Installing The Gas Line; Installing The Control Switch - Dometic WH-6GA Manuel D'installation Et D'utilisation

L.P. Gas Water Heater
6. Apply sealant to the threads of the 1/2 in. (1.27 cm)
(NPT) cold water inlet hose.
7. Connect the 1/2 in. (1.27 cm) (NPT) cold water inlet
hose to the proper fitting on the Water Heater using a
suitable plastic fitting.

4.4 Installing The Gas Line

(Rear)
(Front)
w w
r
7 Sealing the Gas Line Opening With the Grommet
Water Heater
q
Gas Line
w
1. Connect the 3/8 in. (0.95 cm) flared L.P. gas line to
the Water Heater.
2. Slide the grommet onto the 3/8 in. (0.95 cm) tubing.
3. Flare the gas line as necessary.
I If the 3/8 in. (0.95 cm) gas line is already flared, cut
the grommet on one side. Place the split grommet
over the gas line and press it into the opening in the
housing.
EN
q q
e
w w
q q
Grommet
e
Housing Opening
r
4. Pull the 3/8 in. (0.95 cm) gas line and grommet
through the opening in the water heater housing.
5. Connect the flare fitting and press the grommet
into the opening. Caulk around the grommet if the
grommet was cut during the gas line installation.

4.5 Installing The Control Switch

Dometic recommends that the Water Heater unit be
connected directly to a 12 VDC battery or to the filtered
side of an AC/DC converter. Avoid connections to
the unfiltered side of an AC/DC converter whenever
possible. Use a minimum of 18-gauge wire, UL and CSA
listed.
I The 12 VDC control wiring in the Water Heater is
18-gauge stranded wire rated for 105°C (221°F).
This 18-gauge wire should be sufficient for the
12 VDC control wire coming from the Water Heater
to the switch and the 12 VDC power source;
however, consult all local and national codes
relating to your specific installation to verify.
4.5.1 Preparing the Control Switch
Installation Location

WARNING: FIRE AND OR ELECTRICAL SHOCK
HAZARD. Failure to obey the following
warnings could result in death or serious
injury.
• Make sure there are no obstacles (wires, pipes,
etc.) inside of the RV roof or walls at the installation
locations.
• Shut off the gas supply, disconnect the 120 VAC
power from RV, and disconnect the positive (+) 12
VDC terminal from supply battery before drilling or
cutting into the RV.
I An illuminated light on the switch plate indicates a
fault condition (no heat).
When planning the location of the control switch(es), be
sure to choose an easily accessible area for both use and
service.
I Combination single switch models will have two
single switches (one for the gas heating element
and one for the electric control) that will need to be
installed in convenient locations.
Installation
9