Atwood Mobile Products 10-E, 4-E User Manual
LITERATURE NUMBER
WATER HEATER
MPD 93755
L.P. GAS
9
4 - 6 - 10 GALLON
Models 4-E & 10-E
ENGLISH, FRANCAIS (et Canada) •Installation •Operation •Maintenance
Effective 11.29.07
This water heater design has been certified by the Canadian
Standards Association for installation in recreation vehicles. This
water heater is not for use in marine applications.
SERVICE CALLS & QUESTIONS
Location and phone numbers of qualified Service Centers can
be found at our website http:/www.atwoodmobile.com or call
574-264-2131 to have a Service Center List mailed.
SAFETY ALERT SYMBOLS
Safety Symbols alerting you to potential personal safety hazards.
Obey all safety messages following these symbols.
WARNING CAUTION
avoid possible avoid possible
injury or death injury and/or property damage
Installation and service must be performed by a qualified Service
Technician, Service Center, OEM or Gas Supplier.
WATER HEATER MODEL IDENTIFICATION ............................................1
DIMENSIONS ..........................................................1
WEIGHT ................................................................1
SAFETY INFORMATION..................................................................2-4
Water Heater GENERAL INSTALLATION ..............................................2-3
Wiring
Cutout Chart
Pressure - Temperature Relief Valve
Consumer Safety Warnings ..............................................................3
How to Operate Your Water Heater ..................................................3-4
Maintenance and Care Instructions ..................................................4-5
Preventative Maintenance ................................................................5
Winterizing (Flushing) Instructions ....................................................5
Pressure-Temperature Relief Valve......................................................5
Flushing to Remove Unpleasant Odor ..................................................5
FIGURES 1-12 ..........................................................................6-7
PART IDENTIFICATION ....................................................................8
Water Heater WARRANTY ..............................................................16
WARNING
FIRE OR EXPLOSION
• If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
➤ Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Evacuate
• Shut off gas supply at gas container or source.
•
DO NOT touch any electrical switch, or use any phone or
radio in vehicle.
• DO NOT start vehicle’s engine or electric generator.
• Contact nearest gas supplier or qualified Service Technician
for repairs.
• If you cannot reach a gas supplier or qualified Service
Technician, contact the nearest fire department.
•
DO NOT turn on gas supply until gas leak(s) has been
repaired.
ALL persons from vehicle.
EXPLANATION OF MODEL NUMBER (EXAMPLE)
G C H 6 AA - 10 E/P
Electronic Ignition or Pilot Relight
Revision (NUMBER)
Heating Element (SCREW-IN OR BOLT-ON)
4 - 6 - 10 gallon capacity
Engine Heat Exchange
Combination Gas and AC Electric
PROPANE)
Gas (
Older revision numbers may be 3, 4, 6, 7, 8 or 9 (_ _ _ _ _ - X _)
Regardless of your revision number the current instructions are still generally
applicable to your unit. If you have questions contact your dealer, an Atwood
Service Center or the Atwood Service Department.
- IF YOUR MODEL NUMBER IS NOT LISTED-
MODEL NUMBER CLARIFICATION
TYPE 4 GAL 6 GAL 10 GAL
Pilot Ignition G4-7 G6A-7 GC6AA-8P G10-2 GC10A-2
Electronic Ignition G6A-8E GCH6A-10E G10-3E GCH10A-4E
Pilot Relight P IN MODEL # - SEE MODEL CLARIFICATION ABOVE
Heat Exchange H IN MODEL # - SEE MODEL CLARIFICATION ABOVE
Electronic Ignition E IN MODEL # - SEE MODEL CLARIFICATION ABOVE
Combination Gas/Electric C IN MODEL # - SEE MODEL CLARIFICATION ABOVE
DIMENSIONS
ALL MODEL WIDTH HEIGHT
6 GALLON 16˝ 12.5˝ 6 GALLON 25 lbs
GALLON 16˝ 15.5˝ 10 GALLON 32 lbs
10
1
GC6AA-8 GH6-7 G10-2P GC10A-2P
GC6AA-10E GH6-8E GC10A-4E GH10-3E
SHIPPING WT.
CRITICAL INSTALLATION WARNINGS
• Install in recreation vehicles only. RV’s are recreation vehicles
designed as temporary living quarters for recreation, camping, or
travel use having their own power or towed by another vehicle.
• All combustion air must be supplied from outside the RV, and all
products of combustion must be vented to outside the RV.
DO NOT vent water heater with venting system serving another appli-
•
ance.
• DO NOT vent water heater to an outside enclosed porch area.
• Protect building materials from flue gas exhaust.
• Install water heater on an exterior wall, with access door opening to
outdoors.
DO NOT modify water heater in any way.
•
•
DO NOT alter water heater for a positive grounding system.
DO NOT HI-POT water heater unless electronic ignition system (cir-
•
cuit board) has been disconnected (DC Hi-Pot).
• DO NOT use battery charger to supply power to water heater even
when testing.
USA AND CANADA - FOLLOW ALL APPLICABLE STATE AND LOCAL CODES -
IN THE ABSENCE OF LOCAL CODES OR REGULATIONS, REFER TO CURRENT STANDARDS OF:
• Recreation Vehicles ANSI A119.2/NFPA 501C.
• National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149 Installation
Codes
• Federal Mobile Home Construction & Safety Standard, Title 24 CFR, part
3280, or when this Standard is not applicable, the Standard for Manufactured
Home Installations (Manufactured Home Sites, Communities and Set-Ups),
ANSI A255.1 and/or CAN/CSA-Z240 MH Series, Mobile Homes.
• National Electrical Code ANSI/NFPA No. 70 and/or CSA C22.1
• Park Trailers A119.5
• CSA standard Z240 RV Series, Recreational Vehicle.
GENERAL INSTALLATION
This is a common installation for water heaters. There are other
approved methods such as Baggage Compartment (MPD 90093) and
Flush Mount (MPD 93948) installations. Consult with your Field
Auditor, Account Manager, or the Atwood Service Department if you
have additional questions.
1. Locate water heater on floor of coach before erecting side walls.
The water heater tank must be permanently supported at the same
level as the bottom of sidewall cutout (by the floor or a raised floor)
FIG 2. Provide adequate clearance at rear of unit for service of water
connections.
2. To install water heater on carpeting, you must install appliance on a
metal or wood panel that extends at least three inches beyond the
full width and depth of appliance.
3. If the appliance is installed where connection or tank leakage will
damage adjacent area, install a drain pan (which can be drained to
out side of coach) under water heater.
• When a cord and plug connection to the power supply are used on
water heater, power cord must be UL listed as suitable for damp
locations, hard or extra hard usage. It must be a flexible cord such
as type S, SO, ST, STO, SJ, SJT, SJTO, HS or HSO cord as described
in National Electrical Code, ANSI/NFPA 70. The length of external
cord to water heater, measured to face of attachment plug, shall be
no less than 2 feet nor more than 6 feet. Supply cord must be a minimum of 14 AWG and attachment plug must be rated at 15 amps.
CAUTION
ELECTRICAL DAMAGE
• Label all wires before disconnecting when servicing controls.
• Verify proper operation after servicing.
ELECTRONIC IGNITION
NOTE: It is recommended unit be connected directly to a 12V DC bat-
tery or to filtered side of an AC/DC converter. Avoid connections to
unfiltered side of an AC/DC converter whenever possible. Use a minimum of 18 gauge wire, UL and CSA listed.
1. Refer to Wiring Diagram (
ient location. Position wall plate with letters up. Before making connections turn switch OFF.
2. Install wires see
PILOT RELIGHT -
1. Install unit according to GENERAL INSTALLATION instructions.
2. Refer to Wiring Diagram. Use 18 gauge wire, UL/CSA listed.
3. Read PILOT & PILOT RELIGHT OPERATIONS.
HEAT EXCHANGE MODELS - FIG 5
1. Push a 5/8˝ diameter coolant system hose (5-A) [with SAE 053 A
Type “E”clamp attached] onto heat exchanger tube (5-B) making a
tight connection.
2. Spread hose clamp and slide toward heat exchange unit past annu-
lar groove (5-C) and release.
3. Continue to HOW TO OPERATE YOUR WATER HEATER and/or Electronic
Ignition OPERATION.
CONTINUE GENERAL INSTALLATION
4. Connect both 1/2˝ NPT water lines (
and cold water inlet female and 3/8˝ flared LP gas line to the water
heater (
a. Allow flexibility in water and gas lines so you can pull unit for-
ward through wall one inch past skin.
b. Seal gas line entrance opening (FIG 9) by sliding grommet (9-B)
onto 3/8˝ tubing (9-D) before flaring tubing (9-E). Pull gas line and
grommet through opening in housing (9-A). Connect flare fitting
(9-C) and press grommet into opening. If gas line tubing is
already flared, cut grommet on one side. Place split grommet
over gas line and press it into opening.
c. Always use pipe lubricant on threads when connecting hot and
cold water couplings. A suitable plastic fitting is recommended.
FIG 12
FIG 9).
FIG 12). Install remote switch in a conven-
FIG 10 & 11.
FIG 2) hot water outlet female
WIRING
All wiring must comply with applicable electrical codes.
COMBINATION GAS/ELECTRIC MODELS are designed to operate with gas,
electricity, or a combination of both.
• Use electrical metallic tubing, flexible metal conduit, metal clad
cable, or nonmetallic-sheathed cable with grounding conductor. Wire
must have a capacity of 1400 watts or greater. The wiring method
must conform to applicable sections of article 551 of National
Electrical Code ANSI/NFPA 70.
1. Refer to Wiring Diagram (
tions from junction box on back of unit.
a. Connect hot lead to (1) Black.
b. Connect common lead to (2) White.
c. Connect ground wire from electrical service to (3) green ground
lead in junction box 3.
FIG 12). Make 120 VAC electrical connec-
CAUTION
PRODUCT DAMAGE
• When using Romex®with a bare earth ground, take care to position
ground wire so it does not contact the heating element terminals.
CAUTION
PRODUCT DAMAGE
• Do not lift, pull, push or misalign main burner tube (FIG 3-F).
5. Erect side walls and cut opening. See chart and
Frame with 2x2 lumber (or equivalent).
CUTOUT
CAPACITY CUT OUT DIMENSION DEPTH
6. Bend all flanges 90˚ along scored lines (FIG 3-A).
7. To prevent water leaks caulk thoroughly around opening, including
bend slots. Butyl Tape (1-1/3˝x1/8˝) may be substituted for caulking
material.
2
(FIG 1 & 2)
Gallon 1-A 1-B 2-C
4 - 6 12-5/8˝ 16-1/4˝ 17-5/8˝
10 15-3/4˝ 16-1/4˝ 20-5/8˝
MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTION
Sides: 0˝ Top: 0˝
Back: 0˝ Bottom: 0˝
FIG 1.
8. Push unit against caulking, secure 4-corner brackets (FIG 3-B) to
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 (
b. Slide cover (FIG 3-E) onto hinge pin.
c. Slide hinge pin into cover, snapping into clip at same time (FIG 3-D).
NOTE: To remove hinge pin, support access cover and apply force to
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 ≤ 1/2 psig.
FIG 3-C) into clip (FIG 3-D).
DO NOT set inlet pressure higher
WARNING
FIRE AND/OR EXPLOSION
• DO NOT use matches, candles or other sources of ignition when
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
CONSUMER SAFETY WARNINGS
WARNING
EXPLOSION OR FIRE
• DO NOT store or use gasoline or other flammable vapors and liquids in
the vicinity of this or any other appliance.
• Should overheating occur, or gas supply fail to shut off, turn OFF
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 refuel-
ing 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.
WARNING
EXPLOSION
• Valve is not serviceable, it must be replaced.
• Tampering with valve will result in scalding injury.
• Tampering with valve will void warranty.
• DO NOT place a valve, plug or reducing coupling on outlet part of
relief valve.
THIS VALVE IS A SAFETY COMPONENT AND MUST NOT BE REMOVED FOR ANY REASON
OTHER THAN REPLACEMENT.
ture and pressure relief valve (FIG 3-G) that complies with 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:
•
DO NOT install anything less than a combination temperature-pressure
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 ATWOOD PILOT GAS WATER HEATER is now ready for operation.
Continue to HOW TO OPERATE YOUR WATER HEATER
This water heater is equipped with a tempera-
HOW TO OPERATE YOUR WATER HEATER
CAUTION
FIRE
• 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.
WARNING
SCALDING INJURY
• Do not tamper with pilot orifice.
CAUTION
PRODUCT FAILURE
• Do not operate without water in tank.
PILOT OPERATION
1. Water heater may be equipped with a White Rodgers®or
Robertshaw Unitrol®Control
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 peri-
od before releasing lighting control knob.
e. Set temperature selection lever (7-A) at mark between warm and
hot position.
f. Close access door.
FIG 7.
FIG 7-B) to OFF position.
®
CONTROL (FIG 7)
3
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