10
CS.ECO-TFT.IST-1-EN / Rev 1.0
ENGLISH
ELECTRICAL CONNECTION
The electric connection must only be performed by
qualified staff,
in compliance with all general and local safety standards.
Check that the power supply voltage and frequency correspond to 230 V
–
50 Hz.
The appliance’s safety is ensured when it is properly connected to an efficient earthing system.
In the electric connection to the mains power supply, include a 6 A
–
Id 30 mA differential trip-switch with suitable breaking load. The electric
connections, including the earth connection, must be made after shutting off the electrical system.
When completing the system, bear in mind that the cables must be laid in an unmovable manner and far from parts subject to high temperatures.
During the final wiring of the circuit,
only use components with a suitable electrical protection rating. Do not pass electric cables in the immediate
vicinity of the flue gas pipe, unless they are insulated with suitable materials.
KLOVER S.r.l. declines all responsibility for injury to persons and animals or damage to objects due to failure to connect the appliance to
earth or to comply with IEC specifications.
Control of a possible three-way motorized valve for DHW system management
The pellet appliance is equipped as standard with a control for a possible 3-way motorised valve to be installed on the domestic water circuit
based
on the selected system type
(see
“System configuration”
)
. On the terminal block of the appliance’s
left-hand technical compartment
there are four
inputs that can be used for controlling this valve
(see also
“Wiring diagram”
)
. The four wires connected to the terminal block have different colours,
precisely:
-
Blue wire = 3-WAY VALVE COMMON (Neutral 230 V)
-
Black wire = DOMESTIC WATER SIDE (Live 230 V with DHW demand)
-
Brown wire = HEATING SIDE (Live 230 V with no DHW demand)
-
Yellow/green wire = GND
Connection to the room thermostat
On the terminal block of the appliance’s
left-hand technical compartment
there are two bridged inputs which can be used to connect a room thermostat
that will command the operation. The operation of the room thermostat is enabled with plant types 1, 2, 3, 5
(see
“System configuration”
)
.
Listed below is the operating principle with
OPEN CONTACT
:
-
The appliance switches directly to economy mode operation
“T
-
AMB ECONOMY”
thus minimising its operating power.
-
The heating circulating pump of the appliance switches off.
-
The appliance switches off with a delay set to Pr44.
The appliance will switch on again automatically if all of the following conditions occur:
-
The contact of the room thermostat closes.
-
If it goes below the temperature differential (SET H2O
–
Pr43).
-
Once any cooling cycles are complete.
N.B.: if the water temperature exceeds the set threshold of 80°C (Pr50 = safety temperature), the system’s circulator pump is
forcedly switched on to
ensure the disposal of excessive heat, thus avoiding high water temperatures in the boiler. For this reason, it is recommended that the heating system
is not entirely closed.
In the configuration “System type 3”, the appliance switches to economy mode and then switches off only if the
“SET BOILER”
temperature setting
has been reached.
WARNING: if also the external room sensor is enabled, the appliance switches to economy mode if the
“SET ROOM”
temperature setting has also
been reached.
