Fan Cool Furnace *Heat Pump or Heat Strip ˚F On/Off Mode Single Zone LCD Thermostat Operating Instructions MODEL 3313192.XXX Cool/Furnace 3313193.XXX Cool/Furnace/Heat Pump 3313194.XXX Cool/Furnace/Heat Strip 3313327.045 REVISION Form No. 3313327.045 6/12 (Replaces 3313327.037) (French 3313345.
TABLE OF CONTENTS About Your New Thermostat Features...................................................................................................3 System Initialization..................................................................................3 Factory Preset Settings............................................................................4 Quick Reference To Control Buttons........................................................4 Programming & Operations On/Off..............................
About Your New Thermostat Congratulations! Your recreational vehicle manufacturer has equipped your RV with the most advanced RV thermostat. Your Dometic Single Zone LCD thermostat has been designed for ease of operation and for many years of reliable service. Features • Liquid Crystal Display and Green LED Mode Indicators • Auto Fan • Indoor Temperature Display • °F / °C Display • Air conditioner can provide additional indoor air circulation during furnace operation.
Your Dometic Single Zone LCD thermostat has been pre-programmed. Review settings below and adjust the settings to your personal comfort level.
Programming & Operations On/Off To turn On the Single Zone LCD thermostat, press the On/Off Mode button. The LCD will be activated. To turn Off the Single Zone LCD thermostat press the On/Off Mode button and toggle through the modes until the On/Off green LED is on. The LCD will go out and the green LED will remain on for approximately 15 seconds, then go out. Temperature Format ºF / ºC Simultaneously press the “+” and “―“ buttons to toggle between Fahrenheit and Centigrade format.
Inside Temperature To display the Inside Temperature, the Single Zone LCD thermostat must be in the Off Mode. Press either the “+” or “―” button to display the Inside Temperature. Fan Cool Furnace ˚F On/Off Mode Mode Selection Press the On/Off Mode button to advance through the available modes. Each successive press will advance to the next available mode. The green LED will indicate the mode selected.
Fan Speed Press the On/Off Mode button until the fan green LED is lit. The LCD will show “Lo” (Low), “Hi” (High) or “Au” (Auto). Press the “+” or “―” button to select the desired fan speed. See “Special Features” on page 11 for more information on Auto Fan. Fan Cool Furnace On/Off Mode Temperature Set-Point Press the “+” or “―” button to change the temperature set-point. The temperature set-point is indicated by two digits on the LCD.
Mode Description “Off” - Off Mode When selected, the LCD will be blank and the Off green LED will turn on for 15 seconds, then it will turn off. “Cool” - Cool Mode In the Cool Mode the system will cycle the compressor On and Off based on the room air temperature and the temperature set-point on the Single Zone LCD thermostat. The fan will turn on first followed by the compressor in approximately 2 minutes. In this mode there are 3 fan speed selections: Lo - (LOW): The fan operates continuously at low speed.
In the FURNACE Mode the system will cycle the RV’s furnace On and Off based on the room air temperature and the temperature setpoint on the Single Zone LCD thermostat. The system can be configured to operate using an On/Off differential of either 1 degree F or 2 degree F. This feature is programmed during the system initialization. See “System Initialization” on page 3. To set the temperature differential the system must be Off.
In the Heat Pump Mode the system will cycle the compressor On and Off based on the room air temperature and the temperature setpoint on the Single Zone LCD thermostat. When the system calls for heating there will be a delay of approximately two minutes. In auto fan, the compressor will turn On first followed by the fan in approximately 15 seconds. In this mode there are 3 fan speed selections: Lo - (LOW): The fan operates continuously at low speed. The compressor cycles On and Off.
Auto Fan Special Features When auto fan is selected the fan speed will vary depending on the difference between the temperature set-point and the room temperature. In auto fan the compressor and fan cycle On and Off with the thermostat. When the difference is: >5º The fan operates on HIGH <4º The fan operates on LOW Compressor Time Delay A time delay of approximately two minutes occurs any time the compressor is required to begin the cooling or heat pump cycle.
Low Ambient Heat Pump Lock Out All heat pumps are constrained to operation at a temperature range that is determined by outside conditions. Since all heat pumps lose their efficiency at low outside ambient temperatures, the Dometic heat pump has a lock out feature that prevents heat pump mode of operation when temperatures fall below 30 °F. If you have the system set in the Auto Mode the fan will be turned OFF.
General Information A. The ability of the air conditioner to maintain the desired inside temperature depends on the heat gain of the RV. Some preventative measures taken by the occupants of the RV can reduce the heat gain and improve the performance of the air conditioner. During extremely high outdoor temperatures, the heat gain of the vehicle may be reduced by: 1. Parking the RV in a shaded area 2. Using window shades (blinds and/or curtains) 3. Keeping windows and doors shut or minimizing usage 4.
Service In the unlikely event the unit fails to operate or operates improperly, check the following before calling your service center. 1. If your RV is connected to a motor generator, check to be sure the motor generator is running and producing power. 2. If the RV is connected to a power supply by a land line, check to be sure the line is sized properly to run air conditioner load and it is plugged into the power supply. 3. Check your 120 Vac fuse or circuit breaker to see if it is open. 4.
