69
2.13.2 Chrono-thermostat or Air Thermostat
The electrical connection of the chrono-thermostat or air
thermostat has already been described. When fitting the com-
ponent in the room where the readings are to be taken, follow
the instructions provided on the packaging of the product it-
self.
2.13.3 EXAMPLE of use of the command/control
device on some types of heating systems
KEY
M
System delivery
R
System return
CR
Remote control
SE
External sensor
TA÷TA3 Air thermostat for the zone
VZ1-VZ3 Zone valves
RL1-RL3 Zone relays
P1-P3 Zone pump
SI
Hydraulic separator
ONE DIRECT ZONE system , external sensor and air thermo-
stat or, alternatively, remote control.
R
M
SE
TA
CR
Fig. 22
MULTI ZONE system -with zone valve, air thermostat and ex-
ternal sensor.
TA
TA1
VZ1
VZ2
VZ3
TA2
TA3
SE
R
M
Fig. 23
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.
MULTI ZONE system -with pump, air thermostat and exter-
nal sensor.
TA
SE
TA2
TA3
TA1
P3
RL1
SI
RL2
RL3
P2
P1
R
M
Fig. 24
2.14 Refilling or emptying
Before carrying out the operation described below, make sure
that the main system switch is set to "OFF".
OFF
Fig. 25
2.14.1 REFILL operations
Remove the front panel:
– remove the two screws (1), pull the front panel (2) forwards
and release it from the top by lifting it.
1
2
Fig. 26
EN
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