Midea N series User manual

Website: www.mideaaircon.com
Service Manual
AIR CONDITIONER
Portable Type
N portable (AHAM
standard)
MPN-05CRN1-BH2(H)
US-KC15Y1/N1-N(H2H)
MPN-08CRN1-BH2(H)
US-KC23Y1/N1-N(H2H)
MPN-12CRN1-BH9(H)
US-KC35Y1/N1-N(H9H)
N portable (ASHRAE
standard)
MPN-05CRN1-BH9
US-KC15Y1/N1-N(H9)
MPN-08CRN1-BH9
US-KC23Y1/N1-N(H9)
MPN-085CRN1-BH9
US-KC25Y1/N1-N(H9)
MPN-10CRN1-BH9
US-KC30Y1/N1-N(H9)
MPN-12CRN1-BH9
US-KC35Y1/N1-N(H9)
MPN-14CRN1-BI6
US-KC41Y1/N1-N(I6)
N1 portable (AHAM
standard)
MPN1-08CRN1-BH2(H)
US-KC23Y1/N1-N1(H2H)
MPN1-09CRN1-BH2(H)
US-KC26Y1/N1-N1(H2H)
MPN1-10CRN1-BH2(H)
US-KC30Y1/N1-N1(H2H)
MPN1-12CRN1-BH9(H)
US-KC35Y1/N1-N1(H9H)
N1 portable (ARI
standard)
MPN1-08CRN1-BH9
US-KC23Y1/N1-N1(H9)
MPN1-10CRN1-BH9
US-KC30Y1/N1-N1(H9)
MPN1-12CRN1-BH9
US-KC35Y1/N1-N1(H9)
MPN1-14CRN1-BI6
US-KC41Y1/N1-N1(I6)
N series
N1 series

CONTENT
1Safety precaution ................................................................................................... 1
1.1 Installation ....................................................................................................................................1
1.2 Caution..........................................................................................................................................1
1.3 Operational....................................................................................................................................1
2Out dimension ........................................................................................................ 2
3Display ................................................................................................................... 3
4Refrigerant cycle diagram........................................................................................ 4
5PCB drawing & wiring diagram................................................................................. 5
6Specification .......................................................................................................... 6
7Installation detail.................................................................................................... 7
7.1 Position requirement for installation...............................................................................................7
7.2 Preparation work............................................................................................................................7
7.3 Installation in a double-hung sash windows................................................................................... 8
7.4 Installation in a sliding sash windows ............................................................................................ 9
8Feature..................................................................................................................11
9Basic test procedure ...............................................................................................12
9.1 Defective compressor ...................................................................................................................12
9.2 Sealed refrigeration system repairs ...............................................................................................14
9.3 Fan motor.....................................................................................................................................15
9.4 Capacitor......................................................................................................................................15
10 Characteristic of temperature sensor....................................................................16
11 Trouble shooting.................................................................................................17

1
1Safety precaution
1.1 Installation
For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized service
center.
Do not disassemble or repair the product by yourself.
Sharp edges could cause injury, be especially careful of the case edges and the fins on the
condenser and evaporator.
Be sure the installation area does not deteriorate with age.
Take care to ensure that power cable could not be pulled out or damaged during operation.
Do not place anything on the power cable.
Do not plug or unplug the power supply plug during operation.
Do not store or use flammable gas or combustible near the product.
When flammable gas leaks, turn off the gas and open a window for ventilation before turn the
product on.
If strange sounds, or small or smoke comes from product.Turn the breaker off or disconnect the
power supply cable as soon as possible.
When the product is soaked (flooded or submerged), contact an Authorized service center.
Be caution that water could not enter the product.
Turn the main power off when cleaning or maintaining the product.
When the product is not be used for a long time, disconnect the power supply plug or turn off the
breaker.
1.2 Caution
Always check for gas (refrigerant) leakage after installation or repair of product.
Install the drain hose to ensure that water is drained away properly.
Keep level even when installing the product.
Do not install the product where the noise or hot air from the outdoor unit could damage the
neighborhoods.
Use two or more people to lift and transport the product.
Do not install the product where it will be exposed to sea wind (salt spray) directly.
1.3 Operational
Do not expose the skin directly to cool air for long periods of time. (Do not sit in the draft).
Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a
consumer air conditioner, not a precision refrigerant system.
Do not block the inlet or outlet of air flow.
Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.
Do not touch the metal parts of the product when removing the air filter. They are very sharp.
Do not step on pr put anything on the product. (Outdoor units)
Always insert the filter securely. Clean the filter every two weeks or more often if necessary.
Do not insert hands or other object through air inlet or outlet while the product is operated.
Do not drink the water drained from the product.
Use a firm stool or ladder when cleaning or maintaining the product.
Replace the all batteries in the remote control with new ones of the same type. Do not mix old
and mew batteries or different types of batteries.
Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do
not use the remote of the batteries have leaked.

2
2Out dimension
730
814

3
3Display
Fig.4
Selects the appropriate operatingmode.
Each time you press the button, a mode
is selected in a sequence that goes from
AUTO, COOL, DRY, FAN and HEAT(cooling
only modelswithout). The modeindicator light
illuminates under the different mode settings
Fig.4.
MODE select button
Used toadjust (increasing/decreasing)
temperature settings(1 C/2 F increments)
ina range of 17 C(62 F) to 30 C(88F) or
the TIMER setting ina rangeof 0~24hrs..
UP( ) and DOWN( ) button
NOTE: The control is capable of displaying
temperature in degrees Fahrenheit or degrees
Celsius. To convert from one to the other, press
and hold the Up and Down buttons at the same
time, for 3 seconds.
Used to initiate the AUTO ON start time and
AUTO OFF stop time program, in conjuction
with the & buttons.
TIMER button
Used to initiate the SLEEP operation.
SLEEP button
Power switchon/off.
POWER button
FC
Controlthefanspeed.Press toselect thefan
speedinthreesteps-LOW,MED,andHI.
Thefanspeedindicator lightilluminatesunder
differentfansettings.
FAN button
Shows the settemperature in C
O
""
"" or F and theAuto-timer settings.
While onDRY andFAN modes, it shows
the room temperature.
O
LED Display
Error codes:
E1-
E2-
P1-
Room temperature sensor error-
Unplug the unit and plug it back in.
If error repeats, call for service.
Evaporator temperature sensor error-
Unplug the unit and plug it back in.
If error repeats, call for service.
Bottom tray is full - Connect the
drain hose and drain the collected
water away. If error repeats, call
for service.
Remote signal receptor
(Some models havethe
signal receptor on the
front panel , Fig.2)
(The model has no
auto swing feature
withou t this butt on)
Press the ION button, the ion generator
is ener gized and will help to remove
pollenand impur ities from the air, and
trap them inth e filter. Press itagainto
stop the function.
ION button(optional)
When the operation is ON, pressthe
SWING button canstop the louver at
the desired ang le. The louver swing up
to an angle of 6 for each press. Keep
pressing thebuttonmorethan 2 seconds
can initiate the auto swing feature.
O
SWING button
(Applicable to the models with auto swing feature only)

4
4Refrigerant cycle diagram
The figure below is a brief description of the important components and their function in what is
called the refrigeration system

5
5PCB drawing & wiring diagram
~
~
EL
SU
T hi s s ym bo l in di ca te s th e e le me nt i s
o pt io na l, th e a ct ua l sh ap e sh al l p re va il

6
6Specification
Model
System
Market model
Cooling
EER
Amps
(Cool)
Watts
(Cool)
Compressor
R
Amount
Design
Pressure
Air Flow
Btu/H
Btu/H.W
A
W
oz/g
Psig
M3/H(CFM)
MPN-05CRN1-BH2(H)
5000
8.2
5.4
600
39A121AA&54KA
R410A
10.2/290
550/340
360/310/270
MPN-08CRN1-BH2(H)
8000
8.2
8.5
950
39A191AD&5JKB
R410A
11.3/320
550/340
360/310/270
MPN-12CRN1-BH9(H)
12000
8.9
11.9
1340
44A281BG&FJKC
R410A
15.2/430
550/340
600/530/450
MPN-05CRN1-BH9
5800
8.9
5.8
650
39A111AA&54KA
R410A
9.88/280
550/340
360/300/260
MPN-08CRN1-BH9
8100
8.9
8.2
910
39A171AD&5DKB
R410A
10.23/290
550/340
360/300/260
MPN-085CRN1-BH9
8500
8.9
8.5
950
39A171AD&5DKB
R410A
10.23/290
550/340
360/300/260
MPN-10CRN1-BH9
10000
8.9
10.1
1125
44A231BG&FEKC
R410A
13.1/370
550/340
360/300/260
MPN-12CRN1-BH9
12000
8.9
11.9
1340
EA103M1C-1DZDU1
R410A
14.8/420
550/340
600/530/450
MPN-14CRN1-BI6
14000
9.6
12.5
1400
44A281BG&FJKC
R410A
14.8/420
550/340
600/530/450
MPN1-08CRN1-BH2(H)
8000
8.2
8.5
950
39A191AD&5JKB
R410A
13.1/370
550/340
370/320/270
MPN1-09CRN1-BH2(H)
9000
8.2
9.8
1090
44A231BG&FEKC
R410A
14.5/410
550/340
390/360/330
MPN1-10CRN1-BH2(H)
10000
8.2
10.8
1210
EA103M1C-1DZDU1
R410A
14.8/420
550/340
390/360/330
MPN1-12CRN1-BH9(H)
12000
8.9
11.9
1340
44A281BG&FJKC
R410A
15.2/430
550/340
600/530/450
MPN1-08CRN1-BH9
8100
8.9
8.2
940
39A171AD&5DKB
R410A
10.6/300
550/340
380/330/290
MPN1-10CRN1-BH9
10000
8.9
10.1
1170
44A231BG&FEKC
R410A
14.1/400
550/340
380/330/290
MPN1-12CRN1-BH9
12000
8.9
11.9
1340
EA103M1C-1DZDU1
R410A
15.2/430
550/340
470/430/370
MPN1-14CRN1-BI6
14000
9.6
12.5
1400
44A281BG&FJKC
R410A

7
7Installation detail
7.1 Position requirement for installation
Installation must be in a flat and spacious location where the air outlets will not be covered up. A
minimum clearance of 30cm from a wall or other obstacles should be kept. The appliance shall
not be used in the washroom. The plug shall accessible after appliance is positioned. Wiring shall
be done according to National rules. Please see the picture show as below.
7.2 Preparation work
First of all, prepare the exhaust hose as the below picture show to you.
Second, connect the exhaust hose with unit, like the blow picture.
After this two steps, please make sure the exhaust hose’s connect is OK.
30cm
30cm
Flat mouth
Use the screws to
install the flat mouth
Pushin

8
7.3 Installation in a double-hung sash windows
7.3.1 Cut the foam seal (adhesive type) to the proper length and attach it to the window stool.
7.3.2 Attach the window panel to the window stool.
Adjust the length of the window panel according to the width of window, short the adjustable
panel if the width of window is less than 26”.
Open the window sash and place the window panel on the window stool.
Secure the window panel to the window stool with 2 screws.
7.3.3 Cut the foam seal (adhesive type) to the proper length attach it on the top of window.Show
as below picture.