Installation
24
Instruction manual DR-FC
3
is
3.5
Installation diagram
The figure shows the Installation diagram. This diagram is referred to in the
sections describing the actual connection procedure.
Installation diagram
Legend Vented and unvented
Unused numbers are not applicable
1.
pressure relief valve
(mandatory if the mains water
pressure is too high)
3.
T&P valve (mandatory)
4.
stop valve (recommended)
5.
non-return valve (mandatory)
6.
circulation pump (optional)
9.
drain valve
10.
manual gas valve
(mandatory)
11.
service stop valve
12.
temperature gauge (optional)
13.
condensation drain
14.
draw-off points
15.
expansion valve (mandatory)
16.
expansion vessel
(mandatory)
17.
3-way aeration valve
(recommended)
18.
cold water head tank
19.
float switch
A.
cold water supply
B.
hot water supply
C.
circulation pipe
D.
gas supply
E.
overflow pipe
H.
overflow protection
IMD-0780 R0
T
B
A
4
17
E
H
C
C
10
3
D
13
9
4
6
4 5
14
14
14
11
4
18
12
19
A
4
5
C
1
15
16
13
9
4
5
6
4
14
14
14
11
10
D
B
3
T
12
UNVENTED
VENTED
Summary of Contents for DR-FC 120
Page 2: ......
Page 4: ......
Page 6: ...4 Instruction manual DR FC gis...
Page 10: ...Table of contents 8 Instruction manual DR FC...
Page 58: ...Shutting down 56 Instruction manual DR FC 10 gis...
Page 70: ...Service program 68 Instruction manual DR FC 12 is...
Page 84: ...Service interval 82 Instruction manual DR FC 14 is...
Page 90: ...Warranty 88 Instruction manual DR FC 16 s...
Page 93: ...Instruction manual DR FC 91 is...
Page 96: ...Appendices 94 Instruction manual DR FC 17 is...
Page 98: ...Instruction manual DR FC 96...
