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MAXIM• PACKAGED GAS/OIL WATER HEATER
NICKELSHIELD® NICKEL-PLATED STORAGE TANK
250 GALLON TANK SERIES
MODEL NUMBER ► 40-2.8 N 250A-PGO 54-3.8 N 250A-PGO 72-5.0 N 250A-PGO
GPH Recovery at 40° to 120° F 500 670 900
GPH Recovery at 40° to 140° F 400 540 720
Input Btu/h 400,000 540,000 720,000
Input, gph #2 Fuel Oil 2.8 3.8 5.0
A Cold Inlet - NPT 2 2 2
B Hot Outlet - NPT 2 2 2
C Drain - NPT 1 1 1
D I - Beam Skids 3 X 45 3 X 45 3 X 45
F Overall Height 75 82 82
G Flue Outlet Diameter 7 8 10
H Gas Inlet 1 1 1
Minimum Inlet Flow Gas Pressure 4.5" W.C. 4.5" W.C. 6.5" W.C.
Maximum Static Gas Pressure 14" W.C. 14" W.C. 14" W.C.
J Oil Inlet 1/2 1/2 1/2
Motor HP 120 V, 1Ø, 60 Hz. 1/3 1/3 1/2
Motor Amps 8 8 10
L Height to Outlet 65 73 73
M Height to Inlet 28 36 36
N Overall Depth 83 83 83
P Depth of Burner Housing 31 31 31
Approx. Shipping Weight - lbs 1520 1600 1710
Recoveries based on 83% thermal efficiency. ASHRAE 90.1 compliant.
Dimensions are in inches unless otherwise specified.
For standard and optional equipment, see form # PV 6679
1. Control Enclosure
2. ASME Temperature &
Pressure Relief Valve
3. 3” NPT Handhole
4. Door swing requires 18"
in front of the water heater
STANDARD ELECTRICAL REQUIREMENTS
CONTROL VOLTAGE: 120V, 1Ø, 60 HZ., 2 AMPS
MOTOR VOLTAGE: 120V, 1Ø, 60 HZ.
SEE ABOVE CHART FOR BLOWER MOTOR AMPS
THE ENTIRE VENT SYSTEM SHOULD NEVER BE SIZED BASED
UPON THE VENT CONNECTION DIAMETER EXCLUSIVELY.
FOR PROPER VENT SIZING, CONSULT THE NATIONAL FUEL
THE DESIGN AND SPECIFICATION WITHOUT NOTICE
PVI INDUSTRIES, LLC
FORT WORTH, TEXAS 76111
PV 6676 01/05 (800) 784-8326 • www.pvi.com
VENTING REQUIREMENTS
-.02" TO -.06" W.C. (NEGATIVE PRESSURE).
GAS CODE UNDER "FAN-ASSISTED".
PVI RESERVES THE RIGHT TO CHANGE
Product is patented in the U.S., Canada, and Mexico.