Ariston 47-116-35 Instructions d'installation et d'entretien - Page 38

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4. ZONE VALVES

38
The boiler is capable of managing a heating system that uses zone
valves. The electrical connection of these valves is carried out by
means of the appropriate ter minal board (indicated in the
"E
C
" section).
LECTRICAL
ONNECTION
By way of example, two possible types of systems would be:
1.
System with 2 valves with independent regulation of the zones
(day and night).
2.
System with 1 valve (regulation of the night zone subordinated
to that of the day).
A possible set-up for the first type of system is as follows:
CR
= remote control
VZ1,2
= zone valve 1 and 2
TA
= room thermostat or timer-thermostat
= radiators
F,N
= electrical connection (live and neutral)
RL
= relay
A possible set-up for the system with a single zone valve is as
follows:
This set-up is simpler and more economical because it does not
involve the use of the special relay. The night zone, however, may
only be heated during the time periods in which the remote control
timer gives consent to the heating of the day zone. Example:
•
day zone programming (remote control): 8:00 - 22:00
•
night zone programming (timer-thermostat): 20:00 - 22:00