Beretta EXCLUSIVE R Installer And User Manual page 44

EXCLUSIVE
A
7
8
R M G
9
9a
44
boiler support
plate (F)
RB MB
M heating delivery
MB water tank delivery 3/4" M
G gas connection
RB water tank return
R
heating return
10
V1
11
12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
- A B +
TA TBOL TBT SE
1-2-3-4 (- A B +)
5-6 TA
7-8 TBOL
9-10 TBT
11-12 SE
13-14 OT+
15-16 SBOL
17-18 X1
19-20 X2
3/4" M
3/4" M
3/4" M
3/4" M
13
OT+ SBOL X1
D
Voltage free contact input
Bus 485
Room thermostat (contact without voltage)
Water tank thermostat
Low temperature limit thermostat
Outdoor temperature sensor
Open therm
Water tank probe
Not used
Not used
B
C
A
V
M20
X2