Instruction/ maintenance manual of the product GWH 1600 PS Bosch Appliances
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6 720 606 518 2 Index Index 1W a r n i n g 2 2 Appliance details 3 2.1 GWH 1600 PS specifications (Technical data) 3 2.2 Unpacking the GWH 1600 PS heater 4 2.3 General rules to follow for safe operation 4 2.4 Dimensions 5 3 Installation instructions 6 3.
6 720 606 518 Appliance details 3 2 Appliance details 2.1 GWH 1600 PS specifications (Technical data) Approved in US/Canada Capacity GWH 1600 PS: 4.3 GPM Maximum output GWH 1600 PS: 96,600 Btu/hr Maximum input GWH 1600 PS: 117,000 Btu/hr Efficiency in % Recovery efficiency 80% Min.
6 720 606 518 4 Appliance details 2.2 Unpacking the GWH 1600 PS heater This heater is packed securely. Before installing the unit, be certain you have the correct heater for your type of Gas - Propane or Natural Gas.
6 720 606 518 Appliance details 5 2.4 Dimensions Fig. 3 Dimensions in Inches and (mm) 4 Heat exchang er 5 Burner 11 Water valve 20 Gas connection 36 Front cover 37 Holes for hanging o n wall 38 Exhaus.
6 720 606 518 6 Installation instructions 3 Installation instructions 3.1 Introduction Please follow these instru ctions. Failure to follow instructions may result in: B Damage or injury.
6 720 606 518 Installation instructions 7 3.4 Mounting Heater Remove cover and inspect. B Loosen the fixing screw, bott om of the front cover. B Remove the outer cover by pulling it forwards and then lifting upwards, see Fig. 6. B Ensure that the flue terminal is clear.
6 720 606 518 8 Installation instructions 3.5 Combustion air requirements The AquaStar water heater holds cold water in its copper heat exchanger and wa ter valve when not in us e. Because of this, any cold air that comes down through the unit's vent pipe i s capable of freezing these components.
6 720 606 518 Installation instructions 9 3.6 Venting B Minimum vent pipe diameter: 5 i nches B Minimum vertical vent he ig ht: 6 feet, with no elbows B Establish 12 inch rise before any elbow The heater must be vented to the outside fol lowing all local ordinances and specifications for in stalling a gas appliance vent or chimney .
6 720 606 518 10 Installation instructions Masonry chimney Masonry chimneys shal l be built and installed in accordance with NFPS 211 or local codes. A minimum 5" diameter gas vent pipe (metal do.
6 720 606 518 Installation instructions 11 3.7 Gas piping & conne ctions Before connecting the gas suppl y, check the rating plate sticker on the right si de of the heater to be sure that the heater is rated for the s ame gas to which it will be connected.
6 720 606 518 12 Installation instructions FOR NA TURAL GAS Maximum Capacity of pipe in Cubic Feet of Gas per Hour for Gas Pressure of 0.5 Psig or less and a Pressure drop of 0.3 in Water Column (0.75mbar).(Based on a 0.60 Sp ecific Gravity Gas) Btu num bers given in thousands.
6 720 606 518 Installation instructions 13 3.8 Measuring gas pressure B Proper gas pressure must be verified upon installation. Connecting manometer B Shut off gas with installer suppl ied shutoff valve. B Remove front cover and locate inlet gas pressure measuring tap above the regulator, see Fi g.
6 720 606 518 14 Operation instructions 3.10 Recirculation application Since recirculation through t ankless water heater is not permissible, the followi ng drawing is provided to outline a proper recirculation application us ing the Aquastar water heater with an Ariston tank water heater.
6 720 606 518 Operation instructions 15 4.2 Lighting instructions B STOP! Read the previous safety information. B The gas valve must be turned off by pushing the gas valve off ( ) button. Fig. 18 B Wait five (5) minutes to clear out any gas. If you s mell gas, STOP! Follow “B” in chapter 4.
6 720 606 518 16 Operation instructions 4.4 Calibrating the thermostat B If water temperature is t oo high or low, calibrate thermostat. B Remove front cover. B Loosen the lock-nut collar above t he 22 mm nut to begin the calibration procedure. A seal of yellow paint will be broken when it is loosene d.
6 720 606 518 Maintenanc e and service 17 5 Maintenance and service 5.1 Maintenance intervals The GWH 1600 PS requires periodic maintenance. The below time maintenance intervals shoul d keep the unit operating for many years. Every year B Inspect inlet water fi lter screen ( 5.
6 720 606 518 18 Maintenance and service 5.3 Pilot Inspecting pilot The pilot should burn with a clean sharp bl ue flame. The flame should fully engulf the tip of the thermocouple. If it does not, cl ean the pilot ass embly using the procedure below. Cleaning pilo t assembly • 1.
6 720 606 518 Maintenanc e and service 19 6. Using a 3rd line (C) from the descaling reservoir, connect to the inlet s ide of circulating pump. Verify there is a filter on the end of the line in the descaling reservoir. 7. Make sure all connections are "hand tigh t.
6 720 606 518 20 Troubleshooting 6 Troubleshooting 6.1 Introduction Many of the questions customers ask regarding operation of this unit can be answered by following the troubleshooting steps as outl ined below. Visit our web site at www.boschhotwater.
6 720 606 518 Troubleshooting 21 water path, causing the wate r to over heat which shu ts all gas off to the heater. See chapter 5.6.1 for descaling instructions. 8. If steps 1 through 7 do not correct the problem, then confirm that the gas pressure is adequate.
6 720 606 518 22 Troubleshooting 6.8 Water is not hot enough 1. Verify gas type indicated in rating sticker located on right-hand side of cover, coincides with the gas type you are using. NG is a natural gas unit and LP is for liquid propane. 2. Flow at one particular tap is too great or too many fixtures a re running a t one time .
6 720 606 518 Protecting the environment 23 5. Make sure the water heate r is vented properly. Check for proper draft and ensure venti ng is in accordance with manufacturer's specifications (see chapter 3.6). 6. The water heater has burners muc h like a furnace.
6 720 606 518 24 Interior components and di agram parts list 8 Interior components and diagram parts list 8.1 Interior components Fig. 26 Functional scheme 1 Heat exchanger 2 Burner manifold gas press.
6 720 606 518 Interior components and diagram parts list 25 8.2 Components diagram Fig. 27 Components Diagram.
6 720 606 518 26 Interior components and di agram parts list 8.3 Parts list Item Description Reference 1 Cover 8 705 421 033 2 Cap cover 8 703 304 011 3 Water connection gasket 8 710 103 043 5 Heat ex.
6 720 606 518 Twelve Year Limited Warranty 27 9 Twelve Year Limited Warranty General Aquastar w ater hea ters are warranted b y the Manufacturer (BOSCH) thro ugh BBT North America.
Recycled paper © 2007 BB T NO RTH AM E R IC A C O R P O R A TIO N, W aitsfield, VT all rights reser ved Installer Checklist, to be perfor med by installer upon installation Serial Number ___ ___ ___ .
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If you already are a holder of Bosch Appliances GWH 1600 PS, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bosch Appliances GWH 1600 PS.
However, one of the most important roles played by the user manual is to help in solving problems with Bosch Appliances GWH 1600 PS. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bosch Appliances GWH 1600 PS along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
