95
CR1
CR
TA
TA
Connettore J2
L
N
TA
TA
1
VZ
R
VZ
1
R
1
NOTA: I relé vengono impiegati solo
nel caso le valvole di zona siano
prive di micro.
L
N
TA
TA1
P
R
P1
R1
CIRCUITO CON VALVOLE DI ZONA
CIRCUITO CON POMPE DI ZONA
Fig. 22
KEY
TA-TA1
Zone room stat
VZ-VZ1
Zone gas valve
P-P1
Zone pump
R-R1
Zone relay
CR-CR1
Zone microvalve or relay contact
3.6
SYSTEM
AVAILABLE HEAD
The head available for the heating plant is
shown as a function of the flow in graph in
fig. 21.
3.7
MAINS ELECTRICITY
CONNECTION
Use a separate electricity supply to con-
nect the room stats and relative zone val-
ves or pumps.
The micro or relay contact connection is
made to TA-CR-SE (J2) connector of the cir-
cuit board after having removed the jum-
per (fig. 22).
0
600
200
1600
1400
1200
1000
800
600
400
PORTATA (l/h)
PREV
ALENZA RESIDU
A (mbar)
500
400
100
200
300
con by-pass
senza by-pass
Plane
t Dewy - Dewy 30/80
Fig. 21
FLOW RATE (l/h)
RESIDU
AL
HEAD
(mbar)
NOTE: Relays are used only if the area
valves have no microswitches.
Connector J2
CIRCUIT WITH ZONE VALVES
CIRCUIT WITH ZONE PUMPS