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Air-to-water Heat Pump Split Versati
98
SPLIT TYPE
◆
IPM or PFC Over-temperature Protection(Code:"P8")
Is the IPM or
PFC module of
the driver board AP4
tightened?
Replace the
driver board AP4
“Overtemp.-mod.” is
displayed on the wired
controller
P8 is displayed in the
mainboard 88
Indicating Lamp
Work Normally
Tighten the IPM or
PFC module
◆
DC Busbar Over-voltage Protection(Code:"PH") ; DC Busbar Under-voltage Protection (Code:"PL")
Is input voltage ranged
from 185VAC to 264VAC?
Replace the driver board AP4
“DC over-vol.” or “DC
under-vol.” is displayed
on the wired controller
PH or PL is displayed
in the mainboard 88
Indicating Lamp
Work Normally
Please cut off
the power and notify
the power company.
Replace the
driver board AP4.
Does it work normally?
Note: three-phase input voltage is in the range from 320VAC to 475VAC.