81
EN
6.12.2 Chrono-thermostat or Air Thermostat
The electrical connection of the chrono-thermostat or air ther-
mostat has already been described. When fitting the component
in the room where the readings are to be taken, follow the in-
structions provided on the packaging of the product itself.
6.12.3 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 temperature sensor
TA
Air thermostat for boiler activation
TZ1÷TZ3 Air thermostat for the zone
VZ1-VZ3 Zone valves
RL1-RL3 Zone relays
P1-P3 Zone pump
TSB
Low temperature safety thermostat
ONE DIRECT ZONE system , external sensor and air thermostat.
R
M
SE
TA
CR
Fig. 40
MULTI ZONE system - with zone valve, air thermostat and exter-
nal sensor.
TA
TZ1
VZ1
VZ2
VZ3
TZ2
TZ3
SE
R
M
Fig. 41
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP ACTI-
VATION to allow the opening of zone valve VZ.
MULTI ZONE system - with pump, air thermostat and external
sensor.
TA
SE
TZ2
TZ3
TZ1
P3
RL1
SP
RL2
RL3
P2
P1
R
M
Fig. 42
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP ACTI-
VATION to allow the opening of zone valve VZ.
6.13
Refilling or emptying
Before carrying out the operation described below, make sure
that the main system switch is set to "OFF".
OFF
Fig. 43
6.13.1 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. 44
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