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DRE
Dimensions
DRE
Installation diagrams
1 Pressure reducing valve
3 T&P valve
4 Stop valve
5 Non-return valve
6 Circulation pump
9 Drain valve
11 Service valve
14 Hot water tap
15 Expansion valve
16 Expansion vessel
17 Three way valve
18 Water cistern
19 Float valve
A Cold water supply
B Hot water outlet
C Circulation pipe
E Overow pipe
H Expansion pipe
A.O. Smith unvented
system kits utilise
combination valves
Further installation and
connection details can be
found in the Installation
& Commissioning Manual.
A 1460 1580 1600
B 1420 1540 1570
D 560 640 750
E 690 790 910
M 125 125 125
R 125 125 125
S 1230 1335 1380
1 Cold water 1
1
/4-14 NPT
2 Hot water 1
1
/4-14 NPT
4 Tank drain valve
3
/4-14 NPT
5 T&P valve
3
/4-14 NPT
6 Anode connection Rp
3
/4
Dimensions in mm.
DRE 52
DRE 80
DRE 120
Vented
Unvented