Bosch GWH 1000 manual

M O DE L G W H 1 0 0 0 P I N D OOR MOD E L Stand ing pilot Suit able fo r heat ing pot abl e wat er only Not app roved for spac e heat ing or preheat ed wa ter applic at ions MODE L GWH 100 0 P NG - Na tural Gas MODE L GWH 100 0 P LP - Liqu efied Pet roleum (LP ) Gas 6 720 608 124 US (06.05) AL Warn ing: If the in formation in this m anual is n ot [...]

6 720 608 124 2 Index Index 1 Warning 2 2 Appliance d etails 3 2.1 GWH 1000 P specifications (Technic al data) 3 2.2 Unpacking the GWH 1000 P heater 4 2.3 General rules to follow for safe opera tion 4 2.4 Dimensions an d installation clearances 5 3 Installation instructions 6 3.1 Introduction 6 3.2 Proper location for installing your heat er 6 3.3 [...]

6 720 608 124 Appliance detai ls 3 2 Applian ce details 2.1 GWH 1000 P specifications (Technical data) Approved in US/Canada Capacity GWH 1000 P : 2.6 GPM Maximum out put GWH 1000 P : 58 400 Btu/hr Maximum in put GWH 1000 P : 74 900 Btu/hr Efficiency in % Recovery effic iency 78% Min. Output GWH 1000 P : 23 906 Btu/hr Gas Requi rement Gas connecti [...]

6 720 608 124 4 Appliance de tails 2.2 Unpacking the GWH 1000 P heater This heater is p acked securely. Before installing the unit, be certain you have the correct heater f or you r type of G as - Prop ane or Natural Gas. Identifi cation labels are found on the shipping box, and on the rating plate which is located on the right side panel of the co[...]

6 720 608 124 Appliance detai ls 5 2.4 Dimensions and installation clearances Fig. 3 Dimensions in Inches and (mm) 4 Heat exchanger 5 Burn er 10 Tem perature co ntrol 11 Wa ter valve 20 G as connection 26 O utput control 36 Fro nt cover 37 Hol e for fixing t o wall 38 Exh aust pipe to c onnector 39 D raft diverter w ith flue gas m onitor 40 G as va[...]

6 720 60 8 124 6 Installation instructions 3 Installat ion instruc tions 3.1 Introduction Please foll ow these i nstructions. Failu re to follow instructions m ay result in: B Damage or i njury. B Improper operation. B Loss of warra nty. If you are unable to perform the tasks requ ired to install this hea ter properly, please contact a locally lice[...]

6 720 60 8 124 Installation instructions 7 3.4 Mounting Heater Remove cov er and inspect. B Remove the temp erature control. B Remove the ou ter case by pulling it fo rwards and then lifting upwar ds. B Ensure that the flue terminal is clear. B After inspection , replace front cover. Install inc andescent particle tray. B Install incandenscent part[...]

6 720 60 8 124 8 Installation instructions 3.5 Combustion air requirements The Aq uaStar water heater holds cold water in its copper heat exchanger and water valve when n ot in u se. Because of this, any cold air th at comes down through the unit's ve nt pipe is capable of freezing these components. Thi s Ins tallation Manual specifies the min[...]

6 720 60 8 124 Installation instructions 9 3.6 Venting B Minimum vent p ipe diameter: 4 inches B Minimum vertic al vent height: 6 feet, wi th no elbows B Establish 12 in ch rise before any elbow The heater must be vente d to t he outside following all local o rdinances and specificat ions for installing a gas appliance vent or ch imney. The heater [...]

6 720 60 8 124 10 Installation instructions Masonry chim ney Masonry chimneys sh all be built and installed in accordance with NFPS 211 or local codes. A minimum 4" d iameter gas vent p ipe (metal double wall T ype B), or an approved clay flue liner or a listed chim ney l ining system must be u sed when venting into a naturally drafting, inter[...]

6 720 60 8 124 Installation instructions 11 3.7 Gas piping & connections Before connecting the gas suppl y, check the rat ing plate on the r ight si de of the heater to be sure that t he heater is rated for the same gas to whic h i t wil l be connected. In the United States: The installation must conform with local codes or, in th e absence of [...]

6 720 60 8 124 12 Installation instructions FOR NA TU R AL GAS Maximum Cap acity of pipe in Cubic Fee t of Gas per Hour for Ga s Pressure of 0.5 Psig or le ss and a Pressure drop of 0.3 in Wate r Column (0.75mbar). (Based on a 0.60 Specific Gravity Gas) Btu numb ers given in thousands . Cop per tu bing is prohi bited f or u se with Natural Gas in t[...]

6 720 60 8 124 Installation instructions 13 3.8 Measuring gas pressure Connectin g manometer B Shut off gas. B Remove front cover and loc ate inlet gas pressure measuring point o n the right side, see Fig. 14. B Loosen screw f rom test point on the ri ght side and connect manome ter tube on test point. Fig. 14 Gas pressu re measuring point A Inle t[...]

6 720 60 8 124 14 Operation inst ructions Fig. 15 Plumbing conne ctions and pressure relief valve show n with o ptional Webstone service valves 3.10 Recirculation application Since recirculation through the heater i s no t permissible, the following drawing is provided to outline a proper recirculation application using the Aquastar water heater wi[...]

6 720 60 8 124 Operation inst ructions 15 4.2 Lighting instructions B STOP! Read t he previous safety informati on. B The gas valve must be turned off by s liding the gas valve button to all the way to the left. Fig. 17 B Wait five (5 ) minutes to clear out an y gas. If you smell gas, STOP! Foll ow “B” in the safe ty informati on above on this [...]

6 720 60 8 124 16 Operation inst ructions ensure that the hot water temperatu re will rem ain steady, a lthough the w ater flow demand might vary. The output temperature can be adjusted with either the temperature adjustment knob or the ga s control slide. Temperatur e adjustment knob The te mperature adjust ment knob on t he front bottom of the he[...]

6 720 60 8 124 Maintenance a nd service 17 5 Mainten ance and service 5.1 Maintenance intervals The GWH 1000 P requires periodic maintenance. The below time ma intenance intervals sh ould keep the unit operating for m any years. Every year B Inspect inlet w ater filter screen ( 5.2) B Inspect pilot as sembly and flame ( 5.3 ) B Inspect burner a sse[...]

6 720 60 8 124 18 Maintenance and service 5.4 Main burners The ma in burner flames should be blue, w ith a mo re intense blue c one in the center core. Yellow f lames could be a sign of wrong size gas orifices or dirty burners, a blockage on the heat exchangers fins. If some burners have yellow fla mes while others h ave b lue flames, it is likel y[...]

6 720 60 8 124 Troubleshooti ng 19 6 Troubles hooting 6.1 Introduction Many of the que stions customers ask rega rding operation of this unit c an be answere d by following the troubleshoot ing steps as outlined below. Visi t our web site at www.bosch hotwater.com for more detailed troubleshoot ing. For best results, per form each s tep before proc[...]

6 720 60 8 124 20 Troubleshoot ing heat exch anger are available a t www.boschhot water.com. 8. If s teps 1 through 7 do not correct the problem, then confirm t hat the gas pressure is adequate. Ensure gas pressure is in acc ordance w ith m anufacturer's specifications ( see Chapter 3.9). A gas pressure reading is needed to p roceed f urther. [...]

6 720 60 8 124 Troubleshooti ng 21 2. Adjus t the gas cont rol slide button from three f lame position towards the one flame posi tion for coo ler temperatures. If the w ater is st ill too hot , the temperature adjust ment knob on the water heater maybe set t oo high. Low er th e setting and test wa ter temperature. This dial turns counter c lockwi[...]

6 720 60 8 124 22 Troubleshoot ing 6.11 Noise when heater is running 1. Confirm a dequate flow rate throug h the unit. Wit h cold supply shu t off to t he unit, d isconnect hot outlet side t o the unit. Place a half gallon jug under hot ou tlet to ca tch water. Open cold supply and measure flow rate out of the unit . With te mperature adju stment k[...]

6 720 60 8 124 Protecting t he environment 23 7 Protectin g the en vironment Packing The p acking bo x may be fully recycled a s confirmed by the recyclin g symbol . Componen ts Many parts in th e heater c an be fully r ecycled in the end of the product life. Contact your city authorities for information ab out the disposal of recy clable products.[...]

6 720 60 8 124 24 Interior compon ents and diagram parts list 8 Interior component s and diagr am parts l ist 8.1 I nterior components Fig. 27 Functional s cheme 4 Hea t exch anger 5 Bur ner 10 Tem peratu re adj ustm ent sel ector 11 Wa ter val ve 20 Ga s conn ection 22 Flexi ble ho t outl et 26 Ga s cont rol slid e 30 Pilo t gas tu bing 102 Piez o[...]

6 720 60 8 124 Interior compon ents and diagram parts list 25 8.2 Components diagram Fig. 28 Componen ts Diagram 50 49 32 48 46 45 43 28 29 30 31 25 17 18 19 20 21 23 26 24 27 33 34 35 13 36 37 22 38 39 40 41 42 44 47 8 9 11 12 13 14 15 16 10 6 4 5 51 52 1 2 3 7 6720 6081 24- 10. 1 JF[...]

6 720 60 8 124 26 Interior compon ents and diagram parts list 8.3 Par ts list Item Description Re ference 1 Front cover 8 705 431 243 0 2 Shield 8 705 506 759 0 3 T emp . control kn ob 8 702 000 304 0 4 Draft Divert er 8 705 505 438 0 5 Exhaust pi pe union Ø128 8 705 504 150 0 6 Angle brac ket 8 708 003 190 0 7 Cover retaining clip (x1 0 ) 8 700 5[...]

6 720 60 8 124 Twelve Yea r Limited Warranty 27 9 Twelve Y ear Limited Warrant y General Aquastar w ater heaters are warranted by the Manufactur er (B OSCH) throug h BBT No rth America. BBT North America (BBTNA) will furnish a replacement heat exchanger a nd w ill furnish a repl acement of any other part which fails in normal use and service within[...]

Recycled pape r © 200 6 B BT NO RTH AM E R I CA C O R PO RA TI ON , W aits field, VT all rights reser ved Installe r Checklist, to be pe rformed by installer upo n install ation Serial Numbe r ___ ___ __ _ ___ ___ ___ ___ ___ (8 d igit se rial n umber is loca ted on rating plate on r ight sid e pan el) Gas Pressure R eading* Static____ ______ Oper[...]