Specifications

32
3.528
2.510
2.0
4.61
1.04
2.860
0.885
1.773
315 ~385
~308
~
~
76 ~93
81 ~
33 ~40
58 ~70
CSU-09HHAA CSU-12HHAA CSU-21HHAA CSU-24HHAB
267 ~
295 ~
218 ~
~
~138
87 ~107
installation & Maintenance Manual
4. Fault standards of main components
Name of
component
Test methods and standards
Schematic
diagram
Room
temperature
thermistor
and pipe
temperature
thermistor
use instruments to measure the resistor (at 10-30 )
Normal
Abnormal
short circuit or open circuit
8K ~20K
commpressor
use instruments to measure the resistor (winding temperature at 20
WHI
BLURED
compressor
Normal
Abnormal
short
circuit
or open
circuit
use instruments to measure the resistor between connecting terminals (winding
temperature at 10-30 )
Power cable
white-
black
black-
red
Normal
Abnormal
short
circuit
or open
circuit
indoor fan
motor
signal cable
Connect power, test voltage of cable
brown-yellow
yellow-gray
~
fan turns once 0V 5V 0V
keep 0V
or 5V
Normal
Abnormal
fan
motor
WHI
RED
BLU
YLW
GRAY
BRN
outdoor
fan motor
Use instruments to measure the resistor between connecting terminals
(winding resistance at 10-40 )
short
circuit
or open
circuit
Normal
Abnormal
(red-blue)
(yellow- )blue
(red-blue) (red-blue) (red-blue)
(yellow- )blue (yellow- )blue (yellow- )blue
fan
motor
yellow
blue
red
stepper
motor
use instruments to measure the resistor (when at 10-30
~
Normal
Abnormal
short circuit or open circuit
5K-9K
12K 18K-21K
24K
5K-9K
12K
18K-21K
24K
350 ~400
Normal
Abnormal
short circuit or open circuit
267 ~
295 ~
F
a
n
m
o
t
r o
WHT
BLU
BLK
ORG
RED
YLW
5K-21K:
24K:
VII.Troubleshooting