Maytag HRN31250P User Manual
Page 25
25
•
4” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for vent system on all 75 gallon
70,000 and 75,000 BTU/HR models and must be supplied
locally.
FIGURE 46.
ALL 40 AND 50 GALLON 40,000 BTU/HR MODELS -
OPTIONAL 2” VENT PIPING
2” PVC, ABS or CPVC Schedule 40 vent piping:
•
A wire screen to fit 2” PVC, ABS or CPVC Schedule 40 - 45
o
vent cap is supplied with the water heater.
•
A 3” PVC, ABS or CPVC Schedule 40 pipe, minimum length
of 3” (must be supplied locally), to make vent connection at
the blower outlet.
•
A 3” to 2” PVC, ABS or CPVC Schedule 40 reducer (must be
supplied locally).
•
2” and 3” PVC, ABS or CPVC Schedule 40 piping and fittings
are acceptable materials for the vent system on all 40 and
50 gallon 40,000 BTU/HR models and must be supplied
locally.
FIGURE 47.
•
The water heater requires its own (separate) venting
system.
•
It cannot be connected to existing vent piping or chimney.
•
It must terminate vertically to the outdoors.
•
Typical installation(s) in next column.
•
Refer to “Cementing PVC, ABS or CPVC pipe and fittings”
on page 23 and “Connecting Vent to Blower” on page 24.
FIGURE 48.
•
The total vertical and horizontal vent runs cannot exceed the
maximum length with the number of 90
o
elbows as specified
in the tables to follow. If more elbows are required, the venting
distance must be reduced 5 feet for every 90
o
elbow.
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY
3” DIA. VENT
NUMBER OF
MAX. LENGTH (FT.)
90
o
ELBOWS*
70
1
65
2
60
3
55
4
50
5
45
6
75 GALLON 70,000 AND 75,000 BTU/HR MODELS ONLY -
OPTIONAL 4” VENT PIPING
4” DIA. VENT
NUMBER OF
MAX. LENGTH (FT.)
90
o
ELBOWS*
110
1
105
2
100
3
95
4
90
5
85
6
ALL 40 AND 50 GALLON 40,000 BTH/HR MODELS ONLY
3” DIA. VENT
NUMBER OF
MAX. LENGTH (FT.)
90
o
ELBOWS*
115
1
110
2
105
3
100
4
95
5
90
6