Atwood Mobile Products EH20 User's Manual

Atwood Mobile Products Water Heater User's Manual - EH20.
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1

SAFETY INFORMATION

FOR YOUR SAFETY

READ ALL INSTRUCTIONS BEFORE OPERATING APPLIANCE

REFER TO THE RATING PLATE FOR M0DEL NUMBER

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

Installer:

Provide these instructions to the consumer.

Consumer:

Keep documents for future reference.

 WARNING

FIRE

• Do not smoke or have any flame near an open faucet. 

If you have not used this water heater for more than two weeks,
hydrogen gas may result. Under these conditions to reduce the risk of
injury, open the hot water faucet for several minutes at the kitchen sink
before you use any electrical appliance connected to hot water system.

If hydrogen is present, you will probably hear sounds like air escaping
through the pipe as water begins to flow. Allow the water to flow until
these sounds disappear.

INSTALLATION

1. Position water heater on plywood floor (5/8˝ minimum). Locate at or

below engine level.

2.

MODELS EHM4 & EHM6:

Secure to flooring with eight No. 12 x 3/4˝ wood screws
through the front and rear hold-down bracket. See FIG 1-C.

MODELS EHP10, EHM11, E20, & EH20:

Secure to flooring with eight 12-24 UNC nuts and bolts and
eight No. 12 type A washers (not included). See FIG 1-C.

3. Connect both 1/2˝ NPT water lines (FIG 1-A hot water outlet female

and FIG 1-B cold water inlet female). Always use pipe lubricant on
threads when connecting hot and cold water couplings. It is
recommended that a suitable plastic fitting be used.

4. Fill water heater tank and check all connections for water leaks 

(FIG 1-A & B).

5. Connect 5/8˝ diameter SAE 20R3 or equivalent coolant hose to heat

exchange tubes at rear or front of water heater (FIG 3-D). Use a SAE
J536a type E hose clamp or equivalent.

FOR COOLANT LINE CIRCUIT:

Push hose end (with clamp attached) onto tube as far as possible.
Spread hose clamp, slide it past annular groove and release (FIG 3
A,B,C,D).

EHP-10 MODEL WATER HEATER INSTALLATION: FIG 4 

Install the normally closed vacuum valve (4-A) and vacuum-operated
water valve (4-B) as shown in. Install these controls as close to the
vacuum source as possible. Connect electric operated vacuum valve
to the temperature control system (provided).

 WARNING

SCALDING INJURY

EHP-10 MODEL WATER HEATER:
• Install only the specified temperature control system.

6. Bleed air from the entire coolant system for proper operation of

both engine and water heater.

7. Connect electric supply at junction box (FIG 1-D) with armored cable or

conduit with capacity of 1400 watts or greater (wiring FIG 5-6).

NOTE

: For marine installation, use conductors as specified by sub chapter

S, part 183.425, table 5 of chapter 1 - Coast Guard Department of
Transportation Code of Federal Regulations Title 33.

8. To ground water heater, connect grounding wire from electrical

service to the green wire.

 WARNING

EXPLOSION

MARINE INSTALLATION

ONLY

• Locate switch in an area where ignition protection is not required.

9. 

EHM6, EHM11, EHP-10, E20 AND EH20: 

Use UL LISTED ON/OFF switch rated for 15 amps/125V AC.

EHM6-220, EHM11-220, E20-220 and EH20-220:

Use UL LISTED ON/OFF switch rated for 10 amps/220-240V AC.

10. Fill the heater with water. Open the hot water faucet connected to

the heater until all air is gone.

11. 

EHM6, EHM11, EHP-10, E20 and EH20:

Connect to 110-120V AC supply (see wiring FIG 5).
EHM6-220, EHM11-220, E20-220 and EH20-220:

Connect to a 220-240V AC supply (see wiring FIG 6).

12. Thermostat is factory set and is not adjustable.
13. Replace cover.

 CAUTION

PRODUCT DAMAGE

• Do not operate without water in tank

14. Turn remote switch to ON. Your water heater is now operating.

NOTE

: This water heater is equipped with temperature & pressure relief 

valve that complies with the standard for Relief Valves & Automatic
Gas Shutoff Devices for Hot Water Systems, ANSI Z21.22. (FIG 2).

NOTE

:  Allow for complete drainage of both valve and discharge line.

 WARNING

SCALDING

• Pressure temperature relief valve is not serviceable, it must be replaced.
• Tampering with valve will result in scalding injury.
• Tampering with valve will void warranty.

 WARNING

EXPLOSION

• Do not place a valve, plug or reducing coupling on outlet port of

pressure temperature relief valve or block the discharge opening.

• If you use a discharge line, do not use a reducing coupling or other

restriction that is smaller than the outlet of the relief valve.

• Install temperature and pressure equipment, required by local

codes, to protect against excessive pressures and temperatures.

• The Combination Temperature and Pressure relief valve must be

installed into the water heater coupling provided and marked.

• Orient the valve or provide tubing so that any discharge from the

valve will exit only within 6 inches above, or at any distance below
the structural floor and cannot contact any live electrical part.

MARINE WATER HEATER

ALL ELECTRIC

9

LITERATURE NUMBER

MPD  93757

•Installation •Operation •Maintenance

ENGLISH, FRANÇAIS (CANADA)

Effective 11/19/07

Atwood Mobile Products garantit ce produit à l'acheteur initial, suivant les termes
stipulés ci-dessous, contre tout défaut de matériel ou de fabrication, pendant une
période de deux ans à compter de la date d'achat. 

La responsabilité d'Atwood décrite ci-dessous se limite au remplacement, à la
réparation ou au remplacement du produit par un produit reconditionné, à la
discrétion du fabricant. La présente garantie est annulée si le produit est
endommagé du fait d’un accident, d’une utilisation non raisonnable, d’une
négligence, d’une modification du produit ou de toute autre cause non liée au
matériau ou à un vice de fabrication. La présente garantie ne s'applique qu'à
l'acheteur initial et elle est soumise aux conditions suivantes :

1. Pendant une période de deux ans, à compter de la date d'achat, Atwood

remplacera tout le chauffe-eau si le réservoir interne fuit pour des raisons de
corrosion. La présente garantie couvre les frais raisonnables de main-d’œuvre
nécessaires au remplacement du chauffe-eau.

2. Pendant deux ans, à compter de la date d'achat, Atwood réparera ou remplacera

toute pièce trouvée défectueuse en raison du matériau ou d'un vice de fabrication.
La présente garantie couvre les frais raisonnables de main-d’œuvre nécessaires au
retrait et au remplacement de la pièce. Les visites pour l’entretien chez le client ne
sont pas prises en charge et restent donc la responsabilité du client.

3. La présente garantie ne couvre pas les articles suivants, qui sont considérés

comme faisant partie de l’entretien régulier :

a. réglage de la soupape de décharge de type pression-température

4. Dans l'éventualité d'une réclamation de garantie, l’acheteur doit contacter, à

l'avance, soit un centre de service Atwood agréé, soit le Service à la clientèle
Atwood. La réclamation de garantie doit être exécutée dans un centre de service
Atwood agréé (une liste vous sera fournie gratuitement) ou selon les procédures
reconnues par le Service clientèle Atwood (Consumer Service Department)
Atwood Mobile Products, 1120 North Main St., Elkhart IN 46514 États-Unis.
Téléphone : (574-264-2131). 

5. Les pièces retournées (ou le chauffe-eau) doivent être expédiées à Atwood, tout

port payé. Un avoir pour les frais d'expédition sera compris avec la réclamation de
garantie. Les pièces défectueuses (ou le chauffe-eau) deviennent la propriété

d’Atwood Mobile Products et doivent être retournées à Consumer Service
Department, Atwood Mobile Products, 6320 Kelly Willis Road, Greenbrier, TN
37073 États-Unis.

6. La présente garantie est valide uniquement si l'unité est installée selon les

consignes d'installation fournies, en conformité avec les codes locaux et
nationaux.

7. La période de garantie pour les pièces de remplacement (ou le chauffe-eau) est la

période inutilisée de la période de garantie initiale ou quatre-vingt dix (90) jours,
selon ce qui est le plus long.

8. Tout dommage ou toute déficience résultant d'une mauvaise utilisation (y compris

le manquement à faire effectuer les réparations nécessaires), d'une mauvaise
mise en application, de modifications, de dommages causés par l'eau ou par le
gel relèvent de la responsabilité de l’acheteur.

9. Atwood n’est aucunement responsable de l’impossibilité d’utiliser le véhicule, de

toute perte de temps, de tout dérangement et de tous frais d'essence, de
téléphone, de déplacement, de logement, de perte ou de dommages aux biens
personnels ou de perte de revenus. Certains États ne permettent pas l’exclusion
ou la limitation des dommages accessoires ou indirects ; il est donc possible que
les limitations ou exclusions ci-dessus ne s'appliquent pas à votre cas.

10. Toute garantie implicite est limitée à une période de deux (2) ans. Certains États

ne permettent pas de limiter la période d'une garantie implicite, donc il est
possible que la limite ci-dessus ne vous concerne pas. La présente garantie vous
accorde des droits légaux particuliers mais il est également possible que vous
ayiez certains droits supplémentaires, selon les États.

11. Les pièces de remplacement (composantes ou réservoirs) achetées en dehors de

la garantie initiale du chauffe-eau sont couvertes par une garantie de 90 jours ;
ceci comprend la pièce sans frais et les frais raisonnables de main-d'œuvre
découlant du remplacement.

Ce chauffe-eau Atwood est conçu pour utilisation en véhicule de plaisance et dans le
but de chauffer l'eau, comme le stipule la plaque signalétique fixée au chauffe-eau.
Toute autre utilisation, à moins d’une autorisation écrite du Service technique
Atwood, annule la présente garantie.

GARANTIE LIMITÉE POUR CHAUFFE-EAU ÉLECTRIQUE ATWOOD

ATWOOD ELECTRIC WATER HEATER 

LIMITED WARRANTY

Atwood Mobile Products warrants to the original owner and subject to the below
mentioned conditions, that this product will be free of defects in material or
workmanship for a period of two years from the original date of purchase.
Atwood’s liability hereunder is limited to the replacement of the product, repair of
the product, or replacement of the product with a reconditioned product at the
discretion of the manufacturer. This warranty is void if the product has been
damaged by accident, unreasonable use, neglect, tampering or other causes not
arising from defects in material workmanship. This warranty extends to the original
owner of the product only and is subject to the following conditions:
1.  For a period of two years from the date of purchase, Atwood will replace the

complete water heater if the inner tank leaks due to corrosion. This warranty
includes reasonable labor charges required to replace the complete water heater.

2.  For two years from the date of purchase, Atwood will repair or replace any part

defective in material or workmanship. This warranty includes reasonable labor
charges, required to remove and replace the part. Service calls to customer’s
location are not considered part of these charges and are, therefore, the
responsibility of the owner.

3.  This warranty does not cover the following items classified as normal maintenance:

a. adjustment of pressure-temperature relief valve

4.  

In the event of a warranty claim, the owner must contact, in advance,
either an authorized Atwood Service Center or the Atwood Service
Department. Warranty claim service must be performed at an authorized
Atwood Service Center (a list will be provided at no charge) or as
approved by the Consumer Service Department, Atwood Mobile Products,
1120 North Main St., Elkhart, IN   46514  USA. Phone: (574-264-2131). 

5.  Return parts (or water heater) must be shipped to Atwood “Prepaid”. Credit for

shipping costs will be included with the warranty claim. The defective parts (or
water heater) become the property of Atwood Mobile Products and must be
returned to the Consumer Service Department, Atwood Mobile Products, 6320
Kelly Willis Road, Greenbrier, TN   37073  USA.

6.  This warranty applies only if the unit is installed according to the in-stallation

instructions provided and complies with local and state codes.

7.  The warranty period on replacement parts (or water heater) is the unused

portion of the original warranty period or ninety (90) days, whichever is greater.

8.  Damage or failure resulting from misuse (including failure to seek proper repair

service), misapplication, alterations, water damage, or freezing are the owner’s
responsibility.

9.  Atwood does not assume responsibility for any loss of use of vehicle, loss of

time, inconvenience, expense for gasoline, telephone, travel, lodging, loss or
damage to personal property or revenues. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above
limitations or exclusions may not apply to you.

10. Any implied warranties are limited to two (2) years. Some states do not allow

limitations on how long an implied warranty lasts, so the above limitation may
not apply to you. This warranty gives you specific legal rights and you may
also have other rights which vary from state to state.

11. Replacement parts (components or tanks) purchased outside of the original

water heater warranty carry a 90 day warranty. This includes the part at no
charge and reasonable labor charges to replace it.

This Atwood heater is designed for use in recreational vehicles for the purpose of
heating water as stated in the “data plate” attached to the water heater. Any other
use, unless authorized in writing by the Atwood Engineering Department, voids this
warranty.

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