Kaysun KAY-26 DN7, KAE-26 DN7, KAY-35 DN7, KAE-35 DN7, KAY-52 DN7 Technical Manual

PRODIGY 3D Inverter

Technical Manual

PRODIGY Technical Manual

CONTENTS

1. Precaution .................................................................................................................................................... 3

1.1 Safety Precaution .......................................................................................................................... 3

1.2 Warning ......................................................................................................................................... 3

2. Function and specifications ....................................................................................................................... 5

3. Dimension .................................................................................................................................................. 10

3.1 Indoor Unit ................................................................................................................................... 10

3.2 Outdoor Unit ................................................................................................................................ 14

4 .Refrigerant Cycle Diagram ....................................................................................................................... 18

5 .Installation Details ..................................................................................................................................... 19

5.1 Wrench torque sheet for installation ........................................................................................... 19

5.2 Connecting the cables ................................................................................................................ 19

5.3 Pipe length and the elevation ..................................................................................................... 20

5.4 Installation for the first time ......................................................................................................... 21

5.5 Adding the refrigerant after running the system for many years ................................................ 23

5.6 Re-installation while the indoor unit need to be repaired ........................................................... 24

5.7 Re-installation while the outdoor unit need to be repaired ......................................................... 25

6. Disassemble Guide.................................................................................................................................... 27

7. Operation Characteristics ......................................................................................................................... 33

8. Electronic function .................................................................................................................................... 34

8.1 Abbreviation ................................................................................................................................ 34

8.2 Display function ........................................................................................................................... 34

8.3 Main Protection ........................................................................................................................... 35

8.4 Operation Modes and Functions ................................................................................................. 36

8.5 Multi-function board instruction (This multi-function board is optional) ...................................... 43

9. Troubleshooting ......................................................................................................................................... 46

9.1 Indoor Unit Error Display ............................................................................................................. 47

9.2 Trouble shooting.......................................................................................................................... 48

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3

1. Precaution

1.1 Safety Precaution

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

1.2 Warning

 Installation  Do not use a defective or underrated circuit

breaker. Use this appliance on a dedicated circuit.

There is risk of fire or electric shock.

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

 Install the panel and the cover of control box securely.

There is risk of fire of electric shock.  Always install a dedicated circuit and breaker. Improper wiring or installation may cause fore or electric shock.  Use the correctly rated breaker of fuse. There is risk of fire or electric shock.  Do not modify or extend the power cable. There is risk of fire or electric shock.

 Do not install, remove, or reinstall the unit by yourself (customer).

There is risk of fire, electric shock, explosion, or injury.

 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.

 For installation, always contact the dealer or an authorized service center.  Do not install the product on a defective

installation stand.

 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.

 Do not let the air conditioner run for a long time

when the humidity is very high and a door or a window is left open.

 Take care to ensure that power cable could not be

pulled out or damaged during operation.

There is risk of fire or electric shock.  Do not place anything on the power cable. There is risk of fire or electric shock.

 Do not plug or unplug the power supply plug

during operation.

There is risk of fire or electric shock.

 Do not touch (operation) the product with wet

hands.

 Do not place a heater or other appliance near the

power cable.

There is risk of fire and electric shock.  Do not allow water to run into electrical parts. It may cause fire, failure of the product, or electric shock.

 Do not store or use flammable gas or combustible

near the product.

There is risk of fire or failure of product.

 Do not use the product in a tightly closed space

for a long time.

Oxygen deficiency could occur.

 When flammable gas leaks, turn off the gas and

open a window for ventilation before turn the product on.

 If strange sounds or smoke comes from product,

turn the breaker off or disconnect the power supply cable.

There is risk of electric shock or fire.

 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.

 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.

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 When the product is soaked, contact an authorized service center.

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

 Ventilate the product from time to time when operating it together with a stove etc.

There is risk of fire or electric shock.

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

There is risk of electric shock.

 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.

 Take care to ensure that nobody could step on or fall onto the outdoor unit.

This could result in personal injury and product damage.

 CAUTION  Always check for gas (refrigerant) leakage after

installation or repair of product.

Low refrigerant levels may cause failure of product.

 Install the drain hose to ensure that water is drained away properly.

A bad connection may cause water leakage.  Keep level even when installing the product. It can avoid vibration of water leakage.

 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.

 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.

It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

 Operational  Do not expose the skin directly to cool air for long

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.

There is risk of damage or loss of property.

 Do not block the inlet or outlet of air flow.  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.

 Do not touch the metal parts of the product when removing the air filter. They are very sharp.  Do not step on or put anything on the product. (outdoor units)  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.

 Do not insert hands or other objects 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.

Be careful and avoid personal injury.

 Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.

There is risk of fire or explosion.

 Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.

They may burn of explode.

 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.

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2. Function and specifications

Model Names of Indoor/Outdoor Units

3D inverter

Capacity

Indoor units

Outdoor units

9k

KAY-26 DN7

KAE-26 DN7

12k

KAY-35 DN7

KAE-35 DN7

18k

KAY-52 DN7

KAE-52 DN7

24k

KAY-71 DN7

KAE-71 DN7

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Specifications

Indoor

KAY-26 DN7

KAY-35 DN7

Outdoor

KAE-26 DN7

KAE-35 DN7

Power supply

Ph-V-Hz

220-240V~ 50Hz, 1Ph

Rated Cooling

Capacity

Btu/h

9000(4000-11300)

12000(4300-15200)

Cooling Power input

W

816(100-1270)

1153(110-1720)

Cooling Current

A

3.5(0.4-5.5)

5.0(0.5-7.5)

Rated Heating

Capacity

Btu/h

10000(2800-12700)

13000(3640-16600)

Heating Power input

W

811(140-1330)

1055(170-1740)

Heating Current

A

3.5(0.6-5.7)

4.6(0.7-7.6)

Seasonal Cooling Pdesignc

kW

2.6

3.5

SEER

W/W

6.8

6.7

Energy Efficiency Class

A++

Heating(Average )

Pdesignh

kW

2.4

2.6

SCOP

W/W

4.1

4.2

Energy Efficiency Class

A+

Tbiv

℃

-7

Heating(Warmer )

Pdesignh

kW

3.0

SCOP

W/W

5.1

5.2

Energy Efficiency Class

A+++

Tbiv

℃

2

Tol

℃

-15

Moisture Removal

L/h

1.0

1.2

Max. input consumption

W

2075

2200

Max. current

A

9.5

10

Starting current

A

---

Compressor

Model ASN98D22UFZ

ASN98D22UFZ

Type ROTARY

ROTARY

Brand GMCC

GMCC

Capacity

Btu/h

10014

Input W 748

748

Rated current(RLA)

A

5,35

Locked rotor Amp(LRA)

A

/

Thermal protector /

/

Thermal protector position

/

Capacitor

uF

/

Refrigerant oil/oil charge

ml

ESTER OIL VG74/370

Indoor fan motor

Model ZKFP-20-8-6

ZKFP-20-8-6

Output W 20

20

Capacitor

uF

----

Speed(Hi/Mi/Lo)

r/min

----

Indoor coil a.Number of rows 1+2

1+2

b.Tube pitch(a)x row

mm

21x13.37

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pitch(b)

c.Fin spacing

mm

1.3

1.2

d.Fin type (code)

Hydrophilic aluminium

e.Tube outside dia.and type

mm

Φ6,innergroove tube

Φ7,innergroove tube

f.Coil length x height x width

mm

510x84x13.37+510x189x26.74

598x84x13.37+598x189x26.74

g.Number of circuits 2

2

Indoor air flow (Hi/Mi/Lo)

m3/h

472/360/254

563/497/224

Indoor sound pressure level (Hi/Mi/Lo/Silent)

dB(A)

40/35/28/20

41/40/33/22

Indoor sound power level (Hi)

dB(A)

53

52

Indoor unit Dimension(W*D*H)

mm

717x193x302

805x193x302

Packing (W*D*H)

mm

785x375x285

875x375x285

Net/Gross weight

Kg

7.0 / 9.3

7.7/10.2

Outdoor fan motor

Model ZKFN-40-8-1L

ZKFN-40-8-1L

Output W 40

40

Capacitor

uF

- -

Speed

r/min

810/710/520

Outdoor coil

a.Number of rows 1

1

b.Tube pitch(a)x row pitch(b)

mm

21x13.37

c.Fin spacing

mm

1,2

1.2

d.Fin type (code)

Hydrophilic aluminium

e.Tube outside dia.and type

mm

Ф7, innergroove tube

Φ7,innergroove tube

f.Coil length x height x width

mm

744x504x13.37

870x504x13.37

g.Number of circuits 2

2

Outdoor air flow

m3/h

1900

2000

Outdoor sound pressure level

dB(A)

55

56

Outdoor sound power level

dB(A)

58

59

Outdoor unit Dimension(W*D*H)

mm

770x300x555

800x333x554

Packing (W*D*H)

mm

900x345x585

920x390x615

Net/Gross weight

Kg

26.6/29

29.1/31.9

Refrigerant Type

R410A

GWP

2088

Charged quantity

Kg

0.8

0.95

Design pressure

MPa

4.2/1.5

Refrigerant piping Liquid side/ Gas side

mm(inch)

Φ6.35/Φ9.52(1/4"/3/8")

Max. refrigerant pipe length

m

25

Max. difference in level

m

10

Connection wiring

1.5(Optional)

Plug type

--

Thermostat type

Remote Control

Operation temperature Indoor(cooling/ heating)

℃

17～32/0～30

Outdoor(cooling/heating)

℃

-15～50/-15～30

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Indoor

KAY-52 DN7

KAY-71 DN7

Outdoor

KAE-52 DN7

KAE-71 DN7

Power supply

Ph-V-Hz

220-240V~ 50Hz, 1Ph

Rated Cooling

Capacity

Btu/h

18000(6500-20900)

24000(9100-26900)

Cooling Power input

W

1633(150-2350)

2306(230-3030)

Cooling Current

A

7.1(0.7-10.2)

10.0(1.0-13.2)

Rated Heating

Capacity

Btu/h

19000(4870-23000)

26000(7100-31200)

Heating Power input

W

1500(230-2400)

2302(310-3270)

Heating Current

A

6.5(1.0-10.5)

10.0(1.3-14.2)

Seasonal Cooling Pdesignc

kW

5.3

7.0

SEER

W/W

6.8

6.4

Energy Efficiency Class

A++

Heating(Average )

Pdesignh

kW

4.4

5.6

SCOP

W/W

4.2

4.0

Energy Efficiency Class

A+

Tbiv

℃

-7

Heating(Warmer )

Pdesignh

kW

4.7

7.2

SCOP

W/W

5.4

5.2

Energy Efficiency Class

A+++

Tbiv

℃

5

4

Tol

℃

-15

Moisture Removal

L/h

1.7

2.3

Max. input consumption

W

2550

3700

Max. current

A

11.5

17

Starting current

A

----

Compressor

Model ASM135D23UFZ

ATF235D22UMT

Type ROTARY

ROTARY

Brand GMCC

GMCC

Capacity

Btu/h

13836

24345

Input W 1035

1970

Rated current(RLA)

A

7,32

6,95

Locked rotor Amp(LRA)

A

/

Thermal protector /

/

Thermal protector position

/

Capacitor

uF

/

Refrigerant oil/oil charge

ml

ESTER OIL VG74/450

POE(VG74)/670

Indoor fan motor

Model ZKFP-30-8-3

ZKFP-58-8-1

Output W 30(Output)

58

Capacitor

uF

- -

Speed(Hi/Mi/Lo)

r/min

----

Indoor coil

a.Number of rows 2

2

b.Tube pitch(a)x row pitch(b)

mm

21x13.37

c.Fin spacing

mm

1.2

1.3

d.Fin type (code)

Hydrophilic aluminium

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e.Tube outside dia.and type

mm

Φ7, innergroove tube

f.Coil length x height x width

mm

750x294x26.74

820x315x26.74

g.Number of circuits

3

Indoor air flow (Hi/Mi/Lo)

m3/h

870/730/500

1176/921/446

Indoor sound pressure level (Hi/Mi/Lo/Silent)

dB(A)

45/43/34/26

47/45/35/28

Indoor sound power level (Hi)

dB(A)

58

61

Indoor unit Dimension(W*D*H)

mm

964x222x325

1106x232x342

Packing (W*D*H)

mm

1045x405x305

1195x420x315

Net/Gross weight

Kg

10.1/13.6

13.2/17

Outdoor fan motor

Model ZKFN-40-8-1L

ZKFN-50-8-2

Output W 40

50

Capacitor

uF

- -

Speed

r/min

810/700/550

810/750/600

Outdoor coil

a.Number of rows 2

2

b.Tube pitch(a)x row pitch(b)

mm

25.4x22

c.Fin spacing

mm

1.4

d.Fin type (code)

Hydrophilic aluminium

e.Tube outside dia.and type

mm

Φ9.52,innergroove tube

f.Coil length x height x width

mm

860x508x44

730x660x44

g.Number of circuits

4

Outdoor air flow

m3/h

2100

2700

Outdoor sound pressure level

dB(A)

58

61

Outdoor sound power level

dB(A)

63

65

Outdoor unit Dimension(W*D*H)

mm

800x333x554

845x363x702

Packing (W*D*H)

mm

920x390x615

965x395x755

Net/Gross weight

Kg

37.8/40.5

48.4/51.6

Refrigerant Type

R410A

GWP

2088

Charged quantity

Kg

1.48

2.0

Design pressure

MPa

4.2/1.5

Refrigerant piping Liquid side/ Gas side

mm(inch)

Φ6.35/Φ12.7(1/4"/1/2")

Φ9.52/Φ15.9(3/8"/5/8")

Max. refrigerant pipe length

m

30

50

Max. difference in level

m

20

25

Connection wiring

2.5(Optional)

Plug type --

--

Thermostat type

Remote Control

Operation

temperature

Indoor(cooling/ heating)

℃

17～32/0～30

Outdoor(cooling/heating)

℃

-15～50/-15～30

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3. Dimensions

3.1 Indoor Unit

Model

W D H

KAY-26 DN7

717

193

302

KAY-35 DN7

805

193

302

KAY-52 DN7

964

222

325

KAY-71 DN7

1106

232

342

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For KAY-26 DN7,

PRODIGY Technical Manual

12

For KAY-35 DN7,

For KAY-52 DN7,

PRODIGY Technical Manual

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For KAY-71 DN7,

PRODIGY Technical Manual

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3.2 Outdoor Unit

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For KAE-26 DN7,

PRODIGY Technical Manual

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For KAE-35 DN7, KAE-52 DN7，

PRODIGY Technical Manual

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For KAE-71 DN7,

PRODIGY Technical Manual

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4 .Refrigerant Cycle Diagram

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

ACCUMULATOR

INDOOR OUTDOOR

CHECK VALVE (Heating Model only)

CAPILIARY TUBE

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5 .Installation Details

5.1 Wrench torque sheet for installation

Outside diameter

Torque

Additional tightening torque

mm

inch

N.cm

Ф6.35

1/4

1500(153kgf.cm)

1600(163kgf.cm)

Ф9.52

3/8

2500(255kgf.cm)

2600(265kgf.cm)

Ф12.7

1/2

3500(357kgf.cm)

3600(367kgf.cm)

Ф15.9

5/8

4500(459kgf.cm)

4700(479kgf.cm)

Ф19

3/4

6500(663kgf.cm)

6700(683kgf.cm)

5.2 Connecting the cables

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

Rated current of appliance

Nominal cross-sectional area (mm²)

>3 and ≤6

0.75

>6 and ≤10

1

>10 and ≤16

1.5

>16 and ≤25

2.5

The cable size and the current of the fuse or switch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit. Please refer to the nameplate before selecting the cable, fuse and switch.

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5.3 Pipe length and the elevation

The pipe length and refrigerant amount:

Model

Pipe size

Standard

length

(m)

Max.

Elevation

B (m)

Max.

Length

A (m)

Additional refrigerant

(g/m)

Gas

Liquid

KAY-26 DN7 + KAE-26 DN7

3/8‟‟

(Ф9.52)

1/4‟‟

(Ф6.35)

5

10

25

15

KAY-35 DN7 + KAE-35 DN7

3/8‟‟

(Ф9.52)

1/4‟‟

(Ф6.35)

5

10

25

15

KAY-52 DN7 + KAE-52 DN7

1/2‟‟

(Ф12.7)

1/4‟‟

(Ф6.35)

5

20

30

15

KAY-71 DN7 + KAE-71 DN7

5/8‟‟

(Ф15.9)

3/8‟‟

(Ф9.52)

5

25

50

30

Caution:

The capacity test is based on the standard length and the maximum permissive length is based on the system reliability.

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5.4 Installation for the first time

Air and moisture in the refrigerant system have undesirable effects as below:

● Pressure in the system rises.

● Operating current rises.

● Cooling or heating efficiency drops.

● Moisture in the refrigerant circuit may freeze and block capillary tubing.

● Water may lead to corrosion of parts in the refrigerant system.

Therefore, the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system. Gas leak check (Soap water method): Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping. If bubbles come out, the pipes have leakage.

1. Air purging with vacuum pump

1) Completely tighten the flare nuts of the indoor and outdoor units, confirm that both the 2-way and 3-way valves are set to the closed position.

2) Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port..

3) Connect the charge hose of handle hi connection to the vacuum pump.

4) Fully open the handle Lo of the manifold valve.

5) Operate the vacuum pump to evacuate.

6) Make evacuation for 30 minutes and check whether the compound meter indicates -0.1Mpa. If the meter does not indicate -0.1Mpa after pumping 30 minutes, it should be pumped 20 minutes more. If the pressure can‟t achieve -0.1Mpa after pumping 50 minutes, please check if there are some leakage points.

Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump. Confirm that the gauge needle does not move (approximately 5 minutes after turning off the vacuum pump).

7) Turn the flare nut of the 3-way valves about 45° counterclockwise for 6 or 7seconds after the gas

coming out, then tighten the flare nut again. Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure. Then remove the charge hose from the 3 way valve.

8) Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve.

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2. Air purging by refrigerant

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.

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 minute; repeat 3 times. After purging the air, use a torque wrench to tighten the flare nut 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 by loosening the flare nut on the 2-way valve approximately 45‟ until the gauge indicates 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.

3. Adding the refrigerant if the pipe length >5m

Procedure:

1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve.

Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of

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the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure the liquid charge.

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) Put the charging cylinder onto the electronic scale and record the weight.

4) Operate the air conditioner at the cooling mode.

5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant.

6).When the electronic scale displays the proper weight (refer to the table), disconnect the charge hose

from the 3-way valve‟s service port immediately and turn off the air conditioner before disconnecting the hose.

7). Mount 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.

5.5 Adding the refrigerant after running the system for many years

Procedure:

1). Connect the charge hose to the 3-way service port, open the 2-way valve and the 3-way valve.

Connect the charge hose to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge.

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) Put the charging cylinder onto the electronic scale and record the weight.

4) Operate the air conditioner at the cooling mode.

5) Open the valves (Low side) on the charge set and charge the system with liquid refrigerant.

6).When the electronic scale displays the proper weight (refer to the gauge and the pressure of the low

side), disconnect the charge hose from the 3-way valve‟s service port immediately and turn off the air conditioner before disconnecting the hose.

7). Mount 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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5.6 Re-installation while the indoor unit need to be repaired

1. Collecting the refrigerant into the outdoor unit

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). Connect the charge hose with the push pin of handle lo to the 3-way valves gas service port.

3). Air purging of the charge hose.

Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly.

4). Set the 2-way valve to the close position.

5). Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0.1MPa.

6). Set the 3-way valve to the closed position immediately

Do this quickly so that the gauge ends up indicating 0.3 to 0.5Mpa. Disconnect the charge set, and tighten the 2-way and 3-way valve‟s stem nuts. Use a torque wrench to tighten the 3-way valves service port cap to a torque of 18N.m. Be sure to check for gas leakage.

2. Air purging by the refrigerant

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.

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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 minute; repeat 3 times. After purging the air, use a torque wrench to tighten the flare nut 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 by loosening the flare nut on the 2-way valve approximately 45‟ until the gauge indicates 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.

5.7 Re-installation while the outdoor unit need to be repaired

1. Evacuation for the whole system

Procedure:

1). Confirm that both the 2-way and 3-way valves are set to the opened position.

2). Connect the vacuum pump to 3-way valve‟s service port.

3). Evacuation for approximately one hour. Confirm that the compound meter indicates -0.1Mpa.

4). 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).

5). Disconnect the charge hose from the vacuum pump.

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2. Refrigerant charging

Procedure:

1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve

Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. If the refrigerant is R410A, make the cylinder bottom up to ensure liquid charge.

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) Put the charging cylinder onto the electronic scale and record the weight.

4). 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, or can be charged with a little at a time (approximately 150g each time) , operating the air conditioner in the cooling cycle; however, one time is not sufficient, wait approximately 1 minute and then repeat the procedure.

5).When the electronic scale displays the proper weight, disconnect the charge hose from the 3-way

valve‟s service port immediately If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air conditioner before disconnecting the hose.

6). 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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6. Disassemble Guide

6.1 How to Remove the filter

Step1: Put your hands at A and B, lift the filter a little to loosen the fastener

Step2: Pull the filter gently along the horizontal direction.

Step3: Pull out the filter.

6.2 How to Remove the horizontal louver

Step1: Open the horizontal louver ,push the locker towards right to open it.

Step2: Bend the horizontal louver lightly, remove it from the indoor unit.

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6.3 How to hold the indoor for piping

connection

Step1: Open the screw caps A and B, remove the two screws.

Step2: Open the panel assembly, move the slider to fix the panel.

Step3: Press the locker A and B, to lose the indoor from the installation plate

Step4: Unfold the supporter of Installation plate, then let it to hold the indoor unit, helpful to do pipe connection in the back

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6.4 How to Remove the panel assembly

Step1: Open the screw caps A and B, remove the two screws.

Step2: Open the panel assembly, loosen the display board connector.

Step3: Pull the panel assembly along the direction indicated in right image to remove it.

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6.5 How to Remove the PCB

Step1: Press A to remove the terminal cover.

Step2: Remove screw B to remove the cover of the electronic control box .

Step3: Then you can remove the PCB.

Note: It is not necessary to remove the panel to remove the PCB. in order to show clearly inside, these pictures are without panel.

6.6 How to Remove the Electrical control

box

Step1: Remove screw A,B,C, pull out the coil temp. sensor D from the sensor holders.

Step2: pull out the Electrical control box.

Note: It is not necessary to remove the panel to remove the Electrical control box, in order to show clearly inside, these pictures are without panel.

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6.7 How to Remove the Chassis assembly

CAUTION: Because the 24K indoor unit is

relatively large and heavy, it must have two persons to implement the following steps.

Step1: Remove the left and right pipe cover.

Step2: Remove the 5 screws A,B,C,D,E remove support part F and G.

Note: Screw E is behind the E-box by mistake for this sample, you need to remove screw X, to lift the E-box a little, Then you can remove the Screw E. This problem will be solved before mass-production.

Step3: Open the E-box, to lose the fan motor and louver motor connectors from the PCB.

Step4:

Press the locker H and I, to lose the indoor from the installation plate, lift it a little and pull out it along the direction indicated in right image.

Note: It is not necessary to remove the panel to remove the Chassis assembly, in order to show clearly inside, these pictures are without panel

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6.8 How to Remove the Evaporator

assembly

CAUTION: Because the 24K indoor unit is

relatively large and heavy, it must have two persons to implement the following steps.

Step1: Remove the Electric control box.

Step2: Remove the Chassis assembly

Step3: Unfold the Pipe clamp board C, remove screw A and B.

Step4: Pull out the evaporator.

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7. Operation Characteristics

Mode

Temperature

Cooling operation

Heating operation

Drying operation Room temperature

17℃~32℃ (62℉~90℉)

0℃~30℃ (32℉~86℉)

10℃~32℃ (50℉~90℉)

Outdoor temperature

0℃~50℃ (32℉~122℉)

-15℃~30℃ (5℉~86℉)

0℃~50℃ (32℉~122℉)

-15℃~50℃ (5℉~122℉) (For the models with low temperature cooling system)

CAUTION:

1. If the air conditioner is used beyond the above conditions, certain safety protection features

may come into operation and cause the unit to operate abnormally.

2. The room relative humidity should be less than 80%. If the air conditioner operates beyond this figure, the surface of the air conditioner may attract condensation. Please set the vertical air flow louver to its maximum angle (vertically to the floor), and set HIGH fan mode.

3. For units with auxiliary electric heater .When outside temperature is below 0°C(32°F ),we strongly recommend keeping the unit plugged in at all times to ensure smooth ongoing performance.

4. The optimum performance will be achieved during this operating temperature zone.

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8. Electronic function

8.1 Abbreviation

T1: Indoor room temperature T2: Coil temperature of evaporator T3: Coil temperature of condenser T4: Outdoor ambient temperature T5: Compressor discharge temperature

8.2 Display function

8.2.1 Icon explanation on indoor display board.

Digital display: Displays the temperature settings when the air conditioner is operational. Displays the room temperature in Fan and Drying mode. Displays the self-diagnostic codes.

Dispalys „ ‟ for three seconds when Timer ON, Fresh, Swing, Turbo or Silence feature is activated.

Dispalys „ ‟ for three seconds when Timer OFF is set.

Dispalys „ ‟ for three seconds when Fresh, Swing, Turbo or Silence feature is cancelled.

Dispalys „ ‟ under deforsting operation.

Dispalys „ ‟ when anti-cold air feature is activated under heating mode.

Dispalys „ ‟ during self clean operation (if aplicable).

Dispalys „ ‟ when freeze protection is turned on (if aplicable).

When ECO function(optional) is actived,the “ ” illuminates gradually one by one as

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In one second interval.

WIFI control display(optional) Displays when the WIFI control feature is activated. (Not available when the unit does not have this function) NOTE: A guide on using the infrared remote is not included in this literature package.

8.3 Main Protection

8.3.1 Three minutes delay at restart for compressor

Less than 1 minute delay for the 1st time stand-up and 3 minutes delay for others.

8.3.2 Temperature protection of compressor top

The unit will stop working when the compressor top temp. protector cut off, and will restart after the compressor top temp. protector restart.

8.3.3 Temperature protection of compressor discharge

Compressor discharge temp. T5>115℃ for 5s, compressor stops.

8.3.4 Fan speed is out of control

When indoor fan speed keeps too low (300RPM) for certain time, the unit will stop and the LED will display the failure

8.3.5 Inverter module protection

The Inverter module has a protection function about current, voltage and temperature. If these protections happen, the corresponding code will display on indoor unit and the unit will stop working.

8.3.6 Indoor fan delayed open function

When the unit starts up, the louver will be active immediately and the indoor fan will open 7s later. If the unit runs in heating mode, the indoor fan will be also controlled by anti-cold wind function.

8.3.7 Compressor preheating functions

Preheating permitting condition: When T4(outdoor ambient temperature)＜3°C, the preheating function will be activated.

8.3.8 Sensor protection at open circuit and breaking disconnection.

When there‟s only one temperature sensor in malfunction , the air conditioner will keep working but show the error code, in case of any emergency use. When there‟s more than one temperature sensor in malfunction, the air conditioner will stop working.

8.3.9 Refrigerant leakage detection

This function is only active in cooling mode. It can better prevent the compressor being damaged by refrigerant leakage or compressor overload. Open condition: When compressor is active, the value of the Coil temperature of evaporator T2 has no change or very little change.

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8.4 Operation Modes and Functions

8.4.1 Fan mode

(1) Outdoor fan and compressor stop.

(2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode. (5) Auto fan:

a

b

c

d

T1

e

8.4.2 Cooling Mode

8.4.2.1 Compressor running rules

When T1- Ts <ΔT -2℃, the compressor will stop, when T1—Ts >ΔT -0.5℃，the compressor will be activated. ΔT is the programmed parameter of temperature compensation. When the AC run in mute mode, the compressor will run with low frequency. When the current is more than setting value, the current protection function will be activated, and the compressor will stop.

8.4.2.2 Outdoor fan running rules

The outdoor unit will be run at different fan speed according to T4. For different outdoor units, the fan speeds are different.

T4

A+

A

B

C

D

E

8.4.2.3Indoor fan running rules

In cooling mode, indoor fan runs all the time and the speed can be selected as high, medium, low and auto. When the setting temp. is reached, if the compressor stop running, indoor fan motor will run in Minimum speed or setting speed. The indoor fan is controlled as below:

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Setting fan

speed

Actual fan speed

H+(H+=H+G) A H（=H） B C

M+(M+=M+Z) D M(M=M) E F

L+(L+=L+D) G L(L=L) H I

T1-Td ℃(°F)

L

L-(L-=L-D)

H

H-（H-=H-G)

M

M-(M-=M-Z)

The auto fan acts as below rules:

a

b

c

d

T1

e

8.4.2.4 Condenser temperature protection

T3

Resume

Off

Decrease

Hold

When condenser temperature temp. is more than setting value, the compressor will stop.

8.4.2.5 Evaporator temperature protection

When Evaporator temperature temp.is less than setting value, the compressor will stop.

8.4.3 Heating Mode

8.4.3.1 Compressor running rules

When T1-Ts>-ΔT, the compressor will stop, when T1-TS<ΔT-1.5，the compressor will be on. ΔT is the programmed parameter of temperature compensation. When the AC run in mute mode, the compressor will run with low frequency. When the current is more than setting value, the current protection function will be activated and the compressor will stop.

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8.4.3.2 Outdoor fan running rules

The outdoor unit will be run at different fan speed according to T4. For different outdoor units, the fan speeds are different

T4

E

D

C

B

A A+

8.4.3.3 Indoor fan running rules When the compressor is on, the indoor fan can be set to high/med/low/auto/mute.

When indoor unit coil temp. is low, the anti-cold air function will start and indoor fan motor will run at low speed, the speed can‟t be changed ,when the temp. is lower than setting value, the indoor fan motor will stop. When the indoor temp reaches the setting temp., the compressor will stop, the indoor fan motor will run at the minimum speed or setting speed.(The anti-cold air function is valid). The indoor fan is controlled as below:

Setting fan

speed

Actual fan speed

H（=H）

H+(H+=H+G)

M(M=M)

M+(M+=M+Z)

L(L=L)

L+(L+=L+D)

H-（H-=H-G)

M-(M-=M-Z)

L-(L-=L-D)

T1-Td℃

L

H

M

Auto fan action in heating mode:

T1-Td+¦ ¤T

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8.4.3.4Defrosting mode

AC will enter the defrosting mode according to the value of temp. of T3 and the value range of temp. change of T3 and also the compressor running time. During the defrosting mode, the compressor keep running, indoor and outdoor motor will stop, defrost

lamp of the indoor unit will be lighted “ .” Will be displayed. If any one of the following items is satisfied, the defrosting will finish and the machine will turn to

normal heating mode.

----T3 rises to be higher than TCDE1℃.

----T3 keeps to be higher than TCDE2℃ for 80 seconds.

----The machine has run for 15 minutes in defrosting mode.

8.4.3.5 Evaporator coil temperature protection

Resume

Off

Decrease

Hold

When evaporator temperature temp. is more than the setting protection value, the compressor will stop.

8.4.4 Auto-mode

This mode can be chosen with remote controller and the setting temperature can be changed between 17°C~30°C In auto mode, the machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).

T1-Ts

Cooling

Heating*

Fan only

Heating*: For cooling only models, they will run at fan speed Indoor fan will run at auto fan of the relevant mode. The louver operates same as in relevant mode. If the machine switches mode between heating and cooling, the compressor will keep stopping for certain time and then choose mode according to T1-Ts. If the setting temperature is modified, the machine will choose running function again.

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8.4.5 Drying mode

Indoor fan speed is fixed at breeze and can‟t be changed. The louver angle is the same as in cooling mode. All protections are active and the same as that in cooling mode.

8.4.6 Forced operation function

Forced cooling mode: The compressor and outdoor fan keep running and the indoor fan runs at low speed. After running for 30 minutes, AC will turn to auto mode with 24℃ setting temperature. Forced auto mode: The action of forced auto mode is the same as normal auto mode with 24℃ setting temperature. When AC receives signals, such as switch on, switch off, timer on, timer off, mode setting, fan speed setting, sleeping mode setting, follow me setting, it will quit the forced operation.

8.4.7 Economy function

8.4.7.1 The sleep function is available in cooling, heating or auto mode.

8.4.7.2. Operation process in sleep mode is as follow: When cooling, the setting temperature rises 1℃ (be lower than 30℃) every one hour, 2 hours later the setting temperature stops rising and the indoor fan is fixed at low speed. When heating, the setting temperature decreases 1℃ (be higher than 17℃) every one hour, 2 hours later the setting temperature stops rising and indoor fan is fixed at low speed. (Anti-cold wind function has the priority).

8.4.7.3 Operation time in sleep mode is 7 hours. After 7 hours the AC quits this mode and turns off.

8.4.7.4 Timer setting is available

8.4.8 Auto-Restart function

The indoor unit is equipped with auto-restart function, which is carried out through an auto-restart module. In case of a sudden power failure, the module memorizes the setting conditions before the power failure. The unit will resume the previous operation setting (not including swing function) automatically after 3 minutes when power returns. If the memorization condition is forced cooling mode, the unit will run in cooling mode for 30 minutes and turn to auto mode as 24℃ setting temp. If AC is off before power off and AC is required to start up now, the compressor will have 1 minute delay when power on. Other conditions, the compressor will have 3 minutes delay when restarts.

8.4.9 Refrigerant Leakage Detection

With this new technology, the display area will show “EC” when the outdoor unit detects refrigerant leakage.

8.4.10 8℃ Heating(optional)

In heating operation, the preset temperature of the air conditioner can be as lower as 8℃, which keeps the room temperature steady at 8℃ and prevents household things freezing when the house is unoccupied for a long time in severe cold weather.

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8.4.11Self clean(optional)

For heat pump models which are provided with this function, after running in cooling or drying mode, if

the user press “Self Clean” button on remote controller, firstly, indoor unit runs in fan only mode for a

while, then low heat operation and finally runs in fan only again. This function can keep the inside of indoor unit dry and prevent breeding of mold.

8.4.12 Follow me(optional)

1) If the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote controller, the buzzer will emit a sound and this indicates the follow me function is initiated. But when the indoor PCB receives signal which sent from remote controller every 3 minutes, the buzzer will not respond. When the unit is running with follow me function, the PCB will control the unit according to the temperature from follow me signal, and the temperature collection function of room temperature sensor will be shielded, but the error detective function of room temperature sensor will be still valid.

2) When the follow me function is available, the PCB will control the unit according to the room temperature from the remote controller and the setting temperature.

3) The PCB will take action to the mode change information from remote controller signal, but it will not affected by the setting temperature.

4) When the unit is running with follow me function, if the PCB doesn‟t receive any signal from remote controller for 7 minutes or pressing FOLLOW ME button again, the follow me function will be turned off automatically, and the temperature will control the unit according to the room temperature detected from its own room temperature sensor and setting temperature.

8.4.13 Silence operation(optional)

Press the “silence” button on remote controller to initiate SILENCE function. When the Silence function is activated, the compressor running frequency will keep lower than F2 and the indoor unit will bring faint breeze, which will reduce the noise to the lowest level and create a quiet and comfortable room for you.

8.4.14 Easy control(optional)

For AE series，On-off port, XYE port, WIFI，wired controller(5-cored) can be chosen at the same time. Non-polar wired controller,4-cored wired controller, and central controller are mutually exclusive.

8.4.15 Point check function

Press the LED DISPLAY or LED or MUTE button of the remote controller three times, and then press the AIR DIRECTION or SWING button three times in ten seconds, the buzzer will keep ring for two seconds. The air conditioner will enter into the information enquiry status. You can press the LED DISPLAY or AIR DIRECTION button to check the next or front item‟s information within 27 seconds.

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When the AC enter the “information enquiry” status, it will display the code name in 2 seconds, the details are as follows.

Enquiry information

Displaying code

Meaning

T1

T1 temp.

T2

T2 temp.

T3

T3 temp.

T4

T4 temp.

T2B

Tb

T2B temp.

TP

TP temp.

TH

TH temp.

Targeted Frequency

FT

Targeted Frequency

Actual Frequency

Fr

Actual Frequency

Indoor fan speed

IF

Indoor fan speed

Outdoor fan speed

OF

Outdoor fan speed

EXV opening angle

LA

EXV opening angle

Compressor continuous running time

CT

Compressor continuous running time

Causes of compressor stop.

ST

Causes of compressor stop.

Reserve

A0 Reserve

A1 Reserve

0 Reserve

1 Reserve

2 Reserve

3 Reserve

4 Reserve

5 Reserve

6

Reserve

L

Reserve

A Reserve

U Reserve

T Reserve

A

Reserve

S

Reserve

T

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When the AC enters into the information enquiry status, it will display the code value in the next 25s, the details are as follows.

Enquiry information

Display value

Meaning

Remark

T1,T2,T3,T4, T2B,TP,TH, Targeted Frequency, Actual Frequency

-1F,-1E,-1d,1c,-1b,-1A

-25,-24,-23,-22,-21,-20

1. All the displaying temperature is actual value.

2. All the temperature is °C no matter what kind of remote controller is used.

3. T1,T2,T3,T4,T2B display range:-25~70, TP display range:-20~130.

4. Frequency display range: 0~159HZ.

5. If the actual value exceeds the range, it will display the maximum value or minimum value.

-19—99

A0,A1,…A9

100,101,…109

b0,b1,…b9

110,111,…119

c0,c1,…c9

120,121,…129

d0,d1,…d9

130,131,…139

E0,E1,…E9

140,141,…149

F0,F1,…F9

150,151,…159

Indoor fan speed /Outdoor fan speed

0

OFF

1,2,3,4

Low speed, Medium speed, High speed, Turbo

For some big capacity motors.

14-FF

Actual fan speed=Display value turns to decimal value and then multiply 10. The unit is RPM.

For some small capacity motors, display value is from 14-FF(hexadecimal), the corresponding fan speed range is from 200-2550RPM.

EXV opening angle

0-FF

Actual EXV opening value=Display value turns to decimal value and then multiply 2.

Compressor continuous running time

0-FF

0-255 minutes

If the actual value exceeds the range, it will display the maximum value or minimum value.

Causes of compressor stop.

0-99

For the detailed meaning, please consult with engineer

Decimal display

Reserve

0-FF

Reserve

2~28 Reserve

5~20

Reserve

5~25

8.5 Multi-function board instruction (This multi-function board is optional)

8.5.1. Function

The multi-function board receives the signal of 4-cored wired controller(central controller),Non-polar wired controller and CP remote on-off signal( ON-OFF command signal) . Then converting it to the communication signal to the main control board. The multi-function board can output Alarm signal.

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The multi-function board has two versions, one for Non-polar wired controller, the other one for 4-cored wired controller or central controller.

8.5.2. CP remote on-off

8.5.2.1 For CP command, closed indicate the remote on-off control signal OFF, Disconnected indicate the remote on-off control signal ON. It needs 3 seconds to determine on/off status. CP command will be delivered one time immediately after power on.

8.5.2.2 Dip-switch F2 setting status are as below:

Dip-switch 2

Dip-switch 1

Remote on-off control status

OFF

Disconnected send CP, closed cancel CP

ON

OFF

Closed send CP, disconnected cancel CP

8.5.3. ON-OFF control

8.5.3.1 It needs 3 seconds to determine on/off status. ON-OFF command do not be delivered after power on, only when the status changed, It can send the command.

8.5.3.2 When ON-OFF control disconnected, it will send switch-on signal: the unit will run in Auto mode ,Auto fan speed, 24℃ setting temp. When ON-OFF control closed, it will send switch-off signal.

8.5.3.3 Dip-switch F2 setting status are as below:

Dip-switch 2

Dip-switch 1

Remote on-off control status

OFF

ON

Disconnected send ON, closed send OFF

ON

Closed send OFF，disconnected send ON

8.5.4. 4-cored wired controller，Central controller and Non-polar wired controller

Note: 4-cored wired controller，Central controller and Non-polar wired controller

are mutually exclusive. They can only be chosen one of three at the same time.

8.5.4.1 For network address, Dip-switch F1 and Rotary switch ENC3 are set as below:

Dip-switch 2

Dip-switch 1

Based address

OFF

0

OFF

ON

16

ON

OFF

32

ON

48

Note: The network address are the Dip-switch F1 address plus Rotary switch ENC3 address.

8.5.4.2 If it receives the network address set by remote controller, the network address will be changed .If it receives the cancel signal of network address set by remote controller, the network address will be disposed according to the setting of Dip-switch F1 and Rotary switch ENC3.

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8.5.4.3 The network address is useless for 4-cored wired controller, only valid for Central controller

and Non-polar wired controller.

8.5.5. Non-polar wired controller

8.5.1 Each Non-polar wired controller can be connect to Max. 16 indoor units .All the indoor units

must be the same series, and in the same network. The address of Multi-function board must be set differently. The connection method must be Bus type.

8.5.2 The setting state are the same for all the indoor units connected to the same Non-polar wired

controller

8.5.6.Alarm port output

8.5.6.1 When the Air-condition in off state, the output signal is closed.

8.5.6.2 When the Air-condition in malfunction state, the output signal is closed.

8.5.6.3 When the Air-condition in on state, the output signal is disconnected.

8.5.7．Wiring diagram

8.5.7.1 Connected to 4-cored wired controller or Central controller

8.5.7.2 Connected to Non-poplar wired controller

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9. Troubleshooting

Safety

Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor.

Electrolytic Capacitors

(HIGH VOLTAGE! CAUTION!)

For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

Note: The picture above is only for reference. The plug of your side may be different.

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9.1 Indoor Unit Error Display

Operation

lamp

Timer lamp

Display

LED STATUS

☆ 1 time

X

E0

Indoor unit EEPROM parameter error

☆ 2 times

X

E1

Indoor / outdoor units communication error

☆ 4 times

X

E3

Indoor fan speed has been out of control

☆ 5 times

X

E4

Indoor room temperature sensor T1 open circuit or short circuit

☆ 6 times

X

E5

Evaporator coil temperature sensor T2 open circuit or short circuit

☆ 7 times

X

EC

Refrigerant leakage detection

☆ 1 times

O

F0

Overload current protection

☆ 2 times

O

F1

Outdoor ambient temperature sensor T4 open circuit or short circuit

☆ 3 times

O

F2

Condenser coil temperature sensor T3 open circuit or short circuit

☆ 4 times

O

F3

Compressor discharge temperature sensor T5 open circuit or short circuit

☆ 5 times

O

F4

Outdoor unit EEPROM parameter error

☆ 6 times

O

F5

Outdoor fan speed has been out of control

☆ 1 times

☆

P0

IPM malfunction or IGBT over-strong current protection

☆ 2 times

☆

P1

Over voltage or over low voltage protection

☆ 3 times

☆

P2

High temperature protection of compressor top diagnosis and solution

☆ 5 times

☆

P4

Inverter compressor drive error

O（light） X（off） ☆（flash）

PRODIGY Technical Manual

48

9.2 Trouble shooting

9.2.1 EEPROM parameter error diagnosis and solution(E0/F4)

Error Code

E0/F4

Malfunction decision conditions

Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip.

Supposed causes

● Installation mistake

● PCB faulty

Trouble shooting:

Yes

Replace the indoor/outdoor

main PCB.

Power off, then restart the

unit 2 minutes later.

EEPROM: a read-only memory whose contents can be erased and reprogrammed using a pulsed voltage. For the location of EEPROM chip, please refer to the below photos.

Note: The two photos above are only for reference, it’s may be not same totally with the ones on your side.

Indoor PCB

Outdoor PCB

PRODIGY Technical Manual

49

9.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1)

Error Code

E1

Malfunction decision conditions

Indoor unit does not receive the feedback from outdoor unit during

110 seconds and this condition happens four times continuously.

Supposed causes

● Wiring mistake

● Indoor or outdoor PCB faulty

Trouble shooting:

Measure Vs, is it positive fluctuation? (Vs is the voltage between S and N of outdoor unit. Red pan-S, Black pan-N)

Yes

Power off, then restart the unit 2 minutes later

No

Replace the outdoor main PCB.

Power on. Is the error

extinguished?

Replace the outdoor main PCB.

Power on. Is the error

extinguished?

Check the outdoor wiring connection

Replace the indoor main PCB.

Power on. Is the error

extinguished?

Replace the indoor main PCB.

Power on. Is the error

extinguished?

Yes

Replace the outdoor main PCB.

No

Replace the indoor main PCB.

No

Check the indoor wiring connection

Yes

Check whether reactor is normal?

Yes

Replace the reactor

No

PRODIGY Technical Manual

50

Remark:

Use a multi meter to test the resistance of the reactor which does not connect with capacitor. The normal value should be around zero ohm. Otherwise, the reactor must have malfunction and need to be replaced.

PRODIGY Technical Manual

51

9.2.3 Fan speed has been out of control diagnosis and solution(E3)

Error Code

E3/F5

Malfunction decision conditions

When indoor fan speed keeps too low (300RPM) for certain time, the unit will stop and the LED will display the failure.

Supposed causes

● Wiring mistake

● Fan ass’y faulty

● Fan motor faulty

● PCB faulty

Trouble shooting:

Power off, then restart the

unit 2 minutes later

Shut off the power supply, Rotate the fan by hand.

The unit operates normally.

Find out the cause and have

it solved

Check the wiring of fan

motor

No

Yes

No

Correct the connections.

No

NoReplace the fan motor

Yes

Measure the voltage for the

fan motor from the main

PCB

Yes

Replace the main PCBNo

PRODIGY Technical Manual

52

Index1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor)

Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.

DC motor voltage input and output

NO.

Color

Signal

Voltage

1

Red

Vs/Vm

280V~380V

2

---

3

Black

GND

0V

4

White

Vcc

14-17.5V

5

Yellow

Vsp

0~5.6V

6

Blue

FG

14-17.5V

2. Outdoor DC Fan Motor (control chip is in outdoor PCB) Power on ,and check if the fan can run normally, if the fan can run normally, the PCB must has problems and need to be replaced, If the fan can‟t run normally, measure the resistance of each two pins. If the resistance is not equal to each other, the fan motor must have problems and need to be replaced, otherwise the PCB must has problems and need to be replaced.

3. Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V power supply), the PCB must has problems and need to be replaced.

PRODIGY Technical Manual

53

9.2.4 Refrigerant Leakage Detection diagnosis and solution(EC)

Error Code

EC

Malfunction decision conditions

Define the evaporator coil temp.T2 of the compressor just starts running as Tcool. In the beginning 8 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and compressor running frequency higher than 50H does not keep continuous 3 minutes, and this situation happens 3 times, the display area will show “EC” and AC will turn off.

Supposed causes

● T2 sensor faulty

● Indoor PCB faulty

● System problems, such as leakage or blocking.

Trouble shooting:

Check cool air blowing out from indoor air outlet

Yes

Check if T2 sensor

is well fixed

No

Check leakage of system

No

Power off, then restart the

unit 2 minutes later.

Replace indoor PCB.

Yes

Repair the leakage and

recharge the refrigerant.

Yes

check blockIng of system and

clear the blocking

9.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5)

PRODIGY Technical Manual

54

Error Code

E4/E5/F1/F2/F3

Malfunction decision conditions

If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure.

Supposed causes

● Wiring mistake

● Sensor faulty

Trouble shooting:

Check the connection between temperature

sensor and PCB.

Correct the connectionNo

Yes

Replace indoor or outdoor

main PCB

Measure the resistance

value of the sensor

Repalce the sensorNo

Yes

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55

9.2.6 Overload current protection diagnosis and solution(F0)

Error Code

F0

Malfunction decision conditions

An abnormal current rise is detected by checking the specified current detection circuit.

Supposed causes

● Power supply problems.

● System blockage

● PCB faulty

● Wiring mistake

● Compressor malfunction

Check the power supply

Check the connections and wires

Stop the unit

No

Yes

No

Correct the connections or

replace the wires.

Yes

Replace the outdoor unit

Yes

Check the reactor

No

Replace outdoor main PCB

Check the blockage of system

Yes

No Clear the blockage

Check the compressor

resistance values

Yes

No Replace the compressor

PRODIGY Technical Manual

56

9.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)

Error Code

P0

Malfunction decision conditions

When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off.

Supposed causes

● Wiring mistake

● IPM malfunction

● Outdoor fan ass’y faulty

● Compressor malfunction

● Outdoor PCB faulty

Trouble shooting:

Check the wiring between main PCB and compressor

Correct the connection or replace

the wires and connectors.

Yes

No

Check the IPM No

Yes

Replace the IPM board or replace

the main PCB

Check the outdoor fan and the

outdoor unit ventilation

No

Please refer to the solution of 【Fan

Speed Has Been Out Of Control】

malfunction

Yes

Check the compressor resistance

values

No

Replace the compressor.

Yes

Replace the outdoor main PCB

PRODIGY Technical Manual

57

 IPM continuity check

Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N.

Digital tester

Normal resistance value

Digital tester

Normal resistance value

(+)Red

(-)Black

∞

(Several MΩ)

(+)Red

(-)Black

∞

(Several MΩ)

P

N

U N U V V W W

(+)Red

9.2.8 Over voltage or too low voltage protection diagnosis and solution(P1)

Error Code

P1

Malfunction decision conditions

An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit.

Supposed causes

● Power supply problems.

● System leakage or block

● PCB faulty

Trouble shooting:

Check the power supply

Check the connections and wires

Stop the unit

No

Yes

No

Correct the connections or

replace the wires.

Yes

Replace the reactor

Yes

No

Replace the IPM board

Power on and when the unit is in standby,

check if the voltage between P and N is

around DC 310V or 340V or 380V? Then

start up the unit, measure the voltage

between P and N. Is it in 220V~400V?

Check the reactor

Yes

No

Replace outdoor main PCB

PRODIGY Technical Manual

58

9.2.9 High temperature protection of compressor top diagnosis and solution(P2)

Error Code

P2

Malfunction decision conditions

If the sampling voltage is not 5V, the LED will display the failure.

Supposed causes

● Power supply problems.

● System leakage or block

● PCB faulty

Trouble shooting:

Check the air flow system

of indoor and outdoor units

Clear up the air inlet and outlet or the heat

exchanger of indoor and outdoor units.

Yes

No

Yes

Power off, then restart the unit 10

minutes later

Check if the temperature

of compressor

No

Check refrigerant system

Yes

Check the overload

protector

Correct the connection.No

Measure the resistance

between the two ports of

the OLP. Is it zero?

Yes

Replace the OLP.

No

Replace the outdoor control PCB.

Yes

PRODIGY Technical Manual

59

9.2.10 Inverter compressor drive error diagnosis and solution(P4)

Error Code

P4

Malfunction decision conditions

An abnormal inverter compressor drive is detected by a special detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on.

Supposed causes

● Wiring mistake

● IPM malfunction

● Outdoor fan ass’y faulty

● Compressor malfunction

● Outdoor PCB faulty

Trouble shooting:

Check the wiring between main PCB and compressor

Correct the connection or replace

the wires and connectors.

Yes

No

Check the IPM No

Yes

Replace the IPM board or replace

the main PCB

Check the outdoor fan and the

outdoor unit ventilation

No

Please refer to the solution of 【Fan

Speed Has Been Out Of Control】

malfunction

Yes

Check the compressor resistance

values

No Replace the compressor.

Yes

Replace the outdoor main PCB

PRODIGY Technical Manual

60

Main parts check

1. Temperature sensor checking

Disconnect the temperature sensor from PCB, measure the resistance value with a tester.

Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.

PRODIGY Technical Manual

61

Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (°C--K)

°C

°F

K Ohm

°C

°F

K Ohm

°C

°F

K Ohm

°C

°F

K Ohm

-20

-4

115.266

20

68

12.6431

60

140

2.35774

100

212

0.62973

-19

-2

108.146

21

70

12.0561

61

142

2.27249

101

214

0.61148

-18 0 101.517

22

72

11.5

62

144

2.19073

102

216

0.59386

-17 1 96.3423

23

73

10.9731

63

145

2.11241

103

217

0.57683

-16 3 89.5865

24

75

10.4736

64

147

2.03732

104

219

0.56038

-15 5 84.219

25

77

10

65

149

1.96532

105

221

0.54448

-14 7 79.311

26

79

9.55074

66

151

1.89627

106

223

0.52912

-13 9 74.536

27

81

9.12445

67

153

1.83003

107

225

0.51426

-12

10

70.1698

28

82

8.71983

68

154

1.76647

108

226

0.49989

-11

12

66.0898

29

84

8.33566

69

156

1.70547

109

228

0.486

-10

14

62.2756

30

86

7.97078

70

158

1.64691

110

230

0.47256

-9

16

58.7079

31

88

7.62411

71

160

1.59068

111

232

0.45957

-8

18

56.3694

32

90

7.29464

72

162

1.53668

112

234

0.44699

-7

19

52.2438

33

91

6.98142

73

163

1.48481

113

235

0.43482

-6

21

49.3161

34

93

6.68355

74

165

1.43498

114

237

0.42304

-5

23

46.5725

35

95

6.40021

75

167

1.38703

115

239

0.41164

-4

25

44

36

97

6.13059

76

169

1.34105

116

241

0.4006

-3

27

41.5878

37

99

5.87359

77

171

1.29078

117

243

0.38991

-2

28

39.8239

38

100

5.62961

78

172

1.25423

118

244

0.37956

-1

30

37.1988

39

102

5.39689

79

174

1.2133

119

246

0.36954

0

32

35.2024

40

104

5.17519

80

176

1.17393

120

248

0.35982

1

34

33.3269

41

106

4.96392

81

178

1.13604

121

250

0.35042

2

36

31.5635

42

108

4.76253

82

180

1.09958

122

252

0.3413

3

37

29.9058

43

109

4.5705

83

181

1.06448

123

253

0.33246

4

39

28.3459

44

111

4.38736

84

183

1.03069

124

255

0.3239

5

41

26.8778

45

113

4.21263

85

185

0.99815

125

257

0.31559

6

43

25.4954

46

115

4.04589

86

187

0.96681

126

259

0.30754

7

45

24.1932

47

117

3.88673

87

189

0.93662

127

261

0.29974

8

46

22.5662

48

118

3.73476

88

190

0.90753

128

262

0.29216

9

48

21.8094

49

120

3.58962

89

192

0.8795

129

264

0.28482

10

50

20.7184

50

122

3.45097

90

194

0.85248

130

266

0.2777

11

52

19.6891

51

124

3.31847

91

196

0.82643

131

268

0.27078

12

54

18.7177

52

126

3.19183

92

198

0.80132

132

270

0.26408

13

55

17.8005

53

127

3.07075

93

199

0.77709

133

271

0.25757

14

57

16.9341

54

129

2.95896

94

201

0.75373

134

273

0.25125

15

59

16.1156

55

131

2.84421

95

203

0.73119

135

275

0.24512

16

61

15.3418

56

133

2.73823

96

205

0.70944

136

277

0.23916

17

63

14.6181

57

135

2.63682

97

207

0.68844

137

279

0.23338

18

64

13.918

58

136

2.53973

98

208

0.66818

138

280

0.22776

19

66

13.2631

59

138

2.44677

99

210

0.64862

139

282

0.22231

PRODIGY Technical Manual

62

Appendix 2 Temperature Sensor Resistance Value Table for T5 (°C --K)

°C

°F

K Ohm

°C

°F

K Ohm

°C

°F

K Ohm

°C

°F

K Ohm

-20

-4

542.7

20

68

68.66

60

140

13.59

100

212

3.702

-19

-2

511.9

21

70

65.62

61

142

13.11

101

214

3.595

-18

0

483

22

72

62.73

62

144

12.65

102

216

3.492

-17

1

455.9

23

73

59.98

63

145

12.21

103

217

3.392

-16

3

430.5

24

75

57.37

64

147

11.79

104

219

3.296

-15

5

406.7

25

77

54.89

65

149

11.38

105

221

3.203

-14

7

384.3

26

79

52.53

66

151

10.99

106

223

3.113

-13

9

363.3

27

81

50.28

67

153

10.61

107

225

3.025

-12

10

343.6

28

82

48.14

68

154

10.25

108

226

2.941

-11

12

325.1

29

84

46.11

69

156

9.902

109

228

2.86

-10

14

307.7

30

86

44.17

70

158

9.569

110

230

2.781

-9

16

291.3

31

88

42.33

71

160

9.248

111

232

2.704

-8

18

275.9

32

90

40.57

72

162

8.94

112

234

2.63

-7

19

261.4

33

91

38.89

73

163

8.643

113

235

2.559

-6

21

247.8

34

93

37.3

74

165

8.358

114

237

2.489

-5

23

234.9

35

95

35.78

75

167

8.084

115

239

2.422

-4

25

222.8

36

97

34.32

76

169

7.82

116

241

2.357

-3

27

211.4

37

99

32.94

77

171

7.566

117

243

2.294

-2

28

200.7

38

100

31.62

78

172

7.321

118

244

2.233

-1

30

190.5

39

102

30.36

79

174

7.086

119

246

2.174

0

32

180.9

40

104

29.15

80

176

6.859

120

248

2.117

1

34

171.9

41

106

28

81

178

6.641

121

250

2.061

2

36

163.3

42

108

26.9

82

180

6.43

122

252

2.007

3

37

155.2

43

109

25.86

83

181

6.228

123

253

1.955

4

39

147.6

44

111

24.85

84

183

6.033

124

255

1.905

5

41

140.4

45

113

23.89

85

185

5.844

125

257

1.856

6

43

133.5

46

115

22.89

86

187

5.663

126

259

1.808

7

45

127.1

47

117

22.1

87

189

5.488

127

261

1.762

8

46

121

48

118

21.26

88

190

5.32

128

262

1.717

9

48

115.2

49

120

20.46

89

192

5.157

129

264

1.674

10

50

109.8

50

122

19.69

90

194

5

130

266

1.632

11

52

104.6

51

124

18.96

91

196

4.849

12

54

99.69

52

126

18.26

92

198

4.703

13

55

95.05

53

127

17.58

93

199

4.562

14

57

90.66

54

129

16.94

94

201

4.426

15

59

86.49

55

131

16.32

95

203

4.294

16

61

82.54

56

133

15.73

96

205

4.167

17

63

78.79

57

135

15.16

97

207

4.045

18

64

75.24

58

136

14.62

98

208

3.927

19

66

71.86

59

138

14.09

99

210

3.812

PRODIGY Technical Manual

63

2.Compressor checking

Measure the resistance value of each winding by using the tester.

Position

Resistance Value

ASN98D22UFZ

ASM135D23UFZ

ATF235D22UMT

Blue - Red

1.57Ω

(20℃/68℉)

1.75Ω

(20℃/68℉)

0.75Ω

(20℃/68℉)

Blue - Black

Red - Blue

Kaysun KAY-26 DN7, KAE-26 DN7, KAY-35 DN7, KAE-35 DN7, KAY-52 DN7 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual