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Prepare Cutout Opening
1. Choose a location to place the appliance, based on the
following criteria:
− DO NOT install in the front facing portion of the RV
to minimize damaging contamination from road grim,
debris and wet roads when traveling.
Important: It is not advised, but if installed on the rear
of the RV, the owner of this appliance must increase
routine inspections, from this manual, after each time
travelled.
− Do not install the appliance in an outdoor enclosed
area.
− DO NOT install the appliance in any location where the
exhaust vent may be covered or obstructed when a
swing door, bag door, slide out, pop up, etc. is partially
or fully extended.
− DO NOT install this appliance on any door or slide out
area.
− Do not install the appliance where the access door is
less than
- 9" (229mm) from any opening into the vehicle
- 36" (914) from any motor driven air intake
- 36" (914mm) from the any gas tank connection or
ventilation.
NOTE: These are guidelines, refer to NFP1192, Z240 RV
edition for specific requirements.
− Choose a convenient location where supply water, LP
gas, and 12V DC is accessible to the back side of the
appliance for installation and servicing.
− The water heater is designed to be installed on a flat
floor (made of Wood or Linoleum) or a fixed platform.
− It is recommended that the appliance be located in a
central location to the hot water loads.
− Choose a location where clearances to combustible
surfaces and the appliance are:
- 1" to top surface.
- 0" to all other surfaces.
NOTE: To install on a carpeted area, a metal or wood panel that
extends at least 3 inches beyond the width and depth of the water
heater is required to install under the unit.
2. Create a cutout with the following dimensions A and B of
Fig. 2.
NOTE: The opening for the water heater should be right
angle corners.
Fig. 2
Dimension
A
B
12 5/8"~ 13"
12 3/4"~ 13"
(321~330mm)
(324~330mm)
A
A
C
Min. 19 3/4" (Min. 502mm)
231/2" (suggested for utilities)
3. Make sure that the front edge of the opening is
surrounded by a solid frame to firmly anchor the water
heater. If needed, construct the opening by using
1.5" x 1.5" min. wood or aluminum framing.
NOTE:
− Fiberglass, filon, and corrugated aluminum (Mesa 1")
are all acceptable exterior wall siding solutions.
− The exterior wall opening must be the same dimensions
with no radius corners.
4. Refer to depth "C" for minimum rear clearances, for such
items as cabinets, appliances and utility entry locations.
5. Refer to Fig. 3 for adequate spacing from other items on
the RV wall to the door assembly.
A
B
Fig. 3
Door Assembly
FWH09EAB-PS/BL
FWH09EA-PS/BL
FWH41EA-PS/BL
FWH46EA-PS/BL
6. Make sure the appliance is supported by a solid floor or
platform with adequate weight-bearing capacity. (Fig. 4)
Fig. 4
7. If necessary, create a platform to support the water
heater. Fig. 5 and Fig. 6 are some common solutions.
Ensure the platform is level front to back, and side to side
after securing to the RV.
Flush Platform
Wooden Mat
Fig. 5
Flush Platform
Wooden Mat
Fig. 6
- 6 -
Cutout
Spacing
A
Min. 1 3/4" (45mm)
Min. 1 7/8" (47mm)
Min. 1 3/4" (45mm)
Min. 1 7/8" (47mm)
Min. 2 3/4" (70mm)
Min. 1 7/8" (47mm)
Min. 2 3/4" (70mm)
Min. 2 13/16" (72mm)
CCD-0005507 Rev: 09-13-22
B
A
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