Haier AB242ACBEA User manual

MANUAL CODE: SYJS-005-03 Rev.0 .

Haier Group

Auto-Restart function

Group control(with a group controller)

Auto-changeover

The same outdoor unit can match with cassette \convertible\

duct type indoor unit

With new environment friendly refrigerant R407C

Weekly timing(with a weekly timer)

Features

Service Manual

Commercial Air Conditioning

24 28 Universal Outdoor Unit air conditioning

AC28NACBEA+AU28NAHBEA

AD28NAMBEA+AU28NAHBEA

AB28NACBEA+AU28NAHBEA

Remotoe control and Wired remote control(Optional)

AB242ACBEA+AU242AHBEA

AC242ACBEA+AU242AHBEA

AD242AMBEA+AU242AHBEA

AD242AHBE A+AU242AHBEA

AP242ACBE A+AU242AHBEA

AU282AHBEA

CONTENTS

1. Description of Products & Features…………………...…….2

2. Specifications…………………………. ………………...……8

3. Safety precaution…………………………..………………….12

4. Net dimensions of indoor and outdoor unit………………...14

5. Installation instructions ……………………. ……………….16

6. Parts and functions …………………………..…… ..……….19

7. Remote controller functions………………………….………22

8. Refrigerant diagram…………………………..……………....24

9. Electrical control functions……………………………………25

10. Diagnostic information(trouble shooting)…………….……29

11. Electrical data.........................................…………….……35

12. Exploded views and parts lists...............……………. …...41

13. Performance curves……………............................... ……57

15. Air velocity distribution …………............................... ……48

CONTENTS

Contents……..............................................…...………...…….1

- 1 -

14. Noise level charts....... …………............................... ……48

1 .Description of Products& Features

Products coding direction

United Outdoor unit:

A U 24 2 A H B E A

Climate type: T1 (see table 1)

Design number E

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

B stands for heat pump type, refrigerant is R407

M stands for cool only type, refrigerant is R22

N stands for cool only type, refrigerant is R407

Appearance character

Product series: common icon-shelled outdoor unit type

Applicable voltage: 2 stands for 220-240V/50Hz

4 stands for 220v/60Hz

N stand for 380V/50Hz

Cooling / Heating capacity,24=24000BTU/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

“U” stands for outdoor unit

Abbreviation of Air conditioner

Indoor units of Cassette type:

AC 242 AC B EA

Climate type: T1 (see table 1)

Design number E

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

B stands for heat pump type, refrigerant is R407

M stands for cool only type, refrigerant is R22

N stands for cool only type, refrigerant is R407

Appearance character

Product series: common icon-shelled outdoor unit type

Applicable voltage: 2 stands for 220-240V/50Hz

4 stands for 220v/60Hz

N stand for 380V/50Hz

Cooling / Heating capacity,24=24000BTU/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

“U” stands for outdoor unit

Abbreviation of Air conditioner

-2-

a)Description of the coding rule of the models

AU28 N A HBEA

Climate type:T1

Design serial number

Air conditioner

Product series:one-to-one

Outdoor unit

Cooling capacity:28=28000BTU/h

Adaptive voltage:380-400V/50Hz

Appearance features

Product type: heat pump R407C

AB28 NA CBEA

Climate type:T1

Design serial number

Air conditioner

Product series:one-tag-one

Product specification:valid digit above kilobi

Adaptive voltage:380-400V/50Hz

Appearance features

Product type: heat pump R407C

Product type:indoor unit

P:Cabinet typeC:Convertible type

B:Cassette type D:Duct type

b). Standard working condition

Operating Mode Indoor Operating Mode Outdoor Operating Mode

Nominal Cooling

Temp. Temp.

Humidity

DB:27 WB:19 DB:35

DB:7 WB:6

WB:24

Humidity

DB:20 WB:15

Nominal Heating

No.

Temp.

Humidity

DB:27 WB:19 DB:35

DB:7 WB:6

WB:24

Humidity

DB:20 WB:15

Nominal Heating

No.

-3-

c)Brief introduction of the series:

Convertible type:

AC242ACBEA AC28NACBEA

(1).Ceiling convertible,flexible installation,convenient

maintenance,saving the users' expenditures

(2)Adopting single-phase & three-phase power supply,applicable for

household and commercial usage

(3).Dual air outlet design,floor air blowing,accelerating the indoor air

circulation, quick temperature adjustment

(4).Long-distance air blowing,large power,large cooling/heating

ratio

(5).Intelligent remote control,convenient and flexible control

(6).Super-slim indoor unit design,luxury and nice-looking,saving

space,harmonious and unitive with the indoor environment

(7).Adopting screw-fastening for the air inlet grill,firmly

fixed;adopting slipway insert-lock fastening method for the

filter screen,convenient cleaning or replacing the filter screen

without opening the air inlet grill.

(8).Group control,units up to 128 sets can be controlled .

Duct type :

AD242AMBHA AD242AHBEA AD28NAMBEA

Totally concealed machine body

All the machine body is to be installed inside the ceiling, having no effect on the

beauty of the room and without taking any room space.

Air intake via the rear air intake duct

This new design has changed the former unique pattern of air intake, and a larger

distance between air intake and air return cycles as well as better air quality can be

achieved.

Flexible and easier installation

The machine body is to be installed in a totally concealed way,its fan system has

a longer distance coverage so as to supply its airflow to several rooms, and the

indoor unit may be installed inside the ceiling of a room or corridor. The

installation is simple and flexible, and there is no need to have specified personnel

for management, thus cutting down the expenses; the machine is lighter and

smaller, and convenient for installation, it takes an extremely small building space,

thus lower the construction cost; the indoor unit is to be concealed inside the

ceiling, and hence the usable space can be saved and the room decoration will

not be affected.

-4-

AB242ACBEA AB28NACBEA

Products characteristic:

Completely invisible machine body:

The whole machine body is completely concealed inside the ceiling. Due to its compact size it neither

breaks the harmonization of indoor decoration nor occupies the indoor spaces. The stylish look of air

conditioner allows it to blend right into ceiling.

Superbly efficient healthy filter:

Superbly efficient antibiotic materials are utilized and can prevent germs from

breeding efficiently .

Flexible and easy installation

Slim design with machine body, completely ceiling concealing and portable shape, all make it greatly

easier to install. Moreover, it occupies least constructional spaces, which help to reduce constructional

cost prices. It also features a specific drainage system with up to 600mm lift , which allows reducing

installation spaces and ensures to drain smoothly. Thanks to its "smudge-free" mobile outlet grill,

the ceiling can be protected from pollution effectively and allow the airflow to fit people's

comfortable need much more.

Compensation function of power failure:

When meeting a power failure during running, no matter how long it will be, once the power is

restored, air conditioner will automatic restart with the previous status.

Safety and reliable control due to various signal controls

1 Inputting with press buttons on the panel

2 Inputting with temperature sensors (indoor ambient temperature sensors, indoor coil pipe

temperature sensors,

3 Piping pressure signals

4 Compressor current signals

5 Testing signals

6 System time-shorten signal

7 Water overflowing signal

8 Communication signals between indoor unit and front plate or between indoor unit and outdoor

unit .

Silent design

The use of radial outward flow turbine fan produces larger cyde airflow volume and acts to

significantly decrease operating noise.

When using remote-controlling mode, it is comfortable and convenient to operate.

Advanced wire-controller and convenient remote-controller

The new wired controller can connect with 16 indoor units without any device such as detectors.

The new remote controller can be used for single unit or muti-free unit, or H-MRV,very convenient.

Cassette type:

In addition, it can be compatible with the old remote controllers.

Low ambient temperature cooling function (optional)

Equipped with high/low pressure protection switch

NEW

The indoor units of AU282AHBEA and AU28NAHBEA are the same.

Climate type

Type of Air Conditioner

T1 T2 T3

Cool only 18 43 035 21 52

Heat pump -7 43 -7 35 -7 52

Electricity heating 43 35 52

d). Brief Introduction for T1\

T2\ T3 working condition

Climate type

Type of Air Conditioner

T1 T2 T3

Cool only 18 43 10 35 21 52

Heat pump -7 43 -7 35 -7 52

Electricity heating 43 35 52

-6-

2 Specifications

Model

ItemAU242AHBEA AC242ACBEAAB242ACBEA AD242AMBEAEAD242AHBEA

Cooling capacity①Btu/h 24000 24000 24000 24000 24000

Heating capacity①Btu/h 27000 27000 27000 27000 27000

Power 1PH 220-230V 50Hz

Cooling power(W) 2700 2700 2700 2700 2700

Cooling EER(Btu/W) 8.89 8.89 8.89 8.89 8.89

Cooling operation current

(A) 12.5 12.5 12.5 12.5 12.5

Power factor(%) 0.95 0.95 0.95 0.95 0.95

Heating power (W) 2700 2700 2700 2700 2700

Heating COP(Btu/W) 10 10 10 10 10

Cooling operation current

(A) 12.5 12.5 12.5 9.5 9.5

Power factor(%) 0.95 0.95 0.95 0.95 0.95

Operation data

Noise level（high-mid-low）

dB(A) 58 48-44-38 39-37-35 35-32-29 42-41-40

External

(L×W×H) 948x340x830 990×655×199 840×840×240 990×650×300 820×830×360

Dimension

mm×mm×mm

Package

(L×W×H) 1050x440x979 1150×750×300 910×910×300 1137×800×320 940×1051×510

Weight

(net/gross)

Kg/Kg 74/89 30/39 28/30 40/57 48/58

Compressor Model ZR34K3E-PFJ-522 \ \ \\

Manufacture

Copeland \ \\\

Starting method PSC \ \\\

Starting

current(A) 75 \ \\\

Protection

devices IOL \ \\\

Crankcase heater power (W) \ \ \\\

Heat exchanger 0.92m20.084 m20.199m20.199m20.199m2

Refrigerant control capillary capillary capillary capillary capillary

Refrigerant Type R407C \ \

Charge(g) 2400 \ \ \

Defrost method Auto Auto Auto Auto Auto

Fan Type×Number Axial fan×1 Axial fan×2 Cross flow fan×2 Cross flow fan×2Cross flow fan×2

Fan motor Motor output (W) 130 45 40 100 130

Air-flow （high-mid-low）m3/h 4000 900/840/7901300/1100/870 1470/1300/1100 900/1250/1500

Anti-vibration and sound

insulation devices XPE XPE XPE XPE XPE

Control method

（remote/wire-controlled ）\ Remote

controlled

Remote

controlled

Wired

controlled

Wired

controlled

Safety devices Fuse Fuse Fuse Fuse Fuse

Liquid pipe:(mm) Φ9.52 Φ9.52 Φ9.52 Φ9.52 Φ9.52

Dimension

refrigerant

pipe

Gas pipe:(mm)

Φ15.88 Φ15.88 Φ15.88 Φ15.88 Φ15.88

Connection method

Bugle joint Bugle joint Bugle joint Bugle joint Bugle joint

Drainage pipe(material ,

I.D./O.D.)Mm \ PVC 26/32 PVC 25/32 PVC 25/32 PVC 26/32

Appearance colour white white white white white

Accessories To see manual To see manual To see manual To see manual To see manual

-7-

Function cooling heating

Capacity BTU/h 24000 28000

Capacity kW 7.1 7.9

W2.7 2.7

W3.2 3.2

EER or COP W/W 2.6 2.9

Dehumidifying capacity 10‐³×m³/h

Power cable

Power source N，V，Hz

A / A 13.5/16 14.5/19.5

Start Current A

Fuse A

Unit model (color)

Type × Number

Speed(H-M-L) r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Type / Diameter mm

Total Area m²

Temp. scope ℃

External （L×W×H）mm×mm×mm

Package （L×W×H）mm×mm×mm

Drainage pipe (material , I.D./O.D.) mm

Control type (Remote /wired)

dB(A)

kg / kg

Type / Charge g

Recharge quantity g/m

Liquid mm

Gas mm

Connecting Method

Refrigerant

Fan

Heat exchanger

1.8

48/46/44

remote type

MAX.Piping length 30

PIPING

R407C/2400

Pipe

9.52

15.88

flared

Between I.D &O.

MAX.Drop 20

TP2M/9.52

Weight (Net / Shipping) 45/57

PVC 26/32

1821×532×300

item Model AP242ACBEA

3.0

3*3.0

Total power input

Max. power input

Running /Max.Running

current

centrifugal*1

Dimension

0.338

1000/900/800

2-7

1920×625×377

0.04

Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20℃DB

Outdoor temperature(cooling): 35℃DB/24℃WB, outdoor temperature(heating): 7℃DB/6℃WB

560±30/ 490±40/380±50

1, 220~230, 50

Indoor unit

AP242ACBEA

Noise level (H-M-L)

Electricity Heater

Function

Coo

lin

eat

Capacity BTU/h 28000 32000

W3200 3300

W4500 5500

EER or COP BTU/W 8.75 9.7

Dehumidifying capacity 10‐³×m³/h

Power cable

Power source N，V，H

A / A

Start Current A

Unit model (color)

Fan Type × Number

Speed(H-M-L) r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Heat exchanger Type / Diameter mm

Total Area m²

Temp. scope ℃

External （L×W×H）mm×mm×mm

Package （L×W×H）mm×mm×mm

Drainage pipe (material , I.D./O.D.) mm

Control type (Remote /wired)

Fresh air hole dimension mm

dB(A)

kg / kg

External （L×W×H）mm×mm×mm

Package （L×W×H）mm×mm×mm

kg / kg

Unit model (color)

Compressor Model / Manufacture

Type

Fan Type × Number

Speed r/min

Fan motor output power kW

Air-flow(H-M-L) m³/h

Heat exchanger Type / Diameter mm

Total area m²

Temp. scope ℃

External （L×W×H）mm×mm×mm

Package （L×W×H）mm×mm×mm

Drainage pipe (material , I.D./O.D.) mm

Refrigerant control method mm/mm

Volume of Accumulator L

Noise level dB(A)

material of reduce noise

crankcase heater power W

kg / kg

Refrigerant Type / Charge g

Recharge quantity g/m

Liquid mm

Gas mm

Connecting Method

item Model

U28NAHBEA

Total power input

Max. power input

3N 380V-400V 50H

Running /Max.Running

current

Cooling 5.5/8.0 Heating 5.8/9.5

Dimension

Electricit

Heater

Noise level (H-M-L)

Weight (Net / Shipping)

Panel

Dimension

Weight (Net / Shipping)

Indoor unitOutdoor unit

U28NAHBEA

(

WHIT

E£©

ZR40K3E-TFD-522 Co

ela

Scroll

xial-flow×1

1180+3

130

4000

TP2M/9.52

0.92

43-60

Dimension 948x340x830

1050x440x979

main ca

illar

2.4x22

；auxiliar

illar

Defrosting

uto

58/--/50

Type of Four way valve

MAX.Drop 20

Weight (Net / Shipping) 74/89

MAX

PIPING

R407C 2400

Pipe

9.52

15.88

flared

Between I.D &O.D

-8-

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