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8.4. WIRING DIAGRAM
Factory installation
Installed on site
Linear motor
Smoke extract
fan motor
Limit switch
Safety switch
The cable connection from fan terminal box to the fan motor must be
made using a fire resistant cable. Cable entries in the casing must be
sealed with fireproof sealant.
It is advisable to only use the hatch limit switch to provide a signal as an
indication that the "hatch is closed" (for information only). A motor start
signal should be provide by a separate control circuit. To ensure correct
operation, the control logic must ensure that the fan starts at least 30
seconds after the linear actuator motors (which open the hatch or lid)
have been energised.
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Linear motor
Safety switch
Black (L-OPEN)
Brown (L-CLOSED)
Blue (N)
Yellow (DATA A)
Green (DATA B)
Max 3 min run time
NOTE!
The approximate hatch closing time
is 3 minutes, after which the power
must be turned off.
9. COMMISSIONING
9.1. PREPARATION
Open the hatch and connect the motor rods to the fastenings. Connect the mains to the motors to close the hatch
NOTE!
Make sure that it is also possible to open the hatch after using a
temporary power supply (eg disconnect linear motor shafts after
test run).
9.2. SAFETY CHECKING
Make sure that the fan motor and hatch motors are disconnected from the mains. Rotate the shaft and check that
the impeller can move freely. Make sure that there are no foreign objects in the fan or in the ducting. Also check
that there is no unusual noise in the fan. Check that the installation work has been carried out in accordance with
the relevant regulations. All necessary protective devices must be installed.
Check also, that the unit design airflow is being met. Ensure that all other regulations related to fire safety are
followed.
The fan may only be commissioned after all proper procedures have been followed and all necessary inspections
have been carried out.
9.3. TEST RUN
Briefly switch on the power supply to the motor to check whether the fan impeller rotates in the correct direction.
Operate the fan for at least 30 minutes. If the impeller is rotating in the correct direction shown with the arrow, the
fan may be switched on. Check that no abnormal mechanical sound and no performance surging occurs, if so, turn
it off immediately.
NOTE! During the test run, please ensure that the fan has an adequate supply of replacement air.
During the installation process, it is important to check that the air velocity (across the hatch opening) does
not exceed 10 m/s. If the air velocity does exceed this value, this could result in damage to the door hinge and
actuation mechanisms.
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