Haier AU122AEERA Manual de usuario

Commercial Air Conditioning

SERVICE MANUAL

Models

 Features

 High energy efficiency

 Infrared control type or wired control type

 Low ambient cooling kit (optional) and low ambient heating kit (optional)

 New friendly refrigerant R410a, environment protection

 Advanced technology, DC inverter control function

 Weekly timer (standard)

 Group control function

 Auto restart function

 Room card function

AB122ACERA

AC122ACERA

AD122ALERA

AU122AEERA

 Can be connected with the universal outdoor unit AU122AEERA

Manual code: SYJS-020-07REV.0 Edition: 2007-05-15

CONTENTS

Contents………………………………………………………...2

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

2. Specification…………………………………………………7

Commercial Air Conditioner Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

3. Safety precaution…………………………………………..10

4. Net dimension………………………………………………12

5. Installation instructions………..…………………………...14

6. Parts and functions…………………………………………30

7. Controller functions…………………………………………32

8. Refrigerant circuit…………………………………………...33

9. Electrical control functions…………………………………34

10. Electrical data………………………………………………49

11. Troubleshooting …………….....………………………….57

12. Noise level.....................................................................61

Commercial Air Conditioner

1.1. Products code explanation

Climate type: T1 (see table 1)

Design number (R stands for design sequence, DC inverter

frequency type)

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

B stands for heat pump type, refrigerant is R407C

E stands for heat pump type, refrigerant is R410a

Q stands for cool only type, refrigerant is R410A

Outlook appearance

Product series: A stands for 1 to 1

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

4 stands for 220V/60Hz，N stand for 380~400VAC/50Hz

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

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

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

ceiling concealed type, “U” stands for outdoor unit

Air Conditioner

1.2 Brief Introduction for T1、T2、T3 working condition

1.3 Operating Range of Air Conditioners

Temp. Mode Rated Maximum Minimum

DB ℃27 32 15

Indoor

WB ℃19 23 14

DB ℃35 43 -5

Cooling

Outdoor

WB ℃24 26 6

DB ℃20 27 10

Indoor

WB ℃14.5 --- --

DB ℃7 23 -10

Heating

Outdoor

WB ℃6 18 ---

Climate type

Type of Air

Conditioner T1 T2 T3

Cooling Only 18 ℃~43℃10℃~35℃21℃~52℃

Heat pump -7℃~43℃-7℃~35℃-7℃~52℃

Electricity Heating ~43℃~35℃~52℃

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

1.DESCRIPTION OF PRODUCTS & FEATURES

AC 12 2 A C E R A

Cooling / Heating capacity,12=12000BTU/h

Commercial Air Conditioner

1.4 Product features

Adopt the much friendlier refrigerant R410a

The air conditioner system adopts the greatly friendly refrigerant R410a, which is protective for the

ozone layer and is good to avoid the earth getting warmer. Benefit for the environment.

Adopt the advanced DC inverter technology

The system adopts the advanced DC inverter technology, which can consume less power energy to

realize the equal efficiency, saving money for you.

Smart newly designed infrared remote controller

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.

Low temperature cooling realized, super low temperature heating

realized.

Low ambient cooling kit (optional)

Group control function (with a group controller YR-E12)

Central control function, if connected with a central controller

YCZ-A001

Weekly timing function, if connected with a weekly timer YCS-A001

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

The cassette and convertible unit can be controlled by the infrared remote controller YR-H71, the remote

controller can be fixed with a remote controller holder.

Long-life& high efficiency air purify filter

Commercial Air Conditioner

1.5 New friendly refrigerant R410A introduction:

■R410A

The working pressure of R410A is approximately 1.6 times higher than R22. Because the oil in the

refrigerant is different, please do not mix them.

Refrigerant R22 (single) R410A (mixed) R407C (mixed)

Oil Mineral oil (SONTEX 200LT) Synthetic oil (POE oil) Synthetic oil (POE oil)

Pressure ratio 1 Approx. 1.6 Approx. 1.1

■Operation flow

1. Calculate the refrigerant additional charging

amount, and charge a suitable amount.

1. Air purging by refrigerant is prohibited seriously

2. Use a special vacuum pump with reverse check

mechanism

1. Charge the nitrogen to the set pressure

2. 24 hours later,check if the pressure in the pipe

has reduced

1. Do not connect the power supply

1. Use piping material of the specified thickness

2. Do not use dirty pipe

3. Always flow nitrogen during welding work

hand over

trial running and adjustment

maintenance panel installation

gas leakage check

additional refrigerant charging

evacuation and drying

leakage test

refrigerant piping connection

outdoor unit installation

outdoor unit foundation work

electric wiring work

remote controller installation

insulation work

duct work

drain piping work

refrigerant piping work

indoor unit installation

operation chart preparation

1. Always inspect the used refrigerant

2. Always use the specified refrigerant

refrigerant inspection

prepare work schedule

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

Commercial Air Conditioner

■Piping material

1. Use the correct refrigerant piping and materials for R410A

2. For the pipe wall thickness, see the table below:

Pipe diameter Φ6.35 Φ9.52 Φ12.7 Φ15.88 Φ19.1

Pipe wall thickness 0.8 0.8 0.8 1.0 1.2

Note: Always observe and comply with the local regulations when installing the refrigerant piping.

■Tools

R410A work requires a number of special tools (* symbol). Since the tools used in R22 work

cannot be used for R410A, provide the tools separately.

Tool name Process and application

Pipe cutter Piping cutting

*Flaring tool Pipe flaring work

*Torque wrench Flare nut connection

Expander Expansion at pipe connection

Pipe bender Pipe bending work

Refrigerant piping work

Nitrogen gas Pipe oxidation prevention

Welder Pipe brazing

Air tightness test

*Gauge manifold

*Charging hose

Vacuum evacuation and refrigerant

charging operation check

Air tightness test

Refrigerant additional

charging

*Vacuum pump (with

adapter)

Vacuum drying

Electronic scale

Gas leakage detector Gas leakage test

Refrigerant additional

charging

■Work precautions

Refrigerant check: Before work, check the used refrigerant and prepare materials matched to the

refrigerant.

Refrigerant piping: Observe the basics of refrigerant piping to avoid the unnecessary problems. In

addition, when performing the welding work, seal in the nitrogen gas to the pipes, and prevent it

from the oxidation.

Leak pressure detection: Perform seal detection and make sure there is no refrigerant leakage.

Vacuum drying: If the vacuum pump has not the reverse flow check mechanism, use the pump

together with a reverse flow check adapter.

Additional refrigerant: Charge a suitable amount of refrigerant with a special R410A gauge

manifold and charging hose.

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

Commercial Air Conditioner

2. SPECIFICATION

Function coolin

heatin

Capacity kW 3.52(0.9--4.4) 4.4(1.0---4.8)

Sensible heat ratio 0.71

W 1250(280---1650) 1210(280--1650)

W 1650 1650

EER or COP W/W 2.81（C）3.64（A）

Dehumidifying capacity 10‐³×m³/h

Power cable

Power source N, V, Hz

A / A 6.0(1.4--8.0)A/8A 6.0(1.4--8.0)A/8A

Start Current A 3 3

Circuit breaker A 13 13

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)

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

Function cooling heating

Capacity kW 4.1(0.9--4.6) 4.4(1.0---5.1)

Sensible heat ratio 0.71

W 1270(280---1650) 1210(280--1650)

W 1650 1650

EER or COP W/W 3.23（A）3.64（A）

Dehumidifying capacity 10‐³×m³/h

Power cable

Power source N, V, Hz

A / A 6.0(1.4--8.0)A/8A 6.0(1.4--8.0)A/8A

Start Current A 3 3

Circuit breaker A 13 13

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

item Mod

AB122ACERA

Total power input

Max. power input

ENERGY CLASS

1.5

3×2.5

1, 220--230, 50

1.6

Running

Indoor unit

AB122ACERA(BLACK)

Fan

Centrifugal fan*1

795/690/550±50

0.065

700/620/520

Heat exchanger

inner grooved pipe/φ7

0.272

2-7

Dimension 570×570×260mm

718×680×380mm

Noise level (H-M-L) 45/40/32

PVC 26/32

Remote

Weight (Net / Shipping) 18.5/23

Panel

Dimension 700×700×60mm

740×750×115mm

Weight (Net / Shipping) 3.5/4.5

Item Model AC122ACERA

Total power input

Max. power input

1.6

3×2.5

1, 220--230, 50

Running

Indoor unit

AC122ACERA(WHITE)

Fan

Centrifugal fan*2

1200/1080/880

0.09

750/650/550

Heat exchanger

inner grooved pipe/φ7

0.20

2-7

Dimension 1090×655×199

1150×750×300

PVC 18/20

Remote

Noise level (H-M-L) 46/44/42

Weight (Net / Shipping) 28.3/34.3

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

Commercial Air Conditioner

Function cooling heating

Capacity kW 3.8(0.9--4.4) 4.1(1.0---4.8)

Sensible heat ratio 0.71

W 1260(280--1650) 1260(280--1650)

W 1650 1650

EER or COP W/W 3.02（B）3.25（C）

Dehumidifying capacity 10‐³×m³/h

Power cable

Power source N, V, Hz

A / A 6.0(1.4--8.0)A/8A 6.0(1.4--8.0)A/8A

Start Current A 3 3

Circuit breaker A 13 13

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

Power cable

Power source N, V, Hz

Start Current A

Unit model (color)

Model / Manufacture

Type

Type × Number

Speed 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

Refrigerant control method mm/mm

Noise level dB(A)

material of reduce noise

crankcase heater power W

kg / kg

Type / Charge g

Recharge quantity g/m

Liquid mm

Gas mm

Connecting Method

Item Model AD122ALERA

Total power input

Max. power input

1.6

3×2.5

1, 220--230, 50

Running

Indoor unit

AD122ALERA(GREY)

Fan

Centrifugal fan*1

1000/900/800±50

0.05

550/450/400

Heat exchanger

inner grooved pipe/φ7

0.11

2-7

Dimension 610×483×220

695×536×265

20/18

wired

Noise level (H-M-L) 35/32/30

Weight (Net / Shipping) 14/16

Item Mod

AU122AEERA

3×2.5

1, 220-230, 50

Outdoor unit

AU122AEERA（WHITE）

Compressor C-6RZ092H1A

twin rotary

Fan

axial*1

840r/min±50

0.06

2500/-/-

Heat exchanger

TP2M/Φ9.52

0.374

43-60

Dimension 775x640x245

901x341x712

Capillary tube: main φ3×φ1.8×920，assistant φ3×φ1.8×780

Defrosting auto

Type of Four way valve SHF-4-10A

XPE

Weight(Net / Shipping) 39/43

PIPING

Refrigerant R410A 1300

Pipe 6.35

12.7

flared

Between I.D &O. MAX.Drop 10

MAX.Piping length 20

Norminal condition: indoor temperature (cooling): 27℃DB/19℃WB, indoor temperature (heating): 20 ℃DB/14.5℃WB

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

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.

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

Commercial Air Conditioner

mounting-on-ceiling unit:

Note: ⊙is the real

time analyser

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

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:

duct unit without auxiliary duct: duct unit with auxiliary duct:

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.

on s

e un

e p

ace

oor or

e moun

zon

direction.

Testing method:

built-in-ceiling unit:

1.4m

duct

auxiliary duct

1.4m

auxiliary duct

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

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! Incorrect operations may result in injuries or machine damages; in some cases may

cause serious consequences.

Incorrect operations may result in severe consequences of death or serious injuries.

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.

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.

Don't dismantle the outlet of the

outdoor unit.

The exposed fan is very dangerous

which may harm human beings.

switch

off

In such case, to continue using the

conditioner will damage the conditioner,

and may cause electrical shock or fire

hazard.

Incorrect maintenance and repairment

may cause water leak, electrical shock

and fire hazard.

When the unit needs maintenance and

repairment, please call dealer to handle it.

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.

Commercial Air Conditioner

Model: AU122AEERA AB122ACERA

AC122ACERA AD122ALERA

1000

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