lp-32 Rev. 003 Rel. 010 Date 2.22.19
5
Figure 2 - Specifications and Dimensions
36.00°
78.00°
45.00°
36.00°
D
C
E
B
A
INLET/OUTLET
OUTLET
COLD WATER
HOT
T&P
DRAIN
CONTROL
WELL
C
A
E
B
D
DIMENSIONS
MODEL
A
B
C
D
E
TEST
PRESSURE
WORKING
PRESSURE
WEIGHT
(LBS)
CONNECTION
SIZES
SSU-20CB 19-1/4"
4-1/2"
14-1/2"
21-3/4"
27-1/2"
300 PSI
150 PSI
25
3/4" NPT
T
P
N
"
4
/
3
0
4
"
2
/
1
-
9
3
"
4
/
3
-
3
3
"
2
/
1
-
4
1
"
2
/
1
-
4
"
4
/
1
-
9
1
B
C
0
3
-
U
S
S
T
P
N
"
4
/
3
4
6
"
2
/
1
-
9
5
"
4
/
3
-
5
4
"
2
/
1
-
4
1
"
2
/
1
-
4
"
4
/
1
-
9
1
B
C
5
4
-
U
S
S
T
P
N
"
1
0
9
"
2
/
1
-
2
5
"
4
/
3
-
5
4
"
2
/
1
-
4
1
"
2
/
1
-
4
"
4
/
1
-
3
2
B
C
0
6
-
U
S
S
T
P
N
"
2
/
1
-
1
9
2
1
"
2
7
"
4
/
3
-
4
6
"
6
1
"
6
"
4
/
1
-
3
2
B
C
0
8
-
U
S
S
T
P
N
"
2
/
1
-
1
8
7
1
"
2
/
1
-
3
7
"
6
6
"
4
/
1
-
7
1
"
4
/
1
-
7
"
7
2
B
C
9
1
1
-
U
S
S
LP-32-C
02/21/19
N
O
L
L
A
G
9
1
1
/
0
8
60 GALLON
20/30/45 GALLON
02/21/19
THERMOSTAT
LOCATION
A
C
D
B
E
C. Hot Water Outlet
20 - 45 Gallon Storage Tanks:
Use both thread tape and pipe dope
to connect a
3/4
” NPT brass tee. In the run of the brass tee, install a
3/4
” NPT brass T&P long element for hot water heaters, as required
by local codes, but not less than a valve certified for meeting the
requirements for relief valves for water heaters (ANSI Z21.22 and
CAN1-4.4) by a nationally recognized lab that maintains periodic
inspection of production of listed equipment. The T&P valve must be
plumbed down, so discharge will exit at least 6” above the structural
floor and not contact any live electrical parts. In the bottom of the
tee (branch) vertically down, install a
3/4
” NPT x
3/4
” (minimum) tube
adapter. Then install two
3/4
” (minimum) sweat street 90 degree
elbows.
It may be recommended to use a back flow preventer - check local
codes. If a back flow preventer or no return valve is used, a thermal
expansion tank must be installed on the cold water supply between
the tank and valve. If the tank is replacing a tankless coil in the boiler,
disconnect coil plumbing and use the cold water inlet and hot water
outlet pipes for the boiler.
60 Gallon Storage Tanks:
Use both thread tape and pipe dope to
connect a 1” NPT brass tee. In the run of the brass tee, install a 1” NPT
brass T&P long element for hot water heaters, as required by local
codes, but not less than a valve certified for meeting the requirements
for relief valves for water heaters (ANSI Z21.22 and CAN1-4.4) by
a nationally recognized lab that maintains periodic inspection of
production of listed equipment. The T&P valve must be plumbed
down, so discharge will exit at least 6” above the structural floor and
not contact any live electrical parts. In the bottom of the tee (branch)
vertically down, install a 1” NPT x 1” (minimum) tube adapter. Then
install two 1” (minimum) sweat street 90 degree elbows.
80 and 119 Gallon Storage Tanks:
Use 1
1/2
” NPT nominal pipe size. A
T&P port is included on 80 and 119 gallon tanks.
NOTE:
For more information, see “Typical Installation”, page 8.
