Hitachi RAC-10CZJ, Instruction Manual

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ENGL
ISH
CAUTION
Ensure that the unit is not in operation and all power supply has been disconnected before cleaning the
units.
Pre-filter
Pre-filter are installed to remove the indoor dust particles hence they should be kept clean at all times.
They should be cleaned at each machine operation cycle of approximately 100 hours. Excessive dust collected at
Pre-filter will block the air fl ow , reduce the cooling capability and could produce noise. Therefore the Pre-filter
should be cleaned as per instructions given below:
Cleaning Instructions
(1) Removing the Pre-filter
•
While holding both edges of the front panel, open up and lift the front panel and push in to park at the secured
position
Front panel
Front cabinet
•
Slightly lift up the Pre-filter , release the latch clips [2 places] located at the bottom of the front cabinet and
move the Pre-filter downwards to remove it from the unit
(2) Use a vacuum cleaner to vacuum clean the dust accumulated at the Pre-filter . If the accumulated dust
is too much to be removed by vacuum cleaning, apply mild detergent and fl ush the dust from the Pre-filter
with water. After thorough rinsing, leave the Pre-filter lat a cool shaded place to dry.
(3) Re-install the Pre-filter to its original position (With “FRONT” marker facing front). Slightly lift up the
opened front panel and close it by returning it to its original position
(4) Each year before using the air conditioner unit, clean the heat exchanger (evaporator) with a fi ne soft brush or
a vacuum cleaner and take care to avoid damaging the evaporator fins
Front panel
Latch clip
CAUTION
•
Do not use hot water (40° C and above) to rinse the Pre-filter, otherwise the screen will warp and
get distorted. After rinsing, shake the Pre-filter to rid off all remaining water droplets and place it at a
cool shaded place to dry. Avoid placing the Pre-filter under direct sunlight, otherwise the screen will
warp and get distorted.
Do not operate the air conditioner unit without the Pre-filter installed, otherwise the ingress of dust
into the air conditioner unit will cause breakdowns.
MAINTENANCE OF THE UNITS
Pre-filter