Dr. Smart Inverter Air-Conditioner Detector User manual

Thanks for using Inverter Air-Conditioner Detector. This
manual will provide you with information on how to connect and
operate this unit to check, test and troubleshoot the inverter air
conditioner. Please read it and save it carefully.
Note: Products shall be subject to any changes without additional
notices.
OPERATION MANUAL
Inverter Air-Conditioner Detector

Features...............................................................................1
Packing List........................................................................1
Part Name...........................................................................2
Operations.........................................................................3
System Menu....................................................................4
Operation Instructions...................................................6
Contents

Packing List
Please check if all items are inside the packing box when you get the
detector.
Item Appearance Quantity Specifications
Detector 1
1
1
High Voltage
Connection
Cable
Low Voltage
Connection
Cable
Operation
Manual
3×20AWG
2 4×24AWG
OPERATION MANUAL
Page 1 
Features
Portable size with multi-function display
The size is only 180*95*30 mm. The multi-function matrix LCD display
can show you complicated information.
Convenient for carrying and operation
The weight is only 400g so that you can carry it easily to the site.
Magnet on the back so that you can put it on any metal surface.
Menu-style operations make all the detecting, checking and
troubleshooting much easier.
Easy connection
You can connect it to inverter air conditioner directly at the terminals
without disassembling the indoor or outdoor unit.
Powerful functions
With it you can check the communication, running parameters, error
codes and set the running parameters of inverter air conditioners.

Part Name
1
2
3
4
5
8
8
6 7
1. UP button
2. DOWN button
3. OK button
4. BACK button
5. Connection selector
6. Port for high voltage connection
7. Port for low voltage connection
8. Magnet
Page 2 

Operations
UP and DOWN button : For item selection, or page up and down in
parameter inquiry mode, or increase and decrease the values in
parameter setting mode. Press and hold them more than 5s if you
want to adjust the values fast.
OK button : Confirm selection. Press and hold it for 3s, the device
will directly go to “Information Inquiry – Parameter Inquiry” function.
Back button : Back to upper menu. Press and hold it for 3s, the
device will go to the Primary Menu.
Connection Selector and Connection Ports : For selecting the
right connection and power supply to the detector.
(1) LNS : For high voltage connection with the 3-core cable with
white connector, the other side is to be connected to the terminal
of inverter outdoor unit.
(2) 5V : For low voltage connection with the 4-core cable with white
connector, the other side is to be connected to the TestPort on
main PCB of inverter outdoor unit.
Page 3 

Page 4 
System Menu
Abbreviations
IDU Indoor unit
ODU Outdoor unit
Temp. Temperature
Freq. Frequency
Ctrl. Control
PMV Electrical expansion valve
Err. Error
4WV 4 way valve
Para. Parameter
Volt. Voltage
Curr. Current
Comp. Compressor
Commu. Communication
T1 Room temperature
T2 Indoor coil temperature
T3 Outdoor coil temperature
T4 Ambient temperature
T5/Td Compressor discharge temperature

Condenser Temp. T3
Page 5 
Menu Structure
Information
Inquiry
Parameter Inquiry
AD Value Inquiry
Error Code Inquiry
For 5V
TestPort
connection
only
For LNS
connection
only
Parameter
Setting
Target Frequency
Outdoor Fan Speed
Open Steps of PMV
4-way Valve
Self-check
Commu.
Error
Analysis
Online Check
Check Indoor PCB
Check Outdoor PCB
Commu.
Simulation
Information inquiry
IDU Simulator
ODU Simulator
IDU Query
ODU Query
Mode
Target Frequency
Fan speed
Indoor Temp. T1
Evaporator Temp. T2
Mode
Running Frequency
Ambient Temp. T4
Discharge Temp. T5
Primary Menu Secondary Menu 3rd level Menu Remark

Page 6 
Operation Instructions
For LNS connection (Suitable for AC units with S
communication)
ATTENTION!
Before commencing any tests, SWITCH-OFF ALL
POWER SOURCES and WAIT for a MINIMUM OF 3
MINUTES to allow all capacitor voltages to decay.
Before disconnecting of connecting any terminals,
check that all voltages are zero.
Note:
1. For convenience, you can move some wires
from front pins to back pins so that you can
connect the device on the front pins.
Connect this device to the void pins of outdoor wiring terminal with
LNS connection cable. Make the Connection selector to “LNS”.
Test Board
L
N
S
Brown
Blue
Black
Indoor
Unit
Outdoor
Unit

Commu. Error Analysis
1. When the device is connected and powered on, it will carry out the
communication check automatically.
2. You may get any of below 3 feedbacks in about 40 seconds:
a). IDU commu. fault, please check the IDU and communication
wire;
b). ODU commu. fault, please check ODU and communication
wire;
c). Communication normal, Please press OK for information.
(When OK pressed, it will go to “Commu. Similation—Information
inquiry” directly)
Note: If you get c) result but E1 still shows, the indoor PCB is faulty
and need to be replaced.
3. If you want to check the communication again, go to “Commu.
Error Analysis—Online check”.
4. Self-check
This function is to ensure the communication check function of the
device is normal.
Disconnect S (only L, N connected) and turn on the A/C unit, select
“Commu. Error Analysis ----self-check”, you will get the feedback in
about 10 seconds.
Note: Self-check is unnecessary for each analysis.
2. There is a clip inside the terminal of connection
wire. Always make the front side face you when
you insert the terminal into the pins. Or you
cannot press the clip when you want to put the
terminals out of the pins.
3. Watch the sequence of L, N and S when you
connect the device to the terminal.
Clip
Page 7 

Mode OFF
COOL
HEAT
ONLY FAN
DRY
FORCE COOL
DEFROST
IDU
information Data Range
Mode OFF
COOL
HEAT
ONLY FAN
DRY
FORCE COOL
DEFROST
COOLDRY (Self-clean)
ECO
Room Temp. -66.0～255 AC Input 0～65535
Coil Temp. -66.0～255
Indoor Fan
Speed
OFF
High
Middle
Low
Sneeze
Turbo
Supper Sneeze
Auto
Ambient
Temp.
-66.0～255
Target Frequency
0～255 Frequency 0～255
Discharge Temp.
-66.0～255
ODU Fan speed
0～65535
PMW steps 0～65535
Set Temp. 17-30 Coil Temp. -66.0～255
ODU
information Data Range
Page 8 
Information Inquiry
Select “Commu. Similation—Information inquiry—IDU inquiry” to
check indoor unit running parameter.
Select “Commu. Similation—Information inquiry—ODU inquiry” to
check outdoor unit running parameter.

Page 9 
Indoor Unit Simulator
In this mode, the device can work as an indoor unit. You can set
necessary parameters like values of room temperature senor T1, coil
temperature sensor T2, target running frequency of compressor,
mode, fan speed, even fault information and send them to outdoor
unit to change the working state of it.
Note: The communication cable S should be disconnected to the
indoor unit.
Outdoor Unit Simulator (Reserved)
For 5V Test Port Connection (Suitable for all inverter AC
units)
Remove the top cover of inverter outdoor unit and find the main PCB.
Connect this device to the TestPort on the main PCB of outdoor unit.
Make the Connection selector to “5V”.
Note: Never connect LNS and TestPort at the same time.
Test Board
L
N
S
Brown
Blue
Black
Indoor
Unit
Outdoor
Unit
Test Board
L
N
S
5V
GND
Indoor
Unit
Outdoor
Unit
Control
Box
SCL
SDA
TestPort

Discharge temp. Td -66.0～255
IPM temp. -66.0～100
Outdoor Fan Speed 0～65535
Ambient temp. T4 -66.0～255
Indoor coil temp. T2 -66.0～255
Outdoor coil temp. T3 -66.0～255
Room temp. T1 -66.0～255
-66.0～255
OFF
COOL
HEAT
ONLY FAN
DRY
FORCE COOL
DEFROST
PMV opening steps
Set temp. Ts
Indoor mode
0～65535
DC bus volt. 0～65535
0～65535
AC volt.
Current
0～65535
Information Data Range
Page 10 
Information Inquiry
Select “Information Inquiry—Parameter Inquiry” to check the running
parameters of inverter unit.
Outdoor target frequency 0～255
Outdoor control frequency
Outdoor actual frequency
0～255
0～255
Indoor target frequency 0～255

E0 Indoor EEPROM error
E1 Communication error of indoor and outdoor unit
E2 Error of zero cross detection of indoor unit
E3 Indoor fan out of control
E5 EERROM or temperature sensor error of outdoor unit
E50 Temperature sensor error of outdoor unit
E51 Outdoor EEPROM error
E6 Temperature sensor error of indoor unit
E60 Error of room temperature sensor of indoor unit
E61 Error of evaporator temperature sensor of indoor unit
E7 DC fan of outdoor unit out of control
Eb Error of communication between indoor PCB and display PCB
P0 IPM Module protection of outdoor unit
P1 Voltage protection
P10 Low voltage low protection
P11 Over voltage protection
P12 Error of 341MCE
P2 Top temperature protection of compressor
P4 Feedback protection of compressor in outdoor unit
P40 Communication error between main control trip and drive chip
P41 Error of current sampling circuit of compressor
P42 Error of compressor start up
Page 11 
AD Value Inquiry (Reserved)
Error Code Inquiry
You can check the error code if there is any.
When error occurs, the display will show error code and the
information you’re checking alternatively every two seconds.
Error Code Explanation

Page 12 
P43 Phase lose protection
P44 Zero speed protection
P45
Synchronization error between 341 chip and PWM
P46 Compressor speed out of control
P49 Error of over current of compressor
P6 High discharge temperature protection of compressor
P80 Current protection of indoor unit
P81 Current protection of outdoor unit
P82 Error of sampling of input AC
P9 High and low temperature protection of evaporator
P90 High temperature protection of evaporator
P91 Low temperature protection of evaporator
PA High temperature protection of condenser
L0 Frequency limit caused by High or low evaporator
temperature
L1 Frequency limit caused by high condenser temperature
L2 Frequency limit caused by high discharge temperature
of compressor
L3 Frequency limit caused by current
L5 Frequency limit caused by voltage
PF PFC circuit error
Error Code Explanation
P8 Current protection
Parameter Setting
Select “Parameter Setting”, you can set the frequency of compressor,
outdoor fan speed, opening steps of electrical expansion valve and 4
way valve.

Target
Frequency 0.1～200 Please refer to recommended range
Outdoor Fan
Speed
0～1599
Open Steps
of EEV 0～1599
4-way Valve 0～2
DC Motor
Contents Valid Range Remark
12K and lower
14
18-24K
18
36-60K 20
85
75
70
25-65
25-65
30-60
26
26
26
90
85
80
35-75
35-75
35-70
Unit size Cooling Mode Heating Mode
Page 13 
Recommended set frequency range
0～1599 AC
Motor
0～Min. Speed rpm Auto
(by unit)
Min. Speed ～800
rpm
Low
800～1200 rpm Med
1200～1500 rpm Hi
0 Auto (by unit)
1 On
2 Off
Warning: DO NOT let compressor run at very high
frequency or some certain frequency leading to
resonance for a long time to avoid damage to
compressor or the inverter control system.
Attention: Any damage of inverter A/C units
caused by the set frequency out of above range is
the responsibility of the operators themselves.
Min MaxSuitable Min MaxSuitable

SM(TESTBOARDV3)-01
16111500000730
20181227
The design and specifications are subject to change
without prior notice for product improvement. Consult
with the sales agency or manufacturer for details.

此面无需印刷
技术 要求：
1. 双胶纸(说明书)80g非E项目大度
2.尺寸：210*120mm
3.颜色：黑白
4.注意：排版时注意页码数字都是靠外面的，以便翻阅
5.装订。