Sleeper Climate Control Panels

The standard sleeper climate control panel has a fan switch, a temperature control switch, and a power switch that allow you to control the heating and air conditioning functions in the sleeper. A vehicle with an air conditioner has an air conditioner switch on the control panel. See Fig..

Vehicles with ATC have button controls instead of switch controls. See Fig..

Controls, Vehicles Without ATC

Power Switch and Indicator

The power switch is used to turn the sleeper heater and air conditioner on and off. When the heater or air conditioner is on, the indicator illuminates.

Fan Switch

The fan switch controls the fan speed and forces air through the air outlets. The fan switch has three speed settings and an off position. See Fig..

To operate the fan switch, turn the switch clockwise to increase airflow; turn the fan switch counterclockwise to decrease airflow.

1. Alarm Button

2. Time Button

3. Fan Up Button

4. Heater and Air Conditioner On Button

5. Heater and Air Conditioner Off Button

6. Temperature Up Button

7. Temperature Down Button

8. Automatic Fan Button

9. Fan Down Button

10. Display Button

Temperature Control Switch

To select the desired temperature, turn the switch to the left (counterclockwise) for cool air, or to the right (clockwise) for hot air.

Air Conditioner (A/C) Switch

The air conditioner cools and dehumidifies the air inside the sleeper. Press the optional A/C switch to turn the air conditioner on or off.

Controls, Vehicles With ATC

The controls for the sleeper heater and air conditioner are located on the right side of the ATC sleeper control panel. See Fig..

Power Switch and Indicator

Turn the sleeper heater and air conditioner on by pressing the ON button. The current set temperature is displayed for five seconds, after which it returns to the time display. When the heater or air conditioner is on, the indicator illuminates. To turn the sleeper heater and air conditioner off, press the OFF button.

Fan Switch

To operate the fan switch, press the fan up or fan down button repeatedly to incrementally increase or decrease the fan speed. Press either button for at least two seconds to continuously increase or decrease the fan speed. The fan speed setting is displayed on the sleeper control panel in 10 percent increments. When the highest or lowest fan speed is selected, HI or LO is displayed. The display returns to the time display five seconds after a fan up/down button is pressed and released.

In the ATC mode, fan speed is determined by the system as required. The fan speed is based on the difference between the set point temperature and the actual sleeper cab temperature. The greater the difference, the greater the fan speed. The AUTO fan function is disabled when either the fan up or fan down button is pressed.

Temperature Control Switch

Temperature is displayed with a three-digit annotation and can be displayed either in degrees Celsius or degrees Fahrenheit. A capital "C" or "F" is displayed for the appropriate temperature scale.

To select the desired temperature, press the temperature up or temperature down button repeatedly to incrementally increase or decrease the set temperature. Press either button for at least two seconds to continuously increase or decrease the set temperature. The temperature setting is displayed on the sleeper control panel. The display returns to the time display five seconds after a temperature up/down button is pressed and released.

The temperature units can be changed from °F to °C or from °C to °F by pressing the temperature up and temperature down buttons simultaneously. Changing the temperature units on the ATC sleeper control panel will also change the temperature units on the ATC cab control panel.

Auto Button

Press the AUTO button to enable automatic control of the fan speed. The display will show the current set temperature for five seconds, then return to the time display. When in the automatic mode, the fan speed can vary to maintain the temperature set by the user. When automatic control is turned on, the indicator above the AUTO button illuminates.

Alarm Button

Momentarily press the ALARM button to turn the alarm on and to illuminate the alarm indicator above the ALARM button. Momentarily press the button again to deactivate the alarm.

When pressing the ALARM button, the display shows the alarm time setting for five seconds before returning to the current time display. If the ALARM button is pressed and held down continuously for more than one second, the alarm time setting can be viewed without changing the state of the alarm indicator. If either the SET+ or SET– buttons are pressed simultaneously with the ALARM button held down, the alarm time setting will increase or decrease. When the ALARM button is released after changing the alarm time, the alarm will be turned on and the indicator will be illuminated. When the ALARM is sounding, press the ALARM button to turn the alarm off and to reset the alarm for the next 24-hour cycle.

To set the snooze function, press any button on the control panel, except the ALARM button, when the alarm is sounding. The alarm will sound again after seven minutes. The alarm indicator flashes when the snooze function is set.

To cancel the snooze function, press the ALARM button. This will also reset the alarm for the next 24-hour cycle.

Time Button

The clock controls are located on the left side of the ATC sleeper control panel under the display. The display will show the clock time as the default mode.

Press the TIME button to display the current time. If the TIME button is held down and either the SET+ or SET– buttons are pressed simultaneously with the TIME button, the clock setting will increase or decrease.

Display Button

Press the DISP button to allow the display and illumination of the control panel to scroll through three illumination levels: bright, dim, and off. If you want the alarm, time, or temperature setting to be displayed when the display is in the off mode, press the ALARM, TIME, or temperature up/down buttons to display the corresponding display for five seconds. After five seconds, the display will turn off. If the alarm sounds while in the display off mode, the current time will be displayed simultaneously. The display will remain on for five minutes, then turn off.

When the vehicle ignition is not powered, the sleeper climate control panel is in a power-saving mode and the display and illumination of the control panel will be off. All clock functions, including the alarm, will continue to work internally.

Temperature Secondary Mode Feature

The temperature secondary mode allows the set temperature of the cab heater and air conditioner to be automatically tied to the sleeper heater and air conditioner. In this mode, the set temperature in the vehicle will be the same whether the set temperature is changed on the cab climate control panel or the sleeper climate control panel. To enable the temperature secondary mode, press the SET+ and SET– buttons simultaneously. The display will read S–ON when the temperature secondary mode is enabled.

To disable the temperature secondary mode, press the SET+ and SET– buttons simultaneously. The display will read S–OFF indicating that the temperature secondary mode is disabled. When disabled, the temperatures for the cab and sleeper can be changed independently for separate temperature control. If you wish to maintain a temperature in the sleeper that is different than the temperature in the front of the cab, it is recommended that a curtain be used between the sleeper and the front of the cab.

Turning on the Sleeper Air Conditioner When the Cab Air Conditioner is Off

The sleeper ATC control panel can turn on the air conditioner even if the cab HVAC unit is turned off but the engine is running. By pressing the ON button, the ATC sleeper control panel will turn on the cab unit and the bunk indicator light on the cab control panel will be illuminated. If cooling is needed in the sleeper, the cab HVAC unit will switch on to a low blower fan setting and the A/C compressor clutch will engage. If cooling is no longer required in the sleeper or if heat is needed, the cab unit fan and the compressor clutch will be turned off after a five-minute delay.

Accessory Heaters

Optional accessary heaters are available from the factory in several configurations. Familiarize yourself with the equipment on your specific vehicle, and follow the manufacturer's operating and maintenance instructions.