Page 1
RECORD THIS INFORMATION FOR FUTURE
REFERENCE:
Model Number
Serial Number
Date Purchased
Self-Contained Unit
Description Model
Heat Pump 441003.701
441003A701
INSTALLATION
INSTRUCTIONS
This Unit is designed for OEM installation. All initial installations must be approved by Dometic Corporation.
Read these instructions carefully. These
instructions MUST stay with this product.
REVISION C
Form No. 3314102.000 08/16
(French 3314103.000_C)
©2016 Dometic Corporation
LaGrange, IN 46761
USA
SERVICE OFFICE
Dometic Corporation
1120 North Main Street
Elkhart, IN 46514
CANADA
Dometic Corporation
46 Zatonski, Unit 3
Brantford, ON N3T 5L8
CANADA
SERVICE CENTER &
DEALER LOCATIONS
Please Visit:
www.eDometic.com
Page 2
INTRODUCTION
This heat pump (hereinafter referred to as “unit” or “product”) is designed and intended for installation in a small Recreational
Vehicle (hereinafter referred to as RV) during the time it is manufactured. It is recommended that the RV interior space be
essentially one undivided space.
Use these instructions to ensure a properly installed, and properly functioning product.
Dometic Corporation reserves the right to modify appearances and specications without notice.
TABLE OF CONTENTS
INTRODUCTION .................................................................................................................................................................... 2
DOCUMENT SYMBOLS ........................................................................................................................................................2
IMPORTANT SAFETY INSTRUCTIONS ................................................................................................................................3
A. Recognize Safety Information ...................................................................................................................................3
B. Understand Signal Words ..........................................................................................................................................3
C. Supplemental Directives ............................................................................................................................................3
D. General Safety Messages .........................................................................................................................................3
GENERAL INFORMATION .....................................................................................................................................................4
A. Required Tools ...........................................................................................................................................................4
B. Heat Gain ..................................................................................................................................................................4
C. Unit Functions ............................................................................................................................................................4
D. Condensation ............................................................................................................................................................4
E. Drain Tube .................................................................................................................................................................4
F. Heat Pump Operation ................................................................................................................................................ 4
SPECIFICATIONS .................................................................................................................................................................. 5
A. Table - Unit Data ........................................................................................................................................................5
B. Interior Compartment/Sidewall Opening Requirements ............................................................................................5
INSTALLATION INSTRUCTIONS ..........................................................................................................................................6
A. Choosing Proper Location For Unit ...........................................................................................................................6
B. Grilles And Registers ................................................................................................................................................. 6
C. Opening Preparation .................................................................................................................................................6
D. Wiring Requirements .................................................................................................................................................7
E. Choosing Thermostat Location ..................................................................................................................................7
F. Installing Unit ............................................................................................................................................................. 7
G. Wiring System ...........................................................................................................................................................8
H. Thermostat And Communication Cable Installation ...................................................................................................8
I. System Checkout ......................................................................................................................................................9
WIRING DIAGRAM ................................................................................................................................................................9
A. Unit Wiring Diagram - Earlier Version ........................................................................................................................9
B. Unit Wiring Diagram - Later Version ........................................................................................................................10
INSTALLATION COMPONENTS .......................................................................................................................................... 10
DOCUMENT SYMBOLS
Indicates additional information that is NOT related
to physical injury.
Indicates step-by-step instructions.
2
Page 3
IMPORTANT SAFETY INSTRUCTIONS
This manual has safety information and instructions to help
you eliminate or reduce the risk of accidents and injuries.
A. Recognize Safety Information
This is the safety alert symbol. It is used to
alert you to potential physical injury hazards.
Obey all safety messages that follow this
symbol to avoid possible injury or death.
B. Understand Signal Words
A signal word will identify safety messages and
property damage messages, and will indicate the
degree or level of hazard seriousness.
indicates a hazardous situation that,
if NOT avoided, could result in death or serious injury.
indicates a hazardous situation that,
if NOT avoided, could result in minor or moderate
injury.
is used to address practices NOT
related to physical injury.
C. Supplemental Directives
Read and follow all safety information and
instructions to avoid possible injury or death.
Read and understand these instructions before [installing / using / servicing / performing
maintenance on] this product.
Incorrect [installation / operation / servicing /
maintaining] of this product can lead to serious injury. Follow all instructions.
The installation MUST comply with all applicable local and national codes, including
the latest edition of the following standards:
U.S.A.
● ANSI/NFPA70, National Electrical Code
(NEC)
● ANSI/NFPA 1192, Recreational Vehicles
Code
CANADA
● CSA C22.1, Parts l & ll, Canadian Electri-
cal Code
● CSA Z240 RV Series, Recreational
Vehicles
D. General Safety Messages
Failure to obey the following warnings could result in death or serious injury:
● This product MUST be [installed / serviced] by a
qualied service technician.
● Do NOT modify this product in any way. Modica-
tion can be extremely hazardous.
● Do NOT add any devices or accessories to this
product except those specically authorized in
writing by Dometic Corporation.
3
Page 4
GENERAL INFORMATION
A. Required Tools
● Jigsaw
● Electric Drill
● Measuring Tape
● Utility Knife
● Socket Wrench Set
● Phillips Screwdriver / Bit
● Flat-Bladed Screwdriver / Bit
● Sealant
● Drill Bits
B. Heat Gain
The ability of this 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 RV 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. Avoid the use of heat producing appliances
5. Keep return air lter clean
Operation on High Fan/Cooling mode will give optimum
or maximum efciency in high humidity or high outside
temperatures.
Starting the air conditioner early in the morning and giving
it a “head start” on the expected high outdoor ambient will
greatly improve its ability to maintain the desired indoor
temperature.
For a more permanent solution to high heat gain, accessories like Dometic outdoor patio and window awnings will
reduce heat gain by removing the direct sun. They also add
a nice area to enjoy company during the cool of the evening.
D. Condensation
The manufacturer of this unit will not be responsible for
damage caused by condensation forming on ceilings,
windows, or other surfaces. Air contains water vapor which
condenses when temperature of a surface is below Dew
point. During normal operation this unit is designed to
remove a certain amount of moisture from the air, depending on the size of the space being conditioned. Keeping
doors and windows closed when this air conditioner is in
operation will greatly reduce the chance of condensation
forming on interior surfaces.
E. Drain Tube
1. The drain tube should be left unplugged during
heating operation, storage, and any time when
traveling after the unit has been operating.
F. Heat Pump Operation
1. Heat pump mode will not operate when the outside temperature is 30° F and below. If heating
is required switch over to furnace mode if applicable.
C. Unit Functions
1. Cools and circulates inside air (Spring/Summer/Fall).
2. Lowers humidity by removing excess moisture
(Spring/Summer/Fall).
3. Filters out dust, dirt, and other airborne impurities (Spring/Summer/Fall/Winter).
4. Heats and circulates inside air (Spring/Fall/
Winter).
The unit performs these functions by drawing room air
through a lter which traps dust and dirt particles. The air
then passes over the indoor conditioning coil which cools
and removes excess moisture (Spring/Summer/Fall) and
heats the air (Spring/Fall/Winter). The same air is then
returned to the living space to keep you comfortable.
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Page 5
SPECIFICATIONS
A. Table - Unit Data
Model No. Nominal
441003.701 10,150 120 Vac
441003A701 10,150 8.9 50.0 2.2 6.6 28.0 20 Amp 2.8 kW / 4.0 kW 22″ 14.5″ 20.5″ 70
Capacity
(BTU HR)
Cooling
Electrical
Rating*
60 Hz 1 ph
Compressor
Rated Load
Compressor
Amps
8.9 50.0 2.2 6.6 28.0 12 AWG
Locked
Rotor
Amps
Fan Motor
Rated Load
Amps
Fan Motor
Locked
Rotor
Amps
Refrigerant
R-410A
(oz)
Minimum
Wire Size**
Copper
Up to 24'
AC Circuit
Protection
****Installer
Supplied
20 Amp 2.8 kW / 40 kW 22″ 14.5″ 20.5″ 70
Minimum
Generator
Size***
1 Unit / 2 Units
Unit
Width
Unit
Height
Unit
Depth
Installed
Weight
(Pounds)
* Maximum unit performance achieved at full rated voltage.
** For wire length over 24 ft., consult the National Electrical Code for proper sizing.
*** Dometic Corporation gives GENERAL guidelines for generator requirements. These guidelines come from experiences
people have had in actual applications. When sizing the generator, the total power usage of your RV must be considered.
Keep in mind generators lose power at high altitudes and from lack of maintenance.
**** CIRCUIT PROTECTION: Time Delay Fuse or Circuit Breaker Required.
B. Interior Compartment/Sidewall Opening Requirements
1. A dedicated interior compartment MUST BE provided for the unit installation. This compartment MUST BE OPEN
TO THE OUTSIDE AND AIR SEALED TO THE INSIDE. Interior compartment must be at least 20″ deep with an
inside cabinet front cutout of 20″ x 14″. The opening must be 1″ above the mounting surface for the unit.
2. A 22-3/4″ wide x 15″ high opening through the sidewall or outside panel is required.
5
Page 6
INSTALLATION INSTRUCTIONS
A. Choosing Proper Location For Unit
1. The RV manufacturer engineering staff should
carefully review each oor plan to determine the
best location before starting an installation.
Alternate congurations and methods
may be used which still allow the unit to
operate properly; however, these alter-
nate congurations and methods MUST
be approved by Dometic Corporation.
B. Grilles And Registers
The following accessories are available in various kits to
simplify installations. See (FIG. 1).
1. Indoor direct discharge grille alone, with indoor
vents.
2. Indoor direct or ducted discharge grille with outdoor grille.
3. Indoor direct discharge grille with outdoor grille
and outdoor rain shield.
FIG. 1
Outside Grille
FIG. 2
FIG. 3
Inside Cabinet Front Cutout
20″
14″
Opening For
Front Grille
1″ Required Above Floor
Line For Attaching Front
Grille With Screws
22-3/4″
StorageStorage
Rear
Filter
Inside Grille
(Ducted Shown)
C. Opening Preparation
1. FIRE OR ELECTRICAL SHOCK
HAZARD. Verify there are no obstacles inside
RV’s roof and/or walls (wires, pipes, etc.). Shut
OFF gas supply, disconnect 120 Vac power from
RV, and disconnect positive (+) 12 Vdc terminal
from supply battery BEFORE drilling or cutting
into RV. Failure to obey these warnings could
result in death or serious injury.
2. Once the oor plan has been reviewed and the
compartment has been selected for unit installa-
tion, a 22-3/4″ wide by 15″ high opening through
the sidewall or outside panel is required. The in-
terior compartment must be at least 20″ deep.
See (FIG. 2) & (FIG. 3).
Floor Line
Outside Wall Opening
3. Remove the unit from its carton. Inspect for shipping damage.
4. Locate the discharge air plenum on the unit. Cut
the required hole or holes for your installation.
The 3 front holes for direct discharge, or the side
and/or top holes for ducted applications. See
(FIG. 4).
FIG. 4
Discharge
Plenum
Return
Air
Data Plate
Rear
120 Vac Junction
Box Connection
15″
6
Thermostat
Connection
12 Vdc & Furnace
Connection
Page 7
INSTALLATION INSTRUCTIONS
In a travel trailer installation, if within a
cabinet or in the ceiling, ducting may be
required.
5. Interior access openings should be prepared as
shown. Cabinet front opening must be 20″ wide
by 14″ high to provide an opening for the dis-
charge and return air grille. The opening must
be 1″ above the mounting surface of the unit. A
discharge and return air grille with register option is available to speed up the installation. An
electrical service opening is provided by removing the return air grille. See (FIG. 2).
D. Wiring Requirements
1. Route a copper, with ground, 120 Vac supply
wire from the time delay fuse or circuit breaker
box to the roof opening. Use a listed/certied
non metallic - sheathed single strand cable. See
“A. Table - Unit Data” on page (5).
2. Make sure enough supply wire extends into the
compartment to ensure and easy connection at
the junction box.
3. Protect the wire where it passes into the compartment with approved method.
4. Route a dedicated 12 Vdc supply wire (18-
22 AWG) from the RV converter (ltered side)
or battery to the unit compartment. Make sure
enough supply wire extends into the compartment to ensure an easy connection at the unit.
5. Route a 3 conductor cable from the compartment to the Liquid Crystal Display Single Zone
(hereinafter referred to as LCD SZ) thermostat
mounting location. Make sure enough wire ex-
tends into the compartment and 6″ extends from
the wall at the thermostat mounting location.
See “E. Choosing Thermostat Location” on page
(7).
6. If system includes a gas furnace, route two 18
gauge thermostat wires from the furnace to the
unit compartment. Make sure enough wire extends into the compartment to ensure an easy
connection at the unit.
E. Choosing Thermostat Location
The proper location of the thermostat is very important to ensure that it will provide a comfortable
RV temperature. Observe the following rules when
selecting a location:
1. Locate the thermostat 54″ above the oor.
2. Install the thermostat on a partition, not on an
outside wall.
3. NEVER expose it to direct heat from lamps, sun
or other heat producing items.
4. Avoid locations close to doors that lead outside,
windows or adjoining outside walls.
5. Avoid locations close to supply registers and the
air from them.
F. Installing Unit
Hold-down clamps, screws, drain tting, and
sealant used in step 1 & 2 are in hardware kit
3107662.003 and is purchased separately.
1. Now that your compartment is ready with all
holes cut, carefully slide the unit into position
from the outside. Clip the hold-down clamps
over the base pan ange and secure in place
with screws. See (FIG. 5).
FIG. 5
Drain
Fitting
Drain
Fitting
7
Hold-Down Clamp
2. Next, install the drain ttings in the base pan.
Sealant must be added around the threaded end
of drain tting before it is screwed into the base
pan. See (FIG. 5).
3. Install the rain shield. See (FIG. 9).
4. Seal along the unit bottom to rain shield.
5. Using 1/2″ plastic tube, (installer supplied) ex-
tend the drain ttings through the vent grille or
through holes in the bottom of the compartment.
Make sure to seal around the tubing where it exits the bottom of the compartment, and that the
condensate will drain to the outside of RV.
6. Make sure the condenser deector is against
the back of the outside grille. This will decrease
recirculation of hot air back into the grille. Install
the outside grille. See (FIG. 5) & (FIG. 9).
7. The outside work is complete.
Condenser
Deector
Screws
Hold-Down
Clamp
Base Pan
Drain Fitting
Apply Sealant
The rain shield MUST have sealant ap-
plied to the short ange surfaces and bottom of the unit, sealing the compartment
from rainwater and condensation.
Page 8
INSTALLATION INSTRUCTIONS
If your cabinet space is between 20″ and
23-1/2″ deep, the metal duct extension is
NOT needed. Attach the registers directly
to the unit knockout openings. Do NOT in-
sert the registers more than 1/2″ into the
knockouts. In some installations registers
will need to be cut to t the cabinet space.
See “FIG. 9” on page (10) for the order
of installation and installation kit component part list.
8. After the registers have been installed, install
the inside grille to the cabinet front.
When unit is installed with air distribution
ducts to carry the conditioned air to remote areas of the interior space, the ducts
MUST be sized to maintain a static pressure at the blower outlet between 0.0 and
0.6 inches of water column on high speed.
G. Wiring System
1. 120 Vac Power Supply Connection
a. ELECTRICAL SHOCK HAZ-
ARD. Verify 120 Vac power is disconnected
from RV. Failure to obey this warning could
result in death or serious injury.
b. ELECTRICAL SHOCK HAZ-
ARD. Provide grounding in compliance with
all applicable electrical codes. Failure to
obey this warning could result in death or serious injury.
c. Remove junction box cover. See “FIG. 9” on
page (10).
d. Route the previously run 120 Vac supply
wire through the strain relief and into junction box. Tighten strain relief making sure not
to damage wires. Leave enough wire inside
junction box to connect to unit 120 Vac wires.
e. Connect the wires in the junction box to the
120 Vac supply wire using appropriate size
wire connectors.
● Active to Black
● Neutral to White
● Earth to Green/Yellow
f. Tape the connectors to the supply to ensure
they don’t vibrate loose.
g. Install junction box cover.
2. Low Voltage Wiring Connections
a. Verify the positive (+) 12 Vdc
terminal is disconnected from supply battery.
Otherwise, damage to unit could occur.
b. Connect the previously run +12 Vdc supply
wire to the red wire protruding from unit.
c. Connect the previously run –12 Vdc supply
wire to both the black wire protruding from
the unit and to the wire of the three wire cable
that goes to the thermostat 12V– terminal.
The low voltage connection can be
made without removing the electrical box cover. The low voltage leads
MUST be tucked back inside the electrical box.
d. Connect the previously run furnace wires (if
applicable) to the blue/white wires protruding
from the unit. The polarity of this connection
does not matter.
e. Connect the red/white wire protruding from
the unit to the wire of the three wire cable
that goes to the thermostat 12V+ terminal.
f. Connect the orange wire protruding from the
unit to the wire of the three wire cable that
goes to the thermostat COMMS terminal.
H. Thermostat And Communication Cable
Installation
Wire colors listed for the communication cable (3 conductor cable) match the wire colors
in the unit wire harness. Available wire colors
may vary.
1. Remove the cover from the LCD SZ thermostat.
Depress tab on bottom of thermostat and separate it from the base.
2. Insert the previously run communication cable
(3 conductor cable) through the hole in the base
assembly.
3. Cut back the outer cable shield approximately 3
inches and strip 1/4″ insulation from each wire.
4. Mount the thermostat level on the wall using the
screws provided.
5. Make the following connections to the thermostat. See (FIG. 6).
FIG. 6
12-
12+
COMMS
8
Page 9
INSTALLATON INSTRUCTIONS
● Red/White wire to the 12V+ terminal
● Black wire to the 12V– terminal
● Orange wire to the "COMMS" terminal
6. Inspect all connections to make sure they are
tight and not touching any other terminals or
wires.
7. Push the wires back through the base into the
wall. Place cover on the thermostat and push
until an audible click is heard.
8. This completes the unit installation.
I. System Checkout
1. Verify that all features of the system work. See
the LCD SZ thermostat Operating Instructions
or User’s Guide. Reconnect the 12Vdc and 120
Vac power supplies. Check fan speeds, cooling
mode, heating mode, and furnace mode (if connected) operation.
If features do not work, disconnect the 120 Vac
and 12 Vdc power supplies and verify that all
wiring is correct.
WIRING DIAGRAM
A. Unit Wiring Diagram - Earlier Version
FIG. 7
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9
Page 10
WIRING DIAGRAM
B. Unit Wiring Diagram - Later Version
FIG. 8
INSTALLATION COMPONENTS
FIG. 9
Rain Shield Top
Unit
Duct Extension
Register
Outside Grille
Rain Shield
120 Vac Junction Box Cover
Strain Relief
Data Plate
Inside Grille (Direct Discharge Shown)
Thermostat
Connection
Filter
12 Vdc & Furnace Connection
10
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