PVI Industries Boiler PV 6454 3 04 1 User Manual

SPECIFICATION FOR DOMESTIC WATER HEATERS  
Power Combustion, Low NOx Gas-Fired Water Heaters with Nickel-Plated Storage Tanks  
Furnish and install TURBOPOWER® gas low NOx water heater(s) as manufactured by PVI Industries, LLC  
of Fort Worth, Texas. Supply quantities and model numbers as indicated on the plumbing schedule.  
Gas and Electrical Consumption  
The water heater will operate at a minimum of 83% thermal efficiency when tested to ANSI Z21.10.3. 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.  
Pressure Vessel and Heating Surfaces  
The water heater will be constructed and stamped in accordance with Section IV, Part HLW of the ASME code.  
The storage section of the water heater will be National Board Registered for a working pressure of ____ 125 psi  
(standard) or ____ 150 psi and will be pressure tested at 1-1/2 times working pressure. The heating section 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 heat exchanger will be a firetube design with the combustion chamber and all heating surfaces completely  
water-backed. The fireside of the combustion chamber will be of boiler-grade steel. The waterside of the combustion  
chamber will be non-ferrous. The fire tubes will be solid copper. The heating surfaces will be removable by unbolting  
from the pressure vessel, allowing 100% access to waterside surfaces. The tank will be accessible in the field through a  
manway sized opening, allowing access to 100% of interior surfaces. All tank connection fittings will be nonferrous and  
removable from the tank.  
Tank Lining  
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). For additional protection against  
galvanic corrosion, which may occur within the potable water system, the electroless nickel plating may have a high-  
dielectric-strength polymer overcoat.  
The lined tank will not require sacrificial anode rods and none will be used. Water heaters that use anode rods in a  
vessel that contains non-ferrous heating surfaces will not be acceptable.  
Burner and Venting  
Combustion will be provided by a forced-draft power burner with a gas train meeting the following agency  
requirement for the input specified:  
___ UL (standard)  
___ FM  
___ IRI  
___ Other ______________________  
Burner and heating section will be certified to operate with NOx emissions not to exceed 30 ppm corrected to 3% O2  
(at or above 400,000 Btu) and 55 ppm corrected to 3% O2 (below 400,000 Btu). Water heater will be a category I, non-  
condensing appliance. It will be UL listed for use with non-pressurized, type B venting material.  
(continued)  
PV 6454 3/04  
1
 

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