Innovair Prestige Inverter Service Manual

SERVICE
MANUAL
SERVICE
MANUAL
Table of Contents
Part Ⅰ : Technical Information........................................................................1
1. Summary.......................................................................................................................1
2. Specifications...........................................................................................................3
2.1 Specification Sheet............................................................................................................3
2.2 Operation Characteristic Curve.......................................................................................13
2.3 Capacity Variation Ratio According to Temperature........................................................13
2.4 Cooling and Heating Data Sheet in Rated Frequency....................................................14
2.5 Noise Curve.....................................................................................................................14
3. Outline Dimension Diagram.......................................................................15
3.1 Indoor Unit.......................................................................................................................15
3.2 Outdoor Unit....................................................................................................................16
4. Refrigerant System Diagram.....................................................................17
5. Electrical Part.........................................................................................................19
5.1 Wiring Diagram................................................................................................................19
5.2 PCB Printed Diagram......................................................................................................23
6. Function and Control.......................................................................................26
6.1 Remote Controller Introduction of YV1FB7F...................................................................26
6.2 Remote Controller Introduction of YAN1F1F...................................................................30
6.3 Operation of Smart Control (Smart Phone, Tablet PC) For Gree....................................34
6.4 Operation of Smart Control (Smart Phone, Tablet PC) ..................................................47
6.5 Brief Description of Modes and Functions.......................................................................60
Part Ⅱ : Installation and Maintenance ..................................................69
7. Notes for Installation and Maintenance...........................................69
8. Installation.................................................................................................................72
8.1 Installation Dimension Diagram.......................................................................................72
8.2 Installation Parts-checking .............................................................................................74
8.3 Selection of Installation Location.....................................................................................74
8.4 Requirements for Electric Connection ............................................................................74
8.5 Installation of Indoor Unit.................................................................................................74
8.6 Installation of Outdoor Unit..............................................................................................77
8.7 Vacuum Pumping and Leak Detection............................................................................78
8.8 Check after Installation and Test Operation....................................................................78
w w w . i n n o v a i r . c o m
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
9. Maintenance.............................................................................................................79
9.1 Error Code List................................................................................................................79
9.2 Troubleshooting for Main Malfunction.............................................................................80
9.3 Troubleshooting for Normal Malfunction..........................................................................95
10. Exploded View and Parts List...............................................................97
10.1 Indoor Unit.....................................................................................................................97
10.2 Outdoor Unit................................................................................................................ 112
11. Removal Procedure......................................................................................121
11.1 Removal Procedure of Indoor Unit..............................................................................121
11.2 Removal Procedure of Outdoor Unit...........................................................................126
Appendix:.......................................................................................................................131
Appendix 1: Reference Sheet of Celsius and Fahrenheit...................................................131
Appendix 2: Configuration of Connection Pipe....................................................................131
Appendix 3: Pipe Expanding Method..................................................................................132
Appendix 4: List of Resistance for Temperature Sensor.....................................................133
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Outline Dimension Diagram
Indoor Unit for KIN310C2V31, KIN413C2V31
W
D
H
6 5/8
18 3/16
6 5/16
09K
Φ2 3/16
Φ2 3/16
2 1/8
2 1/8
6
3 1/2
4 11/16
21 5/16
7 1/4
12K
Φ2 3/16
Φ2 3/16
1 3/8
1 3/8
5
3 5/16
Unit:inch
MODEL
09K
12K
W
31 1/8
33 1/4
w w w . i n n o v a i r . c o m
H
10 7/8
11 3/8
D
7 7/8
8 1/4
1
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Outdoor Unit for KIN310C2V31, KIN413C2V31
28
12 5/8
30 9/16
11 1/4
21 1/4
10 1/8
Unit:inch
20
2
SERVICE MANUAL
Indoor Unit for KIN321C2V31, KIN824C2V31
W
H
D
4
27
7 3/16
18K
Φ2 3/16
Φ2 3/16
1 1/2
7 1/2
8 1/8
5 1/2
27
7 5/16
24K
Φ2 3/4
Φ2 3/4
1 11/16
6
3 1/8
Models
18K
24K
w w w . i n n o v a i r . c o m
3
Unit:inch
W
38 3/16
42 7/16
H
11 13/16
12 13/16
D
8 13/16
9 11/16
SERVICE MANUAL
Outdoor Unit for KIN321C2V31, KIN824C2V31
27 9/16
35
38
15 5/8
22
14 5/16
13 3/8
Unit: inch
4
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Refrigerant System Diagram
KIN310C2V31 , KIN413C2V31
Outdoor unit
Indoor unit
Gas pipe
side
Valve
Discharge
Heat
exchanger
(evaporator)
Suction
Accumlator
Compressor
Liquid pipe
side
Valve
Electron
expansion
valve
Heat
exchanger
(condenser)
Strainer
COOLING
Connection pipe specification:
Liquid pipe:1/4"
Gas pipe:3/8"
w w w . i n n o v a i r . c o m
5
SERVICE MANUAL
KIN321C2V31, KIN824C2V31
Outdoor unit
Indoor unit
Gas pipe
side
Valv
e
Discharge
Heat
exchanger
(evaporator)
Suction
r
Accumlator
Compresso
Liquid pipe
side
Valv
e
Electron
expansion
valve
Heat
exchanger
(condenser)
Strainer
COOLING
Connection pipe specification:
Liquid pipe:1/4"
Gas pipe:1/2" for 18K
Gas pipe:5/8" for 24K
6
SERVICE MANUAL
Electrical Part
Wiring Diagram
● Instruction
Symbol
Symbol Color
Symbol
Symbol Color
Symbol
Name
WH
White
GN
Green
CAP
Jumper cap
YE
Yellow
BN
Brown
COMP
Compressor
RD
Red
BU
Blue
Yellow/Green
BK
Black
/
/
Violet
OG
Orange
/
/
YEGN
VT
Grounding wire
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
5220
7(036(1625
78%(
7(036(1625
● Indoor Unit for KIN310C2V31 , KIN413C2V31
­
­
57
57
:,5('
&21752//(5
$3
5(&(,9(5$1'
',63/$<%2$5'
$3
&211(&725
',63 ',63
&$3
1
&200$18$/
&20287
$&/
$30$,1%2$5'
-803
3*)
3*
%8
1
%.
%1
:,),
%.
5'%1
*1<(*1
<(*1
6:,1*8'
:+%8
287'22581,7
76(1625
7(50,1$/
%/2&.
;7
<(*1
;
(9$325$725
*
67(33,1* :,),02'8/(
02725
237,21$/
(/(&75,&%2;
*
0
0
)$1
02725
w w w . i n n o v a i r . c o m
7
600007000575
SERVICE MANUAL
● Outdoor Unit for KIN310C2V31, KIN413C2V31
/
/
%.%1
*1<(*1
32:(5
(/(&75,&$/
%2;
*
0$*1(7,&
5,1*
,1'22581,7
0$*1(7,&
5,1*
(/(&7521,&
5($&725
:$51,1*
28778%( 2875220 (;+$867 (;3$16,21
3OHDVHGRQ
WWRXFKDQ\
7(03 7(03 7(03 9$/9(
/
:+
2*
WHUPLQDOZKHQWKHPDFKLQHLV
6(1625 6(1625 6(1625
(.9
UXQQLQJVWRSSLQJRUKDVEHHQ
/
/
­
­
­
SRZHUHGRIIIRUOHVVWKDQ
57
57
57
PLQXWHVWRSUHYHQWWKHULVN N
N N
RIHOHFWULFVKRFN
/;
/;
;7 0$*1(7,&5,1*
&1
&1
:+%8
%8 /
1
/ 1
%. /
%.
$30DLQ%RDUG
&208
/
5'%1
%1
$&/
/ 29&&203
2)$1
*1<(*1
<(*1 <(*1 3(
8 9 :
7(50,1$/
%8
<( 5'
:+%8
%/2&.
<(*1
;
/ / /
%8 <( 5'
9
8
:
&203
*
<(*1
60000700092101
&203
0,',62/$7,21
6+((7
*
8
5'
5'
6$7
29(5/2$'
3527(&725
0
<(*1
*
)$1 02725
*
127( 0RWRU
JURXQGRQO\
DSSOLHVWRWKH
LURQVKHOOPRWRU
SERVICE MANUAL
5220
7(036(1625
78%(
7(036(1625
● Indoor Unit for KIN321C2V31, KIN824C2V31
­
­
57
57
:,5('
&21752//(5
$3
5(&(,9(5$1'
',63/$<%2$5'
$3
&211(&725
',63 ',63
&$3
%8
1
&200$18$/
&20287
%.
-803
3*)
%.
%1
$&/
$30$,1%2$5'
:+%8
1
5'%1
*1<(*1
<(*1
:,),
6:,1*8'
3*
287'22581,7
76(1625
7(50,1$/
%/2&.
;7
<(*1
;
(9$325$725
*
67(33,1* :,),02'8/(
02725
237,21$/
(/(&75,&%2;
*
0
0
)$1
02725
600007000575
● Outdoor Unit for KIN321C2V31, KIN824C2V31
29(5/2$' 3527(&725
1'&DW$3LVKLJKHUWKDQ9WR
SUHYHQWWKHULVNRIHOHFWULFDOVKRFN
57
­
*1<(*1
7(50,1$/
%/2&.
:+%8
1
%.
5'%1 ,1'22581,7
*
%.%1
:+%8
*1<(*1
%.
57
­
:+
<(*1
/
:+
%8
/
<(
/
5'
&211(&725
*
;
%8
%.
&203
<(
5'
8%8 9<( :5'
&20B,11(5
7B6(1625
29&B&203
%8
%1
/
/
/
/
%1
%8
$3
$&B/
35,17('&,5&8,7%2$5'
1
*
;7
8 &203 *
9
:
0$*1(7,&
5,1*
­
:+
0$*1(7,&
5,1*
/
57
6$7
(;+$867
7(036(1625
WKHYROWDJHRIWHUPLQDO3'&DQG
2875220
7(036(1625
28778%(
7(036(1625
:$51,1* 3OHDVHGRQ
WWRXFKDQ\WHUPLQDOZKHQ
<(*1
)$
*
2)$1
3(
/ /
32:(5
0$*1(7,&
5,1*
/
0
*
60000700023002
w w w . i n n o v a i r . c o m
9
<(*1
(.9
<(*1
(/(&7521,&
(;3$16,21
9$/9(
*
)$102725
1RWH0RWRUJURXQG
RQO\DSSOLHVWRWKH
LURQVKHOOPRWRU
*
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
PCB Printed Diagram
Indoor Unit for KIN310C2V31, KIN413C2V31, KIN321C2V31, KIN824C2V31
● Top view
3
4
5
6
7
8
9
10
No
1
11
2
3
16
2
12
1
13
14
15
● Bottom view
10
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
Interface of communication wire for
indoor unit and outdoor unit
Interface of live wire
Interface of health function neutral
wire
Interface of neutral wire
Interface of fan
Interface of health function live wire
Jumper cap
Auto button
Up&down swing interface
Feedback interface of indoor unit
left&right swing interface
Interface of wifi
Interface of tube temperature sensor
Wired controller
Display interface
Fuse
SERVICE MANUAL
Outdoor Unit for KIN310C2V31, KIN413C2V31
● Top view
3
4
1
2
3
4
5
6
7
8
2
9
5
10
11
6
7
8
1
● Bottom view
11
w w w . i n n o v a i r . c o m
10
9
11
Compressor UVW three phase
input interface
Interface of reactor
Interface of fan
4-way valve
Interface of earthing wire
Interface of live wire
Interface of netural wire
Interface of communication
Interface of electronic expansion
valve
Overload interface of
compressor
Interface of temperature sensor
SERVICE MANUAL
Outdoor Unit for KIN321C2V31, KIN824C2V31
● Top view
1
2
3
4
5 6
7
8
9
10
No.
11
1
2
3
4
5
12
13
14
Name
Compressor three phase input
interface
Terminal of system high pressure
protection
Compressor overload protection
terminal
Interface of temperature sensor
Terminal of electronic expansion
valve
6 Terminal for low pressure protection
7
Interface of fan
8
4-way valve terminal
9
2-way valve terminal
10 Terminal of compressor electric heater
11 Terminal of chassis electric heater
15
● Bottom view
12
12
13
14
15
Live wire
Communication wire
Grounding wire
Neutral wire
SERVICE MANUAL
Function and Control
Remote Controller Introduction of Prestige
1
ON/OFF button
2
MODE button
3
FAN button
4
SWING button
3
5
TURBO button
5
6
▲/
7
SLEEP button
8
TEMP button
9
I FEEL button
10
LIGHT button
11
CLOCK button
12
TIMER ON / TIMER OFF
button
1
2
4
6
7
8
9
11
10
12
button
▲
WIFI
Introduction for icons on display screen
Set fan speed
I feel
Send signal
Turbo mode
Operation mode
Auto mode
Cool mode
8℃ heating function
Dry mode
Fan mode
WIFI
Set temperature
WIFI
Set time
TIMER ON / TIMER OFF
Heat mode
Clock
Sleep mode
Child lock
Light
Up & down swing
Temp. display type
:Set temp.
:Indoor ambient temp.
:Outdoor ambient temp.
Introduction for buttons on remote controller
Note:
● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the
model doesnt have, if press the corresponding button on the remote controller that the unit will keep the original running status.
● After putting through the power, the air conditioner will give out a sound. Operation indictor "
" is ON (red indicator). After that,
you can operate the air conditioner by using remote controller.
● Under on status, pressing the button on the remote controller, the signal icon "
"on the display of remote controller will blink once
and the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner.
● Under off status, set temperature and clock icon will be displayed on the display
of remote controller (If timer on, timer off and light functions are set, the corre- sponding icons will be displayed on the display of
remote controller at the same time); Under on status, the display will show the corresponding set function icons.
w w w . i n n o v a i r . c o m
13
SERVICE MANUAL
1. ON/OFF button
Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator "
display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound.
"on indoor units
2. MODE button
Press this button to select your required operation mode.
AUTO
COOL
DRY
FAN
HEAT
● When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature cant be adjusted and
will not be displayed as well. Press "FAN" button can adjust fan speed. Press "SWING" button can adjust fan blowing angle.
● After selecting cool mode, air conditioner will operate under cool mode. Cool indicator "
"on indoor unit is ON. Press "▲" or "
" button
to adjust set temperature. Press "FAN" button to adjust fan speed. Press "SWING" button to adjust fan blowing angle.
" on indoor unit is ON. Under dry
● When selecting dry mode, the air conditioner operates at low speed under dry mode. Dry indicator "
mode, fan speed cant be adjusted. Press "SWING" button to adjust fan blowing angle.
● When selecting fan mode, the air conditioner will only blow fan, no cooling and no heating. All indicators are OFF. Press "FAN" button to
adjust fan speed. Press "SWING" button to adjust fan blowing angle.
● When selecting heating mode, the air conditioner operates under heat mode. Heat indicator "
" on indoor unit is ON. Press "▲" or "
"
button to adjust set temperature. Press "FAN" button to adjust fan speed. Press "SWING" button to adjust fan blowing angle. (Cooling only
unit wont receive heating mode signal. If setting heat mode with remote controller, press ON/OFF button cant start up the unit).
Note:
● For preventing cold air, after starting up heating mode, indoor unit will delay 1~5 minutes to blow air (actual delay time is depend on indoor
ambient temperature).
● Set temperature range from remote controller: 16~30℃ (60.8~86.0OF); Fan speed: auto, low speed, medium speed, high speed.
▲
▲
3. FAN button
Pressing this button can set fan speed circularly as: auto (AUTO), low(
) ,medium(
), high(
).
Auto
Caution:
● Under AUTO speed, air conditioner will select proper fan speed automatically according to ex-factory setting.
● Fan speed under dry mode is low speed.
4. SWING button
Press this button can select up&down swing angle. Fan blow angle can be selected circularly as below:
no display
(horizontal louvers stops at current position)
", air conditioner is blowing fan automatically. Horizontal louver will automatically swing up & down at maximum angle.
● When selecting "
● When selecting " 、 、 、 、 ", air conditioner is blowing fan at fixed position. Horizontal louver will stop at the fixed position.
● When selecting " 、 、 " , air conditioner is blowing fan at fixed angle. Horizontal louver will send air at the fixed angle.
"button above 2s to set your required swing angle. When reaching your required angle, release the button.
● Hold "
Note:
● " 、 、 " may not be available. When air conditioner receives this signal, the air conditioner will blow fan automatically.
5. TURBO button
Under COOL or HEAT mode, press this button to turn to quick COOL or quick HEAT mode. "
Press this button again to exit turbo function and "
" icon will disappear.
▲
6. ▲/
" icon is displayed on remote controller.
button
● Press "▲" or " " button once increase or decrease set temperature 1℃ (33.8OF). Holding "▲" or " " button, 2s later, set temperature
on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change
accordingly. (Temperature cant be adjusted under auto mode)
● When setting TIMER ON, TIMER OFF or CLOCK, press "▲" or "▲" button to adjust time. (Refer to CLOCK, TIMER ON, TIMER OFF
buttons) When setting TIMER ON, TIMER OFF or CLOCK, press "▲" or "▲" button to adjust time. (Refer to CLOCK, TIMER ON, TIMER
OFF buttons)
▲
▲
14
SERVICE MANUAL
7. SLEEP button
Under COOL, HEAT or DRY mode, press this button to start up sleep function. "
again to cancel sleep function and "
" icon will disappear.
" icon is displayed on remote controller. Press this button
8. TEMP button
By pressing this button, you can see indoor set temperature, indoor ambient temperature or outdoor ambient temperature on indoor units
display. The setting on remote controlleris selected circularly as below:
no display
● When selecting "
" or no display with remote controller, temperature indicator on indoor unit displays set temperature.
● When selecting "
" with remote controller, temperature indicator on indoor unit displays indoor ambient temperature.
● When selecting "
" with remote controller, temperature indicator on indoor unit displays outdoor ambient temperature.
Note:
● Outdoor temperature display is not available for some models. At that time, indoor unit receives "
"signal, while it displays indoor set
temperature.
● Its defaulted to display set temperature when turning on the unit.There is no display in the remote controller.
● Only for the models whose indoor unit has dual-8 display.
● When selecting displaying of indoor or outdoor ambient temperature, indoor temperature indicator displays corresponding temperature and
automatically turn to display set temperature after three or five seconds.
9. I FEEL button
" will be displayed on the remote controller. After this function is set, the remote controller
Press this button to start I FEEL function and "
will send the detected ambient temperature to the controller and the unit will automatically adjust the indoor temperature according to the
detected temperature. Press this button again to close I FEEL function and "
" will disappear.
● Please put the remote controller near user when this function is set. Do not put the remote controller near the object of high temperature
or low temperature in order to avoid detecting inaccurate ambient temperature.
10. LIGHT button
Press this button to turn off display light on indoor unit. "
display light. "
" icon is displayed.
" icon on remote controller disappears. Press this button again to turn on
11. CLOCK button
Press this button to set clock time. "
" icon on remote controller will blink. Press "▲" or " " button within 5s to set clock time. Each
pressing of "▲" or " " button, clock time will increase or decrease 1 minute. If hold "▲" or " " button, 2s later, time will change quickly.
" icon stops blinking.
Release this button when reaching your required time. Press "CLOCK" button to confirm the time. "
Note:
● Clock time adopts 24-hour mode.
● The interval between two operation cant exceeds 5s. Otherwise, remote controller will quit setting status. Operation for TIMER ON/TIMER
OFF is the same.
▲
▲
▲
12. TIMER ON / TIMER OFF button
● TIMER ON button
"TIMER ON" button can set the time for timer on. After pressing this button, "
" icon disappears and the word "ON" on remote controller
blinks. Press "▲" or " "button to adjust TIMER ON setting. After each pressing "▲" or " " button, TIMER ON setting will increase or
decrease 1min. Hold "▲" or " " button, 2s later, the time will change quickly until reaching your required time. Press "TIMER ON" to
" icon resumes displaying. Cancel TIMER ON: Under the condition that TIMER ON is
confirm it. The word "ON" will stop blinking. "
started up, press "TIMER ON" button to cancel it.
● TIMER OFF button
"TIMER OFF" button can set the time for timer off. After pressing this button,"
" icon disappears and the word "OFF" on remote
controller blinks. Press "▲" or " " button to adjust TIMER OFF setting. After each pressing "▲" or " " button,
TIMER OFF setting will increase or decrease 1min. Hold "▲" or " " button, 2s later, the time will change quickly until reaching your
" icon resumes displaying. Cancel TIMER OFF. Under the condition
required time. Press "TIMER OFF" word "OFF" will stop blinking. "
that TIMER OFF is started up, press "TIMER OFF" button to cancel it.
Note:
● Under on and off status, you can set TIMER OFF or TIMER ON simultaneously.
● Before setting TIMER ON or TIMER OFF, please adjust the clock time.
● After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off
according to setting time. ON/OFF button has no effect on setting. If you dont need this function, please use remote controller to cancel it.
▲
▲
▲
▲
▲
▲
w w w . i n n o v a i r . c o m
15
SERVICE MANUAL
Function introduction for combination buttons
1. Energy-saving function
Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving
function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to
ex-factory setting to reach to the best energy-saving effect. Press "TEMP" and "CLOCK"buttons simultaneously again to exit energy-saving
function.
Note:
● Under energy-saving function, fan speed is defaulted at auto speed and it cant be adjusted.
● Under energy-saving function, set temperature cant be adjusted. Press "TURBO" button and the remote controller wont send signal.
● Sleep function and energy-saving function cant operate at the same time. If energy-saving function has been set under cooling mode,
press sleep button will cancel energy-saving function. If sleep function has been set under cooling mode, start up the energy-saving
function will cancel sleep function.
2. 8 ℃ heating function
Under heating mode, press "TEMP" and "CLOCK" buttons simultaneously to start up or turn off 8℃ heating function. When this function is
started up, "
" and "8℃ " will be shown on remote controller, and the air conditioner keep the heating status at 8℃ . Press "TEMP" and
"CLOCK" buttons simultaneously again to exit 8℃ heating function.
Note:
● Under 8℃ heating function, fan speed is defaulted at auto speed and it cant be adjusted.
● Under 8℃ heating function, set temperature cant be adjusted. Press "TURBO" button and the remote controller wont send signal.
● Sleep function and 8℃ heating function cant operate at the same time. If 8℃ heating function has been set under cooling mode, press
sleep button will cancel 8℃ heating function. If sleep function has been set under cooling mode, start up the 8℃ heating function will
cancel sleep function.
● Under ℉ temperature display, the remote controller will display 46 ℉ heating.
3. Child lock function
Press "▲" and " " simultaneously to turn on or turn off child lock function. When child lock function is on, "
" icon is displayed on remote
controller. If you operate the remote controller, the "
" icon will blink three times without sending signal to the unit.
▲
4. Temperature display switchover function
" and "MODE" buttons simultaneously to switch temperature display between ℃ and ℉ .
▲
Under OFF status, press "
5. WIFI fuction
Under ON status, press "Mode" and "Turbo" button simultaneously,the "WiFi" icon will be displayed on remote controller.
press "Mode"and"Turbo" button simultaneously,the "WiFi" icon will disppear.
Operation guide
1. After putting through the power, press "ON/OFF" button on remote controller to turn on the air conditioner.
2. Press "MODE" button to select your required mode: AUTO, COOL, DRY, FAN, HEAT.
3. Press "▲" or " " button to set your required temperature. (Temperature cant be adjusted under auto mode).
4. Press "FAN" button to set your required fan speed: auto, low, medium and high speed.
5. Press "SWING" button to select fan blowing angle.
▲
Replacement of batteries in remote controller
1. Press the back side of remote controller marked with "
", as shown in the fig, and then push
out the cover of battery box along the arrow direction.
2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar
are correct.
3. Reinstall the cover of battery box.
signal sender
battery
reinstall
remove
Note:
Cover of battery box
● During operation, point the remote control signal sender at the receiving window on indoor unit.
● The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them.
● Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone; remote controller should be close to
indoor unit during operation.
● Replace new batteries of the same model when replacement is required.
● When you dont use remote controller for a long time, please take out the batteries.
● If the display on remote controller is fuzzy or theres no display, please replace batteries.
16
SERVICE MANUAL
Operation of Smart Control (Smart Phone, Tablet PC)
Operation Instructions
Download and install APP
Scan the following QR code with your smart phone and download Wifi Smart.
Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon
User of IOS system can search for the Wifi Smart in Apple store to download the Apple version APP. Android user can search "WiFi
Smart" on Google Play to download it.
Configuration
NOTE: Select either the original configuration or AP configuration according to the APP functions.
1.Original configuration
Before operation, please finish the following configuration in order to realize Wifi control and the connection between air conditioner and
intelligent device.
(1).Short-distance control setting for air conditioner using wifi hotspot
Step 1: Air conditioner wifi is set in APP mode in factory.
You can search the air conditioner wifi hotspot through your smart phone.The name of wifi hotspot is the last 8 numbers of the air
conditioner mac address. Password is 12345678.
gree-a
gr-cn
gr-dh
gr-cn
Step 2: Open APP and the screen will show the air conditioner that you just connected. Tap the name of this air conditioner on your
phone to enter and realize short-distance control, as shown below. Please refer to "Functions introduction" for specific control methods.
NOTE:One AC can be controlled by 4 cell phone in maximun at the same time.
w w w . i n n o v a i r . c o m
17
SERVICE MANUAL
2.Configuration method for Android phones 4 steps of configuration
Step 1: Enter homepage "Device", and then tap
at the top right corner.
Select "Add device" and enter the page "Add device".
Tap "Manual configuration" and enter the page "Manual configuration".
Step 2: Tap "Next" in the First Step.
Step 3: Select the wireless network of air conditioner. APP will show the password 12345678 (default password of the network of air
conditioner). Then tap "Next"; select the name of home WiFi router, then enter the correct password and select a server.
Step 4: If configuration is successful, a window will pop up and read “WIFI module starts to connect the configured wireless router”.Then
configuration is completed.
18
SERVICE MANUAL
NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disappear. You should reconnect your
phone to the home WiFi router to realize long-distance control.The above configuration only needs onephone. Other types of phones
shall install this APP, connect with the air conditioner hot spot or wireless router of WiFi air conditioner. When connection is done, open
the APP to use short-distance operation to control the air conditioner and then you can use the long-distance control.
3.Configuration method for Apple phones
Step 1: Turn on Wi-Fi “Settings” on the phone.
Step 2: In general, the hot spot signal of air conditioner is the last 8 bits of MAC address. Eg: Select “a0b41737” and enter
the defaulted password “12345678” to connect it.
Step 3: Turn on APP, press “+” button, press “Add device” to enter into the page of “Add device” and then select “Manual configuration”.
Enter wireless router’s SSID and PSW on the page of “Manual configuration”. The display on the server will be the same as the selection
when registering the account ( server selection in “Setting”).
Eg: WiFi name: Tenda_XXX;
WiFi password:123456789
Server: Europe
Check whether the filled information is correct. If the information is wrong, configuration will fail. Press “Configuration” to start
configuration.
Notice:
Finally, press “Configuration”, and APP will send the filled information to Wifi Smart. At this time, the buzzer will give out a sound, which
indicates it has started to connect the wireless router.
w w w . i n n o v a i r . c o m
19
SERVICE MANUAL
If the name of router or the password is wrong, Wifi Smart can’t connect to the wireless router. 2 mins later, please conduct the
configuration operation again. starts to connect the wireless router.
Wrong server selection will cause long-distance control invalid. Therefore, please make sure thatthe server selection when registering
the account is the same as this one.
If the password is blank, no password is defaulted for the wireless router, which is the OPEN mode.
Configuration should be conducted at one time. As for other phones, they can automatically search for the device after connecting to the
wireless router (such as Tenda_XXX) and turning on the APP.
Functions introduction
1.User registration
Purpose: To realize long-distance control.
Operation instruction: For the first time login, you have to register a new username. If you already have a username, skip the registration
step and enter email address and password on the "Login Page" to log in. If password is forgotton, you can reset the password.
Operation steps:
(1) Select the sever address.
(2) Account login: Slide the page "Device", and enter the menu page on the left.Tap "Login" to enter the page "Register username". New
user must first register a username. Tap "Register”.
(3) If password is forgotten, you can reset the password with your email address.
Tap "Forgot password" and enter the page "Forgot password". Enter your registered email account the first. Tap "Get verification code" to
get an email verification code. Enter a new password and tap "OK" to log in.
20
SERVICE MANUAL
2.Personal settings
Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
(1) Set device name
After quick configuration, a list of controllable smart devices will be generated. Default name for air conditioner is the last 8 numbers of
the air condtioner mac address.
Step 1: Tap and hold the Wifi model name, such as “a0b417ac”, to enter the page "Edit device". Tap "Image" to select the source of
image. Select from "Default images " or " Take photo" or "Choose from photos" and save an image.
Step 2: Tap "Name" to change device name. Save it and the new device name will be shown. Enable button ''Lock device''to lock the
device so that other smart phones can’t search the device. Tap "Temperature unit" to change the temperature unit.
Step 3: Tap "Firmware updated" to upgrade the Firmware of the device, Tap"1.7" the device will upgraded auto.
w w w . i n n o v a i r . c o m
21
SERVICE MANUAL
(2) Set preset name
Step 1: Tap
at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit".
Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the
repeating days. Save the setting of preset name.
(3) Set device image
Please refer to step 1 in 2(1)
3.Control functions
(1) Common control functions: General control on the operation of smart devices (On/Off, temperature, fan speed, mode, etc.) and the
setting of advanced functions (air exchange, dry, health, light, sleep, energy saving upper limit).
Step 1: General control
Enter the homepage "Device" first. Take "babyroom" as an example.
22
SERVICE MANUAL
Tap "babyroom" and enter the page of air conditioner control. Tap
to turn on the control switch.
Tap
or
adjustment.
change working mode. Tap
Tap
to increase or decrease temperature. Tap to
to enter the page of fan speed
and go around the circle to adjust fan speed.
Step 2: Advanced settings
Tap
to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving".
(2) Advanced control functions; Set scene; Preset; Link: Infrared control(only applicable to smart phones with infrared emitter)
Set scene: Preset the operation of several smart devices by one tap. On the page "Device", tap the image of "Device" to enter the page
"Edit scene".
Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices.
Tap
to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or
"OFF".
w w w . i n n o v a i r . c o m
23
SERVICE MANUAL
Continue to select the next execution device as instructed above. Tap
to set the interval.
Tap "Save". Tap the scene picture displayed on homepage "Device" to send the command. Then the scene "Back home"
will be in execution. You may view the execution condition of the scene.
(3) Preset includes single-device preset and multi-device preset
Single-device preset: This can preset a certain device to be On/Off at a specific time.
On the homepage "Device", take air conditioner "babyroom" as an example. Tap
at the bottom of the page "babyroom".
Then you will enter the page "Preset edit".
Slide up and down to set the time. If you need to synchronize the time, tap " synchronize". IIf such "Hint" interface hasn’t appeared,
please skip this operation procedure.
24
SERVICE MANUAL
Tap "Name" to customize the preset name.
Preset device can’t be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the
preset.
Multi-device preset: This can preset multiple devices to execute a command at a specific time.
Please refer to the instructions as how to set preset time, name, timer type and repeating days for a single device.
Tap "Preset device" to select one or more devices. Then return to the page "Device".
(4) Link(This function is applicable to some models)
Select a master device. When the environment satisfies the parameters as set in the master device, slave devices will execute
commands to realize devices linkage.
Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status).
Tap
at the top right corner of the homepage "Device". Select "Link" and enter the page "Add linkage". Tap "Device/Param" to enter
the page "Select device". Take "baby room" as an example. Tap "babyroom".
Enter the page "Select environment parameters".
w w w . i n n o v a i r . c o m
25
SERVICE MANUAL
Tap "Temperature" to enter the page "Select temperature parameter". Slide up or down to adjust temperature. Tap "Upper limit" or "Lower
limit".
Tap "Mode" and "On/Off" to select the status of master device. Then tap "Save".
Step 2: Set time parameter for linkage. Tap "Time parameter" to enter the page "Set time". Slide
time.
rightwards to turn on the setting
Tap "Execution time"; then tap "Start" and "Stop" to set start time and stop time respectively. Tap "OK" at the top right corner to save the
setting.
Tap the days below "Repeat" to select the repeating days. Then tap "Save".
Step 3: Select "Execute command" Tap "Execute command" and enter the page "Select device".
26
SERVICE MANUAL
Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage.
Tap "Save" and then repeat the above steps to set linkage of several scenes.
4.Menu functions
Menu functions (Share, Set, History, Feedback)
(1) Share: To share quick configuration information and unit’s information, including local export and local import.
For local import, you just need to tap "Local import" and wait for the data download.
Local export
Step 1: Export local data to another smart phone.
Enter menu page on the left side and tap "Share" to enter the page "Share". Then tap "Local export".
w w w . i n n o v a i r . c o m
27
SERVICE MANUAL
Step 2: Another smart phone to be imported.
Tap the model name and wait for the download.
Notice:
This function requires that the two phones are of the same operating system. They are either Android phones or Apple phones,and are
connecting to the same wireless router.
(2) Backup: To keep backup of the quick configuration information and unit’s information, including backup to cloud and backup list on
the cloud.
Backup to cloud
Enter the menu page on the left and tap "Backup".
Tap "Backup to cloud" and then tap "Yes". Then wait for the data download.
Select "Backup list on the cloud". Then backup records will appear. Tap "Record" to download data and recover data to local unit.
28
SERVICE MANUAL
(3) Settings
User can set vibration, message alerts, server, updates, etc. The server setting here must be the same as the server setting in
"Configuration" mentioned before.
Otherwise, remote control will be invalid.
(4) Help
Please refer to “Help” of APP for the instruction of the latest functions.
w w w . i n n o v a i r . c o m
29
SERVICE MANUAL
Brief Description of Modes and Functions
● Indoor
Unit
1.Basic function of system
(1)Cooling mode
(1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0OF.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(2)Drying mode
(1) Under this mode, fan operates at low speed and swing operates at setting status. Temperature setting range is 60.8~86.0OF.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(3) Protection status is same as that under cooling mode.
(4) Sleep function is not available for drying mode.
(3)Heating mode
(1) Under this mode, Temperature setting range is 60.8~86.0OF.
(2) Working condition and process for heating mode:
When turn on the unit under heating mode, indoor unit enters into cold air prevention status. When the unit is stopped or at OFF status,
and indoor unit has been started up just now, the unit enters into residual heat-blowing status.
(4)Working method for AUTO mode:
1.Working condition and process for AUTO mode:
a.Under AUTO mode, standard heating Tpreset=68.0OF and standard cooling Tpreset=77.0OF. The unit will switch mode automatically
according to ambient temperature.
2.Protection function
a. During cooling operation, protection function is same as that under cooling mode.
b. During heating operation, protection function is same as that under heating mode.
3. Display: Set temperature is the set value under each condition. Ambient temperature is (Tamb.-Tcompensation) for heat pump unit
and Tamb. for cooling only unit.
4. If theres I feel function, Tcompensation is 0. Others are same as above.
(5)Fan mode
Under this mode, indoor fan operates at set fan speed. Compressor, outdoor fan, 4-way valve and electric heating tube stop operation.
Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 60.8~86.0OF.
2. Other control
(1) Buzzer
Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep.
(2) Auto button
If press this auto button when turning off the unit, the complete unit will operate at auto mode. Indoor fan operates at auto fan speed
and swing function is turned on. Press this auto button at ON status to turn off the unit.
(3) Auto fan
Heating mode: During auto heating mode or normal heating ode, auto fan speed will adjust the fan speed automatically according to
ambient temperature and set temperature.
(4) Sleep
After setting sleep function for a period of time, system will adjust set temperature automatically.
(5) Timer function:
General timer and clock timer functions are compatible by equipping remote controller with different functions.
(6) Memory function
memorize compensation temperature, off-peak energization value.
Memory content: mode, up&down swing, light, set temperature, set fan speed, general timer (clock timer cant be memorized).
After power recovery, the unit will be turned on automatically according to memory content.
(7) Health function
During operation of indoor fan, set health function by remote controller. Turn off the unit will also turn off health function.
Turn on the unit by pressing auto button, and the health is defaulted ON.
30
SERVICE MANUAL
(8)I feel control mode
After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient
temperature sent by remote controller.
(9)Compulsory defrosting function
(1) Start up compulsory defrosting function
Under ON status, set heating mode with remote controller and adjust the temperature to 60.8OF. Press “+, -, +, -, +,-” button successively
within 5s and the complete unit will enter into compulsory defrosting status. Meanwhile, heating indicator on indoor unit will ON 10s and OFF
0.5s successively. (Note: If complete unit has malfunction or stops operation due to protection, compulsory defrosting function can be started
up after malfunction or protection is resumed.
(2) Exit compulsory defrosting mode
After compulsory defrosting is started up, the complete unit will exit defrosting operation according to the actual defrosting result, and the
complete unit will resume normal heating operation.
(10)Refrigerant recovery function:
(1) Enter refrigerant recycling function
Within 5min after energizing (unit ON or OFF status is ok), continuously press LIGHT button for 3 times within 3s to enter refrigerant
recycling mode; Fo is displayed and refrigerant recycling function is started. At this moment, the maintenance people closes liquid valve.
After 5min, stick the thimble of maintenance valve with a tool. If there is no refrigerant spraying out, close the gas valve immediately and
then turn off the unit to remove the connection pipe.
(2) Exit refrigerant recycling function
After entering refrigerant recycling mode, when receive any remote control signal or enter refrigerant recycling mode for 25min, the unit will
exit refrigerant recycling mode automatically If the unit is in standby mode before refrigerant recycling, it will be still in standby mode after
finishing refrigerant recycling; if the unit is in ON status before refrigerant recycling, it will still run in original operation mode.
(11)Ambient temperature display control mode
1. When user set the remote controller to display set temperature (corresponding remote control code: 01), current set temperature will be
displayed.
2. Only when remote control signal is switched to indoor ambient temperature display status (corresponding remote control code: 10) from
other display status (corresponding remote control code: 00, 01,11),controller will display indoor ambient temperature for 3s and then turn
back to display set temperature.
Under this mode, indoor fan operates at set fan speed. Compressor, outdoor fan, 4-way valve and electric heating tube stop operation.
Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 60.8~86.0OF.
(12)Off-peak energization function:
Adjust compressors minimum stop time. The original minimum stop time is 180s and then we change to:
The time interval between two start-ups of compressor cant be less than 180+T s(0≤T≤15). T is the variable of controller. Thats to say
the minimum stop time of compressor is 180s~195s. Read-in T into memory chip when refurbish the memory chip each time. After power
recovery, compressor can only be started up after 180+T s at least.
(13) SE control mode
The unit operates at SE status.
(14) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor fan will still operate at low speed for 2min and then the complete unit will be
turned off. When x-fan function is turned off, after turn off the unit, the complete unit will be turned off directly.
(15) 8º heating function
Under heating mode, you can set 8º heating function by remote controller. The system will operate at 8ºset temperature.
(16) Turbo fan control function
Set turbo function under cooling or heating mode to enter into turbo fan speed. Press fan speed button to cancel turbo wind.
No turbo function under auto, dry or fan mode.
w w w . i n n o v a i r . c o m
31
SERVICE MANUAL
Outdoor Units
1. Input Parameter Compensation and Calibration
(1) Check the ambient temperature compensation function Indoor ambient temperature compensation function.
a. In cooling mode, the indoor ambient temperature participating in computing control = (Tindoor ambient temperature – ⊿ Tcooling indoor ambient temperature
compensation)
b. In heating mode, the indoor ambient temperature participating in computing control= (Tindoor ambient temperature – ⊿ Theating indoor ambient temperature
compensation)
(2) Check effective judgment controls of parameters
Effective judgment function of the outdoor exhaust temperature thermo-bulb When conditions a and b are satisfied, the outdoor exhaust
temperature thermo-bulb is judged not to be connected into place, the mainboard of outer units will display failure of the outdoor exhaust
temperature thermo-bulb (not connected into place), stop the machine for repairing, and resume the machine by remote controls of ON/
OFF.
a. Judgment of exhaust detection temperature change:
After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and the rising value Texhaust (Texhaust (after startup for 10 minutes) - Texhaust (before start-up)) <35.6ºF , the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place (judging
once when the power is on the first time).
b. Comparative judgment of exhaust detection temperature and condenser detection temperature (Tpipe temperature = Toutdoor pipe temperature in cooling
mode, Tpipe temperature = Tindoor pipe temperature in heating mode): After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥
40Hz, and Tpipe temperature ≥(Texhaust+37.4), the outdoor exhaust temperature thermobulb can be judged not to be connected into place (judging
once when power is on the first time).
2. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
(1) If the compressor is shut down, and [Tsetup – (Tindoor ambient temperature – ⊿ Tcooling indoor ambient temperature compensation)] ≤ 32.9ºF , start up the
machine for cooling, the cooling operation will start;
(2) During operations of cooling, if 32ºF ≤ [Tsetup – (Tindoor ambient temperature – ⊿ Tcooling indoor ambient temperature compensation)] < 35.6ºF , the cooling
operation will be still running;
(3) During operations of cooling, if 35.6ºF ≤ [Tsetup – (Tindoor ambient temperature – ⊿ Tcooling indoor ambient temperature compensation)], the cooling operation
will stop after reaching the temperature point.
2. Temperature setting range
(1) If Toutdoor ambient temperature ≥ [Tlow-temperature cooling temperature], the temperature can be set at: 60.8~86ºF (Cooling at room temperature);
(2) If Toutdoor ambient temperature < [Tlow-temperature cooling temperature], the temperature can be set at: 77~86ºF (Cooling at low temperature), that is, the
minimum setting temperature for outer units judgment is 77ºF .
(2) Dehumidifying Mode
1. Conditions and processes of dehumidifying operations: Same as the cooling mode;
2. The temperature setting range is: 60.8~86ºF;
(3) Air-supplying Mode
1. The compressor, outdoor fans and four-way valves are switched off;
2. The temperature setting range is: 60.8~86ºF.
(4) Heating Mode
1. Conditions and processes of heating operations: (Tindoor ambient temperature is the actual detection temperature of indoor environment
thermo-bulb, Theating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating
operations)
(1) If the compressor is shut down, and [(Tindoor ambient temperature – ⊿ Theating indoor ambient temperature compensation) –Tsetup] ≤ 32.9ºF , start the machine
to enter into heating operations for heating;
(2) During operations of heating, if 32ºF ≤ [(Tindoor ambient temperature – ⊿ Theating indoor ambient temperature compensation) –Tsetup] < 35.6ºF , the heating
operation will be still running;
(3) During operations of heating, if 35.6ºF ≤ [(Tindoor ambient temperature – ⊿ Theating indoor ambient temperature compensation) –Tsetup], the heating operation
will stop after reaching the temperature point.
2. The temperature setting range in this mode is: 60.8~86ºF .
32
SERVICE MANUAL
3. Special Functions
Defrosting Control
① Conditions for starting defrosting
After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes,
the defrosting operation will start.
② Conditions of finishing defrosting
The defrosting operation can exit when any of the conditions below is satisfied:
③ Toutdoor pipe temperature ≥ (Toutdoor ambient temperature – [Ttemperature 1 of finishing defrosting];
④ The continuous running time of defrosting reaches [tmax. defrosting time].
4. Control Logic
(1) Compressor Control
Start the compressor after starting cooling, heating, dehumidifying operations, and the outer fans start for 5s; When the machine is
shutdown, in safety stops and when switching to air-supplying mode, the compressor will stop immediately. In all modes: once the
compressor starts up, it will not be allowed to stop until having run for the [tmin. compressor running time] (Note: including cases of
shutdown when the temperature point is reached; except the cases requiring stopping the compressor such as fault protection, remote
shutdown, mode switching etc.); In all modes: once the compressor stops, it will be allowed be restart after 3-minute delay (Note: The
indoor units have a function of power memory, the machine can be restarted after remote shutdown and powering up again without
delay).
1. Cooling mode
Start the machine to enter into cooling operation for cooling, the compressor is switched on.
2. Dehumidifying mode
Same as the cooling mode.
3. Air-supplying mode
The compressor is switched off.
4. Heating mode
(1) Start the machine to enter into heating operation for heating, the compressor is switched on.
(2) Defrosting:
a. Defrosting starts: the compressor is shut down, and restarts it after 55-second delay.
b. Defrosting ends: the compressor stops, then starts it after 55-second delay.
(2) Outer Fans Control
Notes:
Only the outer fans run for at least 80s in each air flow speed can the air flow be switched;
After the outer fans run compulsively in high speed for 80s when the machine starts up, control the air flow according to the logic.
After remote shutdown, safety stops, and when the machine stops after reaching the temperature point, as well as after the compressor
stops, extend 1 minute, the outer fans will stop (During the period in the 1 minute, the air flow of outer fans can be changed according to
the outdoor ambient temperature changes); When running with force, the outdoor fans shall run in the highest air flow.
(3) 4-way valve control
1. The 4-way valve control under the modes of Cooling, dehumidification and supplying air: closing;
2. The status of 4-way valve control under the heating mode: getting power;
(1) 4-way valve power control under heating mode
a. Starts the machine under heating mode, the 4-way valve will get power immediately.
(2) 4-way valve power turn-off control under heating mode
a. When you should turn off the power or switch to other mode under heating mode, the power of 4-way valve will be cut after 2 minutes
of the compressor stopped.
b. When all kinds of protection stops, the power of 4-way valve will be cut after delaying 4 minutes.
(3) Defrosting control under heating mode:
a. Defrosting begins: The power of 4-way valve will be cut after 50s of entering into the defrosting
compressor.
b. Defrosting stops: The 4-way valve will get power after 50s of exiting the defrosting compressor.
(4) Evaporator frozen-preventing protection function
At the mode of Cooling, dehumidifying:
Evaporator frozen-preventing protection function is allowed to begin after 6 min of starting the compressor.
w w w . i n n o v a i r . c o m
33
SERVICE MANUAL
1. Starting estimation:
After the compressor stopped working for 180s, if Tinner pipe> [Tfrozen-preventing frequency-limited temperature (the temperature of hysteresis is 35.6ºF )],
the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozenpreventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
2. Frequency limited
[Tfrozen-preventing normal speed frequency-reducing temperature] ≤[Tinner pipe T frozen-preventing frequency-limited temperature] , you should limit the frequency raising of
compressor.
3. Reducing frequency at normal speed:
If [Tfrozen-preventing high speed frequency-reducing temperature] ≤[Tinner pipe T frozen-preventing normal speed frequency-reducing temperature], you should adjust the compressor
frequency by reducing 8Hz/90s till the lower limit;
4. Reducing frequency at high speed:
If [Tfrozen-preventing power turn-off temperature] ≤T inner pipe [Tfrozen-preventing high speed frequency-reducing temperature] you should adjust the compressor frequency by
reducing 30Hz/90s till the lower limit;
5. Power turn-off:
If the Tinner pipe <[Tfrozen-preventing power turn-off temperature], then frozen-preventing protect to stop the machine; If T[frozen-preventing frequency-limited temperature]
<Tinner pipe , and the compressor has stopped working for 3 minutes, the whole machine should be allowed to operate.
6. If the frozen-preventing protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you should
press the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor exceeds the t
evaporator frozen-preventing protection times zero clearing time , the times of frozen-preventing power turn-off should be cleared to recount.
The mode of stopping the machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be resumed,
mode transferring will not clear it).
(5) Overload protection function
Overload protection function at the mode of Cooling and dehumidifying
1. Starting estimation:
After the compressor stopped working for 180s, if Touter pipe <[TCooling overload frequency-limited temperature] (the temperature of hysteresis is 35.6ºF ), the
machine is allowed to start, otherwise it should not be started, and should be stopped to treat according to the overload protection: Clear the
trouble at the mode of power turn-off / heating, and the protection times are not counted.
2. Frequency limited
If [TCooling overload frequency-limited temperature] ≤[Touter pipe T Cooling overload frequency reducing temperature at normal speed], you should limit the frequency raising of
compressor.
3. Reducing frequency at normal speed and power turn-off:
If [TCooling overload frequency reducing temperature at high speed] ≤T outer pipe< [TCooling overload power turn-off temperature] , you should adjust the compressor frequency
by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [TCooling overload frequency reducing temperature at normal speed]≤Touter pipe,
then Cooling overload protects machine stopping;
4. Reducing frequency at high speed and stop machine:
If [TCooling overload frequency reducing temperature at high speed]≤Touter pipe [TCooling overload power turn-off temperature], you should adjust the compressor frequency by
reducing 30Hz/90s till the lower limit; After it was running 90s at the lower limit, if [TCooling overload frequency reducing temperature at normal speed] ≤[T outer pipe],
then Cooling overload protects machine stopping;
5. Power turn-off:
If the [TCooling overload power turn-off temperature] ≤Touter pipe, then Cooling overload protects machine stopping; If [Touter pipe]<[TCooling overload frequency-limited
temperature]and the compressor has been stopped working for 3 minutes, the machine should be allowed to operate.
6. If the Cooling overload protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you should
press the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor exceeds the t
overload protection times zero clearing time , the times of overload protection power turn-off should be cleared to recount. The mode of
stopping the machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be resumed, transferring
mode will not clear it).
Overload protection function at the mode of heating
Starting estimation :
After the compressor stopped working for 180s, if T inner pipe T heating overload frequency-limited temperature (the temperature of
hysteresis is 35.6ºF ), the machine is allowed to start, otherwise it should not be started, and should be stopped to treat according to the
overload protection:
Clear the trouble at the mode of power turn-off / heating, and the protection times are not counted.
34
SERVICE MANUAL
1. Frequency limited
If [Theating overload frequency-limited temperature]≤Tinner pipe <[Theating overload frequency reducing temperature at normal speed] , you should limit the frequency raising of
compressor.
2. Reducing frequency at normal speed and stopping machine:
If T[heating overload frequency reducing temperature at normal speed]≤Tinner pipe<[Theating overload frequency reducing temperature at high speed], you should adjust the compressor
frequency by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if T heating overload frequency reducing
temperature at normal speed ≤T inner pipe, then overload protects machine stopping;
3. Reducing frequency at high speed and power turn-off:
If [Theating overload frequency reducing temperature at high speed]≤Tinner pipe<[Theating overload power turn-off temperature], you should adjust the compressor frequency by
reducing 30Hz/90s till the lower limit; After it was running 90s at the lower limit, if T heating overload frequency reducing temperature at normal
speed ≤T outer pipe, then Cooling overload protects machine stopping;
4. Power turn-off:
If the [Theating overload power turn-off temperature] ≤Tinner pipe, then overload protects machine stopping; If T inner pipe T heating overload frequency-limited
temperature and the compressor has been stopped working for 3 minutes, the machine should be allowed to operate.
5. If the overload protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you should press
the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor exceeds the t overload
protection times zero clearing time , the times of overload protection power turn-off should be cleared to recount. The mode of stopping the
machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be resumed, transferring mode will not clear
it). Protective function for discharge temperature of compressor
1. Starting estimation:
After the compressor stopped working for 180s, if TDischarge <TDischarge limited temperature (the temperature of hysteresis is 35.6ºF ), the machine is
allowed to start, otherwise it should not be started, and should be stopped to treat according to the discharge temperature:
The machine should be stopped or transferred to supply air, the trouble should be cleared immediately, and the protection times are not
counted.
2. Frequency limited
If [TLimited frequency temperature during discharging] ≤TDischarge<[Tfrequency reducing temperature at normal speed during discharging] , you should limit the frequency raising of
compressor.
3. Reducing frequency at normal speed and stopping machine:
If [Tfrequency reducing temperature at normal speed during discharging] ≤TDischarge<[Tfrequency reducing temperature at high speed during discharging], you should adjust the compressor
frequency by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [Tfrequency reducing temperature at normal speed during discharging]
≤TDischarge, you should discharge to protect machine stopping;
4. Reducing frequency at high speed and power turn-off:
If [Tfrequency reducing temperature at high speed during discharging] ≤TDischarge <[TStop temperature during discharging], you should adjust
the compressor frequency by reducing 30Hz/90s till the lower limit; After it was running 90s at the lower limit, if [Tfrequency reducing temperature at normal
speed during discharging] ≤TDischarge, you should discharge to protect machine stopping;
5. Power turn-off:
If the [TPower turn-off temperature during discharging] ≤TDischarge, you should discharge to protect machine stopping; If [TDischarge]<[TLimited frequency temperature during
discharging] and the compressor has been stopped for 3 minutes, the machine should be allowed to operate.
6. If the discharging temperature protection of compressor continuously occurs for six times, it should not be resumed automatically, and you
should press the ON/OFF button to resume. During the process of running, if the running time of compressor exceeds the t Protection times
clearing of discharge , the discharge protection is cleared to recount. Stopped or transferred to supply air mode will clear the trouble times
immediately (if the trouble can not be resumed, mode transferring also will not clear it).
7. Frequency limited
If [ILimited frequency when overcurrent] ≤IAC Electric current <[I frequency reducing when overcurrent], you should limit the frequency raising of compressor.
8. Reducing frequency:
If [IFrequency reducing when overcurrent] ≤[IAC Electric current I Power turn-off when overcurrent] , you should reduce the compressor frequency till the lower limit or exit
the frequency reducing condition;
9. Power turn-off:
If [IPower turn-off machine when overcurrent] ≤[IAC Electric current] , you should carry out the overcurrent stopping protection; If I AC Electric current<[T Limited frequency when
overcurrent] and the compressor has been stopped for 3 minutes, the machine should be allowed to operate.
10. If the overcurrent protection continuously occurs for six times, it should not be resumed automatically, and you should press the ON/OFF
button to resume. During the process of running, if the running time of compressor exceeds the [t Protection times clearing of over current] , the discharge
protection is cleared to recount.
w w w . i n n o v a i r . c o m
35
SERVICE MANUAL
(6)Voltage sag protection
After start the compressor, if the time of DC link Voltage sag [USagging protection voltage] is measured to be less than t Voltage sag protection time ,
the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes.
(7)Communication fault
When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault. When
you have not received any correct signal from driver IC (aim to the controller for the separating of main control IC and driver IC), and the
machine will stop for communication fault. If the communication is resumed, the machine will be allowed to operate.
(8)Module protection
Testing the module protective signal immediately after started, once the module protective signal is measured, stop the machine with module
protection immediately. If the module protection is resumed, the machine will be allowed to operate. If the module protection continuously
occurs for three times, it should not be resumed automatically, and you should press the ON/OFF button to resume. If the running time of
compressor exceeds the [t Protection times clearing of module] , the module protection is cleared to recount.
(9)Module overheating protection
1. Starting estimation:
After the compressor stopped working for 180s, if TModule<[TModule frequency limited temperature](the temperature of hysteresis is 35.6ºF ), the machine
is allowed to start, otherwise it should not be started, and should be stopped to treat according to the module overheating protection: The
machine should be stopped or transferred to supply air, the trouble should be cleared immediately, and the protection times are not counted.
2. Frequency limited
If [TLimited frequency temperature of module] ≤TModule <[Tfrequency reducing temperature at normal speed of module] , you should limit the frequency raising of compressor.
3. Reducing frequency at normal speed and power turn-off:
If [Tfrequency reducing temperature at normal speed of module] ≤TModule<[Tfrequency reducing temperature at high speed of module], you should adjust the compressor frequency by
reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [T frequency reducing temperature at normal speed of module] ≤T Module, you should
stop the machine for module overheating protection;
4. Reducing frequency at high speed and power turn-off:
If [Tfrequency reducing temperature at high speed of module]≤TModule <[TPower turn-off temperature of module] you should adjust the compressor frequency by reducing 30Hz/90s
till the lower limit; After it was running 90s at the lower limit, if [T frequency reducing temperature at normal speed of module] ≤T Module, you should stop the machine for
module overheating protection;
5. Power turn-off:
If the [TPower turn-off temperature of module] ≤TModule, you should stop the machine for module overheating protection; If TModule <[TLimited frequency temperature of module]
and the compressor has been stopped for 3 minutes, the machine should be allowed to operate.
6. If protection continuously occurs for six times, it should not be resumed automatically, and you should press the ON/OFF button to resume.
During the process of running, if the running time of compressor exceeds the [t Protection times clearing of module] , the discharge protection is cleared
to recount. Stopped or transferred to supply air mode will clear the trouble times immediately (if the trouble can not be resumed, mode
transferring also will not clear it).
(10)Compressor overloads protection
If you measure the compressor overload switch action in 3s, the compressor should be stopped for overloading. The machine should be
allowed to operate after overload protection was measured to resume. If the overloading protection continuously occurs for three times, it
should not be resumed automatically, and you should press the ON/OFF button to resume. The protection times of compressor is allowed to
clear after the compressor run [t Protection times clearing of compressor overloading] 30 minutes.
(11)Phase current overcurrent protection of compressor
During the running process of compressor, you could measure the phase current of the compressor, and control it according to the following
steps:
1. Frequency limited
If [I Limited frequency phase current] ≤[I Phase current T frequency reducing phase current] , you should limit the frequency raising of compressor.
2. Reducing Frequency
If [I Frequency Reducing Phase Current]≤I Phase Current<[I Power Turn-Off Phase Current], the compressor shall continue to reduce frequency till the lowest frequency
limit or out of the condition of reducing frequency;
3. Power turn-off
If [I Phase Current]≥[I Power Turn-Off Phase Current], the compressor phase current shall stop working for overcurrent protection; if [I Phase Current]≤[I Frequency Reducing
Phase Current], and the compressor have stopped working for 3 min, the machine shall be allowed to operate;
4. If the overcurrent protection of compressor phase current continuously occurs for six times, it should not be resumed automatically, and
you should press the ON/OFF button to resume. During the process of running, if the running time of compressor exceeds the [t Clearing Time of
Compressor Phase Current Times] , the overcurrent protection is cleared to recount.
36
SERVICE MANUAL
(12) Starting-up Failure Protection for Compressor
Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3
times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the
above process for 5 times, it is available if press ON/OFF. And the compressor should be cleared the times after it run 2 min.
(13) Out-of-Step Protection for Compressor
The out-of-step protection signal should be detected immediately after starting-up compressor, and once find the out-of-step protection signal,
the out-of-step protection shall be stopped; if it can run for lasting power turn-off 3 min, the machine shall be allowed to operate. If it still cant
run automatically when the out-of-step protection for compressor happens to stop working for 6 times in succession, it needs to press ON/OFF
to operate. And if the running time is more than 10 min, the power turn-off times for out-of-step protection shall be cleared and recounted.
(14) Voltage Abnormity Protection for DC Bus
To detect voltage abnormity protection for dc bus after completing the pre-charge:
1.Over-High Voltage Protection for DC Bus:
If it found the DCbus voltage UDC >[UDC Jiekuangchun Protection], turn off PFC and stop the compressor at once, and it shall show the DC over-high
voltage failure; it should clear out the failure when the voltage dropped to UDC <[UDC Jiekuangchun Recovery] and the compressor stopped for 3 min.
2.Over-Low Voltage Protection for DC Bus:
If it found the DC bus voltage UDC <[UDC Wantuochun Protection], turn off PFC and stop the compressor at once, and it shall show the DC over-low
voltage; and it should clear out the failure when the voltage raised to UDC >[UDC Wantuochun Recovery] and the compressor stopped for 3 min.
3.To detect voltage abnormity protect for DC bus when getting electricity:
If it found the DC bus voltage UDC >[UDC——Over-High Voltage], turn off the relay at once, and shows voltage abnormity failure for DC Bus. And the
failure cant recover except to break off and get the electricity.
(15)Abnormity Protection for Four-way Valve
Under the model of heating operation in good condition: the compressor is detected [TInner Tube <(TInner Ring-T Abnormity Temperature Difference For Four-Way Valve
Reversion)], during the running, it should be regarded as four-way valve reversion abnormity. And then it can run if stop the reversion abnormity
protection for four-way valve 3 min; and if it still cant run when the reversion abnormity protection for four-way valve happens to stop working
for 3 times in succession, it is available if presses ON/OFF.
Attention: the protection shall be shielded during the testing mode and defrosting process, and it shall be cleared out the failure and its times
immediately when turning off or delivering wind / cooling / dehumidifying mode conversed (the inverted mode dont clear out the failure when it
cant recover to operate).
(16) PFC Protection
1. After start up the PFC, it should detect the protection signal of PFC immediately; under the condition of PFC protection, it should turn off the
PFC and compressor at one time;
2. It shows the failure is cleared out if PFC Protection stopped working 3 min and recovers to run automatically;
3. If it still cant run when it occurs PFC protection for 3 times in succession, it is available if presses ON/OFF; and clear the PFC Protection
times when start up PFC for 10min.
(17) Failure Detection for Sensor
1. Outdoor Ambient Sensor: detect the failure of sensor at all times.
2. Outdoor Tube Sensor: You should not detect the failure of outdoor tube sensor within 10 minutes heating
operation compressor except the defrosting, and you could detect it at other time.
3. Outdoor Exhaust Sensor:
(a) The compressor only detect the sensor failure after it start up 3 min in normal mode;
(b) It should detect the exhaust sensor failure immediately in the testing mode.
4. Module Temperature Sensor:
(a) Short-Circuit Detection: the compressor should be detected immediately when the module temperature
sensor occurs short-circuits;
(b) Open-Circuit Detection: the compressor should be detected on open-circuit when it runs 3min (it neednt 30s
avoiding the module over-heated).
(c) Detect the sensor failure at all times in the testing mode.
5. Disposal for Sensor Protection
(1) When the short-circuit of sensor is detected within 30s, It is regarded as the temperature of sensor over-high (or infinitely high), and now
according to the over-high sensor, the machine should carry out the corresponding protection to stop working, and show the corresponding
temperature shutdown protection and sensor failure at the same time (for example: the compressor stops immediately when the outdoor tube
sensor short-circuit, and the machine shall show the overload protection and outdoor tube sensor failure).
(2) When the open-circuit of sensor is detected within 30s, The protection shall be stopped and it shall show the corresponding sensor failure.
w w w . i n n o v a i r . c o m
37
SERVICE MANUAL
6. Electric Heating Function of Chassis
(1) When Toutdoor amb.≤32ºF , the electric heating of chassis will operate;
(2) When Toutdoor amb.>35.6ºF , the electric heating of chassis will stop operation;
(3)When 32ºF <Toutdoor amb.≤35.6ºF, the electric heating of chassis will keep original status.
7. Electric Heating Function of Compressor
(1) When Toutdoor amb.≤≤23ºF , compressor stops operation, while the electric heating of compressor starts operation;
(2) When Toutdoor amb.>28.4ºF , the electric heating of compressor stops operation;
(3) When 23ºF <Toutdoor amb.≤28.4ºF , the electric heating of compressor will keep original status.
38
SERVICE MANUAL
Installation and Maintenance
Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
●The installation or maintenance must accord with the
instructions.
●Comply with all national electrical codes and local
electrical codes.
●Pay attention to the warnings and cautions in this
manual.
●All installation and maintenance shall be performed by
distributor or qualified person.
●All electric work must be performed by a licensed
technician according to local regulations and the
instructions given in this manual.
●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
1/8 inch.
12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specification
if it is burnt down; dont replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.
Installation Safety Precautions:
1. Select the installation location according to the requirement of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 44.09lb.
3. When installing the indoor unit and outdoor unit, a sufficient fixing bolt must be installed; make sure the installation
support is firm.
4. Ware safety belt if the height of working is above 78 3/4
inch.
5. Use equipped components or appointed components during installation.
6. Make sure no foreign objects are left in the unit after finishing installation.
Warnings
Electrical Safety Precautions:
1. Cut off the power supply of air conditioner before
checking and maintenance.
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly
during installation and maintenance.
5. Have the unit adequately grounded. The grounding wire
cant be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of power
supply must be corresponding to the live wire, neutral
wire and grounding wire of the air conditioner.
8. The power cord and power connection wires cant be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
replaced by a qualified person.
w w w . i n n o v a i r . c o m
Refrigerant Safety Precautions:
1. Avoid contact between refrigerant and fire as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.
2. Apply specified refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when installation
is completed.
4. If there is refrigerant leakage, please take sufficient measure
to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Improper installation may lead to fire hazard, explosion,
electric shock or injury.
39
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Safety Precautions for Installing
and Relocating the Unit:
To ensure safety, please be mindful of the following precautions.
Warnings
1. When installing or relocating the unit, be sure to keep the
refrigerant circuit free from air or substances other than the
specified refrigerant.
Any presence of air or other foreign substance in the refrigerant
circuit will cause system pressure rise or compressor rupture,
resulting in injury.
2.When installing or moving this unit, do not charge the
refrigerant which is not comply with that on the nameplate or
unqualified refrigerant.
Otherwise, it may cause abnormal operation, wrong action,
mechanical malfunction or even series safety accident.
3.When refrigerant needs to be recovered during relocating
or repairing the unit, be sure that the unit is running in
cooling mode.Then, fully close the valve at high pressure
side (liquid valve).About 30-40 seconds later, fully close the
valve at low pressure side (gas valve), immediately stop
the unit and disconnect power. Please note that the time for
refrigerant recovery should not exceed 1 minute.
If refrigerant recovery takes too much time, air may be sucked in
and cause pressure rise or compressor rupture, resulting in injury.
4.During refrigerant recovery, make sure that liquid valve and
gas valve are fully closed and power is disconnected before
detaching the connection pipe.
If compressor starts running when stop valve is open and
connection pipe is not yet connected, air will be sucked in and
cause pressure rise or compressor rupture, resulting in injury.
5.When installing the unit, make sure that connection pipe is
securely connected before the compressor starts running.
If compressor starts running when stop valve is open and
connection pipe is not yet connected, air will be sucked in and
cause pressure rise or compressor rupture, resulting in injury.
6.Prohibit installing the unit at the place where there may be
leaked corrosive gas or flammable gas.
If there leaked gas around the unit, it may cause explosion and
other accidents.
7.Do not use extension cords for electrical connections. If
the electric wire is not long enough, please contact a local
service center authorized and ask for a proper electric wire.
Poor connections may lead to electric shock or fire.
8.Use the specified types of wires for electrical connections
between the indoor and outdoor units. Firmly clamp the
wires so that their terminals receive no external stresses.
Electric wires with insufficient capacity, wrong wire connections
and insecure wire terminals may cause electric shock or fire.
40
SERVICE MANUAL
Main Tools for Installation and Maintenance
1. Level meter, measuring tape
2. Screw driver
3. Impact drill, drill head, electric drill
4. Electroprobe
5. Universal meter
6. Torque wrench, open-end wrench, inner
hexagon spanner
7. Electronic leakage detector
8. Vacuum pump
9. Pressure meter
10. Pipe pliers, pipe cutter
11. Pipe expander, pipe bender
12. Soldering appliance, refrigerant container
w w w . i n n o v a i r . c o m
41
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Installation
At least 5 7/8 inch
Space to the ceiling
Installation Dimension Diagram
Space to the wall
Space to the wall
At least 5 7/8 inch
ac
et
At l
eas
ot
he
t 11
13/
At least 98 7/16 inch
At least 19 11/16 inch
Sp
Space to the obstruction
Sp
ac
et
ot
Space to the floor
he
ob
str
At l
uc
eas
tio
t 11
n
8 in
ch
At least 5 7/8 inch
S
wa
16
e
c
pa
ll
At
to
st
lea
o
e
th
/16
1
3
11
io
ct
ru
t
bs
n
h
inc
inch
Drainage pipe
S
c
pa
et
he
ot
o
ti
ruc
st
ob
At
l
nch
/8 i
85
t7
eas
At
42
Sp
ac
lea
et
st 1
91
ot
1/1
he
6 in
ch
ob
str
uc
tio
n
SERVICE MANUAL
Start installation
Preparation before installation
Read the requirements
for electric connection
select installation
location
Prepare tools
Select indoor unit
installation location
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Fix outdoor unit
Connect wires of indoor unit
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
Connect pipes of outdoor unit
Connect wires of outdoor unit
Neaten the pipes
Vacuum pumping and leakage detection
Check after installation and test operation
Finish installation
Note: this flow is only for reference; please find the more detailed installation steps in this section.
w w w . i n n o v a i r . c o m
43
INNOVAIR INVERTER PRESTIGE
Installation Parts-checking
No.
1
2
Name
Indoor unit
Outdoor unit
No.
8
9
3
Connection pipe
10
4
Drainage pipe
Wall-mounting
frame
Connecting
cable(power cord)
Wall pipe
11
5
6
7
12
13
SERVICE MANUAL
Requirements for Electric Connection
1. Safety Precaution
(1) Must follow the electric safety regulations when installing
the unit.
(2) According to the local safety regulations, use qualified
power supply circuit and air switch.
(3) Make sure the power supply matches with the requirement
of air conditioner. Unstable power supply or incorrect wiring
may result in electric shock,fire hazard or malfunction. Please
install proper power supply cables before using the air
conditioner.
(4) Properly connect the live wire, neutral wire and grounding
wire of power socket.
(5) Be sure to cut off the power supply before proceeding any
work related to electricity and safety.
(6) Do not put through the power before finishing installation.
(7) If the supply cord is damaged,it must be replaced by the
manufacturer,its service agent or similarly qualified persons in
order to avoid a hazard.
(8) The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper tube.
(9) The appliance shall be installed in accordance with national
wiring regulations.
(10) Installation must be performed in accordance with the
requirement of NEC and CEC by authorized personnel only
Name
Sealing gum
Wrapping tape
Support of outdoor
unit
Fixing screw
Drainage plug(cooling
and heating unit)
Owners manual,
remote controller
Note:
1.Please contact the local agent for installation.
2.Dont use unqualified power cord.
Selection of Installation Location
1. Basic Requirement:
Installing the unit in the following places may cause
malfunction. If it is unavoidable, please consult the local dealer:
(1) The place with strong heat sources, vapors, flammable or
explosive gas, or volatile objects spread in the air.
(2) The place with high-frequency devices (such as welding
machine, medical equipment).
(3) The place near coast area.
(4) The place with oil or fumes in the air.
(5) The place with sulfureted gas.
(6) Other places with special circumstances.
(7) Do not use the unit in the immediate surroundings of a
laundry a bath ashower or a swimming pool.
2. Grounding Requirement:
(1) The air conditioner is first class electric appliance. It must
be properly grounding with specialized grounding device
by a professional. Please make sure it is always grounded
effectively, otherwise it may cause electric shock.
(2) The yellow-green wire in air conditioner is grounding wire,
which cant be used for other purposes.
(3) The grounding resistance should comply with national
electric safety regulations.
(4) The appliance must be positioned so that the plug is
accessible.
(5) An all-pole disconnection switch having a contact separation
of at least 1/8 inch in all poles should be connected in fixed
wiring.
(6) Including an air switch with suitable capacity, please note
the following table. Air switch should be included magnet
buckle and heating buckle function, it can protect the circuitshort and overload. (Caution: please do not use the fuse only
for protect the circuit)
2. Indoor Unit:
(1) There should be no obstruction near air inlet and air outlet.
(2) Select a location where the condensation water can be
dispersed easily and wont affect other people.
(3) Select a location which is convenient to connect the
outdoor unit and near the power socket.
(4) Select a location which is out of reach for children.
(5) The location should be able to withstand the weight of
indoor unit and wont increase noise and vibration.
(6) The appliance must be installed 72inch above floor.
(7) Dont install the indoor unit right above the electric
appliance.
(8) Please try your best to keep way from fluorescent lamp.
Air-conditioner
09/12K
3. Outdoor Unit:
(1) Select a location where the noise and outflow air emitted by
the outdoor unit will not affect neighborhood.
(2) The location should be well ventilated and away from
strong wind.
(3) The location should be able to withstand the weight of
outdoor unit.
(4) Make sure that the installation follows the requirement of
installation dimension diagram.
(5) Select a location which is out of reach for children and far
away from animals or plants.If it is unavoidable, please add
fence for safety purpose.
Air switch capacity
15A
Installation of Indoor Unit
1. Choosing Installation Iocation
Recommend the installation location to the client and then
confirm it with the client.
2. Install Wall-mounting Frame
(1) Hang the wall-mounting frame on the wall; adjust it in
horizontal position with the level meter and then point out the
screw fixing holes on the wall.
(2) Drill the screw fixing holes on the wall with impact drill (the
specification of drill head should be the same as the plastic
expansion particle) and then fill the plastic expansion particles
44
SERVICE MANUAL
in the holes.
(3) Fix the wall-mounting frame on the wall with tapping screws
(ST4.2X25TA) and then check if the frame is firmly installed by
pulling the frame. If the plastic expansion particle is loose,
please drill another fixing hole nearby.
5. Connect the Pipe of Indoor Unit
(1) Aim the pipe joint at the corresponding bellmouth.(As show
in Fig.5)
(2) Pretightening the union nut with hand.
(3) Adjust the torque force by referring to the following sheet.
Place the open-end wrench on the pipe joint and place the
torque wrench on the union nut. Tighten the union nut with
torque wrench.(As show in Fig.6)
(4) Wrap the indoor pipe and joint of connection pipe with
insulating pipe, and then wrap it with tape.(As show in Fig.7)
3. Install Wall-mounting Frame
(1) Choose the position of piping hole according to the direction
of outlet pipe. The position of piping hole should be a little
lower than the wall-mounted frame.(As show in Fig.1)
Wall
Space
to the
wall
above
5 7/8
inch
Level meter
Mark in the middle of it
Left
Φ2 3/16inch
Rear piping hole
Wall
Space
to the
wall
above
5 7/8
inch
Righ
Φ2 3/16inch
Rear piping hole
Fig.1
Open-end
wrench
Union nut
Pipe joint
Union nut
Pipe
Fig.5
Insulating pipe
Outdoor
Fig.7
Refer to the following table for wrench moment of force:
Hex nut diameter(inch)
Φ1/4
Φ3/8
Φ1/2
Φ5/8
Φ3/4
2 3/16 inch
5-10°
Fig.6
Indoor pipe
(2) Open a piping hole with the diameter of 2 3/16inch on the
selected outlet pipe position.In order to drain smoothly, slant
the piping hole on the wall slightly downward to the outdoor
side with the gradient of 5-10°.(As show in Fig.2)
Indoor
Pipe
Torque wrench
Fig.2
Note:
(1) Pay attention to dust prevention and take relevant safety
measures when opening the hole.
(2) The plastic expansion particles are not provided and should
be bought locally.
Tightening torque(ft·Ibf)
11.10~14.75
22.12~29.50
33.19~40.56
44.24~47.94
51.32~55.31
6. Install Drain Hose
(1) Connect the drain hose to the outlet pipe of indoor unit.(As
show in Fig.8)
(2) Bind the joint with tape.(As show in Fig.9)
4. Outlet Pipe
(1) The pipe can be led out in the direction of right, rear right,
left or rear left.(As show in Fig.3)
(2) When selecting leading out the pipe from left or right, please
cut off the corresponding hole on the bottom case.(As show in
Fig.4)
Outlet pipe
Fig.8
Outlet
pipe
Drain hose
Drain hose
Tape
Fig.9
Note:
Left
Fig.3
Left
Right
(1) Add insulating pipe in the indoor drain hose in order to
prevent condensation.
(2) The plastic expansion particles are not provided.
(As show in Fig.10)
Rear left
Rear right
Right
Cut off
the hole
Drain hose
Insulating pipe
Fig.4
w w w . i n n o v a i r . c o m
45
Fig.10
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
7. Connect Wire of Indoor Unit
8. Bind up Pipe
(1) Open the panel, remove the screw on the wiring cover and
then take down the cover.(As show in Fig.11)
(1) Bind up the connection pipe, power cord and drain hose
with the band.(As show in Fig.14)
(2) Reserve a certain length of drain hose and power cord
for installation when binding them. When binding to a certain
degree, separate the indoor power and then separate the drain
hose.(As show in Fig.15)
(3) Bind them evenly.
(4) The liquid pipe and gas pipe should be bound separately at
the end.
Screw
Panel
Fig.11
Wiring cover
(2) Fix the wire crossing board on connection wire sleeve at
the bottom case; let the connection wire sleeve go through the
wire crossing hole at the back of indoor unit, and then pull it out
from the front.(As show in Fig.12)
Indoor unit
Gas
pipe
Fig.14
Indoor and
outdoor power cord
Liquid
pipe
Band
Drain hose
Connection pipe
connection wire sleeve
Drain hose
Fig.12
(3) Remove the wire clip; connect the power connection wire
to the wiring terminal; tighten the screw and then fix the power
connection wire with wire clip.(As show in Fig.13)
N(1)
2
Indoor power cord
Band
Fig.15
Note:
(1) The power cord and control wire cant be crossed or
winding.
(2) The drain hose should be bound at the bottom.
3
green
white black red
(brown) (yellow(blue)
green)
9. Hang the Indoor Unit
(1) Put the bound pipes in the wall pipe and then make them
pass through the wall hole.
(2) Hang the indoor unit on the wall-mounting frame.
(3) Stuff the gap between pipes and wall hole with sealing gum.
(4) Fix the wall pipe.(As show in Fig.16)
(5) Check if the indoor unit is installed firmly and closed to the
wall.(As show in Fig.17)
Outdoor unit connection
Note: the wiring board is for reference only,please refer to the
actual one.
Fig.13
(4) Put wiring cover back and then tighten the screw.
(5) Close the panel.
Indoor
Wall pipe
Note:
(1) All wires of indoor unit and outdoor unit should be
connected by a professional.
(2) If the length of power connection wire is insufficient, please
contact the supplier for a new one. Avoid extending the wire by
yourself.
(3) For the air conditioner with plug, the plug should be
reachable after finishing installation.
(4) For the air conditioner without plug, an air switch must be
installed in the line. The air switch should be all-pole parting
and the contact parting distance should be more than 3mm.
Outdoor
Sealing gum
Fig.17
Upper hook
Fig.16
Lower hook of
wall-mounting frame
Note:
Do not bend the drain hose too excessively in order to prevent
blocking.
46
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Installation of Outdoor Unit
Refer to the following table for wrench moment of force:
Hex nut diameter(inch)
Φ1/4
Φ3/8
Φ1/2
Φ5/8
Φ3/4
1. Fix the Support of Outdoor Unit(Select it according to
the actual installation situation)
(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with
expansion screws.
Note:
Tightening torque(ft·Ibf)
11.10~14.75
22.12~29.50
33.19~40.56
44.24~47.94
51.32~55.31
5. Connect Outdoor Electric Wire
(1) Let the connection wire sleeve go through the two holes of
baffle; tighten the connection joint of sleeve and baffle; remove
the wire clip; connect the power connection wire and power
cord to the wiring terminal according to the color; fix them with
screws.(As show in Fig.23)
(1) Take sufficient protective measures when installing the
outdoor unit.
(2) Make sure the support can withstand at least four times the
unit weight.
(3) The outdoor unit should be installed at least 1 3/16 inch
above the floor in order to install drain joint.(As show in Fig.18)
(4) For the unit with cooling capacity of 2300W~5000W, 6
expansion screws are needed; for the unit with cooling capacity
of 6000W~8000W, 8 expansion screws are needed; for the
unit with cooling capacity of 10000W~16000W, 10 expansion
screws are needed.
N(1)
2
L1
white
(blue)
3
L2
black
red
green
(brown) (yellowgreen)
green(yellow-green)
black(brown)
white(blue)
L2
L1
POWER
Fig.23
Indoor unit connection
Note: the wiring board is for reference only,please refer to the actual one.
(2) Fix the power connection wire and power cord with wire clip.
(3) Fix the stopper on handle with screw.
Drain vent
At least 1 1/6 inch above the floor
Drain hose
Chassis
Outdoor drain joint
Note:
(1) After tightening the screw, pull the power cord slightly to
check if it is firm.
(2) Never cut the power connection wire to prolong or shorten
the distance.
(3)The connecting wire and connection pipe cannnot touch
each other,
(4)Top cover of outdoor unit and electric box assembly should
be fixec by the screw.Otherwise,it can cause a fire,or short
circuit caused by water or dust.
Install the over line pipe
Fig.18
Fig.19
2. Install Drain Joint(only for cooling and heating unit)
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)
3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)
Foot holes
Cable cross plate 2
wire-passing
hole
wire pipe
Fixed nut
valve cover
Foot holes
6. Neaten the Pipes
(1) The pipes should be placed along the wall, bent reasonably
and hidden possibly. Min. semidiameter of bending the pipe is 3
15/16inch.
(2) If the outdoor unit is higher than the wall hole, you must set
a U-shaped curve in the pipe before pipe goes into the room,
in order to prevent rain from getting into the room.(As show in
Fig.24)
Fig.21
Fig.20
4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the cable cross plate 2 and valve
cover of outdoor unit and then remove the cable cross plate 2
and valve cover.(As show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the
bellmouth of pipe.(As show in Fig.22)
Liquid pipe
Liquid
valve
Finish
Pipe joint
The drain hos
can't raise
upwards
gas pipe
gas valve
Union nut
Wall
Fig.22
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
w w w . i n n o v a i r . c o m
U-shaped curve
Fig.24
47
Drain hose
Fig.25
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Note:
Check after Installation and Test
Operation
(1) The through-wall height of drain hose shouldnt be higher
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) Slant the drain hose slightly downwards. The drain hose
cant be curved, raised and fluctuant, etc.(As show in Fig.26)
1. Check after Installation
Check according to the following requirement after finishing
installation.
(3) The water outlet cant be placed in water in order to drain
smoothly.(As show in Fig.27)
NO.
1
2
The drain hose can't be fluctuant
3
The drain hose
can't be fluctuant
Fig.26
The water
outlet can't be
fluctuant
The water outlet
can't be placed
in water
4
1. Use Vacuum Pump
(1) Remove the valve caps on the liquid valve and gas valve
and the nut of refrigerant charging vent.
(2) Connect the charging hose of piezometer to the refrigerant
charging vent of gas valve and then connect the other charging
hose to the vacuum pump.
(3) Open the piezometer completely and operate for 10-15min
to check if the pressure of piezometer remains in -14.5ISP.
(4) Close the vacuum pump and maintain this status for 1-2min
to check if the pressure of piezometer remains in -14.5ISP. If
the pressure decreases, there may be leakage.
(5) Remove the piezometer, open the valve core of liquid valve
and gas valve completely with inner hexagon spanner.
(6) Tighten the screw caps of valves and refrigerant charging
vent.(As show in Fig.28)
Piezometer
Lo
Valve cap
Nut of refrigerant
Charging vent
Vacuum pump
Inner hexagon
spanner
Fig.28
Possible malfunction
The unit may drop, shake or
emit noise.
It may cause insufficient cooling
(heating) capacity.
It may cause condensation and
water dripping.
It may cause condensation and
water dripping.
It may cause malfunction or
damage the parts.
It may cause malfunction or
damage the parts.
It may cause electric leakage.
It may cause malfunction or
damage the parts.
It may cause insufficient cooling
(heating) capacity.
It may cause malfunction or
damaging the parts.
It may cause insufficient cooling
(heating) capacity.
It may cause insufficient cooling
(heating) capacity or waster
eletricity.
2. Test Operation
(1) Preparation of test operation
● The client approves the air conditioner installation.
● Specify the important notes for air conditioner to the client.
(2) Method of test operation
● Put through the power, press ON/OFF button on the remote
controller to start operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and
HEAT to check whether the operation is normal or not.
● If the ambient temperature is lower than 16℃ , the air
conditioner cant start cooling.
Hi
Gas valve
Refrigerant charging
vent
Is water drained well?
Is the voltage of power
supply according to the
5
voltage marked on the
nameplate?
Is electric wiring and
6 pipeline installed
correctly?
Is the unit grounded
7
securely?
Does the power cord
8
follow the specification?
Is there any obstruction
9
in air inlet and air outlet?
The dust and
sundries caused
10
during installation are
removed?
The gas valve and liquid
11 valve of connection pipe
are open completely?
Is the inlet and outlet
12 of piping hole been
covered?
Fig.27
Vacuum Pumping and Leak Detection
Liquid valve
Items to be checked
Has the unit been
installed firmly?
Have you done the
refrigerant leakage test?
Is heat insulation of
pipeline sufficient?
Close
Open
2. Leakage Detection
(1) With leakage detector:
Check if there is leakage with leakage detector.
(2) With soap water:
If leakage detector is not available, please use soap water for
leakage detection. Apply soap water at the suspected position
and keep the soap water for more than 3min. If there are air
bubbles coming out of this position, theres a leakage.
48
SERVICE
MANUAL
SERVICE
MANUAL
Troubleshooting for KIN310C2V31 , KIN413C2V31
Error Code List
Display of lamp
(the times of blinking)
Indoor
Outdoor
Display of
Name of malfunction
indoor unit
Anti-freezing protection
Block or Low pressure of refrigerant system
Compressor exhaust high temperature protection
AC over-current protection
E2
E3
E4
E5
E6
E8
H4
H6
C5
LP
L3
L9
Fo
F1
F2
F3
F4
F5
F6
F8
F9
F0
FH
H1
H3
H5
H5
HC
EE
PH
PL
U7
d1/d2/d3
P0
P1
P2
P3
Communication failure between indoor unit and outdoor unit
Anti-high temperature protection
No feedback of indoor fan motor
Jumper cap malfunction protection
Indoor unit and outdoor unit doesn't match
Outdoor DC fan motor malfunction
Power protection
Gathering refrigerant
Indoor ambient sensor open or short circuit
Indoor tube sensor open or short circuit
Outdoor ambient sensor open or short circuit
Outdoor tube sensor open or short circuit
Exhaust sensor open or short circuit
Overload limit / drop frequency
Over current limit / drop frequency
High exhaust temperature limit / drop frequency
Refrigerant leakage protection
Anti-freezing limit / drop frequency
Defrosting
Compressor overload protection
IPM protection
Module temperature is too high
PFC protection
Loading EEPROM malfunction
High PN voltage protection
Low PN voltage protection
4-way valve reversal abnormal
DRED1 / DRED2 / DRED3
Compressor Min frequence in test state
Compressor rated frequence in test state
Compressor maximum frequence in test state
Compressor intermediate frequence in test state
Compressor is running(normal)
The temperature for turning on the unit is reached(normal)
Frequency limiting (module temperature )
Frequency limiting (power)
Malfunction of detecting plate(WIFI )
Insufficient fluorine protection
R
2
3
4
5
6
C
H
O/U
4
6
6
16
14
9
1
1
2
3
4
5
6
8
9
10
2
6
5
7
3
1
2
9
2
1
3
5
5
6
15
11
21
20
2
8
4
10
14
11
13
12
4
1
EU
LU
JF
F0
49
G
7
5
6
24
6
Notes: R(Indoor)--Running C--Cooling H--Heating Y--Yellow R(Outdoor)--Red G--Green
O/U--OFF or Unblink
The display difference between Fo and F0 is 'o' is the bottom part of figure 8
w w w . i n n o v a i r . c o m
R
9
8
11
15
19
23
20
1
Y
3
8
11
13
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Troubleshooting for Main Malfunction
●Indoor unit:
1. Malfunction of Temperature Sensor F1, F2
Main detection points:
● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted?
● Is there short circuit due to trip-over of the parts?
● Is the temperature sensor broken?
Start
● Is mainboard broken?
Malfunction diagnosis process:
Is the wiring terminal between the
temperature sensor and the controller
loosened or poorly contacted?
Yes
Insert the temperature
sensor tightly
No
Is malfunction
eliminated
No
Is there short circuit due to tripover of the parts
Yes
Make the parts upright
No
No
Is the temperature sensor normal
according to the resistance table?
Is malfunction
eliminated
No
Yes
Replace it with a
temperature sensor with
the same model
Yes
No
Is malfunction
eliminated
Replace the mainboard with
the same model.
Yes
End
50
Yes
SERVICE
MANUAL
SERVICE
MANUAL
2. Malfunction of Blocked Protection of IDU Fan Motor H6
Main detection points:
● SmoothlyIs the control terminal of PG motor connected tightly?
● SmoothlyIs the feedback interface of PG motor connected tightly?
● The fan motor cant operate?
● The motor is broken?
● Detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
Start
While power is off stir the blade
No
with a tool to see whether the
blade rotates smoothly
Tighten the screw; reassemble the blade, motor
and shaft bearing rubber base sub-assy to make
sure there is no foreign object between them
Yes
No
Is malfunction
eliminated
Check if the connection of PG
motor feedback terminal is firm
Yes
No
Insert the control terminal
of PG motor tightly
Yes
No
Check if the connection of PG
motor control terminal is firm
Is malfunction
eliminated
Yes
No
Reinstall the blade
and motor correctly
Yes
No
Turn on the unit again; measure
whether the output voltage on
control terminal for PG motor is
more than 50V within 1 min after
the louvers are opened
Yes
Is malfunction
eliminated
Yes
Yes
Yes
Is the motor started up
No
Measure the voltage of this foot to
neutral wire on the mainboard
Replace PG motor
No
No
Replace the mainboard
with the same model
End
w w w . i n n o v a i r . c o m
51
Is malfunction
eliminated
Yes
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
3. Malfunction of Protection of Jumper Cap C5
Main detection points:
● Is there jumper cap on the mainboard?
● Is the jumper cap inserted correctly and tightly?
● The jumper is broken?
● The motor is broken?
● Detection circuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
Start
No
Is there jumper cap on the mainboard?
Appearance of the
jumper cap
Assemble the jumper
cap with the same model
Yes
Is malfunction
eliminated
No
Is the jumper cap inserted correctly
and tightly?
No
Insert the jumper
cap tightly
Yes
Is malfunction
eliminated
No
Yes
Replace the jumper cap with
the same model
Yes
Is malfunction
eliminated
Yes
No
Replace the mainboard
with the same model
End
52
SERVICE
MANUAL
SERVICE
MANUAL
4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8
Main detection points:
● Instant energization afte de-energization while the capacitordischarges slowly?
● The zero-cross detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
Start
Turn power off for
1minute,the turn
back on
U8 is still
displayed
No
The unit returns to normal.
Conclusion:U8 is displayed due to
power off/on while the
capacitor discharges slowly.
Yes
The zero-cross detection circuit
of the mainboard is defined
abnormal.Replace the mainboard
with the same model
End
w w w . i n n o v a i r . c o m
53
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
5. Malfunction of detecting plate(WIFI) JF
Start
check if the connection wire
are correctly connected
Yes
Replace the detecting
plate with the same model
Is malfunction
eliminated
Replace the mainboard
with the same model
No
Yes
The end
54
SERVICE
MANUAL
SERVICE
MANUAL
6. Malfunction
of Insufficient fluorine protection F0
(4)
㕪≏᭵䳌 F0ᧂḕ⍱〻
Troubleshooting
for F0 malfunction
Heat exchangers are
too dirty or the air inlet/outlet
is blocked.
Yes
Clean the heat exchangers and remove
blockage of air inlet/outlet.
No
Compressor doesn't work
normally. Strange noise or leakage occurs.
Casing is too hot.
Yes
Make compressor run normally.
Yes
Remove blockage in the system
Yes
Malfunction is
eliminated.
Yes
Malfunction is
eliminated.
Yes
No
Yes
Check the leaking status of refrigerant
and charge refrigerant
No
No
Replace a main
board with the
same model.
End
w w w . i n n o v a i r . c o m
Malfunction is
eliminated.
No
No
The refrigerant is leaking
Yes
No
No
System is blocked inside
(dirt block, ice block, oil block, Y-valve no
fully open).
Malfunction is
eliminated.
55
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
●Outdoor unit:
(1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel)
Main Check Points:
●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC.
●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged?
Fault diagnosis process:
Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
Y
Fault with the voltage
testing circuit on
control panel AP1
Replace the control
panel AP1
N
Measure the AC voltage between
terminalL and N on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
N
Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC
power on and
restart the unit
If the fault is
eliminated?
Y
Y
Shut down the power and wait 20 minutes;
or use DC voltmeter to measure the voltage
on the two ends of capacitor , until the
voltage is lower than 20V
N
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor Lis normal?
N
Connect the reactor
Laccording to Electrical Wiring Diagram correctly
Re-energize and
turn on the unit
Y
Replace the control
panel AP1
N
End
56
If the fault is
eliminated?
Y
SERVICE
MANUAL
SERVICE
MANUAL
(2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control
panel)
Main check points:
●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order?
●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the
wiring board XT)
●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition?
●Is the working load of the machine too high? Is the radiation good?
●Is the charge volume of refrigerant correct?
Fault diagnosis process:
w w w . i n n o v a i r . c o m
57
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Energize and
switch on
IPM protection
occurs after the
machine has run for
a period of time?
Y
Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)
If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?
N
Check the supply
voltage and
restore it to
210VAC~250VAC
Y
Restart the unit. Before
protection occurs,
use DC voltmeter to
measure the voltage
between the two
ends of electrolytic
capacitor on control
panel AP1
Voltage between
the two ends of celectrolytic
capacitor is
higher than
250V
Y
Please confirm:
1. If the indoor and
outdoor heat
exchangers are
dirty? If they are
obstructed by other
objects which affect
the heat exchange
of indoor and
outdoor unit.
2. If the indoor and
outdoor fans are
working normally?
3. If the environment
temperature is too
high, resulting in
that the system
pressure is too high
and exceeds the
permissible range?
4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?
5. Other conditions
resulting in that the
system pressure
becomes too high.
Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.
The connection
of capacitor C2
is loose.
If capacitor
C2 is failed?
N
Replace the capacitor
C2. Then, energize
and start the unit.
Y
Replace the
control panel AP1
N
If there is any
abnormality
described above?
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
Y
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage
between the two ends of
capacitor C2, until the
voltage is lower than 20V
Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.
Y
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
Connect the control panel
AP1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.
If the
resistance is
normal?
N
If the unit can
work
normally?
Replace the
compressor
COMP
N
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
58
N
If the unit can
work normallv?
If the unit can
work normally?
Y
Y
N
Replace the
control panel AP1
N
Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the
compressor resistance on
Service Manual.
Y
N
Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.
If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?
If the unit can
work
normally?
N
If the unit can
work normally?
N
Y
Y
SERVICE
MANUAL
SERVICE
MANUAL
(3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the
outdoor unit)
Mainly detect:
●Is outdoor ambient temperature in normal range?
●Are the outdoor and indoor fans operating normally?
●Is the heat dissipation environment inside and outside the unit good?
Fault diagnosis process:
Overheat and high
temperature protection
Is outdoor ambient temperature higher than 53?
Y
Normal protection, please operate
it after the outdoor ambient temperature is normalized.
N
20 minutes after the complete
unit is powered off.
Is heat dissipation of the indoor unit
and outdoor unit abnormal?
Y
Improve the heat
dissipation environment of the unit
N
Does the outdoor fan work normally?
N
1. Check if the fan terminal OFAN
is connected correctly
2. Resistance between any two
terminals is measure by an ohm
gauge and should be less than 1K
Ohm.
Y
Replace the fan
capacitor C1
Replace the
control panel AP1
Replace the
outdoor fan
End
w w w . i n n o v a i r . c o m
59
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
(4) Start-up failure (following AP1 for outdoor unit control board)
Mainly detect:
●Whether the compressor wiring is connected correct?
●Is compressor broken?
●Is time for compressor stopping enough?
Fault diagnosis process:
Power on the unit
Is stop time of the compressor
longer than 3 minutes?
Restart it up after
3 minutes
N
Y
Does startup fail?
Y
Are the wires for the compressor connected
correctly? Is connection sequence right?
N
Y
Replace the control panel AP1
N
If the fault is eliminated?
N
Replace the
compressor
Y
End
60
Connect the wires as
per the connection
diagram
SERVICE
MANUAL
SERVICE
MANUAL
(5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit)
Mainly detect:
●Is the system pressure too high?
●Is the input voltage too low?
Fault diagnosis process:
Out of step occurs once the
unit is powered on.
Out of step occurs in
operation
Is stop time of the
compressor longer than
3 minutes?
Is the outdoor fan working
normally?
N
Check if the fan terminal
OFAN is connected correctly
N
Replace the fan
capacitor C1
Y
Y
Is the outdoor unit blocked
by foreign objects?
Are the wires for the compressor connected
correctly? Is connection sequence right?
Is the connection made in clockwise
direction?
N
Connect the
wires correctly
Replace the
outdoor fan
Y
Remove foreign objects
N
Replace the
control panel AP1
Y
Replace the control
panel AP1
If the fault is eliminated?
Y
If the fault is eliminated?
N
N
Replace the
compressor
Replace the
compressor
End
End
w w w . i n n o v a i r . c o m
61
Y
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
(6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board)
Mainly detect:
●Is the PMV connected well or not? Is PMV damaged?
●Is refrigerant leaked?
Fault diagnosis process:
20 minutes after the
complete unit is
powered off
Is the terminal FA for the
electronic expansion valve
connected correctly?
Connect the
wires correctly
N
Resistances between the first four pins
close to the terminal hole and the fifth
pin are almost the same, less than 100
ohm.
Replace the electronic
expansion valve
If the fault is eliminated?
N
Replace the
control panel
AP1
If the fault is eliminated?
N
Coolant leakage, refilling
the coolant
End
62
Y
SERVICE
MANUAL
SERVICE
MANUAL
(7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the
outdoor unit)
Mainly detect:
●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken
Fault diagnosis process:
Start
Check wiring of the
reactor (L) of the
outdoor unit and the
PFC capacitor
Whether there is any
damage or
short-circuit?
Y
Replace it as per the
wiring diagram and
reconnect the wires
If the fault is eliminated?
N
Remove the PFC capacitor
and measure resistance
between the two terminals.
Is the resistance around zero?
N
Y
The capacitor is
short circuited and
the capacitor
should be replaced
Restart the unit
If the fault is eliminated?
Y
N
Disconnect the terminals for the
reactor and measure the resistance
between the two terminals of the
reactor by an ohm gauge
Whether there is any damage
or short-circuit?
N
Y
Replace the reactor
Restart the unit
If the fault is eliminated?
Y
N
Replace the control
panel AP1
N
Y
End
w w w . i n n o v a i r . c o m
63
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
(8) Communication malfunction: (following AP1 for outdoor unit control board)
Mainly detect:
●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged?
●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any
damage?
Fault diagnosis process:
Start
Y
Did the equipment operate
normally before the failure
occurs?
N
Check the wiring of the indoor and
outdoor units with reference to the
wiring diagram
Check wiring inside of
the indoor and outdoor
units
Y
N
Is the connection right?
N
The AP1 voltage
detection circuit
is at fault
Y
Correctly connect the
corresponding wires for
the indoor and outdoor
units with reference to
the wiring diagram
Are wires broken?
N
If the fault is eliminated?
N
Check the communication
circuit of the outdoor unit
If the fault is eliminated?
The communication
circuit is abnormal
Y
N
Replace the main board
of the indoor unit
Replace the main board
AP1 of the outdoor unit
If the fault is eliminated?
N
Y
Y
End
64
Y
SERVICE
MANUAL
SERVICE
MANUAL
9.3 Troubleshooting for Normal Malfunction
1. Air Conditioner Cant be Started Up
Possible Causes
No power supply, or poor
connection for power plug
Discriminating Method (Air conditioner Status)
Troubleshooting
Confirm whether its due to power failure. If yes,
After energization, operation indicator isnt bright wait for power recovery. If not, check power
and the buzzer cant give out sound
supply circuit and make sure the power plug is
connected well.
Wrong wire connection between
indoor unit and outdoor unit,
Under normal power supply circumstances,
or poor connection for wiring
operation indicator isnt bright after energization
terminals
Check the circuit according to circuit diagram
and connect wires correctly. Make sure all
wiring terminals are connected firmly
Make sure the air conditioner is grounded
reliably
Make sure wires of air conditioner is connected
After energization, room circuit breaker trips off at
correctly
Electric leakage for air conditioner
once
Check the wiring inside air conditioner. Check
whether the insulation layer of power cord is
damaged; if yes, place the power cord.
Model selection for air switch is
After energization, air switch trips off
Select proper air switch
improper
After energization, operation indicator is bright,
Replace batteries for remote controller
Malfunction of remote controller while no display on remote controller or buttons
Repair or replace remote controller
have no action.
2. Poor Cooling (Heating) for Air Conditioner
Possible Causes
Set temperature is improper
Rotation speed of the IDU fan
motor is set too low
Filter of indoor unit is blocked
Discriminating Method (Air conditioner Status)
Troubleshooting
Observe the set temperature on remote controller Adjust the set temperature
Small wind blow
Set the fan speed at high or medium
Check the filter to see its blocked
Clean the filter
Check whether the installation postion is proper
Adjust the installation position, and install the
Installation position for indoor unit
according to installation requirement for air
rainproof and sunproof for outdoor unit
and outdoor unit is improper
conditioner
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
Find out the leakage causes and deal with it.
Refrigerant is leaking
lower than normal discharged wind temperature; Add refrigerant.
Units pressure is much lower than regulated
range
Malfunction of 4-way valve
Blow cold wind during heating
Replace the 4-way valve
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
Malfunction of capillary
lower than normal discharged wind temperature; Replace the capillary
Unitt pressure is much lower than regulated
range. If refrigerant isnt leaking, part of capillary
is blocked
Flow volume of valve is
The pressure of valves is much lower than that
Open the valve completely
insufficient
stated in the specification
Refer to point 3 of maintenance method for
Malfunction of horizontal louver Horizontal louver cant swing
details
Refer to troubleshooting for H6 for maintenance
Malfunction of the IDU fan motor The IDU fan motor cant operate
method in details
Refer to point 4 of maintenance method for
Malfunction of the ODU fan motor The ODU fan motor cant operate
details
Refer to point 5 of maintenance method for
Malfunction of compressor
Compressor cant operate
details
3. Horizontal Louver Cant Swing
Possible Causes
Discriminating Method (Air conditioner Status)
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Repair or replace stepping motor
Wrong wire connection, or poor
connection
Check the wiring status according to circuit
diagram
Stepping motor is damaged
Stepping motor cant operate
Others are all normal, while horizontal louver cant
Replace the main board with the same model
operate
Main board is damaged
w w w . i n n o v a i r . c o m
65
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
4. ODU Fan Motor Cant Operate
Possible causes
Wrong wire connection, or poor
connection
Discriminating method (air conditioner status)
Check the wiring status according to circuit
diagram
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Measure the capacity of fan capacitor with an
Capacity of the ODU fan motor is universal meter and find that the capacity is out of
Replace the capacity of fan
damaged
the deviation range indicated on the nameplate of
fan capacitor.
Power voltage is a little low or
Use universal meter to measure the power supply
Suggest to equip with voltage regulator
high
voltage. The voltage is a little high or low
When unit is on, cooling/heating performance
Change compressor oil and refrigerant. If no
Motor of outdoor unit is damaged is bad and ODU compressor generates a lot of
better, replace the compressor with a new one
noise and heat.
5. Compressor Cant Operate
Possible causes
Wrong wire connection, or poor
connection
Discriminating method (air conditioner status)
Check the wiring status according to circuit
diagram
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Measure the capacity of fan capacitor with an
universal meter and find that the capacity is out of
Replace the compressor capacitor
the deviation range indicated on the nameplate of
fan capacitor.
Power voltage is a little low or
Use universal meter to measure the power supply
Suggest to equip with voltage regulator
high
voltage. The voltage is a little high or low
Use universal meter to measure the resistance
Repair or replace compressor
Coil of compressor is burnt out
between compressor terminals and its 0
Cylinder of compressor is blocked Compressor cant operate
Repair or replace compressor
Capacity of compressor is
damaged
6. Air Conditioner is Leaking
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
Eliminate the foreign objects inside the drain
pipe
Replace drain pipe
Drain pipe is blocked
Water leaking from indoor unit
Drain pipe is broken
Water leaking from drain pipe
Water leaking from the pipe connection place of
Wrap it again and bundle it tightly
indoor unit
Wrapping is not tight
7. Abnormal Sound and Vibration
Possible causes
Discriminating method (air conditioner status)
When turn on or turn off the unit,
the panel and other parts will
Theres the sound of "PAPA"
expand and theres abnormal
sound
When turn on or turn off the
unit, theres abnormal sound due
Water-running sound can be heard
to flow of refrigerant inside air
conditioner
Foreign objects inside the indoor
unit or therere parts touching
Theres abnormal sound fro indoor unit
together inside the indoor unit
Foreign objects inside the outdoor
unit or therere parts touching
Theres abnormal sound fro outdoor unit
together inside the outdoor unit
Short circuit inside the magnetic During heating, the way valve has abnormal
coil
electromagnetic sound
Abnormal shake of compressor
Outdoor unit gives out abnormal sound
Abnormal sound inside the
compressor
Abnormal sound inside the compressor
66
Troubleshooting
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Remove foreign objects. Adjust all parts position
of indoor unit, tighten screws and stick damping
plaster between connected parts
Remove foreign objects. Adjust all parts position
of outdoor unit, tighten screws and stick
damping plaster between connected parts
Replace magnetic coil
Adjust the support foot mat of compressor,
tighten the bolts
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
SERVICE
MANUAL
SERVICE
MANUAL
Troubleshooting for KIN321C2V31 , KIN824C2V31
Precautions before Maintenance
There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even the power is cut off, there is high voltage inside the
capacitors and it needs more than 20min to reduce the voltage to safety value. Touching the electrolytic capacitor within 20min after
cutting the power will cause electric shock. If maintenance is needed, follow the steps below to discharge electricity of electrolytic capacitor after power off.
(1) Open the top cover of outdoor unit and then remove the cover of electric box.
cover of electric box
outdoor mainboard
(2) As shown in the fig below, connect the plug of discharge resistance (about 100ohm, 20W) (if there is no discharge resistance, you
can use the plug of soldering iron) to point A and B of electrolytic capacitor. There will be sparks when touching them. Press them forcibly for 30s to discharge electricity of electrolytic capacitor.
(3) After finish discharging electricity, measure the voltage between point A and B with universal meter to make sure if electricity discharging is completed, in order to prevent electric shock. If the voltage between the two points is below 20V, you can perform maintenance safely.
w w w . i n n o v a i r . c o m
67
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Error Code List
(Only for the mode with this function)
13
Malfunction
of detecting
plate(WIFI )
JF
68
SERVICE
MANUAL
SERVICE
MANUAL
Complete unit
current
detection
malfunction
U5
Off 3s
and blink
13 times
Off 3s
and blink
once
(during
blinking,
ON 10s
and Off
05s)
w w w . i n n o v a i r . c o m
Defrosting will occur in
heating mode.Compressor
will operate while indoor
fan will stop.
69
It’s the normal state
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
70
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Troubleshooting for Main Malfunction
●Indoor unit:
1. Malfunction of Temperature Sensor F1, F2
Main detection points:
● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted?
● Is there short circuit due to trip-over of the parts?
● Is the temperature sensor broken?
● Is mainboard broken?
Start
Malfunction diagnosis process:
Is the wiring terminal between the
temperature sensor and the controller
loosened or poorly contacted?
Yes
Insert the temperature
sensor tightly
No
No
Is malfunction
eliminated
Yes
Is there short circuit due to tripover of the parts
Make the parts upright
No
No
Is malfunction
eliminated
No
Is the temperature sensor normal
according to the resistance table?
Yes
Replace it with a
temperature sensor with
the same model
Yes
Is malfunction
eliminated
No
Replace the mainboard with
the same model.
Yes
End
w w w . i n n o v a i r . c o m
71
Yes
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
2. Malfunction of Blocked Protection of IDU Fan Motor H6
Main detection points:
● SmoothlyIs the control terminal of PG motor connected tightly?
● SmoothlyIs the feedback interface of PG motor connected tightly?
● The fan motor cant operate?
● The motor is broken?
● Detectioncircuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
Start
Turn the fan blades
by hand under
power-off condition
Whether the fan blades
can run smoothly?
Yes
Turn unit on
to check whether the
malfunction is
eliminated.
No
Under power-off condition,
check whether the wiring terminal
between indoor fan and main
board is loose.
No
Adjust the motor and blade
assembly so that rotor can run
smoothly.
No
Reinsert the wiring
terminal of indoor fan.
Yes
Turn unit on
to check whether the
malfunction is
eliminated.
No
Connect power and restart the unit.
Test whether the voltage between terminal 1 and terminal 2
of motor interface is within 280~310VDC.
No
Yes
It's the malfunction of main board.
Replace a new main board that is
of the same model.
Yes
Yes
Then check whether the voltage
between terminal 2 and terminal 3
of the motor interface is 15VDC.
No
It's the malfunction of main board.
Replace a new main board that is
of the same model.
No
It's the malfunction of main board.
Replace a new main board that is
of the same model.
Yes
Then check whether there is voltage
between terminal 2 and terminal 4
of the motor interface.
Yes
It's the malfunction of motor.
Replace a new motor that is
of the same model.
End
72
SERVICE
MANUAL
SERVICE
MANUAL
3. Malfunction of Protection of Jumper Cap C5
Main detection points:
● Is there jumper cap on the mainboard?
● Is the jumper cap inserted correctly and tightly?
● The jumper is broken?
● The motor is broken?
● Detection circuit of the mainboard is defined abnormal?
Malfunction diagnosis process:
Start
No
Is there jumper cap on the mainboard?
Appearance of the
jumper cap
Assemble the jumper
cap with the same model
Yes
Is malfunction
eliminated
No
No
Is the jumper cap inserted correctly
and tightly?
Insert the jumper
cap tightly
Yes
Is malfunction
eliminated
No
Yes
Replace the jumper cap with
the same model
Yes
Is malfunction
eliminated
Yes
No
Replace the mainboard
with the same model
End
w w w . i n n o v a i r . c o m
73
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
4. Communication malfunction E6
Start
Cut off power supply. Check if
connection line of IDU and ODU
and the wire inside electric box
are correctly connected.
Correct connection?
Connect the line
according to
wiring diagram.
no
yes
Malfunction eliminated?
no
Main board matches
with display board? Main board of
IDU matches with that of ODU?
no
yes
Match correctly
according to product
specification
Malfunction eliminated?
yes
Malfunction eliminated?
yes
no
yes
Communication cord is damaged?
no
Replace
communication
cord
no
Replace IDU's
main board
yes
Malfunction eliminated?
no
Replace ODU's
main board.
yes
End
74
SERVICE
MANUAL
SERVICE
MANUAL
5. Malfunction of detecting plate(WIFI) JF
Start
check if the connection wire
are correctly connected
Yes
Replace the detecting
plate with the same model
Is malfunction
eliminated
Replace the mainboard
with the same model
No
Yes
The end
w w w . i n n o v a i r . c o m
75
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
●Outdoor unit:
Key detection point
"Test point NO."
Test 1
Test 2
Test 3
Test 4
Test 5
Test 6
Test 7
Test 8
Test 9
Test 10
Test 11
Test 12
Test 13
Test point
Between A and C
Between B and C
Between D and E
Between F and G
Both ends of diode D59
Both ends of electrolytic
capacitor C47
Both ends of electrolytic
capacitor C60
Both ends of electrolytic
capacitor C73
Between S and T
Related elements
Neutral wire ,live wire
Neutral wire ,live wire
Electrolytic capacitor of DC bas bar
Electrolytic capacitor of switch power
D59(IPM module +15V)
Test value under normal condition
160V-265V
160V-265V
DC 180V-380V
DC 180V-380V
DC 14.5V-15.5
C47(+12V power)
DC 12V-13V
C60(+5V power)
DC 5V
C73(+3.3V power)
DC 3.3V
Communication circular current
C50 to N terminal (ground) (signal receiving terminal of
Between point N and GND
outdoor unit)
U7
Between 1 and 2 at leading foot of U7
R77 to N terminal (ground) (signal receiving terminal of
Between point M and GND
outdoor unit)
U8
Between 3 and 4 at leading foot of U8
76
DC 56V
Jumping between 0V and 3.3V
Jumping between 0V and 3.3V
Jumping between 0V and 3.3V
Jumping between 0V and 3.3V
SERVICE
MANUAL
SERVICE
MANUAL
1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit)
Main detection point:
● Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter;
● Is reactor (L) well connected? Is connection wire loosened or pull-out? Is reactor (L) damaged?
Malfunction diagnosis process:
Turn on the unit
and wait 1 minute
Use DC voltmeter
to measure the
voltage on the two
ends of electrolytic
capacitor
Voltage higher than 200V?
Y
Fault with the voltage
testing circuit on
control panel AP1
Replace the control
panel AP1
N
Measure the AC voltage between
terminalL and N on wiring board
XT(power supply)
Voltage within
210VAC~250VAC?
N
Shut down the power
and repair the power
supply to restore the
range
210VAC~250VAC
power on and
restart the unit
If the fault is
eliminated?
Y
Y
or
Shut down the power and wait 20nutes;
mi
use DC voltmeter to measure the voltage
on the two ends of capacitor (test3), until
the voltage is lower than 20V
N
Check the
connection of reactor
(L in the Electrical
Wiring Diagram)
If the wiring of
reactor Lis normal?
N
Connect the reactor
Laccording to Electrical Wiring Diagram correctly
Re-energize and
turn on the unit
Y
Replace the control
panel AP1
N
End
w w w . i n n o v a i r . c o m
77
If the fault is
eliminated?
Y
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
2.IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board
of outdoor unit)
Main detection point:
● If control board AP1 and compressor COMP is well connected? If they are loosened? If the connection sequence is correct?
● Is voltage input in the normal range (Test the voltage between L, N of wiring board XT by DC voltage meter)?
● If coil resistance of compressor is normal? Is compressor coil insulating to copper pipe well?
● If the work load of unit is heavy? If radiating of unit is well?
● If the refrigerant charging is appropriate?
Malfunction diagnosis process:
78
SERVICE
MANUAL
SERVICE
MANUAL
Energize and
switch on
IPM protection
occurs after the
machine has run for
a period of time?
Use AC voltmeter
to measure the
voltage between
terminal L and N
on the wiring
board XT)
Y
If the voltage
between terminal L
and N on wiring
board XT is within
210VAC~250VAC?
N
Check the supply
voltage and
restore it to
210VAC~250VAC
Y
Restart the unit. Before
protection occurs,
use DC voltmeter to
measure the voltage
between the two
ends of electrolytic
capacitor on control
panel AP1 (test3)
Voltage between
the two ends of celectrolytic
capacitor (test3) is
higher than
250V
Y
Please confirm:
1. If the indoor and
outdoor heat
exchangers are
dirty? If they are
obstructed by other
objects which affect
the heat exchange
of indoor and
outdoor unit.
2. If the indoor and
outdoor fans are
working normally?
3. If the environment
temperature is too
high, resulting in
that the system
pressure is too high
and exceeds the
permissible range?
4. If the charge
volume of
refrigerant is too
much, resulting in
that the system
pressure is too
high?
5. Other conditions
resulting in that the
system pressure
becomes too high.
Y
N
Stop the unit and
disconnect the power
supply. Then, check
the connection of
capacitor C2
according to Electrical
Wiring Diagram.
The connection
of capacitor C2
is loose.
If capacitor
C2 is failed?
N
Replace the capacitor
C2. Then, energize
and start the unit.
Y
Replace the
control panel AP1
N
If there is any
abnormality
described above?
Y
Use ohmmeter to
measure the resistance
between the three
terminals on compressor
COMP, and compare the
measurements with the
compressor resistance on
Service Manual.
Use ohmmeter to
measure the resistance
between the two
terminals of compressor
COMP and copper tube.
If the
resistance is
normal?
N
If the unit can
work
normally?
Replace the
compressor
COMP
N
Resistance higher
than 500MΩ?
Y
Replace the
control panel
AP1
END
w w w . i n n o v a i r . c o m
Take corrective actions
according to Technical
Service Manual, and
then energize and start
the unit.
Connect the control panel
AP1 and compressor
COMP correctly according
to the Electrical Wiring
Diagram. Then, energize
and start the unit.
79
N
If the unit can
work normallv?
If the unit can
work normally?
Y
Y
N
Replace the
control panel AP1
N
Y
Reconnect the
capacitor C2 according
to Electrical Wiring
Diagram. Then,
Restart the
unit.
Y
Stop the unit and
disconnect the power
supply. Wait 20 minutes,
or use DC voltmeter to
measure the voltage
between the two ends of
capacitor C2, until the
voltage is lower than 20V
Remove the wires
on the two ends of
capacitor C2. Then,
use capacitance
meter to measure
the capacitor C2.
Verify as per the
Parameters Sheet.
Refer to the
Electrical Wiring
Diagram and check
if the connection
between AP1 and
COMP is loose and if
the connection order
is correct.
If the connection
between AP1 and
COMP is unsecure
or the connection
order is wrong?
If the unit can
work
normally?
N
If the unit can
work normally?
N
Y
Y
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
3.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit)
Main detection point:
● If the outdoor ambient temperature is in normal range;
● If the indoor and outdoor fan is running normal;
● If the radiating environment of indoor and outdoor unit is well.
Malfunction diagnosis process:
Anti-high temperature,
overload protection
If the outdoor ambient temperature is
higher than 127.4 °F?
Y
Normal protection, please use
it after improve the outdoor
ambient temperature
N
After the unit deenergized for 20min
If the radiating of outdoor
and indoor unit is well?
Y
Improve the
radiating
environment of
unit
N
If the indoor and outdoor
fan work well?
1. Check if fan terminal
OFAN is connected well
2. Test if resistance value
of any two terminals is less
than 1k with ohmic meter
N
Y
Replace fan
capacitor C1
Replace
control board
AP1
Replace
outdoor fan
End
80
SERVICE
MANUAL
SERVICE
MANUAL
4.Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit)
Main detection point:
● If the compressor wiring is correct?
● If the stop time of compressor is enough?
● If the compressor is damaged?
● If the refrigerant charging is too much?
Malfunction diagnosis process:
Energize the unit
and start it
If the stop time of compressor
is more than 3min?
If the stop time is not enough and the
high and low pressure of system is not
balance , please start it after 3min
N
Y
If the compressor wire COMP(UVW) is
well connected and connection sequence
is correct
Improve the connection situation
of control board AP1 and
compressor COMP, connect it
with wiring diagram
N
Y
Does the unit start
up normally?
If the refrigerant charging is
too much?
N
Y
Charge the
refrigerant according
to service manual
Does the unit start
up normally?
Y
N
Replace control board AP1
If malfunction is
removed?
N
Replace the
compressor
End
w w w . i n n o v a i r . c o m
81
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
5. Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit)
Main detection point:
● If the system pressure is over-high?
● If the work voltage is over-low?
Malfunction diagnosis process:
Synchronism after
energize the unit
and start it
Synchronism
occurred during
operation
If the stop time of
compressor is more than
3min
If the outdoor fan works
normally?
N
N
Check if the fan
terminal OFAN is
connected well
Replace fan
capacitor C1
Y
Y
If the radiating of unit is
well?
Improve the radiating
of unit (clean heat
exchanger and
increase ventilation)
Y
If the compressor wire COMP(UVW) is well
connected, the connection sequence
forwards to clockwise direction?
N
Connect
wire well
Y
Replace
control board
AP1
Y
Remove
malfunction?
N
Replace
compressor
N
If the input voltage of unit
is normal?
Start to run until the
power resume normal
voltage
N
Y
If the refrigerant is too
much?
Charge the
refrigerant with
service manual
Y
N
Replace
control board
AP1
Remove
malfunction?
End
Y
N
Replace
compressor
End
82
Replace
outdoor fan
SERVICE
MANUAL
SERVICE
MANUAL
6.Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit)
Main detection point:
● If the electron expansion valve is connected well? Is the expansion valve damaged?
● If the refrigerant is leakage?
● If the overload protector is damaged?
Malfunction diagnosis process:
After the unit
de-energized
for 20min
If the overload protector SAT
is well connected?
N
Y
Under ambient temperature, test the
resistance of overload protector with ohmic
Y
N
If the wiring terminal FA of electron
expansion is well connected?
N
Y
The resistance value of
firs t 4 l e ad fo ot an d th e
fif th lead fo ot is similar,
less than 100
Replace
overload
protector SAT
Replace EKV
coil of electron
expansion valve
Remove
malfunction?
N
Check refrigerant, if there is
leakage, please refer to
specification
Remove
malfunction?
Y
N
Replace
control board
AP1
End
w w w . i n n o v a i r . c o m
83
Connect wire
well with wiring
diagram
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
7.Communication malfunction (AP1 below is control board of outdoor unit)
Main detection point:
● Check if the connection wire and the built-in wiring of indoor and outdoor unit is connected well and no damaged;
● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged
Malfunction diagnosis process:
Start
If the unit is operation
normal before malfunction
N
Y
Check connection
wire of indoor and
outdoor unit with
circuit diagram
Check builtin wiring of
indoor and
outdoor unit
Y
N
Connection
correct?
N
Malfunction of
circuit is
detected with
control board
AP1 voltage
Y
Check connection
wire of indoor and
outdoor unit with
circuit diagram
If the wiring is
damaged?
N
If the malfunction
is removed?
N
Check communication
circuit of outdoor unit
If the malfunction
is removed?
Problem of
communication
circuit
Replace outdoor
mainboard AP11
Y
If the
malfunction is
removed?
N
Replace indoor
board
N
Y
Y
Y
End
84
SERVICE
MANUAL
SERVICE
MANUAL
8.Diagnosis process for outdoor communication circuit
Start
Test voltage
value with Test
10 position in
diagram with
voltage meter
Number jumping
N
Y
Test voltage
value with Test
13 position in
diagram with
voltage meter
Y
Number jumping
N
Y
Outdoor unit
malfunction
Test voltage
value with Test
11 position in
diagram with
voltage meter
Number jumping
N
Y
Test voltage
value with Test
12 position in
diagram with
voltage meter
N
Number jumping
Y
The circuit of
outdoor unit
communication
is normal
w w w . i n n o v a i r . c o m
85
End
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Troubleshooting for Normal Malfunction
1. Air conditioner cant be started up
Possible Causes
No power supply, or poor
connection for power plug
Discriminating Method (Air conditioner Status)
Troubleshooting
Confirm whether its due to power failure. If yes,
After energization, operation indicator isnt bright wait for power recovery. If not, check power
and the buzzer cant give out sound
supply circuit and make sure the power plug is
connected well.
Wrong wire connection between
indoor unit and outdoor unit,
Under normal power supply circumstances,
or poor connection for wiring
operation indicator isnt bright after energization
terminals
Check the circuit according to circuit diagram
and connect wires correctly. Make sure all
wiring terminals are connected firmly
Make sure the air conditioner is grounded
reliably
Make sure wires of air conditioner is connected
After energization, room circuit breaker trips off at
correctly
Electric leakage for air conditioner
once
Check the wiring inside air conditioner. Check
whether the insulation layer of power cord is
damaged; if yes, place the power cord.
Model selection for air switch is
After energization, air switch trips off
Select proper air switch
improper
After energization, operation indicator is bright,
Replace batteries for remote controller
Malfunction of remote controller while no display on remote controller or buttons
Repair or replace remote controller
have no action.
2. Poor cooling (heating) for air conditioner
Possible Causes
Set temperature is improper
Rotation speed of the IDU fan
motor is set too low
Filter of indoor unit is blocked
Discriminating Method (Air conditioner Status)
Troubleshooting
Observe the set temperature on remote controller Adjust the set temperature
Small wind blow
Set the fan speed at high or medium
Check the filter to see its blocked
Clean the filter
Check whether the installation postion is proper
Adjust the installation position, and install the
Installation position for indoor unit
according to installation requirement for air
rainproof and sunproof for outdoor unit
and outdoor unit is improper
conditioner
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
Find out the leakage causes and deal with it.
Refrigerant is leaking
lower than normal discharged wind temperature; Add refrigerant.
Units pressure is much lower than regulated
range
Malfunction of 4-way valve
Blow cold wind during heating
Replace the 4-way valve
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
Malfunction of capillary
lower than normal discharged wind temperature; Replace the capillary
Unitt pressure is much lower than regulated
range. If refrigerant isnt leaking, part of capillary
is blocked
Flow volume of valve is
The pressure of valves is much lower than that
Open the valve completely
insufficient
stated in the specification
Refer to point 3 of maintenance method for
Malfunction of horizontal louver Horizontal louver cant swing
details
Refer to troubleshooting for H6 for maintenance
Malfunction of the IDU fan motor The IDU fan motor cant operate
method in details
Refer to point 4 of maintenance method for
Malfunction of the ODU fan motor The ODU fan motor cant operate
details
Refer to point 5 of maintenance method for
Malfunction of compressor
Compressor cant operate
details
3. Horizontal louver cant swing
Possible Causes
Discriminating Method (Air conditioner Status)
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Repair or replace stepping motor
Wrong wire connection, or poor
connection
Check the wiring status according to circuit
diagram
Stepping motor is damaged
Stepping motor cant operate
Others are all normal, while horizontal louver cant
Replace the main board with the same model
operate
Main board is damaged
86
SERVICE
MANUAL
SERVICE
MANUAL
4. ODU fan motor cant operate
Possible causes
Wrong wire connection, or poor
connection
Discriminating method (air conditioner status)
Check the wiring status according to circuit
diagram
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Measure the capacity of fan capacitor with an
Capacity of the ODU fan motor is universal meter and find that the capacity is out of
Replace the capacity of fan
damaged
the deviation range indicated on the nameplate of
fan capacitor.
Power voltage is a little low or
Use universal meter to measure the power supply
Suggest to equip with voltage regulator
high
voltage. The voltage is a little high or low
When unit is on, cooling/heating performance
Change compressor oil and refrigerant. If no
Motor of outdoor unit is damaged is bad and ODU compressor generates a lot of
better, replace the compressor with a new one
noise and heat.
5. Compressor cant operate
Possible causes
Wrong wire connection, or poor
connection
Discriminating method (air conditioner status)
Check the wiring status according to circuit
diagram
Troubleshooting
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
firmly
Measure the capacity of fan capacitor with an
universal meter and find that the capacity is out of
Replace the compressor capacitor
the deviation range indicated on the nameplate of
fan capacitor.
Power voltage is a little low or
Use universal meter to measure the power supply
Suggest to equip with voltage regulator
high
voltage. The voltage is a little high or low
Use universal meter to measure the resistance
Repair or replace compressor
Coil of compressor is burnt out
between compressor terminals and its 0
Cylinder of compressor is blocked Compressor cant operate
Repair or replace compressor
Capacity of compressor is
damaged
6. Air conditioner is leaking
Possible causes
Discriminating method (air conditioner status)
Troubleshooting
Eliminate the foreign objects inside the drain
pipe
Replace drain pipe
Drain pipe is blocked
Water leaking from indoor unit
Drain pipe is broken
Water leaking from drain pipe
Water leaking from the pipe connection place of
Wrap it again and bundle it tightly
indoor unit
Wrapping is not tight
7. Abnormal sound and vibration
Possible causes
Discriminating method (air conditioner status)
When turn on or turn off the unit,
the panel and other parts will
Theres the sound of "PAPA"
expand and theres abnormal
sound
When turn on or turn off the
unit, theres abnormal sound due
Water-running sound can be heard
to flow of refrigerant inside air
conditioner
Foreign objects inside the indoor
unit or therere parts touching
Theres abnormal sound fro indoor unit
together inside the indoor unit
Foreign objects inside the outdoor
unit or therere parts touching
Theres abnormal sound fro outdoor unit
together inside the outdoor unit
Short circuit inside the magnetic During heating, the way valve has abnormal
coil
electromagnetic sound
Abnormal shake of compressor
Outdoor unit gives out abnormal sound
Abnormal sound inside the
compressor
Abnormal sound inside the compressor
w w w . i n n o v a i r . c o m
87
Troubleshooting
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Remove foreign objects. Adjust all parts position
of indoor unit, tighten screws and stick damping
plaster between connected parts
Remove foreign objects. Adjust all parts position
of outdoor unit, tighten screws and stick
damping plaster between connected parts
Replace magnetic coil
Adjust the support foot mat of compressor,
tighten the bolts
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
INNOVAIR INVERTER PRESTIGE
Removal Procedure
for KIN310C2V31 , KIN413C2V31
Removal Procedure of Indoor Unit
Step
SERVICE MANUAL
Warning: Be sure to wait for a minimum of 20 minutes
after turning off all power supplies and discharge the
refrigerant completely before removal.
Procedure
1. Remove filter assembly
Front panel
Open the front panel. Push the left filter
and right filter until they are separate from
the groove on the front panel.
Remove the left filter and right filter
respectively.
Front
case
Left filter
Groove
Right filter
2. Remove horizontal louver
Push out the axile bush on horizontal
louver. Bend the horizontal louver with
hand and then separate the horizontal
louver from the crankshaft of step motor
to remove it.
Horizontal louver
Location of step motor
Axile bush
A1/A5/B6 display
3. Remove panel and display
a
b
(1)A1/A5 panel display: Screw off the 2
screws that are locking the display board.
Separate the display board from the front
panel.
(2)B2/A5/D2 panel display: Screw off
the 2 screws that are locking the display
board.
Panel
Front panel
Separate the panel rotation shaft from
the groove fixing the front panel and then
removes the front panel.
Panel rotation
Groove
88
A5/B2/D2 display
SERVICE
MANUAL
SERVICE
MANUAL
Step
Procedure
4. Remove detecting plate and electric box cover 2
Screw
Remove the screw fixing detecting plate
and then remove the detecting plate.
Note:The position of detection board(WIFI)
may be different for -different models.
Electric box cover2
Detecting plate
Screw
for 09K
Detecting plate
Remove the screw fixing electric box
cover 2 and then remove the electric box
cover 2.
for 12K
5. Remove front case sub-assy
a
Screws
Remove the screws fixing front case.
Note:
1.Open the screw caps before removing
the screws around the air outlet.
2.The quantity of screws fixing the front
case sub-assy is different for different
models.
Front case
sub-assy
Screw caps
Screw
Clasp
b
Loosen the connection clasps between
front case sub-assy and bottom case. Lift
up the front case sub-assy and take it out.
Front case
sub-assy
6. Remove vertical louver
Loosen the connection clasps between
vertical louver and bottom case to remove
vertical louver.
Bottom
case
Vertical
louver
Clasps
w w w . i n n o v a i r . c o m
89
Vertical
louver
INNOVAIR INVERTER PRESTIGE
Step
SERVICE MANUAL
Procedure
7. Remove electric box assy
a
Screw
Loosen the connection clasps between
shield cover of electric box sub-assy and
electric box, and then remove the shield
cover of electric box sub-assy.
Remove the screw fixing electric box assy .
Clasps
Electric box
Shield cover of electric
box sub-assy
b
① Take off the water retaining sheet.
Remove the cold plasma generator by
screwing off the locking screw on the
generator.
② Take off the indoor tube temperature
sensor.
③ Screw off 1 grounding screw.
④ Remove the wiring terminals of motor and
stepping motor.
⑤ Remove the electric box assy.
Grounding screw
Indoor tube
temperature
Electric box assy
sensor
Cold plasma
generator
Wiring
terminal
of motor
Screw
Wiring
terminal
of stepping
motor
Water retaining
sheet
Screw
c
Main board
Twist off the screws that are locking
each lead wire and rotate the electric
box assy.
Twist off the screws that are locking the
wire clip. Loosen the power cord and
remove its wiring terminal. Lift up the
main board and take it off.
Power cord
Screw
Wire clip
90
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Step
Procedure
Instruction: Some wiring terminal of this
product is with lock catch and other devices.
circlip
The pulling method is as below:
holder
1.Remove the soft sheath for some terminals
at first, hold the circlip and then pull out the
terminals.
2.Pull out the holder for some terminals at
connector
soft sheath
first (holder is not available for some wiring
terminal), hold the connector and then pull the
terminal.
8. Remove evaporator assy
a
Remove 3 screws fixing evaporator assy.
b
At the back of the unit, remove the
screw fixing connection pipe clamp and
then remove the connection pipe clamp.
Screws
Connection pipe clamp
Screw
Groove
c
Evaporator assy
Bottom case
First remove the left side of the evaporator
from the groove of bottom case and then
remove the right side from the clasp on
the bottom case.
Clasp
Evaporator assy
Connection pipe
d
Adjust the position of connection pipe
on evaporator slightly and then lift the
evaporator upwards to remove it.
w w w . i n n o v a i r . c o m
91
INNOVAIR INVERTER PRESTIGE
Step
SERVICE MANUAL
Procedure
9. Remove motor and cross flow blade
a
Remove the screws fixing motor clamp
and then remove the motor clamp.
Screws
Motor clamp
b
Remove the screws at the connection
place of cross flow blade and motor; lift
the motor and cross flow blade upwards
to remove them.
Remove the bearing holder sub-assy.
Remove the screw fixing step motor and
then remove the step motor.
Cross flow
Holder
sub-assy
Screw
Motor
Screws
Step motor
92
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Removal Procedure of Outdoor Unit
Warning: Be sure to wait for a minimum of 20 minutes
after turning off all power supplies and discharge the
refrigerant completely before removal.
NOTE: Take GWH12QC-D3DNA6E/O for example.
Steps
Procedure
1.Remove cable cross plate 2 and valve cover
Before disassamble.
Cable cross plate 2
screw
Remove 3 connection screw fixing cable
cross plate 2 and then remove the Cable
cross plate 2.
Remove 1 connection screw fixing valve cover
and then remove the valve cover.
Valve Cover
2.Remove top cover
top cover plate
Remove 3 connection screws among
top cover plate, front panel and right
side plate. Then remove top cover
plate.
w w w . i n n o v a i r . c o m
93
screw
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
3.Remove grille and front panel
Remove connection screws between the front grille
and the front panel. Then remove the front grille.
Remove connection screws connecting the front
panel with the chassis and the motor support, and
then remove the front panel.
Grille
Panel
4.Remove axial flow blade
Axial flow blade
Remove the nut fixing the blade and then
remove the axial flow blade.
5.Remove right side plate
Right side plate
Remove connection screws connecting the right
side plate with the valve support and the electric
box. Then remove the right side plate.
94
SERVICE
MANUAL
SERVICE
MANUAL
6.Remove electric box assy
Electric box assy
Remove the 2 screws fixing the cover of electric box. Lift to remove the cover. Loosen the
wire and disconnect the terminal. Lift to remove the electric box assy.
7.Remove 4-way valve assy
Unscrew the fastening nut of the 4-way Valve
Assy coil and remove the coil. Wrap the 4-
4-way Valve Assy
way Valve Assy with wet cotton and unsolder
the 4 weld spots connecting the 4-way Valve
Assy to take it out.(Note: Refrigerant should
be discharged firstly.) Welding process
should be as quickly as possible and keep
wrapping cotton wet all the time. Be sure not
to burn out the lead-out wire of compressor.
8.Remove capillary sub-assy
Capillary Sub-assy
Unsolder weld point of capillary Sub-assy,
valve and outlet pipe of condensator. Then
remove the capillary Sub-assy. Do not block
the capillary when unsoldering it. (Note: before unsoldering,discharge refrigerants
completely)
w w w . i n n o v a i r . c o m
95
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
9.Remove motor and motor support
Motor support
Remove the 4 tapping screws fixing the motor.
Pull out the lead-out wire and remove the
motor. Remove the 2 tapping screws fixing
Motor
the motor support. Lift motor support to remove it.
10.Remove clapboard sub-assy
Clapboard Sub-Assy
Loosen the screws of the Clapboard Sub-Assy .
The Clapboard Sub-Assy has a hook on the
lower side. Lift and pull the Clapboard Sub-Assy
to remove.
96
SERVICE
MANUAL
SERVICE
MANUAL
11.Remove Compressor
a
Remove the 2 screws fixing the gas valve.
Unsolder the welding spot connecting gas valve
and air return pipe and remove the gas valve.
(Note: it is necessary to warp the gas valve when
unsoldering the welding spot.) Remove the 2
screws fixing liquid valve. Unsolder the weld-
Liquid valve
ing spot connecting liquid valve and remove the
liquid valve.
Gas valve
b
Remove the 3 footing screws of the compressor
and remove the compressor.
w w w . i n n o v a i r . c o m
Compressor
97
SERVICE MANUAL
Appendix:
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32
Set temperature
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
61
60.8
16
62/63
62.6
17
64/65
64.4
18
66/67
66.2
19
68
68
20
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
69/70
69.8
21
71/72
71.6
22
73/74
73.4
23
75/76
75.2
24
77
77
25
Fahrenheit
display
temperature
(℉)
78/79
80/81
82/83
84/85
86
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature (℉)
(℉)
55/56
55.4
13
57/58
57.2
14
59/60
59
15
61/62
60.8
16
63
62.6
17
64/65
64.4
18
66/67
66.2
19
68/69
68
20
70/71
69.8
21
72
71.6
22
73/74
73.4
23
75/76
75.2
24
77/78
77
25
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
79/80
78.8
26
81
80.6
27
82/83
82.4
28
84/85
84.2
29
86/87
86
30
88/89
87.8
31
90
89.6
32
91/92
91.4
33
93/94
93.2
34
95/96
95
35
97/98
96.8
36
99
98.6
37
Fahrenheit
Celsius(℃)
(℉)
78.8
80.6
82.4
84.2
86
26
27
28
29
30
Ambient temperature
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
32/33
32
0
34/35
33.8
1
36
35.6
2
37/38
37.4
3
39/40
39.2
4
41/42
41
5
43/44
42.8
6
45
44.6
7
46/47
46.4
8
48/49
48.2
9
50/51
50
10
52/53
51.8
11
54
53.6
12
Appendix 2: Configuration of Connection Pipe
1.Standard length of connection pipe
● 16.40ft, 24.61ft, 26.25ft.
2.Min. length of connection pipe is 9.84ft.
3.Max. length of connection pipe and max. high difference.(More details please refer to the specifications)
4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe
● After the length of connection pipe is prolonged for 32.81ft at the basis of standard length, you should add 0.0013gal of refrigerant
oil for each additional 16.40ft of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):
● Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Outdoor unit throttle
Liquid pipe(inch)
Gas pipe(inch) Cooling only(oz/ft.) Cooling and heating(oz/ft.)
Ф1/4
Ф3/8or Ф1/2
0.2
0.2
Ф1/4 or Ф3/8
Ф5/8 or Ф3/4
0.2
0.6
Ф1/2
Ф3/4 or Ф7/8
0.3
1.3
Ф5/8
Ф1 or Ф1 1/4
0.7
1.3
Ф3/4
/
2.7
2.7
Ф7/8
/
3.8
3.8
98
SERVICE
MANUAL
SERVICE
MANUAL
Appendix 3: Pipe Expanding Method
Pipe
Note:
Pipe cutter
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
Leaning
A:Cut the pip
● Confirm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.
B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
Uneven
Burr
Pipe
Shaper
Downwards
C:Put on suitable insulating pipe
Union pipe
D:Put on the union nut
● Remove the union nut on the indoor connection pipe and outdoor valve; install
Pipe
the union nut on the pipe.
E:Expand the port
● Expand the port with expander.
Note:
Expander
Hard
mold
● "A" is different according to the diameter, please refer to the sheet below:
Outer
diameter(inch)
Ф0.24 - 0.25 (1/4")
Ф0.37 (3/8")
Ф0.47 - 0.50 (1/2")
Ф0.63 - 0.625 (5/8")
Max
0.05
0.06
0.07
0.09
A(inch)
Pipe
Min
0.03
0.04
0.04
0.09
F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.
Smooth surface
Improper expanding
leaning
The length is equal
w w w . i n n o v a i r . c o m
99
damaged
surface
crack
uneven
thickness
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Appendix 4: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K)
Temp.(oF)
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
Resistance(kΩ)
138.1
128.6
121.6
115
108.7
102.9
97.4
92.22
87.35
82.75
78.43
74.35
70.5
66.88
63.46
60.23
57.18
54.31
51.59
49.02
46.6
44.31
42.14
40.09
38.15
36.32
34.58
32.94
31.38
29.9
28.51
27.18
25.92
24.73
23.6
22.53
21.51
20.54
19.63
Temp.(oF)
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
Resistance(kΩ)
18.75
17.93
17.14
16.39
15.68
15
14.36
13.74
13.16
12.6
12.07
11.57
11.09
10.63
10.2
9.779
9.382
9.003
8.642
8.297
7.967
7.653
7.352
7.065
6.791
6.529
6.278
6.038
5.809
5.589
5.379
5.197
4.986
4.802
4.625
4.456
4.294
4.139
3.99
100
Temp.(oF)
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
Resistance(kΩ)
3.848
3.711
3.579
3.454
3.333
3.217
3.105
2.998
2.896
2.797
2.702
2.611
2.523
2.439
2.358
2.28
2.206
2.133
2.064
1.997
1.933
1.871
1.811
1.754
1.699
1.645
1.594
1.544
1.497
1.451
1.408
1.363
1.322
1.282
1.244
1.207
1.171
1.136
1.103
Temp.(oF)
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
Resistance(kΩ)
1.071
1.039
1.009
0.98
0.952
0.925
0.898
0.873
0.848
0.825
0.802
0.779
0.758
0.737
0.717
0.697
0.678
0.66
0.642
0.625
0.608
0.592
0.577
0.561
0.547
0.532
0.519
0.505
0.492
0.48
0.467
0.456
0.444
0.433
0.422
0.412
0.401
0.391
0.382
SERVICE
MANUAL
SERVICE
MANUAL
Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
181.4
171.4
162.1
153.3
145
137.2
129.9
123
116.5
110.3
104.6
99.13
94
89.17
84.61
80.31
76.24
72.41
68.79
65.37
62.13
59.08
56.19
53.46
50.87
48.42
46.11
43.92
41.84
39.87
38.01
36.24
34.57
32.98
31.47
30.04
28.68
27.39
26.17
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
25.01
23.9
22.85
21.85
20.9
20
19.14
18.13
17.55
16.8
16.1
15.43
14.79
14.18
13.59
13.04
12.51
12
11.52
11.06
10.62
10.2
9.803
9.42
9.054
8.705
8.37
8.051
7.745
7.453
7.173
6.905
6.648
6.403
6.167
5.942
5.726
5.519
5.32
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
5.13
4.948
4.773
4.605
4.443
4.289
4.14
3.998
3.861
3.729
3.603
3.481
3.364
3.252
3.144
3.04
2.94
2.844
2.752
2.663
2.577
2.495
2.415
2.339
2.265
2.194
2.125
2.059
1.996
1.934
1.875
1.818
1.736
1.71
1.658
1.609
1.561
1.515
1.47
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
1.427
1.386
1.346
1.307
1.269
1.233
1.198
1.164
1.131
1.099
1.069
1.039
1.01
0.983
0.956
0.93
0.904
0.88
0.856
0.833
0.811
0.77
0.769
0.746
0.729
0.71
0.692
0.674
0.658
0.64
0.623
0.607
0.592
0.577
0.563
0.549
0.535
0.521
0.509
w w w . i n n o v a i r . c o m
101
SERVICE MANUAL
Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
Temp.(oF)
-20.2
-18.4
-16.6
-14.8
-13
-11.2
-9.4
-7.6
-5.8
-4
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
Resistance(kΩ)
853.5
799.8
750
703.8
660.8
620.8
580.6
548.9
516.6
486.5
458.3
432
407.4
384.5
362.9
342.8
323.9
306.2
289.6
274
259.3
245.6
232.6
220.5
209
198.3
199.1
178.5
169.5
161
153
145.4
138.3
131.5
125.1
119.1
113.4
108
102.8
Temp.(oF)
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
Temp.(oF)
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
Resistance(kΩ)
98
93.42
89.07
84.95
81.05
77.35
73.83
70.5
67.34
64.33
61.48
58.77
56.19
53.74
51.41
49.19
47.08
45.07
43.16
41.34
39.61
37.96
36.38
34.88
33.45
32.09
30.79
29.54
28.36
27.23
26.15
25.11
24.13
23.19
22.29
21.43
20.6
19.81
19.06
102
Resistance(kΩ)
18.34
17.65
16.99
16.36
15.75
15.17
14.62
14.09
13.58
13.09
12.62
12.17
11.74
11.32
10.93
10.54
10.18
9.827
9.489
9.165
8.854
8.555
8.268
7.991
7.726
7.47
7.224
6.998
6.761
6.542
6.331
6.129
5.933
5.746
5.565
5.39
5.222
5.06
4.904
Temp.(oF)
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
Resistance(kΩ)
4.754
4.609
4.469
4.334
4.204
4.079
3.958
3.841
3.728
3.619
3.514
3.413
3.315
3.22
3.129
3.04
2.955
2.872
2.792
2.715
2.64
2.568
2.498
2.431
2.365
2.302
2.241
2.182
2.124
2.069
2.015
1.963
1.912
1.863
1.816
1.77
1.725
1.682
1.64
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
11. Removal Procedure
Warning: Be sure to wait for a minimum
of 20 minutes after turning off all power
supplies and discharge the refrigerant
completely before removal.
for KIN321C2V31 , KIN824C2V31
11.1 Removal Procedure of Indoor Unit
1. Remove filter as s y
Front panel
Open the front panel. Push the left and right
filters to make them break away from the
groove on the front case. Then remove the left
and right filters one by one.
Front
case
Left filter
Groove
Screw off the 2 screws that are locking the
display board. Separate the display board from
the front panel.
w w w . i n n o v a i r . c o m
103
Right filter
SERVICE MANUAL
Electric box cover 2
4. Remove electric box cover 2 and detecting plate(WIFI)
Screw
Remove the screws on the electric box
cover 2 and detecting plate(WIFI), then
remove the electric box cover 2 and
detecting plate(WIFI).
Screws
Detecting plate
(WIFI)
Loosen the connection clasps between
front case sub-assy and bottom case.
Lift up the front case sub-assy and take
it out.
Screw off the screws that are locking
the swing motor and take the motor off.
S wing motor
104
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Cut off the wire binder and pull out the
indoor tube temperature sensor.
Screw off one grounding screw.
Remove the wiring terminals of motor and
stepping motor.
Remove the electric box assy.
Screw off the screws that are locking each
lead wire.
Indoor tube
temperature s ensor
Main
board
G rounding
s c rew
Wi ring
terminal
of motor
Wire binder
Wiring
terminal
of stepping
motor
S crew
Rotate the electric box assy. Twist off the screws
that are locking the wire clip and loosen the
power cord. Remove the wiring terminal of
power cord. Lift up the main board and take it off.
S crew
P ower cord
Wire clip
w w w . i n n o v a i r . c o m
105
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
G roove
First remove the left side of evaporator from
the groove on the rear case assy. Then
remove the right side from the clasp on the
rear case assy.
R ear case ass y
C lasp
106
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
w w w . i n n o v a i r . c o m
107
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
11.2 Removal Procedure of Outdoor Unit
Warning: Be sure to wait for a minimum of 20 minutes after
turning off all power supplies and discharge the refrigerant
completely before removal.
NOTE: Take GWH24QE-D3DNA6E/O for example.
Steps
Procedure
1. Remove big handle,valve cover and top cover
a
big handle
Remove the screw connecting the big handle and
right side plate, and then remove the big handle.
Remove the screw connecting the valve cover and
right side plate, and then remove the valve cover.
valve cover
b
Remove the screws connecting the top cover with
outer case, right side plate and left side plate; lift
the top cover upwards to remove it.
top cover
2. Remove grille and outer case
Remove the 4 screws connecting the grille and
outer case, and then remove the panel grille.
grille
108
SERVICE
MANUAL
SERVICE
MANUAL
Steps
Procedure
Remove the screws connecting the outer case with
motor support, isolation plate and chassis; lift the
outer case upwards; loosen the clasps of outer
case with right side plate and left side plate, and
then remove the outer case.
outer case
3. Remove right&left side plate
a
Remove the screws connecting the right side plate
with electric box assy, valve support, chassis and
condenser side plate, and then remove the right
side plate.
right side plate
b
Remove the screws connecting the left side plate
with chassis, and then remove the left side plate.
left side plate
w w w . i n n o v a i r . c o m
109
SERVICE MANUAL
Steps
Procedure
4. Remove axial flow blade
a
Remove the nut fixing axial flow blade and then
remove the blade.
axial flow fan
motor support
b
Remove the 6 screws fixing the motor and then
remove the motor.
Remove the 2 screws connecting the motor support
and chassis, and then loosen the stopper to remove
the motor support.
fan motor
5. Remove electric box
electric box
Remove the screws fixing the electric box sub-assy;
loosen the wire bundle; pull out the wiring terminals
and then pull the electric box upwards to remove it.
110
SERVICE
MANUAL
SERVICE
MANUAL
Steps
Procedure
6. Remove the soundproof sponge
Tear off the sticking stripe and then remove the
soundproof sponge.
soundproof sponge
7. Remove isolation plate
Remove the 2 screws connecting the isolation plate
and condenser side plate; remove the 3 screws
connecting the isolation plate and chassis, and then
remove the isolation plate.
isolation plate
8. Remove 4-way valve assy
Unsolder the welding joints connecting the 4-way
valve assy with capillary sub-assy, compressor and
condenser; remove the 4-way valve.
Note:
Before unsoldering the welding joint, wrap the 4-way
valve with a wet cloth completely to avoid damage to
the valve caused by high temperature.
w w w . i n n o v a i r . c o m
4-way valve assy
111
INNOVAIR INVERTER PRESTIGE
Steps
SERVICE MANUAL
Procedure
9. Remove compressor
compressor
Remove the 3 foot nuts fixing compressor and then
lift the compressor upwards to remove the
compressor and damping cushion.
Note:
Keep the ports of discharge pipe and suction pipe
from foreign objects.
10. Remove condenser sub-assy
support
a
Remove the screws connecting the support
(condenser) and condenser assy,and then remove
the support(condenser).
condenser
sub-assy
b
Remove the 2 screws fixing the condenser and
chassis, and then lift the condenser upwards to
remove it.
chassis subassy
112
SERVICE
MANUAL
SERVICE
MANUAL
INNOVAIR INVERTER PRESTIGE
Appendix:
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32
Set temperature
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
61
60.8
16
62/63
62.6
17
64/65
64.4
18
66/67
66.2
19
68
68
20
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
69/70
69.8
21
71/72
71.6
22
73/74
73.4
23
75/76
75.2
24
77
77
25
Fahrenheit
display
temperature
(℉)
78/79
80/81
82/83
84/85
86
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature (℉)
(℉)
55/56
55.4
13
57/58
57.2
14
59/60
59
15
61/62
60.8
16
63
62.6
17
64/65
64.4
18
66/67
66.2
19
68/69
68
20
70/71
69.8
21
72
71.6
22
73/74
73.4
23
75/76
75.2
24
77/78
77
25
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
79/80
78.8
26
81
80.6
27
82/83
82.4
28
84/85
84.2
29
86/87
86
30
88/89
87.8
31
90
89.6
32
91/92
91.4
33
93/94
93.2
34
95/96
95
35
97/98
96.8
36
99
98.6
37
Fahrenheit
Celsius(℃)
(℉)
78.8
80.6
82.4
84.2
86
26
27
28
29
30
Ambient temperature
Fahrenheit
Fahrenheit
display
Celsius(℃)
temperature
(℉)
(℉)
32/33
32
0
34/35
33.8
1
36
35.6
2
37/38
37.4
3
39/40
39.2
4
41/42
41
5
43/44
42.8
6
45
44.6
7
46/47
46.4
8
48/49
48.2
9
50/51
50
10
52/53
51.8
11
54
53.6
12
Appendix 2: Configuration of Connection Pipe
1.Standard length of connection pipe
● 16.40ft, 24.61ft, 26.25ft.
2.Min. length of connection pipe is 9.84ft.
3.Max. length of connection pipe and max. high difference.(More details please refer to the specifications)
4.The additional refrigerant oil and refrigerant charging required after prolonging connection pipe
● After the length of connection pipe is prolonged for 32.81ft at the basis of standard length, you should add 5ml of refrigerant oil
for each additional 16.40ft of connection pipe.
● The calculation method of additional refrigerant charging amount (on the basis of liquid pipe):
● Basing on the length of standard pipe, add refrigerant according to the requirement as shown in the table. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe
Outdoor unit throttle
Liquid pipe(inch)
Gas pipe(inch) Cooling only(oz/ft.) Cooling and heating(oz/ft.)
Ф1/4
Ф3/8or Ф1/2
0.53
0.71
Ф1/4 or Ф3/8
Ф5/8 or Ф3/4
0.53
1.76
Ф1/2
Ф3/4 or Ф7/8
1.06
4.23
Ф5/8
Ф1 or Ф1 1/4
2.12
4.23
Ф3/4
/
8.82
8.82
Ф7/8
/
12.35
12.35
w w w . i n n o v a i r . c o m
113
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Appendix 3: Pipe Expanding Method
Pipe
Note:
Pipe cutter
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
Leaning
A:Cut the pip
● Confirm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.
B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
Uneven
Burr
Pipe
Shaper
Downwards
C:Put on suitable insulating pipe
Union pipe
D:Put on the union nut
● Remove the union nut on the indoor connection pipe and outdoor valve; install
Pipe
the union nut on the pipe.
E:Expand the port
● Expand the port with expander.
Note:
Expander
Hard
mold
● "A" is different according to the diameter, please refer to the sheet below:
Outer diameter(inch)
Ф1/4
Ф3/8
Ф1/2
Ф5/8
Max
2/39
1/16
1/14
5/53
A(inch)
Pipe
Min
1/36
1/51
1/51
2/23
F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.
Smooth surface
Improper expanding
leaning
The length is equal
114
damaged
surface
crack
uneven
thickness
SERVICE
MANUAL
SERVICE
MANUAL
Appendix 4: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K)
Temp.(oF)
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
Resistance(kΩ)
138.1
128.6
121.6
115
108.7
102.9
97.4
92.22
87.35
82.75
78.43
74.35
70.5
66.88
63.46
60.23
57.18
54.31
51.59
49.02
46.6
44.31
42.14
40.09
38.15
36.32
34.58
32.94
31.38
29.9
28.51
27.18
25.92
24.73
23.6
22.53
21.51
20.54
19.63
Temp.(oF)
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
w w w . i n n o v a i r . c o m
Temp.(oF)
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
Resistance(kΩ)
18.75
17.93
17.14
16.39
15.68
15
14.36
13.74
13.16
12.6
12.07
11.57
11.09
10.63
10.2
9.779
9.382
9.003
8.642
8.297
7.967
7.653
7.352
7.065
6.791
6.529
6.278
6.038
5.809
5.589
5.379
5.197
4.986
4.802
4.625
4.456
4.294
4.139
3.99
115
Resistance(kΩ)
3.848
3.711
3.579
3.454
3.333
3.217
3.105
2.998
2.896
2.797
2.702
2.611
2.523
2.439
2.358
2.28
2.206
2.133
2.064
1.997
1.933
1.871
1.811
1.754
1.699
1.645
1.594
1.544
1.497
1.451
1.408
1.363
1.322
1.282
1.244
1.207
1.171
1.136
1.103
Temp.(oF)
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
Resistance(kΩ)
1.071
1.039
1.009
0.98
0.952
0.925
0.898
0.873
0.848
0.825
0.802
0.779
0.758
0.737
0.717
0.697
0.678
0.66
0.642
0.625
0.608
0.592
0.577
0.561
0.547
0.532
0.519
0.505
0.492
0.48
0.467
0.456
0.444
0.433
0.422
0.412
0.401
0.391
0.382
INNOVAIR INVERTER PRESTIGE
SERVICE MANUAL
Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
Temp.(oF)
Resistance(kΩ)
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
181.4
171.4
162.1
153.3
145
137.2
129.9
123
116.5
110.3
104.6
99.13
94
89.17
84.61
80.31
76.24
72.41
68.79
65.37
62.13
59.08
56.19
53.46
50.87
48.42
46.11
43.92
41.84
39.87
38.01
36.24
34.57
32.98
31.47
30.04
28.68
27.39
26.17
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
25.01
23.9
22.85
21.85
20.9
20
19.14
18.13
17.55
16.8
16.1
15.43
14.79
14.18
13.59
13.04
12.51
12
11.52
11.06
10.62
10.2
9.803
9.42
9.054
8.705
8.37
8.051
7.745
7.453
7.173
6.905
6.648
6.403
6.167
5.942
5.726
5.519
5.32
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
5.13
4.948
4.773
4.605
4.443
4.289
4.14
3.998
3.861
3.729
3.603
3.481
3.364
3.252
3.144
3.04
2.94
2.844
2.752
2.663
2.577
2.495
2.415
2.339
2.265
2.194
2.125
2.059
1.996
1.934
1.875
1.818
1.736
1.71
1.658
1.609
1.561
1.515
1.47
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
260.6
262.4
264.2
266
267.8
269.6
271.4
273.2
275
276.8
1.427
1.386
1.346
1.307
1.269
1.233
1.198
1.164
1.131
1.099
1.069
1.039
1.01
0.983
0.956
0.93
0.904
0.88
0.856
0.833
0.811
0.77
0.769
0.746
0.729
0.71
0.692
0.674
0.658
0.64
0.623
0.607
0.592
0.577
0.563
0.549
0.535
0.521
0.509
116
SERVICE
MANUAL
SERVICE
MANUAL
Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
Temp.(oF)
-20.2
-18.4
-16.6
-14.8
-13
-11.2
-9.4
-7.6
-5.8
-4
-2.2
-0.4
1.4
3.2
5
6.8
8.6
10.4
12.2
14
15.8
17.6
19.4
21.2
23
24.8
26.6
28.4
30.2
32
33.8
35.6
37.4
39.2
41
42.8
44.6
46.4
48.2
Resistance(kΩ)
853.5
799.8
750
703.8
660.8
620.8
580.6
548.9
516.6
486.5
458.3
432
407.4
384.5
362.9
342.8
323.9
306.2
289.6
274
259.3
245.6
232.6
220.5
209
198.3
199.1
178.5
169.5
161
153
145.4
138.3
131.5
125.1
119.1
113.4
108
102.8
Temp.(oF)
50
51.8
53.6
55.4
57.2
59
60.8
62.6
64.4
66.2
68
69.8
71.6
73.4
75.2
77
78.8
80.6
82.4
84.2
86
87.8
89.6
91.4
93.2
95
96.8
98.6
100.4
102.2
104
105.8
107.6
109.4
111.2
113
114.8
116.6
118.4
w w w . i n n o v a i r . c o m
Temp.(oF)
120.2
122
123.8
125.6
127.4
129.2
131
132.8
134.6
136.4
138.2
140
141.8
143.6
145.4
147.2
149
150.8
152.6
154.4
156.2
158
159.8
161.6
163.4
165.2
167
168.8
170.6
172.4
174.2
176
177.8
179.6
181.4
183.2
185
186.8
188.6
Resistance(kΩ)
98
93.42
89.07
84.95
81.05
77.35
73.83
70.5
67.34
64.33
61.48
58.77
56.19
53.74
51.41
49.19
47.08
45.07
43.16
41.34
39.61
37.96
36.38
34.88
33.45
32.09
30.79
29.54
28.36
27.23
26.15
25.11
24.13
23.19
22.29
21.43
20.6
19.81
19.06
117
Resistance(kΩ)
18.34
17.65
16.99
16.36
15.75
15.17
14.62
14.09
13.58
13.09
12.62
12.17
11.74
11.32
10.93
10.54
10.18
9.827
9.489
9.165
8.854
8.555
8.268
7.991
7.726
7.47
7.224
6.998
6.761
6.542
6.331
6.129
5.933
5.746
5.565
5.39
5.222
5.06
4.904
Temp.(oF)
190.4
192.2
194
195.8
197.6
199.4
201.2
203
204.8
206.6
208.4
210.2
212
213.8
215.6
217.4
219.2
221
222.8
224.6
226.4
228.2
230
231.8
233.6
235.4
237.2
239
240.8
242.6
244.4
246.2
248
249.8
251.6
253.4
255.2
257
258.8
Resistance(kΩ)
4.754
4.609
4.469
4.334
4.204
4.079
3.958
3.841
3.728
3.619
3.514
3.413
3.315
3.22
3.129
3.04
2.955
2.872
2.792
2.715
2.64
2.568
2.498
2.431
2.365
2.302
2.241
2.182
2.124
2.069
2.015
1.963
1.912
1.863
1.816
1.77
1.725
1.682
1.64
Download PDF