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ENGLISH
Setting outdoor unit option switch and key function
5) After selecting the function for options, press and hold the K2 switch for 2 seconds. Edited value of the option will be
saved when entire segments blinks and tracking mode begins.
• Edited option will not be saved if you do not end the option setting as explained in above instruction.
CAUTION
❋
While you are setting the option, you may press and hold the K1 button to reset the value to previous setting.
❋
If you want to restore the setting to factory default, press and hold the K4 button while you are in the option setting mode.
- If you press and hold the K4 button, setting will be restored to factory default but it doesn't mean that restored setting is
saved. Press and hold the K2 button. When the segments shows that tracking mode is in progress, setting will be saved.
Option Item Input Unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks
Channel address Main 0 0
AU
Automatic setting
(Factory default)
Address for classifying the
product from upper level 0 ~ 15
controller (DMS, S-Net 3, etc.)
0 ~ 15
Manual setting for channel
(0~15)
Pump Down
• After installing the product, be sure to perform leak tests on the piping connections. After pumping down refrigerant
to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the connected pipes.
- Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe or an unconnected
or incorrectly connected pipe. Failure to do so may cause air to flow into the compressor and too a high
pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction.
WARNING
The object of pump down
X You can reduce as much refrigerant leakage as possible during product movement or repair by collecting the refrigerant
to the outdoor unit.
Caution for pump down procedure
X The amount of refrigerant that can be put into an outdoor unit is limited due to the slim shape of the outdoor unit.
X Before performing pump down, most of the refrigerant should be put into an empty container at first. The maximum
amount of refrigerant that can be put into the outdoor unit is 5kg(176.4 oz).
X When the amount of system refrigerant exceeds the amount of maximum receptive capacity, compressor trip or damage
by fire might be caused.
Pump down procedure
X Before performing pump down, collect the refrigerant into the empty container.
X Turn off the manifold gage.
X Turn off the service valve of liquid pipe side.
X Press K2 button on the outdoor unit PCB three times. (‘
’ is displayed on outdoor PCB LED.)
X When the compressor starts operating, observe low pressure using manifold gage.
X When the low pressure goes below 0 MPa(gauge pressure), turn off the service valve at gas side and finish the pump down
operation. (To finish pump down operation, press K2 button one more time or press K3 button one time to be initiated.)
• When putting refrigerant into the refrigerant container, you must use the exclusive container that can be
recharged. When remodeling normal refrigerant container illegally, explosion might occur.
CAUTION
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