Dometic MPD 93755 Mode D'emploi page 3

8. Push unit against caulking, secure 4-corner brackets (
coach with No. 8 - 3/4˝ round head screws (not furnished) or equivalent.
Complete the installation by inserting the same type of #8 screws in the
holes provided around the flange of the water heater housing. Check all
gaskets, they must adhere to the pan creating an air tight seal.
9. Attach access door.
a. Snap hinge pin ( 3-C) into clip (
FIG
b. Slide cover ( 3-E) onto hinge pin.
FIG
c. Slide hinge pin into cover, snapping into clip at same time (
: To remove hinge pin, support access cover and apply force to
NOTE
corner of hinge pin.
10. Disconnect unit and its individual shut-off valve from gas supply
line during any pressure testing of system in excess of 1/2 PSIG
(3.4 kPa, 14˝ water column [W.C.]).
than maximum indicated on rating plate of gas valve (13˝ W.C.).
Isolate unit from gas supply line by closing its individual manual
shutoff valve during any pressure testing
FIRE AND/OR EXPLOSION
use matches, candles or other sources of ignition when
DO NOT
checking for gas leaks.
11. Turn on gas and check water heater and all connections for gas
leaks with leak detecting solution.
12. Fill water heater tank, check all connections for water leaks.
PRESSURE-TEMPERATURE RELIEF VALVE
EXPLOSION
Valve is not serviceable, it must be replaced.
Tampering with valve will result in scalding injury.
Tampering with valve will void warranty.
place a valve, plug or reducing coupling on outlet part of
DO NOT
relief valve.
THIS VALVE IS A SAFETY COMPONENT AND MUST NOT BE REMOVED FOR ANY REASON
This water heater is equipped with a
OTHER THAN REPLACEMENT.
temperature and pressure relief valve (
standard for Relief Valves and Automatic Gas Shutoff Devices for Hot
Water Systems, ANSI Z21.22.
If you use a discharge line, do not use a reducing coupling or other
restriction smaller than outlet of relief valve. Allow complete drainage
of both valve and line.
FOR REPLACEMENT PARTS:
install anything less than a combination temperature-pressure
DO NOT
relief valve certified by a nationally recognized testing laboratory that
maintains periodic inspection of product of listed equipment or
materials, as meeting requirements for Relief Valves and Automatic
Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22.
Valve must have a maximum set pressure not to exceed 150 psi.
Install valve into opening provided and marked for this purpose on
water heater.
Installation must conform with local codes or in the absence of local
codes, American National Standard for Recreational Vehicles, ANSI
A119.2/NFPA 50IC.
For an external electrical source, ground this unit in accordance with
National Electrical Code ANSI/NFPA70.
Your Dometic PILOT GAS WATER HEATER is now ready for operation.
Continue to HOW TO OPERATE YOUR WATER HEATER
3-B) to
FIG
3-D).
FIG
set inlet pressure higher
DO NOT
1/2 psig.
WARNING
WARNING
3-G) that complies with
FIG
CONSUMER SAFETY WARNINGS
store or use gasoline or other flammable vapors and liquids in
DO NOT
the vicinity of this or any other appliance.
Should overheating occur, or gas supply fail to shut off, turn OFF
3-D).
FIG
manual gas control valve to appliance, or turn gas OFF at the LP
tank. On ELECTRONIC IGNITION MODEL turn operating switch to OFF
position and remove red wire from left hand terminal of ECO switch
or turn gas OFF at the LP tank.
Use with LP gas only.
Shut off gas appliances and pilot lights when refueling.
On PILOT RELIGHT MODELS, turn off the ignition module when
refueling gasoline tanks or LP tanks.
Turn gas OFF at the LP tank when vehicle is in motion. This disables
all gas appliances and pilot lights. Gas appliances must never be
operated while vehicle is in motion. Unpredictable wind currents
may be created which could cause flame reversal in the burner
tube, which could result in fire damage. The thermal cut off fuse
could also be unnecessarily activated resulting in a complete
shutdown of the water heater requiring replacement of the thermal
cut off. See maintenance of electronic ignition water heaters for
further explanation of the thermal cut off.
LP tanks must be filled by a qualified gas supplier only.
HOW TO OPERATE YOUR WATER HEATER
Do not smoke or have any flame near an open faucet.
If water heater has not been used for more than two weeks, hydrogen
gas may form in water line. Under these conditions to reduce the risk
of injury, open hot water faucet for several minutes at kitchen sink
before you use any electrical appliance connected to hot water system.
If hydrogen gas is present, you will probably hear sounds like air
escaping through the pipe as water begins to flow.
Do not tamper with pilot orifice.
Do not operate without water in tank.
PILOT OPERATION
1. Water heater may be equipped with a White Rodgers
Robertshaw Unitrol
2. Turn gas control valve knob (
3. Wait at least five minutes to allow accumulated gas in burner
compartment to escape.
FOR WHITE RODGERS
a. Turn lighting control knob (7-B) to PILOT position and hold
against stop while lighting pilot burner.
b. Allow pilot to burn thirty seconds then release lighting control
knob.
c. Turn lighting control knob (7-B) to ON position.
d. If pilot does not remain lit, repeat operation allowing longer
period before releasing lighting control knob.
e. Set temperature selection lever (7-A) at mark between warm and
hot position.
f. Close access door.
3
WARNING
EXPLOSION OR FIRE
CAUTION
FIRE
WARNING
SCALDING INJURY
CAUTION
PRODUCT FAILURE
Control 7.
®
FIG
7-B) to OFF position.
FIG
CONTROL ( 7)
®
FIG
or
®