Specifications
70
22"
9"
15"
A
12
11
Fig. 45: Rear View
Fig. 44: Side View
5"
11.5"
14"
21"
C
6
3
Domestic
cold
Domestic
hot
1
2
B
8"
6.5"
3.5"
5
4
10
1.
Primary circuit, ø 1” NPT
2.
Primary circuit drain valve connection, ø 1/2” NPT
3.
Domestic temperature/pressure relief valve (150
psi), ø 3/4” NPT
4.
Primary circuit & pressure relief valve (30 psi), ø 1”
NPT
5.
Domestic cold water inlet, ø 3/4” NPT
6.
Hot water outlet & secondary thermostat sensor, ø
3/4” NPT
7.
Manual reset safety sensor & pressure indicator sen-
sor, ø 3/4” NPT
8.
Primary thermostat sensor, temperature indicator
sensor and automatic reset safety sensor, ø 1/2”
NPT
9.
L.W.C.O. pressure sensor, ø 1/2” NPT (shown as
item 6 on page 66)
10. Primary circuit & air vent, ø 1” NPT
11. Gas Supply
12. 120 V Electric Supply
10
8
3
4
5
6
7
Fig. 46: Top View
