6.12.2 Chrono-Thermostat Or Air Thermostat; Example Of Use Of The Command/Control Device On Some Types Of Heating Systems; Refilling Or Emptying; 6.13.1 Refill Operations - Sime UNIQA REVOLUTION 25 Installations-, Gebrauchs- Und Wartungsanleitung

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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 de-
vice 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 thermo-
stat.
SE
M R
CR TA
MULTI ZONE system - with zone valve, air thermostat and ex-
ternal sensor.
TA
TZ1
SE M
R
VZ1
m
CAUTION
Set the parameter "tS 17 = DELAY SYSTEM PUMP AC-
TIVATION to allow the opening of zone valve Vz.
Fig. 34
TZ2 TZ3
VZ2 VZ3
Fig. 35
MULTI ZONE system - with pump, air thermostat and external
sensor.
TZ1
TA
RL1
SE M
R
P1
SP
6.13

Refilling or emptying

Before carrying out the operations described below, make sure
that the main system switch is set to "ON" in order for the dis-
play to show the pressure level in the system during refilling.
Make sure that the operating mode is set to "Stand-by";
the case, press the button y
mode has been selected.
ON

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.
2
TZ2 TZ3
RL2 RL3
P2 P3
Fig. 36
if this is not
for at least 1 second until this
Fig. 37
1
Fig. 38
31