14
Fastening and connecting
The unit has been designed to be built in (in-
side fan-coils, special panels or other suitable
housings).
The unit shall be installed by quali
fi
ed person-
nel in accordance with the EN regulations in
force.
The maximum communication distance be-
tween the actuator and the transmitter shall
be 30 m. in free air. Connect the wires to the
socket terminal block in accordance with the
diagrams illustrated below.
If a two-tube system is available, connect only
valve “1” (contact between terminals “C” and
“V1”). In case of a four-tube system, valve “1”
is dedicated to heating, whereas valve “2” (be-
tween “C” and “V2”) is dedicated to cooling.
WARNING! Prior to carrying out any operation
on the unit, make sure that you have discon-
nected the mains connecting cables.
Operation
The unit operating status is indicated by the
LED represented by
:
• GREEN: good RF signal level.
• YELLOW: poor RF signal level.
• RED: low or poor RF signal level, or signal
not detected.
• Alternating GREEN/RED: relay switch-on
manual mode.
• Alternating GREEN/YELLOW/RED/OFF: sig-
nal self-learning mode.
• Five more red LEDs indicate the switch-on of
the corresponding relays.
To be able to use the CH172DRF with a
CH130RF, a self-learning procedure shall be
performed: keep the CH172DRF button de-
pressed for approximately 5 seconds until the
multicolour LED comes on by switching among
green, yellow, red and OFF.
Then press the CH130RF reset button: after a
few instants, the LED will be blinking fast and
then illuminate green steadily.
Содержание CH130RFR
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