Hisense AUC-18UX4SGAA, AUD-36UX4SAMH, AUC-24UX4SZEA, AUC-36UX4SAEA, AUC-48UX6SPFA Service Manual

DC INVERTER AIR CONDITIONER

SERVICE MANUAL

V:3.0

UNIT:

Hisense Corporation

AUD-18UX4SGKL
AUD-24UX4SZLH
AUD-36UX4SAMH
AUD-48UX6SPHH
AUD-60UX6SPHH

AUC-18UX4SGAA
AUC-24UX4SZEA
AUC-36UX4SAEA
AUC-48UX6SPFA
AUC-60UX6SPFA

AUD-18UX4SZKL1
AUD-24UX4SALH1
AUD-36UX4SAMH1

AUC-18UR4SZAA1
AUC-24UR4SAEA1
AUC-36UR4SAEA1

AUV-18UR4SZA1
AUV-24UR4SAA1
AUV-36UR4SAB1
AUV-48UR6SPC
AU

V

-60UR6SPC

Table of Contents

Page
1．GENERAL 1

2．SPECIFICATION 15
3．OUTLINES AND DIMENSIONS 24

3-1 INDOOR 24
3-2 OUTDOOR 29

4． DIAGRAM&DATA 33

4-1 Refrigerant Flow Diagram 33
4-2MAX. Refrigerant Pipe Length and Height Difference 36
4-3 Electric Diagrams 37
4-4Air flow and ESP Chart Diagrams(for duct type) 39

5．ELECTRICAL DATA 44

5-1 Electric Wiring Diagrams 44
5-2. Electric Control 57
5-3. Dip Switch Setting of Outdoor 66
5-4. Digital Display Switch of Outdoor 67
5-5. Static Pressure Setting(only for duct type) 69
5-6. Ambient Temperature Revise(INDOOR) 71
5-7 Sensor Parameter 72

6．CONTROL MODE 80

6-1 Indoor Control Mode 80
6-2 Outdoor Control Mode 83

7．TROUBLE SHOOTING 86

7-1 Error Codes 81

8．CHECKING COMPONENTS 97

8-1 Check Refrigerant System 97
8-2 Check Parts Unit 99



F

¾

¾

1

8ch

¾¾¾

¾

1.1

Duc

eatures

Save Ins

t

The

Optional

k: optional

1

anged betwe

One

High Effi

c

R41

0

24-hour

T

This

Mute Op

e

The

nois

e

Meeting

V

The

spa

c

Feature

s

t Type

Ai

allation Sp

a

indoor unit

c

Static Press

0Pa /30Pa,

en1-80Pa)

, 4

8

unit, mute

o

iency and

E

0

A can prot

e

imer ON a

n

Timer can

b

ration

excellent fa

n

e

.

arious Inst

a

back-air-inl

e

e.

r Conditi

ce

an be instal

l

ure

24K/36K 50

8

K/60K: 80

P

ptional inst

a

nvironment

ct the envir

o

d OFF

e set to aut

o

design en

a

llation Req

u

t type is us

u

1

oner

ed inside th

e

Pa/80Pa(Fo

a/120Pa st

a

llation meth

o

Friendly Ne

w

nment and

d

matically tu

ble the airfl

o

irements

ally to be a

d

ceiling co

n

r

AUD-24UX

4

tic Pressur

e

d.

Refrigeran

o not harm

n the unit o

n

w to be qui

e

opted acco

r

veniently.

SALH1&AU

D

.

t-R410A

to the ozon

e

or off withi

n

t and smoo

t

ding to the

a

1.G

E

-36UX4SAM

H

layer.

a 24-hour

p

h with mini

m

ctual install

a

NERAL

1，freely

eriod.

um

tion

1.GENERAL

2



The unit is also installed with down-air-inlet type and the noise will increase about 5-6

dB.

¾ Self Recovery of Power Break

When the power supply is recovered after break, all preset are still effective and the

air-conditioner can run according to the original setting.

¾ Fault Self-diagnose Function

When there is something wrong with the air-conditioner，the micro computer could

diagnose the faults, which can be read from the display and is convenient for

maintenance.



C

F

e

¾¾¾¾¾

¾

assette

T

atures

Save Ins

t

The indo

o

High Effi

c

R410A c

a

24-hour

T

This Tim

e

Mute Op

e

The exc

e

Self Rec

o

When th

e

air-condi

t

Fault Sel

f

When th

e

the fault

ype Air

allation Sp

a

r unit can

b

iency and

E

n protect th

imer ON a

n

r can be se

t

ration

llent fan de

s

very of Po

w

power sup

p

ioner can ru

-diagnose

F

re is somet

h

s, which ca

n

Conditio

n

ce

e installed i

n

nvironment

e environm

e

d OFF

to automat

i

ign enable t

er Break

ly is recove

n according

unction

ing wrong

w

be read fro

m

3

er

side the cei

l

Friendly Ne

w

nt and do n

o

cally turn th

e

he airflow to

red after br

e

to the origin

a

ith the air-c

o

the displa

y

ing conveni

e

Refrigeran

t harm to th

unit on or

o

be quiet an

d

ak, all pres

e

l setting.

nditioner, th

and is con

v

ntly.

t-R410A

e ozone lay

e

ff within a 2

4

smooth wi

t

t are still eff

e

e micro co

m

enient for

m

1.G

E

r.

-hour perio

h minimum

n

ctive and t

h

puter could

d

aintenance.

NERAL

d.

oise.

e

iagnose

1.GENERAL

4



Ceiling &Floor Air Conditioner

Features

¾ Save Installation Space

The indoor unit’s thickness is only 230mm,can be installed inside the ceiling conveniently.

¾ Flexible Installation Options

According to the actual installation space,The indoor unit can be installed in the ceiling

or on the floor. One unit, Two installation method.

¾ High Efficiency and Environment Friendly

New Refrigerant-R410A

R410A can protect the environment and do not harm to the ozone layer.

¾ 24-hour Timer ON and OFF

This Timer can be set to automatically turn the unit on or off within a 24-hour period.

¾ Mute Operation

The excellent fan design enable the airflow to be quiet and smooth with minimum noise.

¾ Various Refrigerant Pipe Connect Methods

The refrigerant pipe can be connect from 3 different directions(rear,right or top) .More methods,

more conveniently.

¾ Self Recovery of Power Break

When the power supply is recovered after break, all preset are still effective and the

air-conditioner can run according to the original setting.

1.GENERAL

5



¾ Fault Self-diagnose Function

When there is something wrong with the air-conditioner, the micro computer could diagnose the

faults, which can be read from the display and is convenient for maintenance.

1.GENERAL

6



1.2 Product Lineup

Type Model 18 24 36 48 60

Duct Type AUD- ● ● ● ● ●

Cassette Type AUC- ● ● ● ● ●

Ceiling&Floor

type

AUV- ● ● ● ● ●

1.GENERAL

7



1.3 MODEL IDENTIFICATION

A U C -18 U R 4 S Z A A 1

G:Indoor Unit Indetification

S:Refrigement R410A F:Refrigement R22

4:220V-240V/50HZ/1P 6:380V-415V/50HZ/3P

X: Wire Romote Co ntroller R:W ireless Ro m ote C on troller

Cool Capacity:18x10 Btu/h

Air Conditioner

Unit

K:Outdoor Unit Indetification

serial number

U:DC-Invert Heat Pump Type H:Heat Pump Type C :Cooling Only

Type:D-Duct Type,C-Cassette Type,V-Ceiling&Floor Type,W-Outdoor Unit

3

















































1

D

M

I

O

u

M

I

O

u

.4 Prod

u

uct Typ

odel

ndoor

tdoor

odel

ndoor

tdoor

ct Pic

t

e

ure

AUD-18UX

4

AUD-36UX

4

8

SGKL

SAMH

1.G

E

AUD-24UX4

S

AUD-48UX6

S

AUD-48UX6

S

NERAL

ZLH

PHH
PHH







M

I

O

u

M

I

O

u

odel

ndoor

tdoor

odel

ndoor

tdoor

AUD-18UX

4

AUD-36UX

4

9

SZKL1

SAMH1

1.G

E

AUD-24UX4

S









NERAL

ALH1



C

a

M

I

O

u

M

I

O

u

ssette T

odel

ndoor

tdoor

odel

ndoor

tdoor

ype

AUC-18UX

4

AUC-36UX

4

10

SGAA

SAEA

1.G

E

AUC-24UX4

S

AUC-48UX6

S

AUC-60UX6

S



NERAL

ZEA

PFA
PFA





M

I

O

u





odel

ndoor

tdoor

AUC-18UR

4

11

SZAA1

1.G

E

AUC-24UR4

S

AUC-36UR4

S



NERAL

AEA1
AEA1

1.GENERAL

12



Ceiling &Floor Type

Model AUV-18UR4SZA1 AUV-24UR4SAA1

Indoor

Outdoo

r

Model AUV-36UR4SAB1

AUV-48UR6SPC
AUV-60UR6SPC

Indoor

Outdoo

r









1.GENERAL

13



DISPLAY PANEL:

Cassette Type

18k




24K，36K，48K，60K





























1.GENERAL

14



Ceiling&Floor type





































2.SPECIFICATIONS

15



2.Specifications

DuctType

Model AUD-18UX4SZKL1 AUD-24UX4SALH1 AUD-36UX4SAMH1 AUD-18UX4SGKL AUD-24UX4SZLH AUD-36UX4SAMH AUD-48UX6SPHH AUD-60UX6SPHH

Indoor model AUD-18UX4SKL1 AUD-24UX4SLH1 AUD-36UX4SMH1 AUD-18UX4SKL AUD-24UX4SLH AUD-36UX4SMH AUD-48UX4SHH AUD-60UX4SHH

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ AUW-36W4SA AUW-48U6SP AUW-60U6SP

Power supply

Ph-V-H

z

20V-240V ~/50Hz 380V-415V，3N~/50Hz

Capacity

Cooling

kW

5 7 9.2 5 6.4 10 12.6 17

Btu/h 17,000 23,900 31,400 17,000 21,800 34,100 43,000 58,000

Heating

kW 5.6 8.1 11 5.6 7.25 11.5 15 20.5

Btu/h 19,100 27,600 37,500 19,100 24,700 39,200 51,200 70,000

Dehumidification L/h 1.4 1.8 2.4 1.4 1.8 2.4 3.3 4.5

Rated input

Cooling kW 1.5 2.3 3.05 1.552 1.99 3.11 3.92 5.295

Heating kW 1.6 2.65 3.25 1.55 2 3.19 4.15 5.65

Rated Current

Cooling A 6.8 10.2 13.9 6.9 8.9 13.5 7.5 10.8

Heating A 7.3 11.5 13.1 6.9 8.9 13.9 8 11.3

Max. input kW 2.5 3.6 5.1 2.58 3 5.23 6.2 9.38

Max.Current A 12 15.9 22.5 11.5 13.5 22.78 13 17.7

EER/COP 3.33/3.5 3.04/3.06 3.04/3.06 3.22/3.61 3.22/3.63 3.22/3.61 3.21/3.61 3.21/3.63

SEER/SCOP 5.6/3.8 5.6/3.8 5.1/3.8 / / / / /

Cooling Energy Class A+ A+ A A A A A A

Heating Energy Class A A A A A A A A

Compressor

Model

DA131S1B-28FZ DA230S2C-31M

T

DA250S2C-30MT

DA130S1C-20FZ ATL165SD-C9AU DA250S2C-30M

T

TNB306FPNMC LNB42FSAMC

Type Rotary

Winding resistance Ω 0.55（20℃） 0.73 (at20℃) 055（20℃） 0.95（20℃） 0.59 0.95（20℃） U-V: U-V:

2.SPECIFICATIONS

16



Model AUD-18UX4SZKL1 AUD-24UX4SALH1 AUD-36UX4SAMH1 AUD-18UX4SGKL AUD-24UX4SZLH AUD-36UX4SAMH AUD-48UX6SPHH AUD-60UX6SPHH

Indoor model AUD-18UX4SKL1 AUD-24UX4SLH1 AUD-36UX4SMH1 AUD-18UX4SKL AUD-24UX4SLH AUD-36UX4SMH AUD-48UX4SHH AUD-60UX4SHH

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ AUW-36W4SA AUW-48U6SP AUW-60U6SP

2433;U-W :2433; 2433;U-W :2433;

V-W: 2.304（at

25℃）

V-W: 2.304（at

25℃）

Brand GMCC GMCC GMCC GMCC HIGHLY GMCC

MITSUBISHI

ELECTRIC

MITSUBISHI

ELECTRIC

Fan motor

Indoor Model

YSK110-40-4-A(

HS16)

SIC-70CW-F195

-1

SIC-101CW-F1246

-1

YSK110-40-4-A(

HS16)

Y6S419C56 Y7S423C024 Y7S423C032 Y7S423C032

Outdoor Model ARW4401QH

SIC-71FW-D812

1-1

SIC-71FW-D8121-

1

YDK29-6I-22 YDK70-6H-3 YDK95-6-9043

YDK65-6-9024

YDK65-6-9061

YDK65-6-9024

YDK65-6-9061

Fan Indoor

type

centrifugal fan

Speed

Hi/Med/Low

r.p.m

1130/850/950(10

Pa)

1000/910/810(30

Pa)

1060/980/900(30P

a)

1130/850/950(10

Pa)

1070/990/860(50

Pa)

1150/1070/1020(

50Pa)

1250/1200/1100(

120Pa)

1250/1200/1100(

120Pa)

Fan speed Outdoor

type r.p.m

tube-axial

Speed

Hi/Med/Low

r.p.m

0-810 0-810 0-810 900/750/500 840/780/560 800/640/540 700/600/500 700/600/500

Air circulation

Indoor Hi/Med/Low m³/h 850 1100 1800 850 1100 1700 2000 2000

Outdoor Hi/Med/Low m³/h -- -- -- -- -- -- -- --

Static Pressure(*Default Setting) Pa 10*/30

30*/(1~80

optional)

30*/(1~80

optional))

10*/30 50*/80 50*/80 80*/120 80*/120

Operating control Wireless Remote control-J1-05(E)

Dimensions

Indoor L×W×H mm 1170×447×190 900×720×270 1300×720×270 1170×447×190 900×720×270 1300×720×270 1300×800×350 1300×800×350

Outdoor L×W×H mm 900×300×640 950×340×840 950×340×840 800×260×570 900×300×640 940×340×840 950×340×1386 950×340×1386

Packing

Indoor L×W×H mm 1340×580×236 1170X340X870 1570X340X870 1340×580×236 1170X340X870 1570X340X870 1550X940X410 1550X940X410

Outdoor L×W×H mm 1050×400×700 1110×460×980 1110×460×980 950×365×645 1050×700×400 1110×460×980 1110×460×1530 1110×460×1530

Weight Indoor Net/Gross kg 24/28 32/37 43/51 24/28 32/37 38/43 50/58 50/58

2.SPECIFICATIONS

17



Model AUD-18UX4SZKL1 AUD-24UX4SALH1 AUD-36UX4SAMH1 AUD-18UX4SGKL AUD-24UX4SZLH AUD-36UX4SAMH AUD-48UX6SPHH AUD-60UX6SPHH

Indoor model AUD-18UX4SKL1 AUD-24UX4SLH1 AUD-36UX4SMH1 AUD-18UX4SKL AUD-24UX4SLH AUD-36UX4SMH AUD-48UX4SHH AUD-60UX4SHH

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ AUW-36W4SA AUW-48U6SP AUW-60U6SP

Outdoor Net/Gross kg 45/51 69/73 70/74 35.5/39 50/56 70/74 101/107 108/112

Noise lever

Indoor Hi/Med/Low dB(A)

--/54(SOUND

POWER)

--/61(SOUND

POWER)

--/56(SOUND

POWER)

--/41 43/49 43/51 49/53 49/53

Outdoor Hi/Med/Low dB(A)

--/62(SOUND

POWER)

--/65(SOUND

POWER)

--/70(SOUND

POWER)

--/56 53/58 --/58 --/60 --/60

Refrigerant piping

Gas/Liquid mm

12.7/6.35 15.88/9.52 15.88/9.52 12.7/6.35 15.88/9.52 15.88/9.52 19.05/9.52 19.05/9.52

Max. refrigerant pipe

length

m

20 30 30 20 30 30 50 50

Max. difference in level m 10 20 20 10 15 15 30 30

Connection method Flare

Connection Power wiring mm2 3 core x 1.5 3 core x2.5 3 core x2.5 3 core x1.5 3 core x2.5 3 core x2.5 5 core x2.5 5 core x2.5

wiring Signal wiring mm2 4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75

Refrigerant charge(R410a) k g 1.4 1.68 2.1 1.27 1.5 2.1 3 3.5

Throttle Type EEV EEV EEV EEV EEV EEV EEV EEV

Ambient temp ℃

Cooling -15～48

Heating -10～24









2.SPECIFICATIONS

18



Cassettetype

Model AUC-18UR4SZAA1 AUC-24UR4SAEA 1 AUC-36UR4SAEA1 AUC-18UX4SGAA AUC-24UX4SZEA

AUC-36UX4SAEA AUC-48UX6SPFA AUC-60UX6SPFA

Indoor model AUC-18UR4SAA1 AUC-24UR4SEA1 AUC-36UR4SEA1 AUC-18UX4SAA AUC-24UX4SEA

AUC-36UX4SEA AUC-48UX4SFA AUC-60UX4SFA

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ

AUW-36W4SA AUW-48U6SP AUW-60U6SP

Power supply Ph-V-Hz 20V-240V ~/50Hz 380V-415V，3N~/50Hz

Capacity

Cooling

kW

5（1.2-6.5） 7.0（2.2-8.0） 9.5（3.6～10.5） 5 6.4 10 12 17

Btu/h

17,100(4,100-22

,200)

23,900

（7,500-27,300）

32,400

（12,300-35,800） 17000 21800 34100 41000 58000

Heating

kW

5.6(1.8-7.2） 8.2（2.5-10） 11.0(3.05～13.8) 5.6 7 11.5 15 20

Btu/h

19,100(6,100-24

,600)

28,000

（8,500-34,100）

37,500

（10,400-47,100） 19100 23900 39200 51200 68200

Dehumidification L/h —— —— —— —— —— —— —— ——

Rated input

Cooling kW

1.49（0.40～

2.25）

2.3（0.40～3.6） 3.07(0.4～4.2) 1.552 1.91 3.07 3.72 5.095

Heating kW 1.75(0.38～2.15) 2.73(0.38～3.6) 3.10(0.38～4.2) 1.55 1.92 3.15 3.95 5.45

Rated

Current

Cooling A

6.6 10.1 13.4 6.9 8.5 13.36 6.5 6.5

Heating A 7.8 12.2 13.5 6.89 8.5 13.76 7 7

Max. input

Cooling kW 2.5 3.6 4.25 2.421 2.92 4.55 5.32 8.5

Heating kW 2.5 3.6 4.25 2.581 2.72 4.85 5.92 9.1

Max.Current

Cooling A 12 15.5 20 9.9 13.1 19.83 10.7 10.7

Heating A 12 15.5 20 11.47 12.1 21.13 11.7 11.7

EER/COP 3.36/3.20 3.04/3.0 3.09/3.55 3.22/3.61 3.35/3.64 3.26/3.65 3.39/3.8 3.34/3.67

SEER/SCOP 5.6/3.8 5.6/3.8 5.1/3.8 / / / / /

Cooling Energy Class

A+ A+ A

A A A A A

Heating Energy Class

A A A

A A A A A

2.SPECIFICATIONS

19



Model AUC-18UR4SZAA1 AUC-24UR4SAEA 1 AUC-36UR4SAEA1 AUC-18UX4SGAA AUC-24UX4SZEA

AUC-36UX4SAEA AUC-48UX6SPFA AUC-60UX6SPFA

Indoor model AUC-18UR4SAA1 AUC-24UR4SEA1 AUC-36UR4SEA1 AUC-18UX4SAA AUC-24UX4SEA

AUC-36UX4SEA AUC-48UX4SFA AUC-60UX4SFA

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ

AUW-36W4SA AUW-48U6SP AUW-60U6SP

Compressor

Model

DA131S1B-28FZ DA230S2C-31MT DA250S2C-30M

T

DA130S1C-20FZ ATL165SD-C9A

U

DA250S2C-30MT TNB306FPNMC LNB42FSAMC

Type Rotary

Winding resistance Ω 0.55（20℃） 0.73 (at20℃) 055（20℃） 0.95（20℃） 0.59 0.95（20℃）

U-V:

2433;U-W :2433;

U-V:

2433;U-W :2433;

V-W: 2.304（at 25℃）

V-W: 2.304（at

25℃）

Brand GMCC GMCC GMCC GMCC HIGHLY GMCC

MITSUBISHI

ELECTRIC

MITSUBISHI

ELECTRIC

Fan motor

Indoor

Mode

l

EHDS50AQ ARW5901QH EHDS50AQH YDK95-28-4-B ARW5901QH EHDS50AQH SIC72FW-D8124-2B

SIC72FW-D8124-2

B

Outdoor

Mode

l

ARW4401QH

SIC-71FW-D812

1-1

SIC-71FW-D812

1-1

YDK29-6I-22 YDK70-6H-3 YDK95-6-9043

YDK65-6-9024

YDK65-6-9061

YDK65-6-9024

YDK65-6-9061

Fan Indoor

type

centrifugal fan

Speed

Hi/Med/Low

r.p.m

980/840/720 440/380/370 630/520/460 980/840/720 440/370/280 630/520/460 630/520/460 630/520/460

Fan speed Outdoor

type r.p.m tube-axial

Speed

Hi/Med/Low

r.p.m

0-810 0-810 0-810 900/750/500 840/780/560 800/640/540 700/600/500 700/600/500

Air

circulation

Indoor Hi/Med/Low m³/h 850 1100 1600 850 1100 1600 2000 2400

Outdoor Hi/Med/Low m³/h -- -- -- -- -- -- -- --

Static Pressure(*Default Setting) Pa 0 0 0 0 0 0 0 0

Operating control Wireless Remote control（J1-05)

Dimensions

Indoor L×W×H mm 650×570×270 840×840×248 840×840×248 650×570×270 840×840×248 840×840×248 840×840×298 840×840×298

Outdoor L×W×H mm 900×300×640 950×340×840 950×340×840 800×260×570 900×300×640 940×340×840 950×340×1386 950×340×1386

2.SPECIFICATIONS

20



Model AUC-18UR4SZAA1 AUC-24UR4SAEA 1 AUC-36UR4SAEA1 AUC-18UX4SGAA AUC-24UX4SZEA

AUC-36UX4SAEA AUC-48UX6SPFA AUC-60UX6SPFA

Indoor model AUC-18UR4SAA1 AUC-24UR4SEA1 AUC-36UR4SEA1 AUC-18UX4SAA AUC-24UX4SEA

AUC-36UX4SEA AUC-48UX4SFA AUC-60UX4SFA

Outdoor model AUW-18U4SZ1 AUW-24U4SA1 AUW-36U4SA1 AUW-18U4SG AUW-24U4SZ

AUW-36W4SA AUW-48U6SP AUW-60U6SP

Panel L×W×H mm 650×650×30 950×950×37 950×950×37 650×650×30 950×950×37 950×950×37 950×950×37 950×950×37

Packing

Indoor L×W×H mm

770×750×310 930×930×290 930×930×290 770×750×310 930×930×290 930×930×290 930×930×340 930×930×340

Outdoor L×W×H mm 1050×400×700 1110×460×980 1110×460×980 940×360×640 1050×700×400 1110×460×980 1110×460×1530 1110×460×1530

Panel L×W×H mm 730×730×130 1010×990×95 1010×990×115 730×730×130 1010×990×95 1010×990×95 1010×990×95 1010×990×95

Weight

Indoor Net/Gross kg

21/25.5 24/30 26/32 21/25.5 24/30 26/32 29/35 29/35

Outdoor Net/Gross kg 45/51 69/73 70/74 35.5/39 50/56 70/74 101/107 108/112

Panel Net/Gross kg 2.4/5 6/7.5 6/7.5 2.4/5 6/7.5 6/7.5 6/7.5 6/7.5

Noise lever

Indoor

Low/Hi/sound

power

Db

--/48/58 36/42/53 --/50/61 --/48 36/42 --/50 43/49 43/49

Outdoor

Low/Hi/sound

power

Db 45/50/62 --/58/70 --/58/70 --/56 53/58 --/58 --/60 --/60

Refrigerant

piping

Gas/Liquid mm

12.7/6.35 15.88/9.52 15.88/9.52 12.7/6.35 15.88/9.52 15.88/9.52 19.05/9.52 19.05/9.52

Max. refrigerant pipe length m 20 30 30 20 30 30 50 50

Max. difference in level m 10 20 20 10 15 15 30 30

Connection method Flare

Connection Power wiring mm23 core x1.5 3 core x2.5 3 core x2.5 3 core x1.5 3 core x2.5 3 core x2.5 5 cor e x2.5 5 core x2.5

wiring Signal wiring mm

2

4 core shielded wire x 0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75

Refrigerant charge(R410a) kg 1.4 1.68 2.1 1.27 1.5 2.1 3 3.5

Throttle Type EEV EEV EEV EEV EEV EEV EEV EEV

Ambient temp ℃

Cooling -15～48

Heating -10～24



2.SPECIFICATIONS

21



Ceiling&Floortype

Model AUV-18UR4SZA1 AUV-24UR4SAA1 AUV-36UR4SAB1 AUV-48UR6SPC AUV-60UR6SPC

Power supply Ph-V-Hz

1N,220V-240V/50Hz 3N~,380V-415V/50Hz

Capacity

Cooling

kW

5.0 7.0 9.2 12.6 17.0

Btu/h

17,000 23,900 31,400 43,000 58,000

Heating

kW

5.8 8.6 11.0 15.3 20.5

Btu/h

19,800 29,000 37,500 52,200 70,000

Dehumidification L/h

1.4 1.8 2.4 3.3 4.5

Rated input

Cooling kW

1.55 2.3 3.05 3.92 5.295

Heating kW

1.75 2.77 3.3 4.2 5.65

Rated Current

Cooling A

7.0 10.1 13.9 7.5 10.8

Heating A

8.0 13.0 15.0 8.0 11.3

Max. input kW

2.5 3.6 5.1 6.2 9.38

Max.Current A

12.0 15.9 22.5 13.0 17.7

EER/COP

3.33/3.31 3.04/3.10 3.02/3.33 3.21/3.64 3.21/3.61

SEER/SCOP

5.6/3.8 5.6/3.8 5.1/3.8 / /

Compressor

Model

DA131S1B-28FZ DA230S2C-31MT DA250S2C-30MT TNB306FPNMC LNB42FSAMC

Type

Rotary

Winding resistance Ω

M:2.1，A:2.81 M:1.37，A:1.7

U-V:

2.806;U-W :2.806;

U-V: 2433;U-W :2433; U-V: 2433;U-W :2433;

V-W: 2.651 （at

25℃）

V-W: 2.304（at 25℃） V-W: 2.304（at 25℃）

Brand

GMCC GMCC GMCC MITSUBISHI ELECTRIC

MITSUBISHI

ELECTRIC

Fan motor Indoor Model

YSK110-22-4-A( HS24) SIC-70CW-F1100-6 SIC-70CW-F1140-3 Y7S423C032 Y7S423C032

2.SPECIFICATIONS

22



Model AUV-18UR4SZA1 AUV-24UR4SAA1 AUV-36UR4SAB1 AUV-48UR6SPC AUV-60UR6SPC

Winding

resistance

(at20℃)

M:187A:245,60,33,143 M:209.4;A:245,60,33,143 M:75;A:97.5 M:79.7;A:59.4,20.2,108

M:79.7;A:59.4,20.2,10

8

Outdoor

Model

ARW4401QH SIC-71FW-D8121-1 SIC-71FW-D8121-1

YDK65-6-9024 YDK65-6-9024
YDK65-6-9061 YDK65-6-9061

Winding

resistance

(at20℃)

M:231.5;A:168 M:78;A:36.2,51.5,109.2 M:59.1;A:85.8

M:83;A1:23.4A2:14A1:6

3.5

M:83;A1:23.4A2:14A1:

63.5

Fan Indoor

type

centrifugal fan

Speed

Hi/Med/Low

r.p.m

630/720/850 910/1030/1150 1080/1160/1220 1000/1100/1200 1000/1100/1200

Fan speed Outdoor

type r.p.m

tube-axial

Speed

Hi/Med/Low

r.p.m

0-810 0-810 0-810 500/600/700 500/600/700

Air circulation

Indoor Hi/Med/Low m³/h

800 1100 1600 2000 2000

Outdoor Hi/Med/Low m³/h

-- -- -- -- --

Static Pressure(*Default Setting) Pa

0 0 0 0 0

Operating control

Wireless Remote control-J1-05(E)

Dimensions

Indoor L×W×H mm

990×680×230 990×680×230 1290×680×230 1580×680×230 1580×680×230

Outdoor L×W×H mm

900×300×640 950×340×840 950×340×840 950×340×1386 950×340×1386

Packing

Indoor L×W×H mm

1100×820×350 1100×820×350 1400×820×350 1690×820×350 1690×820×350

Outdoor L×W×H mm

1050×700×400 1110×460×980 1110×460×980 1110×460×1530 1110×460×1530

Weight

Indoor Net/Gross kg

27/33 30/35 37/44 47/54 47/54

Outdoor Net/Gross kg

45/51 69/73 70/74 101/107 108/112

Noise lever

Indoor Hi/Med/Low dB(A)

--/54(SOUND POWER) --/63(SOUND POWER)

--/64(SOUND
POWER)

48/50/53 48/50/53

Outdoor Hi/Med/Low dB(A)

--/62(SOUND POWER) --/65(SOUND POWER) --/70(SOUND --/60 --/60

2.SPECIFICATIONS

23



Model AUV-18UR4SZA1 AUV-24UR4SAA1 AUV-36UR4SAB1 AUV-48UR6SPC AUV-60UR6SPC

POWER)

Refrigerant

piping

Gas/Liquid mm

12.7/6.35 15.88/9.52 15.88/9.52 19.05/9.52 19.05/9.52

Max. refrigerant pipe

length

m

15 30 30 50 50

Max. difference in level m

7.5 15 15

20（outdoor blow：15） 20（outdoor blow：15）

Connection method

Flare

Connection Power wiring mm2

3 core x1.5 3 core x2.5 3 core x2.5 5 core x2.5 5 core x2.5

wiring Signal wiring mm2

4core x0.75 4core x0.75 4core x0.75 4core x0.75 4core x0.75

Refrigerant charge(R410a) kg

1.4 1.68 2.1 3 3.5

Throttle Type

EEV EEV EEV EEV EEV

Ambient temp

℃

Cooling -15～48

Heating -10～24







33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

24

3.OUTLINES AND DIMENSIONS
3-1 INDOOR
Duct type

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

25

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

26

Cassette type
18K

24K,36K

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

27

48K,60K

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

28

Ceiling&Floor Type

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

29

3-2.OUTDOOR
18K(AUW-18U4SG)

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

30

18K（MODEL: AUW-18U4SZ1）
24K(MODEL: AUW-24U4SZ)

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

31

24&36K

（

MODEL: AUW-24U4SA1, AUW-36U4SA1, AUW-36W4SA）

33.. OOUUTTLLIINNEESS AANNDD DDIIMMEENNSSIIOONN

32

48K&60K

（

MODEL: AUW-48U6SP、AUW-60U6SP）

4 DIAGRAM&DATA

33



4. Diagrams&DATA

4.1 Piping Diagrams

18k type



4 DIAGRAM&DATA

34



24k &36K type

Indoor heat exchanger

Indoor

Outdoor

Stop Valve

Coil
temperature
sensor

Accumulator

Ambient
temperature
sensor

Stop Valve

Discharge
temperature
sensor

Discharge
Pressure
Switch

4-Way Valve

Ambient
temperature
sensor

Coil
temperature
sensor

Outdoor
heat
exchanger

Compressor

strainer

strainer

Electronic expansion valve

Defrost
temperature
sensor

Suction
temperature
sensor

4 DIAGRAM&DATA

35



48K&60K

Indoor heat exchanger

Indoor

Outdoor

Stop Valve

Coil
temperature
sensor

Accumulator

Ambient
temperature
sensor

Stop Valve

Discharge
temperature
sensor

Discharge
Pressure
Switch

4-Way Valve

Ambient
temperature
sensor

Coil
temperature
sensor

Outdoor
heat
exchanger

Suction
Pressure
Switch

Compressor

strainer

strainer

Electronic expansion valve

Defrost
temperature
sensor

Suction
temperature
sensor









































4 DIAGRAM&DATA

36



4-2MAX. Refrigerant pipe length and height difference

*Doyourbesttoreducethepipelength.Longpipemaycausecapacityoftheindoorunitincline.



Outdoorunitprecharged

Total refrigerantpipelength

0m~5m

5m～60m

AUW‐18U4SG 1270g 0g

Xg=15g/m × (Totalpipelength(m)‐5)



AUW‐24U4SZ 1500g 0g

AUW-36U4SA

2100g 0g

AUW-18U4SZ1

1400g 0g

AUW-24U4SA1

1680g 0g

Xg=35g/m × (Totalpipelength(m)‐5)

AUW-36U4SA1

2100g 0g

AUW-48U6SP

3000g 0g

AUW-60U6SP

3500g 0g



4 DIAGRAM&DATA

37



4-3ELECTRIC Diagrams



Recommend Wire Size

Model POWER SUPPLY

Power Source

Cable Size

（mm2）

Transmitting Cable

Size

（mm2）

18K 220-240V,50Hz 3×1.5 4×0.75

24K/36K 220-240V,50Hz 3×2.5 4×0.75

48K/60K

380~415V,3N~,50Hz

5×2.5 4×0.75

● Use an ELB (Electric Leakage Breaker). If not used, it will cause an electric shock or a

fire.

● Do not operate the system until all the check points have been cleared.

(A) Check to ensure that the insulution resistance is more than 1 megohm, by measuring

the resistance between ground and the terminal of the electrical parts. If not, do not

operate the system until the electrical leakage is found and repaired.

4 DIAGRAM&DATA

38



(B) Check to ensure that the stop valves of the outdoor unit are fully opened and then start

the system.

● Pay attention to the following items while the system is running.

(A) Do not touch any of the parts by hand at the discharge gas side, since the compressor

chamber and the pipes at the discharge side are heated higher than 90 .℃

(B) DO NOT PUSH THE BUTTON OF THE MAGNETIC SWITCH(ES). It will cause a

serious Accident.

NOTES:

1) Follow local codes and regulations when selecting field wires.

2) The wire sizes marked in the table are selected at the maxim current of the

unit according to the European Standard ,En60 335-1. Use the wires which are

not lighter than the ordinary tough rubber sheathed flexible cord (code

designation H07RN-F) or ordinary polychloroprene sheathed flexible

cord (code designation H07RN-F) .

3) Use a shielded cable for the transmitting circuit and connect it to ground .

4) In the case that power cables are connected in series, add each unit

maximum current and select wires below.

* in the case that current exceeds 63A, do not connect cables in series.

4 DIAGRAM&DATA

39



4-4Air flow and ESP Chart Diagrams(for duct type)

18K





L

M

H

0

5

10

15

20

25

30

35

500 600 700 800 900 1000

ESP

Airflow（m3/h）

18KCurvefor10PaESP

10

15

20

25

30

35

40

45

50

500 600 700 800 900 1000 1100

ESP

Airflow（m3/h）

18KCurvefor30PaESP

4 DIAGRAM&DATA

40



24K







L

M

H

10

20

30

40

50

60

70

80

90

700 800 900 1000 1100 1200 1300 1400

ESP

Airflow（m3/h）

24KCurvefor50PaESP

LM

H

40

50

60

70

80

90

100

110

120

130

600 700 800 900 1000 1100 1200 1300 1400 1500

ESP

Airflow（m3/h）

24KCurvefor80PaESP

4 DIAGRAM&DATA

41



36K(ACMOTOR)





L

M

H

30

40

50

60

70

80

90

900 1100 1300 1500 1700 1900

ESP

Airflow（m3/h）

36KCurvefor50PaESP

L

M

H

50

60

70

80

90

100

110

120

130

800 1000 1200 1400 1600 1800 2000

ESP

Airflow（m3/h）

36KCurvefor80PaESP

4 DIAGRAM&DATA

42



48K





L

MH

50

60

70

80

90

100

110

120

1500 1700 1900 2100 2300 2500

ESP

Airflow（m³/h）

48KCurvefor80PaESP

LMH

90

100

110

120

130

140

150

160

1500 1700 1900 2100 2300 2500

ESP

Airflow（m³/h）

48KCurvefor120PaESP

4 DIAGRAM&DATA

43



60K







L

MH

50

60

70

80

90

100

110

120

1500 1700 1900 2100 2300 2500

ESP

Airflow（m³/h）

60KCurvefor80PaESP

LMH

90

100

110

120

130

140

150

160

1500 1700 1900 2100 2300 2500

ESP

Airflow（m³/h）

60KCurvefor120PaESP

55.. EELLEECCTTRRIICCAALL DDAATTAA

44

5-1.Electrical wiring diagrams
INDOOR UNIT
Duct type
AUD-18UX4SKL,AUD-18UX4SKL1

55.. EELLEECCTTRRIICCAALL DDAATTAA

45

AUD-24UX4SLH,AUD-36UX4SMH

55.. EELLEECCTTRRIICCAALL DDAATTAA

46

AUD-24U4SLH1,AUD-36U4SMH1

55.. EELLEECCTTRRIICCAALL DDAATTAA

47

AUD-48UX4SHH,AUD-60UX4SHH

55.. EELLEECCTTRRIICCAALL DDAATTAA

48

Cassette type
18k

24K ,36K,48K,60K

55.. EELLEECCTTRRIICCAALL DDAATTAA

49

Ceiling&Floor type
18K,48K,60K

24K,36K

55.. EELLEECCTTRRIICCAALL DDAATTAA

50

OUTDOOR UNIT
18K
AUW-18U4SG

55.. EELLEECCTTRRIICCAALL DDAATTAA

51

AUW-18U4SZ1

55.. EELLEECCTTRRIICCAALL DDAATTAA

52

24K
AUW-24U4SZ

55.. EELLEECCTTRRIICCAALL DDAATTAA

53

AUW-24U4SA1

55.. EELLEECCTTRRIICCAALL DDAATTAA

54

36K
AUW-36U4SA

55.. EELLEECCTTRRIICCAALL DDAATTAA

55

AUW-36U4SA1

55.. EELLEECCTTRRIICCAALL DDAATTAA

56

AUW-48U6SP
AUW-60U6SP

55.. EELLEECCTTRRIICCAALL DDAATTAA

57

5-2. Electric control Board

1. Indoor control board
Duct type
18K,48K,60K
&AUD-24UX4SLH, AUD-36UX4SMH

AUD-24UX4SLH1, AUD-36UX4SMH1

55.. EELLEECCTTRRIICCAALL DDAATTAA

58

CASETTE Type
18K

24K,36K,48K,60K

55.. EELLEECCTTRRIICCAALL DDAATTAA

59

Ceiling & Floor type
18k,48k,60k

24k,36k

55.. EELLEECCTTRRIICCAALL DDAATTAA

60

2.Control board for outdoor unit

1) OUTDOOR CONTROL BOARD

AUW-18U4SG

1) CONTROL BOARD（AUW-18U4SG）

CONTROL BOARD（AUW-24U4SZ）

55.. EELLEECCTTRRIICCAALL DDAATTAA

61

CONTROL BOARD（AUW-36U4SA）

AC N IN

AC L IN

Communication SI

Communication N

High pressure switch

Liquid and Gas Sensor

Outdoor/suction/coil Sensor

Discharge Sensor

Electric expansion valve

Overload protection switch

DC+

DC-

IPM power

IPM-SI

4-way valve

AC fan motor N OUT Heater N Earth

Heater L

55.. EELLEECCTTRRIICCAALL DDAATTAA

62

CONTROL BOARD（AUW-48U6SP、AUW-60U6SP）

AC N IN

AC L IN

AC L OUT

Communication SI

Communication N

Discharge Sensor

Suction Sensor

coil/defrost Sensor

Outdoor Sensor

High pressure switch

Low pressure switch

DC+

DC-

4-way valve

AC fan motor

Heater N

Earth

4-way valve

N OUT

Heater L

Electric expansion valve

IPM power

IPM-SI

Heater N

POWER IN

Transformer

Down fan motor

Up fan motor

55.. EELLEECCTTRRIICCAALL DDAATTAA

63

（AUW-18U4SZ1，AUW-24U4SA1、AUW-36U4SA1）

55.. EELLEECCTTRRIICCAALL DDAATTAA

64

IPM Board

IPM Board（AUW-18U4SG）

AC N IN

AC L IN

AC L OUT

Communication SI

Communication N

Discharge Sensor

Suction Sensor

coil/defrost Sensor

Outdoor Sensor

High pressure switch

Low pressure switch

DC+

DC-

4-way valve

Heater N

Earth

N OUT

Heater L

Electric expansion valve

IPM power

IPM-SI

55.. EELLEECCTTRRIICCAALL DDAATTAA

65

To Compressor U

To Compressor V

To Compresso r W

To Electrolytic
Capacitor +

To Electroly tic
Capacitor +

To Main Control
Board

IPM Pow e r

To Electrolytic
Capacitor -

To PFC Induc tor-2

To PFC Inductor-1

AC N IN

AC L IN

(AUW-24U4SZ / AUW-36U4SA)

To M a in C o ntrol
Board

To Compressor U

To Compressor V

To Compressor W

IPM Pow e r

To Ele ctr o lytic
Capac itor -

To Electrolytic
Capacitor +

To Electrolytic
Capacitor +

To PFC
Inductor-2

To PFC
Inductor-1

ac N in

ac L in

（AUW-18U4SZ1、AUW-24U4SA1、AUW-36U4SA1）

55.. EELLEECCTTRRIICCAALL DDAATTAA

66

(AUW-48U6SP、AUW-60U6SP)

-

-

-

-

55.. EELLEECCTTRRIICCAALL DDAATTAA

67

5-3. DIP SWITCH SETTING OF OUTDOOR
AUW-18U4SZ1,AUW-24U4SA1,AUW-36U4SA1,AUW-36W4SA

48K&60K

55.. EELLEECCTTRRIICCAALL DDAATTAA

68

5-4. Digital Display Switch of Outdoor

Digital Display Switch Introduction

It can be used to check outdoor running parameters.

There are 3 buttons on the digital display board：

1）SWITH button：Indoor parameters and outdoor parameters can be select in turn by press it.

P--outdoor unit,H--indoor unit；

2）INCREASE button：Each time it is pressed,the number rises by 1,hold down it,the number will be

rapidly rises；

3）DECREASE button：Each time it is pressed,the number lowers by 1,hold down it,the number will be

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rapidly lowers.
Parameters can be checked as following table below.

Parameter

code

Descriptions

0 Protect Code or Error Code
P.1 Target Frequency
P.2 Driver Frequency
P.4 Outdoor Electronic expansion valve Opening
P.5 Outdoor Electronic expansion valve Target Opening
P.6 Upper DC Motor Revolving Speed
P.8 AC Input Voltage
P.9 Current

P.10 Modular Temperature
P.11 Capacity needed
P.12 Modular Trouble
P.20 Outdoor Ambient Temperature
P.21 Outdoor Coil Temperature
P.22 Outdoor Defrost Temperature
P.23 Suction Temperature
P.24 Discharge Temperature

H.1 Indoor Unit Error
H.2 Indoor Ambient Temperature
H.3 Indoor Coil Temperature
H.4 Indoor Setting Temperature

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5-5. Static Pressure Setting(only for duct type)

CHANGE OF STATIC PRESSURE

The static pressure outside the indoor unit can be chosen .
Models except AUD-24UX4SALH1 & AUD-36UX4SAMH1 :
You can change the static pressure by changing the fan motor terminal which refer to following
Fig.below:

AUD-24UX4SALH1 & AUD-36UX4SAMH1 :
Default static pressure is 30 Pa.
The static pressure can be freely adjusted from 1 Pa to 80 Pa by using specific wire remote
controller(YXE-C01U).
Operation details, please refer to wire remote controller manuals .
If you still have any trouble, please contact local technical service center of our company for
further information.

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5-6.AMBIENT TEMPERATURE REVISE(INDOOR)
when indoor unit highly mounted,because of hot air floatation,cold air sinks,so the ambient
temperature sensed by indoor unit is higher than the actual.Then the ambient temperature need
to be revised.
It can be changed by using specific wire remote controller(YXE-C01U).
Operation details, please refer to wire remote controller manuals .

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5-7. Sensor parameter

1. THE PARAMETER OF OUTDOOR COMPRESSOR DISCHARGE TEMPERATURE SENSOR:
（R

0

=187.25K±6.3%；R

100

=3.77K±2.5K；B0/100=3979K±1%）

T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

-30 908.2603 985.5274 1065.1210 -7.84 7.47

-29 855.3955 927.6043 1001.9150 -7.78 7.42

-28 805.9244 873.4324 924.8368 -7.73 5.56

-27 759.6097 822.7471 887.5944 -7.67 7.31

-26 716.2320 775.3041 835.9165 -7.62 7.25

-25 675.5881 730.8775 787.5529 -7.56 7.20

-24 637.4902 689.2583 742.2720 -7.51 7.14

-23 601.7645 650.2533 699.8601 -7.46 7.09

-22 568.2499 613.6835 660.1191 -7.40 7.03

-21 536.7970 579.3832 622.8658 -7.35 6.98

-20 507.2676 547.1989 587.9307 -7.30 6.93

-19 497.5332 516.9882 555.1565 -3.76 6.88

-18 453.4748 488.6192 524.3977 -7.19 6.82

-17 428.9819 461.9693 495.5191 -7.14 6.77

-16 405.9517 436.9251 486.3954 -7.09 10.17

-15 384.2888 413.3808 442.9105 -7.04 6.67

-14 363.9047 391.2386 418.9563 -6.99 6.62

-13 344.7169 370.4072 396.4325 -6.94 6.56

-12 326.6497 350.8019 375.2461 -6.88 6.51

-11 309.6286 332.3441 355.3104 -6.83 6.46

-10 293.5903 314.9620 336.5448 -6.79 6.41

-9 278.4719 298.5822 318.3744 -6.74 6.22

-8 264.2156 283.1464 302.2294 -6.69 6.31

-7 250.7678 268.5936 286.5448 -6.64 6.26

-6 238.0783 254.8686 271.7603 -6.59 6.22

-5 226.1003 241.9200 257.8193 -6.54 6.17

-4 214.7903 229.6997 244.6593 -6.49 6.11

-3 204.1073 218.1630 232.2612 -6.44 6.07

-2 194.0135 207.2681 220.5495 -6.39 6.02

-1 184.4732 196.9759 209.4913 -6.35 5.97
0 175.4533 187.2500 199.0468 -6.30 5.93
1 166.8952 178.0255 189.1529 -6.25 5.88
2 158.8023 169.3067 179.8058 -6.20 5.84
3 151.1467 161.0633 170.9724 -6.16 5.80
4 143.9026 153.2667 162.6216 -6.11 5.75
5 137.0455 145.8905 154.7246 -6.06 5.71
6 130.5528 138.9097 147.2544 -6.02 5.67
7 124.4033 132.3011 140.1856 -5.97 5.62
8 118.5769 126.0429 133.4946 -5.92 5.58
9 113.0550 120.1146 127.1591 -5.88 5.54

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T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

10 107.8202 114.4973 121.1586 -5.83 5.50
11 102.8560 109.1728 115.4734 -5.79 5.46
12 98.1470 104.1246 110.0855 -5.74 5.41
13 93.6787 99.3367 104.9778 -5.70 5.37
14 89.4378 94.7946 100.1342 -5.65 5.33
15 85.4114 90.4842 95.5398 -5.61 5.29
16 81.5875 86.3926 91.1805 -5.56 5.25
17 77.9551 82.5076 87.0430 -5.52 5.21
18 74.5034 78.8177 83.1150 -5.47 5.17
19 71.2227 75.3122 79.3848 -5.43 5.13
20 68.1036 71.9808 75.8414 -5.39 5.09
21 65.1373 68.8141 72.4746 -5.34 5.05
22 62.3155 65.8032 69.2746 -5.30 5.01
23 59.6306 62.9395 66.2324 -5.26 4.97
24 57.0752 60.2152 63.3395 -5.21 4.93
25 54.6424 57.6227 60.5877 -5.17 4.89
26 52.3258 55.1551 57.9695 -5.13 4.85
27 50.1192 52.8058 55.4778 -5.09 4.82
28 48.0168 50.5684 53.1058 -5.05 4.78
29 46.0133 48.4371 50.8472 -5.00 4.74
30 44.1034 46.4046 48.6960 -4.96 4.71
31 42.2825 44.4711 46.6466 -4.92 4.66
32 40.5458 42.6261 44.6937 -4.88 4.63
33 38.8891 40.8668 42.8323 -4.84 4.59
34 37.3084 39.1890 41.0576 -4.80 4.55
35 35.7998 37.5883 39.3653 -4.76 4.51
36 34.3596 36.0609 37.7511 -4.72 4.48
37 32.9844 34.6030 36.2109 -4.68 4.44
38 31.6710 33.2113 34.7412 -4.64 4.40
39 30.4164 31.8823 33.3383 -4.60 4.37
40 29.2176 30.6130 31.9988 -4.56 4.33
41 28.0718 29.4004 30.7197 -4.52 4.29
42 26.9765 28.2417 29.4979 -4.48 4.26
43 25.9293 27.1342 28.3306 -4.44 4.22
44 24.9277 26.0755 27.2150 -4.40 4.19
45 23.9697 25.0632 26.1488 -4.36 4.15
46 23.0530 24.0950 25.1293 -4.32 4.12
47 22.1757 23.1688 24.1545 -4.29 4.08
48 21.3360 22.2826 23.2221 -4.25 4.05
49 20.5321 21.4345 22.3301 -4.21 4.01
50 19.7623 20.6226 21.4766 -4.17 3.98
51 19.0261 19.8468 20.6612 -4.14 3.94
52 18.3211 19.1040 19.8808 -4.10 3.91

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T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

53 17.6458 18.3926 19.1338 -4.06 3.87
54 16.9986 17.7113 18.4185 -4.02 3.84
55 16.3784 17.0537 17.7335 -3.96 3.83
56 15.7839 16.4332 17.0774 -3.95 3.77
57 15.2139 15.8338 16.4488 -3.92 3.74
58 14.6673 15.2592 15.8464 -3.88 3.71
59 14.1430 14.7083 15.2690 -3.84 3.67
60 13.6400 14.1799 14.7154 -3.81 3.64
61 13.1573 13.6730 14.1846 -3.77 3.61
62 12.6941 13.1868 13.6756 -3.74 3.57
63 12.2494 12.7202 13.1872 -3.70 3.54
64 11.8224 12.2723 12.7186 -3.67 3.51
65 11.4124 11.8424 12.2690 -3.63 3.48
66 11.0185 11.4295 11.8373 -3.60 3.45
67 10.6401 11.0331 11.4230 -3.56 3.41
68 10.2765 10.6522 11.0251 -3.53 3.38
69 9.9271 10.2863 10.6429 -3.49 3.35
70 9.5912 9.9348 10.2756 -3.46 3.32
71 9.2682 9.5968 9.9231 -3.42 3.29
72 8.9576 9.2720 9.5841 -3.39 3.26
73 8.6589 8.9597 9.2583 -3.36 3.23
74 8.3716 8.6594 8.9451 -3.32 3.19
75 8.0951 8.3705 8.6440 -3.29 3.16
76 7.8290 8.0926 8.3544 -3.26 3.13
77 7.5730 7.8252 8.0758 -3.22 3.10
78 7.3264 7.5679 7.8078 -3.19 3.07
79 7.0891 7.3202 7.5499 -3.16 3.04
80 6.8605 7.0818 7.3018 -3.12 3.01
81 6.6403 6.8522 7.0629 -3.09 2.98
82 6.4282 6.6311 6.8329 -3.06 2.95
83 6.2239 6.4182 6.6115 -3.03 2.92
84 6.0269 6.2131 6.3982 -3.00 2.89
85 5.8371 6.0154 6.1928 -2.96 2.86
86 5.6542 5.8249 5.9949 -2.93 2.84
87 5.4777 5.6413 5.8042 -2.90 2.81
88 5.3076 5.4644 5.6205 -2.87 2.78
89 5.1435 5.2937 5.4433 -2.84 2.75
90 4.9853 5.1292 5.2726 -2.81 2.72
91 4.8326 4.9705 5.1079 -2.77 2.69
92 4.6852 4.8174 4.9492 -2.74 2.66
93 4.5430 4.6697 4.7960 -2.71 2.63
94 4.4058 4.5272 4.6483 -2.68 2.61
95 4.2733 4.3896 4.5058 -2.65 2.58

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T [ ℃ ] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

96 4.1453 4.2568 4.3683 -2.62 2.55
97 4.0218 4.1287 4.2355 -2.59 2.52
98 3.9024 4.0049 4.1074 -2.56 2.50

99 3.7872 3.8854 3.9837 -2.53 2.47
100 3.6758 3.7700 3.8643 -2.50 2.44
101 3.5661 3.6585 3.7512 -2.53 2.47
102 3.4601 3.5509 3.6419 -2.56 2.50
103 3.3577 3.4468 3.5362 -2.59 2.53
104 3.2588 3.3463 3.4341 -2.61 2.56
105 3.1632 3.2491 3.3353 -2.64 2.58
106 3.0708 3.1551 3.2398 -2.67 2.61
107 2.9816 3.0643 3.1475 -2.70 2.64
108 2.8953 2.9765 3.0582 -2.73 2.67
109 2.8118 2.8915 2.9717 -2.76 2.70
110 2.7311 2.8093 2.8881 -2.78 2.73
111 2.6531 2.7299 2.8072 -2.81 2.75
112 2.5776 2.6530 2.7289 -2.84 2.78
113 2.5046 2.5785 2.6531 -2.87 2.81
114 2.4340 2.5065 2.5798 -2.89 2.84
115 2.3656 2.4368 2.5087 -2.92 2.87
116 2.2995 2.3693 2.4400 -2.95 2.90
117 2.2354 2.3040 2.3733 -2.98 2.92
118 2.1734 2.2407 2.3088 -3.00 2.95
119 2.1134 2.1795 2.2463 -3.03 2.97
120 2.0553 2.1201 2.1858 -3.06 3.01
121 1.9991 2.0626 2.1271 -3.08 3.03
122 1.9446 2.0070 2.0702 -3.11 3.05
123 1.8918 1.9530 2.0151 -3.13 3.08
124 1.8406 1.9007 1.9617 -3.16 3.11
125 1.7911 1.8500 1.9099 -3.18 3.14
126 1.7430 1.8009 1.8597 -3.22 3.16
127 1.6965 1.7533 1.8110 -3.24 3.19
128 1.6514 1.7071 1.7638 -3.26 3.21
129 1.6076 1.6623 1.7180 -3.29 3.24
130 1.5652 1.6189 1.6736 -3.32 3.27

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2. THE PARAMETER OF THE OTHER SENSOR IN INDOOR AND OUTDOOR UNIT：（R0=15K±2%；
B0/100=3450K±2%）

T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

-30 60.78 64.77 68.99 -6.16 6.12

-29 57.75 61.36 65.16 -5.88 5.83

-28 54.89 58.15 61.58 -5.61 5.57

-27 52.19 55.14 58.23 -5.35 5.31

-26 49.63 52.30 55.08 -5.11 5.05

-25 47.21 49.62 52.13 -4.86 4.81

-24 44.92 47.10 49.37 -4.63 4.60

-23 42.76 44.73 46.78 -4.40 4.38

-22 40.71 42.49 44.34 -4.19 4.17

-21 38.77 40.38 42.05 -3.99 3.97

-20 36.93 38.39 39.90 -3.80 3.78

-19 35.18 36.51 37.87 -3.64 3.59

-18 33.53 34.74 35.97 -3.48 3.42

-17 31.96 33.06 34.17 -3.33 3.25

-16 30.48 31.47 32.49 -3.15 3.14

-15 29.07 29.97 30.89 -3.00 2.98

-14 27.73 28.56 29.39 -2.91 2.82

-13 26.46 27.22 27.98 -2.79 2.72

-12 25.26 25.95 26.64 -2.66 2.59

-11 24.11 24.75 25.38 -2.59 2.48

-10 23.03 23.61 24.19 -2.46 2.40

-9 21.99 22.53 23.06 -2.40 2.30

-8 21.01 21.51 22.00 -2.32 2.23

-7 20.08 20.54 20.99 -2.24 2.14

-6 19.19 19.62 20.04 -2.19 2.10

-5 18.35 18.74 19.14 -2.08 2.09

-4 17.55 17.92 18.29 -2.06 2.02

-3 16.78 17.13 17.48 -2.04 2.00

-2 16.06 16.38 16.71 -1.95 1.97

-1 15.36 15.67 15.98 -1.98 1.94

0 14.70 15.00 15.29 -2.00 1.90
1 14.08 14.36 14.64 -1.95 1.91
2 13.48 13.75 14.02 -1.96 1.93
3 12.91 13.17 13.43 -1.97 1.94
4 12.36 12.62 12.87 -2.06 1.94
5 11.85 12.09 12.34 -1.99 2.03
6 11.35 11.59 11.83 -2.07 2.03
7 10.88 11.11 11.35 -2.07 2.11
8 10.43 10.66 10.89 -2.16 2.11
9 9.999 10.230 10.450 -2.26 2.11

10 9.590 9.816 10.040 -2.30 2.23

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T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

11 9.199 9.422 9.647 -2.37 2.33
12 8.826 9.047 9.269 -2.44 2.40
13 8.470 8.689 8.910 -2.52 2.48
14 8.129 8.347 8.567 -2.61 2.57
15 7.804 8.021 8.240 -2.71 2.66
16 7.493 7.709 7.928 -2.80 2.76
17 7.196 7.412 7.630 -2.91 2.86
18 6.912 7.127 7.346 -3.02 2.98
19 6.640 6.855 7.074 -3.14 3.10
20 6.381 6.595 6.815 -3.24 3.23
21 6.132 6.347 6.567 -3.39 3.35
22 5.894 6.109 6.330 -3.52 3.49
23 5.667 5.882 6.103 -3.66 3.62
24 5.449 5.664 5.886 -3.80 3.77
25 5.240 5.456 5.678 -3.96 3.91
26 5.048 5.260 5.478 -4.03 3.98
27 4.864 5.072 5.286 -4.10 4.05
28 4.687 4.891 5.101 -4.17 4.12
29 4.517 4.717 4.924 -4.24 4.20
30 4.355 4.550 4.753 -4.29 4.27
31 4.198 4.390 4.589 -4.37 4.34
32 4.048 4.236 4.431 -4.44 4.40
33 3.904 4.089 4.280 -4.52 4.46
34 3.766 3.946 4.134 -4.56 4.55
35 3.663 3.810 3.994 -3.86 4.61
36 3.506 3.679 3.859 -4.70 4.66
37 3.383 3.552 3.729 -4.76 4.75
38 3.265 3.431 3.604 -4.84 4.80
39 3.152 3.314 3.484 -4.89 4.88
40 3.043 3.202 3.368 -4.97 4.93
41 2.938 3.094 3.257 -5.04 5.00
42 2.838 2.990 3.149 -5.08 5.05
43 2.741 2.890 3.046 -5.16 5.12
44 2.648 2.793 2.946 -5.19 5.19
45 2.558 2.701 2.850 -5.29 5.23
46 2.472 2.611 2.758 -5.32 5.33
47 2.389 2.525 2.669 -5.39 5.40
48 2.309 2.443 2.583 -5.49 5.42
49 2.232 2.363 2.500 -5.54 5.48
50 2.158 2.286 2.421 -5.60 5.58
51 2.087 2.212 2.344 -5.65 5.63
52 2.018 2.140 2.269 -5.70 5.69
53 1.952 2.072 2.198 -5.79 5.73

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T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

54 1.888 2.005 2.129 -5.84 5.82
55 1.827 1.941 2.062 -5.87 5.87
56 1.767 1.880 1.998 -6.01 5.91
57 1.710 1.820 1.936 -6.04 5.99
58 1.655 1.763 1.876 -6.13 6.02
59 1.602 1.707 1.818 -6.15 6.11
60 1.551 1.654 1.762 -6.23 6.13
61 1.502 1.602 1.709 -6.24 6.26
62 1.452 1.553 1.657 -6.50 6.28
63 1.409 1.505 1.606 -6.38 6.29
64 1.364 1.458 1.558 -6.45 6.42
65 1.322 1.413 1.511 -6.44 6.49
66 1.280 1.370 1.466 -6.57 6.55
67 1.241 1.328 1.422 -6.55 6.61
68 1.202 1.288 1.379 -6.68 6.60
69 1.165 1.249 1.339 -6.73 6.72
70 1.129 1.211 1.299 -6.77 6.77
71 1.095 1.175 1.261 -6.81 6.82
72 1.061 1.140 1.224 -6.93 6.86
73 1.029 1.106 1.188 -6.96 6.90
74 0.9977 1.073 1.153 -7.02 6.94
75 0.9676 1.041 1.120 -7.05 7.05
76 0.9385 1.011 1.088 -7.17 7.08
77 0.9104 0.9810 1.056 -7.20 7.10
78 0.8833 0.9523 1.026 -7.25 7.18
79 0.8570 0.9246 0.9971 -7.31 7.27
80 0.8316 0.8977 0.9687 -7.36 7.33
81 0.8071 0.8717 0.9412 -7.41 7.38
82 0.7834 0.8466 0.9146 -7.47 7.43
83 0.7604 0.8223 0.8888 -7.53 7.48
84 0.7382 0.7987 0.8639 -7.57 7.55
85 0.7167 0.7759 0.8397 -7.63 7.60
86 0.6958 0.7537 0.8161 -7.68 7.65
87 0.6755 0.7322 0.7933 -7.74 7.70
88 0.6560 0.7114 0.7712 -7.79 7.75
89 0.6371 0.6913 0.7498 -7.84 7.80
90 0.6188 0.6718 0.7291 -7.89 7.86
91 0.6011 0.6530 0.7051 -7.95 7.39
92 0.5840 0.6348 0.6897 -8.00 7.96
93 0.5674 0.6171 0.6709 -8.05 8.02
94 0.5514 0.6000 0.6527 -8.10 8.07
95 0.5359 0.5835 0.6350 -8.16 8.11
96 0.5209 0.5675 0.6179 -8.21 8.16

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T [℃] Rmin [ KΩ ] Rnom [ KΩ ] Rmax [ KΩ ]

DR(MIN)% DR(MAX)%

97 0.5064 0.5519 0.6014 -8.24 8.23
98 0.4923 0.5369 0.5853 -8.31 8.27

99 0.4787 0.5224 0.5698 -8.37 8.32
100 0.4655 0.5083 0.5547 -8.42 8.36
101 0.4528 0.4946 0.5401 -8.45 8.42
102 0.4404 0.4814 0.5259 -8.52 8.46
103 0.4284 0.4685 0.5121 -8.56 8.51
104 0.4168 0.4561 0.4988 -8.62 8.56
105 0.4056 0.4440 0.4859 -8.65 8.62
106 0.3947 0.4323 0.4733 -8.70 8.66
107 0.3841 0.4210 0.4611 -8.76 8.70
108 0.3739 0.4100 0.4493 -8.80 8.75
109 0.3640 0.3993 0.4379 -8.84 8.81
110 0.3544 0.3890 0.4267 -8.89 8.84
111 0.3450 0.3789 0.4159 -8.95 8.90
112 0.3360 0.3692 0.4055 -8.99 8.95
113 0.3272 0.3597 0.3953 -9.04 9.01
114 0.3187 0.3505 0.3854 -9.07 9.06
115 0.3104 0.3416 0.3758 -9.13 9.10
116 0.3024 0.3330 0.3665 -9.19 9.14
117 0.2947 0.3246 0.3574 -9.21 9.18
118 0.2871 0.3164 0.3468 -9.26 8.77
119 0.2798 0.3085 0.3401 -9.30 9.29
120 0.2727 0.3008 0.33 -9.34 9.34

66.. CCOONNTTRROOLL MMOODDEEL

L

80

6-1 Indoor control mode

1.Major general technical parameters
1 Conditionings for operation: Ambient temperatures: (-15 - +45 ℃),

relative humidity (45 - 85%).
2 Remote receiver distance: 8 m.
3 Remote receiver angle: Less than 80 degrees.

4 Temperature control accuracy: ±1℃.
5 Time error: Less than 1%.

6 The power supply for the air conditioner ：
18k&24k&36K:

a.c 220V～240V, 50Hz, with its fluctuation in the range of (198V – 253 V).
48K&60K:

AC 380V-415V 3N～/50Hz, with its fluctuation in the range of (305V-438V).

2. Functions of the controller
Control function

3.1 Emergency switch
Press the emergency button can realize the starting or closing Machine, starting up

according to the automatic mode of operation.

3.2 Operator-machine communication
Air conditioning and remote controller is provided with a temperature sensor. The

remote controller on the temperature sensor to detect the default settings of room
temperature at room temperature. If the indoor control unit for long time have not received
remote control signal, will automatically switch to the air conditioner body temperature
sensor.

3.3 Timer function

1. Timer on: When set to start in a time by the remote controller, the air conditioner starts
in the timer on condition. When the set time is up, the air conditioner will turn on and
operates in the preset conditions after receiving a signal from the remote controller. If the air

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conditioner has not received a signal from the remote controller when the set time is up, it
will automatically start and operate in the preset conditions.

2. Timer off: When set to stop in a set time by the remote controller, the air conditioner
will start in the timer off condition. When the set time is up, the air conditioner will turn off
after receiving a signal from the remote controller. If the air conditioner has not received a
signal from the remote controller when the set time is up, it will turn off automatically.

3. Neither the turning on nor turning off operation will cancel the timer function。

3.4 Sleep

1. In the heating, cooling or dehumidifying mode, press the “Sleep” button on the remote
controller to start or cancel the sleep function in turn, and at the same time the sleep icon on
the display screen will be on or off accordingly.

2. In the heating mode, the set temperature will decrease automatically after the sleep
function is started.

3. In the cooling mode, the set temperature will rise automatically after the sleep function
is started.

4. In default, the setting is to cancel the sleep function. Turning off the unit will also
cancel the sleep function.

3.5 High efficient run function

In Cool, Dehumidification, Fan mode, press the "SUPER " to enter the refrigeration mode,
set the temperature automatically adjust to 18℃; the Fan speed is powerful speed;
frequency of high frequency operation.

In the heating mode, powerful function is invalid for H1 wireless remote controller.

3.6 mute function (only for H1 wireless remote controller)

In the indoor machine operation mode，You may turn on mute function and turn off mute
function by mute key, The air conditioner will run by mute fan speed in mute mode

3.7 prevent cooling wind mode

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In the heating-run, to prevent the indoor fan from blowing cold air, the indoor fan will stop
or run slowly until the coil is warmth.

3.8 blow waste heating and waste cooling function

The heating mode, remote shutdown, such as indoor heat exchanger temperature is
higher, the wind blowing out opportunities continue to run the waste heat.

Cool and dehumidification mode , after the compressor close, indoor machine will

continue to set the speed of operation for a period of time.

3.9 automatically model

This model does not automatically model function, emergency button cannot set the
automatic mode of operation, can use the emergency switch shutdown, remote setting the
automatic mode of indoor machine with remote signal.

3.10 Dehumidifying method:

Remote control setting dehumidifying mode, indoor machine forced to run at low
speed（high power key or a strong bond also maintain a low wind speed）, the outdoor
machine according to the refrigeration mode operation.

3.11 Fault display

If the product operation failure, outdoor and indoor display control panel lights will quote
fault.

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6-2 Outdoor mode control

Summarization

1.1

18k、24k、36K

1. Voltage scale: 176V～253V，50Hz

2. Storage temperature scale: -40℃～85℃

3. Storage humidity scale: PH30％～PH95％

4. Working temperature:-20℃～85℃

5. accuracy for temperature control： ±0.5℃

1.2

48 k、60k

1. Voltage scale: 305V～438V，50Hz

2. Storage temperature scale: -40℃～85℃

3. Storage humidity scale: PH30％～PH95％

4. Working temperature:-20℃～85℃

5. accuracy for temperature control： ±0.5℃

2．Control function

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2.1Cooling Anti-freeze Protection

To prevent indoor air conditioner evaporator temperature is too low, the indoor coil
sensor for real time detection of evaporator. If the indoor coil temperature is too low, the
compressor will protect.

2.2 Overload Protection

Air can heat exchanger temperature sensor for monitoring, when the sensor when

the temperature is too high, the compressor will be automatic protection

2.3 Exhaust temperature protection

To prevent deterioration due to high exhaust temperature of compressor, the
machine will realize the real-time detection of the temperature of exhaust gas. If the
temperature is too high compressor automatic protection

2.4 Oil-return Control

When the compressor runs for a long time low frequencies, control system will start

the return oil program. The system in the oil return to the compressor.

2.5Operation Mode

Air conditioning mode is the operation mode set by users through remote controller,

four modes are available: cooling, heating, dehumidification, as well as fan mode.

2.6 Four-way Valve Control

Four-way valve of the outdoor machine shuts down when cooling and defrosting
but starts when heating. During the heating process, the four way valve to stop working for a
period of time after compressor disconnect.

2.7 Start-up Protection:

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To prevent compressor from restart frequently in the condition that system
pressure has not been completely balanced, it can’t be restarted within 3 minutes.

2.8 Pressure Protection:

When the pressure increases to a preset value, the pressure switch will

automatically protect. Compressor will stop and report the fault code protection.

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7-1- Error code

When the air conditioner failure occurs, the fault code will displays on outdoor control

board , wire remote controller or display panel.

1. INDOOR UNINT FAULT CODE DISPLAY

WALL MOUNTED TYPE

Run the air-conditioner by wireless remote controller , continue pressing

the“SLEEP ”button for 4 times, fault codes will flashing rapidly on the LCD . If no fault ,"00"
will display.

“ER”shows indoor display panel Communication fault with indoor unit control board .

FLOOR STANDING TYPE

In the case of no button-locked,continue pressing “CLOCK”button for 8 times ,fault
codes will display on the LCD for 10 seconds,automatically disappears after 10seconds.

Continue pressing “SLEEP”button of wireless remote controller for 8 times ,fault codes
will display on the LCD for 10 seconds,automatically disappears after 10seconds.

Check indoor unit control board---FAILURE LAMP

LED3 and LED2 indicates fault codes: LED2 indicate ten fault code, LED3 indicate bits
fault code (as shown fig. below).

“ER”shows indoor display panel Communication fault with indoor unit control board

LED2 and LED3 are failure indicate

lamps，

LED2 indicate fault code ten digit

number, LED3 indicate single digit

number code

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DUCT TYPE AND CASSETTE TYPE

(1) ERROR CODES INDICATED BY WIRE REMOTE CONTROLLER(see fig. below)

FIG.2 ERROR CODE DISPLAY ON WIRE REMOT CONTROLLER

（2）WITH DISPLAY PANEL(CAS SETTE type and CEILING &FLOOR type)

Lamp RUN(LED2 ,red) and Lamp DEFROST（LED5 ,green）flashing，Lamp RUN display

fault code ten digit number, lamp DEFROST display fault code single digit number (as
shown fig. below).

For example，fault code 36： led RUN & defrost flash 3 times at the same time, and led
DEFROST continue flash 3 times, reports No. 36 fault.

When failure occurs, this lamp light ON.

This number shows ERROR CODE.

When display“FE” ,shows that the wire controller

can’t receive the signals of indoor unit control

board ,please check communication wires.

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LED FALSH CONTROL：flash 300mS(T1)，off 300mS(T2)，after 2000mS(T3)fault code

repeat displays. (as shown below)

T1 T2 T3

Fig.2 LED FALSH CONTROL

3.Duct type indoor units of VRF---FAULT CODE DISPLAY BY INDOOR BOARD

LED2 and LED5 are failure indicate

lamps，

LED2(RED) indicate fault code ten

digit number, LED5(GREEN)

indicate single digit number code

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2.OUTDOOR UNINT FAULT CODE DISPLAY

（1） ON/OFF UNITARY TYPE（equipped with outdoor control box）

Fault code display by indicate lamps of outdoor control board.

LED FALSH CONTROL：flash 300mS(T1)，off 300mS(T2)，after 900mS(T3)fault

code repeat displays. (as shown below)

T1 T2 T3

（ 2 ） INVERTER UNITARY AIR CONDITONER , MULTI-SPLIT TYPE AIR
CONDITONER&VRF：

Fault code will display on digital indication board.

 VRF：

Indoor unit can indicate both indoor failure and outdoor failure ,but outdoor only
indicate outdoor’s.

LED2-fault code lamp

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3.Fault code display ( Driver Board )

Fault code display by indicate lamps of outdoor driver board.

LED FALSH CONTROL：flash 200mS(T1)，off 200mS(T2)，after 900mS(T3)fault

code repeat displays. (as shown below)

T1 T2 T3

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The following is the fault code table of outdoor.

Fault

code

Fault description Fault description REMARKS

1

Outdoor environment temperature

sensor fault

Outdoor environment

temperature sensor short

circuit or open circuit

2

The outdoor coil sensor fault

The outdoor coil temperature

sensor short circuit or open circuit

3 Current protective device

4

EEprom Data error EEprom Data error or EE chip fault

5

Refrigeration and freezing or thermal overload

protection

Refrigeration indoor coil

temperature is too low or heating

the indoor coil temperature too high

6

AC motor fault

7

Indoor and outdoor communication fault

Outdoor continuously for 2 minutes

without receipt of indoor

communication data

8 Phase current imbalance

Application of three-phase

power supply models

9

Current U phase

Application of three-phase

power supply models

10

Current V phase

Application of three-phase

power supply models

11

Sequence error

Three phase power supply wiring

line sequence error

Application of

three-phase power

supply models

12

Phase detection phase

Application of

three-phase power

supply models

13

Compressor overheat protection device

Compressor overheating protector

tripping

14

High voltage switch motor protection/Pressure

shutdown protection

Too high system pressure leads to

high pressure switch tripping or

pressure sensors to detect the

pressure too high to achieve

shutdown protection pressure

Were applied to have high

pressure switch or a

pressure sensor type

15

Low voltage switch protection/Low pressure

protection shutdown

System low pressure causing low

pressure switch tripping or pressure

sensors to detect the pressure is too

low to achieve the shutdown

Were applied to the low

pressure switch or a

pressure sensor type

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Fault

code

Fault description Fault description REMARKS

protection pressure

16

Refrigeration overload protection

The outdoor coil temperature is too

high to reach refrigeration

temperature shutdown protection

17

Exhaust temperature sensor fault

Exhaust temperature sensor short

circuit or open circuit

18

AC voltage of high and low voltage protection

/ fault

Power input AC voltage is too low or

too high

MUTI-SPLIT TYPE

ONLY

19

Intake air temperature sensor fault

Exhaust temperature sensor short

circuit or open circuit

20

Condenser entrance temperature sensor fault

Condenser entrance temperature

sensor short circuit or open circuit

21

The outlet of the condenser temperature

sensor fault

The outlet of the condenser

temperature sensor short circuit or

open circuit

22

The defrosting sensor fault

The outlet of the condenser

temperature sensor short circuit or

open circuit

23

Expansion valve A tube sensor fault

Expansion valve A tube sensor

short circuit or open circuit

FOR

MUTI-SPLIT&Inverter

unitary types

24

Expansion valve B tube sensor fault

Expansion valve B tube sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

25

Expansion valve C tube sensor fault

Expansion valve C tube sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

26

Expansion valve D tube sensor fault

Expansion valve D tube sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

27

Expansion valve A thick pipe sensor fault

Expansion valve A thick pipe sensor

short circuit or open circuit

FOR MUTI-SPLIT

&inverter unitary

types

28

Expansion valve B thick pipe sensor fault

Expansion valve B thick pipe sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

29

Expansion valve C thick pipe sensor fault

Expansion valve C thick pipe sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

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Fault

code

Fault description Fault description REMARKS

30

Expansion valve D thick pipe sensor fault

Expansion valve D thick pipe sensor

short circuit or open circuit

FOR MUTI-SPLIT

outdoor

31 High discharge pressure fault VRF outdoor

32 Low suction pressure fault

VRF outdoor

41 Current sensor fault

Application of

three-phase power

supply ON/OFF

TYPES

42

Voltage sensor fault

43

H Pressure sensor fault

VRF

44

L Pressure sensor fault

45

IPM fault

46

IPM Communication fault

47

Too high exhaust temperature shutdown

48

Outdoor DC fan fault

49

Outdoor DC fan fault

90

Forced expansion valve

91

IPM Temperature rise too high downtime

92 Compression ratio is too large to stop VRF TYPES

93

The machine number and set the

number of inconsistencies fault

VRF

94 outdoor address conflict

VRF

95 Refrigerant serious excessive downtime

VRF

96 Refrigerant shortage downtime

VRF

97 Four way valve fault

FOR VRF&inverter

unitary types

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The following is the fault code table of indoor.

FAULT

CODE

FAULT DISCRIPTION REMARKS

31 Panel key ADfault Only for MUTI-SPLIT

32

The front panel fault is not in place

Only for MUTI-SPLIT

(two upper and lower position detecting switch and also put in

place or not in place)

33 Room Temperature Sensor Fault Only for MUTI-SPLIT

34 Coil Temperature Sensor Fault Only for MUTI-SPLIT

35

Panel drive fault

Only for MUTI-SPLIT

(two upper and lower panel position detection switch is not in

accordance with thereservation timing action)

36 Communication between Indoor and Outdoor Fault Only for MUTI-SPLIT

37 humidity sensor failure Only for MUTI-SPLIT

38 EEprom Data error Only for MUTI-SPLIT

39 Indoor Fan Motor Fault Only for MUTI-SPLIT

40 Grid protection Only for MUTI-SPLIT

51 Drainage Fault

52 Grid protection

53

The front panel fault is not in place

(two upper and lower position detecting switch and also put in

place or not in place)

55 Conflict Model Fault

ONLY FOR MUTI-SPLIT & VRF

TYPES

56 Freeze Protection

57 Overload Protection

61 Indoor address duplication For VRF

62 Remote address duplication For VRF

64 Communication between Indoor & Outdoor unit Fault

65 Communication between Indoor &Wiring remote controller Fault For VRF

71 The indoor zero crossing detection fault

72 Indoor Fan Motor Fault

73 EEPROM Data Error

74

Panel drive fault

(two upper and lower panel position detection switch is not in

accordance with there servation timing action)

80 Panel key fault

81 Ambient Temperature Sensor Fault

82 Evaporator Inlet Temperature Sensor Fault

83 Evaporator Middle TemperatureSensor Fault

84 Evaporator outlet Temperature Sensor Fault

85 Wiring Remote Controller Sensor Fault

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86 Outlet temperature sensor fault

87 The water side entrance temperature sensor fault

88 The water side entrance temperature sensor fault

89 Humidity sensor failure

FE

Communication between main control board &Wiring remote controller

Fault（display on wiring remote controller）

ER

Communication between main control board &display board Fault

（displays on display board）

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8-1. Check refrigerant system

TEST SYSTEM FLOW

Conditions: ① Compressor is running.

② The air condition should be installed in good ventilation.
Tool: Pressure Gauge
Technique: ① see ② feel ③ test

SEE ----- Tube defrost.
FEEL ----- The difference between tube’s temperature.
TEST ----- Test pressure.