D
R
R
0
2
M
0
0
0
0
A
N
0
2
8
2
9
7
3
0
0
3
1
7
6
To factory reset:
- Power down
- Press and hold both buttons
and Fig.1
- Power on
- Wait until the LEDs blink
- Release the buttons
REGULATION WITH DEAD BAND
The receiver can be set on jumper JP1 to regulate with dead band
(see step 7 under "Installation").
When regulating with dead band, the receiver drives the “heat”
valve with the ralay of channel 1 and the “cool” valve with the
ralay of channel 2.
When regulating with dead band, the receiver can learn only one
thermostat on channel 1 and the thermostat will drive both relays
of channel 1 and channel 2. If the setpoint temperature is greater
than the room temperature there is a “heating” request and the
“heat” valve on relay 1 will be turned on, conversely, if the
setpoint temperature is lower than the room temperature there is
a “cooling” request and the “cool” valve on relay 2 will be turned
on. If the room temperature matches the setpoint temperature
both outputs remain off. More in detail the width of the dead band
determines the temperature range in which the outputs remain
off. The dead band‘s width can be set on the trimmer with a small
screwdriver in the range 1 to 11 °C (see step 8 in "Installation").
The heating output will be activated when the room temperature
is below the setpoint temperature of half the dead band, while the
cool output will be activated when the room temperature will be
higher than the temperature setpoint of half the dead band.
When in dead band regulation it is assumed that the heating and
cooling systems are always available and the heating/cooling
status of the transmitter will be ignored, as it is the room
temperature that will determine whether to heat or to cool.
When in dead band regulation, the “test” mode of the thermostat
will toggle every 2 seconds only output 1 (heating).
When the receiver is set for dead band regulation, it can not
perform the lower and upper floor temperature limitation that can
be set on TRD01B and DCW01B thermostats.
TROUBLESHOOTING
SYMPTOM
:
The receiver appears completely “dead”.
PROBABLE CAUSE
: There’s no mains power.
REMEDY
:
Check the mains power connection.
Usually LEDs may remain off, but they
perform a blinking sequence “green-red-
green-red” when the receiver is switched on
to indicate correct operation.
SYMPTOM
:
One of receiver’s LED continuously blinks
green.
PROBABLE CAUSE
: The device is signalling a fault because it
has detected an error in the temperature
probe of the wireless thermostat or
programmable thermostat.
REMEDY
:
Check the temperature probe of the
transmitter and, if present, the jumper for
selecting between the internal and external
probe. Carefully read the instructions of the
transmitters for further information.
SYMPTOM
:
One of receiver’s LED continuously blinks
yellow.
PROBABLE CAUSE
: The device is signalling a fault because it
has detected the wireless thermostat or
programmable thermostat batteries to be
running low.
REMEDY
:
Replace the batteries of the transmitters
concerned. Carefully read the instructions of
the transmitters for further information.
SYMPTOM
:
One of receiver’s LED continuously blinks
red.
PROBABLE CAUSE
: The channels in question are in an “alarm
status” due to the absence of radio
communication.
REMEDY
:
Check the radio communication again using
the “test” function on the transmitter.
Assess whether the devices need to be
moved away from metal shields or a
“repeater” needs to be installed.
SYMPTOM
:
When starting the self-learning procedure,
the receiver does not blinks the LED yellow.
PROBABLE CAUSE
: The self-learning button has been pressed
too quickly.
REMEDY
:
Start the self-learning procedure keeping
pressed the self-learning button for one
second.
SYMPTOM
:
The transmitter is in the “test” mode but
the receiver fails to switch on any relay.
The LED does not indicate any reception of
commands via radio.
PROBABLE CAUSE
: The signals received are too weak to enable
correct decoding of the commands .
REMEDY
:
Assess whether the devices need to be
moved away from metal shields or a
“repeater” needs to be installed.
SYMPTOM
:
The receiver’s LED remain red despite the
communication with the transmitter had
been restored.
PROBABLE CAUSE
: The long-term analysis of the signal quality
reports the history of the last 90 minutes of
the channel activity.
REMEDY
:
Verify with the “test” mode that the
“immediate” indication on the LED indicates
a sufficient signal quality and allow up to
90 minutes for the long-term analysis to
turn green.
TECHNICAL FEATURES
Power supply:
230V 50Hz / 24V
Absorption:
11VA
Relay contacts ratings:
2 x 6(4)A 250V (voltage free)
Regulation hysteresis :
0,3°C
Frequency:
868,150 MHz
Sensitivity:
-105 dBm
Modulation:
GFSK
Bandwidth (-3 dB):
100 KHz
Type of antenna:
internal stylus
Max. distance from transmitter: >300m in free field
>50 m in buildings (depending
on the building and environment)
Protection rating:
IP 3X
Type of action:
1
Overvoltage category:
II
Pollution degree:
2
Tracking index (PTI):
175
Class of protection
against electric shock:
II
Rated impulse voltage:
2500V
Number of automatic cycles:
100000 (diagrams on Fig. 7, 8,
9, 10)
Software class:
A
EMC test voltage:
230V 50Hz
EMC test current:
45 mA
Distances tolerances fault
mode ‘short’ exclusion:
±0,15 mm
Ball pressure test temperature: 75 °C
Operating temperature:
0°C .. 40 °C
Storage temperature:
-10°C .. +50 °C
Humidity limits:
20% .. 80 % RH non-condensing
Enclosure:
Material:
ABS V0 self-extinguishing
Colour:
Signal White (RAL 9003)
(RAL 9003)
Installation:
Wall mounted
DIMENSIONS
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 1999/44/EC as well as to the
manufacturer’s document about the warranty policy. The full text
of warranty is available on request from the seller.
- ENGLISH -
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