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Anleitung Zusammenfassung
For assistance or additional information consult a qualified installer, service agency or the gas supplier. Upon completion of the installation, these instructions should be handed to the user of the appliance for future reference. In the Commonwealth of Massachusetts this product must be installed by a licensed plumber or gas fitter. INSTALLATION AND OPERATING INSTRUCTIONS FOR AUTOMATIC INSTANTANEOUS TYPE WATER HEATERS FOR USE WITH NATURAL AND LIQUEFIED PETROLEUM GAS MODEL 38B LP and NG Suitable for heating potable water only Not approved for space heating purposes Intended for low flow domestic hot water applications with steady cold water inlet temperatures WARNING If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. 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. WHAT TO DO IF YOU SMELL GAS - Do not try to light any appliance. - Do not touch any electrical switch; do not use any phone in your building. - Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. - If you cannot reach your gas supplier, call the fire department. - Installation and service must be performed by a qualified installer, service agency or the gas supplier. Specifications ................................................................. Page 2 Rules for safe operation ............................................... Page 4 Locating the Heater ...................................................... Page 4 Combustion Air Requirements .................................... Page 5 Mounting the Heater ..................................................... Page 5 Venting the Heater ........................................................ Page 7 Gas Connections .......................................................... Page 9 Water Connections .................................................... Page 10 Safety before lighting the pilot ................................ Page 11 Lighting instructions ................................................... Page 11 Setting water temperature ........................................ Page 12 Maintenance & Service ............................................. Page 12 Trouble Shooting ......................................................... Page 13 Diagram of AquaStar ................................................. Page 16 Components and Parts List ...................................... Page 19 Warranty ....................................................................... Page 21 TABLE OF CONTENTS 6 720 606 446 US (06.01) AL This well engineered, gas water heater has all the features a water heater should have: It operates on the principle of heating water instantaneously “on demand”. When a hot water faucet is opened, cold water flows through the coils of the heat exchanger in the Aquastar. This same flow opens the gas valve, and the burners are ignited by the pilot flame. The heat exchanger coils absorb the heat generated by the burners and transfer heat to the water. When the hot water faucet is shut off, the gas valve automatically closes and the burners turn off. Your hot water faucet is an ignition key to turn on the water heater, giving you control over your hot water energy use. Each time you turn off your hot water faucet, you also shut off the water heater. FEATURES -High Quality Materials for Long Working Life. -Copper heating coils for endless supply of hot water. -Safety thermocouple at pilot burner. -Automatic overheating protection shut-off sensor. -Stainless steel burners with stabilized blue flame. -Built-in corrosion resistant draft inducer. -Compact space saver: mounts on a wall with two hooks. -Easily removable one-piece cover. -Easy one person installation. -Adjustable water flow restrictor to ensure that water flow demand will not exceed the heating capacity of the heater. -Easy pilot flame lighting with push button piezo ignition. BOSCH is constantly improving our products, therefore specifications are subject to change without prior notice. AquaStar 38B LP and 38B NG Specifications Gas Input max.: 40,000 Btu/hr min.: 20,000 Btu/hr Water Connection 1/2” Thread fitting NPT H x W x D 25 3/8” x 10 5/8” x 9 1/8" Vent 4” Gas Connection 1/2” NPT thread Min. Water Pressure 13 Psi at 1.3 GPM Max. Water Pressure 150 Psi Shipping Weight 20 LB Net Weight 18 LB 0.5 GPM at 90 ° rise 1.3 GPM at 45 ° rise Min. Water Flow 1/2 gal/min LP GAS Supply Pressure (before Aquastar regulator) min.: 11” W.C. max.: 14” W.C.* Required LP GAS Pressure at inlet tap while Aquastar is operating: 10.5” W.C. LP GAS Burner Manifold pressure while Aquastar is operating at maximum input: 9.0” W.C. Natural Gas Supply Pressure (before Aquastar regulator) min.: 7” W.C. max.: 14” W.C.* Required Natural Gas Pressure at inlet tap while Aquastar is operating: 5.7” W.C. Natural Gas Burn...