PVI Industries Water Heater 20 N 125A MXS User Manual

MAXIM • PACKAGED GAS WATER HEATER  
NICKELSHIELD® NICKEL-PLATED STORAGE TANK  
125 GALLON TANK SERIES  
20 N 125A-MXS 27 N 125A-MXS 40 N 125A-MXS 54 N 125A-MXG 72 N 125A-MXG 80 N 125A-MXG  
MODEL NUMBER  
GPH Recovery at 40° to 120° F  
GPH Recovery at 40° to 140° F  
Input Btu/h  
245  
330  
490  
670  
900  
1000  
195  
260  
390  
540  
720  
800  
199,000  
270,000  
399,000  
540,000  
720,000  
800,000  
*
*
Min. inlet flow gas pressure " W.C.  
Max static gas pressure “W.C.  
Cold Inlet - NPT  
Hot Outlet - NPT  
Drain - NPT  
I - Beam Skids  
Overall Depth  
Overall Height  
Flue Outlet Diameter  
Gas Inlet - NPT  
Motor HP 120 V, 1Ø, 60 Hz.  
Motor Amps  
Height to Outlet  
Height to Inlet  
Approx. Shipping Weight - lbs  
5.5  
9
2
2
1
5.5  
9
2
2
1
5.5  
9
2
2
1
4.5  
14  
2
2
4.5  
14  
2
2
1
4.5  
14  
2
2
1
A
B
C
D
E
F
G
H
J
1
3 x 34-1/2  
45  
3 x 34-1/2  
45  
3 x 34-1/2  
45  
3 x 34-1/2  
3 x 34-1/2  
52  
3 x 34-1/2  
54  
53  
82  
8
1
1/3  
8
73  
36  
1260  
75  
5
1/2  
1/6  
1.75  
65  
28  
75  
6
3/4  
1/6  
1.75  
65  
28  
75  
7
3/4  
1/6  
1.75  
65  
28  
82  
10  
1-1/4  
1/3  
8
73  
36  
1370  
82  
10  
1-1/4  
1/3  
8
73  
36  
1390  
K
L
M
1020  
1070  
1130  
ASHRAE 90.1 compliant.  
Models with suffix “MXS” are registered as low NOx water heaters in California and Texas  
* The information presented is for natural gas 0.6 S.G. – For operation with propane (LP gas), consult the factory.  
* For gas pressures outside of this range, consult factory.  
Dimensions are in inches unless otherwise specified.  
For standard and optional equipment, see form # PV 6137.  
1. Control Enclosure  
2. ASME Temperature &  
Pressure Relief Valve  
3. 3” NPT Handhole  
STANDARD ELECTRICAL CONNECTIONS  
CONTROL VOLTAGE: 120V, 1Ø, 60 Hz, 2 amps  
SEE ABOVE CHART FOR BLOWER MOTOR AMPS  
VENTING REQUIREMENTS  
-.02" TO -.06" W.C. (negative pressure)  
TYPE B VENTING  
THE ENTIRE VENT SYSTEM SHOULD NEVER BE SIZED BASED  
UPON THE VENT CONNECTION DIAMETER EXCLUSIVELY.  
FOR PROPER VENT SIZING, CONSULT THE NATIONAL FUEL  
GAS CODE UNDER “FAN-ASSISTED”  
PVI RESERVES THE RIGHT TO CHANGE THE DESIGN AND  
SPECIFICATION WITHOUT NOTICE.  
Product is patented in the U.S., Canada, and Mexico.  
PVI INDUSTRIES, LLC  
FORT WORTH, TEXAS 76111  
PV 6139 08/07  
(800) 784-8326 www.pvi.com  
 

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