7
04.06.2019
CHEM-PROOF STATIONARY FAN
WPA-CHEM
Connection to the power supply system ought to be carried out aby an
authorised person with qualifications, according to the valid regulations and indications
in Fig. No.5
.
Prior to the start-up, check the connection between the motor and the PE protective cable, and
the correctness of the electrical connections.
The impeller rotation sense ought to be according to the arrow on the housing, in case
of incompatibility change the phase con-nection sequence (3-phase motors only)
.
Before the first start-up, check the correctness of the connections between the fan and the ven-
tilation dust. Additionally, check if there are some pollutants / foreign objects (solids) in the fan
or ventilation ducting.
7.
Operational Use
The construction do not require any additional maintenance after the start-up. If the place of
operational use is changed
– repeat the steps according to installing and adapting the venti-
lation system to the new application and conditions
(see Section 6 of the
present Use and
Maintenance Manual).
In case when any symptoms of incorrect work of the device are noticed, (not typical noises
or visually), follow steps as in Section 8.
8.
Troubleshooting Guide
Table No.3
Problem
Possible reason
Corrective action
1
.
Significant and sudden decre- Obstacle objects reducing the air
Clean the ventilation ducts.
ase of the intake air occurs.
flow got stack at the inlet grill.
2
.
Sudden vibrations of the fan
Obstacle objects reducing the air
Disconnect the fan from
are occurring.
flow got stack within the impeller.
the power supply system,
and remove the hindrance.
The impeller is defective.
Replace the impeller with a
motor for a new one.
3
.
Noisy work of the fan along
Incorrect impeller rotation sense.
Change the impeller rotation
with decreased flow efficiency.
sense by changing the phase
connection sequence
(three-phase fans only).
9.
Maintenance
In the aspect of operational use, the fan construction guarantees its efficient function without
continuous routine technical supervision. Nevertheless, during the operation carry out the
routine maintenance steps.
Once a year submit the fan to technical revision
– the electrical motor ought to be examined
according to the instructions of the motor manufacturer.
Every several years, check the mechanical and electrical connections. The electrical instal-
lation ought to be checked according to the standard PN-HD 60364-6
“Low-voltage electri-
cal installations
– Part 6: Verification”.
Moreover, if any defective function of the unit or failure is noticed
– undertake its additional
control.