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DLFSHB
Midea DLFSHB User Manual
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Manufacturer reserves the right to change, at any time, specif
i
cations and designs without notice and without obligations.
9
REFRIGERA
TION
CYCLE DIAGRAM
Fig. 8 — Re
frigeration Cy
cle Diagram
Refrigerant Lines
IMPOR
T
ANT
:
Both refrigerant lines must be insulated separately
.
T
able
2 on page
3 lists the pipe sizes
for th
e indoor unit. Refer to the
outdoor unit in
stallation instructions for other allowed
piping lengths and
refrigerant information.
T2 Evaporator
temp. sensor
8
10
Table of Contents
Table of Contents
1
Safety Considerations
1
Introduction
1
Unit Sizes
2
Indoor Unit
2
Model / Serial Number Nomenclatures
2
Compatibility
3
Specifications
3
Dimensions
4
Clearances
4
Recommended Connection Method for Power and Communication Wiring
5
Electrical Data
5
Wiring
5
Connection Diagrams
6
Connection Diagram - 12K (115V)
6
Connection Diagram - 9K - 18K (208/230-1-60)
6
Connection Diagram - 24K (208/230-1-60)
6
Wiring Diagrams
7
Wiring Diagram 9K - 12K (115V and 208/230)
7
Wiring Diagram 18K - 24K (208/230)
7
Fan and Motor Specifications
8
Refrigerant Lines
9
Refrigeration Cycle Diagram
9
Using a Vacuum Pump
10
Deep Vacuum Method
10
Triple Evacuation Method
10
System Evacuation and Charging
10
Operation Modes and Functions
11
Display Function
11
Safety Features
11
Automatic Shutoff Based on Discharge Temperature
11
Outdoor Fan Control
12
Indoor Fan Control
12
COOLING Mode
12
FAN Mode
12
HEATING Mode
13
DEFROSTING Mode
13
AUTO Mode
13
Evaporator Temperature Protection
13
ECO Function
14
Timer Function
14
SLEEP Function
14
Auto−Restart Function
14
Information Inquiry
15
Information Codes
15
Safety
16
Electrolytic Capacitors
16
Discharge Position
16
Troubleshooting
16
Error Codes
17
Error Diagnosis and Troubleshooting Without Error Codes
18
Troubleshooting by Error Code
23
Temperature Sensor Check
23
Compressor Checking
23
IPM Continuity Check
24
EEPROM Parameter Error (EH00/EH0A)
25
Troubleshooting and Repair
25
EEPROM Chip
25
Diagnosis and Solution
25
Indoor and Outdoor Unit Communication Error (EL01)
26
Indoor and Outdoor Unit Communication Error
27
Fan Speed Is Operating Outside of the Normal Range (EH03)
28
Index
29
Indoor or Outdoor DC Fan Motor
29
Voltage
29
Open Circuit or Short Circuit of the Temperature Sensor (EH60)
30
Communication Error between the Indoor PCB and Display Board (Eh0B)
31
Refrigerant Leakage Detection (EL0C)
32
Overload Current Protection (PC08)
33
IPM Malfunction or IGBT Over-Strong Current Protection (PC00)
34
Over Voltage or too Low Voltage Protection (PC01)
35
High Temperature Protection of IPM Module (PC02)
36
Inverter Compressor Drive Error (PC04)
37
Compressor Driven Chip EEPROM Parameter Error (PC40)
38
Compressor Speed Malfunction
39
Outdoor Fan or Lack of Compressor Phase or Outdoor Fan
39
Zero Speed Protection for Compressor
39
Front Panel
40
Disassembly Instructions
40
Electrical Parts
46
Evaporator
48
Fan Motor and Fan
50
Step Motor
52
Temperature Sensor Resistance Value Table for T1, T2, T3, T4
53
Appendix
53
Temperature Sensor Resistance Value Table for T5
54
4
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Midea DLFSHB Specifications
General
Brand
Midea
Model
DLFSHB
Category
Air Conditioner
Language
English
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