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PVI Industries Storage and Semi-instantaneous Steam Heaters PV500-25 manual

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Table of contents for the manual

  • Page 1

    PV500-25 10/07 INSTALLATION & MAINTENANCE MANUAL QuickDraw ® Storage and Semi-instantaneous Steam Heaters Installation and service must be performed by a qualified service installer, service agency or the utility supplier. IMPORTANT: THIS MANUAL CONTAINS INFORMATIO N REQUIRED FOR INSTALLATION, OPERATION AND MAINTENANCE OF THIS EQUIPMENT. READ [...]

  • Page 2

    QUICKDRAW ® Steam Heater 2 CHECKING EQUIPMENT BEFORE YOU INSTALL Inspect the unit completely upon receipt from the freight carrier before signing the bill of lading. Inspect the appliance and all accompanying parts for signs of impact or mishandling. Verify the total number of pieces shown on packing slips with those actually received. Contact the[...]

  • Page 3

    QUICKDRAW ® Steam Heater 3 WARNING: Use industry standard safe rigging methods when attempting to lift or move this product. Failure to follow these instructions could result in property damage, serious injury or death. One common method includes th e use of straps and spreader bars, lifting from the water heater base skid assembly. 1. Check the d[...]

  • Page 4

    QUICKDRAW ® Steam Heater 4 Typical QuickDraw ® Storage Construction Typical QuickDraw ® Instantaneous Construction 1. U-tube Heat Exchan g e r 5. Potable Water Inlet 2. Tank Drain 6. Steam Inlet 3. Control Enclosure 7. Potable Water Outlet 4. Relief Valve ( AGA o p tional ) 8. Condensate Outlet Note: Components, controls and connection locations[...]

  • Page 5

    QUICKDRAW ® Steam Heater 5 IMPOR T ANT SAFETY NOTE It takes only 5 seconds of skin contact with 140°F water to cause a second degree burn! You must protect against high water temperatures at all lavatories, tubs, showers and other points of hot water contact. Accidental scalding from high water temperatures is a greater risk in some types of inst[...]

  • Page 6

    QUICKDRAW ® Steam Heater 6 WATER INLET / OUTLET CONNECTIONS Important: Do not use galvanized or steel pipe nipples when making waterside connections. Use non-ferrous nipples only. Make inlet and outlet water connections directly to the threaded bolt-on bronze tank flanges. Over tightening connections to the flanges may cause damage to the flange o[...]

  • Page 7

    QUICKDRAW ® Steam Heater 7 3. Connect condensate trap inlet parallel to or below the outlet of the heat exchanger. The ability to lift condensate via steam pressure cannot be assured on QuickDraw products due to the possible use of a modulating steam valve (storage units only) or multiple solenoid steam control system. The recommended methods of c[...]

  • Page 8

    QUICKDRAW ® Steam Heater 8 WARNING: Failure to operate the heat exch anger within the design pressure and temperature on the nameplate may result in damage to the heat exchanger and potential injury to adjacent personnel. 5. Open nearby hot water tap to maintain a flow of water through the tank when starting up units. Regulate flow of water throug[...]

  • Page 9

    QUICKDRAW ® Steam Heater 9 Steam Valve Actuator The steam valve actuator (if applicable) is sealed and requires no maintenance. Durability of valve stems and packing is dependent upon maintaining non-damaging water conditions. Inadequate water treatment or filtration can result in corrosion, scale, and abrasive particle formation. Scale and partic[...]

  • Page 10

    QUICKDRAW ® Steam Heater 10 CAUTION: When cleaning a tube bundle, tubes should not be hammered on with any metallic tool and, in case it is necessary to use scrapers, care should be exercised that the scraper is not sharp enough to cut the metal of the tubes. 4. When replacing the heat exchanger head, use a torque wrench to tighten the bolts/studs[...]

  • Page 11

    QUICKDRAW ® Steam Heater 11 5. Tighten uniformly and in a diametrically staggered pattern as illustrated below: WARNING: It is extremely important to follow a proper tightening sequence. If not followed, the flanges can become cocked and a leak will result. When tightening flanges w ith spiral wound gaskets, if cocking occurs, the result can be de[...]