HAIER - HSU-09 12HC Service Man

Haier air conditioner Edition: 1.0-070801

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DomesticAir conditioner

CAUTION READ THIS MANUAL

CAREFULLY TO

DIAGNOSE TROUBLE

CORRECTLY BEFORE

OFFERING SERVICE.

THIS MANUAL IS USED

BY QUALIFIED

APPLIANCE

TECHNICIANS ONLY.

HAIER DOES NOT

ASSUME ANY

RESPONSIBILITY FOR

PROPERTY DAMAGE

OR PERSONAL INJURY

FOR IMPROPER

SERVICE

PROCEDURES DONE

BY ONE UNQUALIFIED

PERSON.

HSU-09HC03/R2(DB)HSU-12HC03/R2(DB)HSU-18HC03/R2(DB)HSU-22HC03/R2(DB)


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CONTENTS

1. GENERAL INFORMATION...............................................................3

2. SPECIFICATION...............................................................................5

3. ELECTRICAL CONTROL..................................................................8

4. THERMISTER RESISTANCE CHART.............................................26

5. TROUBLE SHOOTING....................................................................35

6. PERFORMANCE CURVES DIAGRAM...........................................486.1 High drop and long pipe capacity modification curves……………………….........486.2.1 Cooling capacity-temperature curves………………………………….................496.2.2 Heating capacity-temperature curves……………………………………….........536.3 Air outlet temp.-ambient temperature curves………………………………….........576.4.1 Cooling discharge pressure curves...................................................................616.4.2 Cooling suction pressure curves.......................................................................656.4.3 Heating discharge pressure curves...................................................................696.4.4 Heating suction pressure curves.......................................................................736.5 Sensible cooling value-temperature curves.........................................................776.6 Power consumption-temperature curves.............................................................816.7 Noise curves........................................................................................................856.8Compressor performance curves……………………………………………….........87

7. WIRING DIAGRAM..........................................................................89

8. SCHEMATIC DIAGRAM OF PCB....................................................99

9. INSTALLATION................................................................................104


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1. General information This Service Manual describes the operation, disassembly, troubleshooting, and repair of Haier Room Air Conditioners, etc. It is intended for use by authorized services that troubleshoot and repair these units. It is assumed that users of this manual are familiar with the use of tools and equipment used to troubleshoot and repair electrical, mechanical, and refrigeration systems; and understand the terminology used to describe and discuss them. Haier urges you read and follow all safety precautions and warnings contained in this manual. Failure to comply with safety information may result in severe personal injury or death.

Related Publications

This is a base service manual, covering a range of similar models. It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering specific model being serviced.

NOTE: General Precautions and Warnings

WARNING

To avoid risk of personal injury or death due to electrical shock, disconnect electrical power to unit before attempting to service the unit.

WARNING

To avoid risk of personal injury or death due to electrical shock, DO NOT, under any circumstances, alter the grounding plug .Air conditioner must be grounded at all times. Do not remove warning tag from power cord. If a two-prong (non-grounding) wall receptacle is encountered, contact a qualified electrician and have the receptacle replaced with a properly grounder wall receptacle in accordance with the National Electrical Code.

WARNING

To avoid risk of heat exposure, which may cause death or severe illness, air conditioner must be monitored when malfunctions or shuts down.

WARNING

To avoid risk of personal injury or death due to electrical shock, grounding wires and wires colored like grounding wires are NOT to be used as current carrying conductors. The standard accepted color coding for ground wires is green or green with a yellow stripe. Electrical components such as the compressor and fan motor are grounded through an individual wire attached to the electrical component and to another part of the air conditioner. Grounding wires should not to be removed from individual components while servicing, unless the component is to be removed and replaced. It is extremely important to replace all removed grounding wires before completing service.


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HSU-09HC03/R2(DB) HSU-12HC03/R2(DB) HSU-18HC03/R2(DB)

HSU-22HC03/R2(DB)

HSU-09HC03/R2(DB) HSU-12HC03/R2(DB) HSU-18HC03/R2(DB) HSU-22HC03/R2(DB)

Product Features Photo catalyst Healthy negative ion Left &right airflow Bacteria-killing medium Intelligent airflow Entire auto mode


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2. Specification Item Unit HSU-09HC03/R2(DB) HSU-12HC03/R2(DB)

Power PH, V, Hz 1 230 50 1 230 50Climate Type T1 T1

Cooling Capacity (W) 2600W 3500W Rated Power (W) 680W 1000W Rated Current (A) 3.0A 4.9A Max Power (W) 1150W 1550W Max Current (A) 4.2A 7.0A

Cooling

EER (W/W) 3.82 3.50 Heating Capacity(W) 3400W 4200W Rated Power (W) 930W 1250W Rated Current (A) 4.2A 5.6A Max Power (W) 1350W 1520W Max Current (A) 4.5A 6.9A

Heating

COP (W/W) 3.66 3.36 Starting Current (A) 4.0 Operating temp. range (A) 16~43 16~43Class of electric Shock Protection I I Class of Water Proof IP24 IP24 Remote Controller Model YR-H79 YR-H79 Moisture Removal (10-3m3/h) 1.2x10-3 1.5x10-3 Max. pressure at warm side (Mpa) 4.15 4.15

Length (mm) 580±5 580±5 Drain Hose

Diameter (mm) 25.5±2 25.5±2H (rpm) 1150 1250 M (rpm) 1050 1150 Indoor fan Velocity L (rpm) 950 1000

Outdoor fan Velocity H (rpm) 800 800

Air Volume (High) Indoor(m3)

490 600

Manufacture TOSHIBA TOSHIBA Type DA89X1C-20FZ DA108X1C-20FZ3

Compressor Compressor Oil Charge (ml)

370cc 480cc

Type R410A R410A Net Charge (g) 960 1140

Refrigerant Charge if over standard pipe length

20g/m 20g/m

Liquid pipe Diameter (mm)

6.35 6.35 Refrigerant Pipe

Gas pipe Diameter (mm)

9.52 9.52


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Standard length (m) 4m 4m Max length (m) 15m 15m Indoor (H/M/L) (dBA) 44/41/38 45/42/39

Noise Level Outdoor (dBA) 54 52

Net (kg) 8.8 10.6 Indoor

Gross (kg) 10.6 12.6 Net (kg) 34 37.5 Weight

Outdoor Gross (kg)

37 40.5

Net (mm) 795*265*182 938*265*182 Indoor Package

(mm)863*330*275 1013*330*275

Net (mm) 783*543*255 783*643*255 Dimension

Outdoor Package(mm)

930*614*340 930*714*340


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Item Unit HSU-18HC03/R2(DB) HSU-22HC03/R2(DB)

Power PH, V, Hz 1 230 50 1 230 50Climate Type T1 T1

Cooling Capacity (W) 5000W 6000W Rated Power (W) 1700W 2040W Rated Current (A) 7.5A 9.2A Max Power (W) 2000W 2500W Max Current (A) 9.5A 11.5A

Cooling

EER (W/W) 3.94 2.94 Heating Capacity(W) 5600W 6600W Rated Power (W) 1830W 2160W Rated Current (A) 8.0A 9.7A Max Power (W) 2200W 2750W Max Current (A) 9.5A 12.5A

Heating

COP (W/W) 3.06 3.06 Starting Current (A) 7.5 Operating temp. range (A) 16~43 16~43Class of electric Shock Protection I I Class of Water Proof IP24 IP24 Remote Controller Model YR-H79 YR-H79 Moisture Removal (10-3m3/h) 2.0x10-3 2.5x10-3 Max. pressure at warm side (Mpa) 4.15 4.15

Length (mm) 580±5 580±5 Drain Hose

Diameter (mm) 25.5±2 25.5±2H (rpm) 1350 1350 M (rpm) 1150 1150 Indoor fan Velocity L (rpm) 1000 950

Outdoor fan Velocity H (rpm) 830 830

Air Volume (High) Indoor(m3)

670 700

Manufacture PANASONIC PANASONIC Type 5CS130XCC03 5CS160XAA23

Compressor Compressor Oil Charge (ml)

480cc 600cc

Type R410A R410A Net Charge (g) 900 1900

Refrigerant Charge if over standard pipe length

20g/m 20g/m

Liquid pipe Diameter (mm)

6.35 6.35

Gas pipe Diameter (mm)

12.7 12.7

Refrigerant Pipe


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Standard length (m) 4m 4m Max length (m) 15m 15m Indoor (H/M/L) (dBA) 46/43/41 48/45/42

Noise Level Outdoor (dBA) 57 58

Net (kg) 17 17 Indoor

Gross (kg) 20 20 Net (kg) 43 54.5 Weight

Outdoor Gross (kg)

48 58.5

Net (mm) 938*265*182 1155*308*224 Indoor Package

(mm)1013*333*275 1225*310*371

Net (mm) 820*310*682 865*335*732 Dimension

Outdoor Package(mm)

949×406×745 995*420*815

3. Electrical control

. Application Range This specification use for HSU-09/12/18/22HC03/R2 DB frequency conversion air condition are manufactured by Haier air condition parent company. "Setting value" (express in parameter) in this specification means is a parameter that is stored in EEPROM. Refer to [EEPROM parameter table].

Indoor Unit


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Temperature Adjusting function 2.1This function will decide the outdoor unit’s running speed according to the indoor temperature and the set temperature. Control the indoor blower fan according to the need for temperature adjusting when the wind rate is automatic.Control the indoor blower fan according to the disc-tube temperature when it’s running for heating.

2.1.1 Indoor environment temperature sensor specification Under the conditions of short circuit or open circuit, the indicative light will flash an alarm and the indoor blower fan stops. When it returns to normal conditions, the operation will come back to normal.

Short circuit Temperature: over 126 . Sixteen scales: over F8H. Resistance value: below 0.65 K.

Normal temperature Temperature: 25 . Sixteen scale: 40H Resistance value: 23K.

DisconnectionTemperature: below minus 31 . Sixteen scale: below 08H. Resistance value: below 620K. Voltage: below 0.15 V B index=4200 R (25 ) =23K

2.1.2 The specification of indoor environment pipe temperature sensor

2.1.3 During the time when the heat running starts and indoor blower fan stops or when the warm boot starts and within 30 seconds after the indoor blower fan starts, the resistance value for indoor environment temperature sensor will be neglected.

2.2 The frequency kept when the frequency rises.

When the operation enters into the work mode, in order to insure the full oil-returning, some frequency should be kept for some time.

Indication time Indication frequency

Cooling & moisture removing

Heating Heating & Frost removing

Frequency kept

60 seconds 60 seconds 30 seconds 58 Hz

When the unit is switched on and the forcible running is over, the temperature level control starts.

2.3 Modify the set temperature


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The set temperature can be modified according to the unit’s operation mode, wind volume or whether it is under forceful running condition.

The modification of wind volume is only limited within the switch between weak and medium of wind volume when it is under heating mode.

Modification index table for set temperature

Mode Content of modification Modified variable Modified parameter

Operation mode modification ETBL0 4.67Forceful operation modification ETBL1 6

Weak wind volume modification ETBL2 4.67

Heating

Medium wind volume modification

ETBL3 4.67

Operation mode modification ETBL4 -0.33Cooling & moistureremoving

Forceful operation modification ETBL5 -4

2.4 temperature level control

2.4.1 Deviation Work out the deviation of temperature level as follows:

In heating mode: E = (Remote-control set temperature+ modified value)-room temperature

In cooling & moisture removing mode: E = room temperature -(Remote-control set temperature + modified value)

2.4.2 Compressor OFF E is minus and |E|> T

Heating Cooling

T TCHAHL 0.67 TCHACL 0.33 After T changes TCHAHH 0.67 TCHACH 1 condition for Tchanges

E 3.0 when operation starts

The compressor stops after 120 seconds of continuous detection

When the operation starts, according to the table above, the unit will operate according to the after-the- T-change parameters before the compressor stops for the first time.

From the time the compressor stops to the time it starts again, the operation will follow the T (except the moisture removing mode)

When the operation starts and the operation modes change (except when the idle mode is over) and


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the deviation is bigger than – T, the compressor starts.

When the compressor is working and the remote-controller set temperature falls below – T, the compressor stops.

2.4.3 Compressor operation When the compressor is kept idle for 3 minutes, the deviation E will be higher than - T+0.67 and the compressor will start working. 2.4.4 DASH operation When the operation starts or the operation mode changes (except when the compressor is switched on after being off), the compressor is on and the indicated maximum frequency should be as follows: Cooling deviation to zero Moisture removing deviation to level G Heating deviation to level F There will be no DASH operation under trial operation, emergency operation and silent operation modes.

2.4.5 Temperature adjusting of different levels. (DASH operation conditions under different modes) cooling/ moisture removing /heating /level / cooling / moisture removing /heating /Value E/<120 seconds/ 3-minute idle mode /compressor restart

2.4.6 Frequencies for different levels Within different levels, the indicated frequencies are(the frequency the indoor unit transmits to the outdoor unit) as follows

Under the cooling & moisture-removing mode, level A and B have the same frequency. Under the silent mode, levels A-E have the same frequency with level F


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Indicated frequency Frequency range

Temperature change level

Heating FQHOT [0—7] 36-80Hz A—H Silentheating

FQSHOT [0—2] 36-72Hz F—H

Moistureremoving

FQDRY [0—7] 36-80Hz B—H

Cooling FQCOOL [0—7] 36-80Hz B—H Silentcooling

FQSCOOL [0—2] 36-64Hz F—H

The maximum frequency value refers to the max value listed above. The maximum and minimum values for cooling and heating are the maximum and minimum values for correspondent items.

2.4.7 Controlled frequency for the same level The indicated frequency when a level remains unchanged after the compressor operates with the same frequency for 3 minutes.

The timing will start again when there is a different frequency input. If the temperature level remains unchanged for 3 minutes, the indicated frequency will change again (add FQUPH or FQUPL)

Controlling form for the same level

Levels of temperature change

A B C D E F G H

Heating FQUP (2Hz) FQUP (2Hz) FQUP (2Hz) FQUP (1Hz) FQUP (1Hz)

Cooling&moistureremoving

FQUP (2Hz) FQUP (2Hz) FQUP (2Hz) FQUP (1Hz) FQUP (1Hz)

FQUPH 2Hz FQUPL 1Hz

2.4.8 Select the wind volume when it is set automatic When the wind volume is automatic, it can be switched between strong, medium and weak according to the temperature adjusting levels. Wind volume under the automatic wind volume mode


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Temperature adjusting levels

A B C D E F G H I

Heating Strong Strong Strong Strong Strong Medium Weak Weak SLO

cooling Strong Strong Strong Medium Medium Weak Weak Weak

Moistureremoving

Strong Medium Medium Medium Weak Weak SLO SLO

2.5 Frost removing

Under the intensive-running protection mode, the protection control will be in priority The compressor does not stop Under heating operation mode, the outdoor unit sends a frost-removing signal (I21=10) and the indoor unit will start the frost-removing control until the outdoor unit transmits the signal to end the frost-removing. Then the indoor unit starts the heating operation, indication levels and wind volume control will operate following the heating temperature levels.

2.6 Wind volume limit

When the compressor is working and the max setting for indoor blower fan is medium or weak, the upper limit of indicated frequency is as follows: Frequency control form for wind volume

Limited frequency variables

Limited frequency

Medium wind volume FQLIMMD 80Hz Weak wind volume FQLIMLO 52Hz

Limited frequency for up/down health wind

FUPHEAL 40Hz

When judging the conditions for frequency limit under the heating mode, first judge if the unit has been set to weak wind volume or health wind modes. If it has been set to one or both of the modes, then follow the table below for the limit modification.

Outdoor temperature condition

Indicated frequency

011(Below 20 ) Limited frequency for weak or health wind

010(15-20 ) Limited frequency for weak or health wind +FUPHEA1

10

001(10-15 ) Limited frequency for weak or health wind+ FUPHEA2

15

000(below10 ) Normal frequency


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Indoor blower fan control

When the wind volume is manually medium, the running speed is (strong + weak)/2.

When it is automatically medium, the running speed is (strong automatic+ weak automatic)/2(not counted if it is not up to 10rpm)

3.1heat running

3.1.1 Warm boot When the heat running starts or the frost removing ends and the compressor starts again, in order to avoid cold wind, warm boot wind volume control should be done. Heat exchange temperature

THHOT337.0THHOT235.2 THHOT125.2 4 minutes THHOTR16

Stop weak setting weak stop

To control the indoor blower fan as shown in the table above according to the heat exchange temperature

When the heat exchange temperature rises to the level between THHOT1 and THHOT2 and even after 4 minutes it cannot reach the level between THHOT2 and THHOT3, enter into the next level without referring to the heat exchange temperature.

The blower fan stops when the heat exchange temperature is below 25The blower fan is working slightly weak when the heat exchange temperature is above 25 and below 35

The blower fan is working weak if the he heat exchange temperature remains 35 for less than 4 minutes.

The blower fan works as set if the he heat exchange temperature remains 35 for more than 4 minutesThe blower fan works as set if the he heat exchange temperature remains above 37

slightlyweak

slightlyweak


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3.1.2 When the compressor stops and remains idle for 3 minutes 20 seconds after the compressor stops, the wind volume is weak (switching to SSLO in silent running mode) and then slightly weak. If the compressor stops when the heat running starts, the wind volume is weak

3.1.3 Restart of the compressor The wind volume is set by the remote-controller after the warm boot. .select the wind volume by the temperature in the automatic wind volume modeRefer to the temperature level control function

3.1.4 Frost-removing operation The blower stops after 20 seconds When receiving the I21=11 signal from the outdoor unit in the heat frost-removing mode, warm boot will be done according to the hear exchange sensor. The wind volume control is the same with 3.1.1 When the frost-removing process if over, if the compressor is on, the wind volume control will be warm-booted; if the compressor if switched off, the wind volume will be weak.

3.2 cooling running

The wind volume can be set to strong, medium and weak. Automatic wind volume function will decide the wind volume according to the temperature

3.3 Moisture removing running

3.3.1 Compressor off, idle mode for 3 minutes The blower fan stops as the compressor stops The operation is weak after 3 minutes’ idle mode After stand by for 3 minutes, the compressor is on.

3.3.2 Compressors on The compressor operates as the set wind volume when the wind volume is set to be strong, medium or weakThe wind volume is decided according to the temperature adjusting when the wind volume is set to be automatic.

Picture 3.4 Moisture removing running

Level H 3minutes idle mode Compressor OFF

Setting slightly weak OFF weak weak setting


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Powerful running

Powerful running for 15 minutes The running stops or ends the powerful running after 15 minutes The mode switch ends the powerful running Enter into the silent mode, normal running mode or timed switching on mode to end the powerful running When in automatic mode, there are powerful and silent functions for your choice. When the main unit is in cooling mode, it operates with powerful cooling or silent cooling. When the main unit is in heating mode, it operates with powerful heating or silent heating. When the main unit is in wind-sending mode, there are no powerful or silent modes.

4.1 Powerful heating Change the set temperature. With temperature adjusting function The wind volume is the automatic medium When in frost removing mode, the outdoor unit does not accept the communication signal for powerful running After 15 minutes of powerful running, the compressor can not be off within 10 minutes

4.2 Powerful cooling Change the set temperature. With temperature adjusting function The wind volume is the automatic strong After the compressor starts, there will be no low-intense running protection within 3 minutes

4.3 There is no powerful mode for wind-sending and moisture removing

Silent running Send the silent running signal to the outdoor unit

5.1 Silent hearing The wind volume is SSLO after the compressor is on The wind volume will be kept SSLO within 20 seconds after the compressor stops and then changes to weak

5.2 Silent cooling The wind volume is SSLO

5.3 There is no silent mode for moisture removing and wind-sending.

Air cleaning If the blower fan starts working after receiving the remote-control order, the aion generator starts working and sends out ions. The ion generator stops as the blower fan stops.


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When the ion generator is OFF and the air cleaning function is on, the blower fan starts running and the ion generator starts working again.

Timed running Set the time duration according to the time difference between the clock for timing and the current clockIn timing mode, the display panel will flash the light at fixed times

7.1 Timed OFF When this function is set, operation modes on the panel display will not change. The timing icon will show and the operation stops when the set time comes.

7.2 Timed ON When this function is on, the panel display will only display a question mark. The unit will operate as the set mode when the time comes.

7.3 Timed ON/OFF The unit will start operating or stop according to the order of your setting.

Sleeping Running 8.1When under the mode of cooling or moisture removing, the set temperature will rise by 1 after 1 hour and another 1 after the next hour. 6 more hours later the operation stops.

8.2Under the heating mode, the set temperature will fall by 2 every 1 hour within the first two hours. It will rise by 1 after another 3 hours and stop after running for 3 hours.

8.3If the indoor blower fan is set to be strong wind before setting the sleeping running, it will be medium wind after setting the sleeping running. If the indoor blower fan is set to be medium wind before setting the sleeping running, it will be weak wind after setting the sleeping running. If the indoor blower fan is set to be weak wind before setting the sleeping running, the running speed of the blower will not change.

Automatic running

9.1 Automatic running mode Under this mode, the MCU will choose the work mode according to the room temperature so as to keep the set temperature (set 23 for heating mode and 26 for cooling mode)

When the unit is powered on for the first time and the room temperature is equal to or below 23 , it


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will start the heating mode or the cooling mode when the room temperature is higher than 23

Enter into the heating mode and follow the heating process (supposed temperature 23 ). When the temperature is high enough to stop the compressor, the compressor stops and there will 3 minutes of idle mode. If the compressor senses the incoming wind temperature is higher than 23 after it stops for 15 minutes, the unit will switch to cooling mode. Otherwise it will keep the heating mode.

Enter into the cooling mode and follow the cooling process (supposed temperature 26 ).Compensation temperature difference will be cancelled automatically. When the temperature is high enough to stop the compressor, the compressor stops and there will be 3 minutes for idle mode. If the If the compressor senses the incoming wind temperature is equal to or below 23 after it stops for 15 minutes, the unit will switch to heating mode. The compensation temperature will be added automatically. Otherwise it will keep the cooling mode. When the unit switches from other modes to automatic mode, if the work state changes (judge first and then work), there will be 3 minutes for idle mode. Ant then the temperature will change to the judged level according to the incoming wind temperature.

Trial running


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The indicated frequency for trial running is 58Hz, wind volume is strong. The trial running will last for 30 minutes and then the unit will be powered off. The unit will exit the trial running if it receives any remote-control signal during the trial running period. There is no low-intense running protection.

Low Work-intense protection control Specification for heat-exchange temperature sensor B fixed number=3700 R(25 )= 10KUnder the cooling /moisture removing modes, the low work-intense protection will be carried out according to the heat-exchange temperatures as shown in the table below. Low Work-intense protection control Picture 11.1 Heat-exchange temperature THLHEATBL3 THLHEATBL2 THLHEATBL1 THLHEATBL0

Indicationlevel Normal level2 level 1 stop level 1 level 2

normal

Low Work-intense protection control will be neglected in the trial running. Low Work-intense protection control will be cancelled for 3 minutes temporarily after the powerful cooling starts for 1 minute (THLH[3 2 1 0]= 7 4.6 2.2 -0.5 )

High Work-intense protection control

Under the heating mode, the high work-intense protection will be carried out according to the heat-exchange temperatures as shown in the table below.

High Work-intense protection control:


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Heat-exchange temperature frequency values when the high work-intense starts THHEAT6 74.7 THHEAT5 70.3 THHEAT4 65.1 THHEAT3 62.2 THHEAT2 52.9 THHEAT1 51.6 THHEAT0 47.1

Indicatedfrequency

C D E D C B A B C D E Normal idle mode stop

High Work-intense protection High Work-intense protection alarm

High Work-intense protection alarm will start if there are two times of high work-intense protection within 30 minutes.

If the heat-exchange temperature does not reach THHEAT [2], it will resume to the normal temperature level control

The smaller one of the high work-intense frequency and level frequency will be the operation data.

1. EEPROM control EEPROM is wrong when the EEPROM parameter sum does not accord with the check sum after the outdoor unit is powered on. The outdoor unit EEPROM is wrong will be displayed when the indoor unit receives wrong EEPROM signals from the outdoor unit. In this case the control and emergency operation are not allowed. Unplug the unit to shoot the problem.

. Special functions 1. Power failure compensation

a. To enter into the function please press the sleep key 10 times with 4 beeps in 7 seconds and store the current state in the EEPROM of the indoor unit.

b. The indoor unit operates as follows when under the power failure compensation mode. Remote-control the emergency signal. The indoor unit operates as the remote-control and the emergency setting and store the current state in the EEPROM in the indoor unit.

The main unit operates as the set state on the display panel and stores the state in the EEPROM. Under the power failure compensation mode, unplug and plug again, the main unit will send the signals for current operation and power failure compensation to the indoor unit panel.


1

a. Press the sleep key for 10 times with 2 beeps in 7 seconds to exit.

b. To set the timing and sleep function under the power failure compensation mode please plugs theunit after power failure and the main unit memory would be OFF state.

.System Major Function Sensor Code Definition: Tai= Indoor Ambient Temperature, Tao=Outdoor Ambient Temperature,Tc1=Indoor Coil, Td= Air Discharge, Te= Outdoor Coil, Ts=Air Intake

1.1 Outdoor Unit Operation Frequency and Control

1.1.1 Compressor Operation Frequency Control

Compressor Operation Frequency Range:

1.1.2 Compressor StartupRegardless of target frequency of indoor unit, each time when compressor is from off to on, it mustmaintain 60Hz,90Hz for one minute (Frequency will be immediately decreased under the condition thatoutdoor unit air discharge temperature overheating protection is activated or over current ofcompressor) then the compressor will operate towards target frequency. This process does not exist innormal operation of unit.

Outdoor Unit

OutdoorTemperatureHeatingDefrostingOutdoorTemperatureCooling


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1.1.3 Heating: When completing compressor startup operation, it will operate as per frequency of indoor unit. After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.

1.1.4 Cooling & Dehumidification: When completing compressor startup operation, it will operate as per frequency of indoor unit. After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.

1.1.5 Compressor Frequency Increase/Decrease Speed Rapid Frequency Increase/Decrease Speed 1 ----------1HZ/s Slow Frequency Increase/Decrease Speed 2 -----------1HZ/10s

1.2 Outdoor Fan Control

Outdoor TemperatureCoolingHeating

Compressor Operation Frequency

1.3 Outdoor Electronic Expansion Valve Control

1.3.1 The following is a description of electronic expansion valve operation: Energization Initial Operation


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Valve Complete Off Operation Valve operation after Compressor Startup and shutdown. Compressor Startup: Opening of valve must ensure restart of compressor when reaching benchmark opening. Compressor Shutdown It ensures complete off of valve after compressor shuts down.

1.3.2 Around the 2nd minute after compressor startup, valve opening can be adjusted based on various outdoor ambient temperature and corresponding frequency. Overheat benchmark will be adjusted if air discharge temperature is too high or too low in cooling or heating mode.

1.3.3 Valve Adjustment Time Interval and Method Valve Adjustment in Cooling Mode In cooling mode, if Tao>Tai The system will adjust valve based on difference between compressor intake air temperature and indoor unit coil temperature. Valve Adjustment in Heating Mode The system will adjust valve based on difference between compressor intake air temperature and defrosting temperature. 1.4 Four-way Valve Control

Defrosting Four-way Valve Control (please see defrosting process for details) Time sequence of the defrosting operation is as follows:

Four-way Valve Work Status in Other Modes: In heating mode, four-way valve is on. If compressor is off or is switched to non-heating mode, four-way valve ensures that it is off at least 2 minutes after compressor shuts down.

1.5 Outdoor Defrosting Control

1.5.1 Defrosting Mode Entry Conditions The unit will enter defrosting mode when compressor starts up and operates for 10 minutes continuously in heating mode or after compressor runs for an accumulated time of 45 minutes (Upon completion of defrosting or when switched to cooling mode, compressor accumulated operation time will be cleared) and when 2 minutes’ continuous checking by defrosting sensor TE (check frosting condition of outdoor unit heat exchanger) and outdoor ambient temperature sensor TA meets the following conditions: TE C×TAAmong which: C:TA 0 C=0.8 TA 0 C=0.6For area prone to frost, the value is set at 6 when unit leaves the factory. Defrosting entry temperature control -15 C×TA -5

1.5.2 Defrosting Time Interval time interval between two defrosting cycles is 45 minutes.


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1.5.3 Defrosting Operation When defrosting begins, compressor will stop for one minute, external fan is running and 50s later, four-way valve will be off. When compressor starts, external fan will be off, compressor will run at 60HZ for 60s then move on to target frequency of 80HZ. During defrosting, compressor current and air discharge overheat protection features are effective. During defrosting, if compressor shuts down due to activation of protection feature or due to malfunction, it will resume after 3 minutes. In the unit is still within defrosting cycle, it will resume defrosting and startup of compressor will be based on the rule for defrosting startup. (The unit will exit defrosting mode and handle fault in the event of 3 consecutive restart failures.) On entering defrosting, it must guarantee that compressor will operate for a minimum of 2 minutes in defrosting mode before exit.

1.5.4 Defrosting Exit Condition When one of the following conditions is met, defrosting operation will be switched to heating operation.

1 :Temperature of outdoor heat exchanger exceeds 7 for 80s continuously2 : Temperature of outdoor heat exchanger exceeds 12 for 5s continuously3 :Defrosting operation continues for 9 minutes.

1.5.5 When defrosting exit conditions are met, the unit will operate as follows Compressor stops and external fan starts, 50s later, four-way valve will be on, 60s later, compressor will operate as per startup process.

1.6 PTC Output Control

When outdoor unit is energized, PTC output value is 0, 10s later, output value is 1. When compressor stops for 10 minutes continuously, PTC output value is 0. On receiving compressor startup instruction, initial PTC output is 1, and compressor startup will be performed 5s later.

. System Protection Function

2.1 Time interval between compressor shutdown and restart is set at 3 minutes to ensure that compressor will only restart after 3-minute shutdown and initial energization valves are turned on to adequate opening position after being fully turned off.

2.2 TD High Temperature Protections

As long as unit is on, the TD air discharge overheat protection feature will be activated, yet air discharge sensor fault must be alarmed 4 minutes after compressor starts.


5

TD Abnormal Shutdown

1 1 7 Rapid frequency drop 1HZ/s

1 1 2 Slow frequency drop (1HZ/10s)

1 0 8 Invariable frequency

1 0 5 Frequency rise (1HZ/10s)

98 Frequency rise 1HZ/1 s

When TD>110 for 20s continuously air discharge overheat protection will be activated and fault willbe reported to indoor unit.It will not continue in other conditions.

2.3 Outdoor Temperature Limit

Cooling: When outdoor temperature is lower than 15 , cooling operation will start, compressorfrequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.Heating: When outdoor temperature is higher than 20 , heating operation will start, compressorfrequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.

2.4 Rated Operation

Rated Cooling:When receiving the instruction of indoor unit rated operation, the unit will start rated cooling operation.Rated Heating:When receiving the instruction of indoor unit rated operation, the unit will start rated heating operation.

2.5 Special Features

1. Forced Cooling: When receiving indoor forced cooling signal, cooling operation will start in afrequency signaled by indoor unit. Only air discharge temperature and over current protection featuresare effective and other protection features are invalid.2. Rated, Middle and Minimum Capacity Operation: When receiving indoor, rated, middle andminimum capacity operation signal, outdoor unit will operate as per wind speed and frequency set byEEPROM and all the protection features are effective.

2.6 Fault Display and Treatment

In case outdoor unit faults, the alarm indicator lamp will blink and blink frequency is 1HZ Time intervalbetween blink cycles is 3s.Alarm indicator lamp is off when there is no fault.


- 2 6 -

4. Thermistor resistance chartIndoor ambiend temperature sensor

Temp. ( ) R (KO) Power Input (V)-20 281.34 0.33-19 263.56 0.35-18 247.84 0.37-17 231.66 0.40-16 217.35 0.42-15 204.02 0.45-14 191.61 0.47-13 180.04 0.50-12 169.24 0.53-11 159.17 0.56-10 149.77 0.59-9 140.99 0.62-8 132.78 0.65-7 126.11 0.69-6 117.93 0.73-5 111.22 0.76-4 104.93 0.80-3 98.04 0.84-2 93.52 0.88-1 88.35 0.920 83.50 0.971 78.94 1.012 74.67 1.063 70.65 1.104 66.88 1.155 63.33 1.206 60.00 1.257 56.88 1.008 53.91 1.359 51.15 1.41

10 48.51 1.4611 46.04 1.5112 43.72 1.5713 41.52 1.6314 39.45 1.6815 37.50 1.7416 35.66 1.80


- 2 7 -

17 33.92 1.8518 32.27 1.9119 30.72 1.9720 29.25 2.0021 27.85 2.0922 26.54 2.1523 25.30 2.2124 24.12 2.2725 23.00 2.3326 21.94 2.3827 20.94 2.4428 19.99 2.5029 19.09 2.5630 18.23 2.6231 17.42 2.6732 16.65 2.7333 15.92 2.7834 15.22 2.8435 14.56 2.8936 13.93 2.9537 13.04 3.0038 12.77 3.0539 12.23 3.1040 11.71 3.1541 11.22 3.2042 10.76 3.2543 10.31 3.3044 9.89 3.3545 9.46 3.3946 9.10 3.4447 8.74 3.4848 8.39 3.5249 8.05 3.5750 7.73 3.5151 7.43 3.6552 7.14 3.6853 6.86 3.7254 6.60 3.7655 6.34 3.8056 6.10 3.8357 5.87 3.3758 5.65 3.9059 5.44 3.9360 5.24 3.96


- 2 8 -

61 5.04 3.9962 4.86 4.0263 4.68 4.0564 4.51 4.0865 4.35 4.1166 4.13 4.1367 4.04 4.1668 3.90 4.1869 3.76 4.2170 3.63 4.2371 3.50 4.2572 3.38 4.2873 3.26 4.3074 3.15 4.3275 3.04 4.3476 2.94 4.3677 2.84 4.3878 2.74 4.4079 2.65 4.4280 2.56 4.43

Indoor pipe temperature sensorTemperature( ) R(KO) Power Input(V)

-20 90.79 0.90-19 85.72 0.95-18 80.96 0.99-17 76.51 1.04-16 72.33 1.08-15 68.41 1.13-14 64.73 1.18-13 61.27 1.23-12 58.02 1.28-11 54.97 1.33-10 52.10 1.39-9 49.40 1.44-8 46.88 1.50-7 44.46 1.55-6 42.21 1.61-5 40.08 1.66-4 38.08 1.72-3 36.19 1.78-2 34.41 1.84


- 2 9 -

-1 32.73 1.900 31.24 1.981 29.84 2.012 28.22 2.073 26.88 2.134 25.61 2.195 24.41 2.256 23.27 2.317 22.20 2.378 21.18 2.439 20.21 2.49

10 19.30 2.5411 18.43 2.6012 17.61 2.5613 16.83 2.7214 16.09 2.7715 15.38 2.8316 14.71 2.8817 14.08 2.9318 13.48 2.9919 12.90 3.0420 12.38 3.0921 11.64 3.1422 11.34 3.1923 10.87 3.2424 10.43 3.2925 10.00 3.3326 9.59 3.3827 9.21 3.4228 8.84 3.4729 8.48 3.5130 8.15 3.5531 7.83 2.5932 7.52 3.6333 7.23 3.6734 6.95 3.7135 6.68 3.7536 6.43 3.7837 6.19 3.8238 5.95 3.8639 5.73 3.8940 5.52 3.9241 5.32 3.9542 5.12 3.98


- 3 0 -

43 4.93 4.0144 4.75 4.0445 4.58 4.0746 4.42 4.1047 4.26 4.1248 4.11 4.1549 3.97 4.1750 3.83 4.2051 3.70 4.2252 3.57 4.2453 3.45 4.2654 3.33 4.2855 3.22 4.3156 3.11 4.3357 3.00 4.3558 2.90 4.3759 2.81 4.3860 2.72 4.4061 2.63 4.4262 2.54 4.4463 2.45 4.4564 2.36 4.4765 2.30 4.4866 2.23 4.5067 2.15 4.5168 2.09 4.5369 2.03 4.5470 1.96 4.5571 1.90 4.5772 1.85 4.5873 1.79 4.5974 1.73 4.6075 1.68 4.6176 1.63 4.6277 1.58 4.6378 1.54 4.6479 1.49 4.6580 1.45 4.66

-30

-28

-26

-24

-22

-20

-18

-16

-14

-12

-10

-8

-6

-4

-2

0123456789

1011121314151617181920212223242526

Outdoor ambient temp.sensor and Pipe sensor


- 3 1 -

27282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384


- 3 2 -

temperature Max Nomal Min temperature Max Nomal Min( ) (KO) (KO) (KO) ( ) (KO) (KO) (KO)-30 14646.0505 12061.7438 9924.4999 -2.96 2.45 57 129.2457 122.1630 115.3645 -1.40 1.34-29 13654.1707 11267.8730 9290.2526 -2.95 2.44 58 123.8956 117.2504 110.8618 -1.37 1.32-28 12735.8378 10531.3695 8700.6388 -2.93 2.44 59 118.7926 112.5589 106.5564 -1.35 1.30-27 11885.1336 9847.7240 8152.2338 -2.92 2.43 60 113.9241 108.0776 102.4388 -1.32 1.28-26 11096.6531 9212.8101 7641.8972 -2.91 2.42 61 109.2784 103.7961 98.5000 -1.30 1.26-25 10365.4565 8622.8491 7166.7474 -2.90 2.42 62 104.8443 99.7046 94.7315 -1.28 1.23-24 9687.0270 8074.3787 6724.1389 -2.88 2.41 63 100.6112 95.7939 91.1253 -1.25 1.21-23 9057.2314 7564.2244 6311.6413 -2.87 2.41 64 96.5692 92.0553 87.6735 -1.23 1.19-22 8472.2852 7089.4741 5927.0206 -2.86 2.40 65 92.7088 88.4805 84.3690 -1.20 1.17-21 7928.7217 6647.4547 5568.2222 -2.84 2.39 66 89.0211 85.0614 81.2048 -1.18 1.15-20 7423.3626 6235.7109 5233.3554 -2.83 2.39 67 85.4976 81.7908 78.1744 -1.15 1.12-19 6953.2930 5851.9864 4920.6791 -2.82 2.38 68 82.1303 78.6615 75.2715 -1.13 1.10-18 6515.8375 5494.2064 4628.5894 -2.80 2.37 69 78.9116 75.6668 72.4902 -1.10 1.08-17 6108.5393 5160.4621 4355.6078 -2.79 2.37 70 75.8343 72.8004 69.8249 -1.08 1.06-16 5729.1413 4848.9963 4100.3708 -2.77 2.36 71 72.8916 70.0561 67.2703 -1.05 1.03-15 5375.5683 4558.1906 3861.6201 -2.76 2.35 72 70.0770 67.4283 64.8213 -1.03 1.01-14 5045.9114 4286.5535 3638.1938 -2.75 2.34 73 67.3844 64.9115 62.4731 -1.00 0.99-13 4738.4141 4032.7098 3429.0191 -2.73 2.34 74 64.8080 62.5006 60.2211 -0.98 0.96-12 4451.4586 3795.3910 3233.1039 -2.72 2.33 75 62.3423 60.1906 58.0609 -0.95 0.94-11 4183.5548 3573.4260 3049.5312 -2.70 2.32 76 59.9821 57.9770 55.9885 -0.92 0.92-10 3933.3289 3365.7336 2877.4527 -2.69 2.31 77 57.7223 55.8552 53.9998 -0.90 0.89-9 3699.5139 3171.3148 2716.0828 -2.67 2.30 78 55.5583 53.8210 52.0912 -0.87 0.87-8 3480.9407 2989.2460 2564.6945 -2.66 2.29 79 53.4856 51.8706 50.2591 -0.85 0.84-7 3276.5302 2818.6731 2422.6139 -2.64 2.28 80 51.5000 50.0000 48.5000 -0.85 0.84-6 3085.2854 2658.8058 2289.2164 -2.63 2.28 81 49.7063 48.2057 46.7083 -0.85 0.85-5 2906.2851 2508.9126 2163.9230 -2.61 2.27 82 47.9835 46.4842 44.9911 -0.89 0.89-4 2738.6777 2368.3158 2046.1961 -2.60 2.26 83 46.3286 44.8323 43.3452 -0.93 0.92-3 2581.6752 2236.3876 1935.5371 -2.58 2.25 84 44.7385 43.2468 41.7672 -0.96 0.95-2 2434.5487 2112.5459 1831.4826 -2.56 2.24 85 43.2105 41.7248 40.2540 -1.00 0.99-1 2296.6230 1996.2509 1733.6024 -2.55 2.23 86 41.7386 40.2604 38.7996 -1.03 1.020 2167.2730 1887.0018 1641.4966 -2.53 2.22 87 40.3241 38.8545 37.4048 -1.07 1.061 2045.9191 1784.3336 1554.7931 -2.52 2.21 88 38.9643 37.5045 36.0668 -1.11 1.092 1932.0242 1687.8144 1473.1460 -2.50 2.20 89 37.6569 36.2078 34.7831 -1.14 1.133 1825.0899 1597.0431 1396.2333 -2.48 2.19 90 36.3996 34.9622 33.5513 -1.18 1.164 1724.6540 1511.6468 1323.7551 -2.47 2.17 91 35.1903 33.7653 32.3689 -1.22 1.195 1630.2870 1431.2787 1255.4324 -2.45 2.16 92 34.0269 32.6151 31.2338 -1.26 1.236 1541.5904 1355.6163 1191.0048 -2.43 2.15 93 32.9075 31.5096 30.1438 -1.30 1.277 1458.1938 1284.3593 1130.2298 -2.41 2.14 94 31.8302 30.4467 29.0970 -1.33 1.308 1379.7528 1217.2282 1072.8813 -2.40 2.13 95 30.7933 29.4246 28.0915 -1.37 1.349 1305.9472 1153.9626 1018.7481 -2.38 2.12 96 29.7950 28.4417 27.1254 -1.41 1.3710 1236.4792 1094.3200 967.6334 -2.36 2.11 97 28.8337 27.4961 26.1970 -1.45 1.4111 1171.0715 1038.0743 919.3533 -2.35 2.09 98 27.9078 26.5864 25.3048 -1.49 1.4412 1109.4661 985.0146 873.7359 -2.33 2.08 99 27.0160 25.7110 24.4470 -1.53 1.4813 1051.4226 934.9440 830.6210 -2.31 2.07 100 26.1569 24.8685 23.6222 -1.57 1.5214 996.7169 887.6792 789.8583 -2.29 2.06 101 25.3290 24.0574 22.8291 -1.61 1.5515 945.1404 843.0486 751.3077 -2.27 2.04 102 24.5311 23.2765 22.0662 -1.65 1.5916 896.4981 800.8922 714.8380 -2.26 2.03 103 23.7620 22.5245 21.3323 -1.69 1.6317 850.6086 761.0603 680.3265 -2.24 2.02 104 23.0205 21.8002 20.6261 -1.73 1.6618 807.3024 723.4134 647.6580 -2.22 2.00 105 22.3055 21.1025 19.9465 -1.77 1.7019 766.4212 687.8205 616.7252 -2.20 1.99 106 21.6159 20.4303 19.2924 -1.81 1.7420 727.8172 654.1596 587.4271 -2.18 1.98 107 20.9508 19.7825 18.6626 -1.85 1.7721 691.3524 622.3161 559.6694 -2.16 1.96 108 20.3091 19.1582 18.0563 -1.89 1.8122 656.8979 592.1831 533.3634 -2.14 1.95 109 19.6899 18.5564 17.4723 -1.93 1.8523 624.3328 563.6604 508.4261 -2.12 1.93 110 19.0924 17.9761 16.9098 -1.98 1.8924 593.5446 536.6540 484.7796 -2.10 1.92 111 18.5157 17.4166 16.3680 -2.02 1.9325 564.4275 511.0760 462.3510 -2.09 1.90 112 17.9590 16.8769 15.8458 -2.06 1.9626 536.9865 486.9352 441.1516 -2.07 1.89 113 17.4214 16.3564 15.3427 -2.10 2.0027 511.0105 464.0500 421.0258 -2.05 1.87 114 16.9023 15.8542 14.8577 -2.15 2.0428 486.4151 442.3499 401.9146 -2.03 1.86 115 16.4010 15.3696 14.3902 -2.19 2.0829 463.1208 421.7683 383.7626 -2.01 1.84 116 15.9167 14.9020 13.9394 -2.23 2.1230 441.0535 402.2430 366.5175 -1.99 1.83 117 15.4489 14.4506 13.5047 -2.27 2.1631 420.1431 383.7151 350.1301 -1.97 1.81 118 14.9968 14.0149 13.0855 -2.32 2.1932 400.3242 366.1295 334.5542 -1.95 1.80 119 14.5599 13.5942 12.6811 -2.36 2.23

E( )

E( )


Discharging Piper Sensor

-33 -

temperature Max Nomal Min mperatu Max Nomal Min( ) (KO) (KO) (KO) ( ) (KO) (KO) (KO)

E( )

E( )

33 381.5350 349.4341 319.7460 -1.93 1.78 120 14.1376 13.1879 12.2909 -2.41 2.2734 363.7176 333.5801 305.6645 -1.90 1.76 121 13.7294 12.7955 11.9144 -2.45 2.3135 346.8176 318.5216 292.2709 -1.88 1.75 122 13.3347 12.4165 11.5510 -2.50 2.3536 330.7839 304.2151 279.5286 -1.86 1.73 123 12.9531 12.0503 11.2003 -2.54 2.3937 315.5682 290.6199 267.4031 -1.84 1.71 124 12.5840 11.6965 10.8617 -2.58 2.4338 301.1254 277.6976 255.8620 -1.82 1.70 125 12.2270 11.3545 10.5348 -2.63 2.4739 287.4128 265.4119 244.8745 -1.80 1.68 126 11.8817 11.0240 10.2191 -2.68 2.5140 274.3905 253.7288 234.4118 -1.78 1.66 127 11.5475 10.7046 9.9142 -2.72 2.5541 262.0206 242.6161 224.4465 -1.76 1.64 128 11.2242 10.3957 9.6197 -2.77 2.5942 250.2676 232.0436 214.9529 -1.74 1.63 129 10.9112 10.0970 9.3352 -2.81 2.6343 239.0983 221.9825 205.9065 -1.71 1.61 130 10.6084 9.8082 9.0602 -2.86 2.6744 228.4809 212.4060 197.2844 -1.69 1.59 131 10.3151 9.5288 8.7945 -2.91 2.7145 218.3860 203.2887 189.0648 -1.67 1.57 132 10.0312 9.2586 8.5378 -2.95 2.7546 208.7855 194.6066 181.2273 -1.65 1.55 133 9.7563 8.9971 8.2895 -3.00 2.8047 199.6531 186.3369 173.7524 -1.63 1.54 134 9.4901 8.7441 8.0495 -3.05 2.8448 190.9639 178.4584 166.6217 -1.60 1.52 135 9.2322 8.4993 7.8175 -3.09 2.8849 182.6945 170.9508 159.8181 -1.58 1.50 136 8.9824 8.2623 7.5931 -3.14 2.9250 174.8228 163.7951 153.3249 -1.56 1.48 137 8.7404 8.0329 7.3760 -3.19 2.9651 167.3280 156.9733 147.1268 -1.53 1.46 138 8.5059 7.8108 7.1660 -3.24 3.0052 160.1904 150.4683 141.2090 -1.51 1.44 139 8.2787 7.5958 6.9629 -3.29 3.0453 153.3914 144.2641 135.5577 -1.49 1.42 140 8.0584 7.3875 6.7664 -3.33 3.0954 146.9136 138.3454 130.1598 -1.47 1.4055 140.7403 132.6980 125.0027 -1.44 1.3856 134.8559 127.3081 120.0746 -1.42 1.36


- 3 4 -

HSU-09,12,18,22HC03/R2(DB) Edition: 1.0-070801

Domestic Air Conditioner

5.5.1 Error Codes and Description

Code indication

indoorOutdoor

(LED1 flashtimes)

DescriptionReference

Page

Indoorand Outdoor15

Communication fault between indoor and outdoor

units

Room temperature sensor failure

Heat-exchange sensor failure

Indoor EEPROM error

Indoor fan motor malfunction

Indoor Malfunction

High work-intense protection

1 Outdoor EEPROM error

The protection of IPM

Overcurrent protection of AC electricity for

the outdoor model

4Communication fault between the IPM and outdoor

PCB

6 Power voltage is too high or low

8 Overheat protection for exhaust temperature

10 Frost-removing temperature sensor failure

12 Ambient temperature sensor failure

13 Exhaust temperature sensor failure

Outdoor Malfunction

Note indoor :the display board ,representative extinguish , representative flash , representative light

36-37

38

38

38

39

40

38

41

43

42

42

44

45

45

45

18 deviate from the normal for the compressor

19 Loop of the station detect error

24 Overcurrent of the compressor

25Overcurrent protection for single-phase of the

compressor

46

47

47

47


-36-Domestic Air Conditioner

5.2 Trouble Shooting

5.2.1 between indoor and outdoor units : LED1 flash 15 times Communication fault between the indoor and

outdoor units

NO

YES

YES

YES

NO

NO

NO

YES

Restart the a/c and it

becomes normally? The outdoor mainboard needs dewetting

If starting up normally, but

malfunction occurs again

after a while

The outdoor mainboard needs dedusting

Check whether the linking cable

between the indoor and outdoor

is well connected and whether its

core wires are well insulated.

1. Reconnect the linking cable;

2. Replace the linking cable with new one.

I Check the status of LED1 on the indoor mainboard.

1)If LED1 keeps on lighting, the indoor mainboard is

damaged

2)If LED1 blinks interruptedly, measure the voltage

between Jumpers 3 and 4 of IC7on the indoor

mainboard with a multimeter. If the voltage is of a

constant value of 0VDC or 5VDC, the indoor

mainboard is damaged;

The indoor PCB might be

broken



YES

If LED1 of indoor blinks interruptedly,

measure the voltage between Jumpers 3

and 4 of IC7on the indoor mainboard with a

multimeter. If the voltage varies between 0

and 3VDC, the outdoor mainboard is

damaged.

The outdoor PCB might be

broken

If LED1 of indoor keeps OFF

1. Test the outdoor power supply (230VAC and +310VDC) with a multimeter. If 230VAC is available

but 310DC not, rectifying bridge is damaged, replace it with a new one. If both 230VAC and

310DC are available, go forward to step 2.

2. Measure the voltage across Jumpers 1 and 2of IC6(7805) on the outdoor mainboard with a

multimeter. If +12DC is not available, the outdoor pcb is damaged, replace it with a new one. If

+12VDC is available, go forward to step 3.

3. Within two minutes after the machine is supplied with power and turn on, measure the AC voltage

between positions 1 and 3 on the terminal of outdoor unit with a multimeter. If the value varies

between 0 and 80 VAC, the outdoor mainboard is damaged, replace it with a new one. If the value is

constant at about 30V, the indoor mainboard is damaged, replace it with a new one.

HSU-09,12,18,22HC03/R2(DB) Edition:1.0-070801


7.2.2 Indoor Malfunction: Room temperature sensor failure : Heat-exchange sensor failure

: Indoor or outdoor EEPROM error:

Check whether LED1 on theoutdoor unit blinks 1 times

The outdoor mainboard is damaged. Replace it with a

new one.

If the malfunction still existsthe indoor mainboard is damaged, and needs

replacing with a new one.

Yes

NO

YES

whether terminal CN8 on

indoor PCB contact wellt?

Pull out the terminals on the indoor mainboard and

reinsert them

Pull the sensor out of the mainboard

1) Measure the value of resistance Between its two

jumpers

2) Measure the temperature at the room temperature

sensing head.

Check the value of the

sensor to see whether the

sensor is damaged or not?

NO

Sensor is broken,replace it with new sensor

The indoor PCB is broken, replace with new indoor PCB

Yes

YesNO


-39 -Domestic Air Conditioner

:Indoor fan motor malfunction

Notes: When the unit is on ,don’t pull out or insert the terminal of the motor (CN9), or else The motor would be damaged.

YES

NO

YES

whether terminal CN9

and CN8 on indoor PCB

well inserted or not?

Pull out and reinsert the terminals

Electrify the machine again and turn it on in the cooling

operation

Measure whether there is voltage 60vac-230vac

between the red wire and the black wire of Terminal CN9

on the indoor mainboard.

NO

the indoor mainboard is damaged and need replace

check whether motor can run when turn on the unit the indoor motor is damaged and need replace

NO

When fan motor is running Measure whether there is

voltage pulse between the middle wire and the black side

wire of Terminal CN8 on the indoor mainboard.

YES

the motor of the indoor unit is damaged and need

replace

NO

the indoor mainboard is damaged and need replace

YES


-40 -Domestic Air Conditioner

: High work-intense protection

YES

NO

the malfunction is reported

after the machine has run

for some time?

Check room temperature and pipe temp sensor.

Electrify the machine again and turn it on with the remote

controller, check whether the wind temperature is below

72

YES

NO

the indoor unit blows poorly

due to blocked filters or poor

condition of the fan?

1) Clean the filters

2) Reinstall the fan.

Use some tools to measure whether the pressure of the The system is over charged with gas

YES

the system is too high?



5.2.3 Outdoor Unit Malfunction

LED1 flash 2 times: The protection of IPM

YES

YES

NO

whether it is too high.? IPM Module might be poorly radiated and need to be

recoated with heat conducting paste and reinstalled.


controller, then measure temperature on the module

radiator

With a multimeter, test whether there is diode

characteristic between the three terminals U/V/W and

whether the two terminals P/N of IPM module and the

diode characteristic is exist.

NOIPM Module is damaged and needs replacing.

Test with a multimeter whether the resistance values

among Phases U, V and W of compressor are equal and

between 1 and 3 , if it does exist, the compressor

should be damaged.



LED1 flash 4 times: Communication fault between the IPM and outdoor PCB

Indoor : LED1 flash 6 times : Power voltage is too high or low

NO

YES

NO

Are they good? 1) Pull out and reinsert the terminals.

2) Replace connected wire

1) Check whether Terminal CN14 and CN8 on the outdoor

mainboard CN10 and CN11 on IPM module

2) Check whether the connected wire between IPM and outdoor

Electrify the machine again and turn it on, Check whether

the voltage between 1 and 2 of Terminal CN8 is about

DC5V, Check whether the voltage between2 and 3 of

Terminal CN8 is about DC15V,

YES

Replace the outdoor IPM module with a new one.

Replace the outdoor mainboard with a new one

YES

NO

the voltage between P and

N of Terminal CN1 is below

120vDC or up 400vDC?

The IPM module is damaged and needs replacing

NO

YES

the voltage between 1 and 2

on the terminal of outdoor is

about 187-260VAC?

Check power supply.

NO

YES

the voltage between 2 and 4

on the rectifying bridge of

outdoor is 187-260VAC?

The reactor of outdoor is damage and replace a new one

the rectifying bridge or IPM module is damage and need tobe replaced.



Indoor : LED1 flash 3 times : AC electricity protection

Electrify the machine again and turn it

on with the remote controller,If

malfunctions are reported before or upon

the compressor being started up

The compressor is started normally, but

malfunctions are reported after it has run

for some time.Check the power supply. If

the voltage is too low or too high

If the power supply is in OK,meassuer

whether the pressure of the system is too

high or too low?

The IPM is broken

repair The power supply

the system may have been

over or under charged

with gas

YES

YES

YES

NO

NO



Indoor: LED1 flash 8 times: Overheat protection for exhaust temperature

NO

NO

YES

NO

the temperature exceeds

110 shortly after the

machine starts up?

1) The cryogen may have been leaked during

installation, or there may be leakage in the piping

system.

2) There may be other causes to make the exhaust

temperature too high.


controller, then measure the temperature at the exhaust

temperature sensor of the compressor on the outdoor unit

Measure the temperature at the exhaust temperature

sensor of the compressor on the outdoor unit

YES

NO

Malfunctions occur after running for

some time? even though the

measured temperature is below 110

.

Exhaust temperature sensor is broken and needs be

replaced

Pull out the exhaust sensor and measure its resistance

at standard temperatures according to the

resistance-temperature table

YES

The sensor is damaged. Replace the sensor with a new

one.

the results deviate much? YES

The sensor is damaged. Replace the sensor with a new

one.

The outdoor mainboard is damaged and needs be

replaced

NO



Indoor: LED1 flash 10 times: Frost-removing temperature sensor failure CN10 Indoor: LED1 flash 13 times: Exhaust temperature sensor failure CN13 Indoor: LED1 flash 12 times: Ambient temperature sensor failure CN11

NO

YES

CN10,CN11,CN13 on the

outdoor mainboard contact

well?

Pull out the terminals on the outdoor mainboard and

reinsert them.

Pull the sensor out of the mainboard

1) Measure the value of resistance between its two

jumpers

2) Measure the temperature at the room temperature

sensing head.

YES

whether the sensor is

damaged or not?

YES

Sensor is broken. Replace with new sensor

The Outdoor PCB is broken. Replace with new indoor

PCB

46

The malfunction of the compressor’ rotor circuitOutdoor: LED1 flash 18 times

Malfunction unsolved

YES

YES

NO

1. The wiring of compressor is incorrect or the

connection is poor;

2. The compressor is damaged

The IPM might be broken

Within 3 minutes after the machine is supplied

with power and turned on with the remote

controller, the outdoor unit stops shortly after

startup, and the compressor will start up again

10 seconds after the machine stops. The above

process repeats again and again

At the stopped state, LED1 on the outdoor PCB

blinks(1Hz)for 18 times, and after pause of 2

seconds or so, it blinks for the same times

again.

the Malfunctions exist also, The

compressor is damaged replace a new on

47

Yes

Loop of the station detect errorOutdoor: LED1 flash 19 times

Malfunction unsolved

Overcurrent of the compressor Outdoor: LED1 flash 24 timesOvercurrent protection for single-phase of the compressor Outdoor: LED1 flash 25times

Yes

YES

YES

NO

1. The wiring of compressor is incorrect

or the connection is poor;

2. The compressor is damaged

IPM Module is damaged and needs

replacing.

Within 3 minutes after the machine is suppliedwith power and turned on with the remote controller, the compressor couldnot stard up

At frist, the compressor start up ,soon the

compressor stopped with the LED1 on the

outdoor PCB blinks 1Hz for 19 times

the Malfunctions exist also, . The

compressor is damaged replace

new one

Electrify the machine again and turn it on with the

remote controller,If malfunctions are reported before

or upon the compressor being started up,

IPM Module is damaged and needs

replacing.

The compressor is started normally, but

malfunctions are reported after it has run for some

time.Check the power supply. If the voltage is too

low or too high

Repair the power supply

No


- 48-

6. Performance curves diagram 6.1 High drop and long pipe capacity modification curves

9

50

cono

ling

capa

city

(w

51

cono

ling

capa

city

(w

52

3

cono

ling

capa

city

( w

4

cono

ling

capa

city

( w

55

cono

ling

capa

city

(w

56

cono

ling

capa

city

(w


- 57 -

6.3 Air outlet temp.-ambient temp. Curves

HSU-09HC03/R2(DB)

air outlet temp.-ambient temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 18 20 25 32 35 40 43 46

18/12 4.80 4.71 4.47 5.31 5.25 5.30 5.81 6.1818/14 5.26 5.16 4.90 5.83 5.77 5.81 6.37 6.7820/15 9.08 8.97 8.54 9.04 9.64 10.32 10.64 10.9622/16 9.32 9.20 9.05 9.31 9.91 10.60 10.99 11.2925/18 9.57 9.44 9.25 9.58 10.19 10.89 11.34 11.6127/19 11.25 11.10 10.89 11.28 12.10 12.82 13.35 13.6930/22 13.16 13.13 13.06 13.68 14.18 14.78 15.15 15.3332/23 15.07 15.17 15.24 16.07 16.36 16.74 16.95 16.9732/24 15.37 15.47 15.54 16.40 16.69 17.08 17.29 17.31

pow

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onsu

mpt

ion(

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- 58 -

HSU-12HC03/R2(DB)

air outlet temp.-ambient temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 18 20 25 32 35 40 43 46

18/12 4.53 4.46 4.25 5.10 5.06 5.04 5.55 5.99

18/14 4.98 4.91 4.68 5.61 5.57 5.54 6.11 6.59

20/15 8.74 8.65 8.56 8.77 9.38 9.98 10.30 10.70

22/16 8.98 8.88 8.76 9.04 9.65 10.26 10.65 11.02

25/18 9.22 9.11 8.96 9.30 9.92 10.54 10.99 11.34

27/19 10.88 10.75 10.57 10.97 11.71 12.44 12.97 13.38

30/22 12.76 12.75 12.71 13.33 13.85 14.37 14.74 15.00

32/23 14.63 14.75 14.85 15.69 15.99 16.30 16.51 16.61

32/24 14.93 15.05 15.15 16.01 16.32 16.63 16.85 16.95

pow

er c

onsu

mpt

ion(

w

9


- 60 -

HSU-22HC03/R22(DB)po

wer

con

sum

ptio

n(w


- 61-

6.4.1 Cooling discharge pressure curves

HSU-09HC03/R2(DB)

COOLING DISCHARGE PRESSURE TABLE

Outdoor temp. (Humidity 46%) Indoor temp.

DB/WB 16 19 22

15 2053 2255 233625 2078 2210 232130 2451 2623 269435 2764 2890 297140 3075 3156 324745 3429 3600 3641

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E


- 62 -

HSU-12HC03/R2(DB)

COOLING DISCHARGE PRESSURE TABLE


DB/WB 16 19 22

15 2020 2220 2300

25 2040 2170 2230

30 2410 2580 2650

35 2715 2840 2920

40 3020 3100 3190

45 3370 3540 3580

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E

63

COOLING DISCHARGE PRESSURE

4



- 65 -

6.4.2 Cooling suction pressure curves

HSU-09HC03/R2(DB)

COOLING SUCTION PRESSURE TABLE


DB/WB 16 19 22

15 664 752 764 25 693 772 776 30 696 777 775 35 706 780 796 40 744 822 838 45 772 854 869

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E


- 66-

HSU-12HC03/R2(DB)

COOLING SUCTION PRESSURE TABLE


DB/WB 16 19 22

15 620 693 720

25 648 712 731

30 650 717 730

35 660 720 750

40 696 760 790

45 723 790 820

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E

67


8



- 69 -

6.4.3 Heating discharge pressure curves

HSU-09HC03/R2(DB)

HEATING DISCHARGE PRESSURE TABLE


DB/WB 15 20 25

-15 2106 2274 2439

-10 2172 2363 2585

-5 2427 2543 2752

0 2393 2563 2764

5 2552 2733 2858

10 2920 3065 3370

15 3419 3602 3670

20 3060 3433 3603

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E


- 70 -

HSU-12HC03/R2(DB)

HEATING DISCHARGE PRESSURE TABLE


DB/WB 15 20 25

15 1690 1910 2160

10 1855 2080 2335

5 2020 2250 2510

0 2045 2385 2630

5 2200 2520 2750

10 2590 2940 3030

15 3110 3360 3430

20 2840 3160 3370

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E

71

DISCHARGE PRESSUREHEATING

72

HEATING DISCHARGE PRESSURE


- 73 -

6.4.4 Heating suction pressure curves

HSU-09HC03/R2(DB)

HEATING SUCTION PRESSURE TABLE


DB/WB 15 20 25

-15 260 259 262

-10 325 330 340

-5 394 415 420

0 430 470 478

5 470 540 545

10 600 648 682

15 757 757 818

20 719 749 762

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E


-74 -

HSU-12HC03/R2(DB)

HEATING SUCTION PRESSURE TABLE


DB/WB 15 20 25

-15 210 210 220

-10 280 285 295

-5 350 360 370

0 385 430 435

5 420 500 500

10 565 605 640

15 710 710 780

20 680 720 753

Outdoor Temp

DIS

CH

AR

GE

PRES

SUR

E

75

HRATING SUCTION PRESSURE

6

HRATING SUCTION PRESSURE


- 77 -

6.5 Sensible cooling value – temp. curves

HSU-09HC03/R2(DB)

Sensible cooling value - Temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 16 20 25 32 35 40 43 46

18/12 1199 1207 1215 1049 1056 1089 976 889 18/14 1561 1570 1620 1431 1403 1305 1221 1157 20/15 1923 1932 1942 1871 1750 1629 1527 1425 22/16 1883 1895 1907 1856 1725 1571 1466 1417 25/18 1842 1857 1871 1840 1700 1560 1468 1396 27/19 2038 1971 2008 1886 1820 1696 1604 1511 30/22 2246 2135 2276 2056 1958 1860 1731 1696 32/23 2321 2123 2280 2034 1991 1909 1813 1717 32/24 2380 2178 2339 2088 2044 1960 1862 1764


- 78-

HSU-12HC03/R2(DB)

Sensible cooling value - Temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 16 20 25 32 35 40 43 46

18/12 1926 1935 1943 1765 1773 1808 1687 1593

18/14 2315 2290 2378 2175 2145 2040 1950 1881

20/15 2703 2714 2724 2648 2517 2387 2278 2168

22/16 2660 2673 2686 2631 2491 2325 2213 2160

25/18 2617 2632 2648 2615 2464 2314 2215 2138

27/19 2731 2661 2700 2573 2490 2377 2281 2185

30/22 3050 2931 3083 2846 2741 2636 2498 2460

32/23 3130 2918 3087 2822 2776 2689 2585 2482

32/24 3194 2978 3150 2880 2833 2744 2638 2533

9

80


- 81-

6.6 Power consumption-temp. Curves

HSU-09HC03/R2(DB)

Power consumption value - Temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 16 20 25 32 35 40 43 46

18/12 268 276 291 388 515 735 791 846

18/14 342 350 367 474 614 856 917 978

20/15 443 422 410 611 642 777 854 932

22/16 446 424 411 627 650 778 857 937

25/18 448 426 412 642 658 779 860 941

27/19 466 443 430 665 680 804 887 970

30/22 485 462 448 687 703 829 914 999

32/23 491 454 427 646 682 827 924 1021

32/24 510 464 436 657 694 840 938 1036

power consumption

pow

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onsu

mpt

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- 82 -

HSU-12HC03/R2(DB)

Power consumption value - Temperature table Indoor temp. Outdoor temp. (Humidity 46%)

DB/WB 16 20 25 32 35 40 43 46

18/12 800 808 824 929 1066 1304 1364 1424

18/14 880 889 906 1022 1173 1434 1500 1566

20/15 989 966 953 1170 1203 1349 1433 1517

22/16 992 968 954 1187 1212 1350 1436 1522

25/18 994 970 955 1204 1220 1351 1439 1527

27/19 1014 989 974 1228 1245 1378 1468 1558

30/22 1034 1009 994 1253 1270 1406 1497 1589

32/23 1040 1001 971 1208 1247 1403 1508 1613

32/24 1245 1011 981 1220 1259 1417 1523 1629

power consumption

pow

er c

onsu

mpt

ion(

w

83

power consumption

power consumption

pow

erco

nsum

ptio

n(w

84

power consumption

power consumption

pow

erco

nsum

ptio

n(w

85


- 86 -

HSU-18HC03/R2(DB)

NOISE LEVEL 100Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 6000Hz 8000Hz

INDOOR 46.4 43.5 42.3 40.1 39.3 32.8 28.0 0.0 0.0 OUTDOOR 57.1 54.1 52.4 50.7 47.3 41.4 34.9 28.5 26.4

dB(A

)

HSU-22HC03/R2(DB)

NOISE LEVEL 100Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 6000Hz 8000Hz

INDOOR 47.7 44.9 43.3 41.5 40.6 33.1 28.3 0.0 0.0

OUTDOOR 58.0 55.0 53.4 51.6 48.6 42.4 35.9 29.1 27.6

dB(A

)


- 87 -

6.8 Compressor performance curves

HSU-09HC03/R2(DB) COMPRESSOR:DA108X1C-20FZ3

SERIAL NUMBER 1 2 3 4 5 6 7

FREQUENCY 30 50 60 80 90 110 120

INPUT POWER 542 675 820 982 1100 1251 1319

INPUT POWER

HSU-12HC03/R2(DB) COMPRESSOR:DA89X1C-20FZ

INPUT POWER

8


- 89-

7. Wiring diagram


- 90 -

TO IN

DO

OR

UN

IT

MAIN CONTROL BOARD

T25A/250VAC

Remark the dotted parts are optional for different unit.

FUSE1

FUS

E2

HSU-09HC03/R2(DB)


- 91-


- 92 -

TO IN

DO

OR

UN

IT

MAIN CONTROL BOARD

T25A/250VAC

Remark the dotted parts are optional for different unit.

FUSE1

FUS

E2

HSU-12HC03/R2(DB)


- 93-


- 94 -

T25A

/250

VAC

HSU-18HC03/R2(DB)


- 95 -


- 96-

T25A/250VAC

HSU-22HC03/R2(DB)

7

12

34

5

ABCD

65

43

21

D C B A

Title

Num

ber

Revi

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Size B Date:

9-Au

g-20

07Fi

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 161718192021222324252627282930

31

32P0

4/IN

T24

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P06/

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P61

P07/

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X0 X1 VSS

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P35/

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P33/

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P31/

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P30/

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SCK

P50/

PWMP70

P71

P72

P40/

AN0

P41/

AN1

P42/

AN2

P43/

AN3

P00/

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0/A

N4

P01/

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1/A

N5

P02/

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2/A

N6

P03/

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3/A

N7

VCC

FLZ

BUZ1

R2 1K

R1 220

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R4 10K

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PTE6/MOSI19

PTE7/SPSCK 20

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PTA0 26PTA1 27PTA2 28PTA3 29PTA4 30PTA5 31PTA6 32

PTA7

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B0/A

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B1/A

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35PT

B2/A

TD2

36PT

B3/A

TD3

37PT

B4/A

TD4

38PT

B5/A

TD5

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B6/A

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B7/A

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R76

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COM_INCOM_OUT

R6510K-0805±5

R6610K-0805±5

R64

560

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5±5

A0 A1 A2 VSS

SDA

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+5V

U_ho

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GND

TXD

RXD

C27

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1234

CN12

5267

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R791K-0805±5

R8510K-0805±5

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21222324252627282930313233343536373839404142

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electronic expansion valve

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104/

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R39

330

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220

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100

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21222324252627282930313233343536373839404142

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VREF

AVSS

P44/

INT3

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MP4

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T2/S

CMP2

P30/

AN0

P31/

AN1

P32/

AN2

P33/

AN3

P34/

AN4

P42/

INT1

P41/

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P40/

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SRD

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P00/

SIN2

P01/

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2

P03/

SRDY

2P0

2/SC

LK2

P26/

SCLK

P25/

TXD

P24/

RXD

P23

P22

CNVS

SP2

1/XC

INP2

0/XC

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RESE

TXI

NXO

UTVS

S

P04

P05

P06

P07

P10/

(LED

0)P1

1/(L

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P12/

(LED

2)P1

3/(L

ED3)

P14/

(LED

4)P1

5/(L

ED5)

P16/

(LED

6)P1

7/(L

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AC-N

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JZC-

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JZC-

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R3 220K

R2 220K

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U/25

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07

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0

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C48

102

C34

102

R43

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GND

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1

GND 2

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3IC

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321 4567 891312111016

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104

15 14

123456CN

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ELEC-EXPANSIONVALVE

12V

12V A B C D

5V

R36

1K

R34

1K

R37

1K

C42

104

C41

104

C40

104

R32

20K

R31

20K

R30

47K

LED1

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OR

R58

10K

5V1234

5 6 7 8

IC11

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123

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13

Td(white)

12CN

10

Te(white)

5V

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1

GND2

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C34

104

C22

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Mod

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L202

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C204

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C202

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C31

104

12CN

19

TEST 12

CN17

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COOL

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R56

2.2K

C37

104

R35

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R33

20K

C39

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123CN

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SW2

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C44

102

R61

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R62 1

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R485

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R49

20K

R46

20K

R47

5.1K

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1 2 3 4 5 6 7 8 9

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CC

C25

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1234

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00

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D202 M

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00

D102

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C208

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C28

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C27

4.7U

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C29

4.7U

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C30

4.7U

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104

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R27

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2

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5.1K

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R57

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101K

R111

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R112 100K/1W

R106

15

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103

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100

910

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76

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110

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VCC

R107

20K

1 3

R103

4.7K

R63

100/

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T101

E220

34

12CN

23

PC

R53

10K

R60

10K

R52

10K

R50

10K

R51

10K

R59

10K

GND

COM

R55

10K

NO.0010513988

9 Installation

A G

4.Hexagon wrench (5mm)

Plastic cap4X25Screw

Cushion

Drain-elbow

Accessory partsNumber ofarticles

Accessory partsNo.

Remote controller

R-03 dry battery

Mounting plate

Drain hose

Drawing for the installation of indoor and outdoor units

Read this manual before installation

1.Driver2.Hacksaw3.Hole core drill

5.Spanner(14,17,19 and 24 mm)6.Torque wrench(17mm,22mm,24mm)7.Pipe cutter8.Flaring tool

9.Knife10.Nipper 13.Reamer11.Gas leakage detector or soap-and-water solution

12.Measuring tape

Explain sufficiently the operating means to the useraccording to this manual.

Necessary Tools for Installation

Arrangement of piping directions

Rear leftRearrightLeft

BelowRight

mor

e th

an 5

cm

more than 60cm

more than 10cm

more than 15cm

more than 10cm

more than 10cm

more than 10cm

Attention must be paid tothe rising up of drain hose

The marks from to in the figure are the parts numbers.

The distance between the indoor unit and the floor should bemore than 2m.

14.Refrigerant oil

Optional parts for pipingMark Parts name

Non-adhesive tape

Adhesive tape

Saddle(L.S) with screwsConnecting electric cablefor indoor and outdoor

Drain hose

Heating insulating material

Piping hole cover


101

-102-

Liquid pipe

Gas pipe 9.52mm(3/8")

Fixing of outdoor unit

Indoor Unit Selection of Installation Place Outdoor Unit

Fix the unit to concrete or block with bolts( 10mm) and nuts firmly and horizontally.When fitting the unit to wall surface, roof or rooftop, fix a supporter surely with nailsor wires in consideration of earthquake and strong wind.If vibration may affect the house, fix the unit by attaching a vibration-proof mat.

Place, robust not causing vibration, where the body can be supportedsufficiently.Place, not affected by heat or steam generated in the vicinity, whereinlet and outlet of the unit are not disturbed.Place, possible to drain easily, where piping can be connected with theoutdoor unit.Place, where cold air can be spread in a room entirely.Place, nearby a power receptacle, with enough space around. (Referto drawings).Place where the distance of more than lm from televisions, radios,wireless apparatuses and fluorescent lamps can be left.In the case of fixing the remote controller on a wall, place where theindoor unit can receive signals when the fluorescent lamps in the roomare lightened.

Place, which is less affected by rain or direct sunlight and issufficiently ventilated.Place, possible to bear the unit, where vibration and noise arenot increased.Place, where discharged wind and noise do not cause anuisance to the neighbors.Place, where a distance marked is available as illustratedin the above figure.

Power Source

Selection of pipe

Before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponding name plate.Install an exclusive branch circuit of the power.A receptacle shall be set up in a distance where the power cable can be reached. Do not extend the cable by cutting it.

To this unit, both liquid and gas pipes shall be insulatedas they become Iow temperature in operation.Use optional parts for piping set or pipes covered withequivalent insulation material.The thickness of the pipe must be 0.8mm at least.

For 18 22

6.35mm(1/4")

12.7mm(1/2")

HSU-22HC03/R2(DB)

113.5 583 113.5

319.

5

Floor fixing dimensionsof the outdoor unit(Unit:mm)

HSU-18HC03/R2(DB)

Floor fixing dimensionsof the outdoor unit(Unit:mm)

140 500 140

256

HSU-12HC03/R2(DB)HSU-09HC03/R2(DB)

For 09 12

6.35mm(1/4")


-103-

WeightThread

150mm 70mm

Holes for fixing the mounting plate

Fit the level line

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. Find the wall hole location Amm using a measuring tape

2.Making a Hole on the Wall and Fitting the Piping Hole Cover

When the mounting plate is fixed side bar and lintel

Refer to the previous article, " When the mounting plate is first fixed ", for theposition of wall hole.

Fix to side bar and lintel a mounting bar, Which is separately sold, and then fastenthe plate to the fixed mounting bar.

Make a hole of Bmm in diameter,slightly descending to outside the wall.Install piping hole cover and seal itoff with putty after installation

(Section of wall hole) Piping hole pipe

Outdoor side

Thicknessof wall

Indoor side

Wall hole

Bmm

Indoor unit1.Fitting of the Mounting Plate and Positioning of the wall Hole

When the mounting plate is first fixed

145 60

70

Amm Bmm

150

HSU-09HC03/R2(DB)


HSU-22HC03/R2(DB)6.35mm(1/4")


-104-

4.Connecting the indoor/outdoor Electric Cable

Removing the wiring coverRemove terminal cover at right bottom corner of indoorunit, then take off wiring cover by removing its screws.

Fixing the indoor unit bodyHang surely the unit body onto the upper notches of themounting plate. Move the body from side to side to verifyits secure fixing.In order to fix the body onto the mounting plate,hold upthe body aslant from the underside and then put it downperpendicularly.

Other direction pipingCut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe accordingto 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 insulationof connecting part specially.

Left Left-rear pipingIn 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-rearpiping which is marked on heat insulation materials.1. Insert the drain hose into the dent of heat insulation materials of indoor unit.2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then connect them.3. 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

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

Lid for right piping

Lid for under piping pipe

Lid for left piping

Heat insulationmaterial

Drain hose

Piping

Indoor/outdoorelectric cable

Fix with adhesive tape

Drawing of pipeRear piping

Draw pipes and the drain hose, then fasten them with the adhesive tape

3.Installation of the Indoor UnitIndoor unitHaier air conditioner Edition: 1.0-070801

-105-

When connecting the cable after installing the indoor unit1. Insert from outside the room cable into left side of the wall hole, in which the pipe has already existed.2. Pull out the cable on the front side, and connect the cable making a loop.

Insert the cable from the back side of the unit, then pull it out on the front side.Loosen the screws and insert the cable ends fully into terminal block, then tighten the screws.Pull the cable slightly to make sure the cables have been properly inserted and tightened.After the cable connection, never fail to fasten the connected cable with the wiring cover.

LN

{

Indoor unit

Note: When connecting the cable, 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.1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F.2. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V.3. The wiring method should be in line with the local wiring standard.4. After installation, the power plug should be easily reached.5. A breaker should be incorporated into fixed wiring. The breaker should be all-pole switch and the distance between its two contacts should be not less than 3mm.

Indoor unitIndoor unit Outdoor unit

HSU-09HC03/R2(DB)

4G1.5mm2

Power cable: 3G1.5mm2

32

1

45

32

1

Power cable: 3G1.5mm2Indoor unit

4

Outdoor unit

4G1.5mm2

Outdoor unit

Connecting wiring:

Connecting wiring:

Connecting wiring:Connecting wiring:

HSU-22HC03/R2(DB)

HSU-12HC03/R2(DB)

HSU-18HC03/R2(DB)

{

LN


-106-

Apply refrigerant oil on half union and flare nut.

Drain hose

Outdoor unit1.Installation of Outdoor Unit

2.Connection of pipes

Install according to Drawing for the installation of indoor and outdoor units

To bend a pipe, give the roundness as large as possible not to crush the pipeConnecting the pipe of gas side first makes working easier.

Half union Flare nut

Spanner Torque wrench

3.ConnectionUse the same method on indoor unit. Loosenthe screws on terminal block and insert theplugs fully into terminal block, then tighten thescrews.Insert the cable according to terminal numberin the same manner as the indoor unit.

If wiring is not correct, proper operation cannot be carried out and controller may bedamaged.Fix the cable with a clamp.

4.Attaching Drain-Elbow If the drain-elbow is used, please attach it as figure.

Note: Only for heat pump unit.

Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.The standard pipe length is 5m. If it is over 5m, the function of the unit will be affected. If the pipe hasto be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerantmust be conducted by professional air conditioner engineer. Before adding additional refrigerant,perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then chargeadditional refrigerant.

Forced fastening without carefulcentering may damage thethreads and cause a leakage of gas.

Pipe Diameter Fastening torque

42 N.m

Gas side 15.88mm(5/8") 60 N.m

Liquid side 9.52mm(3/8")

Liquid side 6.35mm(1/4") 18N.m

Gas side 12.7mm(1/2") 55N.m


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Outdoor unit6.Purging Method:To use vacuum pump

Detach the service port's cap of 3-way valve , thevalve rod's cap for 2-way valve and 3-way's, connectthe service port into the projection of charge hose(Iow) for gaugemanifold. Then connect the projectionof charge hose (center) for gaugemanifold intovacuum pump.

3-way valve

Gas Side

2-way valve

Service port cap

Gaugemanifold(for R410A)

Vacuum pump(for R410A)

Open

Close

Liquid Side

Open the handle at Iow in gaugemanifold, operatevacuum pump. If the scale-moves of gause (Iow)reach vacuum condition in a moment, check again.

Vacuumize for over 15min. And check the level gaugewhich should read -0.1 MPa (-76 cm Hg) at Iowpressure side. After the completion of vacuumizing,close the handle 'Lo' in gaugemanifold and stop theoperation of the vacuum pump.Check the condition of the scale and hold it for 1-2min.If the scale-moves back in spite of tightening, makeflaring work again, the return to the beginning of .

Open the valve rod for the 2-way valve to an angle ofanticlockwise 90 degrees.After 6 seconds, close the 2-way valve and make theinspection of gas leakage.

No gas leakage?

In case of gas leakage, tightenparts of pipe connection. Ifleakage stops, then proceedsteps.

Detach the charge hose from the service port, open2-way valve and 3-way valve . Turn the valve rodanticlockwise until hitting lightly.

To prevent the gas leakage, turn the service port'scap, the valve rod's cap for 2-way valve and 3-way'sa little more than the point where the torque increasessuddenly.

After attaching the each caps, check the gas leakagearound the caps.

CAUTION:1.If the refrigerant of the air conditioner leaks, it is necessary to discharge all the refrigerant. Vacuumize first, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.

2.Please do not let other cooling medium, except specified one (R410A), or air enter into the cooling circulation system. Otherwise, there will be abnormal high pressure in the system to make it crack and lead to personal injuries.

If it does not stop gas leakage, dischargewhole refrigerants from the service port.After flaring work again and vacuumize,fill up prescribed refrigerant from the gascylinder.

Anti countercurrent joint

7

6

1

2

3

1

3

4

5

6

7

8

Open90

O

Valve rod cap

Valve rod cap7

7

3-way valve

2-way valve

3-way valve

2-way valve

3-way valve

2-way valve

2-way valve

3-way valve

2-way valve

3-way valve

Gas SideLiquid Side

6.35mm(1/4")

12.7mm(1/2")



Tube(for R410A)


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It becomes high midway. The end is immersedin water.

It waves. The gap with the groundis too small

Less than 5cm

There is the bad smellfrom a ditch

1.Power Source Installation

2.Cutting and Flaring Work of Piping

3.On Drainage

Check for Installation and Test Run

Check Items for Test Run

The power source must be exclusively used for air conditioner. (Over I0A)In the case of installing an air conditioner in a moist place, please install anearth leakage breaker.For installation in other places, use a circuit breaker as far as possible.

Pipe cutting is carried out with a pipe cutter and burs must be removed.After inserting the flare nut, flaring work is carried out.

Please install the drain hose so as to be downward slope without fail.Please don't do the drainage as shown below.

Please pour water in the drain pan of the indoor unit, and confirm that drainage iscarried out surely to outdoor.In case that the attached drain hose is in a room, please apply heat insulationto it without fail.

Please kindly explain to our customers how to operate through the instruction manual.

Gas leak from pipe connecting?Are the connecting wirings ofindoor and outdoor firmly insertedto the terminal block?Is the connecting wiring of indoorand outdoor firmly fixed?

Is drainage securely carried out?Is the earth line securelyconnected?Is the indoor unit securely fixed?Is power source voltage abidedby the code?Is there any noise?

Put check mark in boxes

Is the lamp normally lighting?Are cooling and heating (whenin heat pump) performed normally?Is the operation of room temperatureregulator normal?

Flare tooling die

Liquid side

Gas side

Pipe diameter Size A (mm)6.35mm(1/4")9.52mm(3/8")

15.88mm(5/8")

0.8~1.51.0~1.8

1.4~2.2

Liquid side

Correct Incorrect

Lean Damage of flare Crack Partial Too outside

Gas side

12.7mm(1/2") 1.2~2.0


HSU-09,12,18,22HC03/R2(DB) The End


Sincere Forever

Haier Group

Haier Industrial Park, No.1, Haier Road Edited by:chenhuimin

266101, Qingdao, China

E-mail: [email protected] Signed by: zhangguifang

Tel: +86 532 87636957 liujuke taoshengchang

Http://www.haier.com Approved by: zhuzhenxue

Documents

HAIER - HSU-09 12HC Service Man