Duo-Therm GENESIS 3308120.XXX, GENESIS 3308120 Series Installation And Operating Instructions Manual

3308120.XXX GENESIS AIR FILTRATION SYSTEM

3308120.XXX

GENESIS AIR FILTRA TION SYSTEM

FOR

USA

SERVICE OFFICE
Dometic Corp.
509 So. Poplar St.
LaGrange, IN 46761
260-463-4858

CANADA

Dometic Dist.
866 Langs Dr.
Cambridge, Ontario
CANADA N3H 2N7
519-653-4390

For Service Center
Assistance Call:

800-544-4881

57XXX SERIES

59XXX SERIES
600XXX SERIES
620XXX SERIES
630XXX SERIES

AIR CONDITIONERS & HEAT PUMPS

USED WITH

3109226.005 ELECTRONIC CONTROL KIT

3109407.001 ELECTRONIC CONTROL KIT

3107541.009 ANALOG CONTROL KIT

3107541.017 ANALOG CONTROL KIT

3107546.008 ANALOG CONTROL KIT

INST ALLA TION AND OPERA TING

INSTRUCTIONS

REVISION

Form No. 3308129.026 5/03
(Replaces 3308129.018)
(French 3308134.026)
©2003 Dometic Corporation
LaGrange, IN 46761

Important: These instructions

must stay with unit.
Owner read carefully.

MODEL

3308120.XXX
GENESIS

AIR FIL TRA TION

SYSTEM

1

NOTES:

3308120.XXX GENESIS AIR FILTRATION SYSTEM

2

3308120.XXX GENESIS AIR FILTRATION SYSTEM

SAFETY INSTRUCTIONS

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

A signal word , WARNING OR CAUTION is used
with the safety-alert symbol. They give the level of
risk for potential injury .

WARNING

!

ous situation which, if not avoided, could result in
death or serious injury .

CAUTION

!

ous situation which, if not avoided may result in
minor or moderate injury .

CAUTION

symbol indicates, a potentially hazardous situa­tion which, if not avoided may result in property
damage.

Read and follow all safety information and instruc­tions.

indicates a potentially hazard-

indicates a potentially hazard-

used without the safety alert

1. GENERAL INFORMATION

A. The Genesis Air Filtrations System is designed for:

1. Installation on a recreational vehicle at the time the
vehicle is manufactured.

2. Mounting of an air conditioner or heat pump on the
roof of a recreational vehicle.

3. Roof construction with rafters/joists on minimum of
16 inch centers.

4. Minimum of 2.00 inches and maximum of 5.50
inches distance between roof to ceiling of recre­ational vehicle. Alternate installation methods will
allow for roofs more than 5.50 inches thick.

B. The ability of the air conditioner/heat pump 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/heat
pump. 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

Operation on High Fan/Cooling mode will give optimum
or maximum efficiency in high humidity or high outside
temperature.

Starting the air conditioner/heat pump 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 a high heat gain,
accessories like A&E outdoor patio and window awnings
will reduce heat gain by removing the direct exposure to
the sun. They also add a nice area to enjoy company
during the cool of the evening.

C. Condensation
Note: The manufacturer of this Genesis Air Filtration

System 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/heat pump removes this moisture from the air
during normal operation. Keeping doors and windows closed
when operating the air conditioner/heat pump will minimize
condensed moisture on cold surfaces.

3

3308120.XXX GENESIS AIR FILTRATION SYSTEM

CAUTION

INSTALLATION INSTRUCTIONS

1. PRECAUTIONS C. AFTER LOCATION HAS BEEN SELECTED:

WARNING

!

Improper installation may damage equip­ment/could endanger life, cause serious in­jury and/or property damage.

A. Read Installation and Operating Instructions carefully

before attempting to start your air conditioner installa­tion.

B. Dometic Corporation will not be liable for any damages

or injury incurred due to failure in following these instruc­tions.

C. Installation must comply with the National Electrical

Code and any State or Local Codes or regulations.

D. DO NOT add any devices or accessories to this air

conditioner except those specifically authorized by
Dometic.

E. This equipment must be serviced by qualified personnel

and some states require these people to be licensed.

2. CHOOSING LOCATION FOR THE UNIT

This air conditioner/heat pump is specifically designed for
installation on the roof of a recreational vehicle (RV).

A. FOR ONE UNIT INSTALLATION:

The air conditioner/heat pump should be mounted slightly
forward of center (front to back) and centered from side
to side.

1. Check for obstructions in the area where air condi­tioner/heat pump and return air cover will be in­stalled.

2. The roof must be designed to support 130 pounds
when the RV is in motion. Normally a 200 lbs. static
load design will meet this requirement.

It is the responsibility of the installer of this
air conditioner/heat pump 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/heat pump may leak into the inte­rior causing damage to the product and the
RV.

3. AIR DISTRIBUTION SYSTEM SIZING &
DESIGN

The Installer of this air conditioner/heat pump system must
design the air distribution system for his particular applica­tion. Several requirements for this system MUST be met for
the air conditioner/heat pump to operate properly. These
requirements are as follows:
A. Roof cavity thickness must be between 2.00" to 5.50".

This distance is measured between roof and ceiling
surface.

B. FOR TWO UNIT INSTALLATIONS:

Install one air conditioner/heat pump one-third and one
air conditioner two-thirds from front of RV and centered
from side to side. It is preferred that the air conditioner/
heat pump be installed in a relatively flat and level roof
section measured with the RV parked on a level surface.

REGISTERS

8 MIN. — 12 MAX.
14 SQ. IN. FREE AREA PER REGISTER

REGISTER
REQUIRED

FIG. 1

TOTAL OUTLET
AIR AREA 16.0
SQ. IN. MINIMUM
EACH SIDE

B. The total cross-sectional discharge area of outlet ducts

from the plenum area under the air conditioner/heat
pump must be a minimum of 16.0 sq. inches each side.

DUCTS MIN. MAX.
DEPTH 2.00” 2-1/2"
WIDTH 8.00" 10.00"
TOTAL LENGTH 15' 40'

REGISTER
REQUIRED

14-1/4" (±1/8")
ROOF OPENING

REGISTER
REQUIRED

ROOF RAFTERS

4

3308120.XXX GENESIS AIR FILTRATION SYSTEM

WARNING

!

C. DUCT SIZING REQUIREMENTS AS FOLLOWS:
NOTE: Duct sizes listed are inside dimensions.

Min. Max.

1. Duct Depth 2.00" 2-1/2"

2. Duct Width 8.00" 10.00"

3. Total Duct Length 1 5' 40 '

4. Duct Length (Short Run) 1/3 Total Length

CENTER DUCT (Penguin 620 & 630 Series Only

Controls In Roof Package)

Min. Max.

1. Duct Depth 2.00" 2.00"

2. Duct Width 8.00" 8.00"

3. Total Duct Length 1 5' 40 '

4. Duct Length (Short Run) 1/3 Total Length

D. REGISTER REQUIREMENTS AS FOLLOWS:

Min. Max.

1. Distance from Duct End 5" 8'

2. Distance from End of Elbow 15" —

3. Distance between Registers 24 ” —

4. Total Number Required 8 12

5. Min. No. required per Run 2 —

6. Min. Free Area per Register 14 sq. in. —

4. AIR DISTRIBUTION SYSTEM
INSTALLATION

Dometic Corporation recommends the basic configuration
shown in FIG. 1 for installing this air conditioner/heat pump
system. We have found by testing, that this configuration
works best in most applications of this air conditioner/heat
pump system.

It is the responsibility of the Installer of this system to review
each RV floor plan and determine the following:

A. Duct size
B. Duct layout
C. Register size
D. Register locations

E. Thermostat location.
These items must be determined in conjunction with the Air
Distribution System Sizing and Design Requirements listed
in Section 3 of this manual.

Important: Alternate configurations and methods

may be used which still allow the air conditioner/heat
pump to operate properly. However, these alternate
configurations and methods must be approved by
Dometic Corporation in writing.

E. The Duct material must meet or exceed any agency

or RVIA Standard that may be in existence at the
time the RV is produced.

F. 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/
heat pump. This insulation must be R-7 minimum.

G. Ducts and their joints must be insulated and sealed to

prevent condensation from forming on adjacent surfaces
during operation of the air conditioner/heat pump.

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.

H. Return Air to the air conditioner/heat pump must be

filtered to prevent dirt accumulation on air conditioner/
heat pump cooling surface.

I. Total System Static Air Pressure

This is to be determined with the air conditioner/heat
pump blower operating on High Speed and return air filter
and grill in place. It is measured in inches of water
Column.

0.55 - 0.90 In. W.C. 579 Series

0.40 - 1.10 In. W.C. 590, 591, 595 Series

0.12 - 0.65 In. W.C. 600, 630 Series

The following instructions are based upon the use of
Dometic Genesis Air Filtration System No. 3308120.XXX.

A. Before preparing the ceiling opening, the type of system

options must be decided upon. Read all of the instruc­tions packaged with the system options before
beginning the installation.

B. ROOF AND CEILING OPENING PREPARATION

1. 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 and reinforcing
members.

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 .

2. Mark a 14-1/4" x 14-1/4" (±1/8") square on the roof and
carefully cut the opening.

3. Using the roof opening as a guide, cut the matching
hole in the ceiling.

4. The opening created must be framed and sealed 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 and system wires as
needed.

5

3308120.XXX GENESIS AIR FILTRATION SYSTEM

5. The 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.

C. AIR DISTRIBUTION DUCT INSTALLATION

Install the air distribution ducts in the RV roof cavity. The
distribution system must meet:

1. RV’s requirements

2. System requirements listed in Section 3 of this

Manual. Terminate the start of the duct at the back
edge of the 14-1/4" (±1/8") opening previously cut.

FIG. 2

FRAME

LOW VOLTAGE WIRES:

12VDC
Furnace
Load Shed
Sensors

ROOF

INSULATION

DUCT

(TOWARD BACK OF RV)

DUCT

TOP VIEW

(BACK OF RV)

FRAME

14-1/4" (±1/8”)

OPENING

AC POWER
SUPPLY WIRE

FRAME

CCC, CONTROL CABLE(S)
or 7-Wire Analog Cable

SIDE VIEW

14-1/4" (±1/8”)

OPENING

CEILING

DUCT

DUCT

INSULATION

5. PLACING THE UNIT ON THE ROOF

A. Remove the air conditioner/heat pump from the carton.
B. Place the air conditioner/heat pump on the roof.

D. Place the Genesis Air Filtration System and System

Control Option inside the RV. These boxes contains
mounting hardware for the air conditioner/heat pump
and will be used inside the RV.

6. INSTALLATION OF UNIT

A. Take the Genesis Air Filtration System from the carton.
B. If the Controls are not part of the unit. Position the

electrical box towards the front of the opening with all of
the system control wires connected to the control box

except for the DC power. See figure 3.

FIG. 3

Vehicle
Front

C. 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
figure 4.
NOTE: If using center duct installation See Step C-1. If
not center duct go to Step D.

FIG. 4

Upside

Base Pan

Down
Foam
Divider

Wires Connected T o
Control Box

Control
Box

Base
Pan

Do not Peel Tape
Off Foam Divider

Ceiling

WARNING

!

This unit weighs approximately 100 pounds.
To prevent back injury, use a mechanical
hoist to place air conditioner/heat pump on
roof.

C. Lift and place the unit over the prepared opening using

the gasket on unit as a guide. The roof gasket on the
bottom of the base pan goes toward the front of the RV.
Sliding the unit on the roof will damage the roof gasket.

CAUTION

Do not slide the unit. This may damage the
neoprene gasket attached to the bottom
and create a leaky installation.

Note: If center duct system is being used, be sure to

install duct adapter to the bottom of the base pan, before
unit is placed over opening. Duct adapter 3100342.XXX
and 3100262.XXX can be used. Alternate methods of
duct connection are available for installation; however,
they must be approved in writing by Dometic.

Place Foam Divider in
14-1/4" x 14-1/4" (±1/8")
Ceiling Opening Against
Base Pan Bottom

Foam Divider Ceiling
Level (±1/4") T ear Off
Excess

1. Center Duct Installation (Penguin 620 & 630 Series
Only)

a. See Step B.
b. Cut notch in the center section of the foam

divider to fit duct (approximately 8 x 2
inches) . See figure 5.

FIG. 5

Tape Covered

Foam
Divider

Adhesive

Mark And Cut 8 x 2”
Opening For Center
Duct

6

3308120.XXX GENESIS AIR FILTRATION SYSTEM

CAUTION

c. Peel tape to expose adhesive. Wedge the

divider between center duct and bottom of
unit.

d. Stick foam weather strip (not provided) on

the top side of the ceiling template to seal
the gap between it and the center duct. Use
a soft piece of foam weather strip 1 x 3/4 x
10 inches. See Figure 6.

FIG. 6

Weather Strip

e. Place the ceiling template over the return

air opening. Start each mounting bolt through
the ceiling template and up into the base
pan by hand. Install a wood screw in each
end of the ceiling template. This insures a
tight fit of the return air cover to the ceiling.
Evenly tighten mounting bolts to compress
the roof 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.

f. Cut out bottom of the center duct allowing

the discharge of air to flow out the opening
in the ceiling template.

g. Proceed on from Steps G - L.

D. Peel the protective paper tape off of the divider and place

it on the center of the rear edge of return air opening on
the ceiling template. See figure 7.

FIG. 7

Adhesive

Stick Weather Strip to Top
of Ceiling Template

Ceiling
Template

Foam
Divider

E. Place the ceiling template up into the return air opening

in the ceiling. Start each mounting bolt by hand through
the ceiling template and up into the base pan. Install a
wood screw in each end of the ceiling template. This
insures a tight fit of the return air cover to the ceiling.
Secure the control box to the ceiling template with thread
cutting screw. See figure 8A and 8B.

FIG. 8A

Brisk Air Models Mount
Control Box on Edge To
The Flange on Ceiling
Template

Vehicle
Front

FIG. 8B

Penguin Models Lay
Control Box Flat On Top
Of Ceiling Template

Vehicle
Front

F. Evenly tighten mounting bolts to compress the roof

gasket to 1/2", this will be 40 - 50 Inch Pounds of torque.
The bolts are self locking so over tightening is not

necessary.

Control Box

Three
Screws

Control Box

Two
Screws

Center And Stick Foam Divider
To Flange On Ceiling Template

Ceiling
Template

If bolts are left loose there may not be an ad­equate roof seal or if over tightened, damage
may occur to the air conditioner base or ceil­ing template. Tighten to torque specifications
listed in this manual.

7

3308120.XXX GENESIS AIR FILTRATION SYSTEM

Micro-Therm

Filter

System

FILTER
RESET

CLEAN
FILTER

Micro-Therm

Filter

System

FILTER
RESET

CLEAN
FILTER

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Micro-Therm

Filter

System

F

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S

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FILTER
RESET

C

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A

N

F

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CLEAN
FILTER

G. Use Aluminum foil tape (not provided) 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 Figure 9.

FIG. 9

Route wires
through Slot

Catch Flange In Groove Of
Return Air Cover

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

H. Install the slider in the return air cover and raise it to the

ceiling template. Route the wires from the return air
cover through the template slot leaving about 3” of wire
in 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 DC wires (3
Black - negative and 3 Red - positive) from the supply,

control box and filter indicator. See figure 9.
Note: Number 10 cabinet screw can be used to replace
the two front screws, and pull the plastic return air cover
to the ceiling when the ceiling material is hard.

1. If solar panel is installed see instructions pack
aged with solar panel option.

I. 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.

J. Place grill on return air cover and snap in place. Decal is

on end over circuit board.

K. Place slide handle through slots in grill into the slide

posts. Handle will fit in either direction. See Figure 10.

C. The “CLEAN FILTER” bulb will blink as a reminder to

clean/change the air filter every 60 days. If in dusty
conditions, the filter should be checked bi-weekly and
clean/changed if needed.

1. To clean the filter, remove the dust using a vacuum
cleaner. Wash filter with a mild detergent, rinse with
clean water and allow to dry.
NOTE: Replace filter annually. See your Duo Therm
Dealer for replacement filter. Filter part numbers are
stamped on filter frame.

2. To reset the “CLEAN FILTER” reminder:
a. Depress the gray button “FILTER RESET” on the

decal of the grill. The Light will blink 3 times to indicate
a successful reset. See Figure 11.

FIG.11

Push To Reset

ystem

S

ilter

F

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M

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F

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IL

F

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Light

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FIG. 10

Foam
Divider

Ceiling
Template

Slide

Filter

OPERATING

INSTRUCTIONS

1. GENERAL INSTRUCTIONS

A. Read your Control Systems Operating Instructions care-

fully before attempting to start your air conditioner.

B. The 3308120.XXX Genesis Air Filtration System is

designed to allow the unit to direct the air flow through the
RV’s duct system; or, by opening a slide control the air
will be discharged directly out from the return air cover.

1. Slide the slide handle towards the front of the RV to
divert the air into the duct system.

2. Slide the slide handle to the rear of the RV and the air
will discharge out the return air cover.

Return
Air
Cover

Slide
Handle

Grill

8