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INSTALLATION
2.7.5
Electrical power connections Block
diagram 2
MANAGING CONNECTIONS
101 102 103 104 105 106 107 108 109 110 111 112
L
N
L
L
N
L
N
L
N
101 102 103 104 105 106 107 108 109 110 111 112
MO2
101 102 103 104 105 106 107 108 109 110 111 112
PB
PI
PB Storage cylinder circulator
PI System circulator (high temperature zone)
DEPENDING CONNECTIONS
(only if the depending zone is connected)
113 114 115 116 117 118
CLOSE
OPEN
N
N
L
L
L
113 114 115 116 117 118
MO2
113 114 115 116 117 118
P2
V2
P2 Zone pump 2
V2 Zone Mix Valve 2 (116-117 close; 117-118 open)
ACCESSORY CONNECTIONS FOR ADDITIONAL ZONE
MIX VALVE
PUMP
SAFETY
ROOM
FLOW
BUS
THERMOSTAT
THERMOSTAT
SENSOR
L
N
L
L
N L
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
V3
P3
V3
P3
P3 Zone 3 circulator (low temperature) (12-13-14)
V3 Mixer valve zone 3 (9-10 closing; 10-11 opening)
2.7.6
Connecting sensors/room thermostats
Diagram 2
MANAGING CONNECTIONS
1
2
3
4
5
6
7
8
9 10
1
2
3
4
5
6
7
8
9
10
MO1
1
2
3
4
5
6
7
8
9
10
TA
SB
SS
TA Room thermostat
SB Boiler sensor
SS Primary probe
SE Outdoor sensor
SC Secondary probe
DEPENDING CONNECTIONS
(only if the depending zone is connected)
23 24 25 26 27 28
23 24 25 26 27 28
M2D1
23 24 25 26 27 28
TA
S2
TA Zone Thermostat
S2 Zone 2 sensor
ACCESSORY CONNECTIONS FOR ADDITIONAL ZONE
MIX VALVE
PUMP
SAFETY
ROOM
FLOW
BUS
THERMOSTAT
THERMOSTAT
SENSOR
L
N
L
L
N
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
S3
TA
S3
TA Zone Thermostat
S3 Zone 3 sensor
30
2.7.7
Bus connections Block diagram 2
MANAGING CONNECTIONS
11 12 13 14
11 12 13 14
MO1
11 12 13 14
SE
SC
ACCESSORY CONNECTIONS FOR ADDITIONAL ZONE
SAFETY
ROOM
FLOW
THERMOSTAT
THERMOSTAT
SENSOR
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
N L
N
2.7.8
Setting switch S1 Block diagram 2
15 16 17 18
19 20 21 22
15 16 17 18
19 20 21 22
Setting switch S1=OFF
BUS
MIX VALVE
PUMP
BUS
L
N
L
L
N L
N
BUS
BUS
31
INSTALLATION
O N
S 1
O F
F
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