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Trial operation and the performance
5-minute delay function
Cooling/heating operation
Heating mode characteristic
The unit operation condition
Protection device (such as high pressure switch)
Defrosting in heating mode
•
If starting up the unit after being powered off, the compressor will run about 5 minutes later
against being damaged.
•
Indoor units can be controlled individually. Indoor units under different VP can achieve cooling
and heating simultaneously.
•
Indoor units connected to the same VP can not achieve cooling and heating simultaneously or
can not do heating mode. If cooling and heating simultaneously, the later set indoor unit will be
in stand-by status, and the earlier set indoor unit can run normally. If the indoor units are not
connected to the VP device, it can only do the cooling mode.
• When the system manager fixes the operating mode on cooling or heating, the units can not
run in other mode.
•
In operation if outdoor temp. arises, indoor fan motor will turn to low speed or stop.
•
To use the unit properly, please operate the unit under the allowed condition range.
If operating beyond the range, the protection device will act.
•
The relative humidity should be lower than 80%. If the unit runs at the humidity over 80% for a
long period, the dew on the unit will drop down and the vapour will be blowed from air outlet.
• High pressure switch is the device which can stop the unit automatically when the unit runs
abnormally.
When the high pressure switch acts, the cooling/heating mode will stop but the running LED
on wired controller will be light still. The wired controller will display failure code.
• When the following cases occur, the protection device will act:
In cooling mode, air outlet and air inlet of outdoor are clogged.
In heating mode, indoor filter is sticked with duct; indoor air outlet is clogged.
When protection device acts, please cut off the power source and re-start up after eliminating
the trouble.
• In heating mode, outdoor defrosting will affect the heating efficiency. The unit will defrost for
about 2~10 minutes automatically, at this time, the condensate will flow from outdoor, also
in defrosting, the vapour will appear at outdoor, which is normal. Indoor motor will run at low
speed or stop, and outdoor motor will stop.
