A.O. Smith GWV - 150 Service Manual

V120150200WATER PRODUCTSCOMPANYA DIVISION OF A. O. SMITH CORPORATIONWATER PRODUCTSCOMPANYA DIVISION OF A. O. SMITH CORPORATIONInstallationUser andSer

Introduction10 Instruction manual GWV1gisFurthermore, the installation must comply with the manufacturer's instructions.NoteLater amendments and/

Instruction manual GWV 100

Instruction manual GWV 101IndexAambient temperature 20appliancedisplaying history 69displaying selection 70Cconnectair supply 29cold water side 26, 28

0307 971 4.0 UKIndexInstruction manual GWV

Instruction manual GWV 11gis1.7 Overview of this documentThe table provides an overview of the contents of this document.Contents of this documentChap

Introduction12 Instruction manual GWV1gis

Instruction manual GWV 13gis2 Working principle of the appliance2.1 IntroductionTopics covered in this chapter:• General working principle of the appl

Working principle of the appliance14 Instruction manual GWV2gisCut-away view of the applianceIMD-0500 R18765432201911311121093130293328273222211718 16

Instruction manual GWV 15gisIn this appliance, the cold water enters the bottom of the storage tank through the cold water inlet (24). The system pump

Working principle of the appliance16 Instruction manual GWV2gis2.4 Protection for the appliance2.4.1 IntroductionThe electronic controller monitors th

Instruction manual GWV 17gisPressure measurements are made at the air distribution plate (high pressure) and in a Venturi in the burners (low pressur

Working principle of the appliance18 Instruction manual GWV2gis2.5 Safety of the instal-lationAs well as the standard safeties in the appliance (2.4 &

Instruction manual GWV 19is3 InstallationWarningInstallation work should be carried out by an approved installation engineer in compliance with the ge

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Installation20 Instruction manual GWV3is3.3 Environmental conditionsCautionAn open appliance may not be used in rooms where chemical substances are st

Instruction manual GWV 21is3.3.3 Water compositionThe appliance is intended for heating drinking water. The drinking water must comply with the regula

Installation22 Instruction manual GWV3is3.4 Technical specifica-tionsCheck the dimensions (3.4.1 "Dimensions of the appliance"), the gas dat

Instruction manual GWV 23isDimensions (all measurements in mm unless otherwise indicated)3.4.2 General and electrical specificationsChimney data1) Sta

Installation24 Instruction manual GWV3isContact ratingsOperating pressure3.4.3 Gas dataGas dataUnit GWV 120 GWV 150 GWV 200Electrical power consumptio

Instruction manual GWV 25is3.5 Installation diagramThis figure shows the installation diagram. This diagram is used in the sections in which the actua

Installation26 Instruction manual GWV3is3.6 Water connections, VentedWarningThe installation should be carried out by an authorised installation engin

Instruction manual GWV 27isDistance XDistance X• 0 < X < 2 metres, rev setting 1• 2 < X < 4 metres, rev setting 2• 4 < X < 6 metres,

Installation28 Instruction manual GWV3is6. Put the cap back on the adjuster unit.7. Insert the adjuster unit back in the pump.8. Fit the cap back on t

Instruction manual GWV 29is3.8 Gas connectionWarningThe installation should be carried out by an authorised installation engineer, in compliance with

Instruction manual GWV 3gisRead this manual carefullyWarningRead this manual carefully before starting up the water heater. Failure to read this manua

Installation30 Instruction manual GWV3isC13: appliance with wall conduitC33: appliance with roof conduitNoteMake sure that the chimney discharges into

Instruction manual GWV 31is3.9.3 Parallel connectionsThe air supply duct and flue gas outlet duct for the GWV 120, 150 and 200 exit the appliance sepa

Installation32 Instruction manual GWV3isSpecifications for transition piece and concentric wall flue terminal (C13)Specifications for transition piece

Instruction manual GWV 33isSpecification of condensation outlet for uninsulated lengths greater than 8 metres and no more than 20 metres3.10 Electrica

Installation34 Instruction manual GWV3isConnector blockAs part of the preparations, you should first remove the protective plate from the electrical s

Instruction manual GWV 35isElectrical connector block3.10.3 Connecting the mains voltageThe appliance is supplied without a power cable and isolator.N

Installation36 Instruction manual GWV3is4. If you do not need to make any more connections:- Fit the protector plate onto the electrical connector blo

Instruction manual GWV 37isGas control3.11.1 PreparationTo check the supply pressure and burner pressure, proceed as follows:1. Isolate (10.3 "Is

Installation38 Instruction manual GWV3isThe display will now show INTERNAL CHECK for about 10 seconds and go to the main menu. 7. Activate the "O

Instruction manual GWV 39is3. Cover the opening of the adjusting screw and check the burner pressure against the value given in the gas table (3.4.3 &

4 Instruction manual GWVgis

Installation40 Instruction manual GWV3is

Instruction manual GWV 41is4 Conversion to a different gas categoryCautionThe conversion may only by carried out by an authorised installation enginee

Conversion to a different gas category42 Instruction manual GWV4is

Instruction manual GWV 43gis5 Filling5.1 Installation diagramThis figure shows the installation diagram. This diagram is used in the sections in which

Filling44 Instruction manual GWV5gis5.2 Filling unvented installationsTo fill the appliance, proceed as follows:1. Open the stop valve (11) in the hot

Instruction manual GWV 45gis9. The appliance is now under water supply pressure. There should be no water coming out of the expansion valve (15) or ou

Filling46 Instruction manual GWV5gis

Instruction manual GWV 47gis6 Draining6.1 Installation diagramThis figure shows the installation diagram. This diagram is used in the sections in whic

Draining48 Instruction manual GWV6gis6.2 Draining unvented installationsSome service activities require the appliance to be drained. The procedure is

Instruction manual GWV 49gis5. Switch the appliance OFF (position 0) using the ON/OFF switch on the control panel.6. Isolate the water heater from th

Instruction manual GWV 5Table of contents1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 91.1 About

Draining50 Instruction manual GWV6gis9. Close the stop valve (4) between the water tank and the cold water inlet (A).10. Open the drain valve (9).11.

Instruction manual GWV 51gis7 The control panel7.1 IntroductionTopics covered in this chapter:• Operation;• Meaning of icons;• Electronic controller O

The control panel52 Instruction manual GWV7gisThe ^ and È indicate that you can scroll up and/or down. Use the and buttons to scroll.The cursor » p

Instruction manual GWV 53gis8 Status of the appliance8.1 IntroductionTopics covered in this chapter, in sequence:• Operating modes• Error conditions•

Status of the appliance54 Instruction manual GWV8gisIn all modes, the temperature may at any moment drop below the desired temperature. The appliance

Instruction manual GWV 55gis9 Starting and running9.1 IntroductionTopics covered in this chapter, in sequence:• Starting and running.• The appliance&a

Starting and running56 Instruction manual GWV9gisOnce the appliance starts, it will run through the following steps:1. The water temperature drops bel

Instruction manual GWV 57gis10. When the water is up to temperature, the heat demand drops off and the post-purge starts. This lasts about 25 seconds.

Starting and running58 Instruction manual GWV9gis

Instruction manual GWV 59gis10 Shutting down10.1 IntroductionThis chapter describes:• Shutting the installation down for a brief period ("OFF mod

Table of contents6 Instruction manual GWV8.2 Operating modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53

Shutting down60 Instruction manual GWV10gis

Instruction manual GWV 61gis11 Main menu11.1 IntroductionThe MENU is reached by pressing the button of the electronic controller.The main menu compr

Main menu62 Instruction manual GWV11gis• Confirm with .After confirming, the appliance enters "ON mode".NoteIf the temperature setting is h

Instruction manual GWV 63gisThe display shows the menu for the week program (see figure below). With the default setting, the program switches on and

Main menu64 Instruction manual GWV11gis11.7.4 Week program: setting the program-controlled pump1. If required, a pump can be controlled during the per

Instruction manual GWV 65gis11.9 Deleting times from a week programAll switch-on/off times are shown sequentially in the display. Assume that the swit

Main menu66 Instruction manual GWV11gis11.11 Programming an extra period1. Call up the menu for entering an extra period via:2. : EXTRA PERIODConfirm

Instruction manual GWV 67gis11.12 SettingsUsing the SETTINGS option, you can adjust certain settings and read certain appliance data:• Adjustable sett

Main menu68 Instruction manual GWV11gisConfirm the minute setting with The time has been set.NoteThe appliance takes no account of summer time.11.12.3

Instruction manual GWV 69is12 Service program12.1 IntroductionThe service program is used by the installation engineer or service and maintenance engi

Instruction manual GWV 715 Performing maintenance - - - - - - - - - - - - - - - - - - - - 8915.1 Introduction - - - - - -

Service program70 Instruction manual GWV12is12.5 Displaying the appliance selectionTo display the appliance selection, use:•: SELECT APPLIANCEThe appl

Instruction manual GWV 71isThe appliance switches from partial load to full load if the temperature difference between the water in the storage tank (

Service program72 Instruction manual GWV12is

Instruction manual GWV 73gis13 Troubleshooting13.1 IntroductionA distinction is made between:• General errorsGeneral errors are not reported on the di

isInstruction manual GWV 7413.2 Troubleshooting table for general errorsWarningMaintenance may only be performed by a qualified service and maintenanc

isInstruction manual GWV 75Features Cause Measures to take CommentExplosive ignition Incorrect supply pressure and/or burner pressureSet the correct s

isInstruction manual GWV 7613.3 Troubleshooting table for displayed errorsDisplayed errorsCode + description Cause Measures to take CommentS01 (blocki

isInstruction manual GWV 77Code + description Cause Measures to take CommentS11 (blocking error)Short-circuit for temperature sensor T1, inlet to heat

isInstruction manual GWV 78Code + description Cause Measures to take CommentF01 (blocking error)Defect in power supply circuitLive and neutral connect

isInstruction manual GWV 79Code + description Cause Measures to take CommentF03 (lock out error)The pressure switch fails to work correctlyDamaged wir

Table of contents8 Instruction manual GWV

isInstruction manual GWV 80Code + description Cause Measures to take CommentF04 (lock out error)Three unsuccessful ignition attempts.No gas 1. Open th

isInstruction manual GWV 81Code + description Cause Measures to take CommentF06 (blocking error)Short circuit between flame probe and earthDamaged cab

isInstruction manual GWV 82Code + description Cause Measures to take CommentF10 (lock out error)Restriction on the number of ignition attempts based o

isInstruction manual GWV 83Code + description Cause Measures to take CommentC02 (lock out error)Error message from the appliance controller.Incorrect

isInstruction manual GWV 84Note:(1) Temperature sensor T2 is a '2 in 1' sensor; T2 contains 2 NTCs for maximum thermostat and safety thermos

isInstruction manual GWV 8513.4 WarningsWarningMaintenance may only be performed by a qualified service and maintenance engineer.Note:(1) As a result

Troubleshooting86 Instruction manual GWV13gis

Instruction manual GWV 87is14 Maintenance frequency14.1 IntroductionA service should be carried out at least once a year, both on the water side and o

Maintenance frequency88 Instruction manual GWV14is

Instruction manual GWV 89s15 Performing maintenance15.1 IntroductionCautionMaintenance may only be performed by a qualified service and maintenance en

Instruction manual GWV 9gis1 Introduction1.1 About the applianceThis manual describes how to install, service and use the GWV appliance. This applianc

Performing maintenance90 Instruction manual GWV15s6. Switch the electronic controller ON by setting the On/Off switch to position I.The display will n

Instruction manual GWV 91s15.3 Water-side mainte-nance15.3.1 IntroductionThe following steps must be carried out on the water side:1. Checking the ano

Performing maintenance92 Instruction manual GWV15s15.4 Gas-side mainte-nance15.4.1 IntroductionThe following steps must be carried out on the gas side

Instruction manual GWV 93gis16 Warranty (certificate)To register your warranty, you should complete and return the enclosed warranty card after which

Warranty (certificate)94 Instruction manual GWV16gis16.4 ExclusionsThe warranty set out in articles 1 and 2 will not apply in the event of:a. damage t

Instruction manual GWV 95is17 Appendices17.1 IntroductionThis appendix contains:• Electrical diagram (17.2 "Electrical diagram")• Week progr

Appendices96 Instruction manual GWV17is17.2 Electrical diagramElectrical diagram1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = oran

Instruction manual GWV 97isTERMINAL BLOCK CONNECTIONS:EarthN NeutralL Phase input of controllerL1Phase input of system pumpL2Phase input of program-co

Appendices98 Instruction manual GWV17is

Instruction manual GWV 9917.3 Week program cardYou can cut the week program card out and keep it near the appliance.ExamplePeriod DAY TIME Tset Pump1.