GENERAL INSTALLATION
The following instruction describes the most common type of
installation for the water heater. However, there are other
approved methods such as baggage compartment and flush
mounting. Consult your Field Auditor, Account Manager, or
the PrecisionTemp Service Department if you have additional
questions.
These steps assume the proper location has been determined
and is being installed at the OEM prior to erecting the walls.
NOTE: Parts bag that includes corner filler brackets and
optional water fittings.
1. Locate the water heater on the floor of the coach at
pre-determined location. The unit must be
permanently supported at the same level as the
bottom of the sidewall cutout (by the floor or a raised
floor).
2. To install the unit on carpeting, assure the addition of
metal or wood under the unit is added and extends a
minimum of three inches beyond the width and depth
of the appliance enclosure. Minimum clearance
requirement is zero (except front door for proper
operation and service).
3. If risk of future connection leakage and damage of
adjacent area is of concern, install a drain pan under
the unit with drainage to outside of vehicle.
4. Connect plumbing to water lines taking care to make
correct “COLD” and “HOT” orientation. Connect
3/8” FM flared LP gas line to 3/8” M flared gas
fitting.
a. Allow flexibility in water and gas lines so
the unit can be pulled through the sidewall
opening at lease one inch past the skin,
allowing for sealing step.
b. Assure the water and gas line grommets
continue to be intact and properly inserted in
the case holes, with no gaps or openings
where the line passes through the case.
All connections must be made using TWO
(2) wrenches to avoid twisting and damaging
lines. Damage voids the Warranty!
5.
Erect the side walls and cut the opening or
orient the pre-fabricated opening. Frame with
2” x 2” lumber (or equivalent).
6.
Pull the unit outward through the opening and bend all
four flanges outward 90 degrees along the lanced lines.
Installation in water heater opening
7.
To
prevent water leaks
, caulk thoroughly around the
backside of the flanges over the lanced bend slots.
Caulk the perimeter of the opening (or substitute 1” x
3/8” Butyl Tape).
8.
Push the unit to the wall against the caulking and
secure the corner brackets behind the unit flanges but
snug to the corner of the enclosure. Complete the
installation by inserting #8 screws in all the flange
holes. An “air tight” seal must be the final result.
9.
Place the access door on the lower flange pins aligning
the holes in the bottom of the door. Carefully close the
top edge of the door, being careful to align the flue
opening with the flue tube and screw in the fastener.
10.
The appliance must be disconnected from the gas supply
piping system during any pressure testing of the system
at test pressures in excess of
½
psi. The appliance must
be isolated from the gas piping system during any
pressure testing at test pressures equal to or less than
½
psi. Pressure inlet to valve, 13” W.C. maximum, 11”
W.C. minimum. Pressure at outlet of valve is factory set
at 10: Burner manifold pressure is W.C. 8.9” W.C. +/- .2”
at tap on burner manifold.
11.
Turn on the gas and check the water
heater and all connections for gas leaks
with a leak detecting solution.
12.
Turn on water supply line and check for
water leaks.
Cold In
Gas Connection
Hot Out
2
