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HSU12
Haier HSU12 User Manual
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9.2.4
Removal of Drain pan
P
r
o
ce
d
ur
e
W
arni
ng
Be
sur
e
to
wai
t
10
minut
es
or
more
af
ter
t
urning
of
f
al
l
pow
er
suppl
ies
before
di
sassembling
work.
Step
Procedure
Points
Remov
e
t
he
fr
ont
gr
i
ll
e
.
Remov
e
t
h
e
a
ss
embl
y
of
the
r
educti
on
motor.
1.
Rem
ove
t
he
Drain
pan.
1
Loosen
the
marked
screws
under
the
screw
covers
Loosen the marked
3
L
if
t
up and remove
2
Removal
Procedure
hooks
the
drain
pan.
+68
12/
VHJ(DB)
86
88
90
Table of Contents
Table of Contents
2
Introduction
4
Safety Cautions
4
Caution in Repair
4
Cautions Regarding Products after Repair
5
Inspection after Repair
7
Using Icons
8
Using Icons List
8
List of Functions
9
Specifications
10
Printed Circuit Board Connector Wiring Diagram
12
Indoor Unit Connectors
12
Pcb
13
Connectors
14
Outdoor Unit
16
Funcitions and Control
22
Main Functions and Control Specification of Indoor Unit
22
Temperature Adjusting Function
22
Main Functions
23
Special Functions
24
Powerful Running
24
Silent Running
25
Air Cleaning
25
Timed Running
25
Sleeping Function
26
Trial Running
26
Power Failure Compensation
26
Rated Operation
27
Main Functions and Control Specification of Outdoor Unit
28
Outdoor Unit Operation Frequency and Control
28
Outdoor Fan Control
29
Four-Way Valve Control
29
Outdoor Defrosting Control
29
PTC Output Control
30
System Protection Function
31
Outdoor Temperature Limit
32
Special Features
32
Fault Display and Treatment
32
Function of Main Thermistor
33
Intdoor Unit
34
Room Sensor
34
Value of Thermistor
34
Pipe Sensor
37
Ambient Sensor, Suction Sensor, Defrosting Sensor
41
Discharging Sensor
45
System Configuration
49
Instruction
49
Parts and Functions
50
Indoor Unit
50
Remote Controller
50
Loading of the Battery
50
Clock Set
51
Base Operation
51
Emergency Operation and Test Operation
51
Sleep Operation
52
Power/Soft Operation
52
Health Operation
52
Health Airflow Operation
53
Timer On/Off On-Off Operation
53
Air Filter Cleaning
54
Maintenance
54
Replacement of Air Purifying Filter
54
For Smart Use of the Air Conditioner
54
Cautions
55
Trouble Shooting
56
Service Diagnosis
57
Problem Symptoms and Measures
57
Caution for Diagnosis
57
Error Codes and Description Indoor Display
58
Thermistor or Related Abnormality (Indoor Unit)
59
Indoor Fan Motor Malfunction
60
IPM Protection
62
The IPM and Outdoor PCB Don’t Communicate or Related Abnormality
63
Thermistor or Related Abnormality(Outdoor Unit)
64
Overheat Protection for Exhaust Temperature
65
The EEPROM Abnormality (Indoor or Outdoor Unit)
66
Communication Error between the Indoor and Outdoor Units
67
Power Supply over or under Voltagve Fault
69
Loop of the Station Detect Error
70
Installations
71
Necessary Tools for Installation
71
Selection of Installation Place
71
Drawing for the Installation of Indoor and Outdoor Units
71
Accessory Parts
72
Selection of Pipe
72
Indoor Unit
72
Check for Installation and Test Run
74
Removal of Front Panel
75
Removal Procedure
75
For 12K Indoor Unit
75
Removal of Air Filter
77
Removal of the Blade
78
Removal of Front Case
79
Removal of Vertical Blades and Display Board
81
Removal of Fan Drain Pan and Electrical Box
82
Removal of Fan Motor and Heat Exchanger
83
For 18K Indoor Unit
85
Removal of Horizontal Blade and Front Grille
87
Removal of Drain Pan
89
Removal of Vertical Blades and Swing Motor
90
Removal of Electrical Box
91
Removal of Heat Exchanger
92
Removal of Outdoor Panel
94
For 12/18K Outdoor Unit
94
Removal of Fan and Fan Motor
98
Removal of Fan Motor Bracket and Partition
100
Removal of Computor and Heat Exchanger
102
Appendix
104
Piping Diagrams
104
Cooling Mode
104
Heating Mode
104
Wiring Diagrams
105
For 12K
105
For 18 K
106
Circuit Diagrams
109
Module Board Circuit Diagrams
112
Control Board Circuit Diagrams
112
5
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Haier HSU12 Specifications
General
Brand
Haier
Model
HSU12
Category
Air Conditioner
Language
English
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