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Atwood Mobile Products XT G16EXT User Manual Page 2

Atwood mobile products water heater user manual.
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INTENTIONALLY LEFT BLANK
• 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
CRITICAL INSTALLATION WARNINGS
locations, hard or extra hard usage. It must be a flexible cord such
• Install in recreation vehicles only. RV's are recreation vehicles
as type S, SO, ST, STO, SJ, SJT, SJTO, HS or HSO cord as described
designed as temporary living quarters for recreation, camping, or
in National Electrical Code, ANSI/NFPA 70. The length of external
travel use having their own power or towed by another vehicle.
cord to water heater, measured to face of attachment plug, shall be
• All combustion air must be supplied from outside the RV, and all
no less than 2 feet nor more than 6 feet. Supply cord must be a
products of combustion must be vented to outside the RV.
minimum of 14 AWG and attachment plug must be rated at 15 amps.
vent water heater with venting system serving another
DO NOT
appliance.
CAUTION
vent water heater to an outside enclosed porch area.
DO NOT
• Protect building materials from flue gas exhaust.
ELECTRICAL DAMAGE
• Install water heater on an exterior wall, with access door opening to
Label all wires before disconnecting when servicing controls.
outdoors.
Verify proper operation after servicing.
modify water heater in any way.
DO NOT
alter water heater for a positive grounding system.
DO NOT
ELECTRONIC IGNITION
HI-POT water heater unless electronic ignition system
DO NOT
: It is recommended unit be connected directly to a 12V DC
NOTE
(circuit board) has been disconnected.
battery or to filtered side of an AC/DC converter. Avoid connections to
use battery charger to supply power to water heater even
DO NOT
unfiltered side of an AC/DC converter whenever possible. Use a
when testing.
minimum of 18 gauge wire, UL and CSA listed.
-
-
1. Refer to Wiring Diagram (
12). Install remote switch in a
USA AND CANADA
FOLLOW ALL APPLICABLE STATE AND LOCAL CODES
FIG
convenient location. Position wall plate with letters up. Before
,
:
IN THE ABSENCE OF LOCAL CODES OR REGULATIONS
REFER TO CURRENT STANDARDS OF
making connections turn switch OFF.
• Recreation Vehicles ANSI A119.2/NFPA 501C.
2. Install wires see
10 & 11.
• National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149 Installation Codes
FIG
• Federal Mobile Home Construction & Safety Standard, Title 24 CFR, part
HEAT EXCHANGE MODELS -
5
FIG
3280, or when this Standard is not applicable, the Standard for Manufactured
1. Push a 5/8˝ diameter coolant system hose (5-A) [with SAE 053 A
Home Installations (Manufactured Home Sites, Communities and Set-Ups),
Type "E"clamp attached] onto heat exchanger tube (5-B) making a
ANSI A255.1 and/or CAN/CSA-Z240 MH Series, Mobile Homes.
tight connection.
• National Electrical Code ANSI/NFPA No. 70 and/or CSA C22.1
2. Spread hose clamp and slide toward heat exchange unit past
• Park Trailers A119.5
annular groove (5-C) and release.
• CSA standard Z240 RV Series, Recreational Vehicle.
3. Continue to HOW TO OPERATE YOUR WATER HEATER and/or Electronic
• ASSE Standard 1017 (Mixing Value).
Ignition OPERATION.
• NSF Standard ANSI/NSF 14-2003 (All Hoses and Plastic Fittings).
CONTINUE GENERAL INSTALLATION
GENERAL INSTALLATION
4. Connect both 1/2˝ NPT water lines (
2) hot water outlet female
FIG
and cold water inlet female and 3/8˝ flared LP gas line to the water
This is a common installation for water heaters. There are other
heater (
9).
FIG
approved methods such as Flush Mount (MPD 93948) installations.
a. Allow flexibility in water and gas lines so you can pull unit
Consult with your Field Auditor, Account Manager, or the Atwood
forward through wall one inch past skin.
Service Department if you have additional questions.
b. Seal gas line entrance opening (
9) by sliding grommet (9-B)
FIG
1. Locate water heater on floor of coach before erecting side walls.
onto 3/8˝ tubing (9-D) before flaring tubing (9-E). Pull gas line and
The water heater tank must be permanently supported at the same
grommet through opening in housing (9-A). Connect flare fitting
level as the bottom of sidewall cutout (by the floor or a raised floor)
(9-C) and press grommet into opening. If gas line tubing is
2. Provide adequate clearance at rear of unit for service of water
already flared, cut grommet on one side. Place split grommet
FIG
connections.
over gas line and press it into opening.
2. To install water heater on carpeting, you must install appliance on a
c. Always use pipe lubricant on threads when connecting hot and
metal or wood panel that extends at least three inches beyond the
cold water couplings. A suitable plastic fitting is recommended.
full width and depth of appliance.
3. If the appliance is installed where connection or tank leakage will
CAUTION
damage adjacent area, install a drain pan (which can be drained to
out side of coach) under water heater.
PRODUCT DAMAGE
• Do not lift, pull, push or misalign the main burner tube (
3-F).
FIG
WIRING
All wiring must comply with applicable electrical codes.
5. Erect side walls and cut opening. See chart and
1.
FIG
Frame with 2x2 lumber (or equivalent).
COMBINATION GAS/ELECTRIC MODELS are designed to operate with gas,
electricity, or a combination of both.
CUTOUT
(FIG 1 & 2)
• Use electrical metallic tubing, flexible metal conduit, metal clad
cable, or nonmetallic-sheathed cable with grounding conductor. Wire
CAPACITY
CUT OUT DIMENSION
DEPTH
must have a capacity of 1400 watts or greater. The wiring method
Gallon
1-A
1-B
2-C
must conform to applicable sections of article 551 of National
6
12-5/8˝
16-1/4˝
18.5˝
Electrical Code ANSI/NFPA 70.
10
15-3/4˝
16-1/4˝
21.75˝
1. Refer to Wiring Diagram (
12). Make 120 VAC electrical
FIG
MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTION
connections from junction box on back of unit.
Sides:
Top:
a. Connect hot lead to (1) Black.
Back:
Bottom:
b. Connect common lead to (2) White.
c. Connect ground wire from electrical service to (3) green ground
6. Bend all flanges 90˚ along scored lines (
3-A).
FIG
lead in junction box 3.
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.
CAUTION
8. Push unit against caulking, secure 4-corner brackets (
3-B) to
FIG
PRODUCT DAMAGE
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
• When using Romex
®
with a bare earth ground, take care to position
holes provided around the flange of the water heater housing. Check all
ground wire so it does not contact the heating element terminals.
gaskets, they must adhere to the pan creating an air tight seal.
2
15

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