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
BLU
RED
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
c
able
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
~
Fan
m
ot
r o
WHT
BLU
BLK
ORG
RED
YLW
5K-21K:
24K:
VII.Troubleshooting
Summary of Contents for CSU 12HCAA
Page 48: ...2005 12 20...
Page 49: ......
Page 57: ...9 59...
Page 59: ...11 59...
Page 60: ...12 59...
Page 61: ...13 59...
Page 62: ...14 59...
Page 63: ...15 59...
Page 64: ...16 59...
Page 65: ...17 59...
Page 66: ...18 59...
Page 67: ...19 59 Installation Guide 4 Indoor unit and outdoor unit explosion diagram and spare parts list...
Page 68: ...20 59 CS 23H3 V77AY1A CS 25H3 V AY1A CS 32H3 V AH4 INDOOR UNIT...
Page 69: ...21 59 CS 51H3 H AH1 INDOOR UNIT...
Page 70: ...22 59 CS 66H3 N AS INDOOR UNIT...
Page 71: ...23 59 CS 88H3 Q AT INDOOR UNIT...
Page 72: ...24 59 KFR 23GW AC CS 25H3 V AY1A OUTDOOR UNIT...
Page 73: ...25 59 CS 32H3 V AH4 OUTDOOR UNIT...
Page 74: ...26 59 CS 51H3 H AH1 OUTDOOR UNIT...
Page 75: ...27 59 CS 66H3 N AS OUTDOOR UNIT...