2012 Phaeton Owner's Manual - Tiffin Motorhomes

HEATING & AIR CONDITIONINGis not at fault; simply reset your breakers and/or replace your fuses. Should such conditions continue,one may wish to turn reduce the electrical load (in this case, turn “off” the air conditioning system forawhile) or start the electrical generator.To cool the motor home, the thermostat inside the Phaeton is used—this isthe same thermostat which controls the furnace functions (described earlier).The air-conditioned, cooled air is emitted through the vents which arelocated in the roof throughout the entire coach. The discharge and return airvents run parallel, front to back, on the ceiling. Note that the return vents aresimilar to the air conditioning vents. This system allows even distribution forthe returns instead of forcing an excess amount of return air through twosmaller openings. The even return system takes more of the hot air from themotor home, thereby providing cooler air throughout the unit. The airconditioning vents that are mounted on the ceiling are round vent filters(Figure 3-2) that need to be periodically checked for dust accumulation. When dust has accumulated onthe filters, remove them and wash in a mild detergent and warm water.Thermostatic ControlsFigure 3-2. RoundVent/FilterThe following is a brief overview of how best to use the thermostat (Figure 3-3). For more detailedinstructions, please consult the thermostat literature in the Owner’s Information Package.1. Turn “on” the power switch on the thermostat(s).2. Use the Mode switch to select the desired function (e.g.,COOL, OFF, HEAT). Note: In the “COOL” mode therewill be a delay of several minutes before the refrigerant inthe air-conditioning system begins to cool the motor home,as the compressor is on a time-delay circuit and it must alsocool the ductwork to the vents first.3. Select the Fan Mode operation (AUTO or ON) and the FanSpeed operation (LO or HI) to select fan speed desired.4. Press the Up and/or the Down buttons to set the desiredtemperature for the motor home.Figure 3-3. ThermostatNOTE: If the thermostat is turned “off” or the thermostat loses power (i.e., power failure), the airconditioningsystem will resume operation at the last settings programmed into it when electrical power isrestored.Liquid Propane (LP) TankThe Phaeton is equipped with an ASME (American Society ofMechanical Engineers)-approved LP tank (Figure 3-4) which is equippedwith an automatic pressure regulator. This tank contains liquidpetroleum fuel under high pressure. As this fuel passes through themain valve and through the regulator, it is converted into a gas and itspressure is reduced to a safe level for use within the motor home.Figure 3-4. Liquid Propane Tank3-4