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Checking GFCI
It is important that the GFCI has been
checked for correct installation and function.
To check the GFCI: Testing can only be
performed if the thermostat has a heat-
ing demand. Adjust the set point until the
heating symbol (SSS) appears, use the (
to increase the heating demand. Wait 10
secs. to let the thermostat work according to
the new set point. Press the button "TEST".
The test is conclusive if the red light on the
thermostat lightens, and the display signs
disappear. If this does not occur, check the
installation. Press on RESET button to reset
the GFCI. The red light should disappear and
3. Reset to factory setting
Press the pin button for 3 secs. and the thermostat returns to factory
settings.
Factory settings
With fl oor sensor
77˚F / 25˚C
68˚F / 20˚C
SCALE
˚F
4. Failure codes
E0
= Internal failure, replace thermostat
E1
= Built-in sensor short-circuit or dis-
connected, replace thermostat
E2
= External sensor short-circuit or
disconnected
5. Technical data
Supply:
120/240 Vac 50/60 Hz
Load:
16A maximum (resistive load)
Power:
1.920 W at 120 Vac
3.840 W at 240 Vac
GFCI:
Class A (5 mA trip level)
4
All manuals and user guides at all-guides.com
the display will return to normal appearance.
If the test fails, check your heating cable and
the thermostat. The GFCI test should be car-
ried out monthly.
If the GFCI trips in normal operation, without
pressing the TEST button, there could be a
),
ground fault! To check whether it is a ground
fault or a nuisance tripping, press RESET. If
this cause the red light to shot off and not
comes on again, it was a nuisance tripping
and the system is functioning. If this cannot
be done there is a ground fault! Check your
heating cable, the sensor cable and the ther-
mostat. Exchange the defective part.
Built-in sensor
68˚F / 20˚C
59˚F / 15˚C
˚F
Temperature range:
+5 to +40°C,
+40 to +104˚F
Amb. Temperature range:
Thermostat:
0 to +40°C,
+32 to +104˚F
GFCI:
-35 to +65°C,
-31 to +149˚F
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