Installation; Wiring The Rooftop Component - Dometic FreshJet 3 Series Installation And Operation Manual

Rooftop Air Conditioner (Air Distribution Box, Electronic Controls)
q
10 Return air opening
Wiring harness
q
3. Reach up into the return air opening of the
rooftop component and pull down the rooftop
component's electrical cord and wiring harness.
4. If the rooftop component has a built-in board,
complete the following:
a. Mount the junction box to the framing in front
of the roof opening, using the installer-supplied
screws.
b. Install the strain relief.

8 Installation


WARNING: FIRE OR ELECTRICAL SHOCK
HAZARD . Failure to obey these warnings
could result in death or serious injury .
• Shut off the gas supply, disconnect the 115 VAC
power from the RV, and disconnect the positive
(+) 12 VDC terminal from the supply battery before
drilling or cutting into the RV.
• Provide grounding in compliance with all applicable
electrical codes.
This section describes how to install the product.

8 .1 Wiring the rooftop component

This section describes how to connect the wires for the
rooftop component.
EN
w
Ceiling thickness
w
8 .1 .1 Connecting the 115 VAC power
supply to the junction box
1. Route the previously run 115 VAC power supply wire
from the rooftop component through a strain relief
and into the junction box.
2. Tighten the strain relief making sure not to damage
the wires. Leave enough wire inside the electronic
control box to connect to the rooftop component's
115 VAC wires.
3. Connect the white neutral wires together, using
appropriately-sized connectors.
4. Connect the black live wires to each other, using
appropriately-sized connectors.
5. Connect the bare copper wire to the green or bare
copper wire, using appropriately-sized connectors.
6. Ensure the connectors to the 115 VAC power supply
wire are secured so they do not vibrate loose.
7. Push the connected wires into the junction box.
8 .1 .2 Connecting the low voltage wire
to the electronic control box
NOTICE: Make sure the positive (+) 12 VDC terminal
is disconnected from the supply battery. Otherwise,
damage to the rooftop component could occur.
1. Connect the previously run (+) 12 VDC supply wire
protruding from the roof opening to the (+) 12 VDC
red wire at the electronic control box.
2. Connect the previously run (–) 12 VDC supply wire
protruding from the roof opening to the (–) 12 VDC
black wire at the electronic control box.
8 .1 .3 Connecting the communication
cable to the electronic control box
Connect the 4-conductor communication cable
supplied with the ADB to the "TO ADB" matching
connector on the electronic control box.
Installation
13