2
2
OVERALL CHECKING
• Ensure that
1)
The unit has been mounted solidly and rigid in position.
2)
The piping and connections are leak-proof after the charging.
3)
Proper wiring has been installed.
• Drainage check
–
pour some water into the left side of the drain pan (the drainage is at the right side of the unit).
• Test run:
1)
Conduct a test run on the unit after having perform the water drainage test and the gas leakage test.
2)
Check the following items:
a)
Is the electrical plug inserted firmly into the socket?
b)
Is there any abnormal sounds from the unit?
c)
Is there any abnormal vibrations on the unit or the piping?
d)
Is the drainage of water smooth?
• Con
fi
rm that
1)
The condenser fan is running. Check the warm air blowing from the condensing unit.
2)
The evaporator blower is running and discharge coolair.
3)
The suction (low side) pressure is as recommended.
4)
The remote controller incorporates a 3-minute delay protection in the circuit, whereby the outdoor
condensing unit requires about 3 minutes delay before it can start operating.
SERVICE AND MAINTENANCE
Service Parts
Maintenance Procedures
Period
Indoor Air Filter
1. Remove any dust adhering to the filter by using a vacuum
cleaner or wash in lukewarm water (below 40°C) with a neutral
cleaning detergent.
2. Rinse the filter well and dry before placing it back onto the
unit.
3. Do not use gasoline, volatile substances or chemicals to clean
the filter.
At least once
every 2 weeks.
More frequently
if necessary.
Indoor Unit
1. Clean any dirt or dust on the grille or panel by wiping it with
a soft cloth soaked in lukewarm water (below 40°C) and a
neutral detergent solution.
2. Do not use gasoline, volatile substances or chemicals to clean
the indoor unit.
At least once
every 2 weeks.
More frequently
if necessary.
Indoor Fan
1. Check for any abnormal noise.
When necessary.
CAUTION
Avoid direct contact of any coil treatment cleaners on plastic part. This may cause plastic part to
deform as a result of chemical reaction.
OPERATING RANGE
If the temperature or the humidity is beyond the following conditions, safety devices may work and the air
conditioner may not operate, or sometimes, water may drop from the indoor unit.
COOLING
OUTDOOR UNIT
INDOOR
OUTDOOR
TEMPERATURE
TEMPERATURE
HUMIDITY
RZFC
D
B
21 to 3
5
80%
or below
D
B
21 to
52
W
B
14 to 2
4
DB: Dry bulb temperature (°C)
WB: Wet bulb temperature (°C)
The setting temperature range of the remote controller is 16°C to 30°C.
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