2.13.2 Chrono-Thermostat Or Air Thermostat; Example Of Use Of The Command/Control Device On Some Types Of Heating Systems; Refilling Or Emptying; 2.14.1 Refill Operations - Sime BRAVA ONE HE 25 Manual De Instalación Y Mantenimiento

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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.
SE
M R
CR TA
MULTI ZONE system -with zone valve, air thermostat and ex-
ternal sensor.
TA
TA1
SE M
R
VZ1 VZ2
m
CAUTION
Set the parameter "tS 1.7 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve VZ.
All manuals and user guides at all-guides.com
Fig. 22
TA2 TA3
VZ3
Fig. 23
MULTI ZONE system -with pump, air thermostat and exter-
nal sensor.
TA1
TA2
TA
RL1 RL2
M
SE R
P1
SI
2.14

Refilling or emptying

Before carrying out the operation described below, make sure
that the main system switch is set to "OFF".
OFF

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.
2
TA3
RL3
P2 P3
Fig. 24
Fig. 25
1
Fig. 26
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