Bus Connections Block Diagram 1; Setting Switch S1 Block Diagram 1 - Riello STEEL PRO POWER Installation, Technical Assistance Service And System Management Manual

INSTALLATION
2.7.3

Bus connections Block diagram 1

MANAGING CONNECTIONS
15 16 17 18 19 20 21 22
15 16 17 18 19 20 21 22
MO1
BUS
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
BUS
BUS
2.7.4

Setting switch S1 Block diagram 1

O N
S 1
O F
F
Setting switch S1=OFF
N
28
Block diagram 2: Circuit with thermal modules with their own circulator, connected in cascade. Using the secondary sensor.
SE
Depending
PC
P
SS
PC Thermal module circulator
PB Storage cylinder circulator
PR DHW circulation pump
PI System circulator (high temperature zone)
P2 Zone 2 circulator (low temperature)
P3 Zone 3 circulator (low temperature)
S2 Zone 2 sensor
S3 Zone 3 sensor
SB Boiler sensor
SE Outdoor sensor
SS Primary sensor
PB
PI
ZM
V2 P2 S2
M
SB
SC
V3 P3 S3
M
EAF
EAF
SC Secondary sensor
V2 Mixer valve zone 2
V3 Mixer valve zone 3
ZM Electronic device for zone management (accessory)
EAF Domestic cold water inlet
UAC Domestic hot water outlet
29
INSTALLATION
UAC
PR