Il collegamento elettrico va eseguito
all'interno del pannello comandi della caldaia.
Per i dettagli consultare lo schema elettrico
della caldaia
Per le pompe vedere i morsetti di appoggio in caldaia
VZn
RLn
TAn
VZ1
RL1
TA1
N
L
SC
A6
MD
MB
M
DB
B9
B10/70/4
B3
B2
H1
SE
F1
Q1
Q3/y3
L
N
N
L
ALBATROS RVA43.222
P1
E1
K5
F5
K4
F4
SM
CRL1
CRLn
SC
A6
MD
MB
M
DB
B9
B10/70/4
B3
B2
H1
F1
Q1
Q3/y3
L
N
N
L
ALBATROS RVA43.222
P2
E1
K5
F5
K4
F4
SR
SC
A6
MD
MB
M
DB
B9
B10/70/4
B3
B2
H1
F1
Q1
Q3/y3
L
N
N
L
ALBATROS RVA43.222
P3
E1
K5
F5
K4
F4
Verso comandi accensione
I° e II° stadio bruciatore
vedere schema elettrico caldaia
–+ –+ –+
LPB BUS
Non invertire la polarità della connessione
PI
C
2
1
TMIN
MASTER
SLAVE 1
SLAVE 2
Verso comandi accensione
I° e II° stadio bruciatore
vedere schema elettrico caldaia
Verso comandi accensione
I° e II° stadio bruciatore
vedere schema elettrico caldaia
3.5.1 SYSTEM I3 - 2/3 boilers in cascade with heating only and zone valves
Hydraulic circuit
LEGEND
SM Cascade delivery probe (QAD21)
SE Outdoor temperature probe (QAC31)
PI System pump
SI Hydraulic separator
SR Cascade return probe (QAD21)
PI
1-2-3 Boiler pumps
SC Boiler delivery probe (QAZ21)
VZ1-N Zone valves
TA1-N Room thermostats
RL1-N Dual contact zone relays
TMIN Minimum cascade return thermostat
BP Bypass
Wiring diagram
LEGEND
SM Cascade delivery probe (QAD21)
SE Outdoor temperature probe (QAC31)
PI System pump
SR Cascade return probe (QAD21)
PI
1-2-3 Boiler pumps
SC Boiler delivery probe (QAZ21)
VZ
1-n Zone valves
TA
1-n Room thermostats
RL
1-n Dual contact zone relays
CRL1-n Clean zone contacts
TMIN Minimum cascade return thermostat
Wiring must be performed inside the boi-
ler’s control panel. For details please refer
to the boiler’s wiring diagram.
Do not invert connection polarity
Toward burner stage 1 and 2 ignition
commands Refer to boiler wiring
diagram.
Toward burner stage 1 and 2 ignition
commands Refer to boiler wiring
diagram.
Toward burner stage 1 and 2 ignition
commands Refer to boiler wiring
diagram.
For pumps, refer to supporting terminals on the boiler