FläktGroup eQ PRIME 005, Commissioning, Page: 58 / 64

58 FläktGroup DC_9355GB 20180119_R0 We reserve the right to make changes without prior notice
Alarm guide
Continued on next page
Alarms Alarm text Cause Action Type
Frosting rotor Hrec frost pressure The differential pressure
sensor over the rotor
measures a large pressure
difference, usually caused
by frosting of the rotor.
• Check the measured value using
the handheld terminal.
• Check the heat exchanger. Is it frosted?
• Adjust the frosting controller.
A
Deviation
room temperature
Room tmp
dev alarm
The measured temperature
from the room sensor has
deviated from the setpoint
for an abnormally long time.
• Check the measured value using the hand-
held terminal.
• Check the functions in the control sequence
is the heat exchanger functioning correctly?
Are the pilot valve and actuator functioning
correctly (connection)? Is there access to
heating and cooling? Is the electric heater
functioning correctly (connection)?
• Is there another factor in the room that may
have caused the temperature deviation (e.g.
open windows, incorrectly positioned sensor)?
• If necessary, the alarm limit and alarm delay
can be adjusted using the handheld terminal.
B
Deviation supply air
temperature
Sply tmp dev
alarm
The measured temperature
from the supply air sensor
has deviated from the
setpoint for an abnormally
long time.
• Check the measured value using
the handheld terminal.
• Check the functions in the controlsequence.
Is the heat exchanger functioning correctly?
Are the pilot valve and actuator functioning
correctly (connection)? Is there access to
heating and cooling? Is the electric heater
functioning correctly (connection)?
• Is there another factor that may have caused
the temperature deviation (e.g. incorrectly
positioned sensor)?
• If necessary, the alarm limit and alarm delay
can be adjusted using the handheld terminal.
B
Deviation extract air
temperature
Exh tmp dev alarm. The measured temperature
from the extract air sensor
has deviated from the
setpoint for an abnormally
long time.
• Check the measured value using
the handheld terminal.
• Check the functions in the control sequence.
Is the heat exchanger functioning correctly?
Are the pilot valve and actuator functioning
correctly (connection)? Is there access to
heating and cooling? Is the electric heater
functioning correctly (connection)?
• Is there another factor that may have caused
the temperature deviation (e.g. open
windows, incorrectly positioned sensor)?
• If necessary, the alarm limit and alarm delay
can be adjusted using the handheld terminal.
B
Efficiency alarm Hrec efficiency The measured efficiency of
the rotor is lower than the
set threshold value.
• Check the temperatures using the handheld
terminal.
• Check whether the heat exchanger is
frosted or soiled.
• Check the temperature sensors' location.
B
I/O double
configured
Doubled config
IO: Yes
Two or more functions are
configured on the same
input or output.
• Contact FläktGroup
tel.: +46 36 193003.
A
I/O not configured Not config IO: Yes One or more functions have
not been allocated outputs
or inputs.
• Contact FläktGroup
tel.: +46 36 193003.
A
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