30. CONNECTING A ZONE HEATING SYSTEM
30.1 - CONNECTING THE NETWORK BOARD
The relay board is not a standard boiler component and is supplied as an accessory. Connect terminals 1-2-3 of connector CN1 on the
relay board, to the respective terminals 10-9-8 of terminal board M2 (figure 18).
BOILER BOARD
Figure 18
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 19.
Figure 19
IMPORTANT:
make sure parameter F04 = 2 (as per factory setting – section 21).
INSTRUCTIONS FOR FITTERS
RELAY BOARD ACCESSORY
RELAY 2
RELAY 1
30.2 - CONNECTING THE ZONES
ZONE 1
ZONE 1,
REMOTE CON-
TROL UNIT
ELECTRO-
VALVE
ZONE 1
54
ZONE 2,
ZONE 3,
AMBIENT
AMBIENT
THERMOSTAT
THERMOSTAT
ZONE N,
AMBIENT
THERMOSTAT
926.008.2 - EN