I n s t a l l a t i o n a n d u s e r m a n u a l
HP 900/1100/1500 BLACK Inverter
V e r s i o n : 0 1 / 2 0 2 2
P a g e
2 8
HEA
T
P
U
M
P
M
I
C
RO
W
E
LL
H
P
Inv. Overheating Warn
F22
Transducer temperature is too high
Check and adjust the current
measurement
Comp. OverCur. Warn
F23
Compressor electricity is large
The compressor over-current
protection
Input Over Cur. Warn
F24
Input current is too large
Check and adjust the current
measurement
EEPROM Error Warn
F25
MCU error
Check whether the chip is damaged
Replace the chip
V15V over/under
voltage fault
F28
The V15V is overload or undervoltage
Check the V15V input voltage in range
13.5v~16.5v or not
Parameter list:
Meaning
Default
Remarks
Refrigeration target temperature set point
27°C
Adjustable
Heating the target temperature set point
27°C
Adjustable
Automatic target temperature set point
27°C
Adjustable
4.13
Main PCB board (030-P-BP6II)
Controller interface diagram and definition