Whisper WCN 8W Wiring Centre W Manual

KF-508
WCN 8W Wiring Centre W
OVERVIEW
This device is a connection box for 8-way floor heating systems with 230 V
or 24 V selectable power supply.
This device controls up to 8 outputs for actuators and thermostats; each output
can drive one thermostat and its actuator. An output for a pump is available,
depending on the supply voltage, as well as an output for driving the burner,
with voltage free contacts. Moreover the unit allows to connect an external time
programmer for the activation of the actuators and thermostats connected (this
output is depending on the supply voltage).
The wiring centre is equipped with an 8 A time-delayed fuse (F1) which protects
against short circuits the wiring centre itself as well as the loads connected to it.
There are two LEDS on the device front panel, shown in Fig. 1:
- Green 'power' LED, marked with the symbol '
- Red led for ' pump output and boiler active ', marked with symbol '
at least one actuator is energised by its thermostat both pump and boiler
contacts close (red led on the front cover turned on), meanwhile when no
actuator is active the contacts are open.
OPERATION
When at least one thermostat connected to the wiring centre is calling for heat,
the device immediately activates the boiler output, the relevant channel output
and the pump output. These outputs are all immediately turned off when no
thermostat is calling for heat.
Note: actual actuator's opening and closing time depends on the specific type of
actuator installed.
TIME PROGRAMMER INPUT
This input allows the installer to connect an external time programmer
(optional). This time programmer will turn on and off the entire live wire (SWL)
reaching the thermostats, thus turning them on and off according to the time
program set by the user.
The NSB terminal allows, once connected to the relevant terminal of a proper
thermostat, to set the Night Set Back mode on the thermostat, thus setting it
into the 'economy' set-point, which is normally fixed, according to the
manufacturer's choice.
In case no time programmer is used a bridge must be applied between
terminals L1 and SWL.
INSTALLATION
In order to install the device proceed as follows:
- Remove the 5 screws labelled as
cover.
- Fix the device base to the wall by using the two screw holes labelled
Fig. 2.
When working with electric tools in close proximity to the electronic
parts, double check that the device is completely disconnected from
230V~ mains and take care to avoid damaging the circuits or
components.
- Make the electrical connections as shown in ' Electrical Wiring ' below.
- The cables should be "bent" as shown in Fig. 4 and made to pass through the
cable glands . If you use a cable entry and its respective cable gland, you
6
will have to remove the plastic tab
passage for the cable.
- Then reposition the front panel on the enclosure and fasten in place with the
five screws in Fig. 1.
1
ELECTRICAL CONNECTIONS
The control unit can be fed with 230 V
The selection depends on the output voltage needed to supply the thermostats
and actuators section.
230 V POWER SUPPLY (Default setting)
a
WARNING
Please read the following carefully and also consult the wiring diagram,
Fig. 5, which shows the connection of the power supply and external
components to the wiring centre.
When the control unit is to be powered with 230 V
e PF2 as shown in A in Fig. 4.
Terminals L and N are the inputs for the power supply: connect to 230 V
making sure that terminal N is wired to the Neutral. The electronic circuitry and
loads are protected by the 8 A time-delay fuse F1 (
The unit features a terminal block for the protective earth wirings (yellow colour)
- see I Fig. 4.
These are for ensuring earth continuity between the earth conductor in the
mains supply cable and any earth conductor for devices connected to the wiring
centre e.g. a circulating pump.
Terminals L2 and N2 are the 230 V
circulating pump.
Terminals NO and C are the outputs that control the boiler. These are voltage
free contacts (i.e. unpowered) so that they can be used for boilers with
different voltages.
Through terminals L1 N1 SWL NSB a 230 V
(optional) can be connected to the wiring centre. Terminals L1 and N1 are the
powered outputs for the time programmer power supply, while SWL and NSB
are the lines provided for powering the actuators and thermostats section. In
case no time programmer is used a wire bridge must be applied between
terminals L1 and SWL.
For a complete control of each of the available channels the user must connect
a 230 V actuator to terminals L1 and N1 and a 230 V
terminals NSB SwL< SwL> TN TL. All outputs of the actuators and thermostats
section are 'powered' outputs, i.e. they do provide the voltage for the device
connected to them.
'. It is lit when the device is fed.
in Fig. 1 then remove the front plastic
1
7 in Fig. 4 with suitable pliers to open the
or 24 V .
, place the two jumpers PF1
Fig. 4).
L
powered outputs for connecting the
external time programmer
thermostat to
'; when
24 V POWER SUPPLY
a
WARNING
Please read the following carefully and also consult the wiring diagram,
Fig. 6, which shows the connection of the power supply and external
components to the wiring centre.
When the control unit is to be powered with 24 V
PF2 as shown in B in Fig. 4.
Terminals L and N are the inputs for the power supply: connect to 24 V
making sure that terminal N is wired to the Neutral. The electronic circuitry and
loads are protected by the 8 A time-delay fuse F1 (
The unit features a terminal block for the protective earth wirings (yellow colour)
- see Fig. 4.
I
These are for ensuring earth continuity between the earth conductor in the
mains supply cable and any earth conductor for devices connected to the wiring
centre e.g. a circulating pump.
Terminals L2 and N2 are the 24 V
circulating pump.
Terminals NO and C are the outputs that control the boiler. These are voltage
free contacts (i.e. unpowered) so that they can be used for boilers with
different voltages.
Through terminals L1 N1 SWL NSB a 24 V
(optional) can be connected to the wiring centre. Terminals L1 and N1 are the
powered outputs for the time programmer power supply, while SWL and NSB are
the lines provided for powering the actuators and thermostats section. In case no
time programmer is used a wire bridge must be applied between terminals L1
and SWL.
2 in
For a complete control of each of the available channels the user must connect
a 24 V actuator to terminals L1 and N1 and a 24 V
terminals NSB SwL< SwL> TN TL. All outputs of the actuators and thermostats
section are 'powered' outputs, i.e. they do provide the voltage for the device
connected to them.
TECHNICAL FEATURES
Power supply:
Absorption:
Fuse (F1):
Pump output:
Boiler output:
Therm./actuators outputs:
Time prog. output (optional):
Contacts rating:
- Pump:
- Boiler:
- Actuators and thermostats:
Maximum applicable load:
- Actuators and thermostats:
Indicators:
- Voltage presence:
- Boiler and pump activation:
Protection index:
Operating temp.:
,
Storage temp.:
Humidity limits':
Case: Material:
Colour:
Dimensions:
Weight:
a
WARNING
- The appliance must be wired to the electric mains through a switch
capable of disconnecting all poles in compliance with the current safety
standards and with a contact separation of at least 3 mm in all poles.
- Installation and electrical wirings of this appliance must be made by
qualified technicians and in compliance with the current standards.
- Before wiring the appliance be sure to turn the mains power off.
WARRANTY
In the view of a constant development of their products, the manufacturer
reserves the right for changing technical data and features without prior notice.
The consumer is guaranteed against any lack of conformity according to the
European Directive 2019/771/EU as well as to the manufacturer's document
about the warranty policy. The full text of warranty is available on request from
the seller.
1
6 Church Green,
Witney, OX28 4AW
, place the two jumpers PF1 e
Fig. 4).
L
powered outputs for connecting the
external time programmer
230 V ±10% 50 Hz or
24 V ±10% 50 Hz
Depends on the loads connected.
8 A Time delayed
Depend on the supply voltage
Voltage free contact
Depend on the supply voltage
Depend on the supply voltage
5 A 250 V SPDT
1 A 250 V SPDT
8 x 1 A 250V
3 A Total
1 A each channel
Green led
Red led
IP 30
0 .. 40 °C.
-10 .. 50 °C
20 % .. 80 % RH (non condensing)
ABS UL-V0 self-extinguishing
Signal white (RAL 9003)
245 x 100 x 60 mm (WxHxD)
~ 510 gr.
ALP03U0001WH 039829 190722
KF 508 -
Zone controller
,
thermostat to