Midea MFE-60ARN1-RB4W User manual

EFEU-A-1312
SERVICE MANUAL
MIDEA AIRCONDITIONER
FLOOR STANDING TYPE
Model:
MFE-60ARN1-RB4W
MFE-60AMN1-RB4W
Code
Factory model
Model
Power supply
2T0043800005
CE-KFR160LW/SDN1Y-E(B4)
MFE-60AMN1-RB4W
3Ph, 380-420V～, 50Hz
2T0043800026
CE-KFR160LW/SDN1Y-E(B4)-W[J]
MFE-60ARN1-RB4W
3Ph, 380-420V～, 50Hz
2T0043800036
EU-KFR150LW/SDN1Y-E(B4)-W
MFE-60ARN1-RB4W
3Ph, 380-420V～, 50Hz

CONTENTS
1. Safety Precautions.................................................................................................................... 1
1.1 Precaution.................................................................................................................................................... 1
1.2 Installation.................................................................................................................................................... 1
1.3 Caution.......................................................................................................................................................... 1
1.4 Operational................................................................................................................................................... 2
2. Dimension.................................................................................................................................. 3
2.1 Indoor Unit..................................................................................................................................................... 3
2.2 Outdoor Unit.................................................................................................................................................. 4
3. Refrigerant cycle diagram........................................................................................................ 5
4. Wiring diagram.......................................................................................................................... 6
4.1MFE-60AMN1-RB4W.................................................................................................................................. 6
4.2MFE-60ARN1-RB4W(2T0043800026).................................................................................................... 7
4.3MFE-60ARN1-RB4W(2T0043800036).................................................................................................... 8
5. Installation details..................................................................................................................... 9
5.1 Installation place.......................................................................................................................................... 9
5.2 Installing.......................................................................................................................................................10
5.3 Refrigerant pipe connection....................................................................................................................13
5.4 Drain pipe of the indoor unit....................................................................................................................26
5.5 Wiring............................................................................................................................................................27
5.6 Test run.........................................................................................................................................................27
6. External view and display...................................................................................................... 28
6.1 Parts names................................................................................................................................................28
6.2 Control panel...............................................................................................................................................29
6.3 LED...............................................................................................................................................................30

7. Operation characteristics ...................................................................................................... 31
8. Electronic function ................................................................................................................. 32
8.1Main data introduction...............................................................................................................................32
8.2Main Protection...........................................................................................................................................32
8.3Operation modes and functions..............................................................................................................33
8.4Other functions............................................................................................................................................40
9. Trouble shooting..................................................................................................................... 40
9.1Self-diagnosis.......................................................................................................................... 40
9.2LEDs for the indication of outdoor trouble .............................................................................. 41
9.3Troubles and solutions............................................................................................................ 42

1
1. Safety Precautions
1.1 Precaution
To prevent injury to the user or other people and property damage, the following instruction
s must be followed.
Incorrect operation due to ignoring instruction will cause harm or damage.
Before service unit, be sure to read this service manual at first.
1.2 Installation
For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized servic
e 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 th
e 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 operatio
n.
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 disconne
ct 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.
1.3 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 t
he 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.

2
1.4 Operational
Do not expose the skin directly to cool air for long periods of time. (Do not sit in the draf
t).
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 sh
arp.
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 necessar
y.
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.

3
2. Dimension
2.1 Indoor Unit
Dimension
Mode
W
(mm) D (mm) H (mm)
55K 600 358 1900

4
2.2 Outdoor Unit
Dimension
Model
W
(mm)
D
(mm)
H
(mm)
W1
(mm)
A
(mm)
B
(mm)
MOI-60H-RB4W
940
360
1245
1020
602
380
MOU-60HN1-RB4W
(2T0043800026)
900
350
1170
985
590
378
MOU-60HN1-RB4W
(2T0043800036)
938
633.5
404
448
370
392

5
3. Refrigerant cycle diagram
MOI-60H-RB4W MOU-60HN1-RB4W(2T0043800036)
LIQUID SIDE
GAS SIDE
HEAT
EXCHANGE
(EVAPORATOR) HEAT
EXCHANGE
(CONDENSER)
Compressor
2-WAY VALVE
3-WAY VALVE
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room temp.
sensor
T3 Condenser
temp. sensor
Accumulator
T5 Discharge temp. sensor
INDOOR OUTDOOR
Low pressure
switch
High pressure switch
CHECK VALVE
(Heating Model only)
CAPILIARY TUBE
For MOI-60H-RB4W, there is no low pressure switch.
MOU-60HN1-RB4W(2T0043800026)
LIQUID SIDE
GAS SIDE
HEAT
EXCHANGE
(EVAPORATOR) HEAT
EXCHANGE
(CONDENSER)
Compressor
2-WAY VALVE
3-WAY VALVE
4-WAY VALVE
COOLING
HEATING
T2 Evaporator
temp. sensor
T1 Room temp.
sensor
T3 Condenser
temp. sensor
T5 Discharge temp. sensor
T4 Ambient
temp. sensor
INDOOR OUTDOOR
Oil return Capillary
Oil separator
Low pressure
switch
High pressure switch
CHECK VALVE
(Heating Model only)
CAPILIARY TUBE

6
4. Wiring diagram
4.1MFE-60AMN1-RB4W
Indoor Unit
Outdoor Unit

7
4.2MFE-60ARN1-RB4W(2T0043800026)
Indoor Unit
Outdoor Unit