This Unit Is Designed For OEM Installation. All Initial
Installations Must Be Approved By Dometic Corporation
This manual must be read and understood before installation, adjustment, service, or maintenance
is performed. This unit must be installed by a qualified service technician. Modification of this product
can be extremely hazardous and
could result in personal injury or
property damage.
Important: These Instructions
must stay with unit.
Owner read carefully.
1
Lire et comprendre ce manuel avant de
procéder à l'installation, à des réglages,
de l'entretien ou des réparations.
L'installation de cet appareil doit être
effectuée par un réparateur qualifié.
Toute modification de cet appareil peut
être extrêmement dangereuse et
entraîner des blessures ou dommages
matériels.
This manual has safety information and instructions to help users eliminate or reduce the risk of
accidents and injuries.
RECOGNIZE SAFETY INFORMATION
!
This is the safety-alert symbol. When you see this
symbol in this manual, be alert to the potential for
personal injury .
Follow recommended precautions and safe operating instructions.
UNDERSTAND SIGNAL WORDS
GENERAL INFORMATION
A. Product features or specifications as described or illus-
trated are subject to change without notice.
B. This air conditioner is designed for:
1. Installation on a recreational vehicle during the time
the vehicle is manufactured.
2. Mounting on the roof of a recreational vehicle.
3. Connection to an air distribution system located in
the ceiling/roof cavity of the recreational vehicle.
4. Roof construction with rafters/joists on minimum of
16 inch centers.
5. Minimum of 2.00" and maximum of 5.50" distance
between roof to ceiling of recreational vehicle. Alternate installation methods will allow for roofs more
than 5.50" thick.
C. The ability of the 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 vehicle 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. Avoiding the use of heat producing appliances.
A signal word , WARNING OR CAUTION is used
with the safety-alert symbol. They give the level of
risk for potential injury .
WARNING
!
indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury .
CAUTION
!
indicates a potentially hazardous situation which, if not avoided may result in
minor or moderate injury .
CAUTION
used without the safety alert
symbol indicates, a potentially hazardous situation which, if not avoided may result in property
damage.
Read and follow all safety information and instructions.
Operation on High Fan/Cooling mode will give optimum or
maximum efficiency 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 A&E 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
Note: The manufacturer of this air conditioner will not be
responsible for damage caused by condensed moisture on
ceilings or other surfaces. Air contains moisture and this
moisture tends to condense on cold surfaces. When air
enters the RV, condensed moisture may appear on the
ceiling, windows, metal parts, etc. The air conditioner removes this moisture from the air during normal operation.
Keeping doors and windows closed when this air conditioner
is in operation will minimize condensed moisture on cold
surfaces.
When sizing the generator, the total power usage of your recreational vehicle must be considered. Keep in mind generators lose power at high altitudes
an dfrom lack of maintenance.
*For wire length over 24 ft., consult the National Electric Code for proper sizing.
**Dometic Corporation gives GENERAL guidelines for generator requirements. These guidelines come from experiences people have had in actual applications.
*** CIRCUIT PROTECTION: Time Delay Fuse or HACR Circuit Breakers Required.
Improper installation may damage equipment,
could endanger life, cause serious injury and/
or property damage.
1. Read Installation and Operating instructions carefully before attempting to start your air conditioner
installation.
2. Dometic Corporation will not be liable for any damages or injury incurred due to failure in following
these instructions.
3. Installation must comply with the National Electrical Code ANSI/NFPA-70 and CSA Standard C22.1
(latest edition) and any State or Local Codes or
regulations.
4. DO NOT add any devices or accessories to this air
conditioner except those specifically authorized by
Dometic.
5. This equipment must be serviced by qualified personnel and some states require these people to be
licensed.
B. Choosing Proper Location For The Air
Conditioner
This air conditioner is specifically designed for installation on
the roof of a recreational vehicle (RV). When determining
your cooling requirements, the following should be considered:
•Size of RV;
•Window area (increases heat gain);
•Amount of insulation in walls and roof;
•Geographical location where the RV will be used;
•Personal comfort level required.
1. Normal Location-The air conditioner is designed to
fit over an existing roof vent opening. When the vent
is removed, it normally creates a 14-1/4" X 14-1/4"
(±1/8") opening.
FIG. 2
1/2 L
L
2/3 L
L
1/3 L
It is preferred that the air conditioner be installed in a relatively
flat and level roof section measured with the RV parked on
a level surface.
Note: A 8° slant to either side, or front to back, is acceptable
for 620515, 620525, 620526, 630515 and 630516 series.
3. After Location Has Been Selected:
a. Check for obstructions in the area where air
conditioner will be installed. See FIG. 3 & 4.
b. The roof must be designed to support 130
poundswhen the RV is in motion. Normally a
200 lb. static load design will meet this requirement.
It is the responsibility of the installer of this
air conditioner system to ensure structural integrity of the RV roof. Never create a low spot
on the roof where water will collect. Water
standing around the air conditioner may leak
into the interior causing damage to the product and the RV.
c. Check inside the RV for return air cover obstruc-
tions (i.e. door openings, room dividers, curtains, ceiling fixtures, etc.) See FIG. 3 & 4.
FIG. 3
FIG. 1
Roof Vent
Opening
2. Other Locations-When no roof vent is available or
another location is desired, the following is recommended:
a. For one unit installation: The air conditioner
should be mounted slightly forward of center
(front to back) and centered from side to side.
b. For two unit installations: Install one Air Condi-
tioner 1/3 and one Air Conditioner 2/3’s from
front of RV and centered from side to side.
2. Roof Vent Removal
a. Unscrew and remove the roof vent.
b. Remove all caulking compound around open-
ing.
FIG. 5
1-1/2"
17"
1-1/4"
1-1/2"
17"
1-3/4"
14-1/4 x 14-1/4 (±1/8")
3"
2"
3"
2"
20-7/8"
Genesis
Opening
C. Roof Preparation
1. Opening Requirments - Before preparing the ceiling
opening, the type of system options must be decided upon. If a remote sensor is to be used,
provision must be made for it. If the load shed option
is to be used, wires must be run from the load shed
control to the Dometic A/C. If a furnace is to be
connected, wires must be run from the furnace to the
Dometic A/C. Read all of the following instructions
before beginning the installation.
If a roof vent opening will not be used a 14-1/4" x 141/4" (±1/8") opening must be cut through the roof and
ceiling of the RV. This opening must be located
between the roof reinforcing members.
18-1/2"
c. Seal all screw holes and seams where the roof
gasket is located. Use a good grade of all
weather sealant.
d. If the opening exceeds 14-3/8" x 14-3/8", it will
be necessary to install spacers.
e. If the opening is less than 14-1/8" x 14-1/8", it
must be enlarged.
3. New Opening-(Installation Other Than Vent Opening)
a. Mark a 14-1/4" x 14-1/4" (±1/8") square on the
roof and carefully cut the opening.
b. Using the roof opening as a guide, cut the
matching hole in the ceiling.
d. The opening created must be framed to provide
adequate support and prevent air from being
drawn from the roof cavity. Lumber 3/4" or more
in thickness must be used. Remember to provide an entrance hole for power supplies, furnace wiring, 4-conductor control cable, remote
sensor and load shed (Energy Management
System) options as desired.
FIG. 6
There may be electrical wiring between the
roof and the ceiling. Disconnect 115 volt AC
power cord and the positive (+) 12 volt DC terminal at the supply battery. Failure to follow
this instruction may create a shock hazard
causing death or severe personal injury.
The 14-1/4" x 14-1/4" (±1/8") opening is part of the
return air system of the Air Conditioner and must be
finished in accordance with NFPA Standard 501C
Section 2.7.2.
Do Not Cut
Roof Strucure
Or Rafters
Leave Access For
Power Supply Wiring
5
Good-Rafters
Supported By
Cross Beams
3/4" Min.
Good LocationBetween Roof
Rafters
Frame Opening So It
Won't Collapse When
Bolting Down
15" min.
Page 6
CAUTION
CAUTION
CAUTION
It is the responsibility of the installer of this
air conditioner system to ensure structural
integrity of the RV roof. Never create a low
spot on the roof where water will collect. Water standing around the air conditioner may
leak into the interior causing damage to the
product and the RV.
4. Air Distribution System Sizing & Design (See Chart
On Page 7)
CAUTION
It is the responsibility of the installer to insure
the ductwork will not collapse or bend during
and after the installation. Dometic Corporation
will not be liable for roof structural or ceiling
damage due to improperly insulated, sealed
or collapsed ductwork.
The Installer of this air conditioner system must design
the air distribution system for this particular application.
Several requirements for this system MUST be met for
the air conditioner to operate properly. These requirements are as follows:
FIG. 7
FRAME
INSULATION
DUCT
LOW VOLTAGE WIRES:
12VDC
Furnace
Load Shed
Sensors
ROOF
(TOWARD BACK OF RV)
DUCT
a. The duct material must meet or exceed any
agency or RVIA Standard that may be in existence at the time the RV is produced.
b. All discharge air ducts must be properly insu-
lated to prevent condensation from forming on
their surfaces or adjacent surfaces during operation of the air conditioner. This insulation
must be R-7 minimum.
c. Ducts and their joints must be sealed to prevent
condensation from forming on adjacent surfaces during operation of the air conditioner.
e. Return air to the air conditioner must be filtered
to prevent dirt accumulation on air conditioner
cooling surface.
5. Air Distribution System Installation
a. Dometic Corporation recommends the basic
configuration shown on page 8, for installing this
air conditioner system. We have found by testing, that this configuration works best in most
applications of this air conditioner system. It is
the responsibility of the Installer of this system
to review each RV floor plan and determine the
following:
•Duct size
•Duct layout
•Register size
•Register location
•Thermostat location
These items must be determined in conjunction with the
Air Distribution System and Sizing and Design Requirements listed in the chart on page7. Terminate the start
of the duct at the back edge of the 14-1/4" x 14-1/4" (±1/
8" opening)
Important: Alternate configurations and methods
may be used which still allow the air conditioner to
operate properly; however, these alternate configurations and methods must be approved by the Dometic
Corporation in writing. The following instructions are
based upon the use of Dometic Return Air Kits
3105007.XXX, 3105935.XXX, or 3308120.XXX Genesis
Air Filtration System. The 3107180.006 Bolt/Cover Kit
has the mounting bolts and cover for the AC junction
box for use with these kits.
D. Wiring Requirments
1. Route a copper 12 AWG, with ground, 115 VAC
supply line from the fuse or circuit breaker box to the
roof opening.
a. This supply line must be located in the front
portion of the 14-1/4" x 14-1/4" (±1/8") opening.
b. The power MUST be on a separate 20 amp time
delay fuse or HACR circuit breaker.
c. Make sure that at least 15" of supply wire
extends into the roof opening. This ensures
easy connection at the junction box.
d. Wiring must comply with all National, State and
Local Wiring Codes.
e. Use a steel sleeve and a grommet or equivalent
methods to protect the wire where it passes into
the opening.
2. Route a dedicated 12 VDC supply line (18-22 AWG)
from the RV's converter or battery to the roof opening.
a. This supply line must be located in the front
portion of the 14-1/4" x 14-1/4" (±1/8") opening.
b. Make sure that at least 15" of supply wire
extends into the roof opening.
c. In a multiple zone installation, this wiring is
required in only one of the 14-1/4" x 14-1/4"
(±1/8") openings.
Air Distribution Duct Sizing & Design Chart For Ducted Applications
Return Air Cover Model3105007.XXX3308120.XXX
3105935.XXXGenesis Air Filtration System
Roof Cavity Depth2.0 In. Min. - 5-1/2 In. Max.2.0 In. Min. - 5-1/2 In. Max.
Duct Cross Sectional Area21.0 Sq. In. Min.32.0 Sq. In. Min.
Duct Size
Depth1-1/2 In. Min. - 2-1/2 In. Max.2.0 In. Min. - 2-1/2 In. Max.
Width7.0 In. Min. - 10.0 In. Max.8.0 In. Min. - 10.0 In. Max.
T ot al Duct Length15.0 Ft. Min. - 40.0 Ft. Max.15.0 Ft. Min. - 40.0 Ft. Max.
Duct Length (short run)1/3 Total Duct Length1/3 Total Duct Length
Center Duct System (Only)
Depth2.0" In. Min. - 2.0" Max.
Width8.0 In. Min. - 8.0 In. Max.
T ot al Duct Length15.0 Ft. Min. - 40 Ft. Max.
Duct Length (Short Run)1/3 T otal Length
Register Requirements
Number Required Per Run4 Min.4 Min.
Register Free Air Area14.0 Sq. In.14.0 Sq. In.
Distance From Duct End5.0 In. Min. - 8.0 In. Max.5.0 In. Min. - 8.0 In. Max.
Distance From Elbow15.0 In.15.0 In.
T ot al System St atic Air Pressure
Blower at High Speed,
Filter & Grill In Place0.12 - 0.65 In. W.C.0.12 - 0.65 In. W.C.
Note: Duct sizes listed are inside dimensions.
3. If a Remote Temperature Sensor is used, the connector end must be routed to the roof opening of the
system which it will control. Make sure that at least
15" of the sensor cable extends into the roof opening. Refer to the Remote Sensor Instructions for
details of the installation. See Section E-1.
4. If a furnace is to be controlled by the system, the two
furnace thermostat leads must be routed to the roof
opening of the air conditioner that will control it.
Make sure that at least 15" of the furnace thermostat
wires extend into the roof opening.
5. If an Energy Management System (load shed feature) is to be used with the control, two wires must
be routed to the roof opening of the zone to be
managed. The signal required for this function is
normally open relay contact. When the EMS calls
for the compressor to shut off, the relay contacts
should close. Make sure at least 15" of the EMS
wires extend into the roof opening.
6. Route a 4-conductor control cable from the ComfortControl Center™ mounting position into the
14-1/4" x 14-1/4" (±1/8") roof opening. Make sure
that at least 15" of the wire extends into the roof
opening and 6" extend from the wall at the mounting
position of the Comfort Control Center™. See
Section E-2.
7. In the event that other Air Conditioners are installed
(additional zones) an additional 4-conductor control
cable must be routed to the other Air Conditioners.
Make sure that at least 15" of the wire extends into
the roof opening. See FIG. 31.
8. If an automatic generator start kit (AGS) will be
installed, a 4-conducter control cable must be
routed from the last air conditioner to location of
AGS kit. Follow AGS kit instructions for installation.
E. Dometic Comfort Control Center™ & Cable
Installation
1. Location
a. If the system is to be used WITHOUT a Re-
mote Temperature Sensor, the proper location of the Comfort Control Center™ is very
important to ensure that it will provide a comfortable RV temperature. Observe the following
rules when selecting a location:
2. Installation Of Divider Plate
aMeasure the ceiling to roof thickness:
Front of Vehicle
Roof
Gasket
Tighten to
compress gasket
to 1/2"
Finger
Tight
•If distance is 2.0" - 3-3/4", remove perfo-
rated tab from divider plate.
•If distance is 3-3/4" - 5-1/2", remove no tabs.
b. Remove the backing paper from double sided
tape located on ceiling template. See FIG. 17.
FIG. 17
Fasten Junction Box
To Front Of Opening
e. Install the Romex connector in the junction box.
f.Hold the ceiling template up to the 14-1/4" x
14-1/4" (±1/8") opening. Be sure the large plate
faces the rear of the RV .
•S tart each mounting bolt through the ceil-
ing template and up into the unit base pan
by hand. Install wood screw in each end of
the ceiling template. This insures a tight fit
of the return air cover to ceiling. See FIG.
16.
•EVENLY tighten the bolts to a torque of
40 to 50 inch pounds. This will compress
the roof gasket to approximately 1/2".
The bolts are self locking so over tightening is not necessary. See FIG. 16.
CAUTION
If bolts are left loose there may not be adequate roof seal or if over tightened, damage
may occur to the air conditioner base or ceiling template. Tighten to specifications listed
in this manual.
c. Place divider plate up to bottom of air condi-
tioner base pan firmly. The foam tape on the
divider plate must seal to bottom of base pan.
See FIG . 17.
Improper installation and sealing of divider
plate will cause the compressor to quick cycle
on the cold control. This may result in fuse or
circuit breaker opening and/or lack of cooling.
FIG. 18
10
Page 11
Note: The adhesive on the insulation is extremely sticky.
Micro-Therm
Filter
System
FILTER
RESET
CLEAN
FILTER
Be sure the part is located where desired before pressing
into place.
d. With slight pressure then push the divider plate
against the double sided tape on the ceiling
template.
e. Locate the 1/8" x 7" x 18" self -adhesive insula-
tion supplied with the return air kit. Remove the
backing paper from the insulation and carefully
stick onto the ceiling template divider panel.
See FIG. 19.
FIG. 19
•Excess width is intended to seal the di-
vider plate to the sides of the 14-1/4" x 141/4" (±1/8") opening. This is to help prevent cold air discharge from circulating into
the air conditioner return air opening.
•If the insulation is too high, stick excess
height of insulation to the air conditioner
base pan. Do not cover up unit rating plate.
Installing unit with 3308120.XXX Genesis Air Fil-
tration System Return Air Kit. For unit with
3105007.XXX or 3105935.XXX Return Air Kit, see
page 9.
Note: The Genesis Air Filtration System can be installed on
the units that use a center discharge duct through the 14-1/
4" x 14-1/4" (±1/8") opening. Installing units with the center
discharge duct go to page 12 "Section 2" Center Duct Installation.
a. Check gasket alignment of the air conditioner
over the roof opening and adjust if necessary .
Unit may be moved from below by slightly lifting. See FIG. 14.
•Remove return air cover, ceiling template,
foam divider and air filter from the 3308120
carton.
•Locate the four 8" x 1/4" x 20 unit mount-
ing bolts, junction box cover and Romex
connector in the 3107180.006 bolt kit.
•Install the Romex connector in the junc-
tion box.
•Pull down the unit's electrical cord and fas-
ten the junction box with screws to the framing in the front of the 14-1/4" x 14-1/4" (±1/
8") opening. See FIG. 15.
b. Installing Foam Divider
•Locate the foam divider and insert it corner
to corner in the 14-1/4" x 14-1/4" (±1/8")
opening with the adhesive tape up. (Do not
remove paper to expose adhesive). The
foam divider should be level with the ceiling
(±1/4"). T ear off the excess at the pre-cut
perforations in divider . See FIG . 21.
FIG. 21
Base Pan
Upside
Down
Foam
Divider
Place Foam Divider In
(14-1/4" x 14-1/4" (±1/8")
Ceiling Opening Against Base
Pan Bottom
Do Not Peel Tape Off
Adhesive
Ceiling
Foam Divider Ceiling
Level
(±1/4") T ear Off
Excess
c. Install Ceiling T emplate
•Peel the paper off of the foam divider and
stick it in place on the center of the rear
flange of the return air opening on the ceiling template. See FIG . 22.
FIG. 22
Foam Divider
r
e
t
l
i
F
m
r
e
h
T
-
o
r
c
i
Handle
M
m
e
t
s
y
S
N
A
E
L
C
R
E
R
E
T
T
L
L
I
I
F
F
T
E
S
E
R
Adhesive
Peel Off Paper - Center Divider - Stick To
Rear Flange On Ceiling Template
ing template and up into the unit base pan
by hand.
•EVENLY tighten the bolt s to a torque of
40 to 50 inch pounds. This will compress
the roof gasket to approximately 1/2".
The bolts are self locking so over tightening is not necessary. See FIG. 16.
CAUTION
If bolts are left loose there may not be adequate roof seal or if over tightened, damage
may ocur to the air conditioner base or ceiling
template. Tighten to specifications listed in
this manual.
d. Use Aluminum foil tape (not supplied) to seal
the ends of the foam divider to the sides of the
opening. Make sure the area behind the flange
on the ceiling template is sealed. See FIG . 23.
FIG. 23
Route wires
through Slot
Use Aluminum Foil Tape To Seal the
Foam Divider To The Sides of 14-1/4"
x 14-1/4" (±1/8") Ceiling Opening
Catch Flange In Groove Of
Return Air Cover
Make Sure To Seal
Behind Flange
•Pull down the unit's electrical cord and fas-
ten the junction box with screws to the
framing in the front of the 14-1/4" x 14-1/4"
(±1/8") opening. See FIG . 19.
•Install the Romex connector in the junc-
tion box.
b. Installing Foam Divider
•Cut notch in the center section of the foam
divider to fit (approximately 2 x 8 inches)
snugly around duct. See FIG. 24.
FIG. 24
Foam
Divider
•Place the foam divider in the return air open-
ing above the center duct before ceiling template.
c. Install Ceiling T emplate
•Apply a piece of foam weather stripping (not
supplied) to the upper side of ceiling template to make a seal between it and the
duct. Use a soft piece of foam weather strip
1 x 3/4 x 10 inches. See FIG. 25.
FIG. 25
Tape Covered
Adhesive
Mark And Cut 2" x 8"
Opening For Center Duct
Stick Weather Strip To Top
Of Ceiling Template
CAUTION
Improper installation and sealing of foam divider will cause the compressor to quick cycle
on the cold control. This may result in fuse or
circuit breaker opening and/or lack of cooling.
2. Center Discharge Duct Application Installation
Note: If using non-center duct installation, refer to all NonCenter Duct Installations Section 1on page 1 1.
Important: A duct adapter (not supplied) must be installed
between the unit discharge and the customer installed center duct. This duct adapter must be approved by Dometic.
a. Check gasket alignment of the air conditioner
over the roof opening and adjust if necessary .
Unit may be moved from below by slightly lifting and sliding. See FIG. 14.
•Remove return air cover, ceiling template,
foam divider and air filter from the 3308120
carton.
•Locate the four 8" x 1/4 x 20 unit mounting
bolts, junction box cover and Romex connector in the 3107180.006 bolt kit.
Ceiling
Template
Weather Strip
•Start each mounting bolt through the ceil-
ing template and up into the unit base pan
by hand.
•EVENLY tighten the bolt s to a torque of
40 to 50 inch pounds. This will compress
the roof gasket to approximately 1/2".
The bolts are self locking so over tightening is not necessary. See FIG. 16.
If bolts are left loose there may not be adequate roof seal or if over tightened, damage
may ocur to the air conditioner base or ceiling
template. Tighten to specifications listed in
this manual.
12
Page 13
d.Use Aluminum foil t ape (not supplied) to seal
the ends of the foam divider to the sides of the
opening. Make sure the area behind the flange
on the ceiling template is sealed. See FIG . 23.
CAUTION
Improper installation and sealing of foam divider will cause the compressor to quick cycle
on the cold control. This may result in fuse or
circuit breaker opening and/or lack of cooling.
e.Cut the opening in the center duct using the
discharge opening in the ceiling template for a
pattern. Seal the center duct to the ceiling template using foil tape, foam insulation or silicon
sealant.
H. Wiring Of System
Reach up into the return air opening and pull the remaining
wires down.
Installation (Installing unit with 3308120.XXX
Genesis Filtration System Return Air Kit)
c. Connect the previously run furnace thermostat
wires (if applicable) to the blue wires protruding
from the return air opening. The polarity of these
connections does not matter.
d. Connect the previously run Energy Manage-
ment System wires (if applicable) to the yellow
wires protruding from the return air opening. The
polarity of these connections does not matter.
e. Terminate the 4-conductor control cable(s) pro-
truding into the 14-1/4" x 14-1/4" (±1/8") roof
opening. The cable(s) must be terminated with
a telephone RJ-11 connector. Refer to the crimp
tool manufacturer for crimping instructions.
Important: RJ-11 connectors must be installed as
shown in FIG. 6A & 6C.
f.Plug the control cable(s) into the telephone
jack(s) protruding from the return air opening. (It
does not matter which one.)
2. Connection Of 115 Volt Power Supply
CAUTION
Disconnect the positive (+) 12 volt DC terminal at the supply battery. Damage to equipment could occur if the 12 volt DC is not shut
off.
a. Route Remote Temperature Sensor cable, if
applicable, and attach it to the connector that
matches its color protruding from the return air
opening.
FIG. 26
DC Power
Supply
Furnace
b. Connect the previously run 12 VDC to the red
Center Unit From Below
AC Power
Supply
Roof
Gasket
CCC
Leads
Remote
Sensor
an dblack wires protruding from the unit return
air opening. (In multiple zone installations, this
needs to be doneat only one zone.) Connect
+12 VDC to the red wire; –12 VDC to the black
wire. (Do not connect wires if using the
3308120.XXX Genesis Air Filtration System
Return Air Kit.) See Section I Decorative Cover
Pull Electrical
Cord Down
Disconnect 115 volt AC. Failure to follow these
instructions could create a shock hazard
causing death or severe personal injury.
a. Route power supply line through Romex con-
nector into junction box on side away from the
ceiling template. Tighten connector.
This product is equipped with a 3-wire
(grounded) system for protection against
shock hazard. Make sure that the product is
wired into a properly grounded 115 volt AC
circuit and the polarity is correct. Failure to do
so could result in death, personal injury or
damage to the equipment.
b. Connect white to white; black to black; and
green to green or bare copper wire using appropriate sized twist connectors.
c. Tape the twist wire connectors to the supply
wire to assure they don't vibrate off.
d. Push the wires into the box.
e. Install the cover onto the junction box.
I .Decorative Cover Installation
Installing unit with 3105007.XXX or 3105935.XXX
Return Air Cover . For Genesis Air Filtration system
Return Air Kit See Page 14.
Note: On models equipped with a solar panel, see wiring
instructions for the solar panel before proceeding.
1.Remove the return air grill from the return air cover.
2.Place the return air cover up to the ceiling template.
13
Page 14
Micro-Therm
Filter
System
FILTER
RESET
CLEAN
FILTER
DIP
SWITCHES
3.Install cover to template with # 8 x 3/8" blunt point
Phillips head screws provided (6 required).
4.Reinstall filter return air grill into return air cover.
Align tabs with mating notches and snap into place
5.Install two hole plugs into screw holes in back of
return air cover. See FIG. 27.
b. Connect the black wire from the air conditioner
and the black wire from the filter indicator light
with the black negative 12VDC supply wire.
See FIG. 23.
Note: Number 10 cabinet screw can be used to replace the
two front screws to hold the plastic cover flush to the ceiling, if required.
5.Tighten the screws holding the return air cover . Slide
the filter from the right side (looking toward the RV
front) over the wires. Make sure the wires are secured above the filter and are out of its way .
6.Place grill on return air cover and snap in place.
Decal is on end over circuit board.
7.Place slide handle through slots in grill into the
slide posts. Handle will fit in either direction.
Installing unit with 3308120.XXX Genesis Air Filtra-
tion System Return Air Kit. For 3105007.XXX or
3105935.XXX Return Air Kit See Page 13.
Note: On models equipped with a solar panel, see wiring
instructions for the solar panel before proceeding.
FIG. 28
Foam
Divider
Slider
Return Air
Cover
r
c
i
Handle
M
1. Install the slider in the return air cover and raise it
to the ceiling template. See FIG. 28.
2. Route the wires from the return air cover through
the template slot leaving about 3" between, and
position wire here so they can be reached after
plastic cover is installed. See FIG. 23.
3. Place the front of the return air cover against the
ceiling and slide towards the rear. The flange on
the ceiling template will catch in the groove on the
return cover. Adjust the position (right to left) and
install the front two screws. Start and tighten the
remaining screws to hold it in place.
4. Connect together the wires from the thermostat,
control box and filter indicator.
a. Connect the red wire from the air conditioner
and the red wire from the filter indicator light
with the red positive 12VDC supply wire. See
FIG. 23.
S
r
e
t
l
i
F
m
r
e
h
T
o
m
e
t
s
y
L
C
R
E
T
L
I
I
F
F
T
E
S
E
R
Ceiling
Template
Filter
Grill
N
A
E
R
E
T
L
J. System Configuration, Reset & Checkout
1. Electronic Control Configuration
Depending on the equipment options installed by the
recreational vehicle manufacturer, the appropriate dip
switches will need to be switched to the "ON" position.
See Fig. 29. Placing the switch in the "ON" position
selects that option.
Note: Dip switches are in the "OFF" position when shipped
from the factory except for models supplied with the heat strip
factory installed, (620515). For this model , the #1 dip switch
will be in the "ON" position. To gain access to the dip
switches, the shroud must be removed from the unit. Remove
the four mounting screws around the perimeter of the unit.
Next remove the electrical box cover. (The electrical box will
be on the curb side of the RV after installation.)
ON
12 345
HEAT STRIP
ZONE 2
ZONE 3
ZONE 4
FURNACE
678
DIFFERENTIAL
STAGE
GEN START
a. Zone selection - when two or more units are
installed and controlled by one Comfort Con-
trol CenterTM, the second unit becomes Zone
2, the third unit Zone 3, and the fourth unit Zone
4. The appropriate zone dip switch must be set
in each electronic control box for the Zone 2, 3
14
and 4.
FIG. 29
DIP
SWITCHES
Page 15
MODE
FAN
UP
DOWN
OFF
ON
ZONE
TEMP
b. Heat Strip selection - For units with a heat strip
installed at the factory (Model 620515), the #1
dip switch will be in the "ON" position. All other
models will have the dip switches in the "OFF"
position.
c.Heat pump models (630515 or 630516) must
have the red plug of the outdoor ambient sensor
plugged into the RED (P3) plug.
d. Furnace selection - when a furnace has been
connected to a zone, place the furnace dip
switch "ON" for that zone.
e.Differential - differential is the temperature differ-
ence between the "ON/OFF" cycle of the thermostat. The normal differential is preset in the
circuit board with the dip switch set to the "OFF"
position. In some situations, it may be necessary to decrease the Differential. The location of
the thermostat may create a condition where
the normal Differential will not maintain your
comfort zone. If this occurs, the Differential can
be shortened by placing the Differential dip
switch in the "ON" position.
Note: Setting the Differential dip switch should only be
required when the installation conditions are less than
desirable and is not covered under the limited warranty.
f.STAGE is not used on these units. Leave in the
"OFF" position.
g. Gen start selection - leave in the "OFF" position.
h. Replace the unit electrical box cover.
i.Replace the shroud.
j.Repeat this procedure for each additional zone.
2.System Reset
After setting the dip switches in the electric box, do a
system reset. See FIG. 30.
a. Turn the ON/OFF switch to the "OFF" position.
b. Simultaneously Depress and hold the MODE
and ZONE push-buttons while turning the ON/
OFF switch to "ON". FF should appear in the
LCD display until the MODE and ZONE pushbuttons are released.
c. When a dip switch is turned on or off after initial
configuration, a system reset will need to be
done before the Comfort Control Center
TM
will
recognize the updated selection.
3. System Checkout
We recommend that power be supplied to the air
conditioner and check for proper operation. Verify that all
features of the installed system work. See ComfortControl Center™ Operating Instructions. Check fan
speeds, cooling mode, heat pump mode, furnace (if
connected) and heat strip. If the features do not work,
check all wiring and confirm that the correct options have
been selected on the Electronic Control Board.