Connecting A Zone Heating System; Electrical Connection To A Zone System - Baxi Nuvola 3 BS 40 Series Operating And Installation Instructions

29. ELECTRICAL CONNECTION TO A ZONE SYSTEM

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.
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 20).
INSTRUCTIONS FOR FITTERS
29.1 CONNECTION OF THE RELAY BOARD
RELAY BOARD
RELAY 2
RELAY 1
29.2 CONNECTING THE ZONES
ZONE 1
ZONE 1
(REMOTE CONTROL UNIT
Electrovalve
ZONE 1
ZONE 2 ZONE 3
(AMBIENT THERMOSTAT) (AMBIENT THERMOSTAT)
56
ZONE N
(AMBIENT THERMOSTAT)
7113868.01 - en