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8
1 7 Coupling configuration
SZ2
VM
SB
PZ1
SZ1
COMPENSATORE
IDRAULICO
COMPENSATORE
IDRAULICO
50°C
30°C
80°C
60°C
SZ1
SZ2
VM
SB
PZ1
PB
SE
PB
SE
PZ2
PZ2
POWER PLUS BOX 200
POWER PLUS BOX 200
POWER PLUS BOX 150
SZ1
Delivery manifold sensor
SZ2
Low system temperature sensor
SB
Boiler sensor
SE
Outdoor sensor
PZ1
Zone 1 circulator (high temperature)
PZ2
Zone 2 circulator (low temperature)
PB
Boiler circulator
VM
Mixer valve
NOTE: it is possible to couple up to a maximum of 4 Power Plus Box with a cascade connection.