51
925.476.4 - EN
INSTRUCTIONS PERTAINING TO THE INSTALLER
27. ELECTRICAL CONNECTIONS TO A ZONAL HEATING SYSTEM
The relay board is not a standard boiler component as it is supplied as an accessory. Connect terminals 1-2-3 (common
- normally closed - normally open) of connector
Cn1
on the relay board to the respective terminals 10-9-8 on the boiler
terminal board
M2
(figure 17).
27.1 CONNECTING THE RELAY BOARD
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 18.
27.2 CONNECTING THE ZONES
RELAY BOARD
RELAY BOARD ACCESSORY
RELAY 2
RELAY 1
CG_1840 / 0904_1504
Figure 17
ZONE 1
ZONE 1
REMOTE CONTROL
Figure 18
SOLENOID
ZONE 1
ZONE 2
AMBIENT THERMOSTAT
ZONE 3
AMBIENT THERMOSTAT
ZONE N
AMBIENT THERMOSTAT
CG_1825 / 0904_1505
Содержание star master 240 Fi
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