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8.3 Fan Replacement
The cooling fan is a wearing part, and its service life is closely related to the environment and
maintenance. The general service life time is:
Device name
Designed service life
Fan
4 - 5 years
EXPLICATION
The designed service life is the time when the fan is used under the following conditions. The
user can calculate the time the fan needs to be replaced based on the operating conditions.
Ambient temperature: The annual average temperature is about 30
°
C.
Load rate: 80% or less
Operation rate: 20 hours or less / day
Possible reasons for damage: bearing wear, blade aging
Replacement criteria: Whether there are cracks in fan blades, etc. Does the sound vibrate
abnormally when the machine is turned on?
Fan replacement method as below.
1) Fan replacement, for models from 2.2kW to 11kW
a. Disassemble the fan
Press the buckle on the fan cover to remove the fan cover, then lift the fan upwards, and
unplug the power cord from the socket to complete the disassembly.
Buckle
Fan cover slot
Fan plug and
socket
A-TS
Figure 8-1 Fan disassembly (2.2kW to 11kW)
b. Fan installation
Please follow the reverse steps of disassembly to install: insert the fan power cord plug into the
socket, and then put the fan into the body installation part (pay attention to distinguish the
positive and negative directions of the fan). When putting it in, be careful to align the four fixing
holes at the bottom of the fan with the positioning posts, and finally insert the buckle on the fan
cover into the slot of the body, and press the fixing buckle to complete the installation. After
replacing the fan, make sure that the correct direction of the fan is blowing upwards.
