Troubleshooting
4-40 Samsung Electronics
■ 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.
• 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
Heat
• 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.
CAUTION
• You can also test the Cool or Heat Try run using K1 button.
NOTE
■ 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.
You can set each mode with Keys on the Main PCB in the outdoor unit.
Set mode SEG1 SEG2 SEG3 SEG4
Cooling and Heating
0 0
0 0
Only Cooling 0 1
Only Heating 0 2
• Default value: Cooling and Heating mode
To Next Page
Loading...