Service Manual
Table Of Contents
- 目录
- 第一部分 产品篇
- 第二部分 控制篇
- CONTROL
- 1 OPERATION FLOWCHART
- 2 WIRELESS REMOTE CONTROLLER
- 3 WIRED CONTROLLER
- 4 OPERATION INSTRUCTION OF SPECIAL FUNCTIONS
- 4.1 Setting of Filter Clean Reminder Function
- 4.2 Low Temperature Drying Function
- 4.3 Lock Function
- 4.4 Memory Function
- 4.5 Door Control Function/Human Sensitive Function
- 4.6 Switch between Fahrenheit and Centigrade
- 4.7 Enquiry of Ambient Temperature
- 4.8 Enquiry of Historical Malfunction
- 4.9 Debugging Function
- 4.9.1 Setting ambient temperature sensor (dual ambient temperature sensors function)
- 4.9.2 Selecting three speeds in high speed and three speeds in low speed of indoor fan motor
- 4.9.3 Displaying setting of freeze protection error code
- 4.9.4 Setting refrigerant lacking protection function
- 4.9.5 Selecting blowing residual heating of indoor unit
- 4.9.6 Mode selecting of compressor electric heating belt
- 4.9.7 Selecting low-power consumption mode
- 4.9.8 Selecting door control function
- 4.9.9 Selecting human sensitive function
- 4.9.10 Selecting long-distance monitoring or centralized controller
- 4.9.11 Selecting fan mode of indoor fan motor
- 4.9.12 Selecting compensation of temperature sensor at air return
- 5 INSTALLATION OF WIRED CONTROLLER
- 6 TROUBLESHOOTING
- 7 CENTRALIZED CONTROLLER
- 7.1 Smart Zone Controller
- 7.2 Additional Special Functions
- 7.2.1 Door control function
- 7.2.2 Human sensitive function
- 7.2.3 MODBUS interface
- 7.2.4 Connect to interface of centralized controller:
- 7.2.5 Light board control:
- 7.2.6 Malfunction output of relay:
- 7.2.7 Reserved fresh air valve interface for duct type unit
- 7.2.8 Interface of anion generator
- 7.2.9 Chassis electric heating belt of outdoor unit is optional
- CONTROL
- 第三部分 安装篇
- INSTALLATION
- 1 INDOOR UNIT INSTALLATION
- 1.1 Installation of Duct Type
- 1.2 Installation of Floor Ceiling Type
- 1.3 Installation of Cassette Type
- 1.3.1 Before Installation
- 1.3.2 Installation Site
- 1.3.3 Installing the Main Body Unit
- 1.3.4 Installing the Suspension Bolts
- 1.3.5 Leveling
- 1.3.6 The Panel Installation
- 1.3.7 Dimension Data
- 1.3.8 Installation of Drain Piping
- 1.3.9 Installing the Drain Pipes
- 1.3.10 Precautions When Doing Riser Piping Work
- 1.3.11 Testing of Drain Piping
- 2 OUTDOOR UNIT INSTALLATION
- 3 REFRIGERATION PIPING WORK
- 3.1 Refrigeration Piping Work Procedures and Caution in Connecting
- 3.2 Specification of Connection Pipe
- 4 ELECTRIC WIRING WORK
- 1 INDOOR UNIT INSTALLATION
- INSTALLATION
- 第四部分 维护篇（上）4.1~4.3
- 第四部分 维护篇（中）4.4拆装
- 第四部分 维护篇（下）4.5爆炸图及清单
U-Match Series DC Inverter Service Manual
106
E8 Malfunction of Indoor Fan Motor
Malfunction of
indoor fan motor
Check if the
control wire of indoor fan motor is
connected on the outdoor
mainboard correctly
Replace
the indoor fan motor and then
restart the unit to see if there still
is malfunction of indoor
fan motor
Correctly connect the
control wire of fan motor
on the mainboard
Operate the unit with
the new motor
Replace the
indoor
mainboard
Yes
No
No
Yes
2.2 Troubleshooting Flow Chart of Drive Malfunction
Note: For Outdoor Unit Drive (Inverter) by Single-phase Motor
P0 Drive module reset
P7 IPM or PFC temperature sensor error
PA AC current protection (input side)
PC Current sense circuit error
HC PFC protection (48k only)
P0、P7、PA、HC or
PC is displayed on
the wired controller
P0、P7、PA、Hc or
PC is displayedin the
mainboard 88
Indicating Lamp
Replace the
mainboard
Work Normally