22
INSTALLER
INSTALLER
Combination with multiple condensing boilers
15
3
10
12
3
3
15
6
3
3
3
11
3
3
3
3
3
10
9
5
7
7
7
SP
M
8
3
3
16 3
3
3
3
16 3
3 16
16
3
17
4
5
3
TC
8
13
3
8
13
3
13
14
FLOW
FLOW
FLOW
COLD
WATER
INLET
CENTRAL HEATING
RETURN
LT (*)
RETURN
LT (*)
RETURN
LT (*)
RETURN
CENTRAL
HEATING
SUPPLY
MAKE-UP
WATER
1
2
1
2
1
2
1
Boiler
2
Burner
3
Disconnect valves
4
Central heating system pump
5
Non-return valves
6
Automatic vent valve
7
Boiler safety valve
8
Boiler drain cock
9
Y filter
10
Pressure reducer
11
CH expansion vessel
12
Water softener filter
13
Siphon
14
Condensate outlet
15
Boiler drain
16
Inspection valve
17
Air separator
M
Pressure gauge
SP
Cascade control panel
TC
Temperature control
(*)
LT = Low temperature
