PVI PV 6684 Specifications

Domestic water heaters vertical tube, gas/oil fired water heaters with nickel-plated storage tanks

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SPECIFICATION FOR DOMESTIC WATER HEATERS
Vertical Tube, Gas/Oil Fired Water Heaters with Nickel-Plated Storage Tanks
Furnish and install MAXIM power combustion gas/oil water heater(s) as manufactured by PVI Industries, L.L.C.
of Fort Worth, Texas. Supply quantities and model numbers as indicated on the plumbing schedule.
The water heater will operate at 83% thermal efficiency. The water heater will comply with paragraph 7.2.4.4,
the thermal efficiency, the standby loss, and all other requirements of ASHRAE 90.1-1999.
The water heater will be a vertical fire tube design that is constructed and stamped in accordance with Section IV,
Part HLW of the ASME code. Both the storage and heating sections of the water heater will be National Board
Registered for a working pressure of 150 psi and will be pressure tested at 1-1/2 times working pressure. The fireside of
the heating surfaces will be of boiler-grade steel. The waterside of the heating tubes will be sealed in copper. The
heating tubes will be rolled, beaded, and seal welded into the tube sheets. The combustion side of the tube sheet will be
insulated by a layer of ceramic fiber that will protect the tube sheet from both thermal stresses and failure that can result
from the accumulation of scale and precipitants.
The tank will be a plated with electroless nickel (EN). Plating will occur after the pressure vessel is completely
fabricated and all welding is completed. The EN plating will be a high-phosphorus (10%) and nonporous composition
suitable for submersion service (ASTM B733 standard may be used as a guideline). The finished lining will not require
sacrificial anode rods. For additional protection against galvanic corrosion, which may occur within the potable water
system, the EN plating may have a high-dielectric-strength polymer overcoat.
Combustion will be provided by a forced-draft combination gas/oil burner with gas and oil components meeting the
following agency requirement for the input specified:
___ UL (standard)
Water heater will be a category I, non-condensing appliance utilizing type B venting material. Burner will be
configured to accept ____ room air _____ direct inlet combustion air.
PV 6684 5/02

Gas and Electrical Consumption

Pressure Vessel and Heating Surfaces

Tank Lining

Burner and Venting

___ FM
___ IRI
(continued)
1
___ Other ______________________

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Summary of Contents for PVI PV 6684

  • Page 1 Vertical Tube, Gas/Oil Fired Water Heaters with Nickel-Plated Storage Tanks Furnish and install MAXIM power combustion gas/oil water heater(s) as manufactured by PVI Industries, L.L.C. of Fort Worth, Texas. Supply quantities and model numbers as indicated on the plumbing schedule.
  • Page 2 The heater will be have an independent test laboratory listing to safety standard UL 795 or ANSI Z21.10.3. The water heaters will be manufactured by a company that has achieved certification to the ISO 9001 International Quality System. PV 6684 5/02 (continued) Safety Controls...

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