Operator’s Manual ComfortPro TM Auxiliary Power Unit ... · PDF fileRemove contaminated...

ComfortProTM Auxiliary Power UnitModels PC6022, PC6023, PC6024

Auxiliary Power Unit

30-G86-57 Rev-B

Operator’s Manual

Contents

30-G86-57 Rev-B PAGE I

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2ComfortPro Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Warnings/Cautions MUST be observed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8APU (Auxiliary Power Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9HVAC System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10DCP (Driver Control Panel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

HOW COMFORTPRO OPERATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Automatic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

MANUAL OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Starting the APU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Stopping the APU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Turning the Heater ON or OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Heating: Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Turning the A/C ON or OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21A/C: Setting the Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

PAGE II 30-G86-57 Rev-B

Contents (cont.)AUTOMATIC OPERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Password Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Setting the Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Comfort Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Temp Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Maximum Run Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Battery Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

INSIDE THE APU ENCLOSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

CCU GENERAL INSPECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

30-G86-57 Rev-B PAGE 1

Thank you for buying the ComfortPro auxiliary power unit and comfort system.

WARRANTY COVERAGE AND REGISTRATIONThe ComfortPro APU is covered by a 2 year/4000 hour warranty. If installed, the DPF iscovered by a 3 year/1600 hour warranty. Please read the warranty policy carefully.

Introduction

The ComfortPro APU and DPF must be registered separately on the Impco APU Dealerlink;https://dealerlink.gficontrolsystems.com/.

SERVICINGImportant: The warranty will be void if the ComfortPro is not serviced according to theinstructions in the ComfortPro Maintenance Schedule see page 43.

IMPORTANT!THE DPF AND APU MUST BE REGISTERED BY YOUR INSTALLER THROUGH THE IMPCODEALERLINK SYSTEM.

IF YOU FAIL TO REGISTER THE UNIT WITHIN 30 DAYS OF INSTALLATION, IMPCO MAYHAVE GROUNDS TO DENY ALL WARRANTY COVERAGE.

30-G86-57 Rev-B

OverviewThe ComfortPro consists of an APU (auxiliary power unit), an HVAC (heating, ventilation (fan)and air conditioning system) and a DCP (driver's control panel). The APU is a diesel poweredgenerator that runs using diesel fuel obtained from the truck's fuel tank. The APU providespower to the ComfortPro HVAC and power outlet that are installed in the truck bunk.

ComfortPro Features KEY FEATURES• Provides heating or air conditioning to the truck bunk.• Provides power to run 115V appliances in the truck bunk.• Charges the truck battery. It is more efficient to charge the battery by running the

ComfortPro than by running the truck engine.• Warms the truck engine, by passing coolant that has been warmed by the APU into the engine.

LIMPING HOME FEATUREIn normal operations, the truck battery is charged by the truck engine or the APU,whichever is running. Typically, the truck engine and APU do not run at the same time.The exception to this occurs when the truck alternator is malfunctioning, so that therunning truck engine cannot charge the truck batteries.

In this case, the ComfortPro Battery Monitor feature will detect when the battery charge hasdropped below a specific level, and will automatically start the APU in order to charge thebattery, even though the truck engine may be running. The Battery Monitor feature thusgives you the ability to "limp home" with a malfunctioning alternator. Remember to set upthe Battery Monitor feature, as described on page 39.


OverviewCOMFORTPRO OPTIONSSHORE POWERThe ComfortPro Shore Power option lets you plug your ComfortPro into standard 115VACelectrical outlet (shore power) and use the HVAC without having to run the APU. This optionprovides additional fuel savings.

For more information, contact your dealer.

MAIN ENGINE INTERLOCKThe APU is designed to be started when the truck engine is not running, that is, when youare not driving. The main engine interlock option is available to prevent the APU fromoperating when the truck engine is running. This option can be installed when theComfortPro is installed, or can be installed at a later date; contact your dealer.

When the main engine interlock option is installed, the only situation in which the APUand truck engine can both be running is in order to limp home, as described on theprevious page.

CONDENSER WINTER COVERThe winter cover protects the condenser from winter road debris such as salt and slush.

To attach the cover, wrap it around the APU and secure with the hook-and-loop fasteners.

ComfortPro Features(cont.)

NOTICERemember to remove the winter coverwhen you start using the air conditioning.The air conditioning will not functionproperly when the cover is in place.

30-G86-57 Rev-B

OverviewCOMFORTPRO FUNCTIONSThe ComfortPro includes the following "comfort system" functions:

• Manual Operation: Manual control of the HVAC to provide a comfortable temperature inthe truck bunk.

• Comfort Monitor: You can program the ComfortPro to automatically turn on the APUand HVAC as required in order to maintain a comfortable temperature in the truck bunk.

• Timer: You can program the ComfortPro to automatically turn on the HVAC at specifictimes and days of the week and for a specific length of time. For example, every day at6:00 p.m. for 1 hour. There are two timers.

The ComfortPro also includes the following APU functions:

• Temp Start: You can program the ComfortPro to automatically turn on the APU and HVACperiodically whenever the temperature goes below a specified value, in order to preventthe APU engine and truck engine from getting so cold that they will not start.

• Battery Monitor: You can program the ComfortPro to detect when the truck batteriesare running low and automatically turn on the APU in order to recharge the batteries.

• Maximum Run Time: You can set the maximum time that the APU is allowed to runcontinuously.

A password can be set up to restrict the ability to set up or change the operation of any orall automatic functions.

ComfortPro Features(cont.)


SafetyThese safety alerts alone cannot eliminate hazards that can occur. Strict compliance withthese special instructions when performing the installation and maintenance, plus commonsense, are major accident prevention measures.

CAUTIONHazards or unsafe practices that couldresult in minor injury or product orproperty damage.

WARNINGHazards or unsafe practices that couldresult in severe personal injury or death.

EXHAUSTInhalation of exhaust gas (containingcarbon monoxide) may cause severepersonal injury and/or death. Anyonesuspected of suffering from carbonmonoxide inhalation should be removedfrom the hazardous area and given medicalassistance immediately.

Safety Alerts

WARNINGCalifornia Proposition 65 Warning: TheAPU and CCU components of this productcontain lead, a chemical known to theState of California to cause cancer andbirth defects and other reproductive harm.

FUEL/ BATTERIESExercise extreme caution when working near fuel or fuel-filled equipment. Do not operateequipment during fueling operations. Use eye protection when working near batteries,which contain acid and can explode. Do not smoke or use open flames near batteries.

Safety Considerations

30-G86-57 Rev-B

SafetyELECTRICALElectric shock can cause severe personal injury, burns, and death. Before working on anyunit, disconnect the batteries. Use only approved materials and methods when working onthe electrical system, and follow local electrical codes. Never work on the APU or theelectrical circuitry when the APU is running. Never work with electricity in wet conditions.

TOXIC SUBSTANCESFuel, oil, coolant, and refrigerant are toxic and in some cases, carcinogenic. Wear eye andhand protection at all times. Remove contaminated clothing immediately and wash con-taminated skin. Do not breathe in vapors.

HOT OR MOVING PARTSMoving parts can cause severe injury and/or death. Before working on any unit, shut it offand disconnect it from the truck batteries. Do not start until protective covers have beenreplaced. Also, loose parts and tools falling into machinery can cause severe accidents.Always ensure bolts and clamps are correctly torqued and secured. Inspect mechanicalcomponents periodically for damage, corrosion, and proper torque.

MISUSEThe APU is designed to provide electrical power and power for heating and cooling vehiclesin normal on-road conditions. Never use the APU to power critical medical equipment orsensitive electronic equipment without the manufacturer's express written approval.

Safety Considerations(cont.)


WARNINGDO NOT open the APU enclosure when theAPU is running. Moving parts inside theAPU can cause severe injury and/or death.DO NOT restart the APU until the covershave been replaced.

WARNINGDanger from moving parts. In order toperform these maintenance checks, you willhave to open the access covers to the APU.Before doing so, shut off the APU anddisconnect it from the truck batteries. Neverobserve the inside of the APU enclosureor insert your fingers or a tool into theenclosure when the APU is running.

CAUTIONDO NOT open the CCU enclosure. There areno operator-serviceable parts inside.

WARNINGDO NOT start the APU when the enclosurecover is removed. Operating with thecover off may result in injury and/or death.

WARNINGWhen the APU is about to start, a buzzersounds. Make sure no one is standingnear the APU or touching it.

WARNINGOnce Automatic functions are set the systemcould start at anytime. Before servicing theunit be sure to disconnect the unit from thebatteries to prevent injury should the unitattempt to start while servicing. All presetswill remain once battery cable is reconnected.

CAUTIONIf you are not qualified to perform thespecified check or the requiredmaintenance task, consult your dealerabout servicing.

SafetyWarnings/CautionsMUST be observed

Components

115V SHOREPOWER PLUG

BATTERY CHARGER

SHORE POWERMANAGER

DRIVER CONTROL PANEL (DCP)

CLIMATE CONTROLUNIT (CCU)

VEHICLE FUEL TANK

CONDENSER

AUXILIARY POWER UNIT (APU)

BATTERY

115 VACRECEPTACLE PANEL

FUEL SUPPLYAND RETURN

COOLANT SUPPLYAND RETURN

The main components of the ComfortPro are the Auxiliary Power Unit (APU), the ClimateControl Unit (CCU) and the Driver Control Panel (DCP).

Note: In this manual, the term DCP refers generically to all models of Driver Control Panel,including DCP, DCP2, etc.

Optional Shore Power

PAGE 8 30-G86-57 Rev-B

ComponentsAPU (Auxiliary Power Unit) The APU (Auxiliary Power Unit) is mounted on the frame rail of your truck. It consists of an

engine and belt driven generator. The engine draws fuel from your truck's fuel tank andruns like a normal small diesel engine, independent of your truck's main engine.

The APU provides power to the CCU (see page 10). The APU is plumbed into your truck'scoolant system. In this way, when the APU is running, the APU provides heat to your truckengine, and when the truck engine is running, the truck provides heat to the APU. The APUis connected to the truck's batteries; it uses the batteries to start its engine and the APUengine's alternator charges the batteries.

Simple maintenance and inspection such as checking oil level, belt tensions and generalcleanliness can be performed by removing the upper and lower access panels. Turn off theAPU, unscrew the handwheel bolts and carefully remove either access cover.

WARNINGDo not open the APU enclosure when theAPU is running. Moving parts inside theAPU can cause severe injury and/or death.Do not restart the APU until the covershave been replaced.

WARNINGDanger from moving parts. In order toperform these maintenance checks, you willhave to open the access covers to the APU.Before doing so, shut off the APU anddisconnect it from the truck batteries. Neverobserve the inside of the APU enclosureor insert your fingers or a tool into theenclosure when the APU is running.


HVAC System The HVAC System consists of the following components:

• The CCU (Climate Control Unit), which provides heat and air conditioning to the truckbunk. This unit is typically installed underneath the bunk.

• Three air ducts in the truck bunk, connected to the CCU.• The condenser is mounted on the outside of the truck and is connected to the CCU.

CONDENSERCCU

CAUTIONDo not open the CCU enclosure. There areno operator-serviceable parts inside.

Power Outlet A power outlet, which is mounted inside the truck bunk, provides 15A to power 115 VACappliances.

Components

PAGE 10 30-G86-57 Rev-B

ComponentsDCP (Driver Control Panel)

APUON/OFF

HVACOFF

ESC/RESETMENU

A/C FAN HEAT

HOURS00000 APU SP

1

2

3

4 5 6 7 8 9 10 11

T2T1

The DCP (driver control panel), which is mounted inside the truck bunk, controls the APU andthe CCU. The central panel on the DCP provides status information using words and icons:

30-G86-57 Rev-B PAGE 11

ComponentsDCP (Driver Control Panel)(cont.)

1. When visible, the heating system is heating.

2. When visible, the A/C is cooling.

3. Indicates the number of operating hours on the APU.

4. Indicates the state of the APU.

The APU engine is running.

The APU engine is off.

The APU engine is in the starting process (flashing).5. Indicates that Battery Monitor mode is enabled.

6. Indicates that maximum run time is enabled.

7. Indicates that Temp Start mode is enabled.

8. Indicates that Comfort Monitor mode is enabled.

9. Indicates that Timer 1 or Timer 2 mode is enabled.

10. Indicates that the ComfortPro is connected to shore power. The APU cannot bestarted in Shore Power mode.

11. Indicates the state of the 115V outlet and CCU auto-reset breakers.115 VAC power is being supplied to the outlet.No power is being supplied to the outlet.Outlet breaker has tripped.High Heat breaker has tripped.The breaker that tripped has reset automatically and the DCP needs to be reset.

APU

SP

T2T1

TRIP

RE-SET

TRIP

APU

APU

OFF

PAGE 12 30-G86-57 Rev-B

How ComfortPro OperatesThe ComfortPro has two modes of operation: manual and automatic.

You start the APU from within the truck bunk using the On/Off button on the driver controlpanel (DCP). Once the APU is running, you can start and stop the fan, heater and airconditioning using the DCP. See page 19.

Once the heater or A/C is running, it will cycle (automatically turn on and off) in order tokeep the truck bunk at the temperature you specify. The HVAC will continue to cycle untilyou turn it off. While the HVAC is cycling, the APU remains on and will only turn off whenyou manually turn it off using the button on the DCP.

Note that in manual mode, the APU remains on until you turn it off. But in Comfort Monitormode (described below), the APU automatically turns off and on as required.

When the APU is running, power is supplied to the power outlet in the truck bunk (exceptin high heat).

In manual mode, the APU will turn off automatically if the Maximum Run Time is reached.

Manual Mode

30-G86-57 Rev-B PAGE 13

How ComfortPro OperatesThe ComfortPro has several functions that will start it in automatic mode

Automatic Mode

Comfort Monitor(page 27)

FEATURE DESCRIPTION

Comfort Monitor is intended to maintain the truck cabin temperatureat a desired set point by cycling both the APU and HVAC on and off asrequired. While operating in Comfort Monitor mode, the HVAC willonly operate at high output settings, i.e. either High Heat or High A/C.

MENU ITEMS AND PASSWORD PROTECTION

Comfort Monitor is one of the main items in the DCP/DCP2 menutree and may be password protected independently of the other mainmenu items. Within the Comfort Monitor menu, three settings areavailable:ON/OFF: Allows the user to enable or disable the Comfort Monitorfeature.

Note: Comfort Monitor Mode and Manual APU operation aremutually exclusive, i.e.An ON setting enables CM mode & disables Manual APU operation.An OFF setting disables CM mode & enables Manual APU operation.

SET DURATION: Allows the user to set the maximum session timethat the APU can remain in Comfort Monitor mode. The durationtimer may be set between 0.0 HRS to 24.0 HRS in increments of0.5 HRS.

Note: A duration setting of 0.0 HRS will restore the earlier ComfortMonitor functionality. In this configuration, Comfort Monitor cannotbe de-activated by the operator. Comfort Monitor can only be enabledvia the menu settings (typically subject to password protection).

PAGE 14 30-G86-57 Rev-B

How ComfortPro Operates

Comfort MonitorCont.(page 27)

FEATURE DESCRIPTION

Specifically: The operator cannot activate / de-activate ComfortMonitor using the ON/OFF key (see below). The CM icon staysvisible on the display.When used with an engine interlock, Comfort Monitor operationwill automatically re-activate when the main engine is turned off.The CM icon disappears while the main engine is running.The operator has the ability to enter and exit manual mode.

SET TEMP:Allows the user to set the desired ambient temperature in therange from 18°C (64°F) to 30°C (86°F).

COMFORT MONITOR OPERATION

APU ON/OFF key

With Comfort Monitor enabled and its duration timer set to a non-zero value in the menu, the APU ON/OFF key may be used toactivate / de-activate Comfort Monitor mode.

Duration TimerThe Comfort Monitor session duration timer begins countingdown from its set value each time that Comfort Monitor mode isactivated via the APU ON/OFF key. When the timer has elapsed,Comfort Monitor mode will de-activate. The driver may re-activate

30-G86-57 Rev-B PAGE 15

Automatic Mode (cont.)

Comfort Monitor for a new session if desired by pressing the APUON/OFF key.

Note: The intent is that the driver should de-activate ComfortMonitor when leaving the truck for a period of time in whichcomfort monitor is not required. If Comfort Monitor is notmanually de-activated, it will continue to operate until theduration timer has expired.

Other Control Panel KeysThe MENU, ESC/RESET and ARROW keys may continue to be usedfor accessing and navigating the menu. The balance of front panelkeys, including HVAC OFF, A/C, FAN, and HEAT, have no associatedfunctionality while the system operates in Comfort Monitor.Additionally the ARROW Keys may not be used to adjust thetemperature set point.

APU InterlockThis applies only to APUs equipped with main engine interlocks. Ifthe APU has Comfort Monitor enabled, and the main engine interlockactivates to signal that the main engine has started and is running,then Comfort Monitor will be de-activated. Additionally, ComfortMonitor cannot be activated with an active engine interlock.If desired, the driver may re-activate Comfort Monitor for a newsession by pressing the APU ON/OFF key, but only after the mainengine interlock has de-activated, i.e. the main engine has shut off.

FEATURE DESCRIPTION


How ComfortPro OperatesAutomatic Mode (cont.)

PAGE 16 30-G86-57 Rev-B

Other Automatic Modes

If enabled in the menu, other automatic modes may become activewhile the APU operates in Comfort Monitor mode. Activation of anyof the other automatic modes will temporarily override ComfortMonitor, however APU operation will return to Comfort Monitormode if all automatic mode duration timers have expired but theComfort Monitor duration timer has not expired.

FEATURE DESCRIPTION


How ComfortPro Operates

Timer(page 30)

At the specified time, the APU and HVAC automatically turn on.During the specified timer duration, the HVAC cycles on and off tomaintain the desired temperature. When the timer duration expires,both the APU and HVAC turn off automatically and remain off.

Temp Start(page 34)

The APU and heater on the HVAC automatically turn on in order toprevent the APU engine and truck engine from getting too cold.(Turning on the heater creates a “load” that makes the APU workharder and therefore warm up faster). Both the APU and HVACturn off automatically after the specified time.

The APU automatically turns on for 90 minutes in order torecharge the batteries. The HVAC does not turn on.

Battery Monitor(page 39)

Automatic Mode (cont.)

30-G86-57 Rev-B PAGE 17

30-G86-57 Rev-B

Other Functions

There are icons on the DCP that flash when the APU and HVAC are running. See page 11. Ifyou enter the truck bunk and APU or HVAC is on but you did not start it, you can assume ithas started in one of the automatic modes, as described above. On the DCP, one icon willbe flashing steadily: this is the icon for the mode that is currently operating.Whenever the ComfortPro is running in an automatic mode, (except for Comfort Monitormode), if you then press the heat, A/C or fan buttons on the DCP, the ComfortPro will switchto manual mode. The APU will not automatically turn off! This icon on the DCP will alsostop flashing. When the ComfortPro is operating in Comfort Monitor mode manual APUoperation is locked out.

AUTOMATIC MODE AND MINIMUM TIME OFFAll these automatic functions work on a "minimum time off": the ComfortPro must be off forat least 10 minutes before the automatic function will turn it on again. For example, theTimer function may be set to turn on the ComfortPro at 10:00 a.m. You have been runningthe ComfortPro in manual mode. You turn off the ComfortPro at 9:55 a.m. The timer willonly turn on the ComfortPro again 10 minutes later, at 10:05 a.m.

CLOCKIn order to use the Timer correctly, you must set the DCP clock. See page 26.

MAXIMUM RUN TIMEYou can set the maximum time that the APU is allowed to continuously run in manualmode. See page 37.

PASSWORD PROTECTIONYou can add a password to the DCP, then you can protect one or more functions so thatonly a person who knows the password can set the function. See page 23.

How ComfortPro OperatesAutomatic Mode (cont.)

30-G86-57 Rev-B PAGE 19

Manual OperationsStarting the APU"One Touch Start"

Press .

The APU will stop. The display shows .

Make sure to shut down HVAC beforestopping APU!

APU

HOURS00000 APU

PLEASE WAIT

APU STARTING

OFFOFF

HOURS00000 APU OFF

Stopping the APU

WARNINGDo not start the APU when the enclosurecover is removed. Operating with thecover off may result in injury and/or death.

Press and release once.

The display shows "PLEASE WAIT – APUSTARTING" and flashes. Whenstops flashing, then the APU has startedsuccessfully.

The APU startup sequence consists of 20seconds of glowing (30 seconds when theambient temperature is below -5°C or 23°F)and up to 10 seconds of cranking.

If the sequence fails, "RESTARTING"appears for six seconds. Then the startupsequence automatically repeats up to fivetimes or until the APU starts.

If "CRANK LIMIT" appears, seeTroubleshooting section.

APUAPU

HOURS00000 APU

RESTARTING

OFFOFF

HOURS00000 APU

CRANK LIMIT

OFFOFF

WARNINGWhen the APU is about to start, a buzzersounds. Make sure no one is standingnear the APU or touching it.

Manual OperationsTurning the HeaterON or OFF

1. Press to activate the heater.

The display shows "HEAT LOW".

The heater will turn on only if thetemperature is too low (to adjust thetemperature, see below). When theheater is on, appears.

2. Press again to switch betweenhigh and low heat to heat the truck bunkmore or less quickly. In "HEAT HIGH"mode, the power outlet is disabled andthe display indicates .The heat or A/C will turn off when thedesired temperature is reached.

3. Press to deactivate heating.

OFF

HOURS00000 APU

C HHEAT HIGH

OFF

HOURS00000 APU

C HHEAT LOW

Press or when the heater ison ("HEAT LOW" or "HEAT HIGH" shows).

The notch on the temperature bar moves.The heater will automatically turn on and offto maintain this temperature.

Heating: Setting theTemperature

NOTICEThe heat mode will not function if thetemperature is higher than 85°F.

PAGE 20 30-G86-57 Rev-B

Manual Operations

1. Press to activate the A/C.

The display shows "A/C LOW".

The A/C will turn on only if thetemperature is too high (to adjust thetemperature, see below). When the A/Cis on, appears.

2. Press again to switch betweenhigh and low A/C to cool the truck bunkmore or less quickly.

3. Press to deactivate the A/C.

Turning the HeaterON or OFF

C HA/C LOW

HOURS00000 APU

C H

HOURS00000 APU

A/C HIGH

Press or when the A/C is on("A/C LOW" or "A/C HIGH" shows).

The notch on the temperature bar moves.The A/C will automatically turn on and off tomaintain this temperature.

A/C: Setting the Temperature

NOTICEThe air conditioning function will not operateif the temperature is lower than 65°F.

30-G86-57 Rev-B PAGE 21

Manual Operations

Press to toggle between low, highand off.

The speed of the fan may automaticallychange when the heat or A/C comes on,then automatically change back when theheat or A/C goes off.

Fan Operation

You can still have the fan working evenwhen the temperature is not low or highenough for the heat or A/C to come on.

The fan operation is independent of the airconditioning and heat modes. When the fanspeed is manually set to high or low, the fanwill return to that setting when the desiredtemperature has been reached as the airconditioning or heat cycles off.

HOURS00000 APU

C H

FANLOW

C H

FANHIGH

HOURS00000 APU

PAGE 22 30-G86-57 Rev-B

Automatic OperationsSETTING UP FOR PASSWORD PROTECTION

1. Press .

2. Press or until"SET/CHANGE PASSWORD" is displayed,then press .

"ENTER PASSWORD" is displayed withthree blank squares, one for each digit inthe password. The first digit flashes.

3. Press or until the firstnumber in the password is displayed.For example, if your password is "432"press until "4" shows, thenpress .

4. Repeat for each digit in the password.

5. Press again after entering thelast digit."NEW PASSWORD" is displayed.

6. Repeat the above steps to enter thenew password. "CONFIRM" is displayed.

7. Enter the new password again, thenpress to exit this function.

Password Protection

You can add a password to the DCP,then you can protect one or more functionsso that only a person who knows thepassword can set the function.

On a newly installed DCP, the password isalways 000, which means that no passwordprotection is in place.

To password-protect functions, first changethe factory password; see 'Setting up forPassword Protection'. All functions will nowbe password protected. Then removepassword protection from chosen functions,as desired; see 'Protect Functions with aPassword'.

If you know the password, you can change itat any time, if you need to. Note that if youchange the password to 000, you will removepassword protection from all functions.

If the password is ever lost, contact yourdealer to have the password reset to 000.

ENTER PASSWORD

OFF

000

OFFHOURS00000 APU

WARNINGOnce Automatic functions are set the systemcould start at anytime. Before servicing theunit be sure to disconnect the unit from thebatteries to prevent injury should the unitattempt to start while servicing. All presetswill remain once battery cable is reconnected.

30-G86-57 Rev-B PAGE 23

Automatic OperationsPassword Protection (cont.) PROTECT FUNCTIONS WITH A PASSWORD

1. Press .

2. Press or until"PASSWORD PROTECT" is displayed,then press .

If this menu item does not appear, thenyou have not yet changed the factorypassword from 000. Change thepassword and then try again.

"ENTER PASSWORD" is displayed withthree blank squares, one for each digit inthe password. The first square flashes.

3. Press or until the firstnumber in the password is displayed,then press .


5. Press again after entering thelast digit.

The first feature that can be passwordprotected is displayed with "YES" or "NO"(indicating whether it is currentlypassword protected).

HOURS00000 APU OFF

PASSWORDPROTECT

OFF

PAGE 24 30-G86-57 Rev-B

Automatic Operations

6. Press or to change the"YES" or "NO".

7. Press to move to the next feature.

Or press or to skip to thenext feature.

Password Protection (cont.)

Entering The Password When you try to set up a function, you maybe prompted to enter the password.

1. Press or until the firstnumber in the password is displayed,then press .


3. Press again after entering thelast digit.

30-G86-57 Rev-B PAGE 25

Automatic Operations

1. Press .

2. Press or until"CLOCK" is displayed, thenpress .

If "ENTER PASSWORD" is displayed,enter your password. If you do notknow the password, then you cannotset up this function (see page 23).

The clock function takes you throughseveral settings: 12/24-hour-clock,hour set, minutes set, am/pm-set (for12-hour clock only), and day of week.

3. Press or to changethe setting.

4. Press to move to the nextsetting.

Or press to cancel any changesyou have not yet accepted.

5. When done, press to exit.

Setting the Clock

You can set the clock on the DCP. This clockis used by the Timer function (page 30). Ifyou use the Timer function, remember thatas you move from one time zone to another,you must adjust the clock. Otherwise theTimer will start the APU at the wrong time.

The clock does not automatically adjust fortime zone changes; you must adjust it.

The clock settings remain even when theAPU is turned off.

CLOCK

HOURS00000 APU

CLOCK: SET MODE

OFF

12 HOUR

OFFHOURS00000 APU

PAGE 26 30-G86-57 Rev-B

Automatic OperationsComfort Monitor

You can specify the temperature you want inthe truck bunk. Whenever the truck bunktemperature goes 2° above or below thistemperature, the APU starts and the HVACturns on until that temperature is reached orfor fifteen minutes, whichever is longer.

ENABLING COMFORT MONITOR

1. Press .

2. Press or until"COMFORT MONITOR" is displayed,then press .


3. Press or to display"ON" or "OFF".

4. Press to confirm this setting.

The current setting remains until youchange it; turning off the APU ormanually starting the APU does notpermanently cancel this setting.

COMFORT MONITOR:

ON

HOURS00000 APU

30-G86-57 Rev-B PAGE 27

Automatic OperationsComfort Monitor (cont.) SETTING THE COMFORT MONITOR TEMPERATURE

COMFORT MONITOR

SET TEMP

HOURS00000 APUNOTICE

Factory Default Temperature Setting is21°C / 70°F. Range is 18°C / 64°F to30°C / 86°F.

1. Press .



3. Press or to display"SET TEMP".

4. Press to confirm this setting.The current temperature is displayed.

5. Press or to scroll to thedesired temperature.


or

Press to cancel and retain thecurrent temperature.

7. Press to exit.

PAGE 28 30-G86-57 Rev-B

Automatic OperationsComfort Monitor (cont.) SETTING THE DURATION IN COMFORT MONITOR

COMFORT MONITOR

SET DURATION

HOURS00000 APUNOTICE

Factory Default Duration Setting is 8 hours.Range is 0 hours to 24 hours (in 0.5 hourincrements).

1. Press .



3. Press or to display"SET DURATION".

4. Press to confirm this setting.The current duration is displayed.

5. Press or to scroll to thedesired duration.


or

Press to cancel and retain thecurrent duration.

7. Press to exit.

30-G86-57 Rev-B PAGE 29

Automatic OperationsTimer

You can set up the ComfortPro so that theAPU and CCU run automatically for a specifiedtime on specified days of the week. There aretwo timers, so you can set up two schedules.

For example, one schedule may be to runevery day at 6:00 p.m. for .5 hours and theother schedule may be to run every Mondayat 6.00 a.m. for .5 hours.

You must set up the timer as follows:Specify the day and time you want theAPU to run, specify the duration (the lengthof time you want the APU to run for)and specify the temperature you wantmaintained in the truck bunk while the APUis running.

TURNING TIMER ON OR OFF

1. Press .

2. Press or until"TIMER 1" or "TIMER 2" is displayed,then press .




The current setting remains until youchange it; turning off the APU ormanually starting the APU does notcancel the timer function.

OFF

ON

OFFHOURS00000 APU

TIMER 1

T1

PAGE 30 30-G86-57 Rev-B

Automatic OperationsSETTING THE START TIME/DAY

1. Press .



3. Press or to display"SET START".


The current start time is displayed.

5. Press or to set thehours, minutes and day.

6. Press to confirm each setting.

Timer (cont.)

TIMER 1

OFF

SET START

OFFHOURS00000 APU T1

30-G86-57 Rev-B PAGE 31

Automatic OperationsSETTING THE DURATION

1. Press .





The current duration time is displayed.

5. Press or to scroll to thelength of time to run the APU.


Or press to cancel and retainthe current duration.

7. Press to exit.

Timer (cont.)

TIMER 1

OFF

SET DURATION

OFFHOURS00000 APU T1NOTICE

Factory Default Duration Setting is 1 hour.Range is 0.5 hrs - 10 hrs (in 0.5 hrincrements).

PAGE 32 30-G86-57 Rev-B

Automatic OperationsTimer (cont.) SETTING THE TEMPERATURE FOR THE TIMER

TIMER 1

OFF

SET TEMP

OFFHOURS00000 APU T1

NOTICEFactory Default Temperature Setting is21°C / 70°F. Range is 18°C / 64°F to30°C / 86°F.

1. Press .

2. Press or until"TIMER 1 or TIMER 2" is displayed,then press .



4. Press to confirm this setting.The current temperature is displayed.

5. Press or to scroll to thedesired temperature.


Or press to cancel and retainthe current temperature.

7. Press to exit.

30-G86-57 Rev-B PAGE 33

Automatic OperationsTURNING TEMP START ON AND OFFTemp Start

You can set up the APU so that itautomatically runs for a specified timewhenever the ambient temperature goesbelow a specified value. This feature ensuresthat the APU engine and truck engine do notget so cold that they will not start.

This feature is not intended to maintain acomfortable truck bunk temperature;instead, see “Comfort Monitor”.

TEMP START

OFF

ON

OFFHOURS00000 APU

1. Press .

2. Press or until"TEMP START" is displayed, thenpress .





PAGE 34 30-G86-57 Rev-B

Automatic OperationsTemp Start (cont.) SETTING THE START TEMPERATURE

1. Press .




4. Press to confirm this setting.The current start temperature isdisplayed.

5. Press or to scroll to thedesired start temperature.


Or press to cancel and retainthe current start temperature.

7. Press to exit.

TEMP START : SET TEMP

OFF

-10C 14F

OFFHOURS00000 APUNOTICE

Factory Default Temperature Setting-10°C / 14°F. Range is -20°C / -4°F to5°C / 41°F.

30-G86-57 Rev-B PAGE 35

Automatic OperationsSETTING THE DURATION

1. Press .




4. Press to confirm this setting.The current duration is displayed in hours.

5. Press or to scroll to theamount of time you want the APU to runbefore automatically shutting off.


Or press to cancel and retain thecurrent start temperature.

7. Press to exit.

Temp Start (cont.)

TEMP START : DURATION

OFF

1.0 hrs

OFFHOURS00000 APU

TEMP START

OFF

SET DURATION

OFFHOURS00000 APUNOTICE

Factory Default Duration Setting is 2 hours.Range is 1 hr to 4 hrs.

PAGE 36 30-G86-57 Rev-B

Automatic OperationsMaximum Run Time

You can set the maximum time that the APUis allowed to run continuously. If the APUruns for longer than the specified time, itautomatically shuts off. You can then start itmanually, if desired; the "run time" clock willstart counting again.

TURNING MAXIMUM RUN TIME ON OR OFF

1. Press .

2. Press or until"MAXIMUM RUN TIME" is displayed,then press .




MAXIMUM RUN TIME

ON

HOURS00000 APU

NOTICEFactory Default Run Time Setting is 8hours. Range is 2 to 24 hours.

30-G86-57 Rev-B PAGE 37

Automatic OperationsMaximum Run Time (cont.) SETTING THE DESIRED RUN TIME

1. Press .

2. Press or until"MAXIMUM RUN TIME" is displayed,then press .


3. Press or to display "SET".


The current duration is displayed.

5. Press or to scroll to thedesired number of hours.


Or press to cancel and retainthe current duration.

7. Press to exit.

MAXIMUM RUN TIME

SET

HOURS00000 APU

PAGE 38 30-G86-57 Rev-B

Automatic OperationsBattery Monitoring

You can set up the APU so that itautomatically runs for 90 minutes when thetruck batteries are low.

When you set up this feature, you mustenter the current voltage of the batteries(see “Set the Initial Voltage”). TheComfortPro can then calculate how muchthe voltage drops, as the batteries are used.

SET THE INITIAL VOLTAGE

1. Press .

2. Press or until"CALIBRATE VOLTAGE" is displayed,then press .


3. Press or to set thecurrent voltage of the batteries.


HOURS00000 APU OFF

CALIBRATEVOLTAGE

OFF

30-G86-57 Rev-B PAGE 39

Automatic OperationsBattery Monitoring (cont.) TURNING BATTERY MONITORING ON AND OFF

BATTERY MONITOR

OFF

ON

OFFHOURS00000 APU

1. Press .

2. Press or until"BATTERY MONITOR" is displayed,then press .





PAGE 40 30-G86-57 Rev-B

Automatic OperationsBattery Monitoring (cont.)

The APU starts if the battery voltage goesbelow the level you specify here.

SETTING THE VOLTAGE LEVEL

1. Press .

2. Press or until"BATTERY MONITOR" is displayed,then press .


3. Press or to display "SET".


The current voltage level is displayed andflashes.

5. Press or to scroll to thedesired voltage.


Or press to cancel and retain thecurrent voltage.

7. Press to exit.

MENU

BATTERY MONITOR : SET

OFF

11.8 V

OFFHOURS00000 APU

NOTICEFactory Default Voltage Setting is 11.8V.Range is 11.0V to 13.5V.

NOTICEAPU will not start until battery voltage hasbeen below the specified level for 10 minutes.

30-G86-57 Rev-B PAGE 41

Inside the APU Enclosure

DC POWER FUSE12V, 20 AMP

OIL DIPSTICK

OILFILTER

FUELFILTER

INLINEFUEL

FILTER

AIR FILTER

APUCONTROLLER

GENERATOR BELT

APUENCLOSURE

BOLTS (8)

IN-LINE FUEL FILTER ALTERNATOR BELT

OILDRAINPLUG35A BREAKER

Consult this diagram to perform the checks described in the following pages.

PAGE 42 30-G86-57 Rev-B

Maintenance ScheduleThis schedule lists the maintenance tasks that must be performed, and the maximum interval between checks.Environmental conditions may require increased shorter periods between checks.Important: Change engine oil and the oil filter cartridge after the first 50 hours of operation.A repair shop or person of the owner’s choosing may maintain, replace, or repair emission-control devices and systems.For a list of spare parts contact your dealer.

WARNINGDanger frommoving parts. In order toperform these maintenance checks, you willhave to open the access covers to the APU.Before doing so, shut off the APU anddisconnect it from the truck batteries. Neverobserve the inside of the APU enclosure orinsert your fingers or a tool into theenclosure when the APU is running.

WARNINGDo not open the CCU enclosure. There areno operator-serviceable parts inside.

CAUTIONIf you are not qualified to perform thespecified check or the requiredmaintenance task, consult your dealerabout servicing.

NOTICEOnce a year contact your dealer to arrange for a tune up of the CCU. This tune up preparesthe CCU for the air conditioning season and should therefore be performed in the spring.

30-G86-57 Rev-B PAGE 43

Maintenance ScheduleFirst Every

Interval between checks (in hours of operation) 50 hrs 1000 hrs 2000 hrs 3000 hrsChange oil and oil filter x xCheck fuel hoses, fuel pipes, and clamps x xCheck fasteners, muffler clamps and frame grippers x xCheck battery cable connections x xCheck coolant hoses and clamps x xCheck all belts for tension, alignment & condition, and adjust as required x xCheck APU air filter, clean or replace as necessary xChange fuel filters xChange alternator belt regardless of condition xAdjust valve lash xClean inside enclosure xClean radiator fins xClean condenser fins xCheck fuel hoses and clamps for abrasion and damage. Change as necessary xCheck CCU air filter, clean or replace as necessary. To clean, remove themesh filter and vacuum or wash (soap and water). Shake dry and reattach. xCheck injection nozzle opening pressure xCheck injection pump timing xCheck water pump performance xCheck alternator performance xCheck starter performance xCheck air conditioning performance (HVAC) xCheck heater performance (HVAC) xCheck generator line voltage xCheck coolant hoses and clamps (from APU to main engine) xCheck engine thermostat xCheck air intake hose and clamps on APU xChange generator belt regardless of condition x

PAGE 44 30-G86-57 Rev-B

CAUTIONIf you are not qualified to perform the work required for the suggested solution pleaseconsult your dealer about servicing.

WARNINGDanger from moving parts. In order to perform some troubleshooting tips, you will haveto open the access covers to the APU. Before doing so, shut off the APU and disconnectit from the truck batteries. Never observe the inside of the APU enclosure or insert yourfingers or a tool into the enclosure when the APU is running.

WARNINGDo not open the CCU enclosure. There are no operator-serviceable parts inside.

Troubleshooting

30-G86-57 Rev-B PAGE 45

Troubleshooting

Check APU Engine Open the access cover on the APU (not theenclosure covers) and read the LED on theAPU controller located at the back of theenclosure (you will need a flashlight to dothis).There are three LEDs (lights) towards thebottom of the controller. A red LEDindicates a possible problem. The LEDs are:• Oil: there may be a problem with the oil

pressure.• Temp: there may be a problem with the

coolant temperature.• Alt F/B (Alternator feedback): there may

be a problem with the alternator.

If the Oil LED is red, check the oil level inthe APU.If the Temp LED is red, check the coolantlevel.If the Alt FB LED is red, check that thealternator belt is loose or broken. Contactthe dealer if belt is broken.

MESSAGE POSSIBLE CAUSE SOLUTION

HVAC breaker The HVAC breaker has tripped. Wait for the display to change to .Then press .If the breaker does not automatically resetor if the problem recurs, contact the dealer.

RE-SET

A

Crank Limit The truck tank is out of fuel. Check the fuel level. If this is not theproblem consult the dealer.

Messages on the DCP

PAGE 46 30-G86-57 Rev-B

TroubleshootingMESSAGE POSSIBLE CAUSE SOLUTION

HVAC breaker – press reset The HVAC breaker tripped and has alreadyreset itself. Press . If the problem recurs, contact

the dealer.

Main Engine Interlock The main engine interlock option is installed(see page 3) and you have tried to start theAPU and either:• The truck engine is running. You cannot

turn on the APU when the truck engine isrunning.

• The truck engine is not running, but theAPU thinks it is running because of aground fault.

If there is a ground fault, it will be in theAPU controller or in the internal harness.Contact the dealer.

The heater is on “HEAT HIGH”. This iconalways appears when the heat is on high,and tells you that no power is being suppliedto the power outlet. This is normal operation.

If the heater is not on high heat, theproblem may be that the main breaker atthe generator has tripped.

If you need to use the power outletimmediately, turn the heat to low.

Reset the breaker at the generator in theAPU enclosure. The indicator shouldchange to .

Do not operate too many appliances at onetime.

30-G86-57 Rev-B PAGE 47

TroubleshootingMESSAGE POSSIBLE CAUSE SOLUTION

The power outlet breaker has tripped.When the heat is not on high, the poweroutlet is useable. You may be overloadingthe outlet, for example, using two powerfulappliances.

• Wait for the display to change to .Then press .

• Do not use two appliances at the sametime.

• If you were only using one appliancewhen the breaker tripped, there may bean electrical problem. Stop operating theheat at the high setting until you canhave the problem checked.

• If the breaker does not automaticallyreset or if the problem recurs, there maybe a problem with the CCU. Contact thedealer.

RE-SET

A

The high heat breaker has tripped. Wait for the display to change to . Thenpress .If the breaker trips again, stop operating theheat at the high setting until you can havethe problem checked.

RE-SET

A

PAGE 48 30-G86-57 Rev-B

TroubleshootingOther Troubleshooting

APU engine won’t start The truck is connected to shore power. Youcannot start the APU when shore power isconnected.

You will be able to start the APU whenshore power is disconnected.

SYMPTOM PROBABLE CAUSE SOLUTION

APU shuts down on its own The APU may have been running inautomatic mode, and has reached the pointin its cycle to automatically shut down.

If you want the APU to remain on, simplystart it again from the DCP.

APU engine won’t crank Low battery.Poor battery connection.No power to DCP.

Faulty starter.

Charge batteries.Clean the cable connections at the batteries.Check the 20 amp fuse on the APUcontroller, at the back of the APU enclosure.(You will need a flashlight to do this.)Contact the dealer.

APU engine cranks but won’t start No fuel.Fuel filter plugged.Air in fuel system.Fuel solenoid won’t pull.Glow plugs not working.Plugged air filter.

Check fuel in tank.Change filter.Check fuel lines for cracks or leaks.Contact the dealer.Contact the dealer.Change filter.

30-G86-57 Rev-B PAGE 49

Troubleshooting

APU engine runs but then stops. Messageon DCP ‘Check APU Engine’.

Low oil.Temp coolant.

Alternator feedback.

Check oil level.Check coolant level.Check coolant hoses for restriction.Check fan belt.Check shut off valves.If the problem is with the coolant pump,contact the dealer.Contact the dealer.

SYMPTOM PROBABLE CAUSE SOLUTION

Blue exhaust smoke from APU engine.

White exhaust smoke from APU engine.

Excessive engine oil.

Coolant in combustion chamber.Incorrect timing.

Reduce to specified level see Specifications.

Contact the dealer.Contact the dealer.

Black or dark grey smoke from APU engine. Air cleaner clogged. Change air cleaner.

The APU Timer function is starting the APUlater (or earlier) than the programmed time.

You may have moved into a different timezone and you forgot to adjust the DCPclock, which controls the timer. The timer isstill using the time in the old time zone.

Set DCP clock to correct time.

PAGE 50 30-G86-57 Rev-B

TroubleshootingSYMPTOM PROBABLE CAUSE SOLUTION

No 115VAC at power outlet in truck bunk 35amp breaker tripped.

Generator belt loose.

Reset the breaker at the generator in theAPU enclosure. If the problem recurs,contact the dealer.Tighten or replace, as per service manual.

HVAC: the air conditioner continually shutsitself off

The winter cover may be on the condenser.The cover is not intended for use when theair conditioner is being used.

Remove the winter cover from thecondenser.

No 12VDC at DCP 20 amp fuse blown. Replace the 20 amp fuse on the APUcontroller, at the back of the APU enclosure.If the problem recurs, contact the dealer.

30-G86-57 Rev-B PAGE 51

Specifications

Engine . . . . . . . . . . . . . . . . . 13.9 hp Kubota, 2 cyl, 479cc (model Z482)

Engine Oil . . . . . . . . . . . . . . 3.5 US Qts (3.3L)You can use any API Service CF, CF-4, CG-4 orCH-4 oil and any SAE Viscosity (or weight) of oil.Consult the table on the following page.

Engine Drain Plug . . . . . . . . Torque 23 ft-lb to 27 ft-lb

Alternator . . . . . . . . . . . . . . 60 Amps @ 14.2 Volts DC

Generator . . . . . . . . . . . . . . 6000 Watts rated, 60Hz @ 120 Volts AC

Dimensions (h/w/l) . . . . . . . 28.5” x 25” x 18.5”

Air Conditioner . . . . . . . . . 12000 BTU/hr hermetic compressor

System capacity . . . . . . . 50–55 oz of R134A

System Oil capacity . . . . 14 oz of PVE (polyvinylether)

Heat

Heater at low speed . . . . . . . 5,000 BTU/hr (1,500 watts)

Heater at high speed . . . . . . 10,000 BTU/hr (3,000 watts)

Dimensions (h/w/l) . . . . . . . 12.5” x 15” x 28”

Operating Range . . . . . . . . . Heat: 85°F and lower

AC: 65°F and higher

APU

CCU

PAGE 52 30-G86-57 Rev-B

Specifications

SINGLEGRADE

MULTIGRADE

243 253 263 273 283 293 303 313 323

-30 -20 -10 0 10 20 30 40 50

-22 -4 14 32 50 68 86 104 122

K

°C

°F

40

30

20

20W

10W

5W

5W20

5W30

10W30

15W40

20W50

AMBIENTTEMP

Engine Oil Selection Chart

30-G86-57 Rev-B PAGE 53

Recommended Service Actions: 1. Check the condenser for damage, leakage and/or contaminated fins that may restrict air flow.2. Check air ducting and outlets for damage and/or restrictions.3. Check electrical harnesses for tight connections and harness abrasions.4. Check the evaporator for:

• Intake filter cleanliness, clean if required.• Damaged and/or contaminated fins that may restrict air flow.

5. Check the refrigerant lines and connections for:• Abrasion and wear points.

Air Conditioning Spring Tune Up: See your local ComfortPro dealer for details.

CCU General Inspections

PAGE 54 30-G86-57 Rev-B

05-14© 2013 IMPCO Technologies Canada Inc. PID# 30-G86-57B

100 Hollinger CrescentKitchener, OntarioCanada N2K 2Z3Tel: 1-800-667-4275

Designed and Manufacturedin North America

www.impcotechnologies.com

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