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Page 1: Ac Inverter Service Manual

Content

1

MSC-18HRIN1; MSH-18HRIN1 MSE-09HRIN2; MSE-12HRIN2

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Content

2

Content

1. Precaution........................................................................................................................... 1

1.1 Safety Precaution ................................................................................................................................. 1 1.2 Warning................................................................................................................................................. 1

2. Function .............................................................................................................................. 3 3. Dimension ........................................................................................................................... 5

3.1 Indoor unit(Alfa) ............................................................................................................................... 5 3.2 Outdoor unit(Alfa) ............................................................................................................................ 5 3.3 Indoor unit(Corona).......................................................................................................................... 6 3.4 Outdoor unit(Corona) ....................................................................................................................... 6 3.5 Indoor unit(Inverter Eco)....................................................................................................................... 7 3.6 Outdoor unit(Inverter Eco) .................................................................................................................... 7 3.7 Indoor unit(Inverter Star)....................................................................................................................... 8 3.8 Outdoor unit(Inverter Star).................................................................................................................... 9

4. Specification ..................................................................................................................... 10 5. Refrigerant cycle diagram ............................................................................................... 12 6. Operation limits ................................................................................................................ 13

6.1 Cooling operation ............................................................................................................................... 13 6.2 Heating operation ............................................................................................................................... 13

7. Schematic diagram and Wiring diagram ........................................................................ 14 7.1. Schematic diagram............................................................................................................................. 14 7.2. Wiring diagram.................................................................................................................................... 18

8. Installation details ............................................................................................................ 23 8.1 Wrench torque sheet for installation................................................................................................... 23 8.2 Connecting the cables........................................................................................................................ 23 8.3 Pipe length and the elevation ............................................................................................................. 23 8.4 Air purging of the piping and indoor unit ............................................................................................ 24 8.5 Pumping down (Re-installation) ......................................................................................................... 25 8.6 Re-air purging (Re-installation) .......................................................................................................... 26 8.7 Balance refrigerant of the 2-way, 3-way valves.................................................................................. 27 8.8 Evacuation .......................................................................................................................................... 28 8.9 Gas charging ...................................................................................................................................... 29

9. Pressure table................................................................................................................... 30 9.1 MSH-18HRIN1.................................................................................................................................... 30 9.2 MSC-18HRIN1.................................................................................................................................... 30

10. Capacity table ................................................................................................................... 31 10.1 MSH-18HRIN1.................................................................................................................................... 31 10.2 MSC-18HRIN1.................................................................................................................................... 32 10.3 MSG-09HRI ........................................................................................................................................ 33 10.4 MSG-12HRI ........................................................................................................................................ 33 10.5 MSG-21HRI ........................................................................................................................................ 34 10.6 MSG-24HRI ........................................................................................................................................ 34

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11. Electronic function........................................................................................................... 35 11.1. Display board...................................................................................................................................... 35 11.2. Protection............................................................................................................................................ 35 11.3. Fan-only mode.................................................................................................................................... 35 11.4. Cooling mode...................................................................................................................................... 35 11.5. Dehumidifying mode........................................................................................................................... 36 11.6. Heating mode ..................................................................................................................................... 36 11.7. Defrosting operation (Available for heating only). .............................................................................. 38 11.8. Outdoor low temperature protection (optional)................................................................................... 38 11.9. Automatic operation mode ................................................................................................................. 38 11.10. Manual switch..................................................................................................................................... 39 11.11. Timer Function.................................................................................................................................... 39 11.12. Sleep mode......................................................................................................................................... 39 11.13. Auto restart function ........................................................................................................................... 39 11.14. Turbo function..................................................................................................................................... 39 11.15. Plasma................................................................................................................................................ 39

12. Model and Parameters ..................................................................................................... 40 13. Troubleshooting ............................................................................................................... 42

13.1 Indoor Unit Error Display .................................................................................................................... 42 13.2 Diagnostic chart.................................................................................................................................. 47 13.3 Resetting phenomenon often occurs during operation ...................................................................... 48 13.4 Operation lamp flashes and Timer lamp off ....................................................................................... 48 13.5 Operation lamp flashes and Timer lamp on ....................................................................................... 48 13.6 Operation lamp off and Timer lamp flashes ....................................................................................... 49 13.7 Operation lamp on and Timer lamp flashes ....................................................................................... 49 13.8 Operation lamp flashes, Timer lamp flashes...................................................................................... 49

14 Characteristic of temperature sensor............................................................................. 50

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Page 4: Ac Inverter Service Manual

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Service manual

1

1. Precaution 1.1 Safety Precaution

n To prevent injury to the user or other people and property damage, the following instructions must be followed. n Incorrect operation due to ignoring instruction will cause harm or damage. n Before service unit, be sure to read this service manual at first.

1.2 Warning Ø Installation n Do not use a defective or underrated circuit breaker.

Use this appliance on a dedicated circuit. There is risk of fire or electric shock.

n For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized service center. Do not disassemble or repair the product, there is risk of fire or electric shock.

n Always ground the product. There is risk of fire or electric shock.

n Install the panel and the cover of control box securely. There is risk of fire of electric shock.

n Always install a dedicated circuit and breaker. Improper wiring or installation may cause fore or electric shock.

n Use the correctly rated breaker of fuse. There is risk of fire or electric shock.

n Do not modify or extend the power cable. There is risk of fire or electric shock.

n Do not install, remove, or reinstall the unit by yourself (customer). There is risk of fire, electric shock, explosion, or injury.

n Be caution when unpacking and installing the product. Sharp edges could cause injury, be especially careful of the case edges and the fins on the condenser and evaporator.

n For installation, always contact the dealer or an Authorized service center. There is risk of fire, electric shock, explosion, or injury.

n Do not install the product on a defective installation stand. It may cause injury, accident, or damage to the product.

n Be sure the installation area does not deteriorate with age. If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.

n Do not let the air conditioner run for a long time when the humidity is very high and a door or a windows is left open. Moisture may condense and wet or damage furniture.

n Take care to ensure that power cable could not be pulled out or damaged during operation. There is risk of fire or electric shock.

n Do not place anything on the power cable.

There is risk of fire or electric shock. n Do not plug or unplug the power supply plug during

operation. There is risk of fire or electric shock.

n Do not touch (operation) the product with wet hands. There is risk of fire or electric shock.

n Do not place a heater or other appliance near the power cable. There is risk of fire and electric shock.

n Do not allow water to run into electric parts. It may cause fire, failure of the product, or electric shock.

n Do not store or use flammable gas or combustible near the product. There is risk of fire or failure of product.

n Do not use the product in a tightly closed space for a long time. Oxygen deficiency could occur.

n When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

n If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. There is risk of electric shock or fire.

n Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives. There is risk of property damage, failure of product, or electric shock.

n Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

n When the product is soaked (flooded or submerged), contact an Authorized service center. There is risk of fire or electric shock.

n Be caution that water could not enter the product. There is risk of fire, electric shock, or product damage.

n Ventilate the product from time to time when operating it together with a stove, etc. There is risk of fire or electric shock.

n Turn the main power off when cleaning or maintaining the product.

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Service manual

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There is risk of electric shock. n When the product is not be used for a long time,

disconnect the power supply plug or turn off the breaker. There is risk of product damage or failure, or unintended operation.

n Take care to ensure that nobody could step on or fall onto the outdoor unit. This could result in personal injury and product damage. Ø CAUTION n Always check for gas (refrigerant) leakage after

installation or repair of product. Low refrigerant levels may cause failure of product.

n Install the drain hose to ensure that water is drained away properly. A bad connection may cause water leakage.

n Keep level even when installing the product. To avoid vibration of water leakage.

n Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. It may cause a problem for your neighbors.

n Use two or more people to lift and transport the product. Avoid personal injury.

n Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Ø Operational n Do not expose the skin directly to cool air for long

periods of time. (Do not sit in the draft). This could harm to your health.

n 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. There is risk of damage or loss of property.

n Do not block the inlet or outlet of air flow. It may cause product failure.

n Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. There is risk of fire, electric shock, or damage to the plastic parts of the product.

n Do not touch the metal parts of the product when removing the air filter. They are very sharp. There is risk of personal injury.

n Do not step on pr put anything on the product. (outdoor units) There is risk of personal injury and failure of product.

n Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

n Do not insert hands or other object through air inlet or outlet while the product is operated. There are sharp and moving parts that could cause personal injury.

n Do not drink the water drained from the product. It is not sanitary could cause serious health issues.

n Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.

n 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. There is risk of fire or explosion.

n Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. They may burn of explode.

n 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. The chemical in batteries could cause burns or other health hazards.

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Service manual

3

2. Function

Indoor unit

Operation ON/OFF by remote controller

Room temperature sensor. Pipe temperature sensor.

Sensing by room temperature

Maintain the room temperature in accordance with the setting temperature.

Room temperature control

Prevent the water being freezed on evaporator by sensing the evaporator pipe temperature in cooling mode

Anti-freezing control in cooling

Restarting is for approx. 3 minutes..

Time Delay Safety control

Turbo wind, high, med, low, breeze.

Indoor fan speed control

The unit will decide the louver direction according to operation mode.

Two-direction air vane

The fan is turn to low speed (cooling/heating). The unit will be turn off at the seventh hour.

Sleep mode auto control

The function is usually used in rainy days in springtime or damp areas.

Independent dehumidification

The louver can be set at the desired position or swing up and down automatically

Air flow Direction control

The mode can be change by the room temperature.

Auto mode

DSP High-speed Chip

Flexible wiring connection

Auto defrost

Temp. Compensation

Prevent the cold wind at the beginning of unit start.

Anti-cold function

Self-diag. function

Auto-restart function

When the power supply is interrupted and then restore, the air conditioners automatically restore the previous function setting.

Tele Remote control (Optional)

Driving heating at -15℃

High efficiency (30%)

Work voltage (160v-253v)

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The unit has 3 mins delay between continuously ON/OFF operations.

Outdoor unit

Power relay control

The hydrophilic fin can improve the heating efficiency at operation mode.

Hydrophilic aluminum fin

It is only operated in the heating operation mode except defrosting operation.

Anti-rust cabinet

Valve protection cover

4 way valve control

Made from electrolytic zinc steel sheet and anti-rust coated components.

It protects the valves and prevents water from dripping.

Low noise air flow system Bird tail propeller fan makes the outdoor unit run more quietly.

Discharge pipe temperature protect

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Service manual

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3. Dimension 3.1 Indoor unit(Alfa)

Outdoor unit(Alfa)

Dimension Mode

W H D

18K 920 293 224

Dimension Mode

W H D L1 L2 L3

18K 845 695 335 560 360 735

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3.2 Indoor unit(Corona)

Outdoor unit(Corona)

Dimension Mode

W H D

18K 920 292 225

Dimension Mode

W H D L1 L2 L3

18K 845 695 335 560 360 735

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3.3 Indoor unit(Inverter Eco)

DimensionMode W H L

7K 750 250 1889K 750 250 18812K 750 250 188

Outdoor unit(Inverter Eco)

Dimension Mode

W H D L1 L2 L3

7K 780 540 250 530 315 590 9K 780 540 250 530 315 590 12K 780 540 250 530 315 590

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3.4 Indoor unit(Inverter Elite)

Outdoor unit(Inverter Elite)

Dimension Mode

W H D

7K 710 250 190

9K 710 250 190

12K 790 265 195

Dimension Mode

W H D L1 L2 L3

7K 780 540 250 530 315 590 9K 780 540 250 530 315 590 12K 780 540 250 530 315 590

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3.5 Indoor unit(Inverter Star)

Outdoor unit(Inverter Star)

Dimension Mode

W H D

9K 750 250 205

12K 815 280 215

21K 1080 330 222

24K 815 280 215

Dimension Mode

W H D L1 L2 L3

9K 780 540 250 530 315 590 12K 780 540 250 530 315 590 21K 845 695 335 560 360 735 24K 845 695 335 560 360 735

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4. Specification

Ac Alfa,Ac Corona, Inverter Elite Model MSH-18HRIN1 MSC-18HRIN1 MSE-09HRIN2 MSE-12HRIN2

Power supply Ph-V-Hz 1, 220-240V~, 50Hz 1, 220-240V~,50Hz 1, 220-240V~, 50Hz 1, 220-240V~, 50Hz

Capacity Btu/h 18000 18000 9000 12000

Input W 1670 1720 1100 1400

Rated current A 9.0 7.5 5.1 6.4 Cooling

EER Btu/w.h 10.8 10.5, 8.2 8.6

Capacity Btu/h 20000 19000 12000 15000

Input W 1830 1790 1400 1700

Rated current A 9.9 7.7 6.3 7.5 Heating

COP W/W 3.2 3.11 8.6 8.8

Max. current A 15.5 18 12 18

Starting current A 9.0 9.0

Model BA160X2CS-20KU BA160X2CS-20KU BG130X1C-20FZ BG130X1C-20FZ

Type Rotary Rotary Rotary Inverter Rotary Inverter

Brand TOSHIBA TOSHIBA TOSHIBA TOSHIBA

Capacity Btu/h 16140 16140 9468 9468

Input W 1630 1630 890 890

Rated current(RLA) A 10.95 10.95 5.7 5.7

Locked rotor Amp(LRA) A 55 55

Thermal protector CS-74 CS-74 CS-74 CS-74

Capacitor uF No No No No

Compressor

Refrigerant oil ml 750 750 370 370

Model RPG28C RPG28C RPG13H RPG13D

Brand Welling Welling Welling Welling

Input W 45 55 39.5 44

Capacitor uF 1.5 1.5 1.2 1.5

Indoor \fan motor

Speed(hi/mi/lo) r/min 1200/1150/1000 1140/1060/980 1250/1100/850 1180/1000/850

Indoor air flow (Hi/Mi/Lo) m3/h 800/700/600 800/700/600 520/460/410 580/500/420

Indoor noise level (Hi/Mi/Lo) dB(A) 44/40/37 44/40/37 40/38/35 40/38/35

Model YDK53-6K YDK53-6C YDK24-6F YDK25-6-3

Brand Welling Welling Welling Welling

Input W 130 125 56 75

Capacitor uF 3.0 3.0 2.5 2.0

Outdoor fan motor

Speed r/min 750 800 800 900

Outdoor air flow m3/h 2500 2500 1600 1700

Outdoor noise level dB(A) 58 58 58 58

Refrigerant type R410A g 1650 1770 840 1200

Liquid side/ Gas side mm Ф6.35/Ф12.7 Ф6.35/Ф12.7 Ф6.35/Ф9.53 Ф6.35/Ф12.7

Max. pipe length m 10 15 10 10 Refrigerant piping

Max. in level m 5 8 5 5

Operation temp ℃ 17-30 17-30 17-30 17-30

Ambient temp ℃ -15-43 -15-43 -15-50 -15-50

Application area m2 28-45 28-45

Note:

The noise date is base on hemi-anechoic chamber, during actual operation; these values are normally somewhat different

as a result of ambient condition.

The above design and specifications are subject to change without prior notice for product improvement.

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Model MSG-07HRIN2 MSG-09HRIN2 MSG-12HRIN2

Power source 220-240V~ 50Hz 220-240V~ 50Hz 220-240V~ 50Hz

Capacity BTU/H 7000(2700~9000) 9000(2730~10600) 12000(3070~13300)

Input W 780(305~990) 990(305~1180) 1340(334~1494)

Running current A 4.8(1.35~6.2) 4.5(1.2~6.6) 5.8(1.60~7.60) Cooling

EER BTU/W.H,W/W 9.0, 2.62 9.0, 2.62 9.0, 2.61

Capacity BTU/H 9000(2700~11000) 12000(2730~14000) 15000(3070~17060)

Input W 940(280~1140) 1240(283~1450) 1560(320~1773)

Running current A 4.4(1.35~6.7) 5.5(1.45~9.3) 6.8(1.6~10.6) Heating

COP W/W 2.81 2.82 2.82

Moisture removal L/h 1.0 1.0 1.2

Max. input consumption W 2300 2300 2600

Model BG130X1C-20FZ BG130X1C-20FZ BG130X1C-20FZ

Type Rotary Inverter Rotary Inverter Rotary Inverter

Brand TOSHIBA TOSHIBA TOSHIBA

Refrigerant oil ml 370 370 370

Refrigerant oil type POE POE POE

Compressor

Capacitor uF \ \ \

Refrigerant R407C g 800 800 1200

Input W RPG13H RPG13H RPG13C

Brand Welling Welling Welling

Capacitor uF 1.2uF/≥450VAC 1.2uF/≥450VAC 1.5uF/≥450VAC

Speed level 3 3 3

Indoor fan motor

Hi/Mid/Lo speed ( rpm) 1050/950/750 1100/1000/800 1060/900/800

Air flow(indoor) Hi/Mid/Lo m3/h 500/410/320 520/430/330 560/460/380

Noise level (indoor) Hi/Mid/Lo dB(A) 35/32/26 36/32/26 36/32/26

Input W YDK25-6-3 YDK25-6-3 YDK25-6-3

Capacitor uF 2.5uF/≥450VAC 2.5uF/≥450VAC 2.5uF/≥450VAC Outdoor fan motor

Brand Welling Welling Welling

Noise lever (outdoor) dB(A) 51 51 53

dimension (W*H*D) 750*250*188 750*250*188 815*280*195

Packing (W*H*D) 830*336*280 830*336*280 915*360*275 Indoor unit

Net/Gross weight kg 8.5/11 8.5/11 11/14

dimension (W*H*D) 780*540*250 780*540*250 780*540*250

Packing (W*H*D) 910*575*335 910*575*335 910*575*335 Outdoor unit

Net/Gross weight kg 37/40 37/40 40/43

Liquid side mm φ6.35 φ6.35 φ6.35

Gas side mm φ9.53 φ9.53 φ12.7

Max. refrigerant pipe length 10 10 10 Refrigerant piping

Max. difference in level 5 5 5

Operation temp 17℃~30℃ 17℃~30℃ 17℃~30℃

Ambient temp -15℃~45℃ -15℃~45℃ -15℃~45℃

Application area M2 14-18 18-24 20-30

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5. Refrigerant cycle diagram

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6. Operation limits 6.1 Cooling operation

Outdoor unit air temp.℃ DB

Indoor air temp. ℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage.

6.2 Heating operation Indoor air temp. ℃ DB

Outdoor unit air temp.℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage.

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7. Schematic diagram and Wiring diagram 7.1. Schematic diagram

7.1.1 Display board(MSH-18HRIN1,MSC-18HRIN1)

1 2 3 4 5 6

A

B

C

D

654321

D

C

B

A

Scale Sheet

Size FCSM No. DWG No. Rev

0 of 0

B

LED2

FROM INDOOR PCB

1234567

CN1

+5

LED3LED1

+5

Q19012

TIME YDEF R

AUTO G

R1 102

R11

391

R12

391

R13

391

R14

391

R15

221

104C1

C3

104

Q29013

R5102

R6221

R4 221

R2 102

R3 221

R9

221

R8

102

Q49012

Q39012

R16

391

R17

221

C5

104 10u/16V

E4

REC1

R10151

47u/16V

E2

R7

221

CLKDATA

REMOTE+5V

GND

DIGI

8LED

Dsa1

Dsb2

Q03

Q14

Q25

Q36

GND7 CP 8

MR 9

Q4 10

Q5 11

Q6 12

Q7 13

Vcc 14IC1

74HC164

+5

+5

+5

+5 d dp e

fg

dig.2

dig.1

c

ba

C6

102

DISP1

DISP2

7.1..2 Indoor main PCB(MSH-18HRIN1,MSC-18HRIN1)

1 2 3 4 5 6 7 8

A

B

C

D

87654321

D

C

B

A

IC6 PC817

3

4

DZ124V

C13

473

IC10 PC851

N L 12

CN10

12

CN9

X1

2.5MR101M

RST

C26104

+5V

R13

10K

1

23

IC9 7042

RST

LED_C DATA

TXD

CLK

DIGI_C

BUZZ

ZERO

RXD

REMOTE

SDA

SCL

A0 1

A1 2

A2 3

GND 4SDA5 SCL6 WC7 VCC8IC11 24C04

+5VC19 104

R2910K

R2810K

SDASCL

E1147uF/16VR41

8.06K

C24

223

R42

2K

+5V

1

2

CN14

T1_room

T1_roomE12

47uF/16VR368.06K

C17

223

R27 2K

+5V

1

2

CN11

T2_pipeT2_pipe

E10 100uF/16V

T2_pipe

T1_room

SW_KEY

STEP1

STEP2

STEP3

STEP4

FAN_BACK

INDOORFAN

+5V

E7100uF/16V

C10104

Q39013

R37

12K

C22223

D14 1N4007D13 1N4007

R38

12K R3912K

R40 5.1K+5V

ZERO

B

AC23223

E847uF/16V

C251.2(1.5)uF/450V

T1 T2

G

TR1BT131

L1

C2 333/250VAC

R12K

+5VR3

560

E2470uF/25VR411K/2WDZ2

12VD5

IN4007

R511K/2W

L

N

R2 51/1W

INDOORFAN'

1

2

CN9

N

ZR114D681K

C5333/250VAC

1

2

CN2

TRANS_IN

t PTC182RM

1

2

3

4

5

CN1

FAN_IN

IC1 PC817

FUSE1

3.15A/250V

14.5VAC 350mA

C3

104E1

2200uF/25VD4

D3

D2

D1 Vin1

GN

D2

Vout 3IC2 7812 +12V

E3

1000uF/25V

C4

104

IN4007*4

Vin1

GN

D2

Vout 3IC3 7805 +5V

E4

470uF/16V

C11

104

CHUCHEN

SELECT2

TXD

RXD

R26

2K

R255.1K

R24680

R19100K

R20

11K/2W

R21

11K/2W

R2212K

R235.1K

R185.1K

R172K/2W

C15102

C16

471/250V

C14

102D10

D11

E9

100uF/35V

POWER CIRCUIT

COMMUNICATE CIRCUIT

CORTROL CIRCUIT

R32

10K

+5V

+5V

SELECT3

+5V

Q2 9013

SELECT3

R34

5.1K

D15IN4148

C20103

+5V

123

CN13

FAN_BACK

+12V

FAN_BACK

A

B

1

2

CN10

L

IN4007

1

CN8

S

IN4007

J3

SELECT1P50 1

P51 2

P52 3

P53 4

ANI0 5

ANI1 6

ANI2 7ANI3 8

VSS 9

P10 10

P11 11

P30 12

P31 13

P32 14

P33 15

P20 16P2117

P2218

P2319

P2420

VPP21

RESET22

X223

X124

VDD25

P2526

P2627

P0028

P0129

P0230

P0331

P0432

IC8

uPD789189(32P)

R43

1K

IN4749

1

23

4

2

1

1

2

4

3

C8

104

E5

1000uF/25V ISOGND

D9

D8

D7

D6Vin1

GND

2

Vout 3IC7 7812 ISO+12V

E6

470uF/25V

C9

104

IN4007*4

1234

CN5

TRANS_OUT

R31

10K

+5V

SELECT2

J2

R33

10K

+5V

SELECT1

J1

DISPLAY

C18102

+5VREMOTE

R30 100

R14

10K

R15

10K

R16

10K

+5V

1234567

CN7

DIGI_CDATA

CLKLED_C

123

CN4

IN11

IN22

IN33

IN44

IN55

IN66

IN77

VSS8 VDD 9

OUT7 10

OUT6 11

OUT5 12OUT4 13OUT3 14

OUT2 15

OUT1 16IC4

IC/ULN2003C7

104

+12V

12345

CN8STEP1

STEP2

STEP3

STEP4

BUZZ

INDOORFAN

B1R81K

+12V

IC5 PC817R71K

R6

2K

Q19013

R9

5.1K

ISO+12V ISOGND

CHUCHEN

INDOORFAN'

12 CN12

ISO+12V

12 CN6

SW1 C21104

R3510K

+5V

SW_KEY

1

2

4

1

14.5VAC 200mA C1

472

1P-1

GND

R11100K

C12104

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15

7.1.3 Outdoor main PCB(MSH-18HRIN1,MSC-18HRIN1)

1 2 3 4 5 6

A

B

C

D

654321

D

C

B

A

123456789

1011121314151617

27 28 29 30 3231

33

3534

36373839404142

4445464748495051

52535455565758596064 63 62 61

43TMS320F242 (64QFP)

IOPC

7IO

PC6

IOPC0

CAP3/IOA5CAP2/QEP1/IOPA4CAP1/QEP0/IOPA3

VDDVSS

VDDVSS

VSSAVDDAADCIN07VREFHIVREFLOADCIN06ADCIN05

ADCIN04

AD

CIN

03A

DC

IN02

AD

CIN

01A

DC

IN00

/RES

ETTC

KTD

ITD

OTM

S/T

RSTVss

VDD

IOPC5IOPC4IOPC3IOPC2SCIRX/IOPA1SCITX/IOPA0

XTAL2XTAL1VDDVSS

VSSVD

D0

PWM

1/PA

6PW

M2/

PA7

PWM

3/PB

0

PWM

4/PB

1PW

M5/

PB2

PTM

PD0

Vcc

p

TP2

TP1

Vdd Vss

C16C15

XTAL1

12

CN1 R7

R8C7

+5V

R18 L4

C17

+5V

J3(Comm Select)

FAN

TXDRXD

POWER

4-WAY

1 23 45 67 89 1011 1213 1415 16

IC2

+12V

D5

R11

R16

1819

20 21 22 23 24 25 26

Compress Top

R1

R2

R3

R4

R6

R5+5V

+5V

+5V

D2

+5V

C8R12

R14

R15R

13

C9

EVPOUT-TEMP

12

CN2

12

Outdoor Entironment Sensor

Outdoor Pipe Sensor

+5V

+5V

C6R10

R9

+5V

IPM

C1R31

R12

D3 R21

R22 C10C11CT1

4148

R24

EMU1EMU0

VSSVDD

NC

IOPC1

12345678910

CZ2+5

+12

Pro

Pro

+5V

C22 C20

R23123

IC1

C12

+5

C131

23

45

67

89

1011

1213

14

CN10

R36

R25

R35

+5

+5

+5

C14

+5V

R32

R30

LED

LED

R29

C23

C25C4

LED

Current Detect

+5

12CN4 C19

C21

R34 R33

W-W+V-V+U-U+

123456789

1011

CN1

CON11

AC-INAC-INFAN'

4-WAY'GNDTXDRXD+5V+12VPOWER1

AC-IN

FAN'4-WAY'

link to power circuit

7.1.4 Outdoor power PCB(MSH-18HRIN1,MSC-18HRIN1)

1 2 3 4

A

B

C

D

4321

D

C

B

A

FS1

20A/250VAC C1

474/250V

ZMR2

14D681

ZMR1

14D681

C5472

C4472

C2

474/250V

tPTC1

RL3

RL2

RL1

C84C7

103

C81 C85C83 C8

103

AS1

T1

H38-20A-6MH

+12V

C152.5U

+12V

560uF/400V *6

POWER1

AC V+

AC V-

DB1

L2 R1812Filter

C6

50uF/450V

C82 C86

123456789

1011

CN1

CON11

POWER1+12V+5VRXDTXDGND4-WAYL.FANH.FANAC-IN

T3

R265.1K

D1IN4007R28

12K

C21

104

IC6 PC817

IC5 PC851

+5V

TXD

R303.5K/7W

C23471/250V

RXD

1

2 3

4

1

23

4

+12V

POWER1

FS2

3.15

A/2

50V

AC

L1

R8025

L3

R18J04D

4-W

AY

FAN

L

N

P-2

P-5

P-6 IPM

BO

AR

D

P-4

P-3

RL3-4

P-1

+5

AC V+

AC V-

DB2

CN4

FAN.H

CN7

CAP

CN5

COM

CN6

4-WAY

S

Power Circuit

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7.1..5 Indoor main PCB(Inverter Eco)

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7.1.6 Outdoor main PCB(Inverter Eco/Elite)

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7.2. Wiring diagram

7.2.1 MSH-18HRDN1

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7.2.2 MSC-18HRIN1

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7.2.3 MSE-09HRIN2, MSE-12HRIN2

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7.2.4 MSG-07HRIN2, MSG-09HRIN2, MSG-12HRIN2 1 Indoor unit 7/9K

2 Indoor unit 12K

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3. Outdoor unit

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8. Installation details 8.1 Wrench torque sheet for installation

Outside diameter Torque mm inch Kg.m φ6.35 1/4 1.8 φ9.52 3/8 4.2 φ12.7 1/2 5.5 φ15.88 5/8 6.6 φ19.05 3/4 6.6

8.2 Connecting the cables

The power cord of connect should be selected according to the following specifications sheet. Grade

Unit 7K 9K 12K 16K 18K

mm2 1.0 1.0 1.5 2.5 2.5

8.3 Pipe length and the elevation Pipe size Capacity

Btu/h GAS LIQUID

Standard length (m)

Max. Elevation B (m)

Max. Elevation B (m)

Additional refrigerant (g/m)

3/8’’ (φ9.52) 1/4’’ (φ6.35) 5 5 10 30 7k~12K

1/2’’ (φ12.7) 1/4’’ (φ6.35) 5 5 10 30

1/2’’ (φ12.7) 1/4’’ (φ6.35) 5 8 15 30

5/8’’ (φ15.88) 1/4’’ (φ6.35) 5 10 20 30 18K~28K

5/8’’ (φ15.88) 3/8’’ (φ9.52) 5 10 20 65

Caution: Capacity is base on standard length and maximum allowance length is base of reliability. Oil trap should be install per 5-7 meters.

In case that more than 5m.

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8.4 Air purging of the piping and indoor unit

Required tools: Hexagonal wrench; adjustable wrench; torque wrenches, wrench to hold the joints and gas leak detector. Note: The air in the indoor unit and in the piping must be purged. If air remains in the refrigeration piping, it will affect the compressor, reduce the cooling capacity, and could lead to a malfunction of unit. Be sure, using a torque wrench to tighten the service port cap (after using the service port), so that it prevents the gas leakage from the refrigeration cycle.

Procedure

1. Recheck the piping connections. 2. Open the valve stem of the 2-way valve

counterclockwise approximately 90’, wait 10 seconds, and then set it to closed position. § Be sure to use a hexagonal wrench to operate

the valve stem 3. Check for gas leakage. § Check the flare connection for gas leakage 4. Purge the air from the system. § Set the 2-way valve to the open position and

remove the cap from the 3-way valve’s service port. § Using the hexagonal wrench to press the

valve core pin, discharge for three seconds and then wait for one minute.

5. Use torque wrench to tighten the service port cap to a torque of 1.8 kg.m. (18n.m)

6. Set the 3-way valve to the opened position.

7. Mounted the valve stem nuts to the 2-way and 3-way valves.

8. Check for gas leakage. § At this time, especially check for gas leakage

from the 2-way and 3-way stem nuts, and from the service port.

Caution: If gas leakage is discovered in step (3) above, take the following measures. If the leaks stop when the piping connections are tightened further, continue working from step (4). If the gas leaks do not stop when the connections are retightened, repair the location of the leak, discharge all of the gas through the service port, and then recharge with the specified amount of gas from a gas cylinder.

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8.5 Pumping down (Re-installation)

Procedure

1. Confirm that both the 2-way and 3-way valves are set to the opened position. § Remove the valve stem caps and confirm that the valve stems are in the opened position. § Be sure to use a hexagonal wrench to operate the valve stems. 2. Operate the unit for 10 to 15 minutes. 3. Stop operation and wait for 3 minutes, then connect the charge set to the service port of the

3-way valve. § Connect the charge hose with the push pin to the gas service port. 4. Air purging of the charge hose. § Open the low-pressure valve on the charge set slightly to purge air from the charge hose. 5. Set the 2-way valve to the close position. 6. Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa. 7. Immediately set the 3-way valve to the closed position. § Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. 8. Disconnect the charge set, and amount the 2-way and 3-way valve’s stem nuts and service

port caps. § Use a torque wrench to tighten the service port cap to a torque of 1.8 kg.m. § Be sure to check for gas leakage.

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8.6 Re-air purging (Re-installation)

Procedure:

1. Confirm that both the 2-way and 3-way valves are set to the closed position. 2. Connect the charge set and a charging cylinder to the service port of the 3-way valve. § Leave the valve on the charging cylinder closed. 3. Air purging. § Open the valves on the charging cylinder and the charge set. Purge the air by loosening the flare nut

on the 2-way valve approximately 45’ for 3 seconds then closing it for 1 minutes; repeat 3 times. § After purging the air, use a torque wrench to tighten the flare nut to on the 2-way valve. 4. Check the gas leakage. § Check the flare connections for gas leakage. 5. Discharge the refrigerant. § Close the valve on the charging cylinder and discharge the refrigerant until the gauge indicate 0.3 to

0.5 Mpa. 6. Disconnect the charge set and the charging cylinder, and set the 2-way and 3-way valves to

the open position. § Be sure to use a hexagonal wrench to operate the valve stems. 7. Mount the valve stems nuts and the service port cap. § Be sure to use a torque wrench to tighten the service port cap to a torque 18N.m. § Be sure to check the gas leakage.

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8.7 Balance refrigerant of the 2-way, 3-way valves

Procedure:

1. Confirm that both the 2-way and 3-way valves are set to the open position. 2. Connect the charge set to the 3-way valve’s service port. § Leave the valve on the charge set closed. § Connect the charge hose with the push pin to the service port. 3. Open the valves (Low side) on the charge set and discharge the refrigerant until the gauge

indicates 0.05 to 0.1 Mpa. § If there is no air in the refrigeration cycle [the pressure when the air conditioner is not running is

higher than 0.1Mpa, discharge the refrigerant until the gauge indicates 0.05 to 0.1 Mpa. If this is the case, it will not be necessary to apply a evacuation. § Discharge the refrigeration gradually; if it is discharged too suddenly, the refrigeration oil sill be

discharged.

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8.8 Evacuation

Procedure:

1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. § Confirm that the gauge needle has moved toward -0.1 Mpa (-76 cmHg) [vacuum of 4 mmHg or less]. 3. Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the

gauge needle does not move (approximately 5 minutes after turning off the vacuum pump). 4. Disconnect the charge hose from the vacuum pump. § Vacuum pump oil, if the vacuum pump oil becomes dirty or depleted, replenish as needle.

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8.9 Gas charging

Procedure:

1. Connect the charge hose to the charging cylinder. § Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom

of the cylinder. 2. Purge the air from the charge hose. § Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the

air (be careful of the liquid refrigerant). 3. Open the valves (Low side) on the charge set and charge the system with liquid refrigerant. § If the system cannot be charge with the specified amount of refrigerant, if can be charged with a little

at a time (approximately 150g each time0 while operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approximately 1 minute and then repeat the procedure.(pumping down-pin).

4. Immediately disconnect the charge hose from the 3-way valve’s service port. § Stopping partway will allow the refrigerant to be discharged. § If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the

air conditioner before disconnecting the hose. 5. Mounted the valve stem caps and the service port § Use torque wrench to tighten the service port cap to a torque of 18N.m. § Be sure to check for gas leakage.

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§ 9. Pressure table

Note: The pressure data is from 3 way valve, the pressure data are pressure above atmosphere. D: Dry bulb temp. W: Wet bulb temp.

9.1 MSH-18HRIN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D15ºC W Pressure( kg/cm2 ) 6.6 6.8 7.0 7.3 7.6 8.0

24ºC D17ºC W Pressure( kg/cm2 ) 6.8 7.0 7.1 7.7 8.3 8.7

27ºC D19ºC W Pressure( kg/cm2 ) 7.1 7.2 7.3 7.8 8.6 9.3

32ºC D23ºC W Pressure( kg/cm2 ) 7.1 7.4 7.6 8.4 9.4 9.8

Heating mode Outdoor temperature (Dry bulb temp)

Indoor Conditions Pressure 12ºC D 11ºC W

7ºC D 6ºC W

0ºC D -1ºC W

-4ºC D -6ºC W

-7ºC D -9ºC W

-15ºC D -xºC W

15ºC Pressure( kg/cm2 ) 32.5 34.5 34.0 31.0 28.5 27.5

18ºC Pressure( kg/cm2 ) 35.0 34.5 35.5 32.5 29.5 28.0

20ºC Pressure( kg/cm2 ) 36.5 35.5 36.0 33.5 30.0 28.5

22ºC Pressure( kg/cm2 ) 36.5 37.0 36.5 35.0 32.5 29.5

9.2 MSC-18HRIN1

Cooling mode Outdoor temperature (Dry bulb temp)

Indoor Conditions Pressure 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D15ºC W Pressure( kg/cm2 ) 6.6 6.8 7.0 7.3 7.6 8.0

24ºC D17ºC W Pressure( kg/cm2 ) 6.8 7.0 7.1 7.7 8.3 8.7

27ºC D19ºC W Pressure( kg/cm2 ) 7.1 7.2 7.3 7.8 8.6 9.3

32ºC D23ºC W Pressure( kg/cm2 ) 7.1 7.4 7.6 8.4 9.4 9.8

Heating mode Outdoor temperature (Dry bulb temp)

Indoor Conditions Pressure 12ºC D 11ºC W

7ºC D 6ºC W

0ºC D -1ºC W

-4ºC D -6ºC W

-7ºC D -9ºC W

-15ºC D -xºC W

15ºC Pressure( kg/cm2 ) 32.5 34.5 34.0 31.0 28.5 27.5

18ºC Pressure( kg/cm2 ) 35.0 34.5 35.5 32.5 29.5 28.0

20ºC Pressure( kg/cm2 ) 36.5 35.5 36.0 33.5 30.0 28.5

22ºC Pressure( kg/cm2 ) 36.5 37.0 36.5 35.0 32.5 29.5

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10. Capacity table

10.1 MSH-18HRIN1 COOLING OUTDOOR TEMPERATURE DRY

Indoor Conditions

21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 3.513 3.903 4.550 4.849 4.177 3.251 2.333

Sensitive capacity kW 2.635 2.927 3.413 3.738 3.133 2.438 1.749 21ºC D 15ºC W

Input kW. 0.696 1.050 1.607 2.163 1.976 1.810 1.654 Total capacity kW 4.071 4.30 4.938 5.268 4.08 3.625 2.667

Sensitive capacity kW 3.052 3.322 3.703 4.051 3.381 2.719 2.000 24ºC D 17ºC W

Input kW. 0.731 1.183 1.621 2.106 2.012 1.851 1.680 Total capacity kW 4.362 4.921 5.205 5.287 5.024 4.213 3.271

Sensitive capacity kW 3.287 3.690 3.958 4.110 3.768 3.160 2.461 27ºC D 19ºC W

Input kW. 0.721 1.196 1.647 1.700 2.077 1.902 1.700 Total capacity kW 4.931 5.409 6.092 6.319 5.613 4.782 3.500

Sensitive capacity kW 3.698 4.056 4.569 4.839 4.207 3.586 2.625 32ºC D 23ºC W

Input kW. 0.704 1.206 1.755 2.213 2.118 1.962 1.720

HEATING OUTDOOR CONDITIONS

Indoor Conditions

24ºC D 18ºC W

12ºC D 11ºC W

7ºC D 6ºC W

4ºC D 3ºC W

0ºC D -1ºC W

-5ºC D -6ºC W

-7ºC D -8ºC W

-15ºC D -16ºC W

Capacity kW 7.355 7.108 6.663 6.208 5.265 4.621 4.428 3.482 15ºC

Input kW. 1.691 1.883 1.850 2.271 2.406 2.283 2.135 2.026 Capacity kW 7.310 7.021 6.582 6.133 5.255 4.689 4.507 3.638

18ºC Input kW. 1.780 1.947 1.875 2.571 2.730 2.81 2.378 2.180

Capacity kW 7.280 6.897 5.987 5.802 5.394 4.740 4.563 3.744 20ºC

Input kW. 1.860 2.073 1.898 2.650 3.082 2.810 2.550 2.313 Capacity kW 7.241 6.821 5.947 5.750 5.400 4.768 4.592 3.738

22ºC Input kW. 1.993 2.231 2.173 2.700 2.980 2.693 2.487 2.308

Capacity kW 7.103 6.667 5.969 5.883 5.418 4.807 4.671 3.714 27ºC

Input kW. 2.106 2.312 2.422 2.691 2.892 2.611 2.458 2.306

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10.2 MSC-18HRIN1 COOLING OUTDOOR TEMPERATURE DRY

Indoor Conditions

21ºC 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

Total capacity kW 3.513 3.903 4.550 4.849 4.177 3.251 2.333

Sensitive capacity kW 2.635 2.927 3.413 3.738 3.133 2.438 1.749 21ºC D 15ºC W

Input kW. 0.696 1.050 1.607 2.163 1.976 1.810 1.654 Total capacity kW 4.071 4.30 4.938 5.268 4.08 3.625 2.667

Sensitive capacity kW 3.052 3.322 3.703 4.051 3.381 2.719 2.000 24ºC D 17ºC W

Input kW. 0.731 1.183 1.621 2.106 2.012 1.851 1.680 Total capacity kW 4.362 4.921 5.205 5.287 5.024 4.213 3.271

Sensitive capacity kW 3.287 3.690 3.958 4.110 3.768 3.160 2.461 27ºC D 19ºC W

Input kW. 0.721 1.196 1.647 1.700 2.077 1.902 1.700 Total capacity kW 4.931 5.409 6.092 6.319 5.613 4.782 3.500

Sensitive capacity kW 3.698 4.056 4.569 4.839 4.207 3.586 2.625 32ºC D 23ºC W

Input kW. 0.704 1.206 1.755 2.213 2.118 1.962 1.720

HEATING OUTDOOR CONDITIONS

Indoor Conditions

24ºC D 18ºC W

12ºC D 11ºC W

7ºC D 6ºC W

4ºC D 3ºC W

0ºC D -1ºC W

-5ºC D -6ºC W

-7ºC D -8ºC W

-15ºC D -16ºC W

Capacity kW 7.355 7.108 6.663 6.208 5.265 4.621 4.428 3.482 15ºC

Input kW. 1.691 1.883 1.850 2.271 2.406 2.283 2.135 2.026 Capacity kW 7.310 7.021 6.582 6.133 5.255 4.689 4.507 3.638

18ºC Input kW. 1.780 1.947 1.875 2.571 2.730 2.81 2.378 2.180

Capacity kW 7.280 6.897 5.987 5.802 5.394 4.740 4.563 3.744 20ºC

Input kW. 1.860 2.073 1.898 2.650 3.082 2.810 2.550 2.313 Capacity kW 7.241 6.821 5.947 5.750 5.400 4.768 4.592 3.738

22ºC Input kW. 1.993 2.231 2.173 2.700 2.980 2.693 2.487 2.308

Capacity kW 7.103 6.667 5.969 5.883 5.418 4.807 4.671 3.714 27ºC

Input kW. 2.106 2.312 2.422 2.691 2.892 2.611 2.458 2.306

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10.3 MSG-09HRI

SUMMER Cooling modeIndoor

Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D Total capacity kW 2.50 2.35 2.17 2.00 1.87 1.7315ºC W Sensitive capacity kW 1.82 1.75 1.64 1.52 1.43 1.34

Input kW. 0.86 0.90 0.94 1.02 1.13 1.1724ºC D Total capacity kW 2.71 2.58 2.42 2.28 2.13 1.9617ºC W Sensitive capacity kW 1.99 1.93 1.84 1.75 1.64 1.52

Input kW. 0.88 0.93 0.97 1.05 1.16 1.2027ºC D Total capacity kW 2.88 2.75 2.60 2.46 2.29 2.1119ºC W Sensitive capacity kW 2.19 2.12 2.03 1.93 1.80 1.67

Input kW. 0.91 0.96 1.00 1.08 1.20 1.2432ºC D Total capacity kW 3.21 3.08 2.98 2.77 2.53 2.3823ºC W Sensitive capacity kW 2.47 2.40 2.34 2.19 2.02 1.93

Input kW. 0.95 1.00 1.04 1.12 1.25 1.29

OUTDOOR TEMPERATURE DRY

WINTER-7ºC D-8ºC W

Capacity kW 3.46 3.03 2.78 2.44 2.10 1.84Input kW. 1.05 0.96 0.89 0.82 0.72 0.65

Capacity kW 3.39 2.98 2.71 2.35 1.99 1.73Input kW. 1.08 0.97 0.90 0.84 0.74 0.66

Capacity kW 3.36 2.93 2.68 2.29 1.89 1.56Input kW. 1.11 0.98 0.93 0.86 0.76 0.70

Capacity kW 3.33 2.90 2.64 2.26 1.85 1.54Input kW. 1.15 0.99 0.95 0.90 0.81 0.72

OUTDOOR CONDITIONSIndoor

Conditions12ºC D11ºC W

7ºC D6ºC W

4ºC D3ºC W

0ºC D-1ºC W

-4ºC D-6ºC W

15ºC

18ºC

20ºC

22ºC

10.4 MSG-12HRI

SUMMER Cooling modeIndoor

Conditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D Total capacity kW 3.36 3.16 2.93 2.69 2.52 2.3315ºC W Sensitive capacity kW 2.46 2.36 2.21 2.05 1.92 1.80

Input kW. 1.05 1.11 1.16 1.25 1.39 1.4324ºC D Total capacity kW 3.64 3.48 3.25 3.07 2.86 2.6417ºC W Sensitive capacity kW 2.68 2.59 2.47 2.35 2.21 2.05

Input kW. 1.09 1.15 1.19 1.29 1.43 1.4827ºC D Total capacity kW 3.88 3.71 3.50 3.31 3.08 2.8419ºC W Sensitive capacity kW 2.95 2.85 2.73 2.60 2.43 2.25

Input kW. 1.12 1.18 1.23 1.33 1.48 1.5332ºC D Total capacity kW 4.32 4.14 4.01 3.73 3.41 3.2123ºC W Sensitive capacity kW 3.33 3.23 3.15 2.94 2.73 2.60

Input kW. 1.16 1.23 1.28 1.38 1.54 1.59

OUTDOOR TEMPERATURE DRY

WINTER

-7ºC D-8ºC W

Capacity kW 4.50 3.94 3.61 3.17 2.73 2.40Input kW. 1.38 1.26 1.17 1.08 0.94 0.86

Capacity kW 4.41 3.87 3.52 3.06 2.59 2.25Input kW. 1.42 1.28 1.19 1.11 0.97 0.87

Capacity kW 4.37 3.81 3.48 2.98 2.45 2.03Input kW. 1.46 1.29 1.23 1.14 1.00 0.92

Capacity kW 4.33 3.77 3.43 2.94 2.41 2.00Input kW. 1.51 1.30 1.24 1.18 1.06 0.95

15ºC

18ºC

20ºC

22ºC

OUTDOOR CONDITIONSIndoor

Conditions12ºC D11ºC W

7ºC D6ºC W

4ºC D3ºC W

0ºC D-1ºC W

-4ºC D-6ºC W

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10.5 MSG-21HRI SUMMER Cooling mode

IndoorConditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D Total capacity kW 5.92 5.56 5.15 4.74 4.43 4.1115ºC W Sensitive capacity kW 4.32 4.15 3.89 3.60 3.38 3.16

Input kW. 1.97 2.08 2.16 2.33 2.59 2.6824ºC D Total capacity kW 6.41 6.12 5.72 5.41 5.04 4.6517ºC W Sensitive capacity kW 4.71 4.56 4.35 4.14 3.88 3.60

Input kW. 2.03 2.14 2.23 2.41 2.68 2.7727ºC D Total capacity kW 6.83 6.52 6.16 5.82 5.43 5.0019ºC W Sensitive capacity kW 5.19 5.02 4.80 4.57 4.28 3.95

Input kW. 2.09 2.21 2.30 2.48 2.76 2.8532ºC D Total capacity kW 7.60 7.29 7.05 6.56 6.00 5.6523ºC W Sensitive capacity kW 5.85 5.69 5.54 5.18 4.80 4.58

Input kW. 2.18 2.30 2.39 2.58 2.87 2.97

OUTDOOR TEMPERATURE DRY

WINTER

-7ºC D-8ºC W

Capacity kW 8.12 7.12 6.52 5.73 4.93 4.33Input kW. 2.58 2.34 2.18 2.01 1.76 1.59

Capacity kW 7.97 6.99 6.36 5.52 4.68 4.05Input kW. 2.64 2.38 2.21 2.07 1.81 1.62

Capacity kW 7.90 6.88 6.29 5.39 4.43 3.67Input kW. 2.72 2.40 2.28 2.11 1.86 1.70

Capacity kW 7.82 6.80 6.19 5.31 4.35 3.61Input kW. 2.81 2.42 2.31 2.19 1.98 1.77

OUTDOOR CONDITIONSIndoor

Conditions12ºC D11ºC W

7ºC D6ºC W

4ºC D3ºC W

0ºC D-1ºC W

-4ºC D-6ºC W

15ºC

18ºC

20ºC

22ºC

10.6 MSG-24HRI SUMMER Cooling mode

IndoorConditions 25ºC 30ºC 35ºC 40ºC 45ºC 50ºC

21ºC D Total capacity kW 6.76 6.35 5.88 5.41 5.05 4.6915ºC W Sensitive capacity kW 4.93 4.74 4.44 4.11 3.86 3.61

Input kW. 2.35 2.48 2.59 2.79 3.10 3.2124ºC D Total capacity kW 7.31 6.99 6.53 6.17 5.75 5.3017ºC W Sensitive capacity kW 5.38 5.21 4.96 4.72 4.43 4.11

Input kW. 2.43 2.56 2.67 2.88 3.20 3.3127ºC D Total capacity kW 7.79 7.44 7.03 6.64 6.19 5.7119ºC W Sensitive capacity kW 5.92 5.73 5.48 5.22 4.88 4.51

Input kW. 2.50 2.64 2.75 2.97 3.30 3.4132ºC D Total capacity kW 8.68 8.32 8.05 7.49 6.84 6.4523ºC W Sensitive capacity kW 6.68 6.49 6.32 5.91 5.47 5.22

Input kW. 2.60 2.75 2.86 3.09 3.43 3.55

OUTDOOR TEMPERATURE DRY

WINTER

-7ºC D-8ºC W

Capacity kW 9.33 8.19 7.50 6.58 5.67 4.98Input kW. 2.95 2.68 2.50 2.31 2.01 1.83

Capacity kW 9.16 8.04 7.31 6.35 5.38 4.66Input kW. 3.03 2.73 2.53 2.37 2.07 1.85

Capacity kW 9.08 7.91 7.23 6.19 5.09 4.22Input kW. 3.11 2.75 2.61 2.42 2.13 1.95

Capacity kW 9.00 7.82 7.12 6.10 5.01 4.15Input kW. 3.22 2.78 2.65 2.51 2.27 2.03

15ºC

18ºC

20ºC

22ºC

OUTDOOR CONDITIONSIndoor

Conditions12ºC D11ºC W

7ºC D6ºC W

4ºC D3ºC W

0ºC D-1ºC W

-4ºC D-6ºC W

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11. Electronic function

11.1. Display board

1 22 3 4 5 6 11.1.1. AUTO indicator

This indicator illuminates when the air conditioner is in AUTO operation. 11.1.2. TIMER indicator

This indicator illuminates when TIMER is set ON/OFF. 11.1.3. PRE.-DEF. Indicator (For Cooling & Heating models only)

This indicator illuminates when the air conditioner starts defrosting automatically or when the warm air control feature is activated in heating mode.

11.1.4. TEMPERATURE indicator Usually it displays the temperature settings. When change the setting temperature, this indicator begins to flash, and stops 20 seconds later. It displays the room temperature when the air conditioner is in FAN only operation. When the unit stops operation, it returns to original factory settings. Displays the malfunction code or protection code.

11.1.5. OPERATION indicator This indicator flashes after power is on and illuminates when the unit is in operation.

11.1.6. FREQUENCY indicator This indicator appears only when the compressor is in operation and indicates the current operating

frequency. 11.2. Protection

11.2.1. 3 minutes delay at restart for compressor. 11.2.2. Temperature protection of compressor top, compressor stops when the temp. of top of compressor is more than 115℃, compressor runs when the temp. of top of compressor is less than 100℃.

11.2.3. Voltage protection, unit stop when the voltage is more than 260V and less than 175V. 11.2.4. Inverter module Protection, Inverter module Protection itself has a protection function against current, voltage and temperature.

11.2.5. Sensor protection at open circuit and breaking disconnection 11.2.6. Fan Speed is out of control. When Indoor Fan Speed is too high(higher than 2100RPM)or too low(lower than 300RPM), the unit stops and LED displays failure information and can’t return to normal operation automatically.

11.2.7. Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops and LED displays failure information and can’t return to normal operation automatically.

11.3. Fan-only mode

Fan speed is high/mid/low/ Auto 11.4. Cooling mode

11.4.1. The 4-way valve is closed at cooling mode. 11.4.2. The action of the compressor and the outdoor fan:

Condition T=Indoor Temp.

Compressor Outdoor fan

T> Ts+1 On On Room temp. up T<Ts+1 Off Off T> Ts On On Room temp. down T<Ts Off Off

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11.4.3 Auto fan at cooling mode: Condition

T=Indoor Temp.-Setting Temp. Indoor fan speed

T<1.5℃ Low 1.5℃<T<4℃ Mid.

Room temp. up

T>4℃ High T> 3℃ High 1℃<T<3℃ Mid.

Room temp. down

T<1℃ Low 11.4.4 Anti-freezing control to indoor evaporator at cooling mode( T: evaporator temp. )

Evaporator Temp. Compressor

0℃<T< 4℃ Decrease frequency of compressor T< 0℃ Off

11.4.5 Current protection Model Current Compressor

I>18 A Off 14.5A<I<18A Decrease frequency of

compressor

Current up MSH-18HRIN1

I< 12.0A On I>17.5 A Off 14.0A<I<17.5A Decrease frequency of

compressor

Current down MSH-18HRIN1

I< 11.5A On 11.4.6 Rated capacity test

Set mode to cooling mode Set temp. to 17°C Set fan speed to high speed Push turbo button 5 times in 10 seconds. Using special remoter controller After 5 hours, cancel rated capacity test Turbo function Increasing frequency of compressor After operating 30 minutes, return automatically to the mode and temp. previously selected.

11.5. Dehumidifying mode 11.5.1 The 4-way valve is off 11.5.2 the indoor fan is fixed in breeze speed 11.5.3 Compressor run in low frequency 11.5.4 Low room temperature protection: 11.5.5 When room temperature decreases to below 10℃, compressor and outdoor fan will stop (indoor fan is Breeze). Dehumidifying operation will be resumed when room temperature restores to over 12℃.

11.5.6 At dehumidifying mode, the anti-freezing function of the indoor heat exchanger is the same as that of cooling mode.

11.6. Heating mode 11.6.1. Generally, the 4-way valve is open at heating mode, but it is closed at defrosting. 4-way valve must delay 2 minutes compared with compressor if the compressor changed into non-heating mode or turned off. 4-way valve doesn't delay in dehumidifying mode.

11.6.2. Generally, the outdoor fan is turned off with the on-off action of compressor in heating mode, except for the defrosting mode or the end of defrost.

11.6.3. Action of compressor and outdoor fan motor at heating mode: compressor must run for 7 minutes after starting and then judge temperature. Meanwhile other protections are still valid.

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Condition Compressor Outdoor fan T> Ts+3 Off Off Room temp. up T<Ts+3 On On T< Ts+2 On On Room temp. down T>Ts+2 Off Off

11.6.4. Indoor Fan actions at heating mode Indoor Fan can be set at HIGH/MID/LOW/AUTO by using a remote controller, but Anti-cold wind function prevails. Anti-cold wind control function at heating mode

Condition (T= Indoor exchanger temp.) Indoor fan speed T<34℃ Off 34℃<T<37℃ Breeze 37℃<T<44℃ Low speed

Indoor exchanger temp. up

T>44℃ Setting fan speed T> 38℃ Setting fan speed 33℃<T<38℃ Low sped 24℃<T<33℃ Breeze

Indoor exchanger temp. down

T<24℃ Off When the indoor temp. gets to setting temp, indoor changes to breeze speed immediately, after 127 second, indoor fan stop. 11.6.5. Auto wind at heating mode

Condition (T=Indoor Temp.-Setting Temp.) Indoor fan speed

T<1.5℃ High 1.5℃<T<2.5℃ Med.

Room temp. up

T>2.5℃ Low T<1.0℃ High 1.0℃<T<2.0℃ Med.

Room temp. down

T>2.0℃ Low 11.6.6. Indoor evaporator high-temperature protection at heating mode

Condition (T= Indoor exchanger temp.) Compressor

T<48℃ On 53℃<T<63℃ Decrease frequency of compressor T>63℃ Off

11.6.7. The current protection Model Current Compressor

I>19.0 A Off 15.0.A<I<19.0A Decrease frequency of compressor

Current up 18000btu/h

I< 12.5A On I>18.5 A Off 14.5A<I<18.5A Decrease frequency of compressor

Current down 18000btu/h

I< 12.0A On 11.6.8. The temp. compensation Jump setting in indoor PCB

J2 On On Off Off

J3 On Off On Off

ΔT 0℃ -4℃ -2℃ 0℃

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11.7. Defrosting operation (Available for heating only). 11.7.1 Defrosting condition: 11.7.1.1. When outdoor temp. is more than 0℃,

Defrosting starts when meeting one of the following conditions, a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more

than 40 minutes, and the temperature remains consecutively -4°c for more than 3 minutes, b. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more

than 80 minutes, and the temperature remains consecutively -2°c for more than 3 minutes 11.7.1.2. When outdoor temp. is less than 0℃,

Defrosting starts when meeting one of the following conditions, a. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more

than 40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes, b. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more

than 40 minutes, and the temperature remains consecutively -6°c for more than 3 minutes, c. The temperature of indoor unit pipe decreases 5°c than before

11.7.1.3. The temperature of outdoor heat exchanger remains consecutively lower than 3°c for more than 120 minutes, and the temperature remains consecutively -2°c for more than 3 minutes

11.7.2 Ending condition of defrosting If one of following conditions is satisfied, end the defrost and turn into heating mode: a. The defrost time has reached to 10 minutes. b. When the temperature of outdoor heat exchanger rises up to 8°C and this continues for more than 80 seconds. c. When the temperature of outdoor heat exchanger rises up to 12°C

11.7.3 Defrosting Actions:

11.7.4 Rated capacity test Set mode to cooling mode Set temp. to 30 °C Set fan speed to high speed Push turbo button 5 times in 10 seconds. Using special remoter controller After 5 hours, cancel rated capacity test

11.8. Outdoor low temperature protection (optional) Factory standard unit has not this function. Unit stops when outdoor temp. is low than -15°C and lasting time more than 60 minutes, and unit runs again when outdoor temp. more than -12°C. When indoor PCB J1 jump is on, this function is available. 11.9. Automatic operation mode The air conditioner automatically selects one of the following operation modes: cooling, heating or fan

max. 10 minutes 60s ON 10s 30s Com. OFF ON ON 4 way valve OFF ON ON Outdoor fan OFF ON ON Indoor fan OFF

Breeze 10 seconds, then stop

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only according to the temp. difference between room temp. (TA) and set temp. (TS). TA—TS Operation mode TA—TS>2℃ Cooling -1℃≤TA-TS≤+2℃ Fan-only TA-TS<-1℃ Heating (air-only for cooling only type)

11.10. Manual switch 11.10.1 Mode changes when push this button .

Cooing modeà Auto modeàUnit offà Cooing mode 11.10.2 At Cooing mode, after 30 minutes cooling operation whose fan speed is set as low, the A/C operates with a setting temp. of 24℃.

11.10.3 At auto mode, the A/C operates with a set temp. of 24℃ 11.11. Timer Function

11.11.1 The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes. 11.11.2 Timer on: first turn off the A/C, the A/C will be automatically on at the set time. 11.11.3 Timer off: first turn on the A/C, the A/C will be automatically off at the set time 11.11.4 Timer on/off function( on time is earlier than off time): first turn off the A/C, it will be automatically on at set time, and later be off at the set time, then unit turns on at set time.

11.11.5 Timer off/on function( off time is earlier than on time): first turn on the A/C, it will be automatically off at set time, and later be on at the set time, then unit turns off at set time.

11.12. Sleep mode 11.12.1 It is available at cooling, heating or auto mode. 11.12.2 Cooling:

The set temperature rise 1℃ per hour. Two hours later, the set temperature will maintain as a constant and the fan speed is kept at low speed.

11.12.3 Heating: The set temperature decrease 1℃ per hour. Two hours later, the set temperature will maintain as a constant and the air circulation is kept at low speed (Cold air proof function takes precedence over all).

11.12.4 Auto: The Sleep Mode running function operates in accordance with selected running mode by auto mode.

11.12.5 After 7 hours, unit cancels this modes automatically. 11.13. Auto restart function In case of a sudden power failure, this function automatically sets the unit to previous settings before the power failure when power returns. 11.14. Turbo function The indoor fan will work in super high speed, the frequency of compressor will increase, the max run time is 30 minutes. After 30 minutes, the unit will work in previous setting. 11.15. Plasma Plasma turns on when the indoor fan runs. Plasma turns off automatically when front panel is opened. Plasma is optional function.

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12. Model and Parameters

Model MSH-18HRDN1 MSC-18HRDN1 RACFAN 1180 1140

RAHFAN 1180 1140

RATIFC 59 59

RATIFH 57 57

SLEEPTIMC 7 7

FANCSHIGH 1180 1180

FANHSHIGH 1180 1180

FANCHIGH 1180 1140

FANHHIGH 1180 1140

FANMID 1100 1060

FANLOW 980 980

FANSLOW 900 900

F1 42 42

F2 47 47

F3 52 52

F4 55 55

F5 58 58

F6 64 64

F7 70 70

F8 76 76

F9 82 82

F10 88 88

I1COOL 12 12

I2COOL 14.5 14.5

I3COOL 18 18

I1HEAT 12.5 12.5

I2HEAT 15 15

I3HEAT 19 19

TCDI -6 -6

TCDE1 20 20

TCDE2 12 12

TEL2 26 24

TEH2 53 53

ANGLSTART 190 0

ANGLOFF 115 141

ANGLHEATMAX 13 11

ANGLHEAT 20 34

ANGLHEATMIN 48 51

ANGLSMALL 115 77

ANGLCOOLMAX 186 85

ANGLCOOL 175 68

ANGLCOOLMIN 160 56

PDELAYCOUNT 127 127

V1 F6 F6

V2 F3 F3

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Model MSE-09HRDN1 MSE-12HRDN1

flag0 00 00

MacType 05 05

RatiFC 66 82

RatiFH 76 92

SleepTim 7 7

FanCSHigh 1300 1250

FanHSHigh 1300 1250

FanCHigh 1250 1180

FanHHigh 1250 1180

FanMid 1100 1100

FanLow 880 850

FanSlow 800 750

F1 34 33

F2 38 47

F3 44 57

F4 59 62

F5 63 72

F6 66 82

F7 73 88

F8 76 92

F9 95 103

F10 105 107

I1Cool 7.0 8.5

I2Cool 8.0 10.0

I3Cool 10.5 12

I1Heat 8.5 10.5

I2Heat 10.0 12.0

I3Heat 12.0 13.5

TCDI -9 -9

TCDE1 20 20

RACFAN 1250 1180

RAHFAN 1250 1180

TEL1 24 24

TEH2 53 53

ANGLSTART 200 193

ANGLOFF 110 101

ANGLHEATMAX 18 11

ANGLHEAT 27 17

ANGLHEATMIN 53 51

TEL2 33 33

ANGLCOOLMAX 186 180

ANGLCOOL 183 176

ANGLCOOLMIN 160 155

TCDE2 8 8

PDELAYCOUNT 127 127

TEL5 36 36

TEL6 40 40

PARASUM

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13. Troubleshooting 13.1 Indoor Unit Error Display

Display LED STATUS E0 EEPROM error E1 Indoor / outdoor units communication protection E2 Zero-crossing examination error E3 Fan speed beyond control E5 Open or short circuit of outdoor temperature sensor E6 Room temperature or evaporator temperature sensor open or short circuit of P0 Module protection P1 Over voltage or too low voltage protection P2 Compressor top protection against temperature P3 Outdoor low temp. protection

P4 Inverter compressor drive error

Note: E4: Reserved function 13.1.1

Display LED STATUS

E0 EEPROM parameter error

13.1.2 circuit or software error on indoor cortrol board

Display LED STATUS

E1 Indoor / outdoor units communication protection

Replace the control board of indoor

Circuit or software error on indoor control board

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No 13.1.3

Display LED STATUS E2 Zero-crossing examination error

13.1.4

Display LED STATUS E3 Fan speed beyond control

Is power supply right?

Is connector connection good?

Indoor PCB is defective

Yes

Yes

Does the led on outdoor control board bright?

No

YES

Disconnect the power supply, after 1 minutes, connect the power supply , turn on the

unit using remote controller, does the unit work normally ?

Replace the module board.(The

power supply of PCB is supplied

by the module board.)

Replace the outdoor power

supply board.

Yes

Is the voltage on terminal CZ1 and CZ2 of the outdoor main PCB is 5V?

NO

NO

NO

Is the connection on outdoor control board and

between indoor and outdoor unit good? Does the L、

N connect good? Does the S wire connect reliably?

Replace the indoor control board.

YES

Is the voltage between P and

N on inverter module 380V?

Replace the outdoor main

PCB

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Yes 13.1.5

Display LED STATUS E5 Open or short circuit of outdoor temperature sensor

Yes No 13.1.6

Display LED STATUS E6 Room temperature or evaporator temperature sensor open or short circuit

yes No 13.1.7

Display LED STATUS P0 Module protection

Is connector connection good?

Is voltage being applied to the fan motor?

(rang 90v-160v between mid pin and N on CN1

Indoor fan motor is defective

Repair the connector.

Indoor PCB is defective

No

Yes No

Is connection to connector good?

Replace the sensor Repair connector

Is connection to connector good?

Replace the sensor

Repair connector

If display E5 all the same, replace indoor main PCB.

If display E6 all the same, replace outdoor main PCB.

Replace indoor main PCB. Replace indoor fan motor.

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No Yes Yes No Yes Yes No No No Yes 13.1.8

Display LED STATUS P1 Over voltage or too low voltage protection

13.1.9

Display LED STATUS P2 Compressor top protection against temperature

Off: 115゜C; On: 100゜C

Is connection to connector good?

Is the wires to compressor right?

Check the inverter module, If some component

cracked or damaged?

Is it breakdown between P-N,P-U,P-V;N-W,N-U,N-V

At inverter module

Check compressor Inverter module is defective

Repair connector

Is the power supply right?

Check the outdoor power board

Replace outdoor main PCB.

Yes

Check the voltage between P and N on inverter

module. Is it about 380V?

Test the outdoor power supply board again.

Inverter module damaged, replace it.

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No 13.1.10

Display LED STATUS P3 Outdoor low temp. protection

This is optional, factory standard unit has not this function.

Unit stops when outdoor temp. is low than -15°C and lasting time more than 60 minutes, and unit runs again when outdoor temp. more than -12°C.

Does compressor operate?

Is refrigerant circulation volume normal?

Gas charging

Is abnormality the same after gas charging

Check refrigerant system (such as clogging of

capillary, etc)

Is protector normal?

Check the outdoor main PCB

Replace protector

No

Yes

Yes

No

No

Is the outdoor temp. low than -15°C?

Is the outdoor temp sensor right according to the table in clause 12

Replace the outdoor main board

No

Yes

Is the connection good?

Yes Connect and test again.

No

Replace the outdoor main PCB.

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13.2 Diagnostic chart

After energizing, no indicator is lighted and the air conditioner can’t be operated.

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13.3 Resetting phenomenon often occurs during operation

(That is automatically entering to the status when power is on.) The reason is that the instantaneous voltage of main chip is less than 4.5V. Check according to the following procedure:

Resetting phenomenon often occurs during operation.

After changing indoor PCB, check if the failure realease.

Yes

After changing indoor fan motor, check if the failure realease.

Yes

YES

Yes

Power supply circuit has problems.

Indoor PCB is defective.

13.4 Operation lamp flashes and Timer lamp off

13.5 Operation lamp flashes and Timer lamp on

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13.6 Operation lamp off and Timer lamp flashes

13.7 Operation lamp on and Timer lamp flashes

EEROM error, indoor PCB is defective. 13.8 Operation lamp flashes, Timer lamp flashes

This is alarm signal when the main chip can’t detect over-zero signal. When such failure occurs, the main control board must have fault.

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14 Characteristic of temperature sensor

Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ Temp.℃ Resistance KΩ -10 62.2756 17 14.6181 44 4.3874 -9 58.7079 18 13.918 45 4.2126 -8 56.3694 19 13.2631 46 4.0459 -7 52.2438 20 12.6431 47 3.8867 -6 49.3161 21 12.0561 48 3.7348 -5 46.5725 22 11.5 49 3.5896 -4 44 23 10.9731 50 3.451 -3 41.5878 24 10.4736 51 3.3185 -2 39.8239 25 10 52 3.1918 -1 37.1988 26 9.5507 53 3.0707 0 35.2024 27 9.1245 54 2.959 1 33.3269 28 8.7198 55 2.8442 2 31.5635 29 8.3357 56 2.7382 3 29.9058 30 7.9708 57 2.6368 4 28.3459 31 7.6241 58 2.5397 5 26.8778 32 7.2946 59 2.4468 6 25.4954 33 6.9814 60 2.3577 7 24.1932 34 6.6835 61 2.2725 8 22.5662 35 6.4002 62 2.1907 9 21.8094 36 6.1306 63 2.1124 10 20.7184 37 5.8736 64 2.0373 11 19.6891 38 5.6296 65 1.9653 12 18.7177 39 5.3969 66 1.8963 13 17.8005 40 5.1752 67 1.830 14 16.9341 41 4.9639 68 1.7665 15 16.1156 42 4.7625 69 1.7055 16 15.3418 43 4.5705 70 1.6469

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