Heating Installation With Combined Boiler (I2) - Sime RVA 47.320 Manual Del Usuario

3.2.2 Sequence management of up to 6 boilers for heating only
Hydraulic circuit
KEY
SI Hydraulic separator
SM Cascade delivery temperature feeler (QAD21)
SR Cascade return temperature feeler (QAD21)
SE External temperature feeler (QAC31)
PI Installation pump
TA Room thermostat
C ALBATROS RVA47.320 regulator
PPS BUS
CALDAIA 1 BOILER 1
Wiring diagram
KEY
SM Cascade delivery temperature feeler (QAD21)
SR Cascade return temperature feeler (QAD21)
SE External temperature feeler (QAC31)
PI Installation pump
TA Room thermostat
R2 562-Ohm-resistor
R3 604-Ohm-resistor
R4 649-Ohm-resistor
R4
Scheda caldaia
Main PCB
SB
SB
SE
SE
–
CR
+
CR
ALBATROS TA
TA
Connettore inserito
Connector inserted
N
T
L
BOILER 1
CALDAIA 1
36
C (SLAVE)
RVA
47.320
CALDAIA 3
CALDAIA 2 BOILER 2 BOILER 3
N
L
R3
Scheda caldaia Main PCB Scheda caldaia
Main PCB
SB
SB
SE
SE
–
CR
+
CR
ALBATROS TA
ALBATROS
TA
Connettore inserito Connettore inserito
Connector inserted
Connector inserted
BOILER 2 BOILER 3
CALDAIA 2 CALDAIA 3
SE
LPB BUS
PPS BUS
CALDAIA 1 CALDAIA 2
BOILER 1 BOILER 2
PPS BUS
–
+
RVA 47.320 (SLAVE)
R2
Scheda caldaia Main PCB
SB SB
SB SB
SE SE
SE SE
–
CR CR
+
CR CR
TA ALBATROS TA
TA TA
Connettore inserito
Connector inserted
BOILER 1
CALDAIA 1
C (MASTER)
RVA
47.320
SI
CALDAIA 3
BOILER 3
SR
SE
SM
SR
TA
–
RVA 47.320 (MASTER)
PI
DO NOT REVERSE THE PPS CONNECTION POLARITY
Non invertire la polarità della connessione PPS
R4 R3
Scheda caldaia
Main PCB
SB
SB
SE
SE
– –
CR
+ +
CR
ALBATROS TA
TA
Connettore inserito
Connector inserted
BOILER 2
CALDAIA 2
TA
SM
PI
M
R
LPB BUS
PPS BUS
+
R2
Scheda caldaia
Main PCB
SB
SB
SE
SE
–
CR
+
CR
ALBATROS TA
TA
Connettore inserito
Connector inserted
BOILER 3
CALDAIA 3