Dometic FreshJet3 Series User manual

CLIMATE CONTROL
FRESHJET
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov 3317883.000 2023-03-10 | ©2023 Dometic Corporation
FreshJet3 Series and FreshJet4 Series
EN Rooop air conditioner (air
distribution box, wall thermostat
controls)
Installation manual ......................3
FR Climatiseur de toit (caisson de
distribution d’air, commandes de
thermostat murales)
Instructions de montage ................27

2EN
Rooop air conditioner (air distribution box, wall thermostat controls)
Copyright
© 2023 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law.
The underlying technical design and the products contained herein may be protected by design, patent or be patent
pending. The trademarks mentioned in this manual belong to Dometic Sweden AB. All rights are reserved.

Rooop air conditioner (air distribution box, wall thermostat controls)
1 Explanation of symbols and safety
instructions ............................ 3
1.1 Recognize safety information .............3
1.2 Understand signal words ................4
1.3 Supplemental directives .................4
1.4 General safety messages.................4
2 Intended use ........................... 4
3 General information ..................... 5
3.1 Tools and materials .....................5
3.2 Model identification ....................5
3.3 ADB components ......................5
3.4 Thermostat compatibility ................6
3.5 Rooftop component dimensions ..........6
3.6 ADB component dimensions .............6
3.7 Placement requirements .................7
4 Specifications .......................... 8
5 Wiring diagrams ........................ 9
6 Pre-installation ........................ 10
6.1 Determining your cooling needs .........10
6.2 Preparing the thermostat opening .......10
6.3 Preparing the RV roof opening ...........10
6.4 Routing the supply wiring to the roof
opening .............................12
6.5 Positioning the rooftop component.......14
6.6 Preparing to work inside the RV ..........14
7 Installation............................ 15
7.1 Installing and wiring the thermostat and
optional sensor .......................15
7.2 Installing the electronic control box .......17
7.3 Configuring the electronic control box ....17
7.4 Installing the foam dividers ..............19
7.5 Securing the ADB .....................22
8 System check ..........................23
8.1 Resetting the system ...................23
8.2 Checking out the system................24
9 Operation............................. 24
10 Maintenance .......................... 24
10.1 Cleaning the air filter ...................24
10.2 Cleaning the ADB .....................24
10.3 Servicing the blower ...................24
11 Troubleshooting .......................25
12 Disposal ..............................26
Limited Two-Year Warranty .................26
Service Center & Dealer Locations
Visit: www.dometic.com
Please read these instructions carefully and follow all instructions,
guidelines, and warnings included in this product manual in order to
ensure that you install, use, and maintain the product properly at all
times. These instructions MUST stay with this product.
By using the product, you hereby confirm that you have read
all instructions, guidelines, and warnings carefully and that you
understand and agree to abide by the terms and conditions as set
forth herein. You agree to use this product only for the intended
purpose and application and in accordance with the instructions,
guidelines, and warnings as set forth in this product manual as well
as in accordance with all applicable laws and regulations. A failure
to read and follow the instructions and warnings set forth herein may
result in an injury to yourself and others, damage to your product,
or damage to other property in the vicinity. This product manual,
including the instructions, guidelines, and warnings, and related
documentation, may be subject to changes and updates. For up-to-
date product information, please visit www.dometic.com.
3
EN
Contents
1 Explanation of symbols and
safety instructions
This manual has safety information and instructions to
help you eliminate or reduce the risk of accidents and
injuries.
1.1 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.

4EN
Intended use Rooop air conditioner (air distribution box, wall thermostat controls)
1.2 Understand signal words
A signal word will identify safety messages and property
damage messages, and also will indicate the degree or
level of hazard seriousness.
DANGER!
Indicates a hazardous situation that, if not avoided,
will result in death or serious injury.
WARNING
Indicates a hazardous situation that, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a hazardous situation that, if not avoided,
could result in minor or moderate injury.
NOTICE: Used to address practices not related to
physical injury.
IIndicates additional information that is not related
to physical injury.
1.3 Supplemental directives
To reduce the risk of accidents and injuries, please
observe the following directives before proceeding to
install, operate, or service this product:
• Read and follow all safety information and
instructions.
• Read and understand these instructions before
installing, operating, or servicing this product.
• The installation must comply with all applicable local
or 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
– ANSI Z21.57, Recreational Vehicles Code
Canada
– CSA C22.1, Parts l & ll, Canadian Electrical Code
– CSA Z240 RV Series, Recreational Vehicles
1.4 General safety messages
WARNING: ELECTRICAL SHOCK, FIRE, AND/
OR EXPLOSION HAZARD. Failure to obey the
following warnings could result in death or
serious injury:
• Use only Dometic replacement parts and
components that are specifically approved for use
with the product.
• Avoid improper installation, adjustment, alterations,
service, or maintenance of the product. Installation,
service, and maintenance must be done by a
qualified service person only.
• Do not modify this product in any way. Modification
can be extremely hazardous.
• Use care when diagnosing and/or adjusting
components on a powered product.
• This product is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the product by a
person responsible for their safety.
• Children should be supervised to ensure that they do
not play with the product.
IThe FreshJet4 series is equipped with a LED light
on the shroud. The light cannot be used while the
recreational vehicle is in motion.
2 Intended use
TheFreshJet Rooop Air Conditioner (Air Distribution
Box, Wall Thermostat Controls), (also referred to as
the “product” or “unit”), is designed and intended
for installation on the roof of a Recreational Vehicle,
hereinaer referred to as the “RV”, during or aer the
time it is manufactured. The product is comprised of
three main components: the rooop component,
the internal air distribution box (ADB) component,
and the wall thermostat, hereinaer referred to as
the “thermostat”. This product is only suitable for the
intended purpose and application in accordance with
these instructions.
This manual provides information that is necessary for
proper installation of the product. Poor installation and/

5
EN
Rooop air conditioner (air distribution box, wall thermostat controls) General information
or improper operating or maintenance will result in
unsatisfactory performance and a possible failure. The
manufacturer accepts no liability for any injury or damage
to the product resulting from:
• Incorrect assembly or connection, including excess
voltage
• Incorrect maintenance or use of spare parts
other than original spare parts provided by the
manufacturer
• Alterations to the product without express permission
from the manufacturer
• Use for purposes other than those described in this
manual
Dometic reserves the right to change product
appearance and product specifications.
3 General information
This section provides general information about the unit
and its components.
IThe images used in this document are for reference
purposes only. Components and component
locations may vary according to specific product
models. Measurements may vary ±0.38in.(10mm).
3.1 Tools and materials
Dometic recommends that the following tools and
materials be used.
Recommended tools and materials
Framing wood All-weather caulk
Knife/box cutter Screwdrivers
Electrical connectors 3/8” torque wrench socket
Basic electrical connection
tools Torque wrench (22.2 in. lbs /2.5 N·m)
RJ-45 crimping tool
Optional parts
Part name Dometic part number
Spare foam divider kit13318198.000
2-pin Molex Mini-Fit Jr. receptacle Not applicable
1 Available as an accessory (not included). Accommodates a roof thickness
greater than 5.5 in. (140 mm) and includes two spare 1.2 in. (30mm) foam
dividers and four 9-1/2 in. long bolts.
3.2 Model identification
The model identification labels are located as follows:
• The rooop component and serial numbers are found
on the identification label located on the bottom of
the base pan. To view the identification label, remove
the ADB cover from the ADB.
• The ADB component model and serial numbers
are found on the rating plate located on the ceiling
template. To view the rating plate, look through the
filter opening.
IHave this information ready before contacting
Dometic for service.
3.3 ADB components
This section identifies the main ADB components.
q
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tt
tt
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1 ADB components
qFoam dividers rLong bolts
wCeiling template tAir filter
eADB cover

6EN
General information Rooop air conditioner (air distribution box, wall thermostat controls)
3.4 Thermostat compatibility
This section identifies the thermostat displays
compatible with this ADB.
Display Model
Interact LED display INC1LED
Interact rotary display INC1015RD
3.5 Rooop component dimensions
This section provides the external dimensions and
clearance measurements of the rooop component.
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2 FreshJet (FJX3 and FJX4 series)
q13.8 in. (351 mm) yCenter line of unit
w29.6 in. (752 mm) uRoof opening
e27.6 in. (701 mm) iFront of unit
r18.0 in. (457 mm)
clearance
tAir flow clearance area
(shaded)
3.6 ADB component dimensions
This section provides the internal dimensions of the ADB
component.
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3 Dimension measurements
qFront of unit yCenter line of unit
w2.3 in. (58 mm) u11.6 in. (295 mm)
e23.0 in. (584 mm) i3.4 in. (86 mm)
r20.4 in. (518 mm) o6.0 in. (152 mm)
tRoof opening a3.0 in. (76 mm)

7
EN
Rooop air conditioner (air distribution box, wall thermostat controls) General information
3.7 Placement requirements
This section describes factors to consider when placing
the rooop component and the thermostat.
3.7.1 Planning the rooop location
The rooop component is specifically designed for
installation on the roof of an RV. To determine where to
place the rooop component, consider these items.
• A 14.3 in. x 14.3 in. (363 mm x 363 mm)
[±0.1in. (3 mm)] square opening and hereinaer
referred to as “roof opening” is required. The
roof opening is part of the return air system of
the rooop component and must be finished in
accordance with NFPA 1192.
• The raer/joist support frames must be spaced
no greater than 16.0 in. (406 mm) on center. The
rooop component is designed to fit over an existing
roof vent opening.
• The distance between the roof and the RV ceiling
must be between 1.5 in. (38 mm) and 6.0 in.
(152mm).
• When no roof vent is available or when another
location is desired, an opening must be cut through
the roof and ceiling of the RV. This opening must
be located between the roof reinforcing members.
Consider these recommendations along with your
cooling needs:
– For a single rooop component: mount the
rooop component slightly forward of the RV’s
center (front to back) and centered from side to side.
– For two rooop components: measuring from
the front of the RV and centering from side
to side, mount the first rooop component
at 1/3 the length of the RV and the second
rooop component at 2/3 the length of the RV.
3.7.2 Planning the thermostat location
The proper location of the thermostat is important to
ensure the unit provides a comfortable RV temperature.
To determine where to place the thermostat, consider
these items:
• Locate the thermostat 54.0 in. (1.4 m) above the floor.
• Install the thermostat on a partition, not on an outside
wall.
• Never expose the thermostat to direct heat from
lamps, the sun, or other heat-producing items.
• Avoid locations close to doors that lead outside,
windows, or adjoining outside walls.
• Avoid locations close to supply registers and the air
from them.
For thermostats installed with an optional indoor
temperature sensor in all zones, consider these
additional items:
• The thermostat may be mounted anywhere in the RV
that is convenient.
• Avoid hard to reach and hard to see areas.
• See the instructions provided with the indoor
temperature sensor for installation details.
For multiple, single zone thermostats, consider these
additional items:
• Install each individual thermostat in the room that the
AC is responsible for cooling.
• This configuration will prevent the air conditioners
from attempting to turn on at the same time and
overloading the breaker.
3.7.3 Tilt requirements
When measuring for placement, perform the following
actions.
1. Make all measurements while the RV is parked on a
level surface.
2. Install the rooop component on a flat and level roof
section.
3. Use the tilt allowance table to determine the
maximum acceptable roof tilt.
Tilt allowance
Model number Maximum tilt (all directions)
FreshJet3 series
FreshJet4 series 15°

8EN
Specifications Rooop air conditioner (air distribution box, wall thermostat controls)
4 Specifications
This section provides the electrical specifications by model.
FreshJet
model
Nominal
capacity
cooling
(BTU HR)
Electrical
rating
Compressor
amps
Fan motor
amps
Refrigerant Minimum
wire size1
AC circuit
protection2
(installer
supplied)
Minimum
generator
size3
(1 unit/
2 units)
Rated
load
Locked
rotor
Rated
load
Locked
rotor
FreshJet3 model series
FJX3473EWHAS 13,500 115 VAC,
60 HZ,
1 ph
13.6 73.0 3.3 6.9 R-410A 12 AWG 20 Amp 3.5 kW/
5.0 kW
FJX3473EBKAS 13,500
FJX3573EWHAS 15,000 115 VAC,
60 HZ,
1 ph
13.6 3.3 6.9 R-410A 12 AWG 20 Amp 3.5 kW/
5.0 kW
FJX3573EBKAS 15,000
FJX3573EHPWHAS415,000
FJX3573EHPBKAS415,000
FreshJet4 model series
FJX4373EHEWHASL High
efficiency 115 VAC, 60 HZ,
1 ph
10.6 50.0 3.054.85R-410A 12 AWG 20 Amp 3.5 kW/
5.0 kW
FJX4373EHEBKASL High
efficiency
FJX4473EWHASL 13,500 115 VAC,
60 HZ,
1 ph
13.6 73.0 3.054.85R-410A 12 AWG 20 Amp 3.5 kW/
5.0 kW
FJX4473EBKASL 13,500
FJX4573EWHASL 15,000 115 VAC,
60 HZ,
1 ph
13.6 3.054.85R-410A 12 AWG 20 Amp 3.5 kW/
5.0 kW
FJX4573EBKASL 15,000
FJX4573EHPWHASL415,000
FJX4573EHPBKASL415,000
1The wiring size indicated is for copper wiring up to 24  (7.3 m) in length. For wire lengths over 24  (7.3 m), consult the National Electrical Code for proper sizing.
2Circuit protection: a time delay fuse or circuit breaker is required.
3Dometic 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. Generators may lose power at high altitudes and from lack of maintenance.
4This model includes a heat pump.
5The FreshJet 4 series have dual fans.

9
EN
Rooop air conditioner (air distribution box, wall thermostat controls) Wiring diagrams
5 Wiring diagrams
This section provides the wiring diagrams for the product.1
1Wiring Diagram Definitions; 115 VAC; 60 Hz 1 PH; Use Copper Conductors only
- - - - - - Field wiring
---------- Factory wiring
• Line splice
* COMP START ASSIST IS OPTIONAL
* INDOOR TEMP SENSOR IS OPTIONAL
* OUTDOOR TEMP SENSOR IS OPTIONAL
CN11 TO ADB FOR COMMUNICATION
CN9 FOR 12V DC OUTPUT
CN1 TO BATTERY
4 FreshJet3 Series
* COMP START ASSIST IS OPTIONAL
* INDOOR TEMP SENSOR IS OPTIONAL
* OUTDOOR TEMP SENSOR IS OPTIONAL
CN11 TO ADB FOR COMMUNICATION
CN9 FOR 12V DC OUTPUT
CN1 TO BATTERY
5 FreshJet4 Series

10 EN
Pre-installation Rooop air conditioner (air distribution box, wall thermostat controls)
6 Pre-installation
WARNING: FIRE OR ELECTRICAL SHOCK
HAZARD. Failure to obey these warnings
could result in death or serious injury.
• Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive
(+) 12VDC terminal from the supply battery before
drilling or cutting into the RV.
• Make sure there are no obstacles such as wires or
pipes inside the RV’s roof.
• Provide grounding in compliance with all applicable
electrical codes.
CAUTION: LIFTING HAZARD.
Use proper liing technique and control when
liing the rooop component. Two people are
required to li the rooop component. to the roof.
Failure to obey this caution could result in minor or
moderate injury.
NOTICE: Failure to follow these notices could
result in damage to the rooop component and/
or the RV.
• Never create a low spot on the RV roof.
• Maintain the structural integrity of the RV roof. The
roof must be designed to support 130 lbs (59 kg)
when the RV is in motion. Normally, a 200 lb (91 kg)
static load design will meet this requirement.
• Read this entire section before beginning the
installation.
This section describes how to install and set up the unit.
6.1 Determining your cooling needs
When determining your cooling requirements, consider
the following items:
• The size of the RV
• The RV window area (which could increase heat gain)
• The amount of insulation in the walls and the roof
• The geographical location where the RV will be used
• The personal comfort level required
6.2 Preparing the thermostat
opening
1. Confirm the gas supply is shut off, and the 115 VAC
power from the RV and the positive (+)12VDC
terminal from the supply battery are disconnected.
2. Consider the dimensions and placement for a new
opening or modifying an existing opening. See
“Placement requirements” on page7.
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6 Thermostat cutout dimensions
q2.6 in. (67 mm) w4.4 in. (112 mm)
3. Create the opening for the thermostat.
4. Create a minimum 0.6 in. (16 mm) diameter hole in
the opening as required for the thermostat wiring.
6.3 Preparing the RV roof opening
NOTICE: The roof opening must be structurally framed
to provide adequate support and to prevent air from
being drawn from the roof cavity. Framing stock with
0.75 in. (19 mm) or more thickness must be used.
Remember to provide an entrance hole for power
supplies at the front of the opening. See Figure 8.
This section describes how to prepare the RV roof
opening.

11
EN
Rooop air conditioner (air distribution box, wall thermostat controls) Pre-installation
6.3.1 Using an existing roof vent opening
IIf the roof does not have an existing roof vent, go to
“Making a new roof opening” on page11.
This section describes how to prepare the RV roof when
using an existing vent.
1. Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive (+)
12VDC terminal from the supply battery.
2. Unscrew and remove the roof vent.
3. Remove the caulking compound around the
opening.
4. Seal the screw holes and seams where the roof
gasket will be located. Use a good grade of
all-weather sealant.
5. Measure the roof opening (review “Placement
requirements” on page7). If the roof opening
is within specifications, go to “Routing the supply
wiring to the roof opening” on page12.
6. If the opening needs to be resized, proceed to
“Making a new roof opening” on page11.
– If the opening exceeds 14.4 x 14.4 in.
(366 x 366mm), it will be necessary to reduce the
size of the opening.
– If the opening is less than 14.1 x 14.1in.
(358 x 358mm), it will be necessary to enlarge
the opening.
6.3.2 Making a new roof opening
IIf the roof has an existing roof vent, see “Using an
existing roof vent opening” on page11.
This section describes how to prepare the RV roof when
making a new roof opening.
1. Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive (+)
12VDC terminal from the supply battery.
2. Carefully mark the required roof opening. See
“Placement requirements” on page7.
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7 Structure for a new roof opening
qIncorrect eCorrect
wCorrect
3. Make sure the new opening does not compromise
the roof’s structural integrity.
– Do not cut the roof structure or the raers.
– The raers should remain supported by a cross
beam.
– The opening should be between the raers.
4. Carefully cut the required roof opening.

12 EN
Pre-installation Rooop air conditioner (air distribution box, wall thermostat controls)
qq
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8 Structural framing for a new roof opening
q0.8 in. (20 mm)
Minimum width for the
framing stock
e15.0 in. (381 mm)
Exposed length
of 115 VAC power
supply wire
w0.3 in. (8 mm) Minimum
width for access hole
5. Frame the opening so it will not collapse when
bolting the rooop component down.
6. At the front of the frame opening, leave or create
an access hole to allow for the length of exposed
115VAC power supply wiring required to complete
the installation.
7. Using the roof opening as a guide, cut a matching
hole in the ceiling of the RV interior.
6.4 Routing the supply wiring to the
roof opening
IThe power must be on an appropriately-sized
separate time-delay fuse or circuit breaker. See
“Specifications” on page8.
This section describes how to route the wiring for the
rooop component.
6.4.1 Routing the VAC power supply wire
1. Route the 115 VAC power supply wire, with ground,
from the time-delay fuse or circuit breaker box to
the roof opening. Use a listed/certified non-metallic
sheathed single strand cable. See “Specifications” on
page8.
IIf an AC or a vent fan were removed, the existing
power supply wire may be used provided it is of the
proper type, size, and location, and if it is correctly
fused.
2. Make sure at least 15.0 in. (381 mm) of the 115 VAC
power supply wire extends into the roof opening to
ensure an easy connection at the junction box.
6.4.2 Routing the VDC power supply wire
1. Choose one of the following options to route the 18
to 22 AWG VDC power supply wire:
– For an independent 12 VDC power supply, route
the wire from the filtered side of the RV converter
or from the battery to the roof opening.
– For an RV-C 12 VDC power supply, route the wire
from the vehicle RV-C bus to the roof opening.
2. Make sure that at least 15.0 in. (381 mm) of the
12VDC supply wire extends into the roof opening.
6.4.3 Routing the thermostat
communication cable
1. Route an 8-conductor, RJ-45 communication cable
from the roof opening to the thermostat mounting
location.
For RV-C bus communication, where a multiplexer
will control the AC, route two 18 to 22 AWG
conductors to the roof opening from the bus.
2. Make sure at least 15.0 in. (381 mm) of the cable
extends into the roof opening and 6.0 in. (152 mm)
extends from the wall at the thermostat mounting
location. See “Preparing the thermostat opening” on
page10.

13
EN
Rooop air conditioner (air distribution box, wall thermostat controls) Pre-installation
wwee
uu
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yy
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9 RV structure
qAir conditioner tBreaker box
wThermostat y12 VDC input
eFurnace (optional)
rThermostat
communication cable
uTemperature sensor
(optional)
iFurnace wires
3. If you use more than one rooop component
to manage multiple zones with an INC1015RD
thermostat, you must also complete the following
actions:
a. Route an additional 8-conductor, RJ-45
communication cable to the roof opening for
each additional rooop component.
For RV-C bus communication, where a multiplexer
will control multiple air conditioner devices:
route two 18 to 22 AWG conductors from the bus
to the roof opening of each AC.
b. Make sure that at least 15.0 in. (381 mm) of the
wire extends into the roof opening.
4. Protect all the wires where they pass into the
opening, according to local and national standards.
6.4.4 Routing the furnace wire
IUse of furnace 12 V wire for the 12V supply of the
AC control board is not approved.
If your system includes a gas furnace, you must complete
the following steps:
1. Route two 18 AWG wires from the furnace to the roof
opening of the rooop component that will control
the furnace.
2. If your system will use more than one furnace, route a
second set of 18 AWG wires from the second furnace
to the second rooop component.
6.4.5 Routing the indoor temperature
sensor wire (optional)
If your system includes an indoor temperature sensor,
you must complete the following actions:
1. Route the optional indoor temperature sensor wire
from the roof opening to the indoor temperature
sensor location.
2. Route the 2-pin connector end of the wire to the roof
opening.
3. Follow the indoor temperature sensor’s installation
instructions for proper installation.
6.4.6 Routing the load shed wire
(optional)
If you will use an Energy Management System (EMS),
or load shed feature, with the thermostat, you must
complete the following:
1. Route two EMS wires to the roof opening of the zone
to manage.
2. Terminate each wire with a 2-pin Molex Mini-Fit Jr.
receptacle.
IThe signal normally required for this function is an
open relay contact. When the EMS calls for the
compressor to shut off, the relay contacts should
close.
3. Make sure that at least 15.0 in. (381 mm) of the EMS
wire extends into the roof opening.

14 EN
Pre-installation Rooop air conditioner (air distribution box, wall thermostat controls)
6.4.7 Routing an automatic generator
start (AGS) feature via RV-C (optional)
If installing an AGS feature, you must complete one of
the following actions:
• If the generator is equipped with RV-C
communication capabilities and an AGS device:
1. Ensure that the generator and AGS device are
congured on the network.
2. Set the values relevant to the AGS as prescribed
by the RV-C specications.
• If the generator is equipped with RV-C
communication capabilities but not equipped with an
AGS device:
1. Install an RV-C compliant AGS interface device
on the network.
2. Set the values relevant to AGS as prescribed by
the RV-C specications.
The generator can be configured on the RV-C network
without an AGS.
1. Install an RV-C interface device on the network.
2. Set the values relevant to GENERATOR_COMMAND.
6.5 Positioning the rooop
component
NOTICE: Do not slide the rooop component along
a surface or damage to the gasket on the bottom of the
rooop component could occur and cause a leak.
1. Remove all the contents from the carton and discard
the carton.
2. Place all the ADB kit contents in the RV. The ADB kit
contains mounting hardware for the ADB that will be
installed inside the RV.
3. Move the rooop component to the roof.
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10 Placing the Rooop Component
qFront of the rooop
component
wRoof opening
4. Li and place the rooop component over
the prepared opening using the gasket on the
rooop component as a guide.
IThe outside work is complete. Minor adjustments
can be made from inside the RV if required.
6.6 Preparing to work inside the RV
This section describes the interior preparation.
1. Confirm the ADB kit is inside the RV.
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11 Centering the rooop component from inside the RV
qRoof gasket
2. From inside the RV, check the gasket alignment of
the rooop component over the roof opening. If
necessary, adjust the rooop component from below
by gently pushing up.

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Rooop air conditioner (air distribution box, wall thermostat controls) Installation
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12 Return Air Opening
qWiring harness wCeiling thickness
3. Reach up into the return air opening of the rooop
component and pull down the rooop component’s
electrical cord and wiring harness.
4. If the rooop component has a built-in board,
complete the following:
a. Mount the junction box to the framing in front
of the roof opening, using the installer-supplied
screws.
b. Install the strain relief.
7 Installation
WARNING: FIRE OR ELECTRICAL SHOCK
HAZARD. Failure to obey these warnings
could result in death or serious injury.
• Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive
(+)12VDC terminal from the supply battery before
drilling or cutting into the RV.
• Provide grounding in compliance with all applicable
electrical codes.
This section describes how to install and mount the wall
thermostat and optional sensor.
7.1 Installing and wiring the
thermostat and optional sensor
To install the wall thermostat, choose one of the
following options based on the type of wiring.
• “Using Independent RJ-45 Wire to Supply
Communication to the Thermostat” on page15,
or
• “Using RV-C BUS and Multiplexer to Supply CAN
Communication to the AC” on page16.
7.1.1 Using Independent RJ-45 Wire to
Supply Communication to the Thermostat
IIf installing non-RJ-45 wiring, go to “Using RV-C BUS
and Multiplexer to Supply CAN Communication to
the AC” on page16.
T-568B T-568B
T-568A T-568A
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T-568B T-568B
T-568A T-568A
13 Connecting the RJ-45 plugs to the communication cable(s)
qPin 1
1. Terminate the previously run 8-conductor
communication cable with two RJ-45 plugs
using a crimping tool. Refer to the crimping tool
manufacturer for instructions. See “Routing the
thermostat communication cable” on page12.
IThe pins of both RJ-45 plugs must match: pin1
must connect to pin1 on the other connector, pin2
must connect to pin2 on the other connector, and
continuing for all remaining pins. Pins 3 and 6 must be
twisted at minimum rate of 25 twists per 39in.(1m).

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Installation Rooop air conditioner (air distribution box, wall thermostat controls)
14 Wiring to the thermostat
2. Insert the 8-conductor communication cable through
the hole in the base plate.
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15 RJ-45 connector
qRJ-45 cable connector
3. Insert the RJ-45 connector into the RJ-45 jack on the
back of the thermostat.
4. Go to “Mounting the thermostat” on page16 to
install the thermostat onto the wall.
7.1.2 Using RV-C BUS and Multiplexer to
Supply CAN Communication to the AC
IIf installing RJ-45 wiring, go to “Using Independent
RJ-45 Wire to Supply Communication to the
Thermostat” on page15.
1. Cut back the outer cable shield 3.0 in. (76 mm) and
strip 0.3 in. (7.6 mm) of insulation from each wire.
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16 Connecting the thermostat communication cable plug to the
thermostat terminal block
qThermostat
terminal block
wThermostat
communication cable
2. Terminate the wires into a 4-pin Molex Mini-Fit Jr.
receptacle using the correct pin assignments below:
a. Connect Pin 1 to the (+) 12 V terminal.
b. Connect Pin 2 to the GND terminal.
c. Connect Pin 3 to the CAN_H (CAN Hi) terminal.
d. Connect Pin 4 to the CAN_L (CAN Lo) terminal.
3. Inspect all the connections to make sure they are tight
and not touching any other terminals or wires.
7.1.3 Mounting the thermostat
1. Avoid pinching or bending the connected wiring
cable(s) and tuck the cable(s) into the wall opening.
17 Mounting the thermostat

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Rooop air conditioner (air distribution box, wall thermostat controls) Installation
2. Insert the top edge of the display into the cutout.
3. Applying pressure over the Dometic logo, push the
bottom edge of the display until the entire display is
flush with the edges of the cutout. The display should
fit tightly into the cutout.
4. To install the optional indoor temperature sensor,
refer to the instructions provided with the indoor
temperature sensor.
7.2 Installing the electronic control
box
This section describes how to connect the power supply
and low-voltage wiring to the electronic control box.
7.2.1 Connecting the 115 VAC power
supply to the electronic control box
1. Route the previously run 115 VAC power supply wire
from the rooop component through the strain relief
and into the junction box.
2. Tighten the strain relief making sure not to damage
the wires. Leave enough wire inside the junction
box to connect to the rooop component’s 115 VAC
wires.
3. Connect the white neutral wires together, using
appropriately-sized connectors.
4. Connect the black live wires to each other, using
appropriately-sized connectors.
5. Connect the bare copper wire to the green/yellow
wire, using appropriately-sized connectors.
6. Ensure the connectors to the 115 VAC power supply
wire are secured so they do not vibrate loose.
7.2.2 Connecting the low voltage wire to
the electronic control box
NOTICE: Make sure the positive (+) 12 VDC terminal
is disconnected from the supply battery. Otherwise,
damage to the unit could occur.
1. If using independent RJ-45 wire:
a. Connect the previously run (+) 12VDC supply
wire protruding from the roof opening to the
(+)12VDC red wire at the electronic control box.
b. Connect the previously run (–)12VDC supply
wire protruding from the roof opening to the
(–)12VDC black wire at the electronic control
box.
2. If using the RV-C BUS and multiplexer, plug the 4-pin
receptacle into the 4-pin plug labeled CAN-BUS on
the electronic control box. See “Using RV-C BUS and
Multiplexer to Supply CAN Communication to the
AC” on page16.
3. Connect the previously run furnace thermostat wires
protruding from the roof opening (if applicable) to
the blue wires at the electronic control box. The
polarity of these connections does not matter.
4. If you performed “Using Independent RJ-45 Wire
to Supply Communication to the Thermostat” on
page15, plug the RJ-45 cable into either RJ-45 jack
on the electronic control box labeled as CAN/CMC.
If more than one zone is used, the second jack is used
to join each additional zone.
5. Plug the indoor temperature sensor cable (if
applicable) into the 2-pin plug labeled ROOM
SENSOR on the electronic control box.
6. If equipped with an Energy Management System,
terminate the previously run Energy Management
System wires with a 2-pin Molex Mini-Fit Jr.
receptacle.
7. Plug the 2-pin Molex Mini-Fit Jr. receptacle into the
2-pin plug labeled as LOAD SHED on the electronic
control box. The polarity of this connection does not
matter.
7.3 Configuring the electronic
control box
This section describes how to set the DIP switches for
your unit’s electronic control box and to complete the
system reset.

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Installation Rooop air conditioner (air distribution box, wall thermostat controls)
7.3.1 Locating the DIP switches
ON
1 2 3 4 5 6 7 8 9 10
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18 Electronic control box DIP switch location
qDIP switch wElectronic control box
The electronic control box is located at the return air
opening on the base of the AC and the DIP switches are
visible through the opening.
The DIP switches are set to the Off position when
shipped from the factory, except for heat pump models.
Placing the switch in the On position selects that option.
7.3.2 Setting the DIP switches
This section describes the appropriate electronic
control box DIP switch settings. The position should be
set to the appropriate On or Off position based on the
equipment options installed by the RV manufacturer.
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19 DIP switch board
qOn or closed switch position
wOff or open switch position
If your RV has more than one electronic control box
installed, configure each electronic control box with the
appropriate DIP switch settings.
If necessary, press each switch On (Closed) or Off (Open)
according to the following configuration table.
DIP switch setting configuration
DIP location Description
1 Zone 2 Each thermostat can have up to four
zones. If only one rooop component is
installed, it becomes zone 1 by default
and DIP switch settings for zones 2, 3, or
4 are not required.
If more than one rooop component is
installed, assign each rooop component
a separate zone (2 through4). Each
rooop component must have a different
zone setting.
2 Zone 3
3 Zone 4
4 Stage For applications requiring two
rooop components to work together in
the same zone, set the Stage DIP switch
to the On position.
Otherwise, leave in the Off position.
5 Furnace1If a Furnace/hydronic heating
system has been connected to this
rooop component, set the Furnace DIP
switch to the On position.
Otherwise, leave in the Off position.
6 Gen Start1To configure the Automatic Generator
Start for a new installation, refer to
“Routing an automatic generator start
(AGS) feature via RV-C (optional)” on
page14. Leave this DIP switch in
the Off position, unless it is required for
backwards compatibility using the CMC
protocol.
7 Heat Strip1Leave this DIP switch in the Off position,
unless it is required for backwards
compatibility using the CMC protocol.
8Heat Pump2For Heat Pump models, this DIP switch is
set in the On position from the factory.
For non-Heat Pump models, change this
DIP switch to the Off position.
9 Dehumidify1The Dehumidify is not used on this
rooop component.
Leave this DIP switch in the Off position,
unless it is required for backwards
compatibility using CMC protocol.
10 120 ohm
CAN
termination
resistor
1,3
This DIP switch is in the On position from
the factory to enable RV-C (CAN BUS)
communication. Only the first and last
devices on the CAN bus should enable
the 120 ohm termination resistor.
1 Climate Module Communication (CMC) only
2Current or CMC communication only
3ON by default for RV-C

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Rooop air conditioner (air distribution box, wall thermostat controls) Installation
7.4 Installing the foam dividers
Roof thicknesses vary among RVs and the ADB
installation may require additional foam to fill any gaps in
thicker roofs.
This section describes how to determine if additional
foam dividers are required, the number required, and
the installation method.
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20 Measuring the roof thickness for foam divider installation
qCeiling opening eRoof thickness
wRooop model unit
basepan
1. Inspect the ADB and the mounting hardware placed
inside the RV at the beginning of “Positioning
the rooop component” on page14. See
“ADB components” on page5 for the parts
configuration.
2. Measure the roof thickness, from a flat surface of the
installed rooop component’s basepan to the ceiling
opening inside the RV.
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21 Stacking the foam dividers and placement location
qStacked foam
dividers
tFoam divider -
0.4in. (10mm) (2)
wRoof thickness
eTop foam -
0.4in. (10mm) (1)
yFoam divider -
1.2in. (30mm) (3)
uADB adaptor (1)
rTop foam ring -
0.4in. (10mm) (1)
3. Identify the different types and sizes of foam dividers.
4. Using the tables in “Roof thickness 6.0to 7.5 in. (152
to 191 mm)” on page22 and in “Roof thickness
1.25 to 5.5 in. (32 to 140 mm)” on page21,
determine the number and combination of foam
dividers required based on the roof thickness.

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Installation Rooop air conditioner (air distribution box, wall thermostat controls)
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22 Confirming the foam divider height measurement
qFlat surface of the ADB eFull height
measurement (equal
to the roof thickness)
wStack of foam dividers
5. Place the ADB face down on a stable, protected, flat
surface.
6. Stack the foam dividers required and place them onto
the ADB.
7. Measure the full height, from the flat surface of the
ADB to the top of the foam dividers to confirm the
full height is equal to the previously determined roof
thickness.
8. Adjust the number of foam dividers to reach the
correct full height, as necessary.
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23 Passing the wire through the filter notch
qFilter e2-Conductor light cable
wFilter notch
9. Slide out the filter to expose the filter notch.
10. Pass the 2-pin lighting cable (if equipped) through
the filter notch.