2
Pump and expansion vessel characteristics
Components location
Note : The system initial pressure should be over the following value :
System static height (in metre) + 0.7 = Initial pressure (in bar)
10
GV F= high speed by-pass closed
GVO = high speed by-pass open
PV F= low speed by-pass closed
PVO = low speed by-pass open
20
40
60
80
100
120
Pf
140
160
180
200
220
240
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
1,7
1,8
1,9
2,0
Capacité maximale de l'installation (en litres)
80°C
70°C
60°C
50°C
40°C
260
Pression à froid pour le circuit chauffage (en bar)
C liter
System capacity chart
Central heating initial pressure when cold (in bar)
0
4
3
2
1
5
6
100
200
800
700
600
500
400
300
900
1000
1100
l/h
mCE
Débit mini (robinets thermostatiques fermés)
Hauteur manométrique
GV
F
GVO
PV
F
PVO
Pump head available
Minimum flow rate (with all heating thermostatic valves closed)
bar
0
1
3
4
1
2
3
4
5
6
8
11
12
13
14
7
15
10
9
16
1.- Steel chassis complete with expansion vessel (not visible)
2.- Sealed chamber
3.- Burner and heat exchanger assembly
4.- Air / gas connection
5.- 24 V modulating fan
6.- Gas valve
7.- Ignition electrode
8.- Ionisation probe
9.- Ignitor
10.- Combustion products manifold
11.- 24 V transformer
12.- Siphon
13.- Electrical box
14.- Pump
15.- Secondary heat exchanger
16.- Pressure gauge
17.- Three way valve
18.- Automatic air separator and automatic vent
19 - Central heating flowswitch
20.- Domestic hot water flowswitch
21.- Central heating control thermistor
22.- Hot water control thermistor
23.- Overheat sensor
37.- Central heating flow isolating valve
38.- Domestic Hot Water outlet
39.- Gas service tap
40.- Water service tap
41.- Central heating return isolating valve
42 - Silencer
43.- Central heating pressure relief valve
46.- User’s guide
47.- Connecting tails (x5)
48.- Condensate drain
49.- Adjustable by-pass
50.- Right hydraulic assy
51.- Left hydraulic assy
23
20
21
17
19
18
22
23
39
40
41
38
37
43
46
47
48
49
50
51
42
