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6.13.2 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.
6.13.3 EXAMPLE of use of the command/control de-
vice on some types of heating systems
KEY
CR
Remote control
SE
External temperature sensor
TA
Air thermostat for boiler activation
TZ1÷TZ3 Zone ambient thermostat
EVZ1÷EVZ3
Zone solenoid valve
KA1÷KA3 Zone relays
PI1÷PI3 System pump
SP
Hydraulic separator
ONE DIRECT ZONE system , external sensor and air thermo-
stat.
SE
SE
TA1
CR
TA
MULTI ZONE system - with zone valve, air thermostat and ex-
ternal sensor.
TA
TA1-TA2
SE
TZ1
EVZ1
SE
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP AC-
TIVATION to allow the opening of zone valve EVZ.
Fig. 31
TZ2
TZ3
EVZ2
EVZ3
Fig. 32
MULTI ZONE system - with pump, air thermostat and external
sensor.
TA
TZ1
TA1-TA2
SE
KA1
SE
SP
6.14
Refilling or emptying
Before carrying out the operation described below, make sure
that the main system switch is set to "OFF".
OFF
6.14.1 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.
2
TZ2
TZ3
KA2
KA3
PI1
PI2
PI3
Fig. 33
Fig. 34
1
Fig. 35
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