83
EN
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
component in the room where the readings are to be taken,
follow the instructions provided on the packaging of the product
itself.
2.13.3 EXAMPLE of use of the command/control device
on some types of heating systems
KEY
M
System delivery
R
System return
Mb
Hot water tank delivery
Rb
Hot water tank return
CR
Remote control
EXP
Expansion card
SE
External sensor
SB
Hot water tank 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 and REMOTE HOT WATER TANK,
external sensor and air thermostat or, alternatively, remote
control.
R
M
Mb Rb
SE
TA
CR
SB
Fig. 24
m
CAUTION
The boiler is pre-arranged for connection to a remote
hot water tank. To use the boiler for HEATING ONLY:
– disconnect the hot water tank sensor (SB)
– set "PAR 02 = HYDRAULIC CONFIGURATION" to 1.
This operation must only be carried out by
Professionally Qualified Personnel during the boiler
commissioning phase.
ONE DIRECT ZONE system , external sensor and air thermostat.
R
M
SE
TA
CR
Fig. 25
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. 26
MULTI ZONE system - with zone valve, air thermostat and
external sensor.
TA
TZ1
VZ1
VZ2
VZ3
TZ2
TZ3
SE
R
M
Fig. 27
m
CAUTION
Set the parameter "tS 17 = DELAY SYSTEM PUMP
ACTIVATION to allow the opening of zone valve Vz.
