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PVI Industries PV500-34 manual

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Table of contents for the manual

  • Page 1

    PV500 - 34 05/03 1 Section 34 INSTALLATION & MAINTENANCE MANUAL FOR QuickDraw  SEMI - INSTANTANEOUS ENERGY: STEAM TO WATER U - TUBE SINGLE - WALL & DOUBLE - WALL HEAT EXCHANGERS DRAIN FLOOR DRAIN FLOOR Typical Construction Figure 34 - 1 1. U - tube Heat Exchanger 10. Potable Water Inlet 2. Steam Inlet ** 11. Check Valve ** 3. Shutoff Val[...]

  • Page 2

    QuickDraw  PV500 - 34 05/03 Section 34 2 STEAM WITH SINGLE - WALL / DOUBLE - WALL WARNING! Setting the temperature selector to higher settings provides hotter water which increases the risk of scald injury. Households with small children or invalids may require a 125°F or lower temperature sett ing to reduce the risk of scald injury. Allow a fe[...]

  • Page 3

    QuickDraw  PV500 - 34 05/03 Section 34 3 STEAM WITH SINGLE - WALL / DOUBLE - WALL (con't ) RELIEF VALVE PIPING The water heater is supplied with a pressure and temperature relief valve, sized in accordance with ASME requirements. Each relief valve should be piped to a suitable floor drain. No reducing coupling or other restriction can be in[...]

  • Page 4

    QuickDraw  PV500 - 34 05/03 Section 34 4 STEAM WITH SINGLE - WALL / DOUBLE - WALL (con't) STEAM VALVES 1. One or more two - position, on - off, electric valves are used to control the flow of steam. The valves will return to the closed position when power is off. This feature will prevent an excessive temperature buildup in the event of a p[...]

  • Page 5

    QuickDraw  PV500 - 34 04/03 5 Section 34 STEAM WITH SINGLE - WALL / DOUBLE - WALL (con't) START - UP PROCEDURE 1. Fill tank with water; open relief valve to purge air from top of tank. Check for plumbing le aks. 2. Push control switch, located on the control box, to activate the steam valve and thermostats. Check steam valve for operation; [...]

  • Page 6

    QuickDraw  PV500 - 34 05/03 6 Section 34 STEAM WITH SINGLE - WALL / DOUBLE - WALL (con't) TROUBLESHOOTING NOTES Problem: 1. No hot water at even low flow a. Cause : Steam valve(s) not opening Solution : Check that electrical coils are energized. If not, trace wiring problem. If so, the valve may be faulty, the steam pressure inadequate to o[...]

  • Page 7

    QuickDraw  PV500 - 34 05/03 7 Section 34 STEAM WITH SINGLE - WALL / DOUBLE - WALL (con't) b. Cause : Steam valve(s) not fully opening Solution : Check steam pressure before and aft er steam valve. The pressure drop should not be more than half of the inlet pressure. Check valve for blockage. Check linkage for adjustment. Check modulating si[...]