Circutor AFQm, Instruction Manual, Page: 204 / 230

204
AFQm
Instruction Manual
ENGLISH
10.2.- COOLING FANS
The cooling fans must operate correctly to avoid overheating in the active filter com-
ponents.
The device has high-speed cooling fans, with an estimated useful life of 40000 hours.
Nevertheless, this useful life can be shortened depending on the conditions of use (temperature, hu-
midity, environmental pollution). In the event that the fans lose their efficiency, the device’s perfor-
mance will deteriorate.
The following symptoms in the filter behaviour could indicate a deterioration of the fans:

Increase in fan noise.

Increase in temperature of the device under the same environmental conditions and load.

The
AFQm
regularly indicates a temperature alarm.

Reduction in the filtering capacity.
The set of fans must be replaced if they have exceeded their useful life or show signs of deterioration.
In such cases,
Circutor
will provide a spare part that consists of a set of fans so that the device can be
repaired quickly and easily.
For an installation with devices in parallel, all of the fans must be changed at the same
time.
10.3.- CHANGE OF COOLING FANS: AFQm OF 30A
Table 44: Tools needed (AFQm-xxx-030M)
Tools needed
Fan assembly replacement AFQm-xxx-030M , Code: 920121
2
Screwdriver for PH2 head screws
3
Screwdriver for
Allen 3
head screws
Figure 90: Location of the cooling fans.