Atwood 4-E Manuel d'instructions d'installation - Page 2

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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.

•

vent water heater with venting system serving another appli-

DO NOT

ance.

•

vent water heater to an outside enclosed porch area.

DO NOT

• Protect building materials from flue gas exhaust.

• Install water heater on an exterior wall, with access door opening to

outdoors.

•

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-

DO NOT

cuit board) has been disconnected.

•

use battery charger to supply power to water heater even

DO NOT

when testing.

USA AND CANADA

FOLLOW ALL APPLICABLE STATE AND LOCAL CODES

IN THE ABSENCE OF LOCAL CODES OR REGULATIONS

• 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)

2. Provide adequate clearance at rear of unit for service of water

FIG

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.

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 (

FIG

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.

REFER TO CURRENT STANDARDS OF

12). Make 120 VAC electrical connec-

• 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 min-

imum of 14 AWG and attachment plug must be rated at 15 amps.

ELECTRICAL DAMAGE

Label all wires before disconnecting when servicing controls.

•

Verify proper operation after servicing.

•

ELECTRONIC IGNITION

: It is recommended unit be connected directly to a 12V DC bat-

NOTE

tery or to filtered side of an AC/DC converter. Avoid connections to

unfiltered side of an AC/DC converter whenever possible. Use a mini-

mum of 18 gauge wire, UL and CSA listed.

1. Refer to Wiring Diagram (

ient location. Position wall plate with letters up. Before making con-

nections turn switch OFF.

2. Install wires see

10 & 11.

FIG

PILOT RELIGHT -

FIG

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 -

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 (

9).

FIG

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 (

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.

PRODUCT DAMAGE

• Do not pull on main burner tube (

5. Erect side walls and cut opening. See chart and

Frame with 2x2 lumber (or equivalent).

CUTOUT

(FIG 1 & 2)

CAPACITY

Gallon

1-A

4 - 6

12-5/8˝

15-3/4˝

MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTION

Sides:

0˝

Back:

0˝

6. Bend all flanges 90˚ along scored lines (

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

12). Install remote switch in a conven-

FIG

2) hot water outlet female

FIG

9) by sliding grommet (9-B)

FIG

CAUTION

3-F).

FIG

CUT OUT DIMENSION

1-B

16-1/4˝

Top:

0˝

Bottom:

0˝

3-A).

FIG

DEPTH

2-C

17-5/8˝

20-5/8˝