MODEL GWH 1600 PSINDOOR MODELStanding pilot, thermostatically modulatedSuitable for heating potable water onlyNot approved for space heatingFor use wi
6 720 606 51810Installation instructionsMasonry chimneyMasonry chimneys shall be built and installed inaccordance with NFPS 211 or local codes. A mini
6 720 606 518Installation instructions113.7 Gas piping & connectionsBefore connecting the gas supply, check the ratingplate sticker on the right s
6 720 606 51812Installation instructionsFOR NATURAL GASMaximum Capacity of pipe in Cubic Feet of Gas per Hour for Gas Pressure of 0.5 Psig or less and
6 720 606 518Installation instructions133.8 Measuring gas pressureB Proper gas pressure must be verified uponinstallation.Connecting manometerB Shut o
6 720 606 51814Operation instructions3.10 Recirculation applicationSince recirculation through tankless water heater is notpermissible, the following
6 720 606 518Operation instructions154.2 Lighting instructionsB STOP! Read the previous safety information.B The gas valve must be turned off by pushi
6 720 606 51816Operation instructions4.4 Calibrating the thermostatB If water temperature is too high or low, calibratethermostat.B Remove front cover
6 720 606 518Maintenance and service175 Maintenance and service5.1 Maintenance intervalsThe GWH 1600 PS requires periodic maintenance. The below time
6 720 606 51818Maintenance and service5.3 PilotInspecting pilotThe pilot should burn with a clean sharp blue flame. Theflame should fully engulf the t
6 720 606 518Maintenance and service196. Using a 3rd line (C) from the descaling reservoir,connect to the inlet side of circulating pump. Verifythere
6 720 606 5182IndexIndex1Warning 22 Appliance details 32.1 GWH 1600 PS specifications (Technical data) 32.2 Unpacking the GWH 1600 PS heater 42.3 G
6 720 606 51820Troubleshooting6 Troubleshooting6.1 IntroductionMany of the questions customers ask regardingoperation of this unit can be answered by
6 720 606 518Troubleshooting21water path, causing the water to over heat which shutsall gas off to the heater. See chapter 5.6.1 for descalinginstruct
6 720 606 51822Troubleshooting6.8 Water is not hot enough1. Verify gas type indicated in rating sticker located onright-hand side of cover, coincides
6 720 606 518Protecting the environment235. Make sure the water heater is vented properly. Checkfor proper draft and ensure venting is in accordancewi
6 720 606 51824Interior components and diagram parts list8 Interior components and diagram parts list8.1 Interior componentsFig. 26 Functional scheme1
6 720 606 518Interior components and diagram parts list258.2 Components diagramFig. 27 Components Diagram
6 720 606 51826Interior components and diagram parts list8.3 Parts listItem Description Reference1 Cover 8 705 421 0332 Cap cover 8 703 304 0113 Water
6 720 606 518Twelve Year Limited Warranty279 Twelve Year Limited WarrantyGeneralAquastar water heaters are warranted by theManufacturer (BOSCH) throug
Recycled paper © 2007 BBT NORTH AMERICA CORPORATION, Waitsfield, VT all rights reservedInstaller Checklist, to be performed by installer upon installa
6 720 606 518Appliance details32 Appliance details2.1 GWH 1600 PS specifications (Technical data)Approved in US/CanadaCapacityGWH 1600 PS: 4.3 GPMMaxi
6 720 606 5184Appliance details2.2 Unpacking the GWH 1600 PS heaterThis heater is packed securely.Before installing the unit, be certain you have thec
6 720 606 518Appliance details52.4 DimensionsFig. 3 Dimensions in Inches and (mm)4 Heat exchanger5 Burner11 Water valve20 Gas connection36 Front cover
6 720 606 5186Installation instructions3 Installation instructions3.1 IntroductionPlease follow these instructions. Failure to followinstructions may
6 720 606 518Installation instructions73.4 Mounting HeaterRemove cover and inspect.B Loosen the fixing screw, bottom of the front cover.B Remove the o
6 720 606 5188Installation instructions3.5 Combustion air requirementsThe AquaStar water heater holds cold water in itscopper heat exchanger and water
6 720 606 518Installation instructions93.6 Venting B Minimum vent pipe diameter: 5 inchesB Minimum vertical vent height: 6 feet, with no elbowsB Estab
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