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Anleitung Zusammenfassung
Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Appliance details 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. Output GWH 1600 PS: 23,400 Btu/hr Gas Requirement Gas connection (inches) - .” NPT Inlet gas pressure under maximum operation* • Propane: 10.5” - 14” water column • Natural Gas: 5.7” - 14” water column. * To measure Gas Pressure, see Measuring Gas Pressure, chapter 3.8. Venting • Natural Draft • Vent diameter (inches) - 5” • Minimum height (feet) - 6’ with no elbows • Vertical termination • Sidewall termination only with AQ1 power vent kit. Water • Hot water connection (inches) - .” NPT • Cold water connection (inches) - .” NPT • Water valve material: Brass • Minimum water flow: 0.5 gallon/minute (1.9 l/m) • Minimum recommended water pressure: 30 PSI (2.07 bar) • Connections: – Bottom of heater Dimensions • Depth (in): 8 .” (222 mm) • Width (in): 18 .” (463 mm) • Height (in): 29 .” (756 mm) • Weight: 44 lb (20 kg). Gas types Natural Gas. LP Gas Safety devices • Flame failure device (ionization thermocouple) • Pressure relief valve (supplied with heater) • Over heat prevention (temperature limiter). 6 720 606 518 Installation instructions 3 Installation instructions 3.1 Introduction Please follow these instructions. Failure to follow instructions may result in: B Damage or injury. B Improper operation. B Loss of warranty. If you are unable to perform the tasks required to install this heater properly, please contact a locally licensed plumber or gas technician. Please contact Bosch Water Heating with any questions. 3.2 Proper location for installing your heater Carefully select the location of the water heater. For your safety and for proper heater operation, you must provide combustion air to the heater and a proper exhaust vent system. Follow the guidelines below: B 1. Locate the heater where venting, gas and plumbing connections are feasible and convenient. B 2. The hot water lines should be kept short to save energy. Centrally locating the water heater is best. It is always best to have hot water lines insulated. B 3. Do not install in a bathroom, bedroom or any other habitable room normally kept closed. Warning: The water in this water heater is cold and always remains cold except for the times that hot water is being used. DO NOT INSTALL IN AN AREA WHERE IT COULD FREEZE. Drain the heater entirely if freezing temperatures are anticipated in area where heater is installed. See chapter 4.5 for draining instructions. To prevent any freeze damage, introduce short bursts of compressed air (20-40psi) through these connections to remove the residual water in the horizontal pipes and water valve. Warning: Flammable materials, gasoline, pressurized containers, or any other items or articles that are potential fire hazards must NOT be placed on or adjacent to the heater. The appliance area must be kept free of all combustible materials, gasoline and other flammable vapors and liquids. Warning: The heater must be isolated 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: Place the heater in a location where water leaks will do NO DAMAGE to adjacent areas. 3.3 Heater placement and clearances The GWH 1600 PS is design certified for installation on a combustible wall (see 3.4 Mounting installation) provided the floor covering below the heater is noncombustible. For installations in an alcove or closet, maintain the minimum clearances to combustible and non-combustible materials listed below. See also Fig. 4. A. Top 12 inches (306 mm) B. Front 4 inches (100 mm) C. Back 0 inches D. Sides 4 inches (100 mm) E. Bottom 12 inches (306 mm) Model GWH 1600 TOP (A) 12 inches (306 mm) FRONT (B) 4 inches (100 mm) BACK 0 inches SIDES 4 inches (100 mm) BOTTOM (C) 12 inches (306 mm) Fig. 4 Minimum clearances 6 720 606 518 Installation instructions 3.5 Combustion air requirements The AquaStar water heater holds cold water in its copper heat exchanger and water valve when not in use. Because of this, any cold air that comes down through the unit's vent pipe is capable of freezing these components. This installation manual specifies the minimum vertical vent pipe height and the amount of combustion air required for this unit. When all requirements are followed, the unit will operate properly and safely. However, there may still be a risk of freezing due to negative draft if all the combustion appliances in the building are not being supplied with a sufficient amount of make-up air. A wood stove or furnace can pull cold air down the Aquastar's vent pipe, freezing the cold water in the heat exchanger or water valve causing damage. Supp...