Duo-Therm 3109228.001 Operating Instructions Manual Download Page 7

7

F. AUX. HEAT

When in the 

HEAT PUMP

 mode, if the outside ambient temperature

is measured to be below 30°F and the vehicle is equipped with a
furnace connected to the Comfort Control Center, the control will
automatically select the 

FURNACE

 operation and the 

HEAT PUMP

will shut down.

Important:

 If vehicle is not equipped with a furnace no heat

will be available below 30°F. IF vehicle is equipped with a
furnace and it is connected to its own thermostat, it must be
manually turned ON and OFF for operation.

When this happens, the 

AUX. HEAT

 and the 

HEAT

 

PUMP

 indicators

on the LCD will illuminate. Once the outside ambient temperature is
measured above 38°F, the control will return to the 

HEAT PUMP

operation and shut down the furnace if it is connected to the Comfort
Control Center. If furnace is not connected to the Comfort Control
Center, the furnace thermostat must be manually turned off.

G. DEFROST CYCLE

This cycle is active during 

HEAT PUMP

 operation and allows the

heat pump to operate down to 30°F. When the outside ambient
temperature is less than 42°F and greater than 30°F, a defrost timing
cycle will begin. The defrost timing cycle will allow operation of the
heat pump for 25 minutes. The fan will then be shut off, the refrigerant
flow reversed and run for 4-1/2 minutes, this is the 

DEFROST

 cycle.

The refrigerant flow will then be returned to normal and, after a 30
second delay will continue until the temperature is greater than 42°F
or until the temperature becomes less than 30°F, at which time the
furnace will activate. (See 

AUX. HEAT

). During the defrost cycle, the

DEFROST

 indicator on the LCD shall be illuminated.

H. OPTIONAL AUTOMATIC GENERATOR START (AGS)

On vehicles equipped with an optional AGS kit the vehicle generator
will automatically start when any zone calls for cooling and will shut
off when all zones reach set point.

1. Put the power switch in the ON position.

2. Momentarily depress and release the ZONE push-

button until AGS indicator appears on the LCD.

3. Momentarily depress and release the MODE push-

button to select AGS status.

Important: 

When shore power is available, AGS must

be switched to the off position.

MODE

FAN

UP

DOWN

OFF ON

OFF ON

LOW HIGH

MED

AUTO

LOW HIGH

MED AUTO

72

MODE

HEAT PUMP

AUX. HEAT

AUX. HEAT

°F

SET POINT

Comfor

tContr

ol

Comfor

tContr

ol

ZONE

TEMP

MODE

FAN

UP

DOWN

OFF ON

OFF ON

LOW HIGH

MED

AUTO

LOW HIGH

MED AUTO

72

MODE

HEAT PUMP

DEFROST

°F

SET POINT

Comfor

tContr

ol

Comfor

tContr

ol

ZONE

TEMP

MODE

FAN

UP

DOWN

OFF ON

OFF ON

AGS ON

AGS ON

ZONE 1

ZONE 1

Comfor

tContr

ol

Comfor

tContr

ol

ZONE

ZONE

TEMP

3

2

1

Summary of Contents for 3109228.001

Page 1: ... Comfort Control Center Part No 3109228 001 MODE FAN UP DOWN OFF ON OFF ON MODE OFF MODE OFF Comfort Control Comfort Control ZONE ZONE 1 ZONE 1 TEMP COMFORT CONTROL CENTER Part No 3109228 001 This Comfort Control Center will provide your cooling and heating requirements regardless of your vehicle size REVISION Form No 3108664 032 1 01 Replaces3108664 024 French3109564 024 2001TheDometicCorporation...

Page 2: ...onZONE2 Youcanselect the desired temperature and fan speeds for each zone independently thereby keeping your bedroom cooler than the front portion of the vehicle To determine the numberofestablishedzonesinyourvehicle depressthe ZONE push button ZONE 1 will be the first ZONE to appearintheLCDreadout TheZONEnumberselected will begin to flash and will flash for approximately 30 seconds or until anoth...

Page 3: ...atentireproce dure for each additional zone B COOLINGMODEOPERATION To set cooling temperatures and fan speeds on Duo Therm Air Conditioners the cooling mode of Duo ThermHeatPumps 1 Momentarily depress and release the MODE push button until the COOL indicator on the LCD is illumi nated 2 Depress and release the FAN push button to select your desired fan speed LOW MEDIUM HIGH or AUTO Ifyourvehicleis...

Page 4: ... point the fan will either a continue to operate in the single selected fan speed or b cycle OFF and ON with the compressor if the AUTO fan speed has been selected 5 If your vehicle contains more than one ZONE depress the ZONE push button to select ZONE 2 and repeat procedures fromStep1above Repeatentireprocedureforeachadditional zone D FURNACEMODEOPERATION If your vehicle is equipped with a gas f...

Page 5: ...N is selected the fan speed will be deter mined by the mode you are in 1 COOL MODE In the COOL mode which is the air conditioning mode the fan will automatically select thespeeddependinguponthedifferencebetweenthe temperatureSET POINTandtheroomtemperature When that difference is 8 or more The fan will operate on HIGH 4 to 8 The fan will operate on MED 4 or below The fan will operate on LOW 2 COOL ...

Page 6: ...ed electrical power is available byprovidinganon demandsecondarystageof operation NOTE The primary stage will continue to operateevenifthereisn tenoughelectricalpoweravail able to run the second stage The Comfort Control Centersimplifiesthisoperationandallowsyoutosetthe primarytemperatureset pointwhilethedifferentialtem peratureset pointwhichactivatesthesecondarystage is preset After turning on yo...

Page 7: ...5minutes Thefanwillthenbeshutoff therefrigerant flowreversedandrunfor4 1 2minutes thisistheDEFROSTcycle The refrigerant flow will then be returned to normal and after a 30 seconddelaywillcontinueuntilthetemperatureisgreaterthan42 F or until the temperature becomes less than 30 F at which time the furnacewillactivate SeeAUX HEAT Duringthedefrostcycle the DEFROST indicator on the LCD shall be illumi...

Page 8: ... some states require these people to be licensed MAINTENANCE AIR FILTER Periodically remove the return air filter Wash thefilterwithsoapandwarmwater letdryandthenreinstall or replace as required Note Neverruntheairconditionerwithoutthereturnairfilter in place This may plug the unit evaporator coil with dirt and may substantially affect the performance of the unit Comfort Control Center Clean the C...

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