Smart 40 Indirect Water Heater Manual

661A0300 - Rev B
Installation - Piping
10
Cold Water
Inlet
6
1
12" min.
Heat Trap
Loop
(Optional)
12" min.
Heat Trap
Loop
(Optional)
4
1
5
5
8
9
11
10
M
H
C
7
1. Shut-off valves
4. T&P relief valve
5. Unions
6. Backflow preventer or pressure reducing valve (*)
7. Drain valve
8. Thermal expansion tank (potable)
9. Vacuum breaker
10. Mixing valve (*)
11. Dip tube - Draining per Chart 1
(*) Optional devices may be required by local codes.
Drain Tube Assembly-
Commonwealth of
Massachusetts
Fig. 4:
Commonwealth of
Massachusetts Domestic
Piping SMART Series
Fig. 5:
Smart manual_Smart manual 10/29/14 10:00 AM Page 12