Heating-Only Installation (I1) - Sime RVA 47.320 Manual Del Usuario

3.2

HEATING-ONLY INSTALLATION (I1)

Characteristics in outline:
– Cascade management of up to 4 boilers
– Continuous power modulation of the entire cascade with automa-
tic management of the switching on/off of the single modules.
– Self-adjusting to the heat requirements.
– Automatic turnover of the boiler sequence.
– Automatic Summer/Winter switching.
– Climate adjustment with external feeler.
– The boiler is activated only by a signal from the room thermostat.
– The installation pump is activated only by a signal from the room
3.2. 1 Sequence management of up to 4 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
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
R1 536-Ohm-resistor
R2 562-Ohm-resistor
R3 604-Ohm-resistor
R4 649-Ohm-resistor
Scheda caldaia
Main PCB
ALBATROS
connector inserted
Connettore inserito
N
T
L
BOILER 1
CALDAIA 1
PPS BUS
CALDAIA 1 BOILER 1 CALDAIA 2 BOILER 2
R4
Scheda caldaia Main PCB
SB SB
SB
SB
SE SE
SE SE
–
CR CR
+
CR CR
TA ALBATROS TA
TA TA
connector inserted
Connettore inserito
BOILER 2
CALDAIA 2
thermostat.
– 7-day heating program option.
The components of the kit to be used are:
Code Description
RVA 47.320 Central unit for controlling boiler cascade
QAC31 External temperature feeler
QAD21 Feelers for delivery/return temperature of cascade
–– "Albatros" jumper for configuration
–– 4 stickers for boiler numbering (kit)
–– 4 configuration resistors (kit)
SE
CALDAIA 3 BOILER 3 CALDAIA 4 BOILER 4
SM
SR
TA
ALBATROS RVA 47.320
PI
N
L
DO NOT REVERSE THE PPS CONNECTION POLARITY
Non invertire la polarità della connessione PPS
R3
Scheda caldaia Main PCB
SB
SB
SE
SE
–
CR
+
CR
ALBATROS TA
TA
connector inserted
Connettore inserito
BOILER 3
CALDAIA 3
Quantity up to
4 boilers 6 boilers
1
1
2
4
1
1
TA
RVA
47.320
C
SM
SI
SR
PPS BUS
SE
–
+
R2 R1
Scheda caldaia Main PCB
SB
SB
SE
SE
– –
CR
+ +
CR
ALBATROS TA
TA
connector inserted
Connettore inserito
BOILER 4
CALDAIA 4
ES
ENG
FR
2
BE
1
2
6
2
2
PI
M
R
35