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FPZ SCL K07R Use Instructions page 16

Lateral channel blowers - exhausters
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1.7
TROUBLESHOOTING
Problem
The unit does not start
Air flow rate zero or
insufficient
Power absorption exceeds
the maximum allowed
Delivery air temperature high
Excessive noise
Abnormal vibrations
ENERGOEKONOM spol. s r.o., Wolkerova 433, CZ-250 82 Úvaly, Czech Republic, Tel.: +420 281 981 055, info@energoekonom.cz, www.energoekonom.cz
Cause
The electric wiring is incorrect.
The power supply voltage is not suitable.
The impeller is stuck.
Rotation direction incorrect.
Intake filter clogged.
Wiring incorrect.
Voltage drop on the power supply.
Intake filter clogged.
Deposits have built up inside the unit.
The unit is operating at a pressure and/or vacuum that
exceeds that allowed.
The unit is operating at a pressure / vacuum that exceeds
that allowed.
Intake filter clogged.
Deposits have built up inside the unit.
Intake and/or delivery piping clogged.
Air temperature at intake exceeds 40°C.
The soundproofing fabric is damaged.
The impeller is scraping against the chassis:
a.
The unit is operating at a pressure / vacuum that
exceeds that allowed.
b.
The play allowed during assembly has been
reduced due to internal deposits (dust, impurities
in the pipes, process residue, etc.).
Bearing worn.
Installation position of the unit not suitable.
The impeller is damaged.
Deposits have built up on the impeller.
The unit is fixed incorrectly.
GB - 16/39
Solution
Check the electric wiring against the wiring diagram in
the terminal board box.
Check that the power supply voltage, measured at
the motor's terminals, is within ± 5% of the nominal
voltage.
Get FPZ personnel to repair the machine.
Check that the direction of rotation is as indicated on
the motor's fan cowling.
Clean or replace the cartridge.
Check the electric wiring against the wiring diagram in
the terminal board box.
Return the power supply voltage at the terminals to
within the values allowed.
Clean or replace the cartridge.
Get FPZ personnel to clean the machine internally.
Adjust the plant and/or the regulating valve to reduce
the pressure differentials.
Adjust the plant and/or the regulating valve to reduce
the pressure differentials.
Clean or replace the cartridge.
Get FPZ personnel to clean the machine internally.
Remove the obstructions.
Use a heat exchanger to reduce the air temperature
at the intake.
Get FPZ personnel to replace the soundproofing
fabric.
Adjust the plant to reduce the pressure differentials.
Get FPZ personnel to clean the machine internally.
Get FPZ personnel to replace the bearing.
Install the units on structures that cannot transmit or
amplify the noise (tanks, steel plating, etc.).
Get FPZ personnel to repair the machine.
Get FPZ personnel to clean the machine internally.
Fix the unit on anti-vibration supports.

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