Haier AU242FHBIA, AU482FIBIA, AU48NFIBJA AC Schematic

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Page 1

Commercial Air Conditioning

SERVICE MANUAL

Models

AU242FHBIA

AU482FIBIA

AU48NFIBJA

And its indoor units

zFeatures

zNew cassette unit, with 700*700 panel and new unit body zNew PCB for cassette indoor unit and outdoor unit, much stabler zMutiple indoor unit types: cassette type, ceiling concealed type, and wall

mounted type

zFree combination, total indoor capacity can be 50%~130% of outdoor capacity zMultiple control types, infrared control+wired control zIndividual operation for every indoor uint, energy saving zNew refrigerant control device: MP2A, MP3A zAuto restart function zLong piping and high drop between indoor and outdoor zRefrigerant: R407C

Manual code: SYJS-017-05REV.0 Edition: 2005-11-22

Page 2

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

CONTENTS

Contents………………………………………………………...2

1. Description of products & features………………………..3

2. Specification…………………………………………………6

3. Safety precaution…………………………………………...14

4. Net dimension……………………………………………….16

5. Installation instructions………..……………………………21

6. Parts and functions………………………………………….53

7. Controller functions.............………………………………..21

8. Electrical control functions…………………………………71

9. Wiring diagrams…………………………………………….95

10. Failure code and troubleshooting………………………..99

11. Noise level……………………………………...................121

12. Performance curves......................................................124

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Page 3

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

1.DESCRIPTION OF PRODUCTS & FEATURES

1.1. Products code explanation

A B 14 2 F C B I A

Climate type: T1 (see table 1)

Design number (I stands for design sequence, inverter

frequency type)

Product type: A stands for heat pump type, refrigerant is R22

B stands for heat pump type, refrigerant is R407C

M stands for cool only type, refrigerant is R22

N stands for cool only type, refrigerant is R407C

Appearance code

Product series: F stands for MRV

Applicable voltage: 2 stands for 220-230V/50Hz,

4 stands for 220V/60HzˈN stand for 380-400V/50Hz

Cooling / Heating capacity,14=14000BTU/h

Product type : “B” stands for cassette type, “C” stands for

convertible type, ”D” stands for duct, “S” stands for split

type, ”Q” stands for chiller system, "E" stands for ceiling

concealed type, “U” stands for outdoor unit

Air Conditioner

1.2 Brief Introduction for T1ǃT2ǃT3 working condition

Climate type

Type of Air

Conditioner

Cooling Only

Heat pump

Electricity Heating

T1 T2 T3

18 ć~43ć 10ć~35ć 21ć~52ć

-7ć~43ć -7ć~35ć -7ć~52ć

~43ć ~35ć ~52ć

1.3 Operating Range of Air Conditioners

Working temperature range

Rated Maximum Minimum

Cooling

Heating

Indoor

outdoor

Indoor

outdoor

DBć

WBć

DBć

WBć

DBć

WBć

DBć

WBć

27 32 18

19 23 14

35 43 -5

24 26 --

20 27 15

14.5 -- --

7 24 -15

6 18 --

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Page 4

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

1.4 Product features

New designed panel 700*700 with the 600*600 cassette unit

New designed swing louver with the non smooth surface, which can hold back the condensant water.

New designed filter lock, which will fix the filter more firmly than before.

Adopts the stepping motor, give the louver a larger swing angel.

New fan with bigger diameter fan blade, sending out larger air flow.

The cassette indoor unit adopts the panel whose dimension is identical to that of ceiling, after installation,

the unit will be accordant with the decoration decor.

Free combination, total indoor capacity can be 50%~130% of that of outdoor capacity

The outdoor unit can match with all types of indoor unit with the allowable capacity, such as the cassette

type, the ceiling concealed type, the wall mounted type, etc.

Optional control types: infrared remote controller and wired controller

The unit can be controlled by the smart infrared remote controller YR-H71, which can realize many

functions such as heating, cooling, fan, swing, fresh, health, filter up/down, electric heating, etc.

Furthermore, the remote controller can be compatible with many old controllers, more convenient for

utilizing.

If the unit is with wired controller YR-E06, which can realize remote control type by adding an infrared

controller YR-H71.

Auto-check function

The unit can display the malfunction codes on the control board by using advanced auto-check

technology, convenient for user find and dwell with the abnormal running.

Auto–restart function (optional)

All indoor units have auto-restart function. When the power supply cut off suddenly, the unit will

automatically recover the previous running mode once the power supply is on.

New refrigerant control device: MP2A, MP3A

The new refrigerant control device MP2A and MP3A replace the previous device MP2 and MP3. The new

device includes gas pipe and liquid pipe, more convenient for installation than before.

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Page 5

Commercial Air Conditioner Model: AU242FHBIA,

Total unit:

outdoor units

appearance model refrigerant

AU482FIBIA, AU48NFIBJA

indoor units

type appearance model

Four way cassette

AU242FHBIA

AU482FIBIA

AU48NFIBJA

R407C

AB092FCBIA

AB142FCBIA

AB182FCBIA

Ceiling concealed

Wall-mounted

(colorful screen)

AE072FCBKA

AE092FCBKA

AE122FCBKA

AE142FCBKA

AE182FCBKA

AE242FCBKA

AS072FCBHA

AS092FCBHA

AS122FCBHA

AS142FCBHA

AS182FCBHA

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

2. SPECIFICATION

AU242FHBIA

Item Model AU242FHBIA

Function cooling heating

Capacity BTU/h

Capacity W

Total power input

Max. power input

EER or COP

W/W 2.2 2.55

Power cable

Power source

Running /Max.Running current

NˈVˈHz

A / A

Start Current A

Working frequency range Hz

Fuse A

Unit model (color)

Compressor

Model / Manufacture

Type

Type × Number

Fan

Speed r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Type / Diameter mm

Heat exchanger

Dimension

Outdoor unit

Row*fin pintch

Temp. scope

External

Package

˄L×W×H˅ ˄L×W×H˅

mm×mm×mm

Refrigerant control method mm/mm

Defrosting

Volume of Accumulator L

Noise level dB(A)

material of reduce noise

crankcase heater power W

Weight (Net / Shipping)

Refrigerant

Type / Charge g

kg / kg

Recharge quantity g/m

Pipe

Liquid mm

Gas mm

PIPING

Connecting Method

Between I.D &O.D

MAX.Drop

MAX.Piping length

24000 27000

7030 7910

3200 3100

3800 3800

6mm

1PH,220-230V~,50Hz

cooling: 18A/21A heating: 17/21A

30-105

3.15A 250V AC

AU242FHBIA (white)

C-7RB267H03AA/ SANYO SHENYANG

ROTARY

AXIAL*1

840±30/780±30/550±50

60*1

3240

inner grooved copper pipe ¶9.52

2*1.5mm

948X830X340

1050X979X440

EEV

AUTO

74/89

R407C/3200

ĳ9.52 liquid pipe: 65g/mhactual length

¶9.52

¶15.88

flared

outdoor upper: 30, outdoor lower: 20

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Page 7

AU482FIBIA

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Item Model

AU482FIBIA

Function cooling heating

Capacity BTU/h

Capacity W Total power input

Max. power input

EER or COP

W/W

Power cable

Power source Running /Max.Running current

NˈVˈHz

A / A

Start Current A

Working frequency range Hz

Fuse A

Unit model (color)

Compressor

Model / Manufacture

Type

Type × Number

Fan

Speed r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Type / Diameter mm

Heat exchanger

Dimension

Outdoor unit

Row*fin pintch

Temp. scope

External

Package

˄L×W×H˅ ˄L×W×H˅

mm×mm×mm

Refrigerant control method mm/mm Defrosting

Volume of Accumulator L

Noise level dB(A)

material of reduce noise

crankcase heater power W Weight (Net / Shipping)

Refrigerant

Pipe

PIPING

Connecting Method

Between I.D &O.D

Type / Charge g

Recharge quantity g/m

Liquid mm

Gas mm

MAX.Drop

MAX.Piping length

kg / kg

48000 61000

14000 18000

6500 6000

7500 7500

2.15 3.00

16mm

1PH,220-230V~,50Hz

cooling: 34A/42A heating: 30/40A

30-105

3.15A 250V AC

AU482FIBIA (white)

EEV48FAL1/MITSUBISHI ELECTRIC

SCROLL

AXIAL*2

920±30r/min/840±40r/min/560±50r/min

65*2

7480

inner grooved copper pipe ¶9.52

2*1.5mm

43-60

1250X948X340

1375X1050X440

EEV

AUTO

120/135

R407C/4200

ĳ9.52 liquid pipe: 65g/mhactual length

¶9.52

¶19.05

flared

outdoor upper: 30, outdoor lower: 20

100

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Page 8

AU48NFIBJA

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Item Model

Function

Capacity BTU/h

Capacity W

Total power input

Max. power input

EER or COP

W/W

Power cable

Power source

Running /Max.Running current

NˈVˈHz

A / A

Start Current A

Working frequency range Hz

Fuse A

Unit model (color)

Compressor

Model / Manufacture

Type

Type × Number

Fan

Speed r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Type / Diameter mm

Heat exchanger

Dimension

Outdoor unit

Row*fin pintch

Temp. scope

External

Package

˄L×W×H˅ ˄L×W×H˅

mm×mm×mm

Refrigerant control method mm/mm

Defrosting

Volume of Accumulator L

Noise level dB(A)

material of reduce noise

crankcase heater power W

Weight (Net / Shipping)

Refrigerant

Type / Charge g

kg / kg

Recharge quantity g/m

Pipe

Liquid mm

Gas mm

PIPING

Connecting Method

Between I.D &O.D

MAX.Drop

MAX.Piping length

AU48NFIBJA

cooling heating

48000 61000

14000 18000

6000 6000

7000 7000

2.33 3.00

4mm

3N~,380-400V,50Hz

cooling: 10.5A/13A heating: 10.5/13A

25-95

3.15A 250V AC

AU48NFIBJA (white)

AEV60FCHMT/MITSUBISHI ELECTRIC

SCROLL

AXIAL*2

920±30 r/min/840±40r/min/560±50r/min

65*2

7480

inner grooved copper pipe ¶9.52

2*1.5mm

43-60

1250X948X340

1375X1050X440

EEV

AUTO

120/135

R407C/4400

ĳ9.52 liquid pipe: 65g/mhactual length

¶9.52

¶19.05

flared

outdoor upper: 30, outdoor lower: 20

100

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Page 9

Commercial Air Conditioner Model: AU242FHBIA,

Indoor:

Item model Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity Power source Running current A Starting current A Refrigerant Noise level(H/M/L) dB(A)

Type × Number

Fan

Heat exchanger Refrigerant control method Dimension(L×W×H)

Panel dimension (L×W× H)

Weight(unit/panel)

Liquid mm (inch)

Piping

Suited area m2 Controller type

Gas mm (inch) Connection method

Air-flow(H-M-L) m³/h Fan motor output W starting mothod

External Shipping External Shipping Net kg / kg Shipping kg / kg

10ϋ³×m³/h

NˈVˈHz

mm×mm×mm

AU482FIBIA, AU48NFIBJA

AB092FCBIA AB142FCBIA

9000 12000

11000 14000

2800 3600 3200 4000

1.6 2.1

1PH 220V-230V~ 50HZ 1PH 220V-230V~ 50HZ

-- --

11 R407C R407C 42/--/-- 42/--/--

centrifugal fan×1 centrifugal fan×1

700/--/-- 700/--/--

55 55

PG PG

Combination of wave cranny radiation fin and copper

Capillary + EEV 660×570×260 660×570×260 710×675×360 710×675×360

700×700×60 700×700×60

740×735×105 740×735×105

19.0/2.8 19.0/2.8

23.5/4.8 23.5/4.8

6.35 (1/4") 6.35 (1/4")

12.7 (1/2") 12.7 (1/2") flared flared

12~23 17~27

remote controller

Item model

Cooling capacity Btu/h Heating capacity Btu/h Cooling capacity W Heating capacity W Dehumidifying capacity Power source Running current A Starting current A Refrigerant Noise level(H/M/L) dB(A)

Type × Number

Fan

Heat exchanger

Refrigerant control method Dimension(L×W×H)

Panel dimension (L×W× H)

Weight(unit/panel)

Liquid mm (inch)

Piping

Suited area m2

Controller type

Gas mm (inch)

Connection method

Air-flow(H-M-L) m³/h Fan motor output W starting mothod

External

Shipping

External

Shipping

Net kg / kg

Shipping kg / kg

10ϋ³×m³/h

NˈVˈHz

mm×mm×mm

AB182FCBIA

17000 19000

5000 5500

2.1

1PH 220V-230V~ 50HZ

1 R407C 42/--/--

centrifugal fan×1

700/--/--

Combination of wave

cranny radiation fin and

copper pipe

Capillary + EEV

660×570×260

710×675×360

700×700×60

740×735×105

19.0/2.8

23.5/4.8

6.35 (1/4")

12.7 (1/2")

flared

22~33

remote controller

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Page 10

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Item model

AE072FCBKA AE092FCBKA

Cooling capacity Btu/h 7000 9000

Heating capacity Btu/h 9000 11000

Dehumidifying capacity

Power source

10ϋ³×m³/h NˈVˈHz

1.2 1.6

1PH 220V-230V 50HZ 1PH 220V-230V 50HZ

Refrigerant R407C R407C

Noise level(H/M/L) dB(A) 36/32/29 36/32/29

Type × Number centrifugal fan×2 centrifugal fan×2

Fan

Air-flow(H-M-L) m³/h 520 / 420 / 300 520 / 420 / 300

starting mothod Relay control Relay control

Heat exchanger

Refrigerant control method Dimension ˄L×W×H˅

Weight

External

Net kg 18 18

mm×mm×mm

Combination of wave cranny radiation fin and copper

Capillary + EEV

674×225×450 674×225×450

Liquid mm 6.35 6.35

Piping

Gas mm 9.52 9.52

Connection method flared flared

Suited area m2 8~16 11~21

Controller type

wired controller or remote controller

Item model

AE122FCBKA AE142FCBKA

Cooling capacity Btu/h 12000 14000

Heating capacity Btu/h 14000 16000

Dehumidifying capacity

Power source

10ϋ³×m³/h NˈVˈHz

1.8 2

1PH 220V-230V 50HZ 1PH 220V-230V 50HZ

Refrigerant R407C R407C

Noise level(H/M/L) dB(A) 42/38/32 42/38/32

Type × Number centrifugal fan×2 centrifugal fan×2

Fan

Air-flow(H-M-L) m³/h 650 / 550 / 400 700/ 550 / 400

starting mothod Relay control Relay control

Heat exchanger

Refrigerant control method Dimension ˄L×W×H˅

Weight

External

Net kg 20 20

mm×mm×mm

Combination of wave cranny radiation fin and copper

Capillary + EEV

828×225×450 828×225×450

Liquid mm 6.35 6.35

Piping

Gas mm 12.7 12.7

Connection method flared flared

Suited area m2 12~23 17~27

Controller type

wired controller or remote controller

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Page 11

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Item model

AE182FCBKA AE242FCBKA

Cooling capacity Btu/h 18000 24000

Heating capacity Btu/h 20000 28000

Dehumidifying capacity

Power source

10ϋ³×m³/h NˈVˈH

Refrigerant

Noise level(H/M/L) dB(A)

2.4 3

1PH 220V-230V 50H

R407C R407C 48 / 43 / 36 48 / 43 / 36

Type × Number centrifugal fan×2 centrifugal fan×2

Fan

Air-flow(H-M-L) m³/h 1000 /900/700 1000 /900/700

starting mothod Relay control Relay control

Heat exchanger

Combination of wave cranny radiation fin and

Refrigerant control method Capillary + EEV Capillary + EEV Dimension ˄L×W×H˅

Weight

External mm×mm×mm

 

Net kg 25 25

Liquid mm 9.52 9.52

Piping

Gas mm 15.88 15.88

Connection method flared flared

Suited area

Controller type

23~36 32~49 wired controller or remote controller

wired controller or remote controller

Item Model

Function Capacity Capacity Dehumidifying capacity Power cable Communication cable Power source Running current

Unit model (color) Fan CROSS×1

Heat exchanger

Dimension

Indoor unit

(L×W×H) Drainage pipe material, diameter mm Controller type Refrigerant control Noise level H/M/L dB(A) Weight Net / Shipping kg / kg Refrigerant Type —— Pipe 6.35

Piping

Connecting method

Type × Number —— Speed r/min Motor output power W Air-flows (H/M/L) m³/h Type / Diameter mm Total area m² Temp. scope External mm Package mm

Liquid mm Gas mm

—— Cooling Heating

BTU/h 18000 20000

W 5200 5800

10ϋ³×m³/h

—— ——

N, V, Hz

A / A 0.10 0.10

——

—— ——

——

3 × (1.0~1.5mm2 )

2x(0.75~1.25mm2 )

AS182FCBHA (white)

TP2M / 6.35×0.7

cooling: 6~7 / heating: 43~60

Phone type infrared

AS182FCBHA

2.0

1, 220~230, 50

1350/1150/900

760/630/560

about 0.15

928×197×265 1025×309×330 PVC, 11.4/16.4

EEV

44/41/38

11/14

R407C

12.7

Flared

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Page 12

Commercial Air Conditioner Model: AU242FHBIA,

(

)

(

)

(

)

AU482FIBIA, AU48NFIBJA

Item Model

Function Capacity Capacity Dehumidifying capacity

10ϋ³×m³/h

Power cable Communication cable Power source

N, V, Hz

Running current

Unit model (color) Fan

Type × Number —— Speed r/min Motor output power W Air-flows (H/M/L) m³/h

Heat exchanger

Type / Diameter mm Total area m² Temp. scope

Dimension

Indoor unit

(L×W×H)

External mm

Package mm Drainage pipe material, diameter mm Controller type Refrigerant control Noise level H/M/L dB(A) Weight Net / Shipping kg / kg Refrigerant Type —— Pipe

Piping

Connecting method

Liquid mm

Gas mm

Item Model

Function Capacity Capacity Dehumidifying capacity

10ϋ³×m³/h

Power cable Communication cable Power source

N, V, Hz

Running current

Unit model (color) Fan

Type × Number ——

Speed r/min

Motor output power W

Air-flows (H-M-L) m³/h Heat exchanger

Type / Diameter mm

Total area m²

Temp. scope Dimension

Indoor unit

(L×W×H)

External mm

Package mm Drainage pipe material, diameter mm Controller type Refrigerant control Noise level H/M/L dB(A) Weight Net / Shipping kg / kg Refrigerant Type —— Pipe

Piping

Connecting method

Liquid mm

Gas mm

AS072FCBHA AS092FCBHA

—— Cooling Heating Cooling Heating

BTU/h 7000 9500 9000 10000

W 2000 2800 2600 3200

1.0 / 1.0 / —— ——

1.0~1.5mm

3 ×

0.75~1.25mm

1, 220~230, 50 A / A 0.10 0.10 0.10 0.10 ——

AS072FCBHA (white) AS092FCBHA (white)

CROSS×1 CROSS×1

1050/900/800 1250/1050/900

25 25

520/410/300 600/500/410

TP2M / 6.35×0.7

about 0.15 about 0.15

cooling: 6~7 / heating: 43~60 795×197×265 795×197×265 880×315×330 880×315×330

PVC, 11.4/16.4 —— ——

Phone type infrared

EEV

36/33/29 37/35/30

7.6/10.6 7.6/10.6 R407C

6.35

12.7

——

Flared

AS122FCBHA AS142FCBHA

—— Cooling Heating Cooling Heating

BTU/h 12000 15000 14000 17000

W 3500 4500 4000 5000

1.6 / 2.0 / —— ——

3 × 0.75mm

0.75~1.25mm

1, 220~230, 50 A / A 0.15 0.15 0.15 0.15 ——

AS122FCBHA (white) AS142FCBHA (white)

CROSS×1 CROSS×1

1250/1050/900 1250/1050/900

25 25

630/520/410 640/570/450

TP2M / 6.35×0.7

about 0.20 about 0.20

cooling: 6~7 / heating: 43~60 795×197×265 928×197×265 880×315×330 1025×309×330

PVC, 11.4/16.4 —— ——

Phone type infrared

EEV

39/37/30 44/41/38

7.6/10.6 11/14 R407C

6.35

12.7

——

Flared

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Page 13

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Norminal condition: indoor temperature (cooling): 27 ćDB/19ćWB, indoor temperature (heating): 20 ćDB Outdoor temperature(cooling): 35ćDB/24ćWB, outdoor temperature(heating): 7 ćDB/6ćWB The noise level will be measured in the third octave band limited values, using a Real Time Analyser calibrated sound intensity meter. It is a sound pressure noise level. The detailed method please refer to the following information:

Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method:

mounting-on-wall unit: built-in-ceiling unit: duct unit without auxiliary duct:

duct

0.8m

1.4m

outdoor unit:

1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right directions.

2.air outlet from top: the noise level is the average sound pressure level measured from front, back, left, right directions. measured point: H ( height to the ground) = (h (unit height) + 1m) /2 and, it is 1m to each side.

Note: Ĵ is the real time analyser position

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Page 14

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

3. Safety precaution

Carefully read the following information in order to operate the airconditioner correctly.

Below are listed three kinds of Safety Cautions and Suggestions.

WARNING! CAUTION!

INSTRUCTIONS: These information can ensure the correct operation of the machine.

Be sure to conform with the following important Safety Cautions.

The Safety Cautions should be at hand so that they can be checked at any time when needed.

If the conditioner is transferred to the new user, this manual should be as well transferred to the new user.

Incorrect operations may result in severe consequences of death or serious injuries. Incorrect operations may result in injuries or machine damages; in some cases may

cause serious consequences.

WARNING!

If any abnormal phenomena is found (e. g.smell of firing), please cut off the power supply immediately, and contact the dealer to find out the handling method.

In such case, to continue using the conditioner will damage the conditioner, and may cause electrical shock or fire hazard.

Don't dismantle the outlet of the outdoor unit.

The exposed fan is very dangerous which may harm human beings.

switch

off

After the unit being used for a long time, the base should be checked for any damages.

If the damaged base is not repaired, the

unit may fall down and cause accidents.

When the unit needs maintenance and repairment, please call dealer to handle it.

Incorrect maintenance and repairment may cause water leak, electrical shock and fire hazard.

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Page 15

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

WARNING!

Installed electrical-leaking circuit breaker.

It easily cause electrical shock without circuit breaker.

Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard.

Please let the dealer be responsible for installing the conditioner.

Incorrect installation may cause water

leak, electrical shock and fire hazard.

Call the dealer to take measures to

prevent the refrigerant from leaking.

Nothing or nobody is permitted to placed on or stand on outdoor unit.

The falling of goods and people may cause accidents.

Don't operate the air-conditioner with damp hands.

Otherwise will be shocked.

If conditioner is installed in a small

room be sure to take every measure in

order to prevent suffocation accident

even in case of refrigerant leakage.

When conditioner is removed or

reinstalled, dealer should be responsible

for them.

Incorrect installation may cause water

leaking, electrical shock and fire hazard.

Connect earthing wire.

Earthing wire should not be connected to the gas pipe, water pipe, lightning rod or phone line, in-correct earthing may cause shock.

Only use correctly-typed fuse.

May not use wire or any other materials replacing fuse, other-wise may cause faults or fire accidents.

Use discharge pipe correctly to ensure efficient discharge.

Incorrect pipe use may cause water leaking.

Earthing

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Page 16

4. Net dimension

AU242FHBHA

948

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Power wiring terminal

840

340

AU48*

184

580

948

184

380

Power wiring Terminal

184 184

580

1250

380

-16-

340

Screw Hole

(4xM10)

Page 17

AB** Cassette unit:

LXIQTIOM VQVM

:;9

OIY VQVMRQW[QL VQVM

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

U\MXRIVML LQYZITKM JMZ]MMT ZPM KMQRQTO

ITL ZPM VITMRC ;>SS

Y[YVMTYQUT PURLMX

:>9SS

<;9SS

><>SS 7JMZ]MMT Y[YVMTYQUT VURMY8

>@9SS 7QTLUUX [TQZ LQSMTYQUT8

?>9SS 7KMQRQTO UVMTQTO LQSMTYQUT8

@99SS 7VITMR LQSMTYQUT8

GFEH D

AE** Ceiling concealed unit

100

240

>@9SS 7QTLUUX [TQZ LQSMTYQUT8

?>9SS 7KMQRQTO UVMTQTO LQSMTYQUT8

@99SS 7VITMR LQSMTYQUT8

KMQRQTO

:A9

VITMR

?9SS

NXMYP IQX PURM

:=9

GFEH D

225



29(5

unit model

AE072FCBKA AE092FCBKA

AE122FCBKA AE142FCBKA

AE182FCBKA

AE242FCBKA



615

704

858

990

650

800

1020

1350

452

-17-

Page 18

AS** series

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

:=DAI

FH@AE

AS072FCBHA AS092FCBHA AS122FCBHA

AS142FCBHA AS182FCBHA

462

6/5

/32

.64

-18-

Page 19



Commercial Air Conditioner Model: AU242FHBIA,

Dimensions for MP2A, MP3A:

Installation on the horizontal ceiling:

horizontal ceiling

AU482FIBIA, AU48NFIBJA





 





-19-

Page 20



Installation on the vertical wall (adjust the installation position by fixing holder):

vertical wall

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA





















 

  



-20-

Page 21

Commercial Air Conditioner Model: AU242FHBIA,

5. Installation Instructions

5.1 Piping dimension chart

AU482FIBIA, AU48NFIBJA

model

liquid pipe gas pipe

mm inch mm inch AU24 9.52 3/8" 15.88 5/8" AU48 9.52 3/8" 19.05 3/4" AB09 6.35 1/4" 12.7 1/2" AB14 6.35 1/4" 12.7 1/2" AB18 6.35 1/4" 12.7 1/2" AE07 6.35 1/4" 9.52 3/8" AE09 6.35 1/4" 9.52 3/8" AE12 6.35 1/4" 12.7 1/2" AE14 6.35 1/4" 12.7 1/2" AE18 9.52 3/8" 15.88 5/8" AE24 9.52 3/8" 15.88 5/8" AS07 6.35 1/4" 12.7 1/2" AS09 6.35 1/4" 12.7 1/2" AS12 6.35 1/4" 12.7 1/2" AS14 6.35 1/4" 12.7 1/2" AS18 6.35 1/4" 12.7 1/2"

5.2 Y-shape manifold pipe

model: FQG-B120

9.52

12.7

15.88

9.52

6.35

heat preservation material

12.7

15.9

12.7

9.52

15.88

9.52

12.7

Dimension is the out diameter connecting to the tubing.

-21-

Page 22

FQG-B180

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Refrigerant pipes between manifold pipes Total refrigerating amount of indoor unit

Gas side Liquid side

roup after the manifold pipe

Less than 38220Btu/h 15.9 9.52 38220~61157Btu/h 19.05 9.52 61157~126137Btu/h 25.4 12.7 Note: 1. Y-shape manifold pipe can be placed in horizontal or vertical

direction

2. The manifold pipes must be welded with hard-solder

3. Pay attention to cut off the unnecessary part from its middle parts of each joint, and to remove burr.

-22-

Page 23

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

In the file, the figure marked with "Ĝ" is permitted, and the figure marked with "h" is prohibited.

You can confirm the position according to the actual condition.

The refrigerant flow direction is always from the collective side to the divided side.

horizontal

vertical

floor surface

horizontal

floor surface

vertical

floor surface

-23-

Page 24

Commercial Air Conditioner Model: AU242FHBIA,

5.3 Instructions for the Electrical Expansion Valve Boxes

The E.E.V.B. general information for the C-MRV and H-MRV indoor units.

1. Installation position

AU482FIBIA, AU48NFIBJA

0°

360°

180°

Z: vertical direction

X, Y: horizontal direction

2. Installation place

The box should be installed where the place:

a. do not have vibrations;

b. easy to piping with the indoor and the outdoor unit, and the distance from the box to the indoor unit

should not exceed a certain value;

c. do not have a heat or steam source nearby;

d. should be sunless and be dry;

e. should be well ventilated and rainproof;

0°

wiring connector

liquid pipe in/out

f. do not have a strict noise restriction, because when working the box may make some noise;

-24-

Page 25



Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.4 MP2A, MP3A Installation Requirement

1. Cautions

1.1 The place should be strong enough to support this equipment, no vibrantion;

1.2 The place where is convenient to install the indoor unit, outdoor unit and the refrigerant pipe, and

the length of the pipe is in the permitted range;

1.3 No heat source and gas source nearby;

1.4 The place has enough space for installation and maintenance;

1.5 Donpt installation in the place in the state of high temperature and high humidity for a long time;

1.6 The place with good ventilation, no direct sunshine and rain;

1.7 Donpt install the unit near the bedroom because of the refrigerant flow noise;

Please refer to the cautions and warnings in the operation manual about the other safety cautions.

2. Installation Method

2.1 MP2A, MP3A can be installed on the horizontal ceiling or the vertical wall by adjusting the fixing

holder. The maintenance plate should be installed on the place easy to maintain and near the place,

there should be checking hole with 600mm*600mm (adjust the fixing holder as below figure).

vertical wall

2.2 The equipment has been dealt with the EPS heat insulation material, so the drainage pipe needs

not any other treatments.

2.3 The pipe connected to indoor is led from the branch pipe of the equipment. The gas pipe

diameter can realize to match with different diameters by the changing pipe according to the

indoor pipe diameter request.

2.4 In installation, the equipment gradient should be in the range of 5¤, or it may cause electronic

expansion valve body in the equipment leakage or the other bad control failure.

2.5 Bolt, screw cap and gasket to fix the equipment will not be supplied by factory.

3. Wiring Connection

3.1 The wire and refrigerant pipe must be connected to the corresponding place (refer to marks on

the equipment and the terminal block as 1,2,3).

3.2 Wiring diagram is sticked on the back of cover plate, and the wiring must be performed

according to the wiring diagram, or the control will be bad or indoor and the equipment will be

damaged.

3.3 After wiring, the wires must be fixed with the wire clip firmly, in case that the electric control parts

are damaged or occurs person injury.

-25-

Page 26

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.5 Connecting figure:

670 ;9E := LJ=< >FI KMF AE<FFI LEAKJ- GC=9J= ;FE>AID K@= 670 HL9EKAKO 9;;FI<AE? KF K@= 9;KL9C AE<FFI LEAKJ/ 671 ;9E := LJ=< >FI K@I== AE<FFI LEAKJ- GC=9J= ;FE>AID K@= 671 HL9EKAKO 9;;FI<AE? KF K@= 9;KL9C AE<FFI LEAKJ/

5EJK9CC9KAFE D=K@F< AJ :=CFM- M@A;@ FECO K9B=J 671 9J 9E =N9DGC=/ 7C=9J= G9O 9KK=EKAFE K@9K K@= ?9J GAG=J

AEJK9CC9KAFE AJ 9J K@= J9D= 9J K@= ;FE<AKAFE MAK@FLK 670+671,/

AE<FFI CAHLA< GAG=

FLK<FFI CAHLA< GAG=

8.J@9G= D9EA>FC< GAG=

Piping length and drop between units

Haier

QRP

AE<FFI 2

AE<FFI 3

AE<FFI 4

AE<FFI 20

AE<FFI 30

AE<FFI 40

-26-

Page 27

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

1) When connected with 8 units,indoor units refer to <admissible combination examples>

2) Total length=l1+l2*2+l3*4+l4*4+l5*4<=100m

3) Max. piping length =(l1+l2+l3+l5)<=70m

4) Max. piping length between the indoor unit and the first branch pipe<=30m

5) Max. drop between outdoor unit and indoor unit: H<=30m(indoor above outdoor);H<=20m(indoor below outdoor)

6) Max. drop between the two indoor units : h<=10m

7) Expansion valve is less than 15m to its corresponding indoor unit

8) Only wall mounted types are connected with expansion valves.

9) The expansion valves of different indoor models are different.

10)The first branch pipe must use FQG-180,the others use less than it.

Combination example:

8 by 1:

Haier

AE07

MP3A

EEV

AE07

AB09

AS07

Note:

1.AU24 can connect with max. 5 indoor units, and AU48 can connect with max. 8 indoor units, but pay attention that the total indoor capacity can not exceed 130% of outdoor cooling capacity.

The ceiling concealed unit must connect with the outdoor unit through the MP2A or MP3A; the wall mounted

unit must connect with the outdoor unit through the exterior EEV box; while for the cassette unit, because it has the built-in EEV, so it need not anything and it can connect to outdoor directly.

-27-

Page 28

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

6 by one

AU48-

AS09 (or other 9000BTU units)

Haier

AS09 (or other 9000BTU units)

EEV

AS09 (or other 9000BTU units)

-28-

Page 29

Commercial Air Conditioner Model: AU242FHBIA,

5.6 The Order of Installation Work

AU482FIBIA, AU48NFIBJA

Item

Before installation Work division -to ascertain the person responsible for installation of pipes and wiring

Work

Installation of indoor and

Work Main points

Make installation

diagram

outdoor unit

Refrigerant pipe work -Pay attention to dry, clean and seal

Drain pipe work -Slant downward

Heat insulation work -No gaps in the joint of heat insulation material

Wiring work (control

wire, power cord)

Set every set switch -Should be complied with control wiring system diagram

Airtight test -Close all the gas, liquid valves

Vacuum drying -Should the vacuum pump that can reach 200Pa vacuity

Additional refrigerant -Write down the additional refrigerant amount on the outdoor unit body

Test run adjustment -Do test run to indoor unit one by one to verify if there is wrong pipes

Training of use and

maintenance

-to ascertain the pipe installation dimension and position of electronic expansion valve, to make control wiring system diagram

-to prevent the ventilation from short circuit and guarantee repair space

-Choose the proper wire and cord

and record table

-Explain to user, simultaneously provide all the documents

The above work order is general knowledge, they may be changed to be complied with the specific work site.

5.7 Attentive matters of safety

 Before installing, do read this [Attentive matters of safety] carefully to guarantee the

proper installation.

 The below attentive matters are divided into [warning] and [note] two parts. When the

wrong installation occur, it is very possible death and severe injury and other serious accidents will happen. For those items are listed in [warning] part. But even the items listed in [note] part can also cause serious accidents. Above all, both the two parts are very important contents related to safety, so they must be obeyed.

 After installation, do test run to verify everything is normal, after that please explains the

use method and maintenance method to the user according to the operation manual. Additionally, give the installation manual together with operation manual to the user and ask them to keep them properly.

Warning

 The distributing shop, where you bought the air conditioner, or the specified shops shall

do the installation work. If you do the installation work by yourself, the improper installation will cause water leakage, electric shock fire and other accidents.

 The installation work shall be in line with what the installation manual specified. If

installation is not proper, water leakage, electric shock, fire and other accidents will occur.

 Install the air conditioner to a place where can definitely stand its weight. Places not firm

enough will cause drop down of unit resulting in body hurt.

 The installation work shall be preventive to typhoon and earthquake. If the installation

-29-

Page 30

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

work is not met with the requirements, overturn of the unit will occur resulting in accidents.

 The wiring work shall be done by a qualified person and referred to the “technical

standard of electric equipment”, “indoor wiring regulation” and what the manual specified. Do use special circuit. If the capacity of the circuit is not enough or bad work, electric shock, fire and other accidents will happen.

 Using the specified cable to do wiring work and connecting firmly and properly. Fix the

connecting part of the terminals to prevent it from the external force. Improper connection and fixing will cause heating and fire etc. accidents.

 Wiring shall be kept in correct shape avoiding extrusion. After installation, the electric

box cover and the external panel shall not nip the wire. Improper installation will cause heating and fire etc. accidents.

 When setting or moving the air conditioner do not let the air and things alike get into the

refrigeration system except the specified refrigerant. If air and other things enter,abnormal high pressure will occur, which easily cause break and body injuries etc.

 When installing, do use the accessories or specified parts. If not using the parts specified

by our company, water leakage, electric shock, fire and refrigerant leakage will occur.

 Do not lead the drainpipe to drain where the sulfur gas may be involved. Otherwise, the

poisonous gas will enter into the indoor.

 During installation, if refrigerant leakage occurs, do the ventilation work immediately. As

soon as the refrigerant gas meets fire, poisonous gas will be produce. If the refrigerant gas enters into room and meet the air blowing heater, heater or stove etc. fire source, the poisonous gas may be produced. After installation, confirm there is no leakage of refrigerant.

 Do not install the unit in a place where the combustible gas may be leaked. In any case

the combustible gas leaks and accumulated around the unit, fire accident will occur.

 Do heat insulation work to the refrigerant gas pipes and liquid pipes to reach the purpose

of heat preservation. If the heat insulation measure is not sufficient, water generated by condensing dew will drip leading to wet the floor and indoor articles.

 Do not damage the power line or change it arbitrarily to avoid occurrence of fire or

electric shock.

 Do not extend the power line or using other electric appliance in the same power

receptacle to avoid fire or electric shock.

Note

 Do grounding work. Do not connect the grounding wire to gas pipe, tap, lighting rod or

telephone line. Improper grounding will cause electric shock.

 In some places the electric leakage breaker shall be installed. If do not install the breaker,

electric shock may occur.

 After installation, power on to do electric leakage detecting test.

-30-

Page 31

Commercial Air Conditioner Model: AU242FHBIA,

5.8 Special Work and Main Points in Installation

Warning

AU482FIBIA, AU48NFIBJA

Durin



leakage occurs, take ventilatio measurement immediately.

 As soon as the leaked refri

generate.

installation, if refrigeran

erant

as meets fire, poisonous gas will

 After finishing installation, confir

the refrigerant gas does not leak.

 If the refri

room, once it meets heater, burne and gas stove etc. fire source, the poisonous gas will generate.

erant gas leaks in the

A. Choosing of pipes

According to the following indoor unit and outdoor unit installation diagram to choose the material and size of pipes and branch pipes.

B. Connection of pipes

1 Method of pipe connection

a. The pipe shall be as short as possible to guarantee efficiency.

b. Daub the refrigerant oil on the connection and flare nut. c. When bending the pipes, give the roundness as large as possible, to avoid crashing the pipes.

d. To connect the pipe, fit the center and screw the nut with hand, then use spanner or

torque wrench to tighten it. The fastening torque as shown in below table. As shown in figure.

e. Be careful alien matters, such as sands,

water etc. shall not enter the pipes.

Forced fastening without careful centering may damage the threads and cause gas

2. Welding of pipes a. In welding, the nitrogen shall be used to avoid oxidation of the pipe inner part. b. The refrigerating pipe shall use clean new pipes. When working, it shall take steps to prevent water and dust from entering. c. When loosening and tightening the nuts, two spanners shall be used. If using one spanner, it can not reach the desired degree of tightness.

Using the specified fastening torque to fasten nuts.

Pipe diameter (mm) Installation torque (N.M.) Fastening torque (N.M.)

6.35 11.8 (1.2kgf.m) 13.7 (1.4kgf.m)

9.52 24.5 (2.5kgf.m) 29.4 (3.0kgf.m)

12.7 49.0 (5.0kgf.m) 53.9 (5.5kgf.m)

15.88 78.4 (8.0kgf.m) 98.0 (10.0kgf.m)

-31-

Page 32

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

(4) Pipe connection of the outdoor unit Referring to the installation diagram in page 4, connect the indoor unit, outdoor unit, branch pipe and electronic expansion valve together by using the pipe connection method and welding method.

-32-

Page 33

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.9 Test of leakage after wiring work is finished

After connection of the refrigerant pipes, carry out leakage test. In this test, pressurize to the pipes as shown in the below figure by using nitrogen tank.

Close the valves of the gas side and liquid side totally. The nitrogen may enter the cycle system of the outdoor unit, so that, before pressurizing, the valve rods must be fastened. (Both the gas side and liquid side). For each of the refrigerant system, pressurize from the discharge valve of gas side in procedure. When doing leakage test, it is absolutely forbidden to use oxygen, flammable gas and poisonous gas. The indoor unit expansion valve must be open.

5 vacuuming of the pipes and indoor unit (using vacuum pump to vacuums, it is strictly forbidden to use

refrigerant purging)

a. Choose of vacuum pump: it shall choose those that can reach a good vacuity (over 200Pa)and have

a large air discharge amount (over 40L/min).

b. After finishing the airtight quality test and the nitrogen discharging , connect the instrumental diverter

to the 3-way discharge valve, then connect the vacuum pump according to the below figure.

-33-

Page 34

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

c. Vacuumize 2~3 hours according to the length of the pipe. When vacuuming, confirm the

gas side and liquid side of the 2-way valve and 3-way valve shall be in full close state.

d. When it is not lower than 200Pa after 2 hours or more vacuuming, vacuums for another 1

hour. If after more than 3 hours vacuuming it is still not lower than 200Pa, the leak part shall be found.

e. When it is lower than 200Pa after more than 2 hours vacuuming, close both the valve VL

and VH of the diverter, then close the vacuum pump. Place it there to observe if the

vacuity changes. If it changes, it indicates leakage exists, so the leak part shall be found.

f. After finishing the above vacuuming work, replace the vacuum pump with refrigerant

tank and turn to the refrigerant charging procedure.

5.10 Charging of refrigerant

1. Calculation of additional charging amount of refrigerant After finishing vacuuming work, replace the vacuum pump with refrigerant tank and turn to the refrigerant additional charging procedure. Calculation of additional charging amount of refrigerant Before the air conditioner leaving factory, the refrigerant-charging amount does not include the refrigerant in the site pipe part. Calculate the refrigerant amount for the site pipe first, then do the additional refrigerant charging work. Refrigerant charging amount when air conditioner leaves factory

R407C:4200g.

Calculation method: According to the liquid pipe dimension of site pipe and actual length to calculate the additional refrigerant-charging amount. Calculation formula: Site refrigerant charging amount=Length of liquid pipe x additional refrigerant charging amount/m For example: additional charging amount R (kg) = (L1x0.030kg/m)+(L2x0.065kg/m) L1: Total length of liquid pipe diameter 6.35mm; L2: Total length of liquid pipe diameter 9.52mm.

2. Charging of refrigerant Close all valves of outdoor unit, and charge refrigerant from air discharge valve of gas side. When can not charge the specified amount, firstly, open all the valves, both liquid side and gas side, of outdoor unit, then switch the valve of gas side to close state a little. Under this condition, do cooling operation and charge refrigerant from the discharge valve of gas side. At this time, adjust the valve of the refrigerant tank to make the refrigerant in Gas State when it is absorbed by system. When refrigerant leakage making refrigerant lack in system occurs, the intrinsic refrigerant of the system shall be recovered and recharge it according to specified amount.

3. Opening of the refrigerant pipe

Open all the valves of outdoor unit

-34-

Page 35

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.11 Refrigerant

QRU Y[cigWa W_g YdcZ_i_dc[gjh[hg[\g_][gWci :RGCIN:A T^_h g[\g_][gWci _ih[a\ _h _ccdYjdjh?cdc@YdbXjhi_Xa[ hW\[in g[\g_][gWciAMji i^[c? l^[c WggWc]_c] i^[W_g YdcZ_i_dc[g [fj_eb[ci? _i _h c[Y[hhWgn id iW`[ hdb[ hi[eh id iW`[ g[YWji_dch W]W iW`[c _cid WYYdjci id Wkd_Z bW`_c] i^[YdcY[cigWi_dc d\ i^[ g[\g_][gWci cdi [mY[[Z i^[YdcY[cigWi_dc a_b_i

WcZ di^[gg[a[kWci hi[ehAT^[YdcY[cigWi_dc a_b_i _h i^[YdcY[cig

WcZYWciW`[[b[g][cYnhi[eh id ig[Wii^[YdcY[cigWi_dc d\Pg[dcANdcY[cigWi_dc a_b_i d\ RGCINJ CAF`]BbF

hW\[in g[\g_][gWciA

_chi _c YWh[ d\ i^[ _cZddgh g[\g_][gWci a[W`W][A SjY^ Wh?i^[ gddb h_o[ h^Waa X[

Wi_dc i^Wi_hcdi^Wgb\ja id ^jbWc XdZn

DAS[fj[cY[ d\ g[\g_][gWci YdcY[cigWi_dc W\\_gbWcY[

NWaYjaWi[ i^[ g[\g_][gWci YdcY[cigWi_dc WYYdgZ_c] id i^[\daadl_c] h[fj[cY[A

D=NWaYjaWi[ i^[ idiWag[\g_][gWci@Y^Wg]_c]Wbdjci d\ [WY^d\ i^[ g[\g_][gWi_c] hnhi[b <`]=A

R[\g_][gWci Y^Wg]_c]Wbdjci d\ djiZddg hnhi[b > LZZ_i_dcWag[\g_][gWci Y^Wg]_c]Wbdjci

KTdiWag[\g_][gWci Y^Wg]_c]Wbdjci d\ i^[ g[\g_][gWi_c][fj_eb[ci <`]=

R[\g_][gWci Y^Wg]_c]Wbdjci d\ djiZddg hnhi[bJ R[\g_][gWci Y^Wg]_c]Wbdjci l^[c W_g YdcZ_i_dc[ga[Wk[h \WYidgnA

LZZ_i_dcWag[\g_][gWci Y^Wg]_c]WbdjciJLZZ_i_dcWag[\g_][gWci Y^Wg]_c]Wbdjci WYYdgZ_c] id i^[ h_i[ e_e[

a[c]i^ WcZ e_e[Z_Wb[i[gA

E= NWaYjaWi[ i^[ b_c_bjb h_o[ d\ i^[ gddb hj_iWXa[\dg i^[ _cZddg jc_i Whh[bXan <bF=A

NWaYjaWi[ i^[YdcY[cigWi_dc d\ g[\g_][gWciJ TdiWag[\g_][gWci Y^Wg]_c]Wbdjci d\ g[\g_][gWi_c][fj_eb[ciBi^[ b_c_bjb gddb h_o[ hj_iWXa[\

Whh[bXan <bF=AR[\g_][gWci YdcY[cigWi_dc a_b_iJ CAF`]B bF

EA Ndjci[gb[Whjg[ l^[c [mY[[Z_c] i^[YdcY[cigWi_dc a_b_i

D= S[i Wc [\\[Yi_k[ de[c_c]\dg k[ci_aWi_dc WcZ\g[h^ W_gA

Nji Wc _ciW`[ g[he[Yi_k[an dc i^[ jee[g WcZ adl[geWgi d\ i^[Zddg l^_Y^

Wg[Wh Wg[[fj_kWa[ci id CADH; ]gdjcZ_c]Wg[W? dg Yji Wc _ciW`[ _c di^[geWgi d\ i^[ gddbA

E= R[ZjY[ i^[ idiWag[\g_][gWci Y^Wg]_c]Wbdjci d\ i^[ g[\g_][gWi_c][fj_eb[ci

S^dgi[ci^[ g[\g_][gWci e_e[ a[c]i^A R[ZjY[ i^[ _chiWaaWi_dc eaWY[ Z_hiWcY[ X[il[[ci^[ djiZddg

jc_i WcZ i^[ _cZddg jc_i id h^dgi[ci^[ g[\g_][gWci e_e[ a[c]i^? hd i^Wig[ZjY[ i^[ idiWag[\g_][gWci

Y^Wg]_c]Wbdjci d\ i^[ g[\g_][gWi_c][fj_eb[ciA

F=OhiWXa_h^ k[ci_aWi_dc WcZ\g[h^ W_g hnhi[b

OhiWXa_h^ W b[Y^Wc_YWa [fj_eb[ci \dg \g[h^ W_g id `[[ei^[ g[\g_][gWci YdcY[cigWi_dc X[adl i^[YdcY[cigWi_dc

a_b_i <cdgbWak[ci_aWi_dc=

V^[c YWc cdi k[ci_aWi[ i^[ cdgbWaan? ea[Wh[ h[i Wc WaWgb WeeWgWijh a_c`[Z l_i^ i^[ b[Y^Wc_YWa

k[ci_aWi_dc [fj_eb[ciA

dg _cZddg jc_i

-35-

Page 36

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.12 Electric cautions:

Power supply specs Connecting wire

model

Power source

Circuit

breaker

Power

cable

wire

core section area core section area

Communication

AU242FHBIA

AU482FIBIA

AU48NFIBJA

AE*FCBKA 3

AS*FCBHA 3

1PH, 220-230V~,

50Hz

1PH, 220-230V~,

50Hz

3PH, 380-400V~,

50Hz

1PH, 220-230V~,

50Hz

30A 5mm

50A 10mm

20A 4 mm

15A 1.5mm

2 1.0-1.5mm

AB*FCBIA

Remark:

1. Must not connect the power cable and communication wire incorrectly. Forbidden to connect

the power cable and communication wire with one muti-core cable, and they must be wired

separately, keep proper distance between them to ensure the air conditioner run normally.

2. Communication wires among indoor units should be hand in hand type, and decrease the

branch, also the shielded layer should be connected together and be earthed on one point.

3. All indoor communication wires will be connected to the communication bus wire (2-core), C1

and C2 are non-polar.

4. Because the indoor unit adopts EEV control method, when a sudden power off occurs, the

EEV maybe keep some angle. If indoor unit and outdoor unit connect to power supply

separately, when some indoor units running in cooling mode, when powered off, because

the EEV does not reset, the indoor units maybe drop water, or ice up. We recommend that the

indoor unit connect to power supply from the outdoor unit, or use one power supply with the

outdoor unit. If the indoor unit need connect power supply individually, the personnel must

explain to the customer that he (she) must switch off the unit with wired controller or remote

controller, then he (she) can shut off the indoor unit. If there is accidental power failure,

please firstly power on all the indoor units after power on, in order to reset the indoor EEV.

5. When wiring the MP2A or MP3A, please ensure that the power source and the communication

wires of MP2A or MP3A must correspond with the relative indoor units.

6. AS*FCBHA and the cassette unit will not be connected with the MP2A or MP3A.

7. If the ceiling concealed indoor unit is with the electric heater, the circuit breaker will vary

accordingly.

Wired controller

wire

0.75mm



-36-

Page 37

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

5.13 Indoor unit number setting:

Indoor unit has two kinds of control type: infrared control and wired contrl, so the corresponding

unit address setting will vary as the following: for the infrared control type unit, set with the

address setting controller; for the wired control type unit, set with the dip switch, and the unit

number is from 1 to 8.

(1) Number setting for wired control type unit:

1 2 3 4 Indoor unit No.

0 0 0 0 1

1 0 0 0 2

0 1 0 0 3

1 1 0 0 4

0 0 1 0 5

1 0 1 0 6

0 1 1 0 7

1 1 1 0 8

Note:

1. Dip switch at ON position shows 0.

2. If there are not only the infrared control type unit also the wired control type unit in the whole

system, please set the wired control type unit number firstly and then record the numbers,

then set the infrared control type unit number, to avoid the repeated unit number.

(2) Number setting for infrared control type unit:

Please refer to the manual of address setting controller ASC-02.

5.14 The dip switch setting when out of factory:

AE*FCBKA: Unit No.: 3; 3 fan speeds; wired control type; exterior EEV. That is: SW01-1 ON,

SW01-2 OFF, SW01-3 ON, SW01-4 OFF; SW02-1 ON, SW02-2 OFF; SW03-1 ON, SW03-2 ON.

AB*FCBIA: Unit No.: 3; 3 fan speeds; infrared control type; built-in EEV. That is: SW01-1 ON,

SW01-2 OFF, SW01-3 ON, SW01-4 OFF; SW02-1 OFF, SW02-2 ON; SW03-1 OFF, SW03-2 ON.

When installation, the installer should adjust the setting according to the actual condition.

The ports functions for AB and AE unit (some are optional):

port Corresponding parts port Corresponding parts

CN4 Negative ion generator or high-voltage

accumulator

CN6 EEV CN7 Pump motor

CN10 Indoor motor CN11 Float switch

CN12 Swing motor CN13 Remote receiver

CN14 Wired controller CN18 Neutral line of terminal block

CN19 Auxiliary electric heating CN20 Live line of terminal block

CN22 Auxiliary electric heating CN24

CN25 Communication of EEV box CN9 Pre-set

CN5 Gas/liquid pipe temp. sensor

Room temp. sensor ˄ AE* unnecessary˅

-37-

Page 38

Commercial Air Conditioner Model: AU242FHBIA,

Cassette unit installation:

t~,-w||w-{*~v**|,

HdijWbbWj_ed jeebi

Q^[ _dijWbbWj_ed jeebi b_ij[Z _dj^[ \ebbem_d] i^[[j YWd X[ ki[Z Wi h[gk_h[Z0

30 PYh[m Zh_l[h

40 GWYaiWm

50 Ch_bb m_j^ WZ_Wc[j[h e\ 82cc

60 Hdd[h ^[nW]ed ifWdd[h.i^_\j_d]

ifWdd[h

70 PfWdd[h ,36. 39. 3;.46.49cc-

80 N_f[ Ykjj[h

90 N_f[ [nfWdZ[h

:0 Id_\[

;0 N_dY[hi

320 J[WaW][ Z[j[Yjeh eh ieWfo mWj[h

330 AWdZ jWf[

340 PYhWf[h

350 O[\h_][hWdj e_b

AU482FIBIA, AU48NFIBJA

Q^[ \ebbem_d] fWhji c[dj_ed[Z _dj^_i cWdkWb Wh[ j^[ _dijWbbWj_ed WYY[iieh_[i m[ fh[fWh[Z0

PocXeb NWhji LWc[

@Z^[i_l[ jWf[

N_f[ YbWcf

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ChW_dW][ ^ei[

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Fofikc femZ[h

t~,-w||w-{*~u+*xzy.+z,

30P[b[Yj_ed e\ HdijWbbWj_ed NbWY[

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,4- NbWY[ m^[h[ j^[ ZhW_dW][ f_f[ YWd X[ WhhWd][Z m[bb0

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]Wi ,j^_dd[h WdZ ]Wieb_d[- YedY[djhWj[i WdZ h[jW_di0

,8- NbWY[ ijhed] [dek]^ je ikffehj j^[kd_j0

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Wi j[b[l_i_ed WdZ f_Wde X[bem _dZeeh kd_j0

@_h ekjb[j

307c

@_h ekjb[j

407c Ml[h

@_h _db[j

2053c

-38-

Page 39

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

40HdijWbbWj_ed Nh[fWhWj_ed

,3- Nei_j_ed e\ Y[_b_d] ef[d_d] X[jm[[d kd_j WdZ ikif[dZ_d] Xebj ,\hedj l_[m e\ kd_j-0

Ml[hbWf X[jm[[d Y[_b_d] WdZ ehdWc[dj fWd[b i^Wbb X[ 47cc

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C_ijWdY[ X[jm[[d

ikif[dZ_d] Xebji 757cc

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B[_b_d]

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Pkif[dZ_d] Xebji

372cc

542cc

82cc

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Qe ikffehj j^[kd_jm[_]^j .WdY^eh Xebj i^ekbZ X[ ki[Z _dj^[ YWi[ e\ j^[[n_ij_d] Y[_b_d]0 Eeh d[m Y[_b_d]. ki[ \bki^/_d jof[ Xebj. Xk_bj/_d jof[ Xebj eh fWhji fh[jWh[Z _dj^[\_[bZ0 A[\eh[ ]e_d] ed _dijWbb_d]. WZ`kij j^[Z_ijWdY[ je Y[_b_d]0

Oee\

@dY^eh Xebj Jed] dkj eh j^h[WZ

72 q372cc

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50 HdijWbbWj_ed e\ _dZeeh kd_j

Hd YWi[ e\ de Y[_b_d]

HdijWbb kd_j j[cfehWh_bo Nkj ikif[dZ_d] XhWYa[j ed j^[ ikif[dZ_d] Xebj je ^Wd] j^[kd_j kf0 A[ ikh[ je ki[ dkj WdZ mWi^[h Wj

Xej^ [dZ e\ j^[ Xh[Wa[j je i[Ykh[ \_hcbo0

@\j[h _dijWbbWj_ed ed j^[Y[_b_d]

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TWj[h fkcf WdZ \beWj_d] im_jY^_i _dijWbb[Z _di_Z[ _dZeeh kd_j.Y^[Ya \ekh Yehd[hi e\ j^[kd_j \eh _ji b[l[h ki_d] ^eh_pedjWb YecfWhWjeh eh NSB jkX[ m_j^ mWj[h0,H\ kd_j _ij_bj_d] W]W_dij j^[Z_h[Yj_ed e\ mWj[h ZhW_dW][.fheXb[c cWo eYYkh ed \beWj_d] mWj[h b[WaW][0-

-39-

Page 40

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Hd j^[ YWi[ e\ [n_ij_d] Y[_b_d]

,3-HdijWbb kd_j j[cfehWh_bo

Lkj ,Nh[fWh[ _d\[_bZ-

TWi^[h ,Nh[fWh[Z _d\[_bZ-

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EWij[d ,ZekXb[ dkji-

Pkif[dZ_d] Xebji

Hdi[hj

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b[l[b[h

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U i[Ykh[ j^[ mWi^[h \_hcboV

60 HdijWbbWj_ed e\ mWj[h ZhW_dW][ f_f[

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j[ jWf[0

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JWh][ i_p[ i[Wb fWZ

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-40-

ChW_dW][ ^ei[

97cc X[bem

722cc X[bem

Page 41

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

> Lej[ ?

Q^[ ibef[ e\ mWj[h ZhW_dW][ ^ei[ i^Wbb X[ m_j^_d 97cc . cWa[ j^[ ZhW_dW][ fbk] dej je X[Wh [nY[ii_l[ \ehY[0

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80 HdijWbbWj_ed e\ MhdWc[dj NWd[b

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j^Wj YWddej X[ Yedd[Yj[Z0

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FWi f_f[

J_gk_Z f_f[

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4/mWo lWbl[

_d] Wh[ Z_ifbWo[Z

-41-

Page 42

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Installation for wall mounted unit

Please read these "Safety Precautions" first then accurately execute the installation work. The precautionary points indicated herein are divided under two headings:

WARNING and CAUTION those points which are related to the strong possibility of an

installation done in error resulting in death or serious injury are listed in the WARNING section. However, there is also a possibility of serious consequences in relationship to the points listed in the CAUTION section as well.

In either case, important safety related information is indicated, so by all means, properly observe all that is mentioned. After completing the installation, along with confirming that no abnormalities were seen from the operation tests, please explain operating methods as well as maintenance methods to the user of this equipment, based on the owner's manual. Moreover, ask the customer to keep this sheet together with the owner's manual.

Please entrust installation to either the company which sold you the equipment or to a professional contractor. Defects from improper installations can be the cause of water leakage electric shocks and fires. Execute the installation accurately, based on following the installation manual. Again improper installations can result in water leakage, electric shocks and fires. Please install your air conditioner on a wall or any place which can holder the weight of the air conditioner. And it cannot be installed on a non-professional metal structure (such as a burglary-resisting net). Otherwise injury would occur due to a falling of the unit. Execute the prescribed installation construction to prepare for earthquakes and the strong airs of typhoons and hurricanes, etc. Improper installations can result in accidents due to a violent falling over of the unit. Wiring shall be done with the specified cable and the connection shall be firm and reliable. And the terminal connector shall be fixed firmly and reliably not to let external force exercise on the cables. Any improper connection or fixing would cause heat, fire, and other accidents. Wiring shall be done in a correct shape not to make any section rise upward, and accurately install the air conditioner. The cable shall not be clamped by the lid or outer plate. Any improper installation would lead to fire, heat, or other accidents.

When setting up or moving the location of the air conditioner, do not mix air etc, or anything other than the designated refrigerant (R407C) within the refrigeration cycle, for such mixing would result in rupture and injury caused by abnormal high pressure. Always use accessory parts and authorized parts for installation construction. Using parts not authorized by this company can result in water leakage, electric shock, fire and refrigerant leakage. The drain pipe must not be placed or connected into the sewage tank where harmful gas such as sulphurous gas and etc would exist, otherwise the harmful gas would enter the room. During installation, if the refrigerant is leaked, please immediately take measures of ventilation, otherwise a harmful gas would be generated whenever the refrigerant meets fire. After installation, please ensure that the refrigerant is not leaked, because the leakage of refrigerant would produce a harmful gas if it meets fire or heating stoves. Don't install the air conditioner where a flammable gas would be probably produced, otherwise in case the flammable gas is leaked and exists around the unit, fire would be caused. For the drain pipe, follow the installation manual to insure that it allows proper drainage and thermally insulate it to prevent condensation. Inadequate plumbing can result in water leakage and water damage to interior items. The refrigerant gas pipe and liquid pipe shall all be thermally insulated to preserve the temperature. Any improper insulation would make the unit moist and the water would drop onto the floor or wet the indoor items.

WARNING

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Page 43

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

PRECAUTION

Execute proper grounding. Do not connect the earth wire to a gas pipe, water pipe, lightening rod, or a telephone ground wire. Improper placement of earth wires can result in electric shock. An electric leakage breaker must be installed, otherwise electric shock or other accidents would occur. After completion of the installation, the air conditioner shall be electrified to check for electric leakage.

Preparation for installation

Installation Tools

1. Screw Driver (flat head, wabbler, triangle)

2. Steel Saw

3. 60mm Drill

4. Inner Hexagon Spanner

5. Shifting Spanner

6. Spanner

7. Pipe Cutter

8. Pipe Expander

9. Knives

10. Clippers

11. Leakage Checker or Soap Liquid

12. Measuring Tape

13. Scraper or File

14. Refrigeration Oil

Self-contained Accessories

No.

Name of Parts

Non-adhesive Tape

BCDEF

Adhesive tape

Connecting Hose

insulation

Gypsum powder

Drain hoseHeat

material

Electrical Requirements Power supply voltage: Single Phase 1PH, 220-230V~, 50Hz. A specialized power supply wire, which shall be installed by a competent person as per the rules of the national standard. Power supply must be grounded effectively. An electric leakage breaker shall be installed. Layout of power supply wiring shall be Y connection. If the power supply wire is damaged, it must be replaced by the manufacturer or its service center or professional person (the power supply wire shall be self-contained). For connection of the power supply plug, L shall be connected with the live wire, N shall be

connected with netural line, shall be connected with earth wire. Power supply wire parameters:H05RN-F,3 G(1.0-1.5)mm ; Signal wire parameters:H05RN-F,2 (0.75-1.5)mm . (User shall self-provide signal wire )

Note:The singnal wire and connection wire should be provided for oneself.

The singnal wire must be shielded wire

WARNING

BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH, EQUIPMENT MALFUNCTION AND/OR PROPERTY DAMAGE. BE SURE TO READ INSTALLATION MANUAL FOR INDOOR UNIT WITH THIS MANUAL.

-43-

Page 44

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

1.Accessories

Confirm accessories shown below are attached in the bag with this Installation manual.

Accessories Delivered with Your Air Conditioner

Please check if your unit is delivered with the following accessories.

No.

Name

12 3 4

Remote controller

Batteries

Mounting plate

Drain hose

4 25 screw

Expansion bushing

Cement steel nail

Piping hole cover

Screw

and

shape

Qty

1121

81 2

Indoor Unit

Install the indoor unit where the weight of the unit can be supported. Install the indoor unit where the heat source and steam source are not close and the Unit inlet and outlet are not blocked. Install the indoor unit where the drainage is easy and the outdoor unit can be Easily connected. Install the indoor unit where its cold air and hot air can be easily sent to all the comers of the room. Install the indoor unit where the power socket is near and there is sufficient space around the indoor unit. Install the indoor unit where there is no T.V set, radio set, and wireless appliance Underneath, and the sunlight lamp is over one meter away. If the remote controller is installed on the wall, the indoor unit shall be ensured to receive

The signal while the sunlight lamp is on.

Method for Cutting and Expanding Pipes.

When the pipe is too long or the mouth is damaged, the pipe needs to cut or expanded.

1.cutting hose

2.Removing burr

3.Put on nut 4.Expand Hose

10987

Plastic supporting plate

Correct

Hose Expander

cracks on expanded mouth

Expansion Size

Hose dia.

6.35 mm(1/4)

12.7 mm(1/2)

Not Correct

burr

-44-

Size (mm)A

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

When the mounting plate is firstly fixed

1. Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate

to be fixed against the wall, then temporarily fasten the plate with one steel nail.

2. Make sure once more the proper level of the plate, by hanging a thread with a weight from the central top of the plate, then fasten securely the plate with the attachment steel nail.

3. Making a Hole on the wall and Fitting the piping Hole cover Make a hole of 60mm in diameter, slightly descending to outside the wall. Install piping hole cover and seal it

off with putty after installation.

Indoor side

Wall hole

60mm

Outdoor side

Thickness of wall

4. Drawing of pipe

(Section of wall hole) Piping hole pipe

Rear piping Draw pipes and the drain hose, then fasten them with the adhesive tape. Left Left-rear, piping In case of left side piping, cut away, with a nipper, the lid for left piping. In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rear piping which is marked on heat insulation materials.

a. Insert the drain hose into the dent of heat insulation materials of indoor unit. b. Insert the indoor/outdoor electric cord from backside of indoor unit, and pull it out

on the front side, then connect them.

c. Coat the flaring seal face with refrigerant oil and connect pipes.

Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape.

Lid for right piping

Lid for under piping pipe

Heat insulation material

Drain hose

Lid for left piping

Piping

Pipe supporting plate

Indoor/Outdoor Electric cable

Fix with adhesive tape

Indoor/outdoor electric cord and drain hose must be bound with refrigerant piping by Protecting tape.

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Other direction piping

Cut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe according to the position of wall hole. When bending, be careful not to crash pipes. Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat insulation of connecting part specially.

5.Fixing the indoor unit body Hang surely the unit body onto the upper notches of the mounting plate. Move the body from side to verify its secure fixing. In order to fix the body onto the mounting plate, hold up the body aslant from the underside and then put it down perpendicularly.

Putty

Electric wiring

When connecting the cord before installing the indoor unit

Insert the cord from the back side of the unit, then pull it out on the front side. Loosen the screws and insert the cord ends fully into terminal block, then tighten the screws. Pull the cord slightly to make sure the cords have been properly inserted and tightened. After the cord connection, never fail to fasten the connected cord with the wiring cover. Note: when connecting the cord, confirm the terminal number of indoor and outdoor units carefully. If wiring is not correct, proper operation can not be carried out and will cause defect.

CAUTION

After connecting the p iping, check the joints for gas leakage with gas leakage detector.

HOW TO CONNECT WIRING TO THE TERMINALS

A. For solid core wiring (or F-cable)(Fig.17A)

(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 25mm of the exposed solid wire. (2) Using a screwdriver, remove the terminal screw (s) on the terminal board. (3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw. (4) Shape the loop wire properly, place it on the terminal board and tighten securely with the terminal screw using a screw driver.

B. For strand wiring (Fig.17B)

(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 10mm of the exposed strand wiring. (2) Using a screwdriver, remove the terminal screw (s) on the terminal board. (3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end. (4) Position the round terminal wire, and replace and tighten the terminal screw using a screw driver.

Fig. 17

A. Solid

Loop

B. Strand wire

Round terminal

Strip 25mm

Insulation

After passing the connection cord and power cable through the insulation tube, fasten it with the cord clamp, as shown in Fig.18

Strip 10mm

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Fig. 18

Screw with

Insulation tube

Cord clamp

Wire

Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.

special washer

Round terminal

Terminal board

Wire

Screw with special washer

Round terminal

Check the Layout of the Drain Pipe and Connection Wires

The drain pipe should be placed underneath, and the connection wires should be placed upside; and the drain pipe especially the section inside the machine and indoors must be wound up with insulating material to preserve heat. The drain pipe shall be sloped and no concave and convex shall occur along the whole pipe. And the cases as the right figure indicates shall not occur.

Installation check

Is power supply voltage required?

Is water completely drained to outdoors?

Are power wire and connection wires between indoor and outdoor units correctly connected?

Is any gas leaked from the pipe connectors?

Are series numbers of the terminals on the indoor and outdoor units corresponding to each other? Is the connection section of the auxiliary pipe insulated? Is the indoor unit fixed firmly?

Is noise big?

Trial Operation

The person who has completed this installation shall be requested to conduct a test operation for check: Is the temperature adjuster working normally? Does the location for installation conform to requirements?

Winding up with Protective Plastic Tape The connection pipes, drain pipe, and the connection wires shall be wound up with PVC tape. Notes: The connection pipes shall also be wound up with insulating material to preserve the temperature. The airing direction shall be from bottom to top.

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

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Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

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Commercial Air Conditioner Model: AU242FHBIA,

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-52-

Page 53

6. Parts and Functions

AU242FHBIA:

DLU LQOHW

DLU RXWOHW JULOOH

AU482FIBIA, AU48NFIBJA:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

FRPSUHVVRUnLQVLGHRI XQLWo

VWRS YDOYH

DLU LQOHW

DLU RXWOHW

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VWRS YDOYH

-53-

Page 54

:J[[N\\N ]WR\8

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a b c d e

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-54-

Page 55

Wall mounted unit:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

VLJQDO UHFHLYHU ZLQGRZ

DLU LQOHW JULOOH

DLU RXWOHW JULOOH

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-55-

Page 56

7. Controller functions

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ss sr

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-56-

|** uxz|,2-5-0~N

Page 57

Commercial Air Conditioner Model: AU242FHBIA,

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-57-

Page 58

Commercial Air Conditioner Model: AU242FHBIA,

Yan Mgj_f _jlla_ngq ^abjla mn]lneic Zehal jkal]nejiC

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-58-

Page 59

hj_`

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

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-59-

Page 60

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

YSOOW

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-69-

Page 70

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

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-70-

Page 71

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

8. Electrical Control Functions

8.1 Outdoor control principle:

No Item AU242FHBIA AU482FIBIA AU48NFIBJA

1. Startup period in cooling

mode: high

2. Cool, Dry mode: ƽCurrent state is Fan OFF

mode: TC˚21ć: low speed ƽ Current state is low

speed: TC˚30ć, med speed TC˘15ć, fan off ƽ Current state is med

speed: TC˚42ć, high speed TC˘22ć, low speed ƽ Current state is high

speed:

Fan motor

control

2 EEV In COOL, DRY, DEFROST state, EEV will open fully with 480 pulse.

TC ˘ 39 Current state is

med speed:

1. Startup period in heating:

High speed

2. Running state in heating:

ƽTA˚17ć running units capacityİ

1HP, low speed will be

ON and OFF in turns. ƽOther condition: TE˘7ć, high speed TE˚10ć, low speed

1. Startup period in cooling

mode: high

2. Cool, Dry mode: ƽ Current state is Fan OFF

mode: TC˚37ć: low speed ƽCurrent state is low speed: TC˚50ć, med speed TC˘30ć, fan off ƽCurrent state is med speed: TC˚47ć, high speed TC˘40ć, low speed ƽCurrent state is high speed: TC˘41ć, med speed ƽIn low speed: TC˘40ć, lower fan off TC˚42ć, lower fan startup

1. Startup period in heating:

High speed

2. Running state in heating:ƽ TA˚17ć running units capacity İ

1HP, low speed will be ON

and OFF in turns. ƽOther condition: TE˘7ć, high speed TE˚10ć, low speed

3. TE˚14ć, lower fan off TE˘12, lower fan startup

1. Startup period in cooling

mode: TA˚16 TAİ16ć, low speed

2. Cool, Dry mode:

ƽTA˚32ć, high speed ƽ15ćİTA˘31ć:

TC˚45ć, high speed 40 ć˘TC ˘ 44 ć , med

speed TC˘39ć, low speed ƽTA˘15ć: TC˘30ć, fan off TC˚50ć, low speed ƽIn low speed: TC˘36ć, lower fan off TC˚38ć, lower fan startup

ƽ 17 ć˚TA ˚ 15 ć, low

speed ƽ 14 ć˚TA ˚

speed

ƽTA˘9ć, high speed

ć, high speed

1. Startup period in

heating: TAı20ć, low speed TA˘20ć, high speed

2. Running state in

heating: ƽTA˚17ć: running units capacityİ1

HP, low speed will be ON

and OFF in turns. running units capacity ˚

1HP, low speed

10 ć , med

-71-

Page 72

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

control In heating mode, EEV will be adjusted due to the overheating value: SH= TS-TC

1. Adjust range: according to the compressor frequency, min open angle of EEV will be

different: high frequency, 120; med frequency, 110; low frequency, 90; the max open

angle: 470/350

2. Overheating modification: according to the discharging temperature, modify the overheating value, when Td>100ć, overheating value will decrease 2 at the standard overheating value; when Td İ 70 ć , overheating value will add 2 at the standard

overheating value

1. Secure operation conditions of 4-way valve:

ƽ After the outdoor receives the heating signal from indoor unit, if the 4-way valve is

not electrified before the compressor starts up, the unit will enter the 4-way valve

secure operation. ƽ After defrosting is over, the unit will enter the 4-way valve secure operation.

2. 4-way valve secure operation control: ƽ In heating mode, After the outdoor receives the startup signal from indoor unit, the

compressor will start up, (fan motor shutoff, EEV close) and when the frequency rises up

to 50Hz for 10 seconds, 4-way valve will reverse (meanwhile, fan motor will enter the

target speed, EEV enters the open angle of soft startup) and the unit enters soft startup

period. ƽ In defrosting, when the defrost condition is met, the compressor frequency will

decrease to 50Hz, 4-way valve will reverse (meanwhile, fan motor will enter the target

speed) and the unit enters soft startup period.

3. 4-way valve control in OFF state:

4-way valve will close after compressor stops for 30 minutes.

1. Enter condition:

when compressor

runs for 45 minutes

in all in heating

1. Enter condition: when compressor runs for 45 minutes in

all in heating mode, by checking TE and TA, if the below

conditions can be met for continuous 5 minutes, the unit will enter defrosting operation: TEİChTAˉ¢, herein,

ƽC˖TA˘0ć, C=0.8; TAı0ć, C=0.6

ƽ¢˖set as 12˄L˅,10˄M˅,8˄H˅ according to the

actual condition. At the easily defrosting place, set as H; at

the not-easy-defrosting place, set as L; when out of factory,

set as M

ƽTemperature limitation: -15ćEİTEİ2ćE

mode, by checking

TE and TA, if the

below conditions can

be met for

continuous 5

minutes, the unit will

enter defrosting

operation:

ƽWhen Ta˘2ć, TA-TE ı9ć for continuous 2

minutes; or Te ˘ -12 ć

for continuous 5 minutes;

ƽWhen Taı2ć, Te˘-5 ć for continuous 5

minutes;

Defrosting

4-way

valve

secure

operation

control

-72-

Page 73

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

2. Defrosting control:

When defrosting condition is met, compressor frequency will go down to the min.

frequency, and 4-way valve will be powered off and turn into cooling mode (fan motor off,

EEV in soft startup open angle); compressor frequency rises up to 78Hz and begins to

defrosting operation.

3. Quit condition:

ƽTE is over 7ć for 60 seconds in all or is up to 12ć, defrosting is over; ƽDefrosting accumulative time is up to 10 minutes, defrosting is over.

Unloading

valve SV1

valve SV2

Pressure

Electric

heater

control

Spray

control

switch

control

1. When TAİ27ć, if the compressor stops running, electric heater will be electrified;

2. When TAı27ć, or when compressor starts up, electric heater will be off; and temp. difference is 5ć.

1. To balance pressure: it will open 1 minute before compressor starts up, and keep open

in soft startup period after compressor starts up until the soft startup is over; in the

remaining operation and 10 minutes later after shutoff, SV1 will open;

2. Improve low pressure: in heating mode, when (TCǃTSǃTE)min. valueİ-13ć SV1 open, temp. difference is 3ć.

Adjust the SV2 according to the discharging temperature: when TDı115ć, SV2 will open; when TDİ110ć, SV2 will close.

High pressure switch protection:

ƽWhen input level of pressure switch is 1, it shows there is no protection. ƽWhen input level of pressure switch is 0 for a while, it shows high pressure beginning;

compressor stops and the unit alarms. The alarm can be resumable, the unit will alarm in

3 minutes when compressor is standby.

Low pressure switch protection:

ƽWhen input level of pressure switch is 1, it shows there is no protection. ƽ When compressor is running, if low pressure switch has acted for 3 minutes

continuously, the unit will alarm. When compressor stops, if low pressure switch has acted

for 30 seconds continuously, the unit will alarm. When compressor starts up, low pressure

switch will be shielded within 3 minutes. ƽIn defrosting and in 6 minutes after defrosting is over, low pressure switch will be

shielded.

-73-

Page 74

Compress

or capacity

output

control

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

In cooling mode, frequency will be calculated according to

the horse power of the running indoor units:

1. Every indoor unit will confirm 8 capacity codes

according to the difference between the set temperature

and the ambient temperature; then add all the capacity

code of the running indoor unit.

2. Divide the outdoor capacity into 13 capacity classes due

to the frequency; every capacity class is corresponding

with the different indoor capacity code; modify the relative

indoor capacity code due to the different ambient

temperature;

3. Compressor will confirm its target frequency according

to the sum of indoor capacity code;

Heating target frequency will be confirmed due to the indoor running horse power and the

outdoor ambient temperature:

F=C1(P-C2)+C3(7-T)+C4+C5(C6-TZ)

Herein: C1=16; C2=160; C3=32; C4=4500; C5=300; C6=45.

Cooling target frequency

will be confirmed due to the

indoor running horse power

and the outdoor ambient

temperature:

F=C1(P-C2)+C3(T-35)+C4

Herein: C1=22, C2=160,

C3=64, C4=4200;

-74-

Page 75

Commercial Air Conditioner Model: AU242FHBIA,

8.2 Indoor electric control functions:

AU482FIBIA, AU48NFIBJA

1 EEV control

Control

item

In cooling mode, the adjustment by the over heating: SH= TC1(gas pipe)-TC2˄liquid pipe˅

1. Adjust range: min. angle: 60/65, max. angle: 470/350˄data will take EEPROM as standard˅

2. Overheat modification: according to the discharging temperature, modify the overheat state, if Td > 100 ć, the overheat value will add 2 degree at the

base of standard degree;

3. Open modification: when EEV is at min. angle, the unit will measure the

difference between Tliquid and Ta at the interval of 5 minutes, if the

difference is within 5 degree, the valve will be back to base open angle and

modify the open angle due to the overheat state

In heating mode, adjust the open angle according to the conformity of liquid

pipe temperature.

1. Adjust range: indoor unit startup, min open angle: 100, max open angle:

470; indoor unit standby: open angle: 60.

2. The indoor EEV open angle will depend on the temperature difference

between indoor liquid pipe temp. and average liquid temp. of all running

indoor units. (if lower than average temp., the valve will open; if high than

average temp., the valve will close.

AE*FCBKA AS*FCBHA AB*FCBIA

Anti-freeze control in cooling mode:

ƔWhen liquid pipe temp. is below 7 degree for 40 minutes, or when liquid

pipe temp. is below 4 degree for 10 minute, the unit will enter anti-freeze

function. At this time, the current indoor EEV will close, and the fan motor will

turn into low speed from the current speed.

ƔAfter the anti-freeze function has worked for 10 minutes, and liquid pipe

Fan motor

control

temp. is over 7 degree, the unit will quit anti-freeze control (take the data in

EEPROM as standard).

Anti-cold air control in heating mode:

ƔWhen liquid pipe temp. is below 33 degree, indoor fan speed will turn into

low speed from the set speed; when liquid pipe temp. is below 25 degree,

indoor motor will stop.

ƔWhen liquid pipe temp. is over 30 degree, indoor fan speed will turn into low

speed from stop; when liquid pipe temp. is over 35 degree, indoor motor will

enter the set speed (take the data in EEPROM as standard).

-75-

Page 76

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

8.3 Temperature compensation adjustment (only for indoor unit with new PCB-AB**FCBIA):

For infrared control type unit, the temperature compensation can be adjusted. But for wired control

type unit, there is no temperature compensation.

Set the EEPROM by SWING (or SLEEP) button. For example:

Infrared control—in heating mode, press “ON/OFF” button to switch on the unit. Take the 24 degree

set temperature as the base point, press SWING (SLEEP) within 5 seconds, it will sound 2 times,

the unit will enter the heating temperature compensation mode, at this time, if you set the

temperature to 25 degree and switch off, the temperature compensation will be +1 degree; if you

set the temperature to 26 degree and switch off, the temperature compensation will be +2 degree,

and so on, the max. compensation can be +6 degree ( 30 degree); if you want to cancel the

compensation, adjust the temperature back to 24 degree.

Infrared control—in cooling mode, press “ON/OFF” button to switch on the unit. Take the 24 degree

set temperature as the base point, press SWING (SLEEP) within 5 seconds, the unit will enter the

cooling temperature compensation mode, at this time, if you set the temperature to 23 degree and

switch off, the temperature compensation will be -1 degree; if you set the temperature to 22 degree

and switch off, the temperature compensation will be -2 degree, and so on, the max. compensation

can be -8 degree ( 16 degree); if you want to cancel the compensation, adjust the temperature back

to 24 degree.

Read the temperature compensation value:

Infrared control type—change to cooling mode, the set temperature is 30 degree, in high speed.

Press SWING (SLEEP) 7 times within 5 seconds, the running LED will flash as the current temp.

compensation value.

Infrared control type—change to heating mode, the set temperature is 16 degree, in high speed.

Press SWING (SLEEP) 7 times within 5 seconds, the running LED will flash as the current temp.

compensation value.

8.4 Unit debugging:

1. Confirm indoor unit quantity

After the unit is electrified, you can check the indoor unit quantity by the outdoor dip switch or the

testing board. The display quantity must be in accordance with the actual quantity. If not, please

check if there is repeated unit No. or if the dip switch is broken, and if the communication wire is

connected correctly.

2. Confirm indoor EEV

FAQ:

2.1 The EEV communication wire is not in accordance with the indoor unit. If all the indoors are

running, the operation will be normal; when the only one indoor unit is running and it can not cool,

while the EEV of the unit not running opens.

2.2 The live wire and the neutral wire of the EEV power cable is not in accordance with those of

indoor unit power cable, E7 failure occurs.

2.3 The coil temperature sensor is not in original place or not fixed well, which cause EEV not work

properly. The efficiency will be bad or outdoor unit will be liquid return.

-76-

Page 77

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Only No.1 unit in cooling

If No.1 unit in cooling

If No. 1 unit in cooling—if yes, OK

If not

Short connect the corresponding terminal, open the EEV compulsorily. If it can open, check if the EEV communication wire is in accordance with that of indoor unit and modif

Can’t open

Check if EEV is installed properly, tap the EEV body, or reset.



Switch on all the indoor units in turn

Still not

Replace EEV PCB

Still not

If the refrigerant of the unit not running not

flow—if yes

If the refrigerant flows, check if the EEV communication wire is in accordance with that of indoor unit and modify.

If yes

Replace EEV

-77-

Page 78

3. Confirm cooling operation

(

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

start

Set the unit in cooling mode and begin to run

If indoor unit blows cold air

If air circulation is OK

Make all indoor units running

If temp. drop between air outlet/indlet is normal

Once outdoor stops, the unit

must run again 2 minutes

and a half later.

Confirm compressor state

Confirm the louver direction

If the operation voltage is OK

230Vf10ˁ˅

If the running current is 15% of the

nominal value (at max. frequency)

If working pressure is normal

normal

Check power voltage and power

circuit.

Check indoor/outdoor temp.

Check piping length and

refrigerant charge.

Check compressor running

frequency and if there is abnormal

noise

-78-

Page 79

4. Confirm heating operation

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA



start

Set the unit in heating mode and begin to run

If blowing warm air?

If air circulation is OK

Make all indoor unit running

If temp. drop between air outlet/indlet is normal

Once outdoor stops, the unit

can work only 2 minutes

and a half later

Confirm compressor state

Confirm the louver direction

If the operation voltage is OK

˄230Vˇ10ˁ˅

If the running current is 15% of the

nominal value (at max. frequency)

If working pressure is normal

normal

Check power voltage and powe

circuit.

Check indoor/outdoor temp.

Check piping length and

refrigerant charge.

Check compressor running

frequency and if there is

abnormal noise

-79-

Page 80

8.5 PCB information

᥻

AU242FHBIA PCB circuit diagram:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

7654321

CN21

CN9

CN10

CP250

CN11

CP250

ZEN2

FDG_1

561

CN12

CP250

+5V

R97 1K

LPRE_SW

C24 103

GND

1 2 3 4 5 6 78

ZEN1 561

CT_IN

8550

T38003

0.47UF

472

+5V

R38

R39

HPRE_SW

DQ5

CN34

9013

C36

C22

104

103

CN1

R24330

GND

R25330

R26330

R27330

R28330

R29330

+5V

R30

GND

560

LED3

RED

CN14

+5V

DQ1

R35 1K

C21103

GND

R40

R411K

CD21

R421K

4.7UF

R431K

CD22

R441K

4.7UF

CD23

4.7UF

CD24

4.7UF

R17 20K

R21 20K

R23 20K

CD25

R20

R22

4.7UF

20K

GND

R18

R11

10K

100

VD6

VD7 4148

4148

GND

C18103

R12

100K

C19

103

IC8

4011

C20103

GND

CT1 803

CT2 803

R98 1K

DQ6

9013

C25 104

0.47UF

PTC1

RL1

JTN1AS

CN16

+5V

R50

R51

R88

10K

DOWN

GND

CN5

SERIAL

CA1

1000PF*8

GND

AC2_IN

AC1_IN

+5V

RA2

RA-4(10KX4)

TX_IN

+5V

R6210K

C43

104

CX1 10MHz

C23 104

IC9

PST600D

GND

Ð¶ÔØ

CN35

R19

100

RL9 JQ-1A

SW07

SW06

C46 104

R34

CN22

CN23

Ñõ°É ÅçÉä ËÄÍ¨

R9 100

C9 103

C14 103

RL2 JQ-1A

6(5,$/29

)B83

)B'2:1

3:0B=

3:0B<

3:0B;

3:0B:

1&B*1'

3:0B9

3:0B8

+($7(5

(55

&23+($7

$&B&203

IC1

$&B,1

MB89P857

Pd(NOP)

$9&&

$95

$966

,30

HIV

LOWV

7;B,1

V-IN

1&B*1'

,17

567

02'

02'

3(1*6(

;,1

3)&B287

;287

*1' 1&

)$1B6:

7;B287

'&567

309B$

309B%

309B&

309B'

3)&B,1

CN8

CN6

CN7

CN4

¼ÓÈÈ´ø ·ç»ú

100

103

+5V

RL3

RL4

JQ-1A

RL5

JQ-1A

RL8

JQ-1A

SV2

IC5

ULN2803

0,'

3&7

LOW

:$<

GND

HPRE_SW

LPRE_SW

TX_OUT

PFC_OUT

PFC_IN

GND

CD16

16V/100UF

+12V

CN15

GND

RA-4(10KX4)

+5V

R67

+5V

10K

IC4

ULN2003

SV2

+5V

RL6

R87

R86

JQ-1

10K

RL7 JQ-1

+12V

JP1 JP2

GND

CD14 16V/100UF

+5V

C28

CD17

104

16V/100UF

GND

RA1

CJ1

LED4

R99

+5V

10K

GND

RED

C27

IC7

104

93C46

R66

10K

GND

R91 10K

R77

CN25

R78

GND

CN24

COOL

R79

R80

HEAT

R81

SS/TEST

100K

GND

H,C

JP2

4051IN

+5V

C49

104

GND

595SI

595SCK

595RCK

4051S1

4051S2

GND

4051S3

CX2 16.0MHz

C44 104

+5V

AC1_IN

AC2_IN

CN26

IC2

P33

P32

P34

P31

P35

P30

P36

P10

P37

P11

P12

VREF

P13

AVDD

P14

AVSS

P40

P15

P41

P07

P06

P42

P05

P43

P44

P04

P45

P03

P46

P02

P47

P01

VSS

P00

XIN

P20

XOUT

_RST

TEST

P22

VDD

P21

TMP86FH46N

+5V

IC11 7805

+12V

7805

C48

CD18

C30

104

220UF

104

GND

+5V

VD8 4148

VD1

R48

R36

4148

CD13

R37

100UF

C15

103

+5V

VD9 4148

JP1

TO857

FR857

FR1007

1007A

1007B

SERIAL

COM_LED

SCL

SDA

R15 180K

GND

+12V

CN30

GND

R82

CD15

R83

R72

100UF

10K

+5V

R92

STOP

R93

R94

TX_OUT

R95

R84

100

TX_IN

R85

100

CN19

GND

C23

104

GND

R31 10K

+5V

R1010K

R32

560

LED2 RED

R46 10K

CN3

CT_IN

SGND

GND

SW05

START

GND

+5V

IC10

PST600D

GND

R47 10K

ZD2

18V

CD3

10UF

*1'

62)7)%,6

C29

104

CD1 2.2UF

CN32

R96 100K

9&&

SW04

R3 560K/1W

IC3

C47

MM1007

101

,1

+12V

9&

,1

104

*1'

9

C45

'2B

GND

'2B

',1

'2B

',1

'2B

R68 10K

C26 104

24C02

IC6

R71 10

IC13

'5$,1

ICE2A165

R7 2

R6 2

+5V

R45

R63

+5V

10K

VD14FR102

T28051

47K/2W

472

VD15

VD12

FR102

VD16

VD11 FR106

FR102

VD17 FR102

VD20HER204

SGND

IC12

TLP421

CD20

VD22

100UF

FR102

VD21

HER204

ZD1

471

11V

Title

Date: 3-Sep-2005 Sheet of File: C:\Documents and Settings \dupeng\

+5V

PFC_OUT

PFC_IN

C42

103

CD2 1UF

CN27 XP-9A

R53

5.6K

R545.6K

R56

R76

5.6K

GND

+5V

CN31

R74 10K

R73

560

R75

GND

R13

100K

R14

100K

GND

R70

ZD5

4.7K DQ3

5.6V

9013

ZD6

5.6V

R64

10K

DQ4

R65

ZD3

9013

5.6V

10K

R69

ZD4

4.7K

5.6V

GND

CN2

CD8 100UF

CD9 100UF

R55

CD10

5.6K

100UF

5.6K

CD11 100UF

+12V

CD12 1000UF

Number RevisionSize

Drawn By:

Ḡ䴶\ᴼᑇথ䖛ᴹⱘ݇Ѣ80ⱘ

C13

104 C12104

C10104

C11

104

CN13

CD6

CD4

100UF

CD7

CD5

100UF

GND

-80-

Page 81

AU482FHBIA PCB circuit diagram:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

-81-

Page 82

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

AU48NFIBJA PCB circuit diagram:

+5V

R303

R302

R301

4.7k

D303

D302

D301

6 - 1N4148

+5V

+5V SK

CN302

TXD

RXD

GND

R306

ÏÔÊ¾¹¤×°

100¦¸

XH5-5»Æ

4 - 1N4148

+5V

CN303

SK TXD

RXD

GND

R310

485Í¨Ñ¶

100¦¸

XH5-5À¶

C310 100uF

CN304

1 2

HBS

XH2-2ºì

CN311

+5V

Tsink

XH2-2½ðÉ«

CN312

+5V Tt

1 2

XH2-2ÂÌ

CN313

+5V

XH2-2°×

CN314

+5V

XH2-2»Æ

CN315

+5V

XH2-2ºÚ

CN316

+5V

XH2-2À¶

1 2 3 4 5 6 78

D306

D305

D304

+5V

D308

D307

D310

D309

C309

100uF

C307

100uF

C308 100uF

4 - Z_5.6V

Z302

QN301

Z303

NPN_2222A

C311204

R312

C312204

100k¦¸

+5V

R313 270¦¸

R314 10k¦¸/1%

R315 270¦¸

R316 10k¦¸/1%

R317 270¦¸

R318 10k¦¸/1%

R319 270¦¸

R320 10k¦¸/1%

R321 270¦¸

R322 10k¦¸/1%

R323 270¦¸

R324 47k¦¸/1%

C302 471

R307

4.7k

C305 471

R311100k¦¸

R304

P3.2

100¦¸

R305

TXD1

100¦¸

RXD1

C303

C304

471

R308

4.7k

R309

TXD0

100¦¸

RXD0

C306 471

Z304

QN302

IC309

P2.3

d_outb

Z305

NPN_2222A

P0.7

C313 472

P0.5

C314 472

P0.4

C315 472

P0.3

C316 472

P0.2

C317 472

P0.1

C318 472

D_INA

D_OUTB

D_OUTA

d_outa

Vcc

IN2

IN1

MM1007

D_INB

D_OUT

P2.4

GND

+12V

Vin

P2.2

+5V

+12V +5V +5VA GND GNDA

CN202

+5V

CN301

4 5

XH5-5°×

P0.0

P0.7

P0.5 P0.4 P0.3 P0.2 P0.1 P0.0

+5V

R326

2.7k¦¸ R327

2.7k¦¸

P2.1

IC302

P2.7

GND

C320

104

+12V

P2.5

ORG

P3.4

VCC

93C66

+5VA

+5V

+12V

C331 104

+5VA

C319 104

p0.6/a6/t1clk/pm.2

ANGND

Vref

P0.5/A5/PM.1

P0.4/A4/PM.0

P0.3/A3

P0.2/A2

P0.1/A1

P0.0/A0

P2.1

P2.0/EPA0/PVER

P2.1/SCLK0/BCLK0/PALE

P2.2

P2.3

P2.7

P2.2/EPA1/PROG

P2.3/COMP3

P2.7/SCLK1/BCLK1

P2.4

P2.5

P2.4

P2.5

B30116MHz

C321 30pF

+5V

C301 47uF

R325 470¦¸

+5V

R328 100k¦¸

TXD0

p1.0/txd0

p0.7/a7/t1dir/pm.3

P6.7/PWM1

P2.6/COMP2/CPVER

C322 30pF

LED301 LED_GREEN

IC303E

C326

74HC14

22uF

TXD1

RXD0

RXD1

GUP

GVP

GUN

GVN

Vss

p1.1/rxd0

P6.1/WG1

P6.0/WG1

P6.2/WG2

P6.3/WG2

P6.4/WG3

P1.2/TXD1

P1.3/RXD1

N87C196MH

EXTINT

Vss

XTAL1

XTAL2

P6.6/PWM0

P5.1/INST

P5.4

P5.6/READY

ALM

C323

471

GWN

P6.5/WG3

Vss

+5V

R329

4.7k

IC303D

RESET

74HC14

+5V

C325 104

R330 4. 7k

GWP

Vss

Vcc

NMI

RESET

P3.0/AD00 P3.1/AD01

P3.2/AD02

P3.3/AD03 P3.4/AD04

P3.5/AD05 P3.6/AD06 P3.7/AD07

P4.0/AD08 P4.1/AD09 P4.2/AD10

P4.3/AD11 P4.4/AD12

P4.5/AD13

P4.6/AD14

P4.7/AD15

P5.2

P5.7

P5.3/RD

P5.5/BHE

Vpp

P5.0/ALE

4148

RESET

IC301

P3.0 P3.1

P3.2

P3.3

P3.4

P3.5

P3.6

P3.7 P3.7

26 25 24 23

21 20 19

18 17

+5V

15 14

Vcc

+5V

RA303

RA302

+5V

RAA09103

+5V

R331

D311

P3.4

P3.0 P3.1 P3.2 P3.3 P3.4 P3.5 P3.6

C324 104

10k¦¸

R332

4.7k

C330

D313

D312 4148

P3.2

P3.0

+5V

RAA09103 RA301

+5V

471

4148

R335220¦¸

C327 103

+5V

R336 10k¦¸

ALM

QN303

NPN_2222A

R3378.2k¦¸

P0.0

C328 472

IC303C

74HC14

IC303B

74HC14

IC303A

74HC14

IC304A

74HC14

IC304B

+5V

74HC14

IC304F

74HC14

IC304E

74HC14

IC304D

74HC14 IC305C

74HC14

IC305B

74HC14

IC305D

74HC14

+5V

IC305F

74HC14

IC305E

74HC14

IC305A

74HC14

IC304C

74HC14

7654321

+5V

R334

IC303F

74HC14

R338 10k¦¸

R339 270¦¸

10k¦¸

Z301

D314

4148

D315

4148

1 2

3 4 5 6 7

2 3

5 6 7

8 9

R333 1k¦¸

IC306D

LM324

IC306C

LM324

D316

4148

C329 105

R344

2.7k¦¸

D317

4148

D318 4148

R345 10k¦¸/1%

IC306B

LM324

R348 10k¦¸/1%

IC307

OUT 1

IN 1

OUT 2

IN 2

OUT 3

IN 3

OUT 4

IN 4

OUT 5

IN 5

OUT 6

IN 6

OUT 7

IN 7

OUT 8

IN 8

DIODE CLAMP

GND

C332

ULN2803A

104

IC308

OUT 1

IN 1

OUT 2

IN 2

OUT 3

IN 3

OUT 4

IN 4

OUT 5

IN 5

OUT 6

IN 6

OUT 7

IN 7

OUT 8

IN 8

DIODE CLAMP

GND

C333

ULN2803A

104

Title

Date: 11-Aug-2004 Sheet of File: C:\Documents and Settings\shibin\×ÀÃæ\KR-160~2.DDBDrawn By:

QP301 PNP_3906

CN105

CN306

TRIP

GUP

GVP

GWP

GUN

GVN

GWN

ALM

GND

XH9-9°×

P3.6

+5V

P3.5

R340 1k¦¸/1%

R341

8.2k¦¸/1%

R342 1k¦¸/1%

P3.1

R343

P3.3

JP301

2.2k¦¸

JUMPER

P3.7

IC306A

LM324

R34610k¦¸/1%

+12V

R347

10k¦¸/1%

+5V

R349 10k¦¸/1%

16 15 14 13

12 11

+12V

18 17 16 15

14 13

ALM

+12V

P0.6

º£¶ûKR-160W/(BP)S¿ØÖ

Number Revis ionSize

R350

4.7k

+12V

C334

104

CN317

XH2-2ÒøÉ«

CN318

XH2-2Ç³»Æ

R351 10k¦¸

CN308

XH2-2°×

CN307

XH2-2°×

CN309

2 3 4

XH4-4°×

CN310

2 3 4 5

XH6-6½ðÉ«

μзЧУЕтХН·§PMV

CN305

2 3

4 5 6 7

8 9 10 11

12 13

XH13-13°×É«

CN203

+5V

+12V FAN1

+12V FAN2

SPRY Vo GND +12V

+12V +12V

A B C D

GND

W_P HEAT SV1 SV2 4_WAY Ox_P F_M_R F_L F_H

GND

QP302

PNP_3906

R352 330¦¸

LED302

LED_RED

+12V

V1.0A00000013

C335 104

-82-

Page 83

Commercial Air Conditioner Model: AU242FHBIA,

8.6 Dip switch and the ports on PCB functions

AU242FHBIA ports on PCB:

Ports Ports name Wiring method

CN1 IPM-OUT IPM output control line CN2 IPM-POWER To 4-way 15V power source CN3 +310V ,GND

CN4 Fan motor port To fan motor

CN5 SERIAL 857 detecting serial port

AU482FIBIA, AU48NFIBJA

 To 310V DC power source

CN6

CN7 Live line of electric heater To live line

CN8

CN9 Live line of power source To live line

CN10

CN11 Live line of power source To live line

CN12 Earthing line To earthing line

CN13 Communication port To communication line

CN14 Sensor port

CN15 EEV port To EEV

CN16 High pressure switch port To high pressure switch

CN19 SERIAL 846 detecting serial port, no used

CN22 Spray valve port To spray valve

CN23 Oxygen generator port To oxygen generator (optional)

Four-way valve port To four-way valve

Neutral line of electric

heater

Neutral line of power

source

Including defrosting, discharging, ambient, air

return, evaporating temp. sensors

To neutral line

CN27 Indicator board To exterior testing device, showing failure code

CN30

CN32

CN34 Low pressure switch port To compressor low pressure switch

CN35 Unloading port To unloading valve

Compressor current

detecting

+15VˈGND

To compressor current detecting board

————

-83-

Page 84

Commercial Air Conditioner Model: AU242FHBIA,



AU482FIBIA, AU48NFIBJA

AU48NFIBJA PCB ports name and functions

Ports Ports name Wiring method

R, S, T Power supply ports To power of 3 PH, 380V, 50Hz

U, V, W Compressor ports To motor (pay attention to phase sequence)

E Grounded port

N Neutral wire port

L1, L2 Reactance port To wire of reactance (non-polar)

CN102 Current transducer port To current transducer

CN211, CN212 Fan motor port To fan motor

CN205 Water pump port To water pump (be spare)

CN206 Electric heater port To electric heater

CN207 Solenoid valve port To solenoid valve

CN208 Solenoid valve port To solenoid valve

CN209 Four-way valve port To four-way valve

CN210 Oxygen generator port To oxygen generator (blank temporarily)

CN303 Testing board port

CN304 Communication port To C1, C2 of communication block

Grounding (less than 10Ȧ;more thanȻ1.6mm)

If 3 phase, it is connected to neutral wire; if 1 phase, it is blank.

To testing board. Used to modify, check data for after sale personnel.

CN307, CN308

CN310 EEV port To outdoor electronic expansion valve

CN311 Radiator temp. sensor port To radiator temp. sensor (blank temporarily)

CN312

CN313 Defrosting temp. sensor port To defrosting temp. sensor

CN314 Ambient temp. sensor port To ambient temp. sensor

CN315 Suction temp. sensor port To compressor suction temp. sensor

CN316 Discharging temp. sensor port To discharging temp. sensor

CN317 Low pressure switch port To low pressure switch

CN318 High pressure switch port To high pressure switch

Fan motor port for dispersing heat

Mid-condenser temp. sensor port

To fan motor for dispersing heat (be spare)

To mid-condenser temp. sensor

-84-

Page 85

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Below we will comment for the functions of some ports and some changes of PCB 0010451530 and 0010451531:

1. Control Board 0010451530

Herein, the control board we are concerned is the board without CPU. Functions for every port are as

follows:

CN301: port for power supply, connected with CN202 of the power board.

CN302: connected to testing board.

CN303: connected to the computer serial port through the testing device.

CN304: HBUS communication port.

CN305: the driving port for relay, connected to CN203 of the power board.

CN306: the driving port for IPM, connected to CN105 of the power board.

CN307, CN308: port for the heat-emitting fan. No used at present.

CN309: port for the main relay and for testing current, connected to CN104 of the power board.

CN310: the driving port for electronic expansion valve.

CN311: testing port for the radiator temperature. No used at present.

CN312: testing port for the coil temperature Tt.

CN313: testing port for the defrosting temperature Te.

CN314: testing port for the outdoor ambient temperature Ta.

CN315: testing port for the suction temperature Ts.

CN316: testing port for the discharging temperature Td.

CN317: port for the signal of compressor overheat protection initially,but now for low pressure switch.

CN318: port for the signal of high/low pressure protection,but now only for high pressure switch.

Control board 1 Control board 2 Control board 3

Totally there are 3 types of control board, because they have different appearance, you will distinguish them

much easier.

Control board 1 is the earliest edition, because this board is rather big and it will cover the fixing screw

which supports the electric control box, also taken into consideration the convenient installation and service,

we modified and designed the Control board 2.

Control board 2 is the second edition, because there are electric parts on both sides of this board, and

-85-

Page 86

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

hard to be installed, we designed the Control board 3.

Contro l boa rd 3: the current edition. Now the part number of control PCB is 0010451971

instead of 0010451530. The new control board(0010451971) also can be used as 0010451530,but the connector

"OH" must be shorted.

2. Pow er board 0010451531

There are two types of power board, and they have the same dimensions, but have the different voltage

testing parts. That is easy to distinguish.

The newly power board adopts the voltage sensor to test the voltage. On the board there is a black square

type voltage sensor. The old board adopted the LM331 to test the voltage, which is an inserted part IC with

8 feet.

However both the new or old power boards can match any of the control board, but the CPU diagrams are

different.

3. Fil ter board 0010451536

Originally, the electric control box has not any filter board. In order to avoid the exterior interference and

result in the bad communication, the second edition (current edition) are all added the filter board.

-86-

Page 87

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

8.7 Testing board for AU48NFIBJA:

Press button “mode”, the display will change over in the following sequence:

State

Display

Frequency Fxx.xx

Current output A xx.x

5XQ 6WRS 'HIU &RRO +HDW

Voltage on DC side U xxx

Ambient temp 1 xx

Discharging temp 2 xx Suction temp 3 xx Defrosting temp 4 xx

Coil temp 5 xx

5XQ

6WRS

&RRO +HDW

0RGH

3URJ

(QWHU

Indoor unit quantity 6 xx Open degree of EEV 7 xxx

Note: Please connect the wire on power off. Insert the testing board on the CN302 of the outdoor PCB. The part number is 0010451601. In addition, we set a testing port CN303 which can be connected to the computer through another testing device (part number: 0010451800). The distributor can get the testing device and the testing software from us. Testing procedure:

1. After the unit powered off, connect the wire of testing board to CN302 port, and then pull

down the communication wire between outdoor and indoor unit.

2. Check if the wiring is right. If yes, power on the outdoor unit.

3. On the operation panel of the testing board, the relative data can be modified.

4. Press “Prog.”, enter data editing mode.

5. Set data “Pr-00” as “0”ˈthen data can be edited. Press “Enter” to confirm.

6. The other data can be set according to the requirement like this way.

7. After all the data be modified, set “Pr-00” as “1”.

8. Press “Prog.”, quit out of data editing mode.

9. Note: Data of the chip is very important, the improper modification will cause the main

parts damaged such as compressor. So before modification, please contact with us.

10. After quitting from data editing mode, operation board will display “P r.E” which will

flash. After 3 minutes, it will display “b.P.160”. At this time, pressing the

to reset

the program.

11. After reset, power off the outdoor. For 1~2 minutes, the outdoor release all the electricity,

plug the communication wire between outdoor and indoor to the original position, the modification is over.

-87-

Page 88

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

8.8 AU482FIBHA: function specification of SW01, SW02, SW04, SW05, SW06, SW07 Table 1 SW01 SW02 Display of 7 segments LED (LD1,LD2,LD3)

0 FFF shows capability overloading (if capability overloading function is chose)

Outdoor diagnosis code when without diagnosis code, display: - 1 Outdoor running mode cooling: C heating: H defrosting: J 2 Defrosting area set: display 1------shows that L is set at “12”

display 2------shows that L is set at “10”

display 3------shows that L is set at “8”

When the following condition is available, the unit enters into defrosting running:

(TE: defrosting temp., TA: ambient temp.)

TEİChTAˉ¢

Note˖C˖TA˘0ćˈC=0.8

TAı0ćˈC=0.6

The value of ¢ can be set according to the selection of jump wiring:

selection of jump wiring L M H ¢(ć)

4 5 6 7 Back up running: TS sensor: 1 , TE sensor: 1

INV command frequency˄decimalism˅ e.g.120 stands for 120HZ

INV receiving frequency˄decimalism˅ e.g. 84 stands for 84HZ

Quantity of indoor units connected˄decimalism˅ e.g. 6 stands for 6 indoor units

This function is preset and not available.

12e 10e 8e

8 Back up running: TA sensor: 1 , mid-section temp. sensor: 1

This function is preset and not available. 9 Back up running: PD sensor: 1 , PS sensor: 1

This function is preset and not available. 13 Display compensation of capacity class: 4------class 4, 6-----class 6

After the start-up of system is over, the frequency of compressor has gotten the

target frequency confirmed by the request of indoor unit capacity for 5 minutes,

and then the unit will modulate the capacity.

(Note: class 4 and class 6 can be selected. Class 4 is that the capacity class

whose range is from 4 classes higher to 3 classes lower than the target frequency.

Class 6 is that the capacity class whose range is from 6 classes higher to 4

classes lower than the target frequency. For the unit without pressure sensors,

there is no this function.) 14 Display “U” shows that indefinite capacity is chose

Display “d” shows that definite capacity is chose (indoor total capacity can’t be

over 130%˅ 15 Display o1-----stands for HP

Display o2-----stands for HP

Display H1-----shows that can be connected with central communication

0 1 2 3 4 Mid-section of coil pipe sensor data (decimalism)

5 6 7

8 9 10 Outdoor running current (decimalism)

TD sensor data˄decimalism˅

TA sensor data˄decimalism˅

TS sensor data˄decimalism˅

TE sensor data˄decimalism˅

Pd sensor data˄display corresponding saturation temperature˅

Ps sensor data˄display corresponding saturation temperature˅

Opening degree of outdoor PMV1˄decimalism˅

Opening degree of outdoor PMV2˄decialism˅

2-way valve switched on: SV ON˖

1ˈno switched on: --

-88-

Page 89

˖ ˖

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

11 12 13 14

4 0—15 Indoor diagnosis code, no diagnosis code: --this function is preset 5 0—15 Indoor HP

6 0—15 Indoor required capacity (decimalism) indoor P-CODE 7 0—15 Indoor PMV opening degree (decimalism) 8 0—15

9 1—16 10 1—16 11 1—16

12 1—16 Single cool trial run--this function is preset 13 1—16 Single heat trial run--this function is preset

2 3

4 Heat trial run: H --this function is preset 5 Swing trial run: _F--this function is preset 6

7 Clean abnormal function: CL--this function is preset

8 9 10 11 Outdoor rated setting: -F

0—7 8 Display quantity of communicating indoor unit, e.g. : 6 shows that 6 indoor units

Outdoor fan mode :_1˄low speed˅,_2˄med speed˅,_3˄high speed˅ Temperature sensor ON display ON˖ Four-way valve switched on: ON˖ Running mode selection cooling˖

Dispatch line check cooling Dispatch line check heating Cool trial run

Indoor unit uniform start/stop

--this function is preset

Outdoor PMV1fully openǃclose function: fully open: FF, fully close: 00 Outdoor PMV2 fully openǃclose function: fully open: FF, fully close: 00 Indoor PMV fully openǃclose function˖fully open: FF

Indoor communication state: receiving normal˖

are working.

new code:0 stands for 0.8HP, 1 stands for 1HP, 2 stands for 1.2HP, 3 stands for 1.5HP, 4 stands for 2HP, 5 stands for 2.5HP, 6 stands for 3HP, 7 stands for 4HP Old code: 1 stands for 1HP,7 stands for 7HP

Indoor saturation temperature (decimalism) -26.0—67.0˄account according to outdoor suction pressure PS˅ Indoor sensor TA temperature˄decimalism˅-26.0—67.0 Indoor sensor TC2 temperature˄indoor gas pipe˅˄decimalism˅-26.0—100.0 Indoor sensor TC1 temperature˄indoor liquid pipe˅˄decimalism˅-26.0—100.0

C --this function is preset

1 Four-way valve not switched on: OFF˖_ _

C, heating: H

CC --this function is preset HH--this function is preset

run: 11/stop: 00˄display -- after 3 minutes

1ˈOFF˖--

1 receiving abnormal:

Combination control with outdoor switches

Table 2 function summary Method of set, cancel

Cool trial run Indoor trial run in cooling

mode, the function is the same as trial run with remote controller, the indoor unit which trials run fixes the temp. difference as max. temp., and send it to outdoor, the other control is similar with normal.

Heat trial run Indoor trial run in heating

mode, the function is the same as trial run with remote controller, the indoor unit which trials run fixes the temp. difference as max.

[set] SW01“2”, SW02“03”, press SW04 for more than 2 seconds, after set of trial run success, LD will always display –C until the function is cancelled. [cancel] in trial run state, SW01“02”, SW02“03”, press SW05 [set] SW01“2”, SW02“04”, press SW04 for more than 4 seconds, after set of trial run success, LD will always display –H until the function is cancelled. [cancel] in trial run state, SW01“02”, SW02“03”,

ress

-89-

Page 90

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

temperature, and send it to outdoor, the other control is similar with normal.

Swing trial run Indoor trial run in swing

mode,the control is the same as swing trial run with remote controller.

Uniform running Indoor is uniform running

The indoor running mode is corresponding with the setting or memory of remote controller.

Uniform stop Indoor uniform stops [set]

Indoor PMV

fully open compelled

Rated running Set the unit rated running [set]

Outdoor PMV1 fully open, closed function

Indoor PMV fully open compelled in 2 minutes

Outdoor PMV1 compelled fully

open or close in 2 minutes

SW05

[set] SW01“02”, SW02“05”, press SW04 for more than 2 seconds, after set of trial run success, LD will always display –F until the function is cancelled. [cancel] in trial run state, SW01“02”, SW02“05”, press SW05 [set] SW01“02”, SW02“05”, press SW04 for more than 2 seconds, after set of trial run success, LD will display FF for 5 seconds. [cancel] cancel according to operation of remote controller

SW01“02”, SW02“06”, press SW05 for 2 seconds, after set success, LD will display FF for 5 seconds. [cancel] cancel according to operation of remote controller [set] SW01“2”, SW02“10”, press SW04 for more than 2 seconds [confirmation] in 2 minutes, 7-segment LED of base board I/F will display “FF” all the time [cancel] the control software will recover PMV to normal open degree after 2 minutes ˄ after indoor software receives the signal of fully open from outdoor, PMV will fully open only in 2 minutes.˅

SW01“02”, SW02“11”, press SW05 for more than 2 seconds, after setting success, LD will display –F, shows that the unit may enter rated running mode, afterwards you can set SW06, SW07.SW06 is used for increasing frequency, while SW07 is used for decreasing frequency. [cancel] cancel according to operation of remote controller [set] SW01“3”, SW02“9”, press SW04 for more than 2

seconds [confirmation] in 2 minutes, 7-segment LED of base board I/F will display “FF” all the time [cancel] the control software will recover PMV to normal open degree after 2 minutes ˄ after indoor software receives the signal of fully open from outdoor, PMV will fully open only in 2 minutes.˅

-90-

Page 91

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

Outdoor PMV2 fully open, closed function

Outdoor PMV2 compelled fully

open or close in 2 minutes

[set] SW01“3”, SW02“10”, press SW04 for more than 2 seconds [confirmation] in 2 minutes, 7-segment LED of base board I/F will display “FF” all the time [cancel] the control software will recover PMV to normal open degree after 2 minutes ˄ after indoor software receives the signal of fully open from outdoor, PMV will fully open only in 2 minutes.˅

2. Specification for SW03

The two switches of SW03 should be ON or OFF at the same time.

-91-

Page 92

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

8.9 Sensor characteristic

model sensor number sensor name sub-sensor number characteristic

R25=10Kȍ±3% B25/50=3700K±3%

R80=50Kȍ±3% B25/80=4450K±3%

R25=10Kȍ±3% B25/50=3700K±3%

R25=10Kȍ±3% B25/50=3700K±4%

R80=50Kȍ±3% B25/80=4450K±3%

R25=10Kȍ±3% B25/50=3700K±4%

R25=10Kȍ±3% B25/50=3700K±3%

R25=23Kȍ±2.5% B25/50=4200K±3%

R25=10Kȍ±3% B25/50=3700K±3%

AU482FIBIA

AU48NFIBJA

AB092FCBIA AB142FCBIA AB182FCBIA

AE072FCBKA AE092FCBKA AE122FCBKA AE142FCBKA AE182FCBKA AE242FCBKA

0010450192 outdoor ambient temp. sensor 001A3800082

0010450193 suction temp. sensor 001A3800093

0010450194 defrosting temp. sensor 001A3800093

0010450195 mid-condenser temp. sensor 001A3800093

0010450196 compressor discharging temp. sensor 001A3800096

0010450194 defrosting temp. sensor 001A3800093

0010451328 pipe temp. sensor 001A3800093

0010451511 discharging temp. sensor 001A3800096

0010451513 suction temp. sensor 001A3800093

0010451514 ambiet temp. sensor 001A3800082

0010450699 pipe temp. sensor 001A3900004

0010451327 ambiet temp. sensor 001A3900003

0010450699 pipe temp. sensor 001A3900004

AS072FCBHA AS092FCBHA AS122FCBHA AS142FCBHA AS182FCBHA AF092FCBHA AF122FCBHA

001A3800103 liquid pipe temp. sensor 001A3900004

001A3900059 coil temp. sensor

001A3900003 001A3900004

R25=10Kȍ±3% B25/50=3700K±3%

1.R25=10Kȍ±3% B25/50=3700K±3%

2.R25=23Kȍ±2.5% B25/50=4200K±3%

-92-

Page 93

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

R80=50Kȍ±3% B25/80=4450K±3%

T(ć)

-30 11600 24 536.6

-29 10860 25 511.1 -19 85.72 35 6.68

-28 10170 26 486.9 -18 80.96 36 5.43

-27 9529 27 464 -17 76.51 37 5.6

-26 8932 28 442.3 -16 72.33 38 5.59

-25 8375 29 421.7 -15 68.41 39 5.73

-24 7856 30 402.1 -14 64.73 40 5.52

-23 7372 31 383.6 -13 61.27 41 5.32

-22 6920 32 366 -12 58.02 42 5.12

-21 6498 33 349.3 -11 54.97 43 4.93

-20 6104 34 333.5 -10 52.1 44 4.9

-19 5736 35 318.4 -9 49.4 45 4.58

-18 5392 36 304.1 -8 46.86 46 4.42

-17 5071 37 290.5 -7 44.46 47 4.26

-16 4770 38 277.6 -6 42.21 48 4.11

-15 4488 39 265.3 -5 40.08 49 3.97

-14 4225 40 253.6 -4 38.08 50 3.83

-13 3978 41 242.5 -3 36.19 51 3.7

-12 3747 42 232 -2 34.41 52 3.57

-11 3531 43 221.9 -1 32.73 53 3.45

-10 3328 44 212.3 0 31.14 54 3.33

-9 3138 45 203.2 1 29.64 55 3.22

-8 2960 46 194.5 2 28.22 56 3.11

-7 2793 47 186.3 3 26.4 57 3.11

-6 2636 48 178.4 4 25.61 58 2.9

-5 2489 49 170.9 5 24.41 59 2.81

-4 2351 50 163.7 6 23.27 60 2.72

-3 2221 51 155.9 7 22.2 61 2.63

-2 2099 52 150.4 8 21.18 62 2.54

-1 1984 53 144.2 9 20.21 63 2.49

10 1092 20 12.36 74 1.73 11 1036 21 11.84 75 1.68 12 983.2 22 11.34 76 1.63 13 933.4 23 10.87 77 1.58 14 886.4 24 10.43 78 1.54 15 841.9 25 10 79 1.49 16 800 26 9.59 80 1.45 17 760.8 27 9.21 18 722.8 28 8.84 19 687.3 29 8.48 20 653.8 30 8.15 21 622 31 7.83 22 592 32 7.52 23 553.6 33 7.23

Rnom(Kȍ)

0 1877 54 138.3 10 19.3 64 2.38 1 1775 55 132.7 11 18.43 65 2.3 2 1680 56 127.3 12 17.61 66 2.23 3 1590 57 122.1 13 16.83 67 2.16 4 1506 58 117.2 14 16.09 68 2.09 5 1426 59 112.5 15 15.38 69 2.03 6 1351 60 108 16 14.71 70 1.96 7 1280 61 103.8 17 14.08 71 1.9 8 1214 62 99.68 18 13.48 72 1.85 9 1151 19 12.9 73 1.79

R80=50Kȍ±3% B25/80=4450K±3%

T(ć)

Rnom(Kȍ)

R25=10Kȍ±3% B25/50=3700K±3%

T(ć)

-20ć

Rnom(Kȍ)

90.79 34 6.95

R25=10Kȍ±3% B25/50=3700K±3%

T(ć)

Rnom(Kȍ)

-93-

Page 94

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

R25=23Kȍ±2.5% B25/50=4200K±3%

T(ć)

-20ć

-19ć

-18ć

-17ć

-16ć

-15ć

-14ć

-13ć

-12ć

-11ć

-10ć

-9ć

-8ć

-7ć

-6ć

-5ć

-4ć

-3ć

-2ć

-1ć 0ć 1ć 2ć 3ć 4ć 5ć 6ć 7ć 8ć 9ć

10ć 11ć 12ć 13ć 14ć 15ć 16ć 17ć 18ć 19ć 20ć 21ć 22ć 23ć

Rnom(Kȍ)

281.34

263.56

247.04

231.66

217.35

204.02

191.61

180.04

169.24

159.17

149.77

140.99

132.78

125.11

117.93

111.22

104.93

99.04

93.52

88.35

78.94

74.67

70.65

66.88

63.33

56.86

53.91

51.13

48.51

46.04

43.72

41.52

39.45

35.66

33.92

32.27

30.72

29.25

27.86

26.54

83.5

37.5

25.3

R25=23Kȍ±2.5% B25/50=4200K±3%

T(ć)

24ć 25ć 26ć 27ć 28ć 29ć 30ć 31ć 32ć 33ć 34ć 35ć 36ć 37ć 38ć 39ć 40ć 41ć 42ć 43ć 44ć 45ć 46ć 47ć 48ć 49ć 50ć 51ć 52ć 53ć 54ć

55 56ć 57ć 58ć 59ć 60ć

Rnom(Kȍ)

24.12

21.94

20.94

19.99

19.09

18.23

17.42

16.65

15.92

15.22

14.56

13.93

13.34

12.77

12.23

11.71

11.22

10.76

10.31

9.89

9.49

9.1

8.74

8.39

8.05

7.73

7.43

7.14

6.86

6.6

6.34

6.1

5.87

5.65

5.44

5.24

-94-

Page 95

9. Wiring diagram



AU242FHBIA Wiring diagram:

Compressor

CN101

IPM

CN102

B:Black BL:Blue BR:Brown R:Red W:White

Y:Yellow

OR:Orange

Y/G:Yellow/Green

Electrolytic Capacitor

F/400V

2500

ˉˉ

Reactor

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

OUTDOOR UNIT WIRING DIAGRAM

Oxygen

Spray

Electrolytic Capacitor 100

CN7

CN3

CN2

CN1

F/400V

Crankcase Heater

CN8

B B

Rectifier 25A/600V

Fan Motor

Fan Motor Capacitor

CN4

Control Board



CN30

4-Way Valve

CN6

High-pressure Switch

Rectifier 50A/600V

CN16

Generator

Valve

CN22

CN23

Parts in dashed fram e are optional.

CN9

Y/G

CN10

F3.15A/250V

PTC

NOCOM

 RL1

CN34

Low-pressure Switch

CN11

CN12

CN21

CN13

CN14

CN15

Electronic expansion Valve

Y/G

Discharge Temp. Sensor

Power Supply

1PH,220v-230V~,50Hz

Y/G

Connected To Indoor Communication Wire

Indoor unit Power Supply

1PH,220v-230V~,50Hz

Defrost Temp. Sensor

Ambient Temp. Sensor Suction Temp. Sensor Mid-Condensor Temp.Sensor

AU482FIBIA Wiring diagram:

/'

/'

/'

6:

6:

6:

6:

6:

EEV

Y/G











W

6HQVRU

7HPSHUDWXUH

3LSH

6HQVRU









AC Motor B

To indoor uint



CN2

CN1















Fan Capacitor





Power Supply







,QKDOH

&RPSUHVVRU

Earthing

Current Detecor

Capacitor



 







AC Motor A

6SUD\ 9DOYH

W R



Fan Capacitor

Electrolytic

Capacitor

Electrolytic Capacitor



1.Parts in dashed frame are optional

2.B:Black R:Red W:White Y/G:Yellow/Green



























6HQVRU

9HQW







&RPSUHVVRU

6HQVRU

7HPS





6ZLWFK

'HIURVW

Y/G



+LJK3UHVVXUH

6ZLWFK

  







 







 

 





/RZ3UHVVXUH













































  





 

 





High Voltage Control

 

 



Fuse



4-Way valve







Unloading

Valve

Board









Crankcase Heater







Oxygen Generator









6HQVRU

7HPSHUDWXUH

$PELHQW



Rectifier



Reactor

AC Contactor

Resistance

-95-

Page 96

AU48NFIBJA wiring diagram:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

CF2

Fan capacitor

FAN2

12345

CN1

SCLD-P-B-4PDT-C

201916 151211 8 7 4 1

IPM

UVW

CRANKCASE HEART

CN201

CN103

(+)

RECTIFIER

(

)()()

Noise Filter

RSTN

Power Supply

Y/G

W-P

RY202

RY201

C101 C102 C103

C104 C105 C106

)

(

CN202

CN203

1 2 3 4 5

1 2 3 4 5 6 7 8

9 10 11 12 13

R101

R114

Lm2Lm1

Y/G

12345 12 2121

CN303 2 3

CN301 4 5

1 2

CN302

3 4 5

Control Board

1 2 3 4 5 6

CN305

7 8

9 10 11 12

CN306

1234567 89

CN105

PTC

2 3

Anti-surge relay

CN107

CN104

CN308 CN307

987654321

RY101

FM4FM3

CN309

123412

1 2 3 4

Communication

JP301

TSINK

CN311

CN312

CN313

CN314

CN315

CN316

0H(L)

CN317

0P(H)

CN318

1 2

CN310

3 4 5

CN304

Remarks:

1. CN302 ǃ CN303 areports for controllers,and will be used in maintenance.

2. Parts in dashed frame are optional.

Symbols meaning

part name

symbol

compressor

fan motor

OX-P

oxygen bar function

4-WAY

4-way valve

solenoid valve

HEAT

crankcase heater

W-P

water pump

TSINK

radiator temp. sensor

mid-condenser temp. sensor

Color symbol:

symbol symbol

black

blue

red

C1 C2

W Y

G Y/G

white yellow green yellow/green

0010577105

symbol

part name

defrosing temp. sensor

ambient temp. sensor

suction temp. sensor

Ts Td

discharging temp. sensor Low pressure switch

0H 0P

High pressure switch

EEV

Electronic expansion valve

current transducer

4-WAY

OX-P

321 321 123321321213

RY209

5 4

5 4 3 2 1

3 2

CN212

RY208

CN204

FAN1

CF1

CN211

CN3

2 3

CN2

4 5

SV2 SV1

CN210 CN210 CN208 CN207 CN206 CN205

RY206 RY205 RY204 RY203

Power Supply Board

RY207

T3.15A/250VAC

123

UVW

AB**2FCBIA wiring diagram:

gas pipe temp. sensor

liquid pipe temp. sensor

Room temp. sensor

LED3

LED4

TIMCOMP

B:Black BL:Blue BR:Brown R:Red

W:White Y/G:Yellow/Green

float switch

146

97823

OPER

Remote receiver

Remote control type

Wired controller

Wired control type

electronic expansion valve

Builtin EEV type

emergency

LED1LED2

switch

POW

sw01

BEEP1

outdoor communication

CN5

243

CN9

CN11

CN

10 9 8 7

CN13

5 4

3 2

CN14

3214

indoor power

1PH.220-230V~.50Hz

sw03

423156

CN6

CN1

Indoor unit wiring diagram

fan capacitor

serial CN16

swing motor

32145

CN3

sw02

Indoor control board

sw01

unit code setti ng

Outside EEV type

CN7

pump motor

CN4

negative ion generator or high

voltage accumulator

<*

electronic expansion valve box power supply and communication

Must connect electronic expansion valve box

NOTE

power and communication from corresponding indoor,wiring sequence must correspond with

the label respectively,other wise, will cause PCB of indoor and electronic expansion valve box not work and damaged.

T3.15A/250VAC

FUSE

CN19

CN8

123

CN20

fan motor

CN25

CN18

CN22

0010577029

About the PCB setting

In the diagram,gas pipe temp. sensor,liquid pipe temp. sensor,room temp.sensor ,indoor fan motor,float switch, pump motor,swing motor are

controller,remote receiver,electronic

Wired

valve

are parts matched with

negative ion generator or

are optional parts for health

Wired controller and remote receiver

one of type at will.

The setting of SW01,SW02 and SW03 :

1.The former three bits of SW01 are used to set unit number,which are operated by the installer on field .

2.The fourth bit of SW01 is used to choose different indoor fan speed in heating mode."ON"means that fan speed can be set as middle and low level,"OFF"means that fan speed can be set as high,middle and low level.

3.The first bit of SW02 and SW03 is used to choose wired control type or remote control type.

"ON"means that the unit with wired controller(other parts are as the same as remote control unit). And "OFF"is remote controller.

The unit with wired controller

on wired controller with remote controller such

4.The second bit of SW02 is used to choose built-in or

outside electronic expansion valve setting .

"ON"means built-in type :

expansion valve

"OFF"means outside type: electronic expansion valve communication,and the expansion valve box(MP3A) control indoor

Attentions:

The CN9 is

is must be set "ON",And CN19,CN22 is not available.

CN16 is a serial communication port for service.

The dip switch setting when out of factory

necessary parts;

the model(combined usage); high voltage accumulator

and comfort

CN6 is connected with

and indoor unit control

CN25 is connected with

So the second bit

not available .

expansion

combined

only can be chosen

can make remote operation

as YR-H71 .

electronic

refrigerant flow itself.

electronic

refrigerant flow.

of SW03

usage).

-96-

Page 97

AE**2FCBKA wiring diagram:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

electronic

gas pipe temp. sensor

liquid pipe temp. sensor

ambient temp. sensor

receive display PCB choice of remote controller type

choice of wired controller type

wired controller

B:Black BL:Blue BR:Brown R:Red W:White Y/G:Yellow/Green

expansion valve

float switch

indoor temp

sensor

CN2

LED1LED2LED3

SW1

3 2

CN1

146

BACD

outdoor communication

CN5

CN11

CN24

10 1 9 8 7

CN13

5 4

4 3

CN14

423156

CN6

serial

CN16

CN15

RL7

CN1 CN10

fan capacitor

Y/G

indoor power

1PH.220-230V~.50Hz

for built-in EEV type

Indoor control board

RL6 RL5

CN4

43213

indoor fan motor

negative ion generator or high voltage accumulator

electronic expansion valve box power supply and communication

Must connect electronic ex pansion valve box

NOTE˖

power and communication from c orresponding indoor,wiring sequence mus t correspond with the label respectively,ot her wise, will cause PCB of indoor and electroni c expansion valve box not work and damaged.

AS**2FCBHA wiring diagram:

Indoor unit wiring diagram

TRANSFORMER

Display Bar

CN11

XB1

XB2

CN10

CN1

Control Board

SW01

OFF

water

CN9

sensor

unit code setting

RL4

connector

earthing

CN6

temperate

RL3 RL2

CN7 CN12

23132

CN2

CN13

CN12

CN14

CN7

CN8

CN5

CN17

CN23

SW2

swing motorpump motor

BL BL

CN8

FUSE T3.15A/250VAC

RL1

CN19

CN20

resumable heat protector 80 10A/250VACćˈ

FUSE T15A/250VAC

one-off heat protector 105ćˈ10A/250VAC

only applicable for unit with auxiliary electric heater

FAN MOTOR

EMERGENCY SWITCH

LIQUID PIPE TEMP.

SENSOR

ROOM TEMP. SENSOR

GAS PIPE TEMP. SENSOR

STEPPING MOTOR

transformer

CN25

CN18

CN22

CN3

RRB

auxiliary heater

ELECTROMAGNETIC

VALVE BOX

0010573324

NOTE:The dashed " PCB inner wiring.

About control board outer connector:

In the diagram,gas pipe temp. sensor,liquid pipe temp. sensor,indoor fan motor,transformer are necessary parts display,electronic expansion val ve,float switch,pump motor,swing motor are parts matched with the model(combin ed usage˅˗ electric heater,negative ion generator,high voltage accumulator are optional parts for health and comfort controller and receive display only can choose one at will. The unit with remote controller is matched with receive display:

1.Ceiling concealed type:CN11 must be short

2.Duct type˖connected with float switch and

3.Cassette type:connected with float switch

4.Cabinet type:CN11 must be short connected

The unit with wired controller(equipped with wired controllerˈ controller with remote controller such as YR-H39)

Short connect CN15

wireˈ

Setting method with electronic expansion valve outside:

CN23 is disconnected,CN25 is connected with electronic

expansion valve communication,and the electronic expansion valve box(MP3 or MP2) control indoor refrigerant flow.

Setting method with built-in electronic expansion valve:

connected with electronic expansion valve indoor unit control refrigerant flow itself.

Attentions: The water temp sensor (CN9) and indoor temp sensor (CN24) are unus eful now. The fourth bit of 4 position dial switch is used to choose the different speed of indoor fan under heating mode. "ON" means that the speed of indo or can be choosed from middle and low."OFF" means that the speed of indoor fan can be choosed from high,middle and low.

CN23

CN15 CN17

CN16

CN11

LED3

LED2

LED1 RL1

ˉˉˉ"in indoor controll board is

˗Wired controller,receive

combination usage arbitrarily).Wired

connected with a jump wire

pump motor

pump motor and swing motor˗

with a jump wireˈ

can make remote operation on wired

other parts are the same as remote control unit

CN23 is short connected with a jump wire, CN6 is

short connector for built-in electronic expansion valve

short connector for wired controller

serial communication port

connector for float switch

indicator˄runningˉred˅

indicator

˄timerˉyellow˅

indicator˄powerˉgreen˅

connected with swing motor

CN17 together with jump

emergency switch(ON/OFF)

SW1

indoor fan motor low-speed relay

RL7

indoor fan motor Mid-speed relay

RL6

RL5

indoor fan motor High-speed relay

health function module relay

RL4

pump motor relay

RL3

swing motor relay

RL2

auxiliary eletric heater relay

Auxiliary

and

0010573625

VIEW A

Y/G

VIEW A

R: RED B: BLACK W: WHITE BL: BLUE

BR: BROWN

Y/G: YELLOW/GREEN

Note:

1.SW01 is the dip switch to set unit number. 2CN6 is a serial port for some device.

Power Supply

1PH,220-230v~,50Hz

-97-

Earthing

Wire

EARTHING

C2C1Y/G RRL

Communication Wire

Page 98

MP3A wiring diagram:

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

electronic expansion valve3

electronic expansion valve2

electronic expansion valve1

5 4

3 2 1

6 5 4

3 2 1

MP3A wiring diagram

FUSE T3.15A/250VAC

CN1

CN2

CN3

CN15

CN14

CN13

Control board

CN4

CN5

CN6

CN7

CN8

CN9

CN6

0010577068

SERIAL

CN10 CN11

CN12

indoor 1

B:Black BR:Brown

W:White Y/G:Yellow/ Green

BWBRBWBRBW

L1 N1C1L2 N2C2L3 N3

Y/G

indoor 3

indoor 2

NOTE: Power supply and communicat ion wire must be connected with the corresponding indo or units.Wiring sequence must be correspondent respectively,L and N must not be conn ected reversely,otherwise, it will cause the unit not work and demaged. On running, "indoor 1" must be electrified alwa ys, or air conditioner does not work normally.When the system is equipped with MP2A,

the installer should use the corresponding two-way el ectronic expansion valve communication wiring and its driver port

-98-

Page 99

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

10. Failure code and troubleshooting

10.1 Outdoor failure code:

AU242FHBIA, AU482FIBIA: check indoor mainboard LED1 or outdoor mainboard LED1.

Failure code Failure description

01 Outdoor defrosting temperature sensor TE circuit failure

02 Ambient temperature sensor TA circuit failure

03 Suction temperature sensor TS circuit failure

04 Discharging temperature sensor TD circuit failure

05 Outdoor mid-condenser temperature sensor failure

06 Over current abnormal

09 IPM protection

10 EEPROM on PCB incorrect

11 Discharging temperature protection action

13 Pressure switch circuit abnormal

14 Pressure switch circuit abnormal

Current

mutual inductor failure

19 Discharging temperature protection action when in low frequency

20 Communication abnormal when chip 857 receives signal from chip 846

21 Compressor over current failure

22 Communication abnormal when chip 846 receives signal from indoor unit

23 Chip 846 EEPROM/chip 857 EEPROM failure

-99-

Page 100

Commercial Air Conditioner Model: AU242FHBIA,

AU482FIBIA, AU48NFIBJA

AU48NFIBJA malfunction code:

LED display on

Malfunction description Code

Normal 0 Normal Yes

Defrosting temperature

sensor abnormal

Ambient temperature sensor

abnormal

Suction temperature sensor

abnormal

Discharging temperature

sensor abnormal

Coil temperature sensor

abnormal

Over current protection 6

Current sensor abnormal 7 C.T.

Overload protection 8

IPM protection 9

Read EEPROM value

wrongly

Discharging temperature

over high abnormal

High pressure switch

abnormal

Voltage over low protection 13

Voltage over high protection 14

Compressor overheat

protection

Recover the parameter set

when out of factory

Clear the malfunction

memory

Need reset 18 P r.E. no Need reset and restart

Radiator temperature sensor

abnormal

1 E.4.

2 E.1.

3 E.3.

4 E.2.

5 E.5.

10 P E.E.

12 O.P.

15 O.H.

16 P I.A.

17 P C.T.

-- --

the regulating

board

O.C.

P O.C. no

O.L. Yes

P O.L. no

E.P. Yes

P E.P. no

O.D. Yes

P O.D. no

L.U.

P L.U.

O.U.

P O.U.

If sent to

indoor unit?

Yes

Yes Resumable

Yes

Yes After trouble shooting, need powered off

Yes

no Need reset and restart

No use

temporarily

Remarks

Resumable

After there are current malfunction for 3

times in 1 hour, the testing board will

display the last abnormal reason P X.X.

Need powered off and restart

and restart

After there are current malfunction for 3

times in 1 hour, the testing board will

display the last abnormal reason P X.X.

Need powered off and restart

Need reset and restart

After there are current malfunction for 3

times in half an hour, the testing board

will display the last abnormal reason P

X.X. Need powered off and restart

Resumable

After there are voltage malfunction for 3

times in 1 hour, the testing board will

display the last abnormal reason P X.X.

Need powered off and restart

Resumable

Need reset and restart

-100-