18
Venting continued-
TABLE 3
3 inch
(7.6 cm)
VENT CONNECTOR LENGTHS FROM INSIDE WALL FOR
LOW GROUND CLEARANCE INSTALLATIONS
Terminating
# of
Elbows
(excl.
vent
term.)
Max Straight
Length
ft
(m)
Min
straight
Length
ft
(m)
55 and 75 gal.
(2) 90
Elbows with (1) 90
Elbow
1
30
(9.1)
5
(1.5)
(2) 90
Elbows with (1) 90
Elbow
2
25
(7.6)
5
(1.5)
(2) 90
Elbows with (1) 90
Elbow
3
20
(6.1)
5
(1.5)
(2) 90
Elbows with (1) 90
Elbow
4
15
(4.6)
5
(1.5)
TABLE 4
4 inch
(10.2 cm)
VENT CONNECTOR LENGTHS FROM INSIDE WALL
FOR LOW GROUND CLEARANCE INSTALLATIONS
Terminating (Reduce 4 inch to
3 inch)
(Reduce 10.1 cm to 7.6 cm)
# of
Elbows
(excl.
vent
term.)
Max straight
Length
ft
(m)
Min
straight
Length
ft
(m)
55 and 75 gal.
(2) 90
Elbows with (1) 90
Elbow
1
160
(48.8)
10
(3.1)
(2) 90
Elbows with (1) 90
Elbow
2
155
(47.2)
10
(3.1)
(2) 90
Elbows with (1) 90
Elbow
3
150
(45.7)
10
(3.1)
(2) 90
Elbows with (1) 90
Elbow
4
145
(44.2)
10
(3.1)
(2) 90
Elbows with (1) 90
Elbow
5
140
(42.7)
10
(3.1)
HIGH ALTITUDE INSTALLATIONS FOR ELEVATIONS OVER 2,500 FEET
(762 m)
ABOVE SEA LEVEL
The capacity of the induced draft blower declines with increasing altitude due to
a reduction in the air density. In order to assure safe and reliable performance
of the water heater, contact the supplier for high altitude kit.
Summary of Contents for TTW URG2PV75H6N
Page 28: ...28 Wiring Diagram Figure 6 ...
Page 30: ...30 Lighting and shutdown instructions ...
Page 40: ...40 NOTES ...