Atwood Mobile Products 10-E Water Heater User Manual
Contents
1. 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 A 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 This water heater is equipped with a tempera ture and pressure relief valve Fia 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 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 materi als 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 provi2. 93221 Main Burner Brdleur principal d 91603 91603 Pilot Assembly Veilleuse 8 v v Exterior Access Door Trappe d acc s ext rieur PILOT RELIGHT RALLUMAGE DE VEILLEUSE 9 93801 93801 Spark Module Module d allumage 10 93804 93804 Electrode Assembly lectrode 13 93803 93803 Wiring Harness Faisceau lectrique SPARK IGNITION ALLUMAGE PAR TINCELLE 1 x x Tank R servoir 2 90960 90960 Flue Box Assembly Boitier du conduit 3 91857 91857 Drain Plug Bouchon de vidange 4 91604 91604 Pressure Temperature Relief Valve Soupape de d charge de type 9 93870 93870 Solenoid Valve lectrovanne 11 91959 91959 Black on Off Switch Interrupteur Marche Arr t noir 91859 91859 White On Off Switch Interrupteur Marche Arr t blanc 12 93851 93851 Circuit Board Circuit imprim 13 93191 93191 Wiring Harness Faisceau lectrique 15 93866 93866 Thermal Cut Off Coupure thermique 16 93868 93868 Spark Probe D tecteur d tincelle 17 91447 91447 Thermostat ECO Thermostat ECO HEAT EXCHANGE CHANGE DE CHALEUR 1 x x Tank R servoir LLL COMBINATION GAS ELECTRIC GAZ LECTRICIT COMBINES 1 x x Tank R servoir NS 92249 92249 Heating Element amp Gasket l ment de chauffe et joint NS 93849 93849 Relay Relais ATWOOD 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
3. 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 recon ditioned 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 workman ship 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 corro sion This warranty includes reasonable labor charges required to replace the complete water heater 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 adjustment of gas pressure cleaning or replacement of burner orifice cleaning or adjustment of burner tube cleaning or adjustment of flue cleaning or adjustment of pilot and thermocouple adjustment of pressure temperature relief valve g replacement of thermal cut off device 4 In the event of
4. Contact nearest gas supplier or qualified Service Technician for repairs f 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 LITERATURE NUMBER MPD 93755 L P GAS WATER HEATER 4 6 10 GALLON Models 4 E amp 10 E eInstallation Operation eMaintenance Effective 11 29 07 WATER HEATER MODEL IDENTIFICATION esee 1 hills eve 1 l idinee 1 SAFETY INFORMATI N Nees orte Ed ero acis evo AE dd 2 4 Water Heater GENERAL INSTALLATION 2 3 Wiring Cutout Chart Pressure Temperature Relief Valve Consumer Safety Warnings 2 2 recesso tae rada 3 How to Operate Your Water Heater 3 4 Maintenance and Care Instructions scceccecceeeececeeseeeeeeeseesaaaeees 4 5 Preventative Maintenance Winterizing Flushing Instructions Pressure Temperature Relief Valve Flushing to Remove Unpleasant Odre 5 FIGURES ncc deci ids 6 7 PART IDENTIFICATION 8 W ter Heater WARRANTY 2e cete eege deed 16 EXPLANATION OF MODEL NUMBER EXAMPLE G C H 6 10 E P Li Electronic Ignition or Pilot Relight Revision NUMBER Heating Element SCREW I
5. ENSION DEPTH Gallon 1 A 1 B 2 4 6 12 5 8 16 1 47 17 5 8 10 15 3 4 16 1 4 20 5 8 MINIMUM CLEARANCE FROM COMBUSTIBLE CONSTRUCTION Sides 0 Top 0 0 Bottom 0 6 Bend all flanges 90 along scored lines Fia 3 A 7 To prevent water leaks caulk thoroughly around opening including bend slots Butyl Tape 1 1 3x1 8 may be substituted for caulking material 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 Fia 3 into clip Fia 3 D b Slide cover Fia 3 E onto hinge pin c Slide hinge pin into cover snapping into clip at same time Fic 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 bo Nor set inlet pressure higher 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 WARNING FIRE AND OR EXPLOSION DO NOT use matches
6. N 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 When 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 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 AN 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 mini mum of 18 gauge wire UL and CSA listed 1 Refer to Wiring Diagram Fic 12 Install remote switch in a conven ient location Position wall plate with letters up Before making con nections turn switch OFF 2 Install wires see ria 10 amp 11 PILOT RELIGHT Fic 12 1 Install unit according to GENERAL INSTALLATION instructions 2 Refer to Wiring Diagram Use 18 gauge wire UL CSA
7. N OR BOLT ON 4 6 10 gallon capacity Engine Heat Exchange Combination Gas and AC Electric Gas PROPANE IF YOUR MODEL NUMBER IS NOT LISTED Older revision numbers may be 3 4 6 7 8 or 9 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 MODEL NUMBER CLARIFICATION TYPE 4 GAL 6 GAL 10 GAL Pilot Ignition G4 7 G6A 7 GC6AA 8P G10 2 GC6AA 8 GH6 7 G10 2P GC10A 2P GC10A 2 Electronic Ignition G6A 8E GCH6A 10E G10 3E X GCH10A 4E GC6AA 10E GH6 8E GC10A 4E GH10 3E Pilot Relight P IN MODEL SEE MODEL CLARIFICATION ABOVE Heat Exchange 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 HEIGHT 6 GALLON 12 5 10 GALLON P 15 5 SHIPPING WT 6 GALLON 25 Ibs 10 GALLON 32 Ibs A CRITICAL INSTALLATION WARNINGS e 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 e 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 wit
8. NG INJURY Turn off water heater and allow time for water to cool before remov ing drain plug to flush tank 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 water hook up source 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 opening to eliminate any obstructions 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 remaining water and the corrosive particles If you use water pressure pump fresh water into the tank with
9. PX i 1120 North Main Street Elkhart IN 46514 PHONE 574 264 2131 FAX 574 206 9713 INTERNET http www atwoodmobile com ENGLISH FRANCAIS et Canada 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 amp 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 AN CAUTION avoid possible and or property damage WARNING avoid possible or death Installation and service must be performed by a qualified Service Technician Service Center OEM or Gas Supplier A WARNING FIRE OR EXPLOSION e f the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life gt 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 ALL persons from vehicle e 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
10. 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 per formed at an authorized Atwood Service Center a list will be pro vided 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 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 This warranty applies only if the unit is installed according to the in stalla tion instructions provided and complies with local and state codes 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 Damage or failure resulting from misuse including failure to seek proper repair service misapplication alterations water damage or freezing are the owner s responsibility 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 t
11. ain Burner Fic 4 1 Loosen air shutter screw 4 A 2 Slide air shutter 4 B to right until some yellow appears in main burner flame 3 Move air shutter 4 B to left until yellow disappears 4 Retighten air shutter screw 4 A Read MAINTENANCE AND CARE INSTRUCTIONS ELECTRONIC IGNITION OPERATION 1 Refer to WIRING DIAGRAM 12 Place remote switch in ON position 2 If remote switch light stays on longer than 15 seconds place remote switch in OFF position and wait 5 minutes 3 Repeat step one 4 For complete shut down and before servicing a Place remote switch in OFF position b Remove red wire from left hand terminal of ECO switch ECO to valve 5 If heater fails to operate due to high water temperature a lockout condition occurs indicator light on After water cools reset switch in OFF position for at least 30 seconds then turn to ON position 6 If a lockout condition persists contact an Atwood Service Center Read MAINTENANCE AND CARE INSTRUCTIONS amp ELECTRONIC IGNITION MAINTENANCE PILOT RELIGHT OPERATION 1 Turn the switch located on the spark module to the ON position 2 Read PILOT OPERATION instructions 3 For complete shut down turn lighting control knob on thermostat and spark module switch to the OFF position Read MAINTENANCE AND CARE INSTRUCTIONS GAS ELECTRIC COMBINATION FUNCTION GAS OPERATION When the gas switch is turned on the unit will make three attempts to light If for any rea
12. ain 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 FOR A ROBERTSHAW UNITROL 7 a Turn lighting control dial 7 B to PILOT position b Depress and hold reset push button 7 A while lighting pilot burner 7 c Allow pilot to burn thirty seconds before releasing reset push button d If pilot does not remain lit repeat operation allowing longer peri od before releasing reset push button e Turn lighting control dial 7 B to ON position f Set temperature control dial 7 C at mid point position between warm and hot g Close access door 4 For complete shut down and before servicing turn gas control knob FIG 7 B to OFF position When water heater is not in use set tem perature control lever White Rogers or dial Robertshaw to low est possible position WARNING SCALDING INJURY Setting temperature control dial at a higher position will produce exces sively hot water The temperature knob or lever is factory adjusted to its lowest dial set ting We recommended the mid point position between warm and hot as noted above This will provide for energy efficient operation and sufficient hot water Valves for reducing point of use temperature by mixing cold and hot water are available Consult a licensed plumber or local plumbing authority 5 To Adjust M
13. control lever White Rogers or dial Robertshaw to lowest possible position This will reduce the effects of low outdoor temperatures on calibration of temperature control mechanism ELECTRONIC IGNITION MAINTENANCE The water heater comes factory equipped with a fused circuit board which will protect the circuit board from wiring shorts If the fuse should activate the water heater will not operate Before replacing the fuse check for a short external to the board Once the short is corrected replace the 2 amp fuse with a mini ATO style fuse Do not install a fuse larger than 3 amps If the fuse is good and the unit is inoperative check for excessively high voltage to the unit more than 14 volts If the previous two steps did not solve the problem check the ther mal cut off Fia 3 1 The thermal cutoff is a device installed in the power supply line This device will shut off electrical power and stop heater operation when activated For example if an obstruction within the flue tube should occur as described in the Preventative Maintenance section the burner flame heat may contact the cutoff resulting in a melting of the fuse element incorporated in the ther mal cutoff In order to restore power and proper operation of the water heater the obstruction must be removed and the thermal cut off must be replaced PREVENTATIVE MAINTENANCE Spiders mud wasps and other insects can build nests in the burner tube This will cause p
14. ded 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 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 re
15. f you use your vehicle frequently or for long periods of time flushing the water heater several times a year will prolong the life of the storage tank RX Cc gt Outlet es Hot Water Cold Water Inlet See 2 STRAIGHT SECTION VIEW From the Pum Ke Ore dr d y el ROBERTSHAW WHITE RODGERS 8 6 GALLON YELLOW BLACK FROM CONTROL TO ELEMENT 9 BLUE FROM W H LOCK OUT LAMP 12 VDC T GAS ORANGE FROM W H ELEC WHITE FROM W H BLUE FROM W H Jumper Wire LOCK OUT LAMP BATTERY BLUE FROM WH 12 VDC WHITE FROM W H ORANGE FROM W H ELECTRIC GREEN FROM WH ORANGE FROM GROUND 12 VDC WH GAS JUMPER WIRE Dotted lines are wired by customer _ 12 WIRING DIAGRAMS Dotted lines are wired by customer _ EM COMBINATION GAS ELECTRIC BLANCA PILOT RELIGHT REMOTE SWITCH ERN ELECTRIC WHT 2 E Spark voc Lu GAS OR1 ES H GRN 6 Module 1 1 2 GREEN OF high voltage Lead I 3 ems Cle REN igh Vol
16. h 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 po modify water heater in any way DO NOT alter water heater for a positive grounding system po NOT HI POT water heater unless electronic ignition system cir cuit board has been disconnected DC Hi Pot 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 amp 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 Accou
17. he exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you 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 lim itation 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 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
18. listed 3 Read PILOT amp PILOT RELIGHT OPERATIONS HEAT EXCHANGE MODELS ric 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 Fic 2 hot water outlet female and cold water inlet female and 3 8 flared LP gas line to the water heater FiG 9 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 0 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 AN CAUTION PRODUCT DAMAGE e Do not lift pull push or misalign main burner tube Fia 3 F 5 Erect side walls and cut opening See chart and Fic 1 Frame with 2x2 lumber or equivalent CUTOUT FIG 1 amp 2 CAPACITY CUT OUT DIM
19. ll combine and produce an unpleasant smell 1 Turn off main water supply Drain the water heater tank and reinstall drain plug Remove the pressure temperature relief valve Mix solu tion of 4 parts white vinegar to two parts water With a funnel care fully pour solution into tank 2 Cycle water heater with the above solution letting it run under nor mal operation 4 5 times 3 Remove the drain plug and thoroughly drain all water from the tank Flush the water heater to remove any sediment You may flush the tank with air pressure or fresh water pressure may be applied through either the inlet or outlet valves on the rear of the tank or through the pressure temperature relief valve coupling located on the front of the unit TO FLUSH TANK WITH AIR PRESSURE Insert your air pressure through the pressure temperature relief valve coupling With the drain valve open the air pressure will force the remaining water out of the unit To flush tank with water pressure Fresh water should be pumped into the tank with either the onboard pump or external water pressure Continue this flushing process for approximately 5 minutes allowing the fresh water to agitate the stagnant water on the bottom of the tank and forcing the deposits through the drain opening 4 Replace drain plug and pressure temperature relief valve 5 Refill tank with fresh water that contains no sulphur The Atwood water heater is designed for use in a recreation vehicle I
20. nt 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 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 Fic 12 Make 120 VAC electrical connec 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 A
21. oor combustion delayed ignition or ignition out side combustion tube Listen for a change in burner sounds or in flame appearance from a hard blue flame to a soft lazy flame or one that is very yellow These are indications of an obstruction in burner tube FIG 4 C Inspect and clean on a regular basis a Remove air shutter screw FIG 4 A and slide air shutter Fia 4 B down burner tube b Run a flexible wire brush down burner tube FiG 4 0 until it is visi ble at end of burner tube c Vacuum burner where it enters combustion tube d Return air shutter to original position and replace screw e The orifice burner tube and shutter must be aligned so that the shutter is not binding on the air tube HOW TO CLEAN PILOT MODELS FIG 6 1 Check main burner orifice and pilot assembly for contamination dirt spider webs etc 2 Clean main burner tube with small brush 3 Main burner adjustment open air shutter 1 4 way 4 Low pilot flame Check for contamination if clean have the pilot orifice replaced HOW TO CLEAN ELECTRONIC IGNITION MODEL Check main burner orifice Clean and adjust main burner Main burner and valve manifold must align with each other Check electrode for cracked porcelain FiG 4 E Check electrode for proper gap 1 8 between electrode and ground If module board functions intermittently remove board and clean terminal block with pencil eraser Fia 3 H WATER HEATER TANK CARE AN WARNING SCALDI
22. son there is no ignition the unit will lockout and the red lockout lamp will illuminate If the thermostat fails the ECO will also lockout the unit requiring resetting Determine the reason for no ignition correct it and reset the gas ignition sequence by turning the switch off then on ELECTRIC OPERATION When the electric switch is turned on the relay at the rear of the unit will close and pass 110vac to the element If the ther mostat were to fail the ECO will open and lockout the system To cor rect check the thermostat to assure good contact with the tank and reset the control by turning the electric switch off then on GAS ELECTRIC OPERATION The unit can be run in both gas and electric modes simultaneously for quick recovery note if the gas fails to ignite the gas mode will lockout but the lockout lamp will not illumi nate since the electric mode is still operational Should you notice slow recovery indicating the gas is not working turn the electric switch off The lamp will then illuminate indicating a lockout has occurred on the gas side Correct the problem and turn the switches back on Read MAINTENANCE AND CARE INSTRUCTIONS MAINTENANCE AND CARE INSTRUCTIONS SERVICE CALLS amp QUESTIONS Location and phone numbers of qualified Service Centers can be found at our website http www atwoodmobile com or call 574 262 2655 to have a Service Center List mailed WARNING FIRE OR EXPLOSION Shut off gas suppl
23. sulting in a complete shut down 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 HOW TO OPERATE YOUR WATER HEATER AN 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 AN 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 FIG 7 2 Turn gas control valve knob ric 7 B to OFF position 3 Wait at least five minutes to allow accumulated gas in burner com partment to escape FOR WHITE RODGERS CONTROL 7 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 rem
24. tage Lea 1 4E a ame RED E to i Eco g Burner Electrode dene SWITCH BLU 3 REMOTE GAS LOCK OUT VALVE mE LAMP BRN 1 B i 110V ELECTRIC GAS PILOT ONLY QS oo FIXED TEMP Te SPARK m CONT T STAT AND SENSE Switch inde THERMAL jee eas gt Hot Lead _ o 1 BLACK e e BLACK CUT OFF WHT 1m i RELAY Ground Lead a S GREEN Ground Fixed Thermostat ELECTRIC 4 HEATING Lead e 02 ANV BLACK FUL Manual Reset 115V ELEMENT High Temperature HOT BLK Element Limit Switch GRN GREEN PART IDENTIFICATION IDENTIFICATION DES PIECES PILOT IGNITION PILOT RELIGHT SPARK IGNITION HEAT EXCHANGE ALLUMAGE DE VEILLEUSE ALLUMAGE PAR ETINCELLES RALLUMAGE DE VEILLEUSE ECHANGE DE CHALEUR GAZ COMBINATION GAS ELECTRIC 8 GAZE BIN 11 ITEM GALLON GALLON REFERENCE 22 LITRES 38 LITRES PILOT IGNITION ALLUMAGE DE VEILLEUSE 1 x x Tank R servoir 2 90960 90960 Flue Box Assembly Boitier du conduit 3 91857 91857 Drain Plug Bouchon de vidange shown on spark ignition Cf allumage lectronique 4 91604 91604 1 2 NPT Pressure Temp Relief Valve Soupape de d charge de type 90028 90028 3 4 NPT Pressure Temp Relief Valve Soupape de d charge 5 91601 91601 Thermostat Thermostat 6 92615
25. the assistance of the on board pump or use external water for 90 sec onds 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 A WARNING EXPLOSION Do not place a valve plug or reducing coupling on outlet part of pressure temperature relief valve 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 vehi cle 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 Due to variations in water quality the Pressure Temperture Relief Valve may have a shorter life and may need replacement within the water heater warranty period If corrosion is detected it will not be covered under warranty A WARNING SCALDING INJURY Turn off
26. water heater before opening pressure temperature relief valve to establish air space Storage water must be cool TO REPLACE THE AIR GAP FOLLOW THESE STEPS 1 Turn off main water supply the pump or water hook up source 2 Let water cool or let run until cool 3 Open the hot water faucet closest to the water heater 4 Pull handle of pressure temperature relief valve straight out and allow water to flow until it stops 5 Allow pressure temperature relief valve to snap shut close faucet turn on water supply 6 Turn on water heater and test At least once a year manually operate pressure temperature relief valve FIG 10 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 at 100 125 PSI 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 or service center FLUSHING TO REMOVE UNPLEASANT ODOR A rotten egg odor hydrogen sulfide may be produced when the electro galvanic action of the cladding material releases hydrogen from the water if sulfur is present in the water supply the two wi
27. y at LP container before disconnecting a gas line Keep control compartment clean and free of gasoline combustible material and flammable liquids and vapors AFTERMARKET WATER HEATING ELEMENT DEVICES A WARNING EXPLOSION BURN INJURY DO NOT alter water heater it will void warranty DO NOT USE Aftermarket heating elements they can lack critical safety controls Use of Aftermarket heating elements can lead to an out of control heating of water tank and a catastrophic wet side explosion The use of any aftermarket heating element devices may also result in damage to components or water heater Atwood s written warranty states failure or damage resulting from any alteration to our water heater is the owner s responsibility Any alteration like the addition of an aftermarket heating element device will void the warranty GENERAL INFORMATION LP and Water system must be turned on Have gas pressure tested periodically Should be set at 11 inches of water column with three appliances running Drain water heater at regular intervals at least one time during the year Drain water heater before storing RV for the winter or when the pos sibility of freezing exists Keep vent and combustion air grill clear of any obstructions Periodically compare flame of main and pilot burners with ria 5 and main burner adjustments in HOW TO OPERATE YOUR WATER HEATER When water heater is not in use set temperature
Download Pdf Manuals
Related Search