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Algorithm & Control
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2.13 Minimum Off Time Control
To prevent frequent compressor ON/OFF & to allow pressure equalization
•
The compressor will be on 3 minutes stand-by after turning OFF before it is allowed to turn ON.
•
Outdoor fan OFF delay to improve pressure equalization & to prevent refrigerant from entering into
evaporator.
2.14 Auto Restart
Factory pre-set.
Allow unit to automatically resume the same operating mode it was in before a power failure.
To disable the auto random restart function, cut off the jumper J_AUTO as highlighted in attachment.
Please be informed that after disable auto restart function, unit is not able to restart with last state memory
after power resume from failure.
2.15 Auto Random Restart
Unit restarts automatically in 64 different recovery timing patterns (within 180 seconds to 244 seconds) and
operates based on the previous setting (operating mode, temperature setting and fan speed).
To disable the auto random restart function, cut off the jumper J_AUTO as highlighted in attachment.
Please be informed that after disable auto random restart, unit is not able to restart with last state memory
after power resume from failure. Unit will revert to default setting as below:
Default setting
Unit: Off
Temperature: 24°C (75°F)
Fan speed: High
Mode: Cooling
Applicable for PCB W_2_03D , W_2_03E & W_2_03E_M (For all class 09/12)
Cut off the jumper
J_AUTO to disable the
Auto Restart or Auto
Random Restart function