Sime 8112265, Operating, Installation And Servicing Instructions

Page: 29 / 56

29
8.13.2 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 with the device.
8.13.3 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.
R M
SE
TA CR
Fig. 34
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. 35
MULTI ZONE system - with zone valve, air thermostat and ex-
ternal sensor.
TA
TZ1
VZ1 VZ2 VZ3
TZ2 TZ3
SE R M
Fig. 36
m
CAUTION
Set the parameter "tS 17 = DELAY SYSTEM PUMP AC-
TIVATION to allow the opening of zone valve Vz.