LOW NOx MAXIM
▪ PACKAGED GAS WATER HEATER
POLYSHIELD
®
POLYMER-LINED STORAGE TANK
PVI reserves the right to change
the design and specification
without notice.
PV 6377 11/07
PVI INDUSTRIES, LLC
FORT WORTH, TEXAS 76111
(800) 784-8326 ▪ (817) 335-9531 ▪ www.pvi.com
STANDARD FEATURES AND EQUIPMENT
• 82% thermal efficiency
• SCAQMD compliant
• NOx emissions certified at <55 ppm at 3% 0
2
and/or less than 40 nanograms per joule (199 to 399 MBtu/h)
• NOx emissions certified at <30 ppm at 3% 0
2
(above 399 MBtu/h)
• POLYSHIELD
®
polymer-lined tank with 5-year warranty, three-year scale failure warranty and one-year cost-free service policy
• Nonferrous, removable fittings at all tank connections
• Copper-clad steel firetubes
• SCALEGUARD
®
tubesheet protection
• Upper and lower immersion operating thermostats
• Immersion temperature limiting device (high limit control)
• ASME-rated temperature and pressure relief valve
• Drain valve
• Handhole tank cleanout
• Power combustion burner
• Spark ignition
• Electronic combustion sequencer and flame safeguard with pre-purge
• Combustion sequence indicating lights (> 399,000 Btu/h)
• Differential pressure air flow switch
• Second main gas valve (> 399,000 Btu/h)
• Compliant with ASHRAE 90.1 for thermal efficiency and standby loss
• Fiberglass insulated tank
• Draft regulator (barometric damper)
• Steel jacket panels with industrial-grade finish
• Factory-authorized start up
• ASME stamped—150 psi MAWP
• National Board Registered for 150 psi working pressure
• UL listed to safety standard UL 795 “Commercial-Industrial Gas Heating Equipment”
• FM compliant
OPTIONAL FEATURES AND EQUIPMENT
Long-life service policy
AGA-rated temperature and pressure relief valve(s)
2,500,000 Btu/h FM controls package. Adds electronic low-water cutoff, manual-reset high limit, single-try firing control and high-low
gas pressure switch. (not required for FM compliance below 2,500,000 Btu/h) (available only on 540,000 and 650,000 Btu/h)
CSD-1 / IRI compliant components include manual reset electronic low water cut off, manual reset temperature limiting device and
Hi-Lo gas pressure switch (as required)
Electronic combustion sequencer and flame safeguard with pre– and post-purge
Electronic low-water cutoff
Manual-reset, temperature limiting device
DUO-SET™ controls for dual-temperature applications
Dial temperature and pressure gauges
Tridicator
Alarm bell with silencing switch
Seven-day time clock
Digital seven-day time clock with battery backup
Air intake assembly for remote combustion air (requires field connection to ductwork supplied by others)
Consult factory for other codes
See complete warranty and/or service policy for details
(2 pages)
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