Bosch Appliances 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 ab le wat er only Not app roved fo r 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 U S (06.05) A L Warn ing: If the i nformatio n in this m anual is n[...]

6 720 608 124 2 Index Index 1 Warning 2 2 Appliance d etails 3 2.1 GWH 1000 P specifications (Tech nical data) 3 2.2 Unpacking t he GWH 1000 P heate r 4 2.3 General ru les to follow for safe opera tion 4 2.4 Dimensions and installation clearance s 5 3 Installation instructions 6 3.1 Introduction 6 3.2 Proper location for installing your hea ter 6 3[...]

6 720 608 124 Appliance det ails 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 o utput GWH 1000 P: 58 400 Btu/hr Maximum in put GWH 1000 P: 74 900 Btu/hr Efficiency in % Recovery efficiency 78% Min. Outp ut GWH 1000 P: 23 906 Btu/hr Gas Requi rement Gas conne ction ([...]

6 720 608 124 4 Appliance de tails 2.2 Unpacking the GWH 1000 P heater This heater i s packed securely. Before installing the unit, be certain you have the correct heater for you r type of G as - Prop ane or Natural Gas. Ide ntification l abels are found on the shipping box, and on the rating plate which is loca ted on the right side panel of the c[...]

6 720 608 124 Appliance det ails 5 2.4 Dimensions and installation clearances Fig. 3 Dimensions in Inches and (mm) 4 Heat exchanger 5 Burn er 10 T emperature co ntrol 11 Wa ter valve 20 G as connectio n 26 O utput control 36 F ront cover 37 Ho le for fixing t o wall 38 E xhaust pipe to connector 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 f ollow these i nstructions. Fa ilure to follow instructions m ay result in: B Damage or injury. B Improper operation. B Loss of war ranty. If you are unable to perform the tasks required to install this heater pr operly, please contact a loc ally licen[...]

6 720 60 8 124 Installation instructions 7 3.4 Mounting Heater Remove co ver and inspect. B Remove the te mperature control. B Remove the ou ter case by pulling it fo rwards and then lifting up wards. B Ensure that th e flue terminal is clear. B After inspection , replace front cover. Install inc andescent particle tray. B Install incandenscent par[...]

6 720 60 8 124 8 Installation instructions 3.5 Combustion air requirements The A quaStar water heater holds cold water in its copper heat exchanger and w ater valv e when n ot in use. Because of this, any co ld air that comes down through the unit's vent pipe is capable of freezing these components. This In stallation Manual s pecifies 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, with no elbows B Establish 12 in ch rise before any elbow The heater must be vented to t he outside following all local o rdinances a nd specificat ions for installing a gas appliance vent or ch imney. The heater m[...]

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 pi pe (metal double wall Type 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, intern[...]

6 720 60 8 124 Installation instructions 11 3.7 Gas piping & connections Before connecting the gas supply, check th e rating plate on the r ight si de of the heater to be sure that the heater is rated for t he same g as to w hich i t wil l be connected. In the U nited S tates: The installation must con form w ith local cod es or, in the abs enc[...]

6 720 60 8 124 12 Installation instructions FOR NA T UR 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 num bers given in thousand s. Cop per tubing is prohibited for use wit h N atural Gas in the[...]

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 inl et gas pressure measuring poi nt on 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 [...]

6 720 60 8 124 14 Operation i nstructions Fig. 15 Plumbing conne ctions and pressure relief valve show n with option al Webstone se rvice valves 3.10 Recirculation application Since recirculation through the heater i s n ot permissible, the following drawing is provided to outline a proper recirculation ap plication using the Aquastar water heater [...]

6 720 60 8 124 Operation in structions 15 4.2 Lighting instructions B STOP! Read t he previous safety informa tion. B The gas valve mus t be turned off by s liding the gas valve button to a ll the way to the left. Fig. 17 B Wait five (5 ) minutes to cle ar ou t an y g as. If you smell gas, STOP! Foll ow “B” in the safe ty informa tion above on [...]

6 720 60 8 124 16 Operation i nstructions ensure that the hot water temperatu re wi ll remai n steady, a l though the water flow d emand might v ary. 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 ad justment knob on the front bottom of the [...]

6 720 60 8 124 Maintenance and 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 many years. Every year B Inspect inlet w ater filter screen ( 5.2) B Inspect pilot a ssembly and flame ( 5.3 ) B Inspect burne r assemb[...]

6 720 60 8 124 18 Maintenance and service 5.4 Main burners The main burner flames should b e blue, w ith a mo re intense blue c one in the cente r core. Yellow fla mes could be a sign of wrong size gas orifices or dirty burners, a blockage on the heat exchangers fins. If some burners have yel low flames while oth ers have blue 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 followi ng 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, perform 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 t eps 1 thr ough 7 d o n ot c orrect the problem, then confirm t hat the gas pressure is adequate. Ensure gas pressure is in a ccordance with manuf acturer's specificatio ns (see Chapt er 3.9). A gas p ressure reading is needed to proceed furth[...]

6 720 60 8 124 Troubleshooti ng 21 2. Adjus t the gas cont rol slide button from three f lame position toward s the one flame position for cooler temperatures. If the w ater is st ill too hot , the temperature a djustment kno b on the wat er heater maybe set t oo high. Low er the setting a nd test water temperature. This d ial turn s counter clockw[...]

6 720 60 8 124 22 Troubleshoot ing 6.11 Noise when heater is running 1. Confirm ad equate flow rate through the unit. Wit h cold supply shu t off to t he unit, discon nect hot outlet side t o the unit. Place a half gallon jug under hot o utlet to ca tch water . Open cold supply and measure flow rate out of the u nit. With temperatu re a djustment k[...]

6 720 60 8 124 Protecting t he environment 23 7 Protectin g the en vironment Packing The packing 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 f ully re cycled in the end of the product life. Contact your city authorities for information about the disposal of recyclable products. S[...]

6 720 60 8 124 24 Interior co mponents and diagram parts list 8 Interior component s and diagr am parts list 8.1 I nterior components Fig. 27 Functional s cheme 4 Hea t exch anger 5 Bu rner 10 Tem peratu re adj ustm ent sel ector 11 Wa ter val ve 20 Ga s conn ection 22 Flex ible h ot out let 26 Ga s cont rol slid e 30 Pilo t gas tubing 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 608124 -10. 1 JF[...]

6 720 60 8 124 26 Interior co mponents and diagram parts list 8.3 Par ts list Item Description Re ference 1 Front cove r 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 p ipe union Ø128 8 705 504 150 0 6 Angle brac ket 8 708 003 190 0 7 Cover retaining cl ip (x1 0 ) 8 700[...]

6 720 60 8 124 Twelve Y ear Limited Warranty 27 9 Twelve Year Limite d Warrant y General Aquastar water h eaters are warranted b y the Manufactu rer (BOSCH) th rough BBT No rth America. BBT North America (BBTNA) wi ll furnish a replacement heat exchanger a nd will furnish a replaceme nt of any other part which fails in normal u se and servi ce with[...]

Recycled pa per © 200 6 B BT NO RTH AM E R I CA CO R PO RA TI ON , W ait sfield, VT all rights reser ved Installe r Checklis t, to be pe rformed by installer u pon install ation Serial Numbe r ___ ___ __ _ ___ ___ ___ ___ ___ (8 d igit se rial n umber is loca ted on rating pla te on r ight si de pan el) Gas Pressure Reading* Static____ ______ Oper[...]