SPECIFICATION FOR DOMESTIC WATER HEATERS
Power Combustion, Low Nox,
Furnish and install MAXIM power combustion gas 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 82% thermal efficiency when tested by an independent laboratory 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
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
Tank Lining
The lining will:
be applied only after the tank is completely fabricated and all welding is completed. consist of multiple applications of
be
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
___ 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 or 40 nanograms per joule (below 400,000 Btu). Water heater will be a category I,
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