35
English
Instal
lation Pr
oc
edur
e
Step 14 Cool and Heat modes
operation test
After installing the outdoor and indoor units, test the
Cool
and
Heat
modes.
•
When you test the
Cool
mode, set the set temperature
of the indoor unit to the lowest one. And when you test
the
Heat
mode, set the set temperature of the indoor
unit to the highest one.
•
Check if each indoor unit operates normally and
then also check if all indoor units operate normally
together.
‐
Check both of the Cool and Heat modes.
•
About 20 minutes after the air conditioner is started,
check the temperature difference between the air
inlet and outlet of the indoor unit. If the temperature
difference is larger than the value given in the
following table, the operation is normal.
Mode
Temperature
Cool
Approximately 8 ℃
Heat
Approximately 12 ℃
CAUTION
•
If the outdoor unit is turned off and then immediately
turned on again, the compressor does not operate for
about 3 minutes.
•
During the Cool mode, frost may temporarily develop
on valves and other parts.
NOTE
•
You can also test the Cool or Heat Try run using K1
button.
Step 15 Optional: Setting to Cool or
Heat only mode
This function enables the indoor units connected to the
outdoor unit to operate in a specific mode.
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Set the indoor
mode
Switch
Switch setting
3
4
Cooling and
Heating
OFF
OFF
ON
ON
Only Cooling
ON
OFF
Only Heating
OFF
ON
