User Manual
4. Site REA23.03RF
• Site REA23.03RF at preferred location for mounting at wall or setting up with stand
• Also refer to “Mounting and siting notes REA23.03RF and REA-R.03/1“
a) Switch off power at REA-R.03/1
5. Find location of
best RF reception
b) Switch on REA23.03RF, site at preferred location and press override button
for
about 4 seconds: REA23.03RF transmits test telegrams every 2 seconds.
Transmission of test telegrams stops automatically after 10 minutes or after press-
ing either “ESC” button or override button
c) Switch on power at REA-R.03/1
d) Observe both LEDs on REA-R.03/1 from a distance of 2…3 meters
e) Orange LED_2 must flash briefly every 2 seconds. If LED_2 does not flash every
2 seconds, distance between REA23.03RF and REA-R.03/1 is too far. Mount
REA-R.03/1 closer to REA23.03RF
f) LED_1 shows received signal strength of last telegram:
LED_1 flashes red: Signal is too weak to get a durable link. Mount REA-R.03/1
closer to REA23.03RF
LED_1 flashes green: We distinguish between three signal strengths:
Very good (flashes 3x), Good (flashes 2x) and
Satisfactory (flashes 1x).
As soon as LED_1 flashes in green, link between
REA23.03RFand REA-R.03/1 is basically ok.
g) Move REA-R.03/1 within an area of approximately 1 square meter to find location of
best RF reception. Always observe LEDs from a distance of 2…3 meters. To get a
durable link, we recommend that REA-R.03/1 be placed in a location where the sig-
nal strength is at least “Good”.
6. Explanations
to LEDs
No REA
23.03RF
link
ed
LED_1 lights always
in red
Red on
Red off
Signal
strength too weak
LED_1 flashes in red
Red on
Red off
Si
g
nal stren
g
th: Ver
y
g
ood
1 2 3
Starting
sequence
Starting
sequence
1 2 3
LED_1 flashes
3 times in green
Green on
Green off
Si
g
nal stren
g
th: Good
1 2
1 2
Starting
sequence
Starting
sequence
Starting
sequence
LED_1 flashes
2 times in green
Green on
Green off
Si
g
nal stren
g
th: Satisfactor
y
1
1
Starting
sequence
Starting
sequence
Starting
sequence
1
LED_1 flashes
1 time in green
Green on
Green off
11/16
Building Technologies Room temperature controller REA23.03RF CE1N2218en
Controlled device OFF
LED_2 is always off
Orange on
Orange off
HVAC Products 17.04.2007