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AquaStar GWH 1600 P - page 1
M O DE L G W H 1 6 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 160 0 P NG - Na tural Gas MODE L GWH 160 0 P LP - Liqu efied Pet roleum (LP ) Gas 6 720 608 030 U S (06.05) A L Warn ing: If the i nformatio n in this m anual is n ...
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AquaStar GWH 1600 P - page 2
6 720 608 030 2 Index Index 1 Warning 2 2 Appliance d etails 3 2.1 GWH 1600 P specifications (Tech nical data) 3 2.2 Unpacking t he GWH 1600 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 ...
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AquaStar GWH 1600 P - page 3
6 720 608 030 Appliance det ails 3 2 Applian ce details 2.1 GWH 1600 P specifications (Technical data) Approved in US/Canada Capacity GWH 1600 P: 4.3 GPM Maximum o utput GWH 1600 P: 91 525 Btu/hr Maximum in put GWH 1600 P: 117 000 Btu/hr Efficiency in % Recovery efficiency 78% Min. Outp ut GWH 1600 P: 23 906 Btu/hr Gas Requi rement Gas conne ction ...
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AquaStar GWH 1600 P - page 4
6 720 608 030 4 Appliance de tails 2.2 Unpacking the GWH 1600 P heater This heater i s pac ked 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 foun d o n the shipping box, and on t he rating plate which is loca ted on the right side panel of t ...
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AquaStar GWH 1600 P - page 5
6 720 608 030 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 ...
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AquaStar GWH 1600 P - page 6
6 720 608 030 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 licens ...
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AquaStar GWH 1600 P - page 7
6 720 608 030 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, see Fig. 6. B Ensure that th e flue terminal is clear. B After inspection , replace front cover. Install inc andescent particle tray. B Install incand ...
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AquaStar GWH 1600 P - page 8
6 720 608 030 8 Installation instructions 3.5 Combustion air requirements The A quaStar water heater holds cold water in its copper he at exchanger and water valv e when not i n use. Because of this, any co ld air that comes down through the unit's ve nt pipe is capable of freezing these components. Thi s Ins tallation Manual specifies the min ...
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AquaStar GWH 1600 P - page 9
6 720 608 030 Installation instructions 9 3.6 Venting B Minimum vent p ipe diameter: 5 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 mu ...
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AquaStar GWH 1600 P - page 10
6 720 608 030 10 Installation instructions Masonry chim ney Masonry chimneys sh all be built and installed in accordance with NFPS 211 or local codes. A minimum 5" 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, interna ...
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AquaStar GWH 1600 P - page 11
6 720 608 030 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 United States: The installation must conform with local cod es or, in the abs ence of ...
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AquaStar GWH 1600 P - page 12
6 720 608 030 12 Installation instructions FOR NA TU RA L 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 tub ing is prohibited f or use with Natural Gas in the ...
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AquaStar GWH 1600 P - page 13
6 720 608 030 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. 15. B Loosen screw f rom test point on the ri ght side and connect manome ter tube on test point. Fig. 15 G as pressure measuring point A Inlet ...
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AquaStar GWH 1600 P - page 14
6 720 608 030 14 Operation i nstructions 3.10 Recirculation application Since recirculation through the h eater is not permissible, the following drawing is pr ovided to outline a proper recirculation ap plication using the Aquastar water heater with an Ariston minitank. This schematic is for illustratio n only and must not be used for actua l inst ...
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AquaStar GWH 1600 P - page 15
6 720 608 030 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. 18 B Wait five (5) minutes t o clear out any gas. If you smell gas, STOP! Follow “B” in chapter 4.1. If you don’t smell gas, g ...
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AquaStar GWH 1600 P - page 16
6 720 608 030 16 Operation i nstructions ensure that the hot water temperatu re wi ll remai n steady, a lthough the water 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 temp erature adjustmen t knob on t he front bot tom of the he ...
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AquaStar GWH 1600 P - page 17
6 720 608 030 Maintenance and service 17 5 Mainten ance and service 5.1 Maintenance intervals The GWH 1600 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 assembl ...
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AquaStar GWH 1600 P - page 18
6 720 608 030 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 bur ners have yellow flames while others have blue flames, it is likel y t ...
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AquaStar GWH 1600 P - page 19
6 720 608 030 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 proce ...
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AquaStar GWH 1600 P - page 20
6 720 608 030 20 Troubleshoot ing 6. Verify pilot flame completely engulfs the thermocoupl e tip. If pilot is too sm all, clean pilot orifice (see chapter 5. 3). 7. If the wa ter has a high mineral content, the hea t exchanger may be scal ed internall y. This restricts th e water pa th, causing t he water to over heat which shuts all gas off t o t ...
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AquaStar GWH 1600 P - page 21
6 720 608 030 Troubleshooti ng 21 6.7 Water is too hot 1. Verify gas type indicated in rating sticker located on right-hand s ide of cover, coincides with t he gas t ype you are using . NG is a natural gas unit and LP is for liquid prop ane. 2. Adjus t the gas cont rol slide button from three f lame position toward s the one flame position for cool ...
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AquaStar GWH 1600 P - page 22
6 720 608 030 22 Troubleshoot ing the w ay clockwise , the flow rate sho uld be close to 2gpm, filling t he jug in 15 sec onds. With the temperature adju stment knob set all the wa y counterclockwi se, the f low rate should be close to 4gpm, fillin g the jug in 7 seconds. If t he flow rate is not adequate, insp ect and clean the inlet filter scre e ...
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AquaStar GWH 1600 P - page 23
6 720 608 030 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 the heater can be fully recycled in the end of the product life. Contact your city authorities for information about the disposal of recyclable products. Saving ...
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AquaStar GWH 1600 P - page 24
6 720 608 030 24 Interior co mponents and diagram parts list 8 Interior component s and diagr am parts list 8.1 I nterior components Fig. 28 Func tional scheme 4 Heat e xchanger 5 Burner 10 Tempe rature adjus tment select or 11 Water valve 20 Gas con nection 22 Flexib le hot outlet 26 Gas con trol slide 30 Pilot g as tubing 102 Piezo ...
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AquaStar GWH 1600 P - page 25
6 720 608 030 Interior compon ents and diagram parts list 25 8.2 Components diagram Fig. 29 C omponents 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 67206 08124-1 0.1 JF ...
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AquaStar GWH 1600 P - page 26
6 720 608 030 26 Interior co mponents and diagram parts list 8.3 Par ts list Item Description Re ference 1 Front cove r 8 705 431 244 0 2 Shield 8 705 506 759 0 3 T emp . control knob 8 702 000 304 0 4 Draft Divert er 8 705 505 442 0 5 Exhaust p ipe union Ø128 8 705 504 046 0 6 Angle brac ket 8 708 003 192 0 7 Cover retaining cl ip (x1 0) 8 700 50 ...
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AquaStar GWH 1600 P - page 27
6 720 608 030 Twelve Y ear Limited Warranty 27 9 Twelve Year Limite d Warrant y General Aquastar water hea ters are warra nted by t he Manufactu rer (BOSCH) th rough BBT No rth America. BBT North A merica (BBTNA) will f urnish a replacement heat exchanger a nd will furnish a replaceme nt of any other part which fails in normal u se and servi ce wit ...
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AquaStar GWH 1600 P - page 28
Recycled pa per © 2 006 B B T N O RTH AM E R I CA CO R PO RA TI O N, W aitsfield , VT all rights reserv ed Installe r Checklis t, to be pe rformed by installer u pon install ation Serial Numbe r ___ ___ __ _ ___ ___ ___ ___ ___ (8 di git serial num ber is locate d on rating pl ate on righ t side panel) Gas Pressure Reading* Static____ ______ Opera ...
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