Dometic 457915 Installation & Operating Instructions Manual page 9

INSTALLATION INSTRUCTIONS
6. Ceiling Template Installation
a. Plug the 6 pin electrical cord from the top unit
into the matching 6 pin connector in the elec-
tronic control box. The plug is polarized and
will only fit in one direction. See (FIG. 13).
FIG. 13
Unit Electrical
Cord
b. Route the previously run 120 Vac power sup-
ply wire through the junction box hole cutout.
See (FIG. 13).
c. Secure 120 Vac power supply using the sup-
plied strain relief. Install strain relief in junc-
tion box hole leaving enough wire inside
junction box to connect unit wires to power
supply wires. See (FIG. 13).
d. Hold the ceiling template up to the roof open-
ing and line up the channel in the ceiling
template with the previously installed duct
divider. See (FIG. 14).
FIG. 14
e. Hold the ceiling template up to the roof open-
ing and start each mounting bolt, by hand,
through the ceiling template and up into the
unit base pan. See (FIG. 15) & (FIG. 16).
Plastic
Strain Relief
120 Vac
Power Supply
Duct Divider
Channel
FIG. 15
Mounting Bolt Pattern Table (See Fig. 15)
Model
457915
B57915
459516
B59516
540315
540316
640312
640315
A
FIG. 16
E F
f.  Tighten mounting bolts to
correct torque specifications. Overtighten-
ing could damage unit's base pan or ceiling
template. Not enough torque will allow an in-
adequate roof seal, and could cause a leak.
g. Tighten all four (4) mounting bolts EVENLY
with in 40 to 50 inch pounds. See (FIG. 15).
9
Mounting Bolt
Mounting Bolt
Bolt Location
A, D, E & H
A, D, E & H
A, D, E & H
A, D, E & H
B, C, F & G
B, C, F & G
B, C, F & G
B, C, F & G
C
B D
G H