Step 14 Cool And Heat Modes Operation Test - Samsung AJ040MCJ2EH Installation Manual

Installation Procedure
Setting to Cool or Heat only mode
This function enables the indoor units connected to the
outdoor unit to operate in a specific mode.
AJ∗∗∗MCJ∗EH
Set the indoor
Switch
mode
Cooling and
Heating
Only Cooling
Only Heating
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English
Switch Selection
3 4
OFF OFF
ON ON
ON OFF
OFF ON
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
Cool
Heat
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.
Temperature
Approximately 8 ℃
Approximately 12 ℃