10
Main components
1 High temperature system return (M 1”)
2 Low temperature system delivery (M 1”)
3 Domestic hot water delivery (M 1/2”)
4 Refrigerant circuit HR Booster gas line 2
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
5 Refrigerant circuit HR Booster liquid line 2
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
6 High temperature system delivery (M 1 “)
7 Low temperature system return (M 1”)
8 Water mains inlet (M 1/2 ”)
9 Booster gas line HR refrigeration circuit 1
(5/8” Booster 7.8 / 9.0 - 3/8” Booster 3.0)
10 Liquid line Booster HR refrigerant circuit 1
(1/4” Booster 3.0 / 7.8 - 3/8” Booster 9.0)
11 Solar thermal collector delivery with forced circulation (M 3/4”)
12 Solar thermal collector return with forced circulation (M 3/4”)
13 System technical water pressure gauge
14 System filling cock
15 Automatic jolly valve for system air vent
16 Additional heat generator water delivery
17 Additional heat generator water return
18 8 liter system expansion vessel
19 8 liter solar expansion vessel (optional)
20 Integrative electric heater 2 kW
21 Zone 1 system circulator
22 Zone 2 system circulator (optional)
23 Mix valve for radiant system (optional)
24 System safety valve 3 bar
25 UNIT 2 PLUS solar station (optional)
26 CONTROL MULTI 06 S solar control unit (optional)
27 System drain cock
28 Digital Booster 1 control unit
29 Booster 2 digital control unit
30 Integrative electric heater ON-OFF switch
31 EMERGENCY / INTEGRATION diverter integrative electrical
resistance
32 System circulator/s ON-OFF switch
33 Solar control unit ON-OFF switch (optional)
4.3 INDOOR UNIT HUB RADIATOR PLUS / PLUS SOLAR
1
3
4
5
8
9
10
11
12
17
16
15
2
6
7
11
13
7
6
2
1
14
12
28
30
25
26
20
27
19
18
21
22
24
23
18
31
32
33
29
28
30
31
32
33
29
26