393805
‐
2
Rev
0:
05.05.2017.
KJK
We
reserve
the
right
to
change
technical
data
without
notice.
http://www.ensy.no
Page 28
5.
Alarms
Alarms
on
Ensy
AHU
units
Critical
alarms.
Red
flashing
lights
in
the
control
panel
Alarm
Possible
causes
Description
of
what
will
happend
Reset
of
alarm
Motor
protection
Supply
Absence of signal from
the fan
EV and RO is
turnined off.
TV and AV turns off
after 1 min
Fan turns «
OFF
» and then back
to «
NORM
»
Motor
protection
Extract
Sensor
AT
open
The sensor is broken.
All functions are
deactivated and the
unit will stop
Automatic reset after
replacement
Sensor
OET
open
Overheating
The temperature has
excceded 55°C
Heater (EV) turns off
Automatically when temperature
sinking to 25°C
(earlier 20°C)
Fire thermostat
Temperature over
thermostat excedeed
110°C.
All functions are
deactivated and the
unit will stop.
Manual reset of the fire
thermostat.
Low voltage
Voltage drops below
200 V
All functions are
deactivated.
Automatically after voltage rises
to 212 V
No connection from
control panel to the
master control board.
All functions are
deactivated.
Automatically when contact is
established again
Less
critical
alarms.
Yellow
flashing
lights
in
the
control
panel
Alarm
Possible
causes
Description
of
what
will
happend
Reset
of
alarm
Sensor
EAT
open
Short circuit or breach
of cable.
All functions are
deactivated
Automatic reset after
replacement
Sensor
AVK
open
Sensor
UTE
open
Frost alarm
Supply air from unit is
under 5°C.
Master card ver.034
or higher is needed
for this to be
implemented. Display
ver.021 or higher is
needed to show in
the display.
All functions are
deactivated
The unit starts up again when
supply air temperature has risen
to 9°C.
The alarm must be manually
reset by pressing "enter" (button
4) in the alarm menu.
