RV Parts Country's Guide to Installing a 13,500 Dometic A/C

INSTALLATION INSTRUCTIONS:
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.
INSTALLATION INSTRUCTIONS
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.
For two unit installations: Install one Air Conditioner 1/3 and one Air Conditioner 2/3’s from
front of RV and centered from side to side.
It is preferred that the air conditioner be installed on
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 all units.
3. After Location Has Been Selected:
a. Check for obstructions in the area where air
conditioner will be installed. See FIG. 4.
b. The roof must be designed to support 130
pounds when the RV is in motion. Normally a
200 lb. static load design will meet this requirement.
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.
c. Check inside the RV for return air kit obstructions (i.e. door openings, room dividers, curtains, ceiling fixtures, etc.) See FIG. 3 & 4.
Roof Preparation
1. Opening Requirements – Before preparing the ceiling opening, the type of system options must be
decided upon. Read all of the following instructions
before beginning the installation.
If a roof vent opening will not be used a 14-1/4″ x 14-
1/4″ (±1/8″) opening must be cut through the roof and
ceiling of the RV. This opening must be located
between the roof reinforcing members.
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.
2. Roof Vent Removal
a. Unscrew and remove the roof vent.
b. Remove all caulking compound around opening.
c. Seal all screw holes and seams where the roof
gasket is located. Use a good grade of all
weather sealant. See FIG. 5.
d. If the opening exceeds 14-3/8″ x 14-3/8″, it will
be necessary to re-size the opening to 14-1/4″
x 14-1/4″ (±1/8″).
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.
c. 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 and a seven-conductor cable, 18 to
22 AWG is to be used for analog thermostat
connections.
4. Air Distribution System Sizing & Design
The Installer of this air conditioner system must
design the air distribution system for their particular
application. Several requirements for this system
MUST be met for the air conditioner to operate
properly. These requirements are as follows:
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 insulated 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.
d. Return air openings must have 40 square inches
minimum free area including the filter.
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 7, 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
Wiring Requirements
1. 120 VAC Supply Line
Route a copper 12 AWG, with ground, 120 VAC
supply line from the time delay 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 and
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(filtered terminals) 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.
3. If a Remote Temperature Sensor is used, the connector end must be routed from the sensor location
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.
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 Comfort
Control 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. 27.
8. If an automatic generator start kit (AGS) will be
installed, a 4-conductor 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 Remote 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:
• Locate the Comfort Control Center™ 54″
above the floor.
• Install the Comfort Control Center™ on a
partition, not on an outside wall.
• NEVER expose it to direct heat from lamps,
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.
b. If the system is to be used WITH a Remote
Temperature Sensor in ALL zones, the Comfort Control CenterTM may be mounted anywhere that is convenient in the coach. Try to
avoid hard to reach and hard to see areas.
• Refer to the instructions provided with the
Remote Temperature Sensor for details
of installation.
c. A 3/8″ diameter hole will be needed to route the
cable through the wall. See Section D-3.
2. Control Cable Installation
A 4-conductor control cable must be routed from the
roof opening to the Comfort Control CenterTM.
a. Choose the shortest, most direct route from the
14-1/4″ x 14-1/4″ (±1/8″) opening to the Comfort Control CenterTM location selected. Leave
6″ of cable extending through the wall. See
Section D-6.
b. The control cable that should be used is a flat,
4-conductor telephone cable.
c. The control cable must be terminated with two
(2) RJ-11-6C4P telephone connectors. Refer to
the crimp tool manufacture for crimping instructions. See FIG. 8A, 8B and 8C.620515, 620525, 620526, 630515 & 630516 Installation Instructions
9
Important: RJ-11-6C4P connectors must be installed
as shown in FIG. 8A, 8B & 8C.
3. Comfort Control CenterTM Installation
a. Carefully remove the base plate from the Comfort Control CenterTM. This may be accomplished by inserting a small screwdriver under
the tab on thebottom edge of the front cover
and gently prying. See FIG. 9.
b. Insert the control cable through the hole in the
base plate and mount the plate to the wall with
two (2) screws provided. Check the alignment to
ensure level installation.
c. Install the control cable RJ-11-6C4P connector
into the back of the Comfort Control Center™
and snap onto the base plate. See FIG. 9.
F. Placing Air Conditioner On The Roof
1. Remove the air conditioner from the carton and discard carton. See FIG. 10.
2. Place the air conditioner on the roof.
This unit weighs approximately 100 pounds.
To prevent back injury, use a mechanical hoist
to place Air Conditioner on roof.
Do not slide the unit. This may damage the
roof gasket attached to the bottom and may
create a leaky installation.
CAUTION
FIG. 8A
FIG. 8B
Flat Four Conductor Cable
RJ-11-6C4P
Connector
FIG. 8C Pin 1 Black
Red
Green
Yellow
Black
Red
Green
Yellow
Insert Screwdriver
under Tab
Insert Screwdriver
under Tab
MODEE
FAN FN
UUPP
DOWNN
OFF ONFFN
ZONE ZNE
TEMP TEMP
FIG. 9
FIG. 11
FRONT
FIG. 10
3. Lift and place the unit over the prepared opening using
the gasket on the unit as a guide. See FIG. 11.
4. Place the Return Air Kit inside the RV. This box
contains mounting hardware for the air conditioner
and will be used inside the RV.
This completes the outside work. Minor adjustments
can be done from the inside of the RV if required.620515, 620525, 620526, 630515 & 630516 Installation Instructions
10
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.
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.
g. Start each mounting bolt through the ceiling 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. 14. Evenly tighten
mounting bolts to compress gasket to 1/2″
this will be a torque of 40 – 50 inch pounds.
The bolts are self locking so over tightening is not necessary. See FIG. 15.
2. Installation of Divider Plate
a. Measure the ceiling to roof thickness:
• If distance is 2.0″ – 3-3/4″, remove perforated 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. 16.
G. Installing The Air Conditioner
„ Installing Unit with 3105007 or 3105935 Return Air
Kit. For unit with Genesis Air Filtration System, see
page 11.
1. Installation Of Ceiling Template
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 moving. See FIG. 13.
b. Remove return air cover and ceiling template
from the 3105007 or 3105935 carton.
c. Locate the four (8″ x 1/4- 20) unit mounting bolts,
junction box cover and Romex connector in the
3107180 bolt kit.
d. Pull down the unit’s electrical cord and fasten
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. 14.
FIG. 12
Divider Plate
Ceiling Template Return Air
Cover
Return Air
Grill
FIG. 13 Center Unit From Below
Roof
Gasket
DC Power
Gasket
Pull Electrical
Cord Down
FIG. 14
AC Power
Supply
Fasten Jct. Box To
Front Of Opening
Furnace
Unit CCC
Connectors
FIG. 16
FIG. 15
Finger
Tight
Front of Vehicle
Tighten to
compress gasket
to 1/2″
Roof
Gasket
Screws620515, 620525, 620526, 630515 & 630516 Installation Instructions
11
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.
CAUTION
c. Place divider plate up to bottom of air conditioner base pan firmly. The foam tape on the
divider plate must seal to bottom of base pan.
See FIG. 17.
Note: The adhesive on the insulation is extremely sticky.
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 insulation supplied with the return air kit. Remove the
backing paper from the insulation and carefully
stick onto the ceiling template divider panel.
See FIG. 18.
• Excess width is intended to seal the divider plate to the sides of the 14-1/4″ x 14-
1/4″ (±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 Genesis Air Filtration
System Return Air Kit. For unit with 3105007 or
3105935 Return Air Kit, see page 9.
1. All Non-Center Duct Installations
Note: The Genesis Air Filtration System can be installed on
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 Section 1. “Center Discharge Duct Application Installation”, on page 6.
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 moving. See FIG. 13.
• Remove return air cover, ceiling template,
foam divider and air filter from the 3308120
carton.
• Locate the four (8″ x 1/4-20) unit mounting
bolts, junction box cover and Romex connector in the 3107180 bolt kit.
• Pull down the unit’s electrical cord and fasten 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. 14.
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″). Tear off the excess at the pre-cut
perforations in divider. See FIG. 20.
FIG. 17
FIG. 18
Micro-Therm Filter System Micro-Therm Filter System
FILTER
RESET
FILTER
RESET
CLEAN
FILTER
CLEAN
FILTER
Return Air
Cover
FIG. 19
Grill
Foam
Divider
Ceiling
Template
Slider
Filter
Handle
Genesis Air Filtration System
Return Air Kit620515, 620525, 620526, 630515 & 630516 Installation Instructions
12
e. 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. 22.
2. Center Discharge Duct Application Installation
Note: If using non-center duct installation, go to Section 1.
“All Non-Center Duct Installations”, on page 11.
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 moving. See FIG. 13.
• Remove return air cover, ceiling template,
foam divider and air filter from the 3308120
carton.
• Locate the four (8″ x 1/4-20) unit mounting
bolts, junction box cover and Romex connector in the 3107180 bolt kit.
• Pull down the unit’s electrical cord and fasten 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. 14.
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. 23.
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.
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.
CAUTION
c. Install Ceiling Template
• 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. 21.
d. Start each mounting bolt through the ceiling template and up into the unit base pan by hand.
EVENLY tighten the three 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.
FIG. 20
Upside
Down
Foam
Divider
Base Pan
Ceiling
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
Foam Divider Ceiling
Level (±1/4″) Tear Off
Excess
FIG. 21 Foam Divider
Adhesive
Peel Off Paper – Center Divider – Stick To
Rear Flange On Ceiling Template
FIG. 22 Use Aluminum Foil Tape To Seal the
Foam Divider To The Sides of 14-1/4″
x 14-1/4″ (±1/8″) Ceiling Opening
Make Sure To Seal
Behind Flange
Route wires
through Slot
Catch Flange In Groove Of
Return Air Cover
FIG. 23
Foam
Divider
Mark And Cut 2” x 8”
Opening For Center Duct
Tape Covered
Adhesive620515, 620525, 620526, 630515 & 630516 Installation Instructions
13
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.
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.
CAUTION
• Place the foam divider in the return air opening above the center duct before installing
ceiling template.
c. Install Ceiling Template
• 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. 24.
d. Start each mounting bolt through the ceiling template and up into the unit base pan by hand.
EVENLY tighten the three 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.
e. 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. 22.
f. 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.
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.
H. Wiring The System
Reach up into the return air opening and pull the remaining wires down.
1. Connection Of Low Voltage Wires
Note: If solar panel is installed see instructions packaged
with solar panel option.
Note: If using the Genesis Air Filtration System step “b” is
to be completed when installing the decorative cover.
a. Route Remote Temperature Sensor cable, if
applicable, and attach it to the connector that
matches its color in the control box.
b. Connect the previously run 12 VDC to the red
and black wires protruding from the control box.
(In multiple zone installations, this needs to be
done at only one zone.) Connect +12 VDC to
the red wire; –12 VDC to the black wire.
c. Connect the previously run furnace thermostat
wires (if applicable) to the blue wires protruding
from the control box. The polarity of these
connections does not matter.
d. Connect the previously run Energy Management System wires (if applicable) to the yellow
wires protruding from the control box. The polarity of these connections does not matter.
e. Terminate the 4-conductor control cable(s) protruding into the 14-1/4″ x 14-1/4″ (±1/8″) roof
opening. The cable(s) must be terminated with
a telephone RJ-11-6C4P connector. Refer to the
crimp tool manufacturer for crimping instructions.
Important: RJ-11-6C4P connectors must be installed
as shown in FIG. 8A, 8B & 8C.
f. Plug the control cable(s) into the telephone
jack(s) on the control box. (It does not matter
which one.)
g. Locate the ambient sensor plug coming from
the unit, and attach it to the connector that
matches its color in the control box.
2. Connection Of 120 Volt Power Supply
Disconnect 120 volt AC. Failure to follow these
instructions could create a shock hazard
causing death or severe personal injury.
FIG. 24 Stick Weather Strip To Top
Of Ceiling Template
Weather Strip
Ceiling
Template620515, 620525, 620526, 630515 & 630516 Installation Instructions
14
„ Installing unit with 3308120 Genesis Air Filtration System Return Air Kit. For 3105007 or
3105935 Return Air Kit, see page 14.
1. Install the slider in the return air cover and raise it
to the ceiling template. Route the filter indicator
wires from the return air cover through the template
slot leaving about 3” between. 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. Connect together the wires from
the thermostat, unit and filter indicator.
Note: If solar panel is installed see instructions packaged
with solar panel option.
a. Connect the red wire from the unit, the red wire
from the filter indicator light with the red DC
positive power lead. See FIG. 21.
b. Connect the black (-12V) wire from the unit,
the black wire from the filter indicator light with
the black (-12V) power lead.
Note: Number 10 cabinet screw can be used to replace the
two front screws when the ceiling material is hard.
2. 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 above
the filter and are out of its way.
3. Place grill on return air cover and snap in place,
and install decal on end over circuit board.
4. Place slide handle through slots in grill into the
slide posts. Handle will fit in either direction.
5. This completes the installation of the air conditioner.
We recommend that power be supplied to the air
conditioner and check for proper operation. Refer to
Operating Manual or User’s Guide for a description
of the air conditioner operation.
This product is equipped with a 3-wire
(grounded) system for protection against
shock hazard. Make sure that the appliance is
wired into a properly grounded 120 volt AC
circuit and the polarity is correct. Failure to do
so could result in death, personal injury or
damage to the equipment.
a. Route power supply line through Romex connector into junction box on side away from the
ceiling template. Tighten connector, being careful not to pinch or short wires.
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. Installing Decorative Inside Cover
„ Installing unit with 3105007 or 3105935 Return
Air Cover. For Genesis Air Filtration System
Return Air Kit, see page 14.
1. Remove the return air grill from the return air cover.
2. Place the return air cover up to the ceiling template.
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. 24.
6. This completes the installation of the air conditioner.
We recommend that power be supplied to the air
conditioner and check for proper operation. Refer to
Operating Manual or Users Guide for a description
of the air conditioner operation.
Micro-Therm Filter System Micro-Therm Filter System
FILTER
RESET
FILTER
RESET
CLEAN
FILTER
CLEAN
FILTER
Return Air
Cover
FIG. 25
Grill
Foam
Divider
Ceiling
Template
Slider
Filter
Handle
Genesis Air Filtration System
Return Air Kit
FIG. 24 Return Air
Cover
Hole
Plugs Return
Air Grill620515, 620525, 620526, 630515 & 630516 Installation Instructions
15
J. System Configuration, Reset & Check Out
Now that the system is installed, it is necessary to check all
operations and then configure the electronics. Refer to the
Operating manual for a description of the air conditioner
operation.
1. Electronic Control Kit 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.
Placing the switch in the “ON” position selects that
option. See FIGS. 26, 26A & 26B.
d. Differential – differential is the temperature difference between the “ON/OFF” cycle of the thermostat in the furnace mode. 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 to the “ON”
position.
Note: Setting the differential dip switch should only be
required when installation conditions are less than desirable
and is not covered under the limited warranty.
e. Stage selection – stage is not used on these
units. Leave in the “OFF” position.
f. Gen start selection – leave in the “OFF” position.
g. Replace the unit electrical box cover.
h. Repeat this procedure for each additional zone.
2. System Reset
After setting the dip switches in the electronic
control kit, do a system reset.
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 LCD
display until the mode and zone push-buttons
are released.
c. When a dip switch is turned on after initial
configuration, a system reset will need to be
done before the Comfort Control Center™ will
recognize the updated selection.
3. System Checkout
Verify that all features of the installed system work.
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 Box. See Comfort Control Center™
Operating Instructions.
Note: Dip switches are in the “OFF” position when shipped
from the factory. The dip switches are visible through the
opening in the ceiling template into the control box.Dip
switches can be either a rocker or sliding style of a switch.
See FIGS. 26, 26A & 26B.
Important: Dip switch damage will occur if they are
not set in the proper manner. A ball point pen or similar
object that will slip in the switch slot, can damage the
switch causing loss of connection. Use only a small flat
blade screw driver (wider than the dip switch slot) to
move the dip switch. See FIG. 26C.
b. Heat strip selection: Units with a heat strip, the
#1 dip switch will be in the “ON” position.
c. Furnace selection – when a furnace has been
connected to a zone, place the furnace dip
switch “ON” for that zone.

Share Button