Dometic AC-1351 General instructions

1
LITERATURE N U M B E R 15000
Rooftop Air Conditioner
for Recreational Vehicles
Non-Ducted Models
AC-1351 & AC-1501
•Installation •Operation •Maintenance
This air conditioner design has been certified by the Canadian
Standards Association for installation in recreation vehicles.
SERVICE CALLS & QUESTIONS
Location and phone numbers of qualified Service Centers
can befoundatourwebsitehttp:/www.dometic.com
WARNING: It is important that this installation
manual is read and understood before
installation. The unit must be installed by a
qualified service technician. Failure to properly
install the unit or attempting to modify it in any
way can be extremelyhazardous and may
result in propertydamage and personal injury
and will void the warranty.
BEFORE INSTALLATION
Ensure that the installation instructions have been
properly read and understood.
Installation must conform to Local wiring codes and
regulations or, in the absence of local codes, the
StandardonRecreationalVehicles, NFPA1192. and
NationalElectricalCode NFPA70.
DONOTattempttomodifyoraddcomponentstothe
installation procedure.
Thisequipmentmustonlybeservicedbyalicensed
refrigeration mechanic to maintain warranty
coverage.
If your installationvaries from themethodoutlined
please contact Dometic for specialty advice.
Dometic will not be held responsible for
problems relating to incorrect or improper
installation methods.
GENERAL INFORMATION
I. PURPOSE
ThisDometic AirCommandairconditioningunitis
designed forinstallation ontheroofof a recreational
vehicle to provide cooling with AC-1351 models and
cooling/heating with AC-1501 models.
-Theroofmustbecapableofsupportingtheweightofthe
unit which is 86lbs (39Kg).
-The absolute minimum thickness oftheroofmustnotbe
less than 1 inch (25mm).
-The maximum thickness of theroofmust not exceed
5 inches (125mm).
-Trimming of the ductwork and/or bolts may be necessary
depending on the roof thickness
It isimportant that theunit is installed properly and
according to the recommended guidelines.
II. ENSURING EFFECTIVE OPERATION
The effectiveness of the air conditioner is dependent on
several factorse.g. size and heat loadofthevehicle. When
an Dometic unit is installed,Dometic assumes that the
vehicle is wellinsulated with 1 inch (25mm) foam minimum
in all walls and roof, that the windows are of moderate size
(preferably double glazed) and the roof ventsare airtight
when closed. Other methods of reducing heat loadinclude:
-Closing all doors, hatches, windowsand blinds
-Position the vehicle so if porch is used, it will face the sun
and protect the windows from direct radiation.
-Turningoffappliancesthatmightincreasetheheatload
-Ensuring the vehicle is parked in a shaded position.
In periods of extreme high temperature it is recommended
to start the air conditioner earlier in the morning to greatly
improve its abilityto cope withtheexpected high heat load.
III. CONDENSATION
In areas of high humidity, the humid air within the RV will
cause “sweating”or condensation in parts of the unit as the
humid warm air contacts the colder air discharge system. If
this occurs please ensure the following:
-Closing all doors, hatches, windows and blinds to limit the
ingressofwarmhumidair
- Avoid running theinside fan on LOWorAUTO in such
conditions. Running thefan on HI fan speed will result in
higher airflow and reduce the tendency to have
condensation form.
DOMETIC CORPORATION
1120 North Main Street, Elkhart, IN 46514
Please Visit: WWW.DOMETIC.COM
Revision A, 2/20/19

2
INSTALLATION PARTS LIST
MAIN COMPONENTS
1) Dometic AirCommand
Rooftop Airconditioner
2) Roof Seal Gasket 2Pcs
3) Adapter
4) Extension Duct
5) Brace Assembly
6) Plenum
7) Plenum Filters x2
FITTINGS & FIXTURES
8) M8Bolts x 4
9) Hold Down Barsx4
10) Plenum Cover Screws x 4
11) Self Tapping Screws x 6
INSTALLATION POSITION
Minimum 1” clearance
from side grilles to any
obstruction
Minimum 8” clearance from
reargrillesto anyverticalface,
4” toany45 degreeface.

3
Unit Installation (Non-Ducted)
Before beginning, mark out the position of the
unit considering the following important
requirements:
- The air conditioner should be situated as
centrally as possible on the vehicle, to ensure
even air distribution.
- The front of the unit MUST face the direction of
travel; failure to follow this instruction will result in
damage to the condenser fans.
- If the vehicle is over 23’ in length, or has an
unusually high heat load (see General Operating
Information section regarding expectations about
insulation etc.), Dometic recommends 2 or more
units to cool effectively.
- When considering the installation position
remember to check for clearance around the
plenum inside the vehicle.
- Avoid an installation position where a bulkhead,
cupboard or light fitting could interfere with the
discharge air flow from the plenum.
It is important that the unit is never more
than 5° from the horizontal and the rear of
the unit should never be higher than the front.
- Contact Dometic if your installation differs
significantly.
ASSESS ROOF STRENGTH
- The roof members MUST be strong enough to
support the weight of the unit 99 lbs (45kg)
without any roof deflection that will cause
“pooling” of water around the unit. Contact your
RV manufacturer to confirm the max load the
roof is able to handle. If in any doubt consider
the use of an external “H” frame.
- If the roof does not have an existing hole
one must be cut. Cut from the roof then use the
roof hole as a guide to cut through the ceiling.
Contact your RV manufacturer for the best
method to cut through the roof.
- The square hole in the roof (14” x 14”) MUST
be boxed up with minimum 3/4 inch square
timber to provide a structure strong enough to
withstand the compression of the installation
bolts. This is also to ensure that air in not drawn
from the roof cavity (Fig 3 & 4). Remember to
leave access for wiring.
- Longitudinals MUST be fixed securely to the
transverse roof members to transfer load
(see Fig 3).
There may be electrical wiring located between the roof and
ceiling. Ensure that power is properly disconnected at the
supply (mains and/or battery). Failure to do so may result in
personal injury or death
TIP: Always use crawl boards acrosstheroof to avoid damage
POSITION UNIT ON ROOF
- Remove theairconditionerfromthe carton.
- Positiontheunitoverthegasketso that
thecorners ofthesquarehole intheRV roof lineup withthecorners
ofthesquare hole underneaththeairconditioner (Fig 6). TIP: Have
onepersoninsidetheRV looking through thehole while theother
ison theroof adjusting theposition of the unit.
CAUTION
WARNING

4
The unit weights approximately 86 l bs
(39kg). Ensure a two person lift or use
a mechanical hoist to avoid the risk of
injury.
- DO NOT slide the unit on the roof, this may
damage the gasket and result in leaks.
- Four M8 mounting holes on the chassis
underneath the air conditioner will line up with
the corners of the square roof hole (Fig 7).
ATTACH ADAPTER TO UNIT
- Screw adapter to the underside of unit with
the 4 screws provided (this step can also be
done before the unit is positioned on the roof
but be careful not to damage while fitting)
- The adapter will only fit one way, be careful
to ensure adapter is positioned correctly
(Fig 8) and avoid affixing back to front.
Ensure that power is properly
disconnected at the supply (mains
and/or battery). Failure to do so may
result in damage to the unit and
personal injury or death.
Fig 6- Position the unit over the roof gasket and set down gently.
Position the unit so the 4 mounting holes (circled) line up with the
corners.
Fig 8: Shows positioning of adapter to be attached to underside of unit. Ensure adapter is
mounted the correct way, screw holes will not line up if attached out of phase.
CONNECT ELECTRICAL SUPPLY
Installation must conform to local wiring codes
and regulations or, in the absence of local codes, the Standard on
Recreational Vehicles, NFPA 1192. and National Electrical Code
NFPA 70.
- Connect AC power supply to wire leads from unit
Note:
Brown wire from rooftop unit to Black or Red from customer –AC Hot
Blue wire from rooftop unit to White wire from customer –AC Common
Yellow/Green wire from rooftop unit to Green wire from customer - Ground
Note: Dometic strongly recommends the use of the Molex
connector described on the next page.
CAUTION
WARNING

5
COC-1 Self Contained Power Connector Installation Instructions
For 2 Wire Cable With Ground Applications
The 2-circuit-with-ground connectors willsplice non-metallic-sheathed cable in the following wire ranges and types:
SelfContained Connector -
2 Circuit with ground for Solid Wire
Wire Range
AWG
Order
No.
Optional
Hand Tool
Optional Bench
MountTool
Optional Bench
Arbor Press
Housing
Color
12-14
19045-1000
(COC-1)
19285-0074
N/A
64006-0200
White
Reference Information
UL File Number: E182087,
CSA File Number:LR18689-C53
NEC Article:550, 551, and 545
HUD Section: 3280.801
Current:20A,Voltage:300V
FIG. 2
InstallationProcedure:
1. Carefullystrip and prepare the wires to the configurationas shown in Figure 1 usinghelpful
hints shown in photographsof Figure 2.
2. Hold the clear strainrelief cover with bottom facing upward as shown in Figure 3.
3. Lay wire into locatorslots, making sure the black wire is placed into the polarizationslot as
shown in Figure 3.
4. Press the cable sheath into the integralstrain relief slot as shown in Figure 3. Trimmingof
ground wire and possiblyothers will be necessary. Wires must not extend beyond the
locators as shown in Figure 4!
5. While holding the strain relief cover, positionthe housing’shinge posts into the hingeslots
and press down until both lock into place as shown in Figure 4.
6. Close the strain relief cover and housing by hand. Place the connectorassemblyinto Molex
tool (preferred)as shown in Figure 5. Squeezethe tool until the connectorbottomsout and
the locking latches engage on both sides. OR alternately,squeeze the top and bottom
closed with tongueand groove pliers as shown in Figure 5.1. Pliers must be a minimumof
10" long. Squeeze
firmly on both sides, squarelyacross the connectorbetweenribs A and B to ensure wires seat
completelyinto slots.
7. Inspect the connector to ensure the wires have been properlyengagedinto the housing
assembly contacts. A properlyterminatedwire is fully seatedinto its proper slots with no
significantbow of the cover. If the wires extend past the insulations tops, the wires must be
re-terminatedwith a NEW CONNECTOR. Once the cover has been closed the connector
cannot be re-used. Failureto comply with this proceduremay result in the failure of the
connector.
8. Mating and un-matingthe completedconnector is illustratedin Figure 6.

6
OR

7
Roof Thickness-
Inch (mm) –
Include‘H’
frame if used.
Duct length
required –Inch
(mm)
Hold down bolt
length required –
Inch (mm)
4.92 (125)
5.71 (145) as
supplied
Assupplied
3.94 (100)
4.72 (120) - Cut
.98 (25)
Assupplied
3.15 (80)
3.94 (100) –
Cut1.77 (45)
Assupplied
2.36 (60)
3.15 (80) –Cut
2.56 (65)
Cut 1.97 (50)
1.57 (40)
2.36 (60) –Cut
3.35 (85)
Cut 2.76 (70)
1.0 (25) (absolute
minimum)
1.57 (40) –Cut
3.94 (100)
Cut 3.35 (85)
ASSESS ROOF THICKNESS
- Measure the roof thickness and consult the
table across to check if adjustments to the
hold down bolt and duct length are required.
Failure to cut the duct properly
can result in an incorrect seal which
will adversely affect the units
performance
ASSEMBLE DUCT
- Thread a hold down bar onto the M8 bolt and
push the bolt almost all the way into the hole in
each corner of the brace (Fig 9)
- Leave a .40 inch gap between the hold down
bar and the recess in the plastic brace. This will
allow for easier engagement with the four
corresponding threaded holes in the unit.
- Turn the assembly over and add the extension
duct to the top of the assembly (Fig 11).
- Take care to avoid tearing or ripping the duct
apart.
-
When attaching the duct to the
unit take care to ensure it forms a tight,
unbroken seal that doesn’t allow
discharge air to escape.

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ATTACH DUCT TO UNIT
- Raise the brace assembly and slip the
extension duct over the outside diameter of the
adapter underneath the rooftop unit. (Fig 11-12).
When attaching the duct to the unit take care
to ensure it forms a tight, unbroken seal that
doesn’t allow discharge air to escape.
- Engage and tighten the four M8 bolts with the
threaded inserts in the rooftop unit.
- Recommended tightening torque of the bolts is
7 N.m (5.2 lb-ft). As a rough guide the bolts
should be tightened so that the unit compresses
the roof seal gasket to approximately half its
height.
- As the bolts are tightened ensure that
the hold down bars slot into their recesses in the
brace (Fig 12).
ATTACH PLENUM COVER
- Connect the main cover of the plenum to the
duct by attaching the blue suspension cord to
the lug on the inside of the cover (Fig 13).
Reach into the unit, grab the control cable plug
and pull down to -This will allow you to use two
hands to connect the control cable (see Fig 14).
- Connect the key pad control cables together
(see below). Be sure that the plug joins the
corresponding wire colors together (yellow to
yellow, red to red etc.)
Failure to properly plug the control
cables together correctly will result in
loss of power to display.

9
ATTACH PLENUM COVER
- Secure the main plenum cover to the
duct assembly with the 4 screws
provided (Fig 15).
TIP: It is important that these screws
are not over tightened otherwise the
plenum may crack.
- Remove the filter elements by pulling
them out of the plenum, and use the
six self-tapping counter sunk screws
to secure the covers edges to the
vehicle ceiling (Fig 16). In some
instances a very small pilot hole
may need to be drilled to guide the
screws into place.
- Replace the return air filters by sliding
them into the plenum until they click into
place
-Your installation is now complete.
INSTALLATION IS NOW
COMPLETE

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VERIFYING NORMAL OPERATION
1. Turn the power on at the circuit breaker
2. Press the ON/OFF button and press the MODE button to select FAN
3. Cycle through the LO, MED and HIGH fan speeds checking that all speeds run.
4. Set mode to COOL, adjust temp via up/down buttons to approx. 6°F (3°C) less than the
display temp (ie. Room temp) compressor will start within three minutes.
5. Set mode to HEAT, similarly set temp to approx. 6°F (3°C) above display temp.
Compressor will start within three minutes.
After a few minutes the fan will start and warm air will be apparent.
Note: Regardless of the mode selected there will always be at least a 3 minute delay before
the compressor starts.
MAINTENANCE
I. Plenum Filters
The plenum filters are the only parts that require routine maintenance.
They must be cleaned periodically to ensure that they do not become clogged
with dust and other particles and not covered by Warranty.
To clean the two plenum filters, first remove them both from the plenum by
pulling them out of the assembly.
Fig 17 shows the plenum filter when removed.
The state of the filters can be ascertained from its appearance, the filters
are translucent, and if they appear clogged then they should be cleaned.
Generally the filters can be cleaned sufficiently by tapping them together to
shake loose the dust and particles trapped inside.
WARNING
Airborne particles can pose a health risk,
particularly to young children and the elderly.
Ensure that filters are cleaned in a safe and w ell
ventilated area.
If a more thorough cleaning is required then the filters can be washed out
using warm soapy water. Care must be taken to avoid ripping the fabric.
The filters should be cleaned every two weeks or more when in use.
Prolonged use, higher concentrations of airborne particles, and various
other factors may result in the filters needing to be cleaned more often.
Replacement filters can be ordered directly from Dometic.
II. Mounting Bolts
Dometic suggests that the hold down bolts are initially checked for tightness within
the first 3 months of installation, and thereafter every 12 months if the vehicle is in
constant use.
III. Storage
The air conditioner should be run on a routine basis to ensure the components
remain in working order.
If the vehicle is in storage or is to remain unoccupied for an extended length of
time it is recommended than the air conditioner is allowed to run uninterrupted for
20-30min once every six months.

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Air – Conditioner
Height- 12.8inch (325mm)
Width–26.6inch (675mm)
Length-38.4inch(975mm)
Weight–99lb(45kg)
Air Discharge Plenum
Height- 2.6inch (65mm)
Width- 21.0inch (535mm)
Length- 21.8inch(555mm)
Weight–1.1lb (2.4kg)
GENERAL SPECIFICATIONS
AC Description Model Number
13.5K Non-Ducted AC –White AC-1351W
13.5K Non-Ducted AC –Black AC-1351B
15K Non-Ducted AC –White AC-1501W
15K Non-Ducted AC –Black AC-1501B
Model13500
Model15000
ElectricalRating:
115V, 60Hz
115V, 60Hz
ElectricalRating:
13,500 BTU/Hr
15,000 BTU/Hr
Nominal Heating Capacity:
n/a
15,000 BTU/Hr
F.L.A. Cooling:
12.5A
13.0A
F.L.A. Heating:
n/a
13.0A
LockedRotor Amps:
63 A
63 A
Refrigerant:
R410A
R410A
Refrigerant:
18 Oz (510 g)
24 Oz (670 g)
Total Installed Weight:
84lb (38 kg)
86lb (39 kg)
OPERATING INSTRUCTIONS
- Turn the unit on by pressing the ON/OFF button once.
- Press the MODE button to cycle through thefivemode
selections: COOL, FAN, HEAT, DRY, AUTO Cool/Heat modes.
-
- MODE – COOL
- Cycle mode pushbutton to highlight COOL.
- You may select HIGH, MED, LOW, or AUTO fan speeds by pressing
the fan pushbutton. It is recommended that you choose Auto.
- Now select the desired room temperature (herein referred to as
SETPOINT) by pressing the TEMP up or down pushbuttons.
The readout will flash the setpoint temperature. Keep pressing
the pushbutton until it flashes your desired set point. In approx.
5 seconds the display will resume reading the actual room
temperature.The compressor will have a delayed start usually
3 minutes before unit starts to cool.
Note: Any interruption to the power supply will cause the unit to
delay compressor start up
- MODE – FAN
-For simply re-circulating air, choose the FAN mode. Choose any of the three fan speeds by pressing FAN
button. Note: Temperature pushbuttons are invalid in FAN mode.
-MODE - HEAT
- To heat, press MODE pushbutton to highlight HEAT.
- Select desired set point temperature by pressing TEMP up or down pushbuttons. It is recommended that the
AUTO fan speed be selected.
- After the delay, the compressor will start. Usually the fan will stop and will not re-energize until the heat
exchanger has warmed and then the fan will start to blow warm air.
Thermostat control module. A “cool only”
model (AC-1351) will not have the furnace
pushbutton on the display.

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OPERATING INSTRUCTIONS – Continued
MODE - DRY
- The DRY mode is used when the room temperature is close to comfortable but you wish to dehumidify.
- Press MODE pushbutton to highlight DRY.
- Set the temperatureto desired set point. Note: the fan speed is locked in LOW.
- The compressor will cycle on and off at approximate intervals of 6 minutes to extract moisture from the air.
MODE – AUTO COOL/HEAT
- This mode has an outdoor defrost mode (indicated by a flashing HEAT LED). During the outdoor defrost
cycle, the MODE pushbutton is inactive.
SLEEP FUNCTION
- With the unit operating in heat or cool mode, press sleep pushbutton to highlight the sleep light. The unit
over the next hour will automaticallyraise the set point by 2°F. Conversely in heat mode, the set point will
be lowered 2°F.
TIMER FUNCTION
- The timer may be used to turn off the unit in the future (up to 24 hours) OR the timer may be used to turn
on the unit up to 24 hours in the future.
- Press TIMER pushbutton once and the display will flash. Within 3 seconds, press the timer pushbutton
until you have set desired time into the future to turn unit off. A subsequent press of the timer pushbutton
will allow the time to start the unit to be programmed.
LOCK FUNCTION (key symbol)
- This provides a means of locking in the mode and fan settings. To lock, press Temp Down pushbutton
simultaneouslywith MODE pushbutton. Hold for 3 seconds and the lock indicator will light. To unlock,
repeat above procedure.
DISPLAY SETTING
- To change readout from Celsius to Fahrenheit or vice versa: Press Temp Down pushbutton
simultaneouslywith the Fan pushbutton.
REMOTE CONTROL UNIT
Many models have a remote control unit which can adjust the thermostat remotely.
- The remote control has duplicated the thermostat input pushbuttons including: the ON/OFF
pushbutton, TEMP UP/DOWN, FAN, MODE, SLEEP, and TIMER pushbuttons
- LEDs in the thermostat control respond to a pushbutton actuation from the remote control unit in
the same manner as it would respond to the pushbutton actuation on the thermostat control.
- The remote control requires a CR2025 battery commonly available.

13
OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT
Press to select auto, high,
medium or low fan speed
Fan speed button
Press to activate on/off
timer programming mode
Timer button
Room temperature
setting button
Display timer setting, set or room
temperature in C or F
Temperature display
area
Key lock
Sleep button
Press once to select sleep mode
Press again to cancel sleep mode
Press to select cool, dry, heat,
fan, or auto operation mode
Mode button
Press once to start operation
Press again to stop operation
On/Off button
To receive wireless handset signal
Infra red reception
SENSOR
ON/OFF
COOL
MODEFAN
FAN
HEAT
DRY
AUTO
TEMP MED
LOW
HIGH
SLEEPTIMER FURNACE
Furnace button
This button is valid in heatpump +
furnace model only
Press once to select furnace as
primary heating
Press again to cancel furnace as
primary heating
1. Power On/Off
Press
ON/OFF
to start or stop the air conditioner.
2. Temperature setting
Press or to decrease or increase the set temperature. When any of these buttons is
pressed, temperature display area will flash with the old temperature setting for 4 seconds. Should
there be no further key press it will then return to room temperature display in the range of 0C-50C.
Press and
FAN
together for 5 seconds will change the temperature setting from C to F. Valid
temperature set range is 16C-30C or 60F-85F.
Temperature setting is bypassed in Fan mode.
Temperature display according to set temp. Press
SLEEP
button for 5sec to show room temp until key
is released. In degree F setting, 100 is shown as A0, 110 as B0, 120 as C0, 130 as D0, 140 as E0
and 150 as F0.

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OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT (cont)
3. Mode setting
Press
MODE
button to change the operation mode as follow:-
Cool→Dry→Heat→Fan→Auto Cool/Heat
Heat and Auto mode is not available for cooling only model. Auto mode is not available for model
where furnace is primary heating.
Heat LED flashes during outdoor defrost cycle.
MODE
button press is invalid during this cycle.
4. Overriding
This function is available in heat pump + furnace model only.
Press
FURNACE
button to activate furnace as primary heating. Heat pump operation will be inhibited
thereafter. Press the same button again to disable overriding function.
5. Fan speed setting
Press
FAN
button to change the fan speed：Auto→High→Medium→Low. Auto fan setting is
bypass in Fan mode. Fan speed setting is bypass in dry mode.
When furnace is working as primary heat source in heat mode, pressing
FAN
button for 5sec to
turn the fan off, display will show “FF”until button is released. Pressing
FAN
button again for 5sec
to let the fan continue running, display will show “F0”until button is released.
6. Sleep setting
Press
SLEEP
button to activate or deactivate sleep setting. Sleep is bypass in Fan and Dry mode.

15
OPERATING INSTRUCTIONS FOR ADJUSTING THE THERMOSTAT (cont)
7. On/Off timer setting
When the system is on, setting the timer will turn off the unit after the programmed hours were
counted down. When the system is off, setting the timer will turn on the unit after the programmed
hours were counted down.
Press
TIMER
button once to activate on/off timer programming mode. Timer LED and temperature
display area flash for 3 seconds showing the number of count down hours left. Thereafter, Timer LED
flashes and temperature display area shows the timer setting.
Press
TIMER
again to set the timer from 1 to 24 hours in 1 hour incremented in a round robin pattern.
Hold down this key will change the timer setting automatically every half second.
Press
TIMER
until the display shows “—“ will cancel the timer setting.
Should there be no further button press, system will exit from on timer programming mode
automatically.
Timer LED will light up if on/off timer is set.
Press
ON/OFF
to start or stop the air conditioner will also cancel the timer setting.
8. Error code display
Should there be any fault happen with the main board, the relevant error code will be shown on the
temperature display area.
If there is multiple faults happen at the same time, the error code will be shown one after another.
System will alternate the display of error code and room temperature.
Depends on the model of main board, the error codes available are:
Fault
Error code
Room sensor failure
E1
Indoor coil sensor failure
E2
Outdoor coil sensor failure
E3
Insufficient of refrigerant
E4
Compressor overload
E5
Not used
E6
Not used
E7
Outdoor air sensor failure
E8
Wall pad room sensor failure
E9

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TROUBLESHOOTING
Control Pad will not illuminate when ON/OFF
button is pressed
Unit does not cool
Unit does not heat
Insufficientcoolingcapacity
- Check circuit breaker is on
- Controlcable maybe unpluggedbetween outside
unit and inside fascia
- Check power supplyto vehicle
- Check circuit breaker is on
- Controlcable maybe unpluggedbetween outside
unit and inside fascia
- Check power supplyto vehicle
- Ensure mode has been switched to heat (check green
LED)
- Thermostat set point must be above room
temperature
Note: The compressor has a 3 minute
delaybeforestarting
- In verycold conditions the unit will take more time to
start producing warm air
- Ensure return air filters are clean
- Operate the unit on high fan speed to obtain
maximum capacity
- Ensure all windows, doors, skylights and hatches
are closed and curtains/awningsused to reduceheat
load, check for adequate insulation in roof & walls

17
LIMITED TWO-YEAR WARRANTY
LIMITED TWO-YEAR WARRANTY AVAILABLE AT WWW. DOMETIC.COM/WARRANTY.
IF YOU HAVE QUESTIONS, OR TO OBTAIN A COPY OF THE LIMITED WARRANTY FREE OF CHARGE,
CONTACT:
DOMETIC CORPORATION
CUSTOMER SUPPORT CENTER
1120 NORTH MAIN STREET
ELKHART, INDIANA, USA 46514
1-800-544-4881 OPT 3

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