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manual abstract
Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier. In the Commonwealth of Massachusetts this product must be installed by a licensed plumber or gas fitter. Upon completion of the installation, these instructions should be handed to the user of the appliance for future reference. What to do if you smell gas • Close gas valve. Open windows. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • If you cannot reach your gas supplier, call the fire department. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions • Installation and service must be performed by a qualified installer, service agency or the gas supplier. Index Index 1 Warning 3 6 Maintenance and service 32 6.1 Annual maintenance 32 6.2 Winterizing for seasonal use 32 2 Appliance details 4 6.3 Mineral scale build-up 33 2.1 Features 4 6.4 Adjusting CO2 (carbon dioxide) 33 2.2 Specifications (Technical data) 5 6.5 Program values 36 2.3 Unpacking the heater 6 6.6 Control board diagnostics 37 2.4 General rules to follow for safe operation 7 2.5 Dimensions and Minimum installation clearances 8 7 Troubleshooting 38 7.1 Introduction 38 7.2 Burner do not ignite when hot water 3 Installation instructions 9 is turned ON 38 3.1 Tools required for installation 9 7.3 Water is too hot 38 3.2 Introduction 9 7.4 Water is not hot enough 38 3.3 Venting 9 7.5 Low water flow/pressure 39 3.4 Combustion air requirements 20 7.6 Hot water temperature fluctuates at tap 39 3.5 Proper location for installing your heater 21 7.7 Noisy burner/heater during operation 39 3.6 Heater placement and clearances 21 3.7 Mounting installation 21 3.8 Gas piping & connections 22 8 Problem solving 41 3.9 Water connections 25 8.1 Error code diagnostics 41 3.10 Water quality 25 3.11 Domestic hot water recirculation 26 9 Electrical diagram 45 3.12 Measuring gas pressure 27 10 Sensor resistance charts 46 4 Electrical connections 28 4.1 Electrical power supply 28 4.2 Position of the fuses in control unit 28 11 GWH 2700 ES Functional scheme 48 5 Operation instructions 29 12 Interior components diagram 5.1 LCD Display functions 29 and parts list 49 5.2 For your safety read before operating 12.1 Interior components 49 your water heater 30 12.2 Components diagram 51 5.3 Power 30 5.4 Temperature selection 30 5.5 Use of optional remote control accessory 13 Protecting the environment 57 (part no. TSTAT2) 31 5.6 Operation 31 5.7 Reset button 31 14 Limited Warranty 58 5.8 Program button 31 5.9 Locked condition 31 6 720 608 542 Warning Warning For your safety Do not store or use gasoline or other flammable, combustible or corrosive vapors and liquids in the vicinity of this or any other appliance. Warning: Carefully plan where you install the heater. Correct combustion air supply and flue pipe installation are very important. If a gas appliance is not installed correctly, fatal accidents can result, such as carbon monoxide poisoning or fire. Warning: Exhaust gas must be vented to outside using stainless steel vent material suitable for category III vent systems and temperatures up to 480°F. Vent piping must be sealed gas-tight to prevent possibility of flue gas spillage, carbon monoxide emissions and risk of fire, resulting in severe personal injury or death. Approved vent terminators must be used when penetrating to the outside. Warning: Place the heater in a location where water leaks will do NO DAMAGE to adjacent areas or lower floors. Warning: Field wiring connections and electrical grounding must comply with local codes, or in the absence of local codes, with the latest edition of the National Electric Code, ANSI/NFPA 70, or in Canada, all electrical wiring must comply with the local codes and the Canadian Electrical Code, CSA C22.1 Part 1. Warning: Shock hazard: line voltage is present. Before servicing the water heater, unplug power supply cord from outlet. Failure to do so could result in severe personal injury or death. Warning: The heater must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures equal to or more than 0.5 psig. Warning: The appliance should be located in an area where leakage of the heater or connections will not result in damage to the area adjacent to the appliance or to lower floors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not restrict combustion air flow. Warning: The maximum inlet gas pressure must not exceed the value specified by the manufacturer and that the minimum value listed is for the purposes of input adjustment. Warning: If a water heater is installed in a closed water supply system, such as on...
Other models in this manual:Water Heaters - GWH 2700 ES NG (4.78 mb)