26
2.14. W
ATER
C
IRCUIT
D
IAGRAM
A
B
C
D
E
F
H
G
bar
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
21
20
L
EGEND
:
1
-
Air release valve
2
-
Main heat exchanger
3
-
Burner
4
-
Fan
5
-
Air / Gas Mixer
6
-
Gas valve
7
-
Overheat thermostat
8
-
Central heating flow temperature probe
9
-
Secondary heat exchanger
10 -
Motorised valve
11 -
Low water pressure switch
12 -
Domestic hot water temperature probe
13 -
Condensate Trap
14 -
Drain valve
15 -
Automatic By-pass
16 -
Domestic hot water flow switch
17 -
Pressure gauge
18 -
Safety valve
19 -
Circulation pump with automatic
air release valve
20 -
Central heating return temperature probe
21 -
Expansion vessel
A
-
Central Heating Flow
B
-
DHW Outlet
C
-
Gas Inlet
D
-
Cold Water Inlet
E
-
Central Heating Return
F
-
Safety valve discharge
G
-
Condensate trap
H
-
Condensate discharge
F
IG
. 2.30
Summary of Contents for ACO 35 MFFI
Page 66: ...66 ...
Page 69: ...69 11 BENCHMARK COMMISSIONING CHECKLIST ...
Page 70: ...70 12 SERVICE INTERVAL RECORD ...
Page 71: ...71 ...