DC Inverter U-match Series Floor Ceiling Type Unit
24
20
H5
IPM protection
21
H6
DC fan motor error
22
H7
Drive desynchronizing protection
23
Hc
Pfc protection
25
Lc
Activation failure
26
Ld
Compressor phase sequence protection
27
LE
Compressor stalling protection
28
LF
Power protection
29
Lp
Indoor and outdoor mismatch
30
U7
4-way valve direction changing protection
31
P0
Drive reset protection
32
P5
Over-current protection
33
P6
Communication error between main control and drive
34
P7
Drive module sensor error
35
P8
Drive module over temperature protection
36
P9
Zero passage protection
37
PA
AC current protection
38
Pc
Drive current error
39
Pd
Sensor connecting protection
40
PE
Temperature drift protection
41
PL
Bus low voltage protection
42
PH
Bus high voltage protection
43
PU
Charge loop error
44
PP
Input voltage abnormality
45
ee
Drive memory chip error
Note: When the unit is connected with the wired controller, the error code will be simultaneously
shown on it.
(2). Instructions to the Error Indicating Lamps on the Panel of the Floor Ceiling Type Unit.
States of the Indicating Lamps:
① .
Indicating Lamp of “POWER”: The indicating lamp will
shine when power on, while it will go out when power off.
② .
Indicating Lamp of “COOL” :
The indicating lamp will shine when “COOL” is activated,
while it will go out when “COOL” is deactivated.
③ .
Indicating Lamp of “HEAT”:
The indicating lamp will shine when “HEAT” is activated,
while it will go out when “HEAT” is deactivated.
④ .
Indicating Lamp of “TIMER”:
The indicating lamp will shine when “TIMER” is activated,
while it will go out when “TIMER” is deactivated or the set.
①
②
④
③
Fig.6.1