Danfoss EFET 160 Manuale utente
Installation Instructions
EFET 610
Content
Application...................................................... 2
Installation...................................................... 3
Accessories for EFET 160......................................... 4
Mounting the outdoor sensor.................................... 4
Diagram: Heating................................................ 5
Diagram: Cooling................................................ 6
Trouble shooting ................................................ 7
Technical data................................................... 8
The Danfoss Warranty ........................................... 9
Warranty Certificate ............................................11
088L8060 - 01.01 VIFZK102 02/2007
Application
EFET 160 is an electronic thermostat designed for regulating heat and
cold from -10˚C to +50˚C.
EFET 160 is moisture proof (IP 44) so it can be used in moist rooms
and outdoors.
EFET 160 has a built-in 2-pole switch, so an external switch is not
necessary.
EFET 160 is supplied with a NTC sensor of 2.5 m cable. The sensing cable
can be extended up to 50 m with 1.5 mm² installation cable without
affecting the accuracy of the thermostat. However, the cable must not
be placed parallel to high voltage cables as undesirable signals may be
induced. The installation must be permanent. The thermostat must be
connected by an authorized electrician.
2 VIFZK102 02/2007
Installation
1. Before opening the thermostat housing set adjustment button to
minimum temperature, viz. -10˚C.
2. When installing in bathrooms etc., the minimum distance to water
installations must be observed and must comply with current regula-
tions for electric installations.
3. The stamped punchings for diaphragm nipple are removed with a
screwdriver and a hammer.
4. The thermostat is mounted vertically on a wall. The screw holes must
be sealed with the enclosed plugs.
5. If the sensor is to be built in or exposed to pressure it should be
placed in an installation pipe.
6. Installation of thermostat see diagram. Choose function (heating/
cooling).
7. After closing the thermostat housing, check that adjustment button
can be adjusted within full temperature range, i.e. from -10˚C to
+50˚C.
02/2007 VIFZK102 3
Accessories for EFET 160:
- fittings for mounting on pipes,
- outdoor sensor for use with the thermostat.
Mounting the outdoor sensor:
1. Knock pellets out of the thermostat and sensor.
2. Mount the black connection nipple in the sensor hole. Then twist the
connection nipple into the thermostat hole. Turn the outdoor sensor
until the three small locks click.
3. Connect the NTC sensor to the NTC input with a soft mounting cable,
e.g. Ø 0.25 mm2.
4. Fasten the outdoor sensor and thermostat seperately with screws or
clips.
4 VIFZK102 02/2007
fig. 1
180-250 V ~
50-60 Hz
6 7
Heating
NTC
12 3 4 5
02/2007 VIFZK102 5
Cooling:
NTC
fig. 2
6 7
1 2 3 4 5
180-250 V ~
50-60 Hz
6 VIFZK102 02/2007
Trouble-shooting
Control of functioning:
If heat is not turned on by activating the thermostat, check the residual
current device (RCD) and fuses before contacting an authorized electrician.
Trouble-shooting chart:
Reserved for the electrician!
Control of functioning:
- Check mains voltage on clamps 1 and 2.
- Tighten up clamps 1 and 5.
- Measure the resistance in the heating cable and calculate the output:
P = U2
=52900 W (at 230 V~
R R
- If the sensor wires, clamps 6 and 7, are dismounted, the red indicator
lamp should light up and the thermostat should switch on. If not, the
thermostat is defect.
- Measuring of sensor with ohmmeter must give a certain resistance
value in relation to the ambient temperature - see technical data chart.
- If the sensor wire clamps 6 and 7 are short-circuited, the indicator
should turn green, and the thermostat should be switched off. If not,
the thermostat is defect.
02/2007 VIFZK102 7
8 VIFZK102 02/2007
Temperature range -10°C - +50°C
Operating voltage 180 - 250 V ~ 50 Hz
Switching capacity Cos φ = 0.3 max. 4 A
Switch 10 A
Hysteresis ± 0.2°C
Ambient temperature -30°C to +55°C
Protection class IP 44
Sensor type NTC
Sensor -10°C
0°C
+25°C
+50°C
66 kOhm
42 kOhm
15 kOhm
6 kOhm
LED indicator:
No light
Red
Green
System is OFF.
System is OFF.
Heating is ON, but the set temperature has not
been reached.
Set temperature is reached and the heating is
turned off.
Technical data
You have purchased a Danfoss
heating system, which we are
certain will increase your home
comfort and economy.
Danfoss heating system provides
complete heating solutions with
Danfoss heating cables or EFTM/
EFSM heating mats, EFET/EFIT
thermostats and Danfoss EFCI
fast fitting bands.
If, however, contrary to all
expectations, a problem should
occur with your heating system,
we at Danfoss, with manufactur-
ing units in Denmark, are, as
European Union suppliers, subject
to general product liability rules,
as stated in Directive 85/374/
CEE, and all relevant national laws
which implies that:
Danfoss provides a warranty
for Danfoss heating cables and
EFTM/EFSM heating mats for a 10
year period and all other Danfoss
products for a 2 year period against
defects in material and production.
The guarantee is granted on the
conditions that the WARRANTY
CERTIFICATE on the overleaf is
filled out properly in accordance
to instructions and that the defect
is inspected by, or presented to,
Danfoss or authorised Danfoss
distributor.
Please note, that the wording of
the WARRANTY CERTIFICATE must
be provided in english or local lan-
guage with the ISO code for your
country in the upper left corner of
the front page of the installation
instruction in order to release the
warranty.
02/2007 VIFZK102 9
The Danfoss Warranty:
10 VIFZK102 02/2007
The obligation of Danfoss will
be to repair or supply a new unit,
free of charge to the customer,
whitout secondary charges linked
to repairing the unit. In case of
defective EFTM/EFSM thermo-
stats, Danfoss reserves the right to
repair the unit free of charge and
without unreasonable delay to the
customer.
The Danfoss warranty only covers
connections made by authorised
electricians and installations
performed in accordance with
the installation instruction, and
does not cover faults caused by
incorrect designs supplied by
others, misuse, damage caused by
others, or incorrect installation or
any subsequent damage, that may
occur. If Danfoss is required to in-
spect or repair any defects caused
by any of the above, then all work
will be fully chargeable.
The Danfoss warranty is void, if
payment of the equipment is in
default.
At all times, we at Danfoss will
respond honestly, efficiently and
promtly to all queries and reson-
able requests from our customers.
The above mentioned warranty
concerns product liability whereas
matters in relation to legislation
on sale of goods shall be referred
to national law.
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