Sime FORMAT.zip 4 25 OF Manual Del Instalacion página 82

IT
ES
3.8 HEAD AVAILABLE
TO SYSTEM
PT
Residual head for the heating system is
shown as a function of rate of flow in the
GB graph in fig. 17.
To obtain the maximum head available to
the system, turn off the by-pass by turning
the union to the vertical position (fig. 17/a).
GR
3.9 ELECTRICAL WIRING
RO
OF ZONE HEATING SYSTEMS
When installing a system of this type, use a
separate electrical line to which room ther-
RUS
mostats with their local valves will be con-
nected.
Connect micro switches or relay contacts
on terminals 10-11 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
80
600
500
25 BF
25 OF
400
300
200
100
0
200 400
By-pass inserito By-pass on
Connettore "TA" "TA" connector
CR CR
1
By-pass inserito By-pass on
By-pass escluso
By-pass off
25 OF
25 BF
600 800 1000 1200
FLOW RATE (l/h)
PORTATA (l/h)
By-pass off
By-pass escluso
L
TA
VZ
R VZ
1
N
NOTE: Relays are used only if the area
valves have no microswitches.
1400 1600
Fig. 17
Fig. 17/a
TA
1
R
1
Fig. 18