PVI Industries Water Heater PV 6685 2 05 1 User Manual

SPECIFICATION FOR DOMESTIC WATER HEATERS  
Vertical Tube, Gas/Oil Fired Water Heaters with Polymer-Lined 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.  
Gas and Electrical Consumption  
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.  
Pressure Vessel and Heating Surfaces  
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.  
Tank Lining  
The lining will:  
be applied only after the tank is completely fabricated and all welding is completed.  
consist of multiple applications of high-temperature fluoropolymer.  
be third-party tested to and comply with NSF 61 standard.  
be continuous and nonporous with no interruptions or discontinuities.  
require no sacrificial anode rods for protection.  
Burner and Venting  
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)  
___ FM  
___ IRI  
___ Other ______________________  
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.  
(continued)  
PV 6685 2/05  
1
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