE 400-280-000-G 9/22/06 7/8