Electrical Wiring Of Zone Heating Systems - Sime Format.zip Installation Instruction And Care Manual

the system, turn off the by-pass by turning
ENG
the union to the vertical position (fig. 17/a).
FR
3.7 ELECTRICAL WIRING
OF ZONE HEATING
SYSTEMS
When installing a system of this type, use a
separate electrical line to which room ther-
mostats with their local valves will be con-
nected.
Connect micro switches or relay contacts
on terminals 15-16 of the "TA"connector of
the electronic card after removing the exi-
sting jumper (fig. 18).
KEY
TA-TA1 Zone room stat
VZ-VZ1 Zone valve
R-R1 Zone relay
CR-CR1 Relay contact or micro zone valve
24
"TA" connector
Connettore "TA"
CR
CR
1
By-pass off
By-pass escluso
By-pass inserito
By-pass on
L
TA
VZ
R VZ
N
NOTE: Relays are used only if the
area valves have no microswitches.
Figure 17/a
TA
1
R
1 1
Figure 18