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A.O. Smith GWV - 150 - page 1
V 120 150 200 W A T E R P R O D U C T S C O M P A N Y A DIVISION OF A. O. SMITH CORPORA TION W A T E R P R O D U C T S C O M P A N Y A DIVISION OF A. O. SMITH CORPORA TION Installation User and Service Manual Installation User and Service Manual ...
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A.O. Smith GWV - 150 - page 2
www .aosmithinternational.com your installer ...
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A.O. Smith GWV - 150 - page 3
Instruction manual GWV 3 gis Read this manual carefully Wa r ni n g Read this manual carefully before starting up the water heater . Failure to read this manual and to follow the instructions in this manual may lead to accidents, personal injury , and dama ge to the appliance. Copyright © 20 07 A.O. Smith W ater Product s Company All rights reserv ...
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A.O. Smith GWV - 150 - page 4
4 Instruction manual GWV gis ...
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A.O. Smith GWV - 150 - page 5
Instruction manual GWV 5 T able of content s 1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.1 About the appliance - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.2 What to do if you smell gas - - - - - - - - - - - - - - - - - - - - - - - - - 9 1.3 Regulations - - - - - - - - - - - - - - - - - - - - - - - - - - ...
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A.O. Smith GWV - 150 - page 6
Table of contents 6 Instruction manual GWV 8.2 Operating modes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53 8.3 Error conditions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 4 8.4 Service condition - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 54 8.5 Warning - - - - - - - - - - - - - - - - - - - - - - - ...
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A.O. Smith GWV - 150 - page 7
Instruction manual GWV 7 15 Performin g maintenance - - - - - - - - - - - - - - - - - - - - 89 15.1 Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 89 15.2 Preparation for maintenance - - - - - - - - - - - - - - - - - - - - - - - 89 15.3 Water-side maintenance - - - - - - - - - - - - - - - - - - - - - - - - - 91 15.4 Gas- ...
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A.O. Smith GWV - 150 - page 8
Table of contents 8 Instruction manual GWV ...
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A.O. Smith GWV - 150 - page 9
Instruction manual GWV 9 gis 1 Introduction 1.1 About the appliance This manual describes how to install, service and us e the GWV appliance. This appliance is a closed, gas-fire d water heater with a fan in the air supply . The appliance is always supplied together with a storage tank. The possible categories for this appliance are C13, C33, and B ...
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A.O. Smith GWV - 150 - page 10
Introduction 10 Instruction manual GWV 1 gis Furthermore, the installation must c omply with the ma nufacturer's instructions. Note Later amendments and/or additions to all regulations, require ments and guidelines published on or prio r to the moment of installing, will apply to the installation. 1.4 T arget group s The three target groups fo ...
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A.O. Smith GWV - 150 - page 11
Instruction manual GWV 11 gis 1.7 Overview of this document The table provides an o verview of the contents of this document. Contents of this document Chapter T arget grou ps Description Worki ng principle of the appliance This chapter describes how the applian ce functions. Installation This chapter describes the installation acti vity to be comp ...
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A.O. Smith GWV - 150 - page 12
Introduction 12 Instruction manual GWV 1 gis ...
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A.O. Smith GWV - 150 - page 13
Instruction manual GWV 13 gis 2 W orking principle of the appliance 2.1 Introductio n T opics covered in this chapter: • General working princi ple of the appliance ; • The appliance's heating cycl e ; • Protection for the appliance ; • Safety of the inst allation . 2.2 General working principle of the appliance The figure shows a cut- ...
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A.O. Smith GWV - 150 - page 14
Working princi ple of the appliance 14 Instruction manual GWV 2 gis Cut-away view of the appliance IMD- 0500 R1 8 7 6 5 4 3 2 20 19 1 13 11 12 10 9 31 30 29 33 28 27 32 22 21 17 18 16 15 14 24 25 26 23 ...
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A.O. Smith GWV - 150 - page 15
Instruction manual GWV 15 gis In this appliance, the cold water enters the bottom of the st orage tank through the cold water inlet (24). The system pump (22) ensures that th e water flows into the appliance. Th e water is heated by the heat exchanger (20) in the combustion chamber (19). The heated water leaves th e appliance via the return valve ( ...
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A.O. Smith GWV - 150 - page 16
Working princi ple of the appliance 16 Instruction manual GWV 2 gis 2.4 Protection for the applianc e 2.4.1 Introduction The electronic controller monitors the water temp erature and ensures safe combustion . This is a chieved by: • the W ater te mperature protection • the Gas control • the Fan • the Pressure switch • the Flame probe • ...
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A.O. Smith GWV - 150 - page 17
Instruction manual GWV 17 gis Pressure measurements are made at the air distribution plate (high pressure) and in a V enturi in the burners (low pressure). The table shows the trip point per appliance. Note The trip point of the pressure switch is not adjustable. Pressure switch trip points 2.4.6 Flame probe T o ensure that no gas can flow when the ...
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A.O. Smith GWV - 150 - page 18
Working princi ple of the appliance 18 Instruction manual GWV 2 gis 2.5 Safety of the insta l- lation As well as the standard safeties in the appliance (2.4 "Protection for the appliance") , it must also be protected by an inlet combination and a pressure - reducing valve. A P-valve is also used. 2.5.1 Unvented inst allation With unvented ...
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A.O. Smith GWV - 150 - page 19
Instruction manual GWV 19 is 3 Inst allation Wa r ni n g Installation work should be carried o ut by an approved installation engineer in compliance with the general and local reg ulations imposed by the gas, water and power supply companies and the fire service. The appliance may only be installed in a room that complies with the requirements stat ...
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A.O. Smith GWV - 150 - page 20
Installation 20 Instruction manual GWV 3 is 3.3 Environment al conditions Caution An open appliance may not be used in rooms where chemical su bstances are stored or used due to the risk of ex plosion and corrosion of the appliance. Some propellants, bleaching agents and degreasing age nts etc. disperse vapours that are explosive a nd/or cause acce ...
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A.O. Smith GWV - 150 - page 21
Instruction manual GWV 21 is 3.3.3 Water composition The appliance is intended for heating drinkin g water . The drinking water must comply with the regulations governing drin king water for human consumption. The table gives an overview of the specifications. Water specifications Note If the water specifications deviate from those stated in the ta ...
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A.O. Smith GWV - 150 - page 22
Installation 22 Instruction manual GWV 3 is 3.4 T echnical spec ifica- tions Check the dimension s (3.4.1 "Dimensions of the appliance") , the gas data (3.4.3 "Gas data") and other specifications (3.4 .2 "General and electrical specifications") of the ap pliance. 3.4.1 Dimensions of the appliance Plan and elevation of ...
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A.O. Smith GWV - 150 - page 23
Instruction manual GWV 23 is Dimensions (all measurements in mm unless otherwise indicated) 3.4.2 Ge neral and el ectrical specif ications Chimney data 1) St ated lengths and bends apply for both flue gas removal and air supply T ap capacity Size Description GWV 120 GWV 150 GWV 200 A Overall height 835 835 835 B Height of pump connection + heat exc ...
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A.O. Smith GWV - 150 - page 24
Installation 24 Instruction manual GWV 3 is Cont act rating s Operating pressure 3.4.3 Gas dat a Gas data Unit GWV 120 GWV 150 GWV 200 Electrical power consumption W 200 210 350 Supply voltage V AC 230 (+10 -15%) - 50Hz Unit GWV 120 GWV 150 GWV 200 Operating pressure bar 8 8 8 Description II 2H3P Unit GWV 120 GWV 150 GWV 200 Gas category 2H: G20 - ...
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A.O. Smith GWV - 150 - page 25
Instruction manual GWV 25 is 3.5 Inst allation diagram This figure shows the installation diagram. This diagra m is used in the sections in which the actual connection process is descri bed. Installation diagram Unvented Ve n t e d A 1 5 15 16 4 4 14 14 1 4 6 5 4 23 3 11 11 11 D 10 9 9 12 B C IMD- 0 4 86 R2 4 4 14 14 14 6 5 4 23 3 11 11 11 D 10 9 9 ...
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A.O. Smith GWV - 150 - page 26
Installation 26 Instruction manual GWV 3 is 3.6 Water connec tions, Ve n t e d Wa r ni n g The installation should be carrie d out by an authorised installation engineer , in compliance with general and loca l regulations (1.3 "Regulatio ns") . 3.6.1 Cold water side See (A) in the installation diagram (3.5 "Installation diagram" ...
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A.O. Smith GWV - 150 - page 27
Instruction manual GWV 27 is Distance X Distance X • 0 < X < 2 metres, rev setting 1 • 2 < X < 4 metres, rev setting 2 • 4 < X < 6 metres, rev setting 3 Y ou set the revs using the pump's adjuster unit. Proceed as follows: 1. Unscrew the pump's cap. 2. The pump's adjuster unit can be seen. 3. T ake the adjuste ...
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A.O. Smith GWV - 150 - page 28
Installation 28 Instruction manual GWV 3 is 6. Put the cap back on the adjuster unit. 7. Insert the adjuster unit back in the pump. 8. Fit the cap back on the pump. 3.7 Water connec tions, Unvented Wa r ni n g The installation should be carrie d out by an authorised installation engineer , in compliance with general and loca l regulations (1.3 &quo ...
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A.O. Smith GWV - 150 - page 29
Instruction manual GWV 29 is 3.8 Gas connect ion War n i n g The installation should be carried out by an authorised installation engineer , in compliance with general and local regulatio ns (1.3 "Regulations") . Caution Make sure that the dia meter and length of the gas supply pipe are large enough to supply sufficient capacity to the ap ...
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A.O. Smith GWV - 150 - page 30
Installation 30 Instruction manual GWV 3 is C13: appliance with wall conduit C33: appliance with roof conduit Note Make sure that the chimney discharges into an are a where this is permitted for this category of appliance. B A IMD- 0503 R 0 A C B IMD- 0509 R0 ...
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A.O. Smith GWV - 150 - page 31
Instruction manual GWV 31 is 3.9.3 Para llel connection s The air supply duct an d flue gas outlet duct for the GWV 120, 150 and 200 exit the appliance separately . They must be connected (3.9.2 "Requirements for flue gas discharge materials") to the concentric wall condui t or roof conduit using a transition piece. The following requi re ...
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A.O. Smith GWV - 150 - page 32
Installation 32 Instruction manual GWV 3 is Specifications for transition piece and concen tric wall flue terminal (C13) Specifications for transition piece and concentric roof condu it (C33) Subject Desc ription W all flue terminal set: • 1x wall flue terminal (incl. transition piece) • 1x wall plate • 1x clampin g ring • 2x pip e, 500mm ? ...
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A.O. Smith GWV - 150 - page 33
Instruction manual GWV 33 is Specification of condensation outlet for uninsulate d lengths greater than 8 metres and no more than 20 metres 3.10 Electrical connection Wa r ni n g The installation should be carried out by an authorised installation engineer , in compliance with general and local regulatio ns (1.3 "Regulations") . 3.10.1 In ...
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A.O. Smith GWV - 150 - page 34
Installation 34 Instruction manual GWV 3 is Connector block As part of the prep aration s, you should first remove the protective plate from the electrical section. 1. Loosen the 2 screws (A) of the electric al section, and remove the protective cap (B) from the electrical section. The connector block (C) is now visible. Note Consult the table for ...
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A.O. Smith GWV - 150 - page 35
Instruction manual GWV 35 is Electrical connector block 3.10.3 Connecting th e mains volt age The appliance is supplied with out a power cable and isolator . Note T o provide the appliance with vo ltage, the appliance must be permanently connected to the mains voltage. A double-pole isol ator with a contact gap of at least 3 mm must be fitted betwe ...
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A.O. Smith GWV - 150 - page 36
Installation 36 Instruction manual GWV 3 is 4. If you do not need to make any more connectio ns: - Fit the protector pl ate onto the electrical connector block. 3.10.5 Connecting an exter nal on/off switch There is an option for connecting an external ON/OFF switch. In the OFF position, the p rogrammed operating state is active. In the ON position, ...
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A.O. Smith GWV - 150 - page 37
Instruction manual GWV 37 is Gas control 3.1 1.1 Prep aration T o check the supply pressure and burner pressure, proceed as fo llows: 1. Isolate (10.3 "Iso lating the appliance from the mains") the appliance fro m the power supply . 2. Undo the screws of the front cover . 3.1 1.2 Procedure for check ing pressures 1. There are two test nip ...
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A.O. Smith GWV - 150 - page 38
Installation 38 Instruction manual GWV 3 is The display will now show INTERNAL CHECK for about 10 seconds and go to the main menu. 7. Activate the "ON mode" by going through the following step s: - Press the blue arrow once ( ) to position the cursor in front of ON and press . The display shown here will appea r . - Confirm the START OPER ...
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A.O. Smith GWV - 150 - page 39
Instruction manual GWV 39 is 3. Cover the opening of the adjusti ng screw and check the burner pressure against the value given in the gas table (3.4.3 "Gas data ") . 4. If the pressure is not set correctly , repeat the preceding steps until the correct pressure is attained. 5. Fit the c ap (4) back on the bu rner pressure regu lator . 6. ...
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A.O. Smith GWV - 150 - page 40
Installation 40 Instruction manual GWV 3 is ...
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A.O. Smith GWV - 150 - page 41
Instruction manual GWV 41 is 4 Conversion to a different gas category Caution The conversion may only by carried out by an authorised installation engineer . If the appliance must operate on a family of gases (LP gas or natural gas) or other gas category than th at for which the appliance has been set at the factory , the appliance will have be ada ...
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A.O. Smith GWV - 150 - page 42
Conversion to a differen t gas category 42 Instruction manual GWV 4 is ...
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A.O. Smith GWV - 150 - page 43
Instruction manual GWV 43 gis 5 Filling 5.1 Inst allation diagram This figure shows the installation diagram. This diagra m is used in the sections in which the actual connection process is descri bed. Installation diagram Unvented A 1 5 15 16 4 4 14 14 1 4 6 5 4 23 3 11 11 11 D 10 9 9 12 B C IMD- 0 4 86 R2 ...
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A.O. Smith GWV - 150 - page 44
Filling 44 Instruction manual GWV 5 gis 5.2 Filling unvented inst allations T o fill the applianc e, proceed as follows: 1. Open the stop valve (1 1) in the hot wate r pipe and, if present, the sto p valves (4) for the circulation pump (6). 2. Close the drain valve (9). 3. Open the nearest hot wate r draw-off point (14). 4. Open the stop valves (1 ...
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A.O. Smith GWV - 150 - page 45
Instruction manual GWV 45 gis 9. The appliance is now under water supply pr essure. There should be no water coming out of the expansion valve (15) or out of the P-valve (23). If there is, the cause might be: - The water su pply pressure is greater tha n the specified 8 bar . Rectify this by fitting a pressure reducing valve (1). - The expansion va ...
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A.O. Smith GWV - 150 - page 46
Filling 46 Instruction manual GWV 5 gis ...
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A.O. Smith GWV - 150 - page 47
Instruction manual GWV 47 gis 6 Draining 6.1 Inst allation diagram This figure shows the installation diagram. This diagra m is used in the sections in which the actual connection process is descri bed. Installation diagram Unvented A 1 5 15 16 4 4 14 14 1 4 6 5 4 23 3 11 11 11 D 10 9 9 12 B C IMD- 0 4 86 R2 ...
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A.O. Smith GWV - 150 - page 48
Draining 48 Instruction manual GWV 6 gis 6.2 Draining unvented inst allations Some service activities require the applia nce to be draine d. The procedure is as follows: 1. Activate the MENU with . 2. Position the cu rsor in front of OFF . 3. Confirm OFF with . 4. W ai t until the fan has stopped. The symbol is then dimmed. Caution Failure to wait ...
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A.O. Smith GWV - 150 - page 49
Instruction manual GWV 49 gis 5. Switch the appliance OFF (position 0) using t he ON/OFF switch on the control panel. 6. Isolate the water heater from the power supply by putting the isolator between the appliance and th e mains power supply to position 0. 7. Shut off the gas supply (10). 8. Close the stop valve (1 1) in the hot water pipe. 9. Clos ...
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A.O. Smith GWV - 150 - page 50
Draining 50 Instruction manual GWV 6 gis 9. Close the stop valve (4) between the wa ter tank and the cold water inlet (A). 10. Open the drain valve (9). 1 1. Bleed the appliance (o r installation) so that it drains completely . ...
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A.O. Smith GWV - 150 - page 51
Instruction manual GWV 51 gis 7 The control p anel 7.1 Introductio n T opics covered in this chapter: • Operation ; • Meaning of ico ns ; • Electronic controller ON/OFF switch ; • Navigation buttons ; • PC connection . 7.2 Operation The entire appliance is c ontrolled and monitored by the ThermoControl (the electronic control).The figure ...
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A.O. Smith GWV - 150 - page 52
The control pane l 52 Instruction manual GWV 7 gis The ^ and È indicate that you can scroll up and/or down. Use the and buttons to scroll. The cursor » points to the option to be activated. In the display as shown in the figure, you can scroll th rough the main menu. The main menu comprises: OFF , ON , WEEK PROGRAM , EXTRA PERIOD and SETTINGS . Y ...
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A.O. Smith GWV - 150 - page 53
Instruction manual GWV 53 gis 8 S t atus of the appliance 8.1 Introductio n T opics covered in this chapter , in sequence: • Operating modes • Error conditions • Service con dition • Wa r n in g 8.2 Operating modes When running, the applian ce has four basic operating modes, namely: • OFF • ON • PROG • EXTRA 8.2.1 OFF In this mode, ...
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A.O. Smith GWV - 150 - page 54
Status of the app liance 54 Instruction manual GWV 8 gis In all modes, the temperature ma y at any moment drop below the desired temp erature. The appliance then enters a heating cycle. This heati ng cycle is identical (2.3 "The appliance's hea ting cycle") for all basic operating modes. Note Setting and programming the basic operati ...
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A.O. Smith GWV - 150 - page 55
Instruction manual GWV 55 gis 9 S t arting and running 9.1 Introductio n T opics covered in this chapter , in sequence: • S tarting and running . • The appliance' s heating cycle . 9.2 St arting and runnin g S tart the appliance as follows: 1. Fill the appli ance (5 "Filling") . 2. Open (3.5 "Installation diagram") the ...
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A.O. Smith GWV - 150 - page 56
Starting and ru nning 56 Instruction manual GWV 9 gis Once the appliance st arts, it will run through the following steps: 1. The water temperature drops below the set temperature of (for example) 65 °C. The electronic controller detects a dema nd and start s the heating cycle. - The icon is activated. - The message HEAT DEMAND appears. 2. Followi ...
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A.O. Smith GWV - 150 - page 57
Instruction manual GWV 57 gis 10. When the water is up to temperature, the heat demand drop s off and the post -purge st arts. Th is lasts about 25 seconds. - The , and icon s are remove d. - The icon is acti vated. - The message POST PURGE appears. 1 1. Followin g the post-purge, the fan stops and the pressure switch opens: - The and icons are rem ...
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A.O. Smith GWV - 150 - page 58
Starting and ru nning 58 Instruction manual GWV 9 gis ...
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A.O. Smith GWV - 150 - page 59
Instruction manual GWV 59 gis 10 Shutting down 10.1 Introductio n This chapter describes: • Shutting the installation down for a brief period ("OFF mode") ; • Isolating the applian ce from the mains ; • Shutting the appliance and sto rage tank down for a long period . 10.2 Shut ting the inst allation down for a brief period ("O ...
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A.O. Smith GWV - 150 - page 60
Shutting down 60 Instruction manual GWV 10 gis ...
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A.O. Smith GWV - 150 - page 61
Instruction manual GWV 61 gis 1 1 Main menu 1 1.1 Introdu ction The MENU is reached by pre ssing the button of the electronic controller . The main menu comprises: • OFF Select this option if you wish to shut the appliance down (10 "Shutting down") for a brief period, but do not wi sh to dr ain it. In this mode, the frost protection is ...
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A.O. Smith GWV - 150 - page 62
Main menu 62 Instruction manual GWV 11 gis • Con firm with .Af ter confirming, the appliance enters "ON mode". Note If the temperature setting is higher than the current water temperature, it is po ssible that the ap pliance will not immediately start heati ng. T o preven t excessively frequent switching on and off, there is a heating m ...
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A.O. Smith GWV - 150 - page 63
Instruction manual GWV 63 gis The display shows the menu for the week program (see figure below). With the de fault setting, the program switches on and off every day at 00:00 and 23:59 respectively , the water temperature is 65ºC and the pump is switched on ( P ). Example As an example, we wi ll set the switch-on time for Sunday to 08:15 and the ...
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A.O. Smith GWV - 150 - page 64
Main menu 64 Instruction manual GWV 11 gis 1 1.7.4 Week program: sett ing the program- controlled pump 1. If required, a pump can be controlled during the period. Use and to set PUMP ON The pump ensures a regular circulatio n of hot water in the ho t water pipes. Y o u can skip this step if you there is no pump in your hot water circuit. Confirm wi ...
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A.O. Smith GWV - 150 - page 65
Instruction manual GWV 65 gis 1 1.9 Deleting times from a week program All switch-on/off times are shown sequentially in the display . Assume that the switch -on/off times for the appliance are programmed as in th e figure. T o delete a period, proceed as follows: The display shows the menu for the week program. 1. Scroll to DELETE . Confirm with . ...
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A.O. Smith GWV - 150 - page 66
Main menu 66 Instruction manual GWV 11 gis 1 1.1 1 Programming an extra period 1. Call up the menu fo r entering an extra period via: 2. : EXTRA PERIOD Confirm with . The display show the settin gs for the extra period. 1 1.1 1.1 Setting the switch-on time 1. Use and to set the day . In the example, this is SU . Confirm with . The cursor moves to t ...
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A.O. Smith GWV - 150 - page 67
Instruction manual GWV 67 gis 11 . 1 2 S e t t i n g s Using the SETTINGS option, you can adjust certain settings and read certain appliance data: • Adjustable settings - Languag e of the menu. - Current day of week and time. • Displayable appliance specifications , this category is only relevant to the installation engineer and/o r service and ...
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A.O. Smith GWV - 150 - page 68
Main menu 68 Instruction manual GWV 11 gis Confirm the minute setting with The time has been set. Note The appliance takes no account of summer time. 1 1.12.3 D isplaying ap pliance specific ations Note This category is only re levant to the installation engineer and/or servi ce and maintenance e ngineer . The table shows the correct settings. Brin ...
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A.O. Smith GWV - 150 - page 69
Instruction manual GWV 69 is 12 Service program 12.1 Introductio n The service program i s used by the installation engineer or servi ce and maintenance e ngineer for: • Setting the hysteresis ; • Displaying the error history ; • Displaying the appliance history ; • Displaying the appliance selection ; • Switching the pump on or off ; • ...
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A.O. Smith GWV - 150 - page 70
Service program 70 Instruction manual GWV 12 is 12.5 Displaying the appliance selection T o display the appli ance selection, use: •: SELECT APPLIANCE The appliance number ca n be found on the rating plate. The appliance selection has been correctly preset in the factory . 12.6 Switching the pump on or off If a program-controlled pump is installe ...
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A.O. Smith GWV - 150 - page 71
Instruction manual GWV 71 is The appliance switches from partial load to full load if the temperature difference between the water in the storage tank (T 3 ) and the set point (T set ) minus the negative hysteresis is greater than this stage difference. Conversely , the apparatus switches from full load to partial load if this temperature diff eren ...
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A.O. Smith GWV - 150 - page 72
Service program 72 Instruction manual GWV 12 is ...
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A.O. Smith GWV - 150 - page 73
Instruction manual GWV 73 gis 13 T roubleshooting 13.1 Introductio n A di stinction is made between: • General errors General errors are not reported on the displa y . Ge neral errors are: - Gas smell - Display does not light up - Insufficient or no hot water . - Water leakage - Explosive ignition. The manual include s (13.2 "T roubl eshooti ...
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A.O. Smith GWV - 150 - page 74
is Instruction manual GWV 74 13.2 T roubleshooting t able for general errors Wa r ni n g Maintenance may only be perfo rmed by a qualified service and maintenance engi neer . General erro rs Features Cause Measures to take Comment Gas smell Gas leak Wa r n in g Close the main gas valve immediately . Wa r ni n g Do not operate any switches. Wa r ni ...
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A.O. Smith GWV - 150 - page 75
is Instruction manual GWV 75 Features Cause Measures to take Comment Explosive ig nition Incorrect supply pressure and/or bu rner pressure Set the correct supply pressure and/or burner pressure. (3.1 1 "Checking the supply pressure and burner pressure") If ignition is not improved, consult your installation engineer . Contaminated burner ...
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A.O. Smith GWV - 150 - page 76
is Instruction manual GWV 76 13.3 T roubleshooting t able for displayed errors Displayed errors Code + descrip tion Cause Measures to take Comment S01 (blocking error) Open circuit for temperature sensor T 1 , inlet to heat exchanger Sensor is not (correctly) connected Connect the sensor lead to JP3 See the GWV electrical d iagram (17 "Appendi ...
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A.O. Smith GWV - 150 - page 77
is Instruction manual GWV 77 Code + descrip tion Cause Measures to take Comment S1 1 (blocking error) Short-circuit for temperature sensor T 1 , inlet to heat exchanger Short circuit in sensor circuit Replace sensor T 1 T o replace the necessary parts, you must contact your installation engineer S12 (blocking error) Circuit for sensor 1 of temperat ...
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A.O. Smith GWV - 150 - page 78
is Instruction manual GWV 78 Code + descrip tion Cause Measures to take Comment F01 (blocking er ror) Defect in power supply circuit Live and neutral connected wrong way round Connect live and neutral correctly (3.10 "El ectrical connection") ; the appliance is phase-sensitive See the GWV electrical diagra m (17 "Appendices") Co ...
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A.O. Smith GWV - 150 - page 79
is Instruction manual GWV 79 Code + descrip tion Cause Measures to take Comment F03 (lock out error) The pressure switch fails to work correctly Damaged wiring/Open circuit 1. Check the wiring betwee n th e pressure switch and the controller 2. If necessary , replace the wiring If the error cannot be resolved or is persistent, contact your installa ...
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A.O. Smith GWV - 150 - page 80
is Instruction manual GWV 80 Code + descrip tion Cause Measures to take Comment F04 (lock out error) Three unsuccessful ignition attempts. No gas 1. Open the main gas valve and/ or the manual gas valve supplying the water heater 2. Check the supply pressure to the gas control 3. If necessary , repair the gas supply T o repair the gas supply , conta ...
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A.O. Smith GWV - 150 - page 81
is Instruction manual GWV 81 Code + descrip tion Cause Measures to take Comment F06 (blocking er ror) Short circuit between flame probe and earth Damaged cable in contact with metal surface. Check the wiring of the flame probe. Replace the wiring if necessary .. If the error persists, contact your inst alla tion engineer . T o replace the necessary ...
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A.O. Smith GWV - 150 - page 82
is Instruction manual GWV 82 Code + descrip tion Cause Measures to take Comment F10 (lock out error) Restriction on the number of ig nition attempts based on pressure switch state changes. Pressure switch not closing 1. Check the running speed of the fan 2. Check th at the hoses are fitted co rrectly to the pressure switch and the ventilator's ...
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A.O. Smith GWV - 150 - page 83
is Instruction manual GWV 83 Code + descrip tion Cause Measures to take Comment C02 (lock out error ) Error message from the appliance controller . Incorrect reference voltage from the AD converter . 1. Reset electronic co ntroller . 2. Check that the frequency of the power supply is compliant (3.4.2 "G eneral and electrical specifications&quo ...
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A.O. Smith GWV - 150 - page 84
is Instruction manual GWV 84 Note: (1) T emperature senso r T 2 is a '2 in 1' sensor; T 2 contains 2 NTCs for maximum thermostat a nd safety thermostat p rotection. (2) The dummy flue gas sensor consists of dummy flue gas sensor 1 and dummy flue gas sensor 2 . Code + descrip tion Cause Measures to take Comment E03 (lock-out error ) Error ...
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A.O. Smith GWV - 150 - page 85
is Instruction manual GWV 85 13.4 W arnings Wa r ni n g Maintenance may only be perfo rmed by a qualified service and maintenance engi neer . Note: (1) As a result of this warning, the appliance will switch to part ial load and remain active in that mode until the warni ng is cleared with RESET and ENTER (2) As a result of this warning, the control ...
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A.O. Smith GWV - 150 - page 86
Troubleshoo ting 86 Instruction manual GWV 13 gis ...
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A.O. Smith GWV - 150 - page 87
Instruction manual GWV 87 is 14 Maintenance frequency 14.1 Introductio n A service should be carried out at lea st once a year , both on the water sid e and on the gas side. Maintenance fre quen cy depends, among other things, on the water quality , the average burning time per day an d the set water temperature. Note Regular maintenance extends th ...
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A.O. Smith GWV - 150 - page 88
Maintenance frequency 88 Instruction manual GWV 14 is ...
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A.O. Smith GWV - 150 - page 89
Instruction manual GWV 89 s 15 Performing maintenance 15.1 Introductio n Cautio n Maintenance may only be performed by a qualified servi ce and maintenance engineer . At each service, the appliance unde rgoes maintenance on both the w ater side and the gas side. The maintena nce must be carried out in the following ord er . 1. Preparation for maint ...
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A.O. Smith GWV - 150 - page 90
Performing maintenance 90 Instruction manual GWV 15 s 6. Switch the electronic controller ON by setting the On/Off switch to position I . The display will now show INTERNAL CHECK for about 10 seconds and go to the main menu. 7. Activate the 'ON mode' by going through the follow ing steps: - Press the blue arrow once ( ) to position the cu ...
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A.O. Smith GWV - 150 - page 91
Instruction manual GWV 91 s 15.3 W ater-side mainte- nance 15.3.1 Introd uction The following steps must be carried out on the water side: 1. Checking the anodes 2. Descaling and cleaning the stora ge tank 15.3.2 Check ing the anodes T i mely replacement of the anodes extend s the service life of the appliance. The appliance's anodes must be r ...
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A.O. Smith GWV - 150 - page 92
Performing maintenance 92 Instruction manual GWV 15 s 15.4 Gas-side mainte- nance 15.4.1 Introduction The following steps must be carried out on the gas side: 1. Clean the burner(s) 2. Clean the injector(s) 3. Cleaning the aluminium strips 15.4.2 Clean the burner(s) 1. Dismantle first the ye llow flexible gas hose, the manifold and then the burner( ...
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A.O. Smith GWV - 150 - page 93
Instruction manual GWV 93 gis 16 W arranty (certificate) T o register your warranty , you shou ld complete and return the enclosed warranty card after which a wa rranty ce rtificate will be sent to you. This certificate gives the owner of a appl iance supplied by A.O. Smith Water Products Company B.V . of V eldhoven, The Netherl ands (hereinafter & ...
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A.O. Smith GWV - 150 - page 94
Warranty (certificate) 94 Instruction manual GWV 16 gis 16.4 Exclusion s The warranty set out in articles 1 an d 2 will not apply in the event of: a. damage to the appliance caused by an external factor; b. misuse, neglect (includ ing frost dama ge), modificati on, incorrect and/or unauthorised use of the applian ce and any attempt to rep ai r leak ...
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A.O. Smith GWV - 150 - page 95
Instruction manual GWV 95 is 17 Appendices 17.1 Introductio n T his appendix contains: • Electrical diagram (17.2 "Electrical diagram") • Week program card ...
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A.O. Smith GWV - 150 - page 96
Appendices 96 Instruction manual GWV 17 is 17.2 Electrical diagram Electrical diagram 1 = brown, 2 = blue, 3 = yellow/green, 4 = black, 5 = white, 6 = orange, 7 = red Q A X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 3 3 3 X J35 JP12 J37 JP6 J36 JP8 X X J39 J29 J34 JP5 JP4 JP3 J21 J19 J20 J3 ...
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A.O. Smith GWV - 150 - page 97
Instruction manual GWV 97 is TERMINAL BLOCK CONNECTIONS: Earth N Neutral L Phase input of controller L 1 Phase input of system pump L 2 Phase input of program-controlled pump COMPONENTS: A Controller B Flame probe C Hot surface igniter D Gas control 1 E Gas control 2 F Display GF a n H External ON mode switch Jn / a K Alarm signal Ln / a M Program- ...
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A.O. Smith GWV - 150 - page 98
Appendices 98 Instruction manual GWV 17 is ...
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A.O. Smith GWV - 150 - page 99
Instruction manual GWV 99 17.3 Week program card Y ou can cut the week prog ram card out and keep it near the appliance. Example Period DA Y TIME T set Pump 1. ON ....°C ON / OFF OFF 2. ON ....°C ON / OFF OFF 3. ON ....°C ON / OFF OFF 4. ON ....°C ON / OFF OFF 5. ON ....°C ON / OFF OFF 6. ON ....°C ON / OFF OFF 7. ON ....°C ON / OFF OFF 8. O ...
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A.O. Smith GWV - 150 - page 100
Instruction manual GWV 100 ...
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A.O. Smith GWV - 150 - page 101
Instruction manual GWV 101 Index A ambient temperature 20 appliance displaying history 69 displaying selection 70 C connect air supply 29 cold water side 26, 28 electrical 33 hot water side 28 connecting cold water side 26, 28 connecting flue gas discharge 29 connecting hot water side 28 controls 61 conversion to a different gas category 41 D displ ...
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A.O. Smith GWV - 150 - page 102
0307 971 4.0 UK Index Instruction manual GWV ...
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