2
© 2013 OJ Electronics A/S - EHT Haustechnik GMBH
Anschluss (Abb. 3):
Klemme F arbcode Anschluss
1, 2
V ersorgungs spannung,
230V AC 50/60 Hz
5, 7
Ausgangsrelais, 16 A Heizkabel
(Abb. 7)
8, 9
Grau/Rosa
(1/2)
T emperaturfühler 1,
EF 50-25 H oder A TF 5
10, 11
Gelb/Weiß
(5/6)
F euchtefühler ,
EF 50-25 H oder F 50-10 RH
13, 14
Braun/Grün
(3/4)
F ühlerheizung EF 50-25 H
oder F 50-10 RH
Umwelt und Wiederver wertung
Helfen Sie mit, die Umwelt zu schützen, und
entsorgen Sie V erpackung und gebr auchte
Pr odukte auf umweltgerecht e Weise.
Entsorgung des gebrauchten P rodukts
Pr odukte mit diesem Kennz eichen
dürfen nicht mit herkömmlichem
Hausmüll entsorgt wer den, sondern
müssen getrennt gemäß den lokal
geltenden Regeln eingesammelt
werden.
Abbildungen
Abb. 1. Montage des einzubetonierenden
Abb. 2. Montage des Dachrinnenfühlers
F 50-10 RH und des Außenfühlers A TF 5
1 Thermostat EM 50-1
2 Dachrinnenfühler F 50-10 RH
3 Außenfühler A TF 5
Abb. 3. Anwendungsbeispiel Aussenflachen
Abb. 4 Anwendungsbeispiel Dachrinnen
Abb. 5. EF 50-25 H Anschluss
Abb. 6. F 50-10 RH und A TF 5 Anschluss
Abb. 7. V ersorgungsspannung und Heizkabel
Anschluss
Abb. 8. EM 50-1 Eismelder
English
T ype EM 50-1 is an electronic thermostat for
economical ice and snow melting on out-
door areas and in gutters. Ice forms due t o a
combination of low temper ature and moisture.
EM 50-1 detects temper ature and moistur e and
the snow melting system will usually only be
activated if snow or ice is present. EM 50-1 is
suitable for controlling electric heating cables.
PRODUCT PROGRAM
EM 50-1 Thermostat.
EF 50-25 H Ground sensor for detecting
temper ature and moisture.
F 50-10 RH Gutter sensor for detecting
moisture.
ATF 5 Outdoor sensor for detecting temperature
CE MARKING
According to the following standar d:
L VD/EMC: EN 60730-2-9.
Applied standards
EN 61000-6-3, EN 61000-6-2, EN 60730-1 and
EN 60730-2-9.
The product may only be used if the complete
installation complies with current dir ectives.
The product carries a manufactur er‘s warranty
if installed in accordance with these instructions
and current r egulations.
If the product has been damaged in any way,
e.g. during transport, it must be inspected and
checked by authorised personnel before being
connected to the power supply .
WARNING – Important safety instructions.
Always disconnect the power supply before
performing installation or maintenance work on
this control unit or any of the components con-
nected to it. This contr ol unit and the compo-
nents connected to it should only be installed
by qualified electricians. Electrical installation
must be performed in accordance with applica-
ble local regulations.
TECHNICAL D A T A
Thermostat EM 50-1:
Supply voltage ........ 230 V AC ±10%, 50-60 Hz
Output relay (NO) ........................................ 16 A
On/o dierential ..................................... 0.3 °C
T emperatur e Setting for Startup ......... 0/+10 °C
Run-on time ....................................... 0-5 hours
Ambient temper ature ....................... -10/+50 °C
Ambient air humidity ........................... 10-95 %
Enclosure r ating ......................... IP 20 / Nema 1
P ower consumption .................................. 3 VA
Weight ...................................................... 200 g
Dimensions H/W/D ...................... 86/52/59 mm
Ground sensor type EF 50-25 H:
Designed to be embedded in outdoor areas.
Detection ................. Moisture and temperatur e
Mounting ...................................... Outdoor area
Enclosure r ating ......................................... IP 68
Ambient temper ature ....................... -50/+70 °C
Dimensions ....................... H78 mm, Ø63,5 mm
Gutter sensor type F 50-10 RH:
Designed to be mounted in gutt er or downpipe.
Is used together with outdoor sensor type A TF 5.
Detection ............................................. Moisture
Mounting ............................ Gutter or downpipe
Enclosure r ating ......................................... IP 68
Ambient temper ature ....................... -50/+70 °C
Dimensions H/W/D .................... 110/28/16 mm
Outdoor sensor type A TF 5:
Detection ....................................... T emper ature
Mounting .................................................... Wall
Ambient temper ature ....................... -50/+70 °C
Dimensions H/W/D ...................... 65/50/35 mm
The snow and ice melting system is deactivated
in the event of sensor failure.
SENSOR INST ALLA TION
Ground sensor EF 50-25 H, fig. 1 + 3:
F or installation on outdoor areas wher e snow
and ice is a regular pr oblem. The sensor must
be embedded with its top flush with the sur -
roundings with the help of the accompanying
installation plate. The sensor cable must be
installed in accordance with curr ent regula-
tions. We r ecommend that cable pipes be laid
to prot ect the sensor cable. Detailed installation
instructions are supplied with the sensor .
Gutter sensor F 50-10 RH, fig. 2 + 4:
F or installation in a gutter or downpipe on the
sunny side of the building. It is important to
ensure that the sensor contact elements face
against the flow of melt water . Detailed installa-
tion instructions are supplied with the sensor .
Outdoor sensor A TF 5, fig. 2 + 4:
F or use in conjunction with gutter sensor
F 50-10 RH. Can also be used separ ately for
the detection of temper ature alone. The sensor
should be mounted on the wall under the eaves
on the north side of the building.
Sensor cables with current r egulations. They
must never be installed parallel t o power cables
as electrical interference may dist ort the sensor
signal.
Thermostat installation
The thermostat should be DIN-rail mount ed in
an approved panel.
Connect supply voltage to terminals 1 and 2.
Electrical installation must be performed in ac-
cordance with applicable local r egulations.
Setup
EM 50-1 can be set up for ice and snow melting
on outdoor areas in conjunction with EF 50-25H
sensors or in gutters/downpipes in conjunction
with F 50-10 RH and A TF 5 sensors.
• Electric heating control with EF 50-25 H
(fig. 5 + 7):
Connect 1 EF 50-25 H sensor to terminals
8-14.
Connect heating cable to output relay ac-
cording to fig. 7.
• Electric heating control with F 50-10 RH +
A TF 5 (fig. 6 + 7):
Connect 1 F 50-10 RH sensor to terminals
10-14.
Note that the pink and grey wir es must not be
connected.
Connect 1 A TF 5 sensor to terminals 8 and 9.
Connect heating cable to output relay ac-
cording to fig. 7.
How to program the sensitivity:
1. Turn off the power to the ETR2.
2. Connect a wire between terminals 8 and 9
3. Connect a wire between terminals 10 and 11
4. Turn the TIME SET knob to max. (constantly
on).
5. Turn the TEMP SET knob to max. (10).
6. Turn on the power. The LED for ON will flash.
a. The LEDs for TEMP, MOIST and RELAY
will light constantly, indicating the factory
setting for sensitivity level.
7. Program the sensitivity level by turning the
TIME SET knob from 1-5 (1=min., 2=low,
3=normal/factory setting, 4=high, 5=max.).
a. The combination of LEDs will indicate the
programmed sensitivity (see matrix below).
8. Turn off the power and select the required
settings for temperature (TEMP SET) and
after-run time (TIME SET).
9. Remove the wires connecting terminals 8 and
9 and terminals 10 and 11.
10.
Install the temperature sensor and moisture
sensor as normal.
Turn the TIME SET knob from 1-5.
The combination of LEDs will indicate the
programmed sensitivity:
TIME SET
knob
Sensitivity
level
LED for
”TEMP”
LED for
”MOIST”
LED for
”RELAY”
1 Minimum ON OFF OFF
2 Low ON ON OFF
3 Factory
Setting
ON ON ON
4 High OFF ON ON
5 Maximum OFF OFF ON
WIRING (FIG. 3)
T erminal Colour code Wiring
1, 2
Supply voltage,
230 V AC 50/60 Hz
5, 7 Output relay, 16 A (fig.7)
8, 9 grey/pink (1/2)
T emperature sensor 1,
EF 50-25 H or A TF 5
10, 11
yellow/white
(5/6)
Moisture sensor ,
EF 50-25 H or F 50-10 RH
13, 14
brown/green
(3/4)
Sensor heating
EF 50-25 H or F 50-10 RH
Environment protection and recycling
Help protect the envir onment by disposing of
the packaging and redundant pr oducts in a
responsible manner .