Riello TAU Unit 50 Installation And Maintenance Manual page 82

CONFIGURATION OF CASCADED THERMAL UNITS
ZONE MANAGEMENT ELECTRONIC DEVICE
ZM
15
N
14
13
L
12
11 L
10 N
9
L
8
7
6
5
4
3
2
ZM Zone management electronic device
L Live
N Neutral
Earth/ground
P3 Zone 3 pump (low temperature)
V3 Mixer valve zone 3
S3 Zone 3 sensor
TA Room thermostat
BUS 1 Managing / Zones Bus
P3
M V3
managing
BUS 1
terminals
7-8
S3
TA
82