By atwood@ lighting instructions all furnaces 79-11 8500-iv 8900-111 2 stage furnaces this information must be attached to the appliance at all times see installation and owners' manual for complete instructions and maintenance items for your model unit! 9/7/05 literature number mpd 32025. Atwood’s liability hereunder is limited to the replacement of the product, repair of the product, or replacement of the product with a. If the information in this manual is not followed exactly, a fire or explosion may result causing. LITERATURE NUMBER MPD 93050 L.P. GAS WATER HEATER 6 & 10 GALLON XT Models.
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EXPLOSION
• Do not install anything less than a combination temperature-pressure
relief valve certified by a nationally recognized testing lab that maintains
periodic inspection of product of listed equipment or materials, as
meeting the requirements for Relief Valves and Automatic Gas Shutoff
Devices for Hot Water Supply Systems, ANSI Z21.22. This valve must
have a maximum set pressure not to exceed 150 psi.
• Installation must conform with local codes or in the absence of local
codes, American National Standard for Recreational Vehicles, ANSI
• If you use an external electrical source, ground this unit in
accordance with National Electrical Code ANSI/NFPA70. All wiring
• 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 the applicable sections of article 551 of
CAUTION
PRODUCT DAMAGE
• Label all wires before disconnecting when servicing controls.
• When using Romex®with a bare earth ground, take care to position
ground wire so it does not contact the heating element terminals.
OPERATION
1. Check to be sure water completely fills the water heater tank.
2. Locate remote water heater operation switch. (see vehicle owners
3. Turn remote switch to ON.
PRODUCT FAILURE
• Inspect for leaks.
A leak in the heat exchanger or its connecting line could cause loss of
We recommend installer provide a means for by-passing the engine
coolant heat exchanger located on water heater. Frequently inspect
connecting lines and heater to insure that a leak has not developed.
SCALDING INJURY
• Engine coolant circulating through the heat exchanger for more than
NOTE: The EHP-10 is equipped with a thermostatically controlled high
efficiency heat exchange system which will prevent the water from
4. This water heater is equipped with a manual reset high-temperature
a. Turn the remote switch to the OFF position.
c. Depress button on the high-temperature limit switch.
d. Replace access cover. Be sure you also replace insulation in cover.
e. If it malfunctions again, contact an authorized Atwood Service
MAINTENANCE
1. Inspect all lines to and from the heat exchanger at regular intervals.
SCALDING INJURY
• Turn off water heater and wait for storage water to cool before
WINTERIZING (FLUSHING) INSTRUCTIONS
To insure the best performance of your water heater and add to the life
of the tank, periodically drain and flush the water heater tank. Before
long term storage or freezing weather drain and flush the tank.
1. Turn off main water supply (the pump or water supply (the pump or
2. Drain Water Heater Tank by removing the drain plug. If the water
flows sporadically or trickles instead of a steady stream of water, we
recommend the following action; first open the Pressure
Temperature Relief Valve to allow air into the tank and secondly,
take a small gauge wire or coat hanger and poke through the drain
3. After draining the tank, because of the placement of the Drain Plug,
approximately two quarts of water will remain in the tank. This water
contains most of the harmful corrosive particles. To remove these
harmful corrosive particles flush the tank with either air or water.
Whether using air or water pressure, it may be applied through the
inlet or outlet on the rear of the tank or the Pressure Temperature
Relief Valve. (If using the Pressure Temperature Relief Valve the
Support Flange must be removed). The pressure will force out the
If you use water pressure, pump fresh water into the tank with the
assistance of the on-board pump or use external water for 90
seconds to allow the fresh water to agitate the stagnant water on
the bottom of the tank and force deposits through the drain
opening. Continue repeating adding water and draining until the
particles have been cleared from the water remaining in the tank.
4. Replace the Drain Plug and close the Pressure Temperature Relieve
Valve. the approximately two quarts of water remining in the tank after
draining will not cause damage to the tank should freezing occur.
PRESSURE-TEMPERATURE RELIEF VALVE
EXPLOSION
• Do not place a valve, plug or reducing coupling on outlet part of
A Pressure Temperature Relief Valve, dripping while the water heater is
running, DOES NOT mean it is defective. During normal expansion of
water, as it is heated in the closed water system of a recreation
vehicle, the Pressure Temperature Relief Valve will sometimes drip. The
Atwood water heater tank is designed with an internal air gap at the
top of the tank to reduce the possibility of dripping. In time, the
expanding water will absorb this air and it must be restored.
SCALDING INJURY
• Turn off water heater before opening pressure-temperature relief
valve to establish air space. Storage water must be cool.
1. Turn off main water supply (the pump or water hook up source).
3. Open the hot water faucet closest to the water heater.
4. Pull handle of pressure temperature relief valve straight out and
5. Allow pressure temperature relief valve to snap shut; close faucet;
6. Turn on water heater and test.
• At least once a year manually operate pressure-temperature relief
When pressure-temperature relief valve discharges again, repeat above
procedure. For a permanent solution, we recommend one of the following:
• Install a pressure relief valve in cold water inlet line to water heater
and attach a drain line from valve to outside of coach. Set to relieve
• Install a diaphragm-type expansion tank in cold water inlet line.
Tank should be sized to allow for expansion of approximately 15 oz.
of water and pre-charged to a pressure equal to water supply
pressure. These devices can be obtained from a plumbing contractor
(-)
(+)
1. Couper l'alimentation principale en eau (la pompe ou la source
2. Laisser l’eau refroidir ou la laisser couler jusqu’à ce qu’elle soit froide.
3. Ouvrir le robinet d’eau chaude le plus proche du chauffe-eau.
4. Tirer la poignée de la soupape de décharge de type pression-
température vers soi et laisser l'eau couler, jusqu'à ce qu'elle
5. Laisser la soupape de décharge de type pression-température
revenir brusquement en position fermée ; fermer le robinet ; ouvrir
6. Allumer le chauffe-eau et le tester.
• Faire fonctionner manuellement la soupape de décharge de type
pression-température au moins une fois par an (FIG 10).
Lorsque la soupape de décharge de type pression-température
s’écoule à nouveau, répéter la procédure ci-dessus. Pour une solution
permanente, nous vous conseillons l'une des choses suivantes :
• Installer une soupape de décharge de type pression-température
dans la conduite d’arrivée d'eau froide du chauffe-eau et fixer une
conduite d’évacuation sur la vanne extérieure du véhicule. Régler la
• Installer un réservoir d’expansion de type membrane dans la
conduite d’arrivée d'eau froide. Le réservoir devrait permettre une
dilatation d’environ 426 ml d'eau et une mise sous pression égale à
la pression de l'alimentation en eau. Ces dispositifs sont disponibles
RINCER POUR ÉLIMINER LES MAUVAISES ODEURS
Une odeur d’œuf pourri (sulfure d’hydrogène) pourra se dégager du fait
de l’action électrogalvanique du matériau de gainage qui dégage de
l’hydrogène de l’eau. En cas de présence de souffre dans l’alimentation
en eau, l’eau et le souffre se mélangent pour donner une odeur désagréable.
1. Couper l’alimentation principale en eau. Évacuer l’eau du réservoir du
chauffe-eau et réinstaller le bouchon de vidange. Retirer la soupape
de décharge de type pression-température. Préparer une solution de
4 parts de vinaigre blanc pour 2 parts d’eau. Au moyen d’un
entonnoir, verser la solution à l’intérieur du réservoir, avec précaution.
2. Effectuer 4 à 5 cycles du chauffe-eau avec la solution indiquée ci-
3. Retirer le bouchon de vidange et évacuer toute l’eau du réservoir.
Rincer le chauffe-eau pour en éliminer tout sédiment. Il est possible de
rincer le réservoir avec de l’air sous pression ou avec de l’eau fraîche.
Appliquer la pression soit sur les clapets d’arrivée ou de sortie à l’arrière
du réservoir, soit au raccord de la soupape de décharge de type
pression-température se trouvant à l’avant de l’unité.
POUR RINCER LE RÉSERVOIR AVEC DE L’AIR SOUS PRESSION :
L’air sous pression devra passer par le raccord de la soupape de
décharge de type pression-température. Le robinet de vidange
ouvert, l’air sous pression forcera l’eau restante à s’écouler de l’unité.
POURRINCER LE RÉSERVOIR AVEC DE L’EAU SOUS PRESSION :
Il faudra pomper de l’eau fraîche dans le réservoir, soit avec la pompe
transportée à bord, soit avec de l’eau sous pression externe.
Continuer le processus de rinçage pendant environ 5 minutes ; ceci
permet à l’eau fraîche de remuer l'eau stagnante du fond du réservoir
et de pousser les dépôts par l’orifice d’évacuation.
4. Replacer le bouchon de vidange et la soupape de décharge de type
5. Remplir le réservoir avec de l’eau fraîche ne contenant pas de souffre.
Le chauffe-eau Atwood est conçu pour être utilisé dans les véhicules de
plaisance. Si vous utilisez votre véhicule fréquemment ou pour des
périodes prolongées, rincer le chauffe-eau plusieurs fois par an
permettra de prolonger la vie du réservoir d’approvisionnement.
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Atwood water heaters are very popular in the RV industries because of its compact design and features. These water heaters are placed in RVs for the supply of hot water during travel. There are tankless water heater models and with tank models of 4 to 10 gallons volume. There are marine water heaters as well with capacity from 4 to 20 gallons. The parts of this water heater are also available with ease in the online stores. Since the water heaters are well-liked; therefore, we are going to discuss everything about the heater in this Atwood water heater manual.
I Can’t Believe How Incredible is it’s INSTANT Performance!!!
Name
Stiebel Eltron
Dimension
4.6 x 16.6 x 14.5 inches
Weight
1 pound
Watt
18000 Watt
Capacity
0.37 Gallon/m
Power Source
Electricity 220-240 Volt
You can buy these heaters easily form an online store. You can either purchase a gas model or gas and electric model. Usually, people prefer a gas and electric model as it will provide you water when you are out of gas. Gas water heaters do not work while the RV is running but the electric heater can provide you with hot water at that time as well. This Atwood water heater manual will cover installations, removal, problems, warnings, and precautions. We will discuss everything in detail which will help you to maintain your heater.
Atwood Water Heater Manual
We will cover the important aspects of the heater in this Atwood water heatermanual. We will guide you step by step for every procedure. Let’s start with the removal of an old water heater.
How to remove an old water heater?
Before we dive into the installation of the water heater in this Atwood water heater manual, we will cover how to remove the old water heater from RV. The steps below are general for Atwood water heater models.
You will first need to turn off the gas and electric supply.
Remove the water lines from the heater. There will be two connections for inlet and outlet.
Now open the electrical junction box and remove the wire connections. Remember the color of wire connections, this will help you in installation.
Now you need to unscrew the heater form outside.
Remove the gas connection.
Take out your water heater carefully as it will be still connected with some wires.
Now disconnect those wires and remember the colors.
Installation
There are many models of Atwood water heaters. But all of them have a similar kind of installation procedure with a small change. In this Atwood water heater manual, we will discuss the general installation of the heater in an RV.
You will first need to place a connector on the water inlet and outlet of your new heater. The new one does not come with it. Use a metal or PVC connector for that.
Place your heater and connect the wires as per the colors you remembered.
Put in the heater and screw it.
Connect the gas line with the water heater and tighten the flare nut.
Now connect the wires in the terminal box.
Connect the water lines.
Open the water and gas valve and check your heater. Switch on the heater after filling the tank with water.
A common thermostat problem and its solution
If you are not getting hot water, then there can be a problem with the thermostat. This happens often so we are going to discuss it in this Atwood water heater manual. There is a light located in your heater. It lights up when the heater is working. If the light does not turn on or flickers, then there can be the following problems.
Problem with the fuse
Thermostat problem
Wiring problem
The fuse is fitted in series with the wire. It is usually covered with transparent plastic to check whether it is broken or not. If it is broken, then replace it with a new fuse. Remember to check the fuse rating of old fuse and buy a new one having the same rating.
If the fuse is fine and the light is still off, there might be a problem with the thermostat assembly. You can replace the ECO and Thermostat assembly. These are easily available in online stores. Take out the connectors and remember the wire where they were. Remove the cover, you will see two male connectors. You can take out those by turning anti-clockwise. Then replace them with a new one. Buy the kit according to the specification of your heater.
Wiring problems can be dangerous; therefore, it is better to seek professional’s help for this if you are unable to figure out.
Warning and Safety precautions
You need to care about the warning and consider the safety precautions carefully. This will save you from losses and increase the life of your appliance.
In case of gas leakage, get out of the van immediately and close the gas valve. Do not use anything that can create a spark. Call a technician immediately.
The water heaters are recommended to use as they are. Never try any modification.
Always use the rated parts. Do not try to install anything with a higher or lower value.
For checking the gas leakage never use candles. Use water and soap solution or buy a leakage checking solution from a store.
Use plumbing tape or Teflon when connecting the coupling for water lines.
For cleaning the tank, first make sure the heater, gas and electric power are closed. Then release the pressure via the pressure relief valve.
Use the recommended fuel only. Never try to experiment with another fuel.
Before starting the heater fill it completely with water.
Flush your tank at least once a year. To flush it, drain the water in the tank and pump fresh water in the tank for five minutes.
Warranty
The company gives two years warranty from the date of purchase. The company will replace or repair any defective part, but you will have to give the labor charges.
Endnote
We have discussed everything in detail just as Atwood water heater manual. This will help you to take care of your heater. In this Atwood water heater manual, we have included the important aspects that you need to know. If you are unaware of the procedure, it is better to call an expert. During travel close your propane water heater, you can switch to electric mode if your heater has an electric model. Take the precautions and warnings carefully. Check heatercamp For Latest Update
Atwood Mpd 93756 Manual
I am Christopher J. Crown, Ph.D. in Electronic, Electrical and Systems Engineering from the University of Birmingham, United Kingdom.
Currently, I am working as an Executive Researcher on Home Improvement & Outdoor Appliance in a Multinational American Company. For the last decade, I have been working to develop the ECO-friendly modern home thermal system. I Gathered many memories working with the manufacturing team of the world’s best Philips, Sony & LG appliance companies.
Atwood Mpd-91043 Manual
I like sharing my Experience by writing Blogs in my free time, and it’s a pleasure to me. You may reach out to me anytime to ask any questions. I will love to reply to you.