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Installation of unit, Caution, Warning – Dometic GENESIS 3308120.XXX User Manual

Page 6: Placing the unit on the roof

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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.

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.

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

CAUTION

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

WARNING

!

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.

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.

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.

Mark And Cut 8 x 2”
Opening For Center
Duct

FIG. 5

Foam
Divider

Tape Covered
Adhesive

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.

FRAME

14-1/4" (±1/8”)

OPENING

AC POWER
SUPPLY WIRE

DUCT

FRAME

DUCT

ROOF

INSULATION

DUCT

CEILING

DUCT

14-1/4" (±1/8”)

OPENING

INSULATION

SIDE VIEW

(TOWARD BACK OF RV)

TOP VIEW

(BACK OF RV)

LOW VOLTAGE WIRES:

12VDC
Furnace
Load Shed
Sensors

FRAME

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

FIG. 2

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.

FIG. 3

Vehicle
Front

Control
Box

Base
Pan

Wires Connected To
Control Box

FIG. 4

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

Ceiling

Upside
Down
Foam
Divider

Do not Peel Tape
Off Foam Divider

Base Pan

Foam Divider Ceiling
Level

(±1/4")

Tear Off

Excess