Nibe F1355 Operating Manual page 60

No. Text in display
323 Flt: EQ1-BT25
350 Sensor fault on
BT50 room sensor.
351 Failed sensor calib-
ration
353 Failed sensor calib-
ration
359 Int temp OPT error
361- Sensor fault: EPxx-
367 BT3 return line
sensor
369- Sensor fault: EP12-
370 BT57/BT58
371 Freeze risk EP12-
BT58
420 Inverter alarm type
II
422 Inverter alarm type
II
426 Inverter alarm type
III
60 Chapter 5 | Disturbances in comfort
Cause Heat pump action.
The input for the Calculation of cooling
sensor receives un- DM performed with
reasonably high or EQ1-BT25 is set to 0.
low value for longer
than 2 seconds.
The input for the
sensor receives an
unreasonably high or
low value for longer
than 2 seconds when
the sensor is activ-
ated.
Delta BT10- Change from auto to
BT11>|2K| after calib- manual brine pump
ration. speed.
Delta BT3-BT12>|2K| Change from auto to
after calibration. manual pump speed.
Alarm from the gas None.
boiler (GBM).
The input for the
sensor receives un-
reasonably high or
low value for longer
than 2 seconds.
The input for the None.
sensor receives un-
reasonably high or
low value for longer
than 2 seconds.
Ground water sensor Blocks operation.
BT58 is below its lim-
it.
A temporary commu- The compressor is
nication alarm has stopped.
occurred.
A temporary alarm The compressor is
on the inverter's ex- stopped.
ternal input has oc-
curred.
A temporary internal The compressor is
fault in the inverter stopped.
has occurred.
Resets automatic- May be due
ally when to/check
■
Open-circuit or
short-circuit on
sensor input.
■
Defective sensor
■
Resets automatically Open-circuit or
when the sensor has short-circuit on
worked continuously sensor input.
for 60 seconds.
■
Defective sensor
Manual.
Manual.
Manual.
■
Resets automatically Open-circuit or
when the sensor has short-circuit on
worked continuously sensor input.
for 60 seconds.
■
Defective sensor
■
Resets automatically Open-circuit or
when the sensor has short-circuit on
worked continuously sensor input.
for 60 seconds.
■
Defective sensor
Resets automatically
when the temperat-
ure rises above its
limit value +2°C.
Resets automatically Main and group fuses
60 seconds after rec- and their cable con-
tified alarm. nections.
Resets automatically Main and group fuses
60 seconds after rec- and their cable con-
tified alarm. nections.
Resets automatically Main and group fuses
30 minutes after rec- and their cable con-
tified alarm. nections.
■
Perform a com-
plete restart of the
heat pump. See
page 50.
NIBE F1355