Installing Unit - Dometic BR342 Installation And Operating Manual

INSTALLATION INSTRUCTIONS
4. Place the air distribution box kit inside the RV.
This box contains mounting hardware for the
unit and will be used inside the RV.
T his completes the outside work. Minor
adjustments can be done from inside the
RV if required.
E.

Installing Unit

C heck gasket alignment of the unit over the
roof opening and adjust if necessary. Unit may
be moved from below by slightly lifting. See
(FIG. 5).
FIG. 5
Center Unit From Below
2. Remove air distribution box and mounting hard-
ware from carton. See (FIG. 6).
FIG. 6
Duct Divider
3. All models in this manual will use a four (4) bolt
pattern for installing the air distribution box kit.
4. Reach up into the return air opening of the unit
and pull the unit electrical cord down for later
connection. See (FIG. 7).
Roof Gasket
Ceiling
Template
6
FIG. 7
Thermistor
Control Electrical
Cable Cord
5. Duct Divider Installation
a. Measure the ceiling thickness. See (FIG. 7).
b. Cut away the number of rows as indicated in
table below. See (FIG. 8)
Ceiling # Of
Rows
Thickness(mm)
To Cut
(mm)
Min. Max.
152.4 165.1 0
139.7 152.4 25.4
127 139.7 50.8
114.3 127 76.2
101.6 114.3 101.6
FIG. 8
Remove Rows
Starting Here
c. Carefully install the duct divider in the roof
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111.1mm
See (FIG. 9) .
The foil side faces rear of unit.
Measure Ceiling
Thickness
.
Ceiling # Of
Rows
Thickness (mm)
To Cut
Min Max. (mm)
88.9 101.6 127
76.2 88.9 152.4
63.5 76.2 177.8
50.8 63.5 203.2
38.1 50.8 228.6
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