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7217402.01 - en
INSTRUCTIONS FOR FITTERS
A relay is available for the external auxiliary controls. Connect terminals 1-2-3 of connector
CN1
on the relay board to the
respective terminals 10-9-8 of terminal board
M2
.
28. ELECTRICAL CONNECTION TO A ZONE SYSTEM
28.1 CONNECTION OF THE RELAY BOARD
Figure 14
Connect the contact relative to heating requests in zones that are not controlled by the remote control device in parallel
to terminals
1-2
“TA” on terminal board
M1
.
Remove the jumper.
The zone controlled by the remote control device is managed by the zone 1 solenoid, as illustrated in figure 15.
28.2 CONNECTING THE ZONES
IMPORTANT:
make sure parameter
F04 = 2
(as per factory setting – section 19).
Figure 15
CG_1840 7 1102_1704
BOILER BOARD
RELAY BOARD
RELAY 2
RELAY 1
CG_1825 / 1102_1705
ZONE 1
ZONE 1
(REMOTE CONTROL UNIT
ZONE 2
(AMBIENT THERMOSTAT)
ZONE 3
(AMBIENT THERMOSTAT)
ZONE N
(AMBIENT THERMOSTAT)
Electrovalve
ZONE 1