FlaktWoods eq Controls - Page 52

52Fläkt Woods 8666 GB 2010.06
Specifications are subject to alteration without notice
Installation and maintenance instructions
Control equipment
Efci-
ency
alarm
Recovery
efciency
Recovery efciency low Check the measured values and calculation.
Check for any frost/dirt formation
Check the location of sensors
Cong-
uration
Double cong-
uration IO: Yes
One/several functions with the
same output or input signal
Contact Fläkt Woods service Contact FläktWoods service. A
IO not cong-
ured: Yes
One/several functions which
have not been allocated an
output or input signal
Contact Fläkt Woods service Contact FläktWoods service
Alarm Expan-
sion modules:
Alarm
No contact with the IO
expansion module in the
control panel or frost coil
Check the connection of the expansion module to
the control cabinet. Contact FläktWoods service
Check the connection of the expansion
module to the control cabinet.
Contact FläktWoods service
Modbus Modbus Com-
munications:
Alarm
Incorrect connection of
Modbus. E.g. Energy meter,
Econet
Check the communication cable Check the communication setting and
connection
B
Extract
air
pressure
sensor
Extract air pres-
sure: Alarm
Duct pressure outside per-
mitted range
Check and calibrate pressure sensor.
Replace defective sensor. Check the alarm limits
Check strapping/connections
Supply
air
pressure
sensor
Supply air
pressure: Alarm
Duct pressure outside per-
mitted range
Check and calibrate pressure sensor.
Replace defective sensor. Check the alarm limits
Check strapping/connections
Manual
opera-
tion
Manual opera-
tion: Alarm
Alarm after a set time when
activating function(s) in
manual mode.
Reset outputs in auto mode Reset outputs in auto mode
Humid-
ity
Exception room
humidity
Humidity outside range Check the measured values and sensor Check the location of the sensor and
alarm limits
Exception sup-
ply air humidity
Humidity outside range Check the measured values and sensor Check the location of the sensor and
alarm limits
Alarm pump
humidity
Alarm from humidier
cabinet
Check the pump in the humidier.
Check the motor circuit breaker.
Check the contact function and motor
circuit breaker
Outdoor humid-
ity relative:
Below range
Outdoor air humidity sensor
not connected
Check the measured values and for
an open-circuit
Check connections
Room humidity
relative:
Below range
Room air humidity sensor
not connected
Check the measured values and for
an open-circuit
Check connections
Supply air hu-
midity relative:
Below range
Supply air humidity sensor
not connected
Check the measured values and for
an open-circuit
Check connections
Zone
control
Zone controller:
Alarm
Alarm in Zone controller/
External fan
Check the alarm list in Zone control/external fans Check the connection of sensors and
accessories for zone control/external fans
C
Aux. alarm The connected function is
activated and an alarm is
set off
Contact Fläkt Woods service Contact Fläkt Woods service
Display Conn. Lost Display has no BUS comm.
with DUC
Disconnect and connect the quick connector
from/to the control panel
Disconnect and connect the quick connector
from/to the control panel. If the fault recurs,
contact Fläkt Woods technical sales support
cont. Alarm list
Alarm Alarm text Cause Action – Operation Action – Startup Type