AUX E Series, Руководство по обслуживанию

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AUX air conditioner service manual
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be in low temperature, while those with small refrigerant flow will be in higher temperature, so
temperature difference between two circuits will be relatively large, which will produce a large
number of condensate in the former fins. Condensate is blown outside the outlet with wind. In
addition, cold and hot air meet in wind pipe and steam condenses in air pipe, causing water leakage.
⑷ Im
proper installation: newly installed air conditioner or air conditioner installed in winter may leak
because of non-levelness of air conditioner or improper wrapping of drain pipe or connection joints.
Case 1: Filter was blocked by dirt
Unit Model: ASW-H12A4/M
Phenomena
： Indoor unit leaked water
Cause Analysis: Cause Analysis: after air conditioner operated in cooling mode for some time, water
dropped between front panel and upper air outlet grille, but wind amount was relatively small. We
opened the cover, and found that filter was blocked by dirt and wind amount decreased, so evaporate
temperature fell, evaporator was frosted and connected with dirt filter. Removed the filter, turned on
air conditioner again, we found wind amount increased and water didn’t leak again.
Solution: we cleaned filter, installed it again, and asked client to clean and maintain the filter
regularly.
Experience conclusion: air conditioner is likely to leak if filter is dirty and blocked, so we shall
instruct client to clean filter and maintain air conditioner regularly. In addition, it is difficult to
distinguish frost of evaporator and frost due to refrigerant lack of system. If system lacks refrigerant,
evaporator will be frosted, generally on the inlet; if filter is blocked, air returned tube (low pressure
tube) of system will be frosted.
Case 2: Indoor unit leaked water in low wind mode
Unit Model: ASW-H12B4/TD
Phenomena
： Beads dropped form air outlet
Cause analysis: according to client, water was blown form air outlet after air conditioner run for 2 or 3
hours, maintenance personnel observed the phenomena and found that tiny bead was blown from air
outlet when air conditioner was in low wind mode. Air conditioner was used in a 15 m
2
room, and set
temperature was 17 Celsius Degree, evaporation and exchange amount decreased when temperature
dropped, so too much condensate was produced and blown outside the air outlet.
Solution: changed low wind mode to high wind mode (or automatic mode), set temperature on 24
Celsius Degree, condensate never occurred again.
Experience Conclusion: foregoing fault was caused by physical factors, so the only thing need do is to
explain to client. Fog blown from air conditioner is more common in rain season, in addition, in
southern China, raininess, low ambient pressure and high humidity may result in such problem. To fix
the problem, we should check evaporator and fan blades to see if they’re clean; if they’re clean, we
should operate air conditioner in high wind and high temperature mode.
Case 3: Guiding channel was blocked and leaked water
Unit Model
: ASW-12A4/M