19
CS.ECO-TFT.IST-1-EN / Rev 1.0
ENGLISH
INITIAL START-UP
System configuration
Before commissioning the appliance,
it is advisable to choose which type of system it has been connected to, by accessing “Sub
-menu M09-3
–
PLANT TYPE”.
The available PLANT TYPE configurations are given below:
➢
1 = Boiler connected to a heating system and (potentially) an external plate heat exchanger for the production of DHW.
Plant Type “
1
” involves connecting the boiler to a heating system (or centralised puffer)
managed by one or more room thermostats. These are
connected to the terminal located inside the appliance’s technical compartment. The production of DHW, where required, will b
e achieved using a
plate heat exchanger fitted externally to the appliance and controlled by a flow switch, which is also connected to a terminal arranged on the boiler.
This device is used to bring the appliance immediately to domestic hot water power output working mode and to switch a three-way motor-driven valve
to give it priority.
➢
2 = Boiler with integrated instant DHW, connected to a heating system combined with an alternative DHW generator.
Plant type “
2
” invo
lves connecting the boiler with integrated instant DHW (configured model only) to a heating system managed by one or more room
thermostats. These are connected to the terminal fitted inside the appliance’s technical compartment. DHW generation is achie
ved via a mini storage
tank built-into the appliance. To guarantee DHW at all times, in this plant configuration it is necessary to combine an alternative DHW generator. The
combination with the alternative DHW generator is managed by a motor-driven three-way valve connected to the pellet-fired appliance: in this way,
the DHW generated by the pellet-fired appliance can be used only when the latter is running and has thus reached its working temperature.
SET H2O
P1 : Boiler Circulator Pump
V1 : Diverter Valve
SC : Boiler Sensor
TA : Room Thermostat
FS : Flow Switch
SET H2O
P1 : Boiler Circulator Pump
V1 : Diverter Valve
SC : Boiler Sensor
TA : Room Thermostat
FS : Flow Switch
