8
Problem
Possible reasons
Elimination
The fan supplies more
air than expected.
The resistance
values used during
the ventilation
network calculations
are too conservative.
The cross section of
air ducts increased
and their number
reduced during the
installation.
Wrong choice of the
fan.
Check the air ducts for proper shape
and cross section as well as for any
dampers present.
Throttle down the network (add
aerodynamic resistance to the air duct
network).
Replace the fan with a unit of proper
standard size.
Повышенный шум
или вибрация как в
самом вентиляторе,
так и в сети.
Loose screw
connections.
No flexible joints
between the fan and
the ventilation
network on the
suction and
discharge sides.
Loose connection of
valves and dampers
to the air ducts.
Impeller or air duct
contamination with
foreign objects or
debris.
Worn bearings.
Unstable power
supply, unstable
motor operation.
Check the screw connections for
proper tightness.
Install flexible joints.
Tighten up the fasteners of valves and
dampers.
Clean the impeller or the air ducts
from foreign objects or debris.
Replace the bearings.
Check the stability of power supply
parameters and electric motor
operation.
Summary of Contents for Tower A 200 2E
Page 1: ...Tower A L User s manual ...
Page 10: ...10 ...
