Frigobox HKEL 261, HKEL 351, HCNL 521, HKEL 261 XR, HKEL 351 XR Service Manual

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SERVICE MANUAL

Air Conditioners

CAUTION

READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE .

MODEL:

IMPORTANT INFORMATION

ƽҏFeatures

ƽҏComfortable: wide-angle airflow

ƽhealth air purifying

ƽquiet operation

ƽҏsuper energy efficient

ƽMain Specification

ƽCooling CapacityΚ 2600/3500/5300W

ƽRated Power/Current(cooling)Κ680/990/1600W/7.8A

ƽEER: 3.8/3.5/3.3W/W

ƽHeating CapacityΚ 3200/3800/6600W

ƽRated Power/Current(heating): 1185/1455/1930W/9.2A

ƽCOP: 2.7/2.6/3.4W/W

ƽAir Volume(Indoor): 500/550m

ƽPower: 1PH 220-230V~ 50 Hz

MODEL: HKEL 261 XR + HKEL 351 XR

IMPORTANT INFORMATION

ƽҏFeatures

ƽҏComfortable: wide-angle airflow

ƽhealth air purifying

ƽquiet operation

ƽҏsuper energy efficient

ƽMain Specification

ƽCooling CapacityΚ 2600/5200W

ƽRated Power/Current(cooling)Κ680/1520W/7.5A

ƽEER: 3.8/3.29W/W

ƽHeating CapacityΚ 3200/6500W

ƽRated Power/Current(heating): 1185/1880W/8.8A

ƽCOP: 2.8/3.2W/W

ƽAir Volume(Indoor): 500m

ƽPower: 1PH 220-230V~ 50 Hz

MODEL: HKEL 261 XR x 2

Before disposing an old air conditioner that goes out of use, please make sure it's inoperative and safe. Unplug the air conditioner in order to avoid the risk of child entrapment.

It must be noticed that air conditioner system contains refrigerants, which require specialized waste disposal. The valuable materials contained in an air conditioner can be recycled .Contact your local waste disposal center for proper disposal of an old air conditioner and contact your local authority or your dealer if you have any question. Please ensure that the pipework of your air conditioner does not get damagedprior to being picked up by the relevant waste disposal center, and contribute to environmental awareness by insisting on an appropriate, anti-pollution method of disposal.

Cautions

Disposal of the old air conditioner

All the packaging materials employed in the package of your new air conditioner may be disposed without any danger to the environment.

The cardboard box may be broken or cut into smaller pieces and given to a waste paper disposal service. The wrapping bag made of polyethylene and the polyethylene foam pads

All these valuable materials may be taken to a waste collecting center and used again after adequate recycling.

Consult your local authorities for the name and address of the waste materials collecting centers and waste paper disposal services nearest to your house.

Disposal of the packaging of your new air conditioner

Before starting the air conditioner, read the information given in the User's Guide carefully. The User's Guide contains very important observations relating to the assembly, operation and maintenance of the air conditioner.

The manufacturer does not accept responsibility for any damages that may arise due to non-observation of the following instruction.

Damaged air conditioners are not to be put into operation. In case of doubt, consult your supplier.

Use of the air conditioner is to be carried out in strict compliance with the relative instructions set forth in the User's Guide.

Installation shall be done by professional people, don't install unit by yourself.

For the purpose of the safety,the air conditioner must be properly grounded in accordance with specifications.

Always remember to unplug the air conditioner before openning inlet grill. Never unplug your air conditioner by pulling on the power cord. Always grip plug firmly and pull straight out from the outlet.

All electrical repairs must be carried out by qualified electricians. Inadequate repairs may result in a major source of danger for the user of the air conditioner.

Safety Instructions and Warnings

Do not damage any parts of the air conditioner that carry refrigerant by piercing or performating the air conditioner's tubes with sharp or pointed items, crushing or twisting any tubes, or scraping the coatings off the surfaces. If the refrigerant spurts out and gets into eyes, it may result in serious eye injuries.

Do not obstruct or cover the ventilation grille of the air conditoner.Do not put fingers or any other things into the inlet/outlet and swing louver.

Do not allow children to play with the air conditioner.In no case should children be allowed to sit on the outdoor unit.

The refrigerating circuit is leak-proof.

1.Applicable ambient temperature range:

Specifications

The machine is adaptive in following situation

10 .The power plug and connecting cable must have acquired the local attestation.

2. If the power supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person.

3. If the fuse of indoor unit on PC board is broken,please change it with the type of T. 3.15A/ 250V. If the fuse of outdoor unit is broken,change it with the type of T.25A/250V

4. The wiring method should be in line with the local wiring standard.

5. After installation, the power plug should be easily reached.

6. The waste battery should be disposed properly.

7. The appliance is not intended for use by young children or infirm persons without supervision.

8. Young children should be supervised to ensure that they do not play with the appliance.

9.Please employ the proper power plug, which fit into the power supply cord.

Cautions

Cooling

Indoor

Maximum:D.B/W.B

Maximum:D.B/W.B Maximum:D.B

Maximum:D.B Maximum:D.B

Minimum:D.B/W.B

Maximum:D.B/W.B Minimum:D.B/W.B

Outdoor

Indoor

Outdoor

Heating

32oC/23oC

24oC/18oC

-7oC/-8oC

43oC/26oC 18oC

27oC 15oC

18oC/14oC

Outdoor

Maximum:D.B/W.B Minimum:D.B/W.B

24oC/18oC

-15oC

(INVERTER)

11.In order to protect the units,please turn off the A/C first, and at least 30 seconds later, cutting off the power.

Series' brief Introduction

1. Comfortable: wide-angle airflow The vertical dual-flap and horizontal wide-angle louvers ensure the cool/warm air reaching every corner of the room.

2. Health air purifying and negative ion function

An air purifying filter with deodorizing and disinfecting function keeps the air clean and users healthy. The negative ion generator can produce the negative ion that make the air fresher and cleaner.

3. Quiet operation

Fan with Random-pitched Blades. Random-pitched blades help to reduce operating noise while maintaining a high airflow rate.

4. Energy efficient

The design of inner-grooved copper tube greatly increases the refrigerant contact area and the efficiency of cooling/heating functions.

5. Convenience

Washable panel and Auto-restart function:

- The grille can be removed easily and washed when necessary.

- All series have auto-restart function after a power failure. At the end of a blackout, all Units automatically restart with the previous settings.

6. Wide variety of functions 24-Hour Timer:

24-Hour Timer allows Users to select the exact time they would like the air conditioner to turn on and turn off.

7. Night-set models When the air conditioner is operating on the timer-off circuit. The preset room temperature gradually rises (going down in Heating) before the Unit's stop. Users can sleep comfortably without sudden change in temperature.

8. "Dry" Program This function automatically reduces the level of humidity while maintaining the preset

indoor temperature.

Indoor unit number

Unit A

Unit B

Unit A + B

Unit A

Unit B

Unit A + B

Unit A

Unit B

Unit A + B

Unit A

Unit B

Unit A + B

COOL

HEAT

Ph-V-Hz

I.U. ~ O.U.

n°

Liquid side mm(inch)

Gas side mm(inch)

g/m

°C

Dimension (W*H*D) A mm 795 265 182 795 265 182 795 265 182

Packing (W*H*D) A mm 865 330 272 865 330 272 865 330 272

Net/Gross weight Kg

dB(A) 42 39 35 42 39 35 42 39 35

dB(A) 34 31 27 34 31 27 34 31 27

Litres/h

m3/h 500 440 410 500 440 410 500 440 410

n°

type

Dimension (W*H*D) mm 815 680 295 815 680 295 815 680 295

Packing (W*H*D) mm 960 760 406 960 760 406 960 760 406

Net/Gross weight Kg

dB(A)

m3/h

2100

Wireless IR

59/66

Outdoor Unit Specifications

2100

+18°C ~ +43°C

-15°C ~ +24°C

7,6/10,6

1,2 * 2

Indoor Unit Specifications

7,6/10,6

1,2 * 2

1,8

5 + 5

Capillary Tube

φ6.35(1/4’) x 2

φ9,52(3/8’) x 2

5/5

9,2

2 + 2

R410A

Refrigerant circuit

8,8

2 + 2

R410A

Max. current

1-220~240V-50HZ

O.U.

3,31

3,42

Electrical data

1,46

1,93

0,99

1,60

3,42

3,80

6,60

5,30

3,80

Inverter

3,50

HCNL 531 XR

HKEL 351 XR

Wireless IR

59/66

+18°C ~ +43°C

-15°C ~ +24°C

1,8

5 + 5

Capillary Tube

φ6.35(1/4’) x 2

9,52(3/8’) x 2

5/5

1-220~240V-50HZ

O.U.

3,46

1,19

1,88

0,68

1,52

3,20

6,50

5,20

3,20

Inverter

2,60

HCNL 531 XR

HKEL 261 XR

ENERGY CLASS

Refrigerant

Drain hose diameter

Indoor unit

Remote Controller (st. equipment)

Temperature range heating

Moisture Removal (Indoor)

Outdoor Air flow

Outdoor Noise level 1 m (MAX)

Outdoor Noise level 2,5 m (MAX)

Outdoor unit

MAX Splitting with Refrigerant Precharge

Indoor Noise level 1 m (Hi/Mi/Lo)

Indoor Noise level 2,5 m (Hi/Mi/Lo)

Indoor air flow (Hi/Mi/Lo)

Fan speeds

Temperature range cooling

Refrigerant Control

Additional Refrigerant Charge

Model Outdoor unit

Cooling Capacity

Model Indoor unit

Heating Capacity kW

Type

Cooling Input kW

Heating Input kW

Power supply

EER

COP

Annual Consumption (500h/Y)

Starting current

Wiring cables i.u./o.u. (without ground)

Splitting level difference (out.-ind./ind.-out.)

Refrigerant Precharge

Refrigerant Pipe

Splitting distance indoor/outdoor

HCNL 531 XR

HKEL 261 XR

HKEL 351 XR

Inverter

2,60

3,50

5,30

3,20

3,80

6,60

0,68

0,99

1,60

1,19

1,46

1,93

3,31

3,42

1-220~240V-50HZ

O.U.

9,2

2 + 2

R410A

φ6.35(1/4’) x 2

1,2 * 2

φ9,52(3/8’) x 2

5/5

1,8

2100

Wireless IR

59/66

760 800 800

5 + 5

Capillary Tube

+18°C ~ +43°C

-15°C ~ +24°C

7,6/10,6

Number Na

me Refer No. Description Quality

Failure

Rate(%

)

Remark

remote

controller

0010403793 None 1 0.2

2 battery 001A4600001 None 2 0.1

mounting

plate

0010101275

Fix mounting plate

according to

installation position

and pip

e direction

4 drain pipe 001A0900011

Choose the place

that can drain

water and connect

pipe easily

1 0.1

connectin

pipe

----

The maxi

mal

length of the

conne

cting pipe is

15m,the ma

ximal

ight between

indoor unit and

outdoor unit is 5m

1 0.2

connecting

wire

----

The conecting

methods include

ring terminal and

direct

terminal

.Ring

terminal

connecting

method:Unscrew

the

screws ,and

put it through the

ring of connecting

line ends,then

connect it into the

terminal block. Direct terminal

connecting

method:unscrew

the screws,then

fully i

nsert the

cable ends into.

0.2 *

7 manual 001A7265614 Operation 1 0

HKEL 261 XR x 2

Number Na

me Refer No. Description Quality

Failure

Rate(%

)

Remark

remote

controller

0010403793 None 1 0.2

2 battery 001A4600001 None 2 0.1

mounting

plate

0010101275

Fix mounting plate

according to

installation position

and pip

e direction

4 drain pipe 001A0900011

Choose the place

that can drain

water and connect

pipe easily

1 0.1

connectin

pipe

----

The maxi

mal

length of the

conne

cting pipe is

15m,the ma

ximal

ight between

indoor unit and

outdoor unit is 5m

1 0.2

connecting

wire

----

The conecting

methods include

ring terminal and

direct

terminal

.Ring

terminal

connecting

method:Unscrew

the

screws ,and

put it through the

ring of connecting

line ends,then

connect it into the

terminal block. Direct terminal

connecting

method:unscrew

the screws,then

fully i

nsert the

cable ends into.

0.2 *

7 manual 001A7265614 Operation 1 0

HKEL 261 XR + HKEL 351 XR

Description and function of main components and accessories

795

265

182

Net dimensions for outdoor unit

583 815

869

680

319.5 352

295

Net dimensions for indoor unit

KNOCK-DOWN DRAWINGS

INDOOR UNIT

No. in

exploded

view

Spare parts

number

Spare parts description

in english

Qty

1 001A1232082 Inlet grille assy. 1 2 001A2400060 Air filter 2 3 0010

101525

Fron

t panel assy.

1 4 001A1232077 Flap 1 5 001A0900064 Drain pan assy. 1 6 001A0400055 Evaporator assy. 1 7 001A0300005 Bearing 1 8 0010202415 Cross flow fan 1 9 001A0100206 Frame assy. 1

10 001A1301216 Mounting plate 1

001A3000052 Fan motor 1

001A1431372 Motor cover 1 12 001A3800032 Transformer 1 13 0010403740 PCB 1 14 0010403686 Te rminal block 1 15 001A0600287 Receiver board 1 16 001A09000

Drain hose 1

17 001A30

00072

Swing

motor

18 0010403793 Remote controller

1 19 001A1434039 Drain tube 1 20 001A2400059 Air purifying

2 21 001A3900059 Sensor 1 22 0010400724 Negative ion generator 1

No. in

exploded

view

Spare parts

number

Spare parts description

in english

Qty

1 001A1232082 Inlet grille assy. 1 2 001A2400060 Air filter 2 3 0010101525 Front panel assy. 1 4 001A1232077 Flap 1 5 00

1A0900064

Dra

in pan assy.

1 6 001A0400055 Evaporator assy. 1 7 001A0300005 Bearing 1 8 0010202415 Cross flow fan 1 9 001A0100206 Frame assy. 1

10 001A1301216 Mounting plate 1

001A3000052 Fan motor 1

001A1431372 Motor cover 1 12 001A3800032 Transformer 1 13 0010403741 PCB 1 14 0010403686 Terminal block 1 15 001A0600287 Receiver board 1 16 001A0900011 Drain hose 1 17 001A3000072 Swing motor 1 18 0010403793 Remote controller

1 19 001A1434039 Drain tube 1 20 001A2400059 Air purifying

2 21 001A3900059 Sensor 1 22 0010400724 Negative ion generator 1

HKEL 261 XR

HKEL 351 XR

No. in

explode

d view

Spare parts number

Spare parts description

in english

Qty

010203945

Front guard 1

001A14361

Handle 1

001A1101039

Left side panel 1

001A0100124

To p pane

0010101

525

Fro

nt panel

01A2331024

Axial fan 1

001A30007

Motor 1

001A1301133

Motor s

upport

0010101524

Right side panel 1

0010706971

Compressor 1

0010707166

Heat excha

nger

0010707160

Pipe assy. 1

0010703

520

4-way valve Assy 1

0010806619

Electric box Assy 1

001A1301304

Split board 1

0010806754

Bottom plate assy 1

001A1301127A

Stop valve support 1

0010705

987

Stop valve 2

0010705988

Stop valve 2

001A17621544

OUTDOOR UNIT

HCNL 531 XR

ELECTRICAL CONTROL

catalog

1. application range

2. operation modes

3. strength operation

4. mute operation

5. air refreshing

6. timing operation

7. dormant mode

8. urgent switch input

9. low load protection control

10.high load protection control

11.low heating processing

12.indoor and outdoor communication

13.remote control signal codes

14.abnormal operation of indoor system

15.EEPROM control

16.malfunction list resume (to 0010403739/3740)

17.abnormal conditions confirmation

18.special functions

19.airflow conducing board control

20.other additional functions appindex

1. Application range

conditionic and its expanded types. Note: Close S2 and open S1 before connecting to the power source. Enter the time-cut mode after the connection. Close S1 and open S2 before connecting to the power source. Enter the time-cut mo de after the connection.

2. Operation modes.

1. Full-automatic approach.(

After the air conditonic is switched on, when the system is at the automa tic option, the appropriate operation mode will be chosen according to the difference between the set temperature and the indoor temperature . In the following option conditions, Tr stands fo r indoor temperature and Ts stands for set temperature.

The system will choose the operation mode according to the following conditions when entering into the automatic operation option for the first time.

Tr≥Ts-3℃ Choose the cooling mode

Tr＜Ts-3℃ Choose the warming mode

Under the automatic option, the system will switch between the cooling and warming modes according to the change of the indoor temperature. If the air conditionic is under the cooling mode, when the set temperature for stopping th e compressor is reached, the compre ssor will be stopped. The indoor temperature will be tested aga in 15 minut es after the s top of the co mpressor . At the moment, if the tested temperat ure is un der the Tr＜Ts-3℃ condition, the system will be switched into the

warming mode. If not, the system will remain in the cooling mode. If the air conditionic is under the warming mode,

when the set temperature for stopping th e compressor is reached, the compre ssor will be stopped. The indoor temperature will be tested aga in 15 minut es after the s top of the co mpressor . At the moment, if the tested temper ature is under the Tr（compensation value not included）≥Ts+3℃ condition,

the system will be switched into the cooling mode. If not, the system will remain in the warming mode. If the system is stopped by a change on the set temperature, the decision of mode switching will be made 3 minutes later.

When the system is switched to the automatic option from other opti ons, if the operation conditions changes ( new decision should be made before new operation), the system will be stopped for 3 minutes and then enter the relative mode according to the inlet air temperat ure.

This mode has the timing fu nction an d dorman t function. Under the cooling m ode, the c ooling dormant function is stimulated while the dormant heating function takes effects under the heating mode.

This mode has the strength/ mute function. Under the cooling mode, the cooling st rength function i s stimulated while the strength heating function takes effects under the heating mode.

The airflow speed control can choose the low, medium, high or automatic option and send the airspeed signal to the outdoor system.

Automatic lowered airflow direction board. (the same with the cooling or he ating mode.)

2． Cooling operation mode * Temperature control range: 16℃---30℃ * Temperature difference: ±1℃

* Control features: When Tr（inpu t airflow）>Ts（set temperature）℃, the compressor will be opened,the indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system. When Tr（input airflow）< Ts（set temperature）℃, the compressor will be opened,the indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system. The system will keep the original status if Tr= Ts.

* Airflow speed control: (temperature difference 1℃)

Automatic: When Tr>=Ts+3℃, hi gh speed. When Ts+1℃=<Tr<Ts+3℃, medium speed When Tr<Ts+1℃, low speed When the sensor is off, low speed

When the airflow speed has no delay from the high to low switching, the speed should be delayed for 3 minutes (remain at high speed for 3 minutes.) before the next switch.

Manul: When the system is operating, you can set the high, medium or low speed manually. ( When

the sensor is on or off, the system will chan ge the speed 2 seconds after rec eiving the signal.)

*Airgate location control: the loca tion for the airga te can be set accordin g to your needs. *Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or

demoisture). When the compress or works continu ously for 5 minute s (adaptable in EE PROM) and the

temperature of the indoor coils has been below zero centigrade for 10 seconds, the compressor will be stopped and the malfunction will be recorded in the malfunction list. The indoor system will continue to run. When the temperat ure of the indoor coil is raised to 7℃, the comp ressor will be restarted again (the prerequirement of 3 minutes’ delay should be satisfied.)

* timing system on/off function. * Dormant control function.

* Under the cooling mode, the outdoor sy stem will proces s the frequency conversing of the compressor according to t he set temperature, indoor temperat ure and the indoor heat exchange temperature. (refer to the specification for the outdoor system.)

3. Demoisture mode.

* temperature control range: 16---30 ℃

* temperature difference: ±1℃

Control feature: send the demoisture signal to the outdoor system.

When Tr>Ts+2℃, the compressor will be turned on, the indoor fan will operate at the set speed.

When Tr is between the Ts and Ts+2 ℃, the outdoor system will operate at the high demoisture frequency for 10 minutes and then at the low demoisture mode for six minutes . The indoor fan will operate at low speed.

When Tr< Ts, the outsystem will be stopped , the indoor fan will be stoppe d for 3 minutes and then turned to the low speed option.

All the frequency converses have a ±1℃ difference.

* Wind speed control: Automatic:

When Tr >= Ts+ 5℃, high speed. When Ts+3℃≤Tr< Ts+5℃, medium speed. When Ts+2℃≤Tr< Ts+3℃, low spee d. When Tr<Ts+2℃, light speed. If the outdoor fan stopped, the indoor fan will be paused for 3 minutes. If the outdoor fan stopped for more than 3 minutes and the outdoor system still operates, the system will be changed into light speed mode. When the airflow speed has no del ay from the high to lo w switc hing, the speed should be dela yed for 3 minutes (remain at high speed for 3 minutes.) before the next switch. Manual: When the sensor is off or Tr< Ts+3℃, the manual operation can not be made. (obligatory automatic operation.)

*Airgate location control: the loca tion for the airga te can be set accordin g to your needs.

*Defrosting function: preventing the frosting on the indoor heat exchanger (when cooling or demoisture). When the compress or works continu ously for 5 minute s (adaptable in EE PROM) and the temperature of the indoor coils has been below zero centigrade for 10 seconds, the compressor will be stopped and the malfunction will be recorded in the malfunction list. The indoor system will continue to run. When the temperat ure of the indoor coil is raised to 7℃, the comp ressor will be restarted again (the prerequirement of 3 minutes’ delay should be satisfied.) * coil protection (synchronic overheating protection) are installed for the four directions latch malfunctions when demoisturing.

* timing system on/off function.

* Dormant control function.

4. Heating operation mode.

* temperature control range: 16---30℃

* temperature difference: ±1℃

* control feature: send the heating signals to the outdoor system.

If Ts≥Tr＋1℃, the outdoor compressor is turned on.

If Tr≥ Ts＋1℃, the outdoor system is turned off. However, with the previous 5 minutes after the starting-up, the system ca n’t be stopped even if the changed Tr reached the Ts. The system can be turned off after these 5 minutes.

If the set temperature is changed to the room temperature, the system will be stopped at once.

If the system is under the heating or automatic heating mode, the set temperature will be added a compensated value, which usually makes the set temperature on the thermostat have 3 degrees’ compensation.

*Indoor fan control manual control: You can choose high, medium, low and automatic speed control. Automatic: When Tr<Ts, high speed. When Ts=<Tr=<Ts+2℃, medium speed. When Tr> Ts+2℃, low speed.

When the airflow speed has no del ay from the high to lo w switc hing, the speed should be dela yed for 3 minutes (remain at high speed for 3 minutes.) before the next switch. *Airgate location control: the location for the airgate can be set according to your needs.

. Coldair proof operation

1. when the indoor temperature is below 23 centigrades, the indoor fan will be off, when the temperature is above 23 centigrades, the indoor fan will run at a slight speed.

2. If the coil temperature is above 38 centigrade, the fan will run at the set speed.

3. If the coil temperatur e doesn’t reach 38 centigrade 4 minutes after the start-up of the slight airflow, the fan will run at the set speed. (Whether the coil temperature falls or not after the starting up of the slight airflo w, the set speed is stimulated if the tem perature doesn’t surpass 38 centigrade.)

4. When the compressor works, the i ndoor fan will run at the set speed when the spe ed of the slight airflow reached the set speed.

Set airflow 38℃ Slight airflow 23℃

* Residue heat sending. The indoor fan will send the residue heat at a low speed for 20 seconds. If the Tc(indoor coil)< 20 centigrade, the indoor fan will be stopped at once. * If the system is stopped when the set temperat ure is reached, th e indoor fan will run at a slight speed within the 3 minute’s waiting mode until Tc< 20 centigrade. * If the indoor system is turned off, the air direction board will be closed after the stop of the indoor fan. (the indoor fan will be stopped immediately if there is a malfunction.) * Defrosting: After receiving the defrosting signal of the outdoor system, the indoor fan will be stopped, and the malfunctions of the indoor coils and the indoor sensors will be neglected. In the defrosting period, the default indoor temperature is 10 centigrades, the coil temperature will be 20 centigrades. With in the defrosting period and the proceeding 2 minutes, the temperature sensor will not test the abnormalities(including the indoor coil and the indoor temperature sensor) and the cold air proof operation will be stimulated after these two minutes. * Overload protection syst em can protect the coil from overheating. The outdoo r system will be stopped if the 10s continuous tests show that the indoor temperature is above 65 centigrades (accomdable in EEPROM), a nd the ove rheating ma lfunction is to be rep orted. When the indoor temperature is below 42 centigrades(accomdable in EEPROM) and the system has been stopped for more than 3 minutes, it means that the malfunction has been cleared and the outdoor system

will be started again. * Under the cooling mode, the outdoor sy stem wi ll proces s the fre quen cy conver sing of the compressor according to the set temperature, indoor temperature a nd the indoor heat exchange temperature. (refer to the specification for the outdoor system.)

5. Low heating processing. When the four direction latch switch doesn’t work or the compressor restarts (despite the defrosting operation and the proce eding 3 minutes) at the heat ing mode, if the heat exchang er temperature is below "THHOTLTH"（-4.5℃）for "TMHOTLTH"（90seconds）, the compressor will be paused for 3 minutes. The indoor temperature will be restored at " THHOTLTH "（-4.5℃）.

3. Strength/ mute operation * When the system operates, if there is onl y a strength setting and no mute settings, the indoor fan will have an airflow speed processing and the outdoor fan will have a stre ngth processing. But if the system has both the strength settin g and the mute set ting, only th e indoor fan will ha ve the speed processing accordingly and the outdoor fan will not operate any process. If there is only a mute setting and no strength settings, the indoor fan will have an airflow strength processing and the outdoor fan will have a speed processing. * The realization of indoor fan functions: The indoor system sends the strength or mute signal to the outdoor system. The indoor fan with a set strength will operate at the set str ength speed and the indoor fan set into a mute mode will send slight airflow.

*1. strength operation a. the system enters the mode after receiving the ‘strength signal’.

Send strength operation signal to the outdoor system. Strength operation for 15 minutes. The strength operation stops or finishes after the 15 minutes. The mode change finishes the strength operation. Entering ‘mute’, you can have normal operation or signal control such as timing to finish the strength operation. When the system is at the automatic option with the strength/ mute function, if the system enters the cooling mode, the cooling strength/ mute function will be offered; if the system enters the heating mode, then the heating strength/ mute function will be offered; if the system enters the airflow mode, there will be no strength/ mute function.

b. strength heating: temperature accommodating function. The airflow is offered by strength heating (adaptable in the EEPROM) In the defrosting mode, the outdoor fan doesn’t receive strength operation signals. 15 minutes after the stren gth opera tion, the compressor can’t be turned off wi thin 10 minutes . (except the malfunctions and the off singals) c. strength cooling: temperature accommodating function. The airflow is offered by strength cooling (adaptable in the EEPROM) The low load protection can’t be stimulated within the 3 minutes after the start up of the compressor. d. Demoisture, strengthless airflow operation.

*2. Mute operation a. the system enters the mode after receiving the ‘mute signal’.

b. send the mute signal to the outdoor system. c. mute heating: When the compressor operates, the airflow speed is mute speed. EEPROM is adaptable.

*After the compressor is turned off, the airflow speed can be controlled according to the following conditions.

1. If the system is turned off with a remote control or under an urgent condition, the fan speed will be changed

into light speed within 20 seconds. Then, the fan will stop 20 seconds later. The airflow direction board will be closed after the 20 seconds’slight airflow.

2. If the system is turned off by a malfunction, the fan will be stopped at once.

3. If the sensor is turned off, the fan will operate at a slight speed.

4. Mute cooling. Mute cooling: the airflow speed will be mute speed. EEPROM is adaptable.

5. Mute operation can not work under the demoisturing and airflow-sending operation.

4. Air refreshing After receiving the signal from the remote control, the power indicator turned to yellow green ( the indicator is oringinally red). If the fan operates, the negative ion generator operates to realize the negative sending function.

If the indoor fan stops, the negative ion generator is turned off. When the negative ion generator is turned off, if the air refreshing system is turned on, the negative ion generator will be turned on when the fan operates.

5. Timing. You can set 24 hours’ on/off timing accordingly. After the setting, the timing indicator will be lightened. Also, the light will be turning off after the timing is finished. The followings are several timing methods.

1.1 system /on timing: The timing indicator will be ligh tened and the indoo r system is under the waiting mode. The light will be turned off when the timing is finished and the rest of the system will operate under a normal condition. The timing starts since the last reception of the timing singal. You can have the dormacy setting under the timing mode, the order of your settings will be operated according to the timing settings.

1.2 system /off timing: When the system is turned on, the timing indicator is lightened, the rest of the system will operated under a normal condition. When set time comes, the indicator light will be turned off and the system will be turned off. If you have set the dormant functions, the order of your settings will be operated according to the timing settings.

1.3 system /on and off timing: The settings will be completed according to the orders.

6. Dormant operation *1. According to the option, after you have set the domant setting, the timing indicator will be lightened. *2. Under the cooling/ demoisture operation, after the setting of the dormant operation, the set temperature will be raised for 1 centigrade after 1 hour’s operation and will be raised for 1 centigrade 1 hour later. The system will keep this status for 6 hours and then close. *3. Under the heating mode, after the setting of the dormant operation, the et temperature will fall 2 centigrades after 1 hour’s operation and will fall 2 centigrades 1 hours later. 3 hours after the preceding operations, the set temperature will be raised for 1 centigrade and the system will keep this status for 3 hours and then close down. *4. Indoor fan control under the dormant operation. If the indoor fan is at the high speed before the dormant operation setting, the speed will be turned to medium after the setting. If the fan is at the medium speed before the dormant setting, the speed will be turned to low after the setting. If the fan is at the low speed before the dormant setting, the speed will not change.

7. Urgent on/off input *1. Press the urgency button the buzzer will ring. The system will enter the automatic mode if you don’t press the button for more than 5 seconds. *2. If you press the urgency button for more than 5 seconds, the buzzer will ring twice. At the time, if you loose the button, the system will enter test operation function. The indicated frequency of the test operation function is 58Hz and the airflow speed is high. The test operation will be finished after 30 minutes and the system will be closed. During the test period, the system will quit the test operation after receiving the signal from the remote control. The low load protection can’t be stimulated her e. *3. If you press the urgency button for more than 10 seconds, the buzzer will ring for 3 times. If you loose the button, the malfunction list will be presented, on which the last system malfunction is to be revealed. The malfunction signal can only be eliminated after the the system has received the indoor or outdoor malfunction correcting singals. The malfunction list doesn’t receive any remote control signals except the stop signal. If there is no malfunction, no

signals are tobe revealed, but the buzzer still rings. *4. If you press the urgency button for more than 15 seconds, the buzzer will ring only once. The system will keep the present status and can receive on/off signals. *5. When you press the urgency button. Within 15 seconds, no remote signals can be received. After 15 seconds, just like the remote signal reception mode under normal conditions, the normal remote signals can be received.

opposite operation modes exist of indoor system

When the outdoor system operates, if the indoor system operation differs from the outdoor system, the abnormal operation malfunction will be reported. 10s after the report, the indoor system will be closed.

Outdoor system mode Indoor system mode conflicts cooling heating yes cooling cooling no cooling airflow no heating heating no heating airflow yes heating cooling yes

9. EEPROM control

When outdoor system is connected to the power circuit, if the EEPROM value differs from the tested value, then the EEPROM is abnormal. When the indoor system receives EEPROM the abnormal reading and writing signals from the outdoor system, the abnormality of the outdoor EEPROM is confirmed. At the time, the control and urgency signals can not be received. The problem can be solved through switching off the power supply.

10. Malfunction list resume. Nothing is presented if there is no code list. For the malfunction modes, refer to the urgency button specification. The remote control only receives the sigals for stop. According to the signals, the malfunction resume presentation finishes. The resume restores after the power supply restores.

11. abnormality confirmation approaches.

11.1 indoor temperature sensor abnormality: under the operation, the normal temperature ranges from 126 degree to

-31 degree. When the temperature goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the system will automatically resume.

11.2 indoor heat interaction sensor abnormality: under the operation, the normal temperature ranges fro m 126 degree to -31 degree. When the temperature goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the system will automatically resume.

11.3 indoor fanmotor malfunction. When the indoor fan signal is output, if there is no feedback within 2 minutes, the abnormality can be confirmed.

11.4 Outdoor malfunction processing. When the outdoor malfunction signal is sent to the indoor system asking for malfunction report, the operation LED

light will report the malfunctions by flashing, the times of flashing stands for the outdoor malfunction codes. If there is no malfunctions within the outdoor system, the indoor system will continue to run.

11.5 transmission abnormality. If the indoor system can’t receive the outdoor system for 5 minutes, the communication abnormality can be confirmed and the outdoor system will be stopped. 170 seconds later, the malfunction can be cleared, 3 minutes after the turning down of the system can it be started again and the test and inspection is to be restrated.

12. Special functions *1.Single indoor system operation

* Enter condition: Under the no-electricity cut compensation condition, press the dormant keys

for 6 times within 7 seconds, the system will feedback with 6 rings.

* After the system enters the separate indoor system operation mode, the indoor system will operate according to the set mode and neglect the communication signals of the outdoor system. However, it has to send signals to the outdoor system.

* Quitting condition: This mode can be quitted after receiving the quitting signal from the remote control or urgency system. The indoor system thus can quit the single operation mode.

* Under the single indoor fan operation, the preset outdoor status is as the follows. The compressor frequency is 58 hz, there is no error or non-defrosting signals, and the sensors are at the normal temperature.

* Malfunction happens on the two sensor of the indoor system. The indoor heat interaction temperature is fixed at 47 centigrade and the ambient temperature is fixed at 25 centigrade.

* When the single indoor system operation is set, after receiving the signals from the remote control, all kinds of output control (such as negative ion) can be set normally and cancelled. The screen board will show all kinds of set conditions ( the setting and canceling of negative ions, the setting and canceling of the timing functions, etc.), among which the LED will be lightened after entering the single indoor system.

2. Power cut compensation.

* Entering condition: Press dormant button 10 times within 7 second, the buzzer will ring 4 times and the present system status will be stored into the EEPROM of the indoor system. * After entering the power cut compensation mode, the processing of the indoor system should be as the followings: Remote control urgency singal: operate according to the remote control and the urgent conditions, the present status will be stored into the EEPROM of the indoor system. * Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring twice.

3. Fixed frequency operation. ** 1. Fixed cooling: a. under any condition: high speed cooling, set 16℃, press temperature ‘-‘ key and the set key at the same time,the bu zzer will ring 2 times and the system will enter the fixed frequency operation.

b. The proceeding programs are as the follows:

Entering the fixed frequency operation, the fixed indication is presented in the communication.

c. Quitting condition: The f ixed frequency cooling c an be quitted after rece iving the remote

signal, and the system will enter the remote setting status. *2. Medium cooling: under any condition : a. high spe ed cooling, set 16℃, press the dormant key 4 times within 7 seconds and the buzzer will ring 5 times. The system then enters the medium mode. b. The proceeding programs are as the follows:

Entering the medium cooling operation, the medium power is presented in the communication. c. Quitting condition: The m edium co oling ca n be quitte d after re ceiving the remo te signal, a nd the system will enter the remote setting status.

*3. minimal cooling: a. G code (the remote controller) entering condition: press the dormant key 8 times within 7 seconds and the buzzer will ring 7 times. The system then enters the minimal mode. b. The proceeding programs are as the follows: Entering the minimal cooling operation, the minimal cooling is presented in the communication. c. Quitting condition: The minimal cooling can be quitted after receiv ing the remote signal, and the system will enter the remote setting status.

** 1. Fixed heating: a. under any condition: high speed heating, set 30℃, press temperature ‘+‘ key and the set key at the same t ime and the buzzer will rin g 2 times.The system will e nter the fixed frequency operation. b. The proceeding programs are as the follows: Entering the fixed frequency operation, the fixed indication is presented in the communication. c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal, and the system will enter the remote setting status. *2. Medium heating: under any condition : a. high spe ed heating, set 30℃, press the dormant key 4 times within 7 seconds and the buzzer will ring 5 times. The system then enters the medium mode. b. The proceeding programs are as the follows: Entering the medium heating operation, the medium power is presented in the communication. c. Quitting condition: The m edium he ating ca n be quitte d after re ceiving the remo te signal, a nd the system will enter the remote setting status. *3. minimal heating: a. G code(the remote controller) entering condition: press the dormant key 8 times within 7 seconds and the buzzer will ring 7 times. The system then enters the minimal mode. b. The proceeding programs are as the follows: Entering the minimal heating operation, the minimal heating is presented in the communication. c. Quitting condition: The minimal heating can be quitted after receiv ing the remote signal, and the system will enter the remote setting status.

13. Other additional functions

*1. Self test function, time-reducing function. 1-1 close the code switch S1 and open switch S2 before connecting to the power circuit and the indoor system enters the time-reducing function, one minute is reduced as one second. 1-2 close the code switch S2 and open switch S1 before connecting to the power circuit and the indoor system enters the self-test program 3 seconds later. The airflow direction board is closed. * After the entering into the self test program, the power light will be lighted for one second, and then the clearing light will be lighted for 1 second. Then, the timing light will be lighted for one second. At last, the dormant light will be lighted for 1 second. Then the system will be in the off status. * The indoor system will keep the communication with the outdoor ever since the flash of the self test light. * The fan motor operates at a medium speed during the self testing.

*2. The display function

Three lights display. ( one of the lights is a double colour light, the light board is 287 light board.)

z Receiving the start up signal, the power light will be lighted, red colour. z Indoor system requires start up, the operation light will be lighted. (The indoor system can only judge the indoor

condition, not the operation status of the outdoor system.)

z When setting the timing option and the dormant option, the timing light will be lighted; when setting health

option, the power light will turn to yellow green.

z Under the start up malfunction mode, if it is an indoor malfunction, the timing light will flash; if it is an outdoor

malfunction, the operation light will flash. Please refer to the malfunction code list.

*3、airflow speed setting communication.

When the indoor airflow speed changes, the speed option will be sent to the outdoor system. There are 5 options in all: strong, high, medium, low, slight.

14. Appendix

Appendix 1 : The malfunction code for the indoor and outdoor system interaction

malfunctions.

Indoor system malfunction codes

malfunction codes

malfunction

1 Indoor temperature sensor system break

2 Indoor heat interaction temperature

sensor system break 3 Frosting under the cooling mode

4 Overheating under the heating mode

5 Inefficient communication between indoor

and outdoor system 6 Momental power cut 7 non

8 No feedback from the indoor fan（PG or DC

motor only） 12 Malfunction in reading or writing E2ROM

Outdoor malfunction codes

Malfunction

codes

Malfunction

1 Ambient sensors circuit break

Hot temperature exchanger sensor circuit breaks or shorts.

Outlet temperature sensor circuit breaks or shorts.

4 DC compressor feedback. 5

Outdoor system communication

malfunction. 6 Current overcharge. 7 No load. 8 Overloaded/ under loaded voltage. 9 DC compressor failure.

10 Refrigerating overload 11 Defrosting mode 12 IPM protection 13 E2 ROM reading failure 14 E2 ROM coining failure 15 Non 16 NO AC power. 17 Aspiration sensor circuit breaks 19 DC compressor speed control failure 21 Coil 1 sensor circuit breaks or shorts 22 Coil 2 sensor circuit breaks or shorts 31 System A communication malfunction 32 System B communication malfunction

OUTDOOR SYSTEM FUNCTIONS

The outdoor system will decide the operation mode based on the principle of ‘first order preferred’ according to the startup signals of the two indoor systems.

a) cooling: Under the cooling operation, the four direction latch will not be closed.

The outdoor fan will operate at the cooling mode. The compressor will operate under

the cooling frequency. b) heating: Under the heating operation, the four direction latch will be closed. The outdoor fan will operate at the heating mode. The compressor will operate under the heating frequency. When frosts appear at the outdoor sys tem, the system will e nter into the defrosting operation automatically. After the completion of the defrosting, the system will be resumed.

1. heat defrosting operation

1.1 Under the heating operation, wh en the indoor heat interaction temperatu re is below the ambient temperature and the heat inter action temperature is below zero centigrade, the frosts will appear on the heat exchanger. When the aggregated frost affects the heat interaction, the defrosting operation will begin.

1.2 frost confirmation condition. When either of the following condition appears, the system will enter the defrosting mode. b) continuous operation for 47 minutes and Ta≥5℃, if Te

≤-3℃ for 2 minutes. b) continuous operation for 47 minutes and Ta＜5℃, if Te≤-7℃ for 2 minutes. c) continuous operation for 47 minutes and Ta＜-3℃, if Te≤-9℃ for 2 minutes. d) If Ta≤-3℃ and the compressor worked for 3 hours without a defrosting operation, the

system will process the defrosting for one time.

1.2.1 Defrosting process: After entering the defrosting operation, the compressor and the fan will be stopped. The four direction latch will be opened 30 seconds later. And the compressor will restart 10 seconds later. The system begins the defrosting operation .

1.2.5 defrosting quitting condition: i) Time control: Defrosting time lasts 10 (EEPROM) minutes, the defrosting operation ends. ii) Heat interaction control: When Te≥14℃(

EEPROM

), the defrosting operation ends.

1.2.6 Defrosting quitting process After the completion of the defrosting, the compressor stops. 50 seconds later, the four direction latch changes direction. 10 seconds later, the compressor will start and the original heating operation resumes.

1.2.7 After the entering into the frosting mode, the compres sor will operat e at least for 1 minutes before stopping th e defrosting. (Th e timing starts as the four direction latch starts.)

1.3 Outdoor main relay control The outdoor main relay closure will be delayed for 2 seconds after connecting to the circuit.

1.4 Outdoor airflow control

1.4.1 airflow control at the cooling mode. After the compressor is turned on fo r 5 seconds, the outdoor fan will start at a high sp eed. 10 seconds later, the speed w ill be controlled according to the outdoo r ambient temperature. If the outdoor has only two option, M operates on H and L operates on L.

When the outdoor speed is M or L, the speed will change according to the heat interaction temperature. The status will be checked every minute. Ta>28℃，high speed 26℃<Ta<28℃ ，high/ low speed Ta<26℃： Te≧40℃，high speed

37℃≦Te<40℃，high/ medium speed 35℃≦Te ，medium speed 30℃≦Te<35℃，medium/ low speed Te<30℃，low speed

1.4.2 the speed control under the heating mode The outdoor speed varies according to the outdoor ambient temperature. M operates on H under the two option mode.

Ta>24℃，low speed

24℃>Ta>20℃，low speed/ medium speed

Ta>16℃，medium speed

16℃>Ta>10℃，medium/high speed

Ta<10℃，high speed

1.5 Outdoor four direction control Under the cooling mode, the outdoor four direction latch is not closed. Under the heating mode, the latch can be closed. When the heat ing compressor stops, the four direction latch will be closed 100 seconds later. The latch control under the defrosting operation has been discussed in the ‘defrosting operation’.

1.7 compressor frequency control

1.7.1 fixed test frequency To fixing test frequency operation of the outdoor system.

the indoor system can be controlled manually. (refe r to the indoor system sp ecification).

1.7.1.1 If the indoor system has the fixed frequency test operation function, then the outdoor system will calculate the fixed frequ ency according to th e number of the turned on sy stems and operate on the calculated frequency until the indoor system quit the test operation. When the two indoor systems ar e turned on at the sam e time, the outdoor syst em will ent er the operation mode if either of the indoor systems sends the fixed test frequency.

Ta =24℃

Outdoor speed：

Ta =16℃

Ta =10℃

Ta =20℃

M L

i) The outdoor fixed frequency is set according to the indoor system signals. The operation is on the frequency stored in EEPROM ii) The cooling and heating value under the double system operation Under the single system fixed frequency test, the outdoor system will operate according to the turned-on indoor system status. The operation will on the frequency relative to the status. Under the double system operation test, the outdoor system will automatically operates on the double system fixed test frequency.

1.7.2 Normal operation frequency control Under the outdoor system normal operation, the fixed frequencies of different indoor systems should be tested according to the different capacity of the respective indoor systems. Then the outdoor system will dec ide the opera tion frequenc y according t o the fixed fr equencies, the difference between set temperature and the indoor temperature and the indoor fan speed.

1.8 malfunction and protection 1．8．1 Three minutes’ waiting mode protection

1) No matter caused by which condition, the outdoor compressor is not allowed to be restart within 3 minutes after a compressor shut down.

2) If the compressor shut down is caused by malfunctions and the malfunction is corrected 3 minutes after, the compressor can restarted of the correction at once.

1.8.2 Intelligent power module protection. i) Under the compressor operation, if the IPM protection happens under the voltage over/under loading, over heating or current over charge, the compressor will stop and res tart 3 minutes later. ii) If the IPM protection happens 4 times continuously, the compressor will be totally turned off and can be restarted only by a second connection to the power supply.

1.8.3 Sensor malfunction protection. i) There are 6 sensors in the outdoor syst em. The outdoor system will stop if any of the six sensors has malfunctions. The malfunction will be reported respectively. ii) After the malfunction has been corrected for 3 minutes, the system can be rest arted.

Outdoor restriction condition codes display: When the outdoor system operates, because of the various temperature or electrical device restrictions, the compres sor has to ensure the maximal output withi n a safe frequency range. This restriction condition only rep resent the most possible condition at the t ime, can only be used as a reference in experiments.

1# Normal, no restriction 2# Power voltage restriction 3# outdoor heat interaction restric tion under the cooling mode; in door heat

interaction under the heating mode.

4# main current restriction 5# outlet temperature restriction 6# indoor heat interaction temperature restriction. (frosting preven tion) 7# Indoor fan speed restriction 8# Outdoor frequency conversing voltage restriction

1.8.4 The malfunction codes：

After the stopping of the system, the flashing time of the LED02 is the malfunction

code. For example： Malfunction N.O 4

2.5sec 2.5sec

1# Ambient sensors circuit break. 2# Hot temperature sensor circuit breaks or shorts. 3# Outlet temperature sensor circuit breaks or shorts. 4# DC compressor feedback. 5# Outdoor system communication malfunction. 6# Current overcharge. 7# No load. 8# Overloaded/ under loaded voltage. 9# DC compressor failure. 10# Refrigerating overload. 11# Defrosting mode. 12# IPM protection. 13# E2 ROM reading failure. 14# E2 ROM coining failure. 16# NO AC power. 17# Aspiration sensor circuit breaks. 19# DC compressor speed control failure. 21# Coil 1 sensor circuit breaks or shorts. 22# Coil 2 sensor circuit breaks or shorts. 31# System A communication malfunction. 32# System B communication malfunction.

Dealing with the malfunctions

4# Compressor feedback malfunction: Check the main board CN301 and the module jack CN3.

Check the CN04 on the main board and test the output of 15V DC current between the pins of CN04. Check the location of the chip COM01 at the back of the mainborad, to see if there is any circuit shorts. Check the states of the 3 phases of the modules. If the feedbacks of all the checks and tests are normal, then replace COM01.

5# Outdoor system communication malfunction: check the module jack CN401 on the

main board, to see if the conducts of the jack are normally connected with the terminal stripe. Test if there is a 5V DC current between the pin 8 and pin 16 of IC03 on the main board. Check if the pin 3 and pin 13 of this chip are correctly connected with the pin 44 and pin 45 of the IC01, to test if there is any circuit shorts. Test if there is any communication wave output at the pin 4 of PQ 404 and PQ 408 and at the pin 2 of PQ403 and PQ 407 and if there is any circuit shorts on the systems of the surrounding devices ( the misconnect between the live line and the zero line.)

6#. Current overcharge: Test if there is any circuit block on the system. Test the 4 diodes

D501-D504 on the main board with a multimeter. Test if there is any 5v circuit shorts at R501-R503 and D-505. Replace device CT501.

7#. No load: Test the 4 diodes D501-D504 on the main board with a multimeter. Test is there

is any circuit short with GND at R501-R503 and D505( special focus on the possible circuit short condition the terminal A of D502 and terminal K of D504). To test if there is any formation of resistance or GND circuit short at the capacitor C501. Replace device CT501.

8# Overloaded/ under loaded voltage: Test if there is 310V DC between the terminal P and N

of the program module. Test if there is any circuit short at R301-R304 , R324 and R325. Test if there is any formation of resistance or GND circuit short at the capacitor C304.

9# DC compressor start-up failure: Please restart; Check if the input and output at 7805(IC04)

is correct. Check the status of the module on the module board. (the normal reading of the diode mode on the multimeter should be 0.45 at the P, N, U, V, W disconnect terminals.);Check the voltage of C4,C5,C6 on the module board is 15V or not.

10#. Refrigeration overload: the temperature of pipe is too high,if the malfunction is reported frequency, check the refrigerant is enough or not.

11# Defrosting condition: After the completion of the defrosting, the system will return to normal.

12#. IPM protection: check if the system circuits are at normal condition. Check if there is any GND short at R08 on the main board, to test if there is any formation of resistance or GND circuit short at the capacitor C02, or any other protection modes caused by temporal current surge as a result of inappropriate operation or other reasons.

13#，14# malfunctions: Check if the installation of IC05 on the main is correct. (if the installation is reversed), and if there is any break at the back of the main board. Replace IC05 directly.

16# No AC power: Check the power supply. 19#DC compressor speed control failure: Restart the compressor after it is turned of for a while. If the restart doesn’t work, refer the suggestions of NO 9 and NO 4. 31# and 32# A/B system communication problem: please refer to NO 5 and check the indoor system communication circuit.

vals can be controlled in E2.

CIRCUIT AND WIRING DIAGRAM

1 2 3 4 5 6 78

Title

Number Revi

Size

Date: 31-Oct-2005 Sheet of File: D:\backup-liupeng\ .DDB

刘朋的数据库 Drawn By:

R28

2K/1/4W

R27

10K/1/4W

R25

1K/1/4W

R24

510/1/4W

R23

510/1/4W

1K/1/4W

1N4148

VCC

CN8

B7B-PH-K

102/25V

R17

3k/1/4w

CN6

B3B-EH-A

FUSE

3.15A

CN2

B3B-XH-A

GND

SDA

SCL

VCC

IC02 E2ROM24C01

K101

C114

102/50v

R127

1K/1/4W

R126

10K/1/4W

CN4 S4B-XH-A

+12

D8 1N4007

C10

2200u/25v

Z301

560v

C307

474/275V

VCC

104/50v

Vin

GND

Vout

V1 7805

104/50v

T301

CN3 5273-03A

CR1 8MHz

R14

1K/1/4W

R104

10K/1/4w

VCC

R105

1K/1/4w

C101

104/50v

R109

4.7k/1/4w

R110

4.7k/1/4w

C112

4.7u/50v

C111

4.7u/50V

VCC

IC04 MC1413P

CN1 B5B-PH-K-S

S101 speeker

N2 1815

R130

4.7K/1/4W

R131

4.7K/1/4W

R132

10K/1/4w

R133

10K/1/4w

1N4007

D4 1N4007

TLP521

1K/1/4W

100K/1/4W

R9 2K/1/4W

102/50V

VCC

R10 25K/3W

D6 1N4007

Z3 18V

C11

100U/50V

C12

473/50V

R11

4.7k/1/4W

1N4007

C13

103/50V

R12

1K/1/4W

R13

1K/1/4W

R15

120/1/4W

C14 470U/25V

C304

1.2u/450V

CN5 B3P5-VH

VCC

O5 TLP3616

R18

120/1/2w

C16

102/630v

560/1/4w

104/50v

IC01

807

102/25V

R16

1K/1/4W

C15

104/50v

IC05

MC34064

C17

1u/50v

R19

10k/1/4w

VCC

C18

104/25V

C2 104/25V

100U/25V

104/50v

VCC

10k/1/4w

1k/1/4w

CN7 5289-2A

RL1 JQ1a-12V

+12

R3 270/1/4w

VCC

+12

C20

104/25V

C21

104/25V

VCC

1N4007

1815

CN9

B3B-XH-A

+12

10K/1/4W

R20

10K/1/4W

R21

4.7K/1/4W

VCC

R22

5.1K/1/4W

R26

1K/1/4W

SELFKEY

SHORTKEY

AB_CODEChoice

SW3

POWER

TIME

RUN

SCL

SCII

SCIO

RECEIVE

AIRLED

COM1

POW1

FAN

COM1

POW1

COM

POW

ACV

1A/1.85MH

ACV

SCIO

SCII

POW

COM

WIND

SW1

SDA

HEALTH

HALLP

WIND

SW1SW2 SW3 SW4

BUZZER

HEALTH

AIR

SELF

SDA

SCL

1 2 3 4 5 6 78

7654321

Title

Number RevisionSize

A2 Date: 20-Jan-2006 Sheet of File: C:\Documents and Settings\chengyongfu\ \BACKUP~1.DDB

桌面Drawn By:

R16 10K/1/4W

R05

4.7K/1/4W

R401 1K/1/4W

C401

102/50V

R403

4.7K/1/4W

C405

102/50V

R408

4.7K/1/4W

R406 1K/1/4W

C413

102/50V

R418

4.7K/1/4W

C409

102/50V

R413

4.7K/1/4W

P404

SIGD

P401

SIGC

CT501 0057W

E501

220uF/16V

R417

1K/1/4W

C415

102/50V

D403

1N4007

C414

104/50V

ZD403

DZB30C

R419

20K/1/4W

R420

1.8K/1/4W

PTC403

MZ2J102M

C416

103/50V

C412

103/50V

PTC404

MZ2J102M

R415

1.8K/1/4W

R414

20K/1/4W

ZD404

DZB30C

C410

104/50V

D404

1N4007

C411

102/50V

R412

1K/1/4W

R407

1K/1/4W

C407

102/50V

D402

1N4007

C406

104/50V

ZD402

DZB30C

R409

20K/1/4W

R410

1.8K/1/4W

PTC402

MZ2J102M

C408

103/50V

C404

103/50V

PTC401

MZ2J102M

+12

DO4GND

ORG

VCC

IC05

E2ROM

1 2 3 4 5 6 7

IC07

TD62003

1 2 3 4 5 6

CN11 B6B-XH-A

1 2 3 4 5 6

CN12 B6B-XH-A

1 2 3 4 5 6

CN10 B6B-XH-A

1 2 3 4 5 6

CN09 B6B-XH-A

1 2 3 4 5 6 7

IC06

TD62003

C207

104/50V

R207

4.7K/1/4W

E207

1uF/50V

R215

10K/1/4W

C206

104/50V

R206

47K/1/4W

E206

1uF/50V

R214

10K/1/4W

R213

10K/1/4W

E205

1uF/50V

R205

4.7K/1/4W

C205

104/50V

C204

104/50V

R204

4.7K/1/4W

E204

1uF/50V

R212

10K/1/4W

R211

10K/1/4W

E203

1uF/50V

R203

4.7K/1/4W

C203

104/50V

C202

104/50V

R210

10K/1/4W

R202

4.7K/1/4W

E202

1uF/50V

C201

104/50V

R209

10K/1/4W

E201

1uF/50V

R201

4.7K/1/4W

2CN202

defrost temp .sensor

E03

470u/25v

+12

1 2

CN02

B2B-EH-A

C07

104/50V

R24

1K/1/4W

R25

10K/1/4W

C09

104/50V

C501

104/50V

C200

104/50V

LED01

R12 1K/1/4W

1 3

Vout

Vin

GND

IC04 7805

R04

4.7K/1/4W

D501

1N4148

D505 1N4148

E02

470u/25v

C08

104/50V

10 9 8 7 6 5 4 3 2 1

CN03

B10B-XH-A

E01 1uF/50V

IC02 MC33064

C02

103/50V

C01

103/50V

R18

560/1/4W

R22

10K/1/4W

R208

10K/1/4W

R26

1K/1/4W

R200

4.7K/1/4W

R503

10K/1/4W

R1910K/1/4W

R08

5.1K/1/4W R501

390/1/4W

R10 1K/1/4W

R11 1K/1/4W

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

63 62

IC01 8849

R09

4.7K/1/4W R502 510/1/4W

D504 1N4148

E200

1uF/50V

D502 1N4148

D503 1N4148

R23

1K/1/4W

123456789

RA01 R8*4.7K

C06

104/50V

1 2

L201 330uH

R07

20K/1/4W

R06

4.7K/1/4W

R13 1K/1/4W

R15 1K/1/4W R14 1K/1/4W

+5 +12

R405

1.8K/1/4W

R404

20K/1/4W

ZD401

DZB30C

C402

104/50V

D401

1N4007

C403

102/50V

R402

1K/1/4W

C04

103/50V

R411 1K/1/4W

R416

1K/1/4W

ALARM

ACN1

SIGA

SCIOA

SCIIA

SCIID

SCIOD

SIGD

ACN1

SIGB

SCIOB

SCIIB

SCIIC

SCIOC

SIGC

ACN1

E2 DI E2 DO

E2 SCK

E2 CS

VA0

VA1

VA2

VA3

VB0

VB1

VB2

VB3

VD3

VD2

VD1

VD0

VC3

VC2

VC1

VC0

AC I

RED

ALARMSELFCHECK

PIPEC T

PIPED TSELFCHECK

VA0 VA1 VA2 VA3 VB0 VB1 VB2 VB3 VC0 VC1 VC2 VC3

E2 CS VD0 VD1 ZERO

VD2 VD3

SUCT T

PIPEB T PIPEA T

HEAT T AIR T

DISCHARGE T

E2 SCK

E2 DO

E2 DI

SCIO SCII

DC V AC I

A B

PDU PDV PDW

LED2

PFC

1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9

IC03 74HC4052

SCIIA

SCIOA

SCIID SCIOD

SCIOB

SCIIB

SCIIC

SCIOC

SCII

SCIO

+15

R323

100/1/8W

R310

5.1K/1/8W

C303

681/25V

C302

681/25V

C301

681/25V

R320

5.1K/1/8W

R315

5.1K/1/8W

R328

5.1K/1/8W

R326

5.1K/1/8W

R327

5.1K/1/8W

R321

100/1/8W

R322

100/1/8W

R319

5.1K/1/8W

R318

182K/1/8W

R317

182K/1/8W

R316

182K/1/8W

R301

182K/1/8W

R302

182K/1/8W

R303

182K/1/8W

R304

5.1K/1/8W

R305

5.1K/1/8W

R324

100/1/8W

R306

182K/1/8W

R307

182K/1/8W

R308

182K/1/8W

R309

5.1K/1/8W

R311

182K/1/8W

R312

182K/1/8W

R313

182K/1/8W

R314

5.1K/1/8W

5 4

312

COM01A

LM339

7 6

COM01B

LM339

9 8

COM01C

LM339

310V+UV

PDU

PDV

PDW

+12

RC02

0.1+120/300VAC

RC01

0.1+120/300VAC

1 2

CN08

B2P3-VH

+12

RL04

JQ1a-12V

1 2 3 4 5 6 7

IC08

TD62003

CN07

B5P9-CH

RL01

JQ1a-12V

RL02

JQ1a-12V

RL03

JQ1a-12V

ACL

PTC RELAY

FAN L

FAN M

FAN H

ACN

VALVE

FOUR WAY VALUE

H M L

COM

FMC

VALVE

FAN L

FAN M

FAN H

PTC RELAY

K01 BMKG

R01

10K/1/4W

R02

10K/1/4W

R03 10K/1/4W

C05

104/50V

R21

4.7K/1/4W

123456789

CN301 B9B-XH-A

CN04 B2B-XH-A

1 2

CN01

XH-2

LED02

LED2

R17 1K/1/4W

C VA11 VA00

VA11 VA00

CN05 +5

C306

104/50V

C10 104/50V

C305

104/50V

AC I

R325

10K/1/8W

C304

104/50V

DC V

CN06

+12

CN201

PIPE AB sensor

CN203

suction temp. sensor

CN206

ambient temp.sensor

CN205

discharge temp. sensor

CN204

PIPE CD sensor

CR01

16M

PQ407

TLP521

PQ408

TLP521

PQ402

TLP521

PQ404

TLP521

PQ405

TLP521

PQ401

TLP521

PQ403

TLP521

PQ406

TLP521

C11 2UF

P407

P405

ACN1

PIPEC T

PIPED T

PIPEB T

PIPEA T

HEAT T

SUCT T

DISCHARGE T

AIR T

P406

U V W X Y Z

1 2 3

CN401

ACN1

B3P5-VH



ANION

GENERATOR

THE UNIT WITHOUT THE HEALTH FUNCTION HAS NOT

Y/G

(+15V)

TO INDOOR UNIT B

TO INDOOR UNIT A

Y/G

DON'T TOUCH CAPACITOR, EVEN AFTER PLUG-OFF ( DANGER OF ELECTRIC SHOCK)

The capacitor retains high voltage even after the plug-off. For your safety, be sure to wait at least 5 minutes. after plug off and use a tester to confirm the voltage between connector P1 and P2(on PFC board) is less than DC 10V before start

servicing.

FUSE

CN11CN12

PIPE

A B

WHITE

ELECTRIC EXPANSION VALVE

A B

RED

250V/25A

CN203

DEFROST

TEMP.SENSOR

CN202

CN201

CN205

CN401

4-WAY VALVE

CN301

CN08

CN07

FAN MOTOR

A(C) A(L) A(N)

B(N)

B(L)

B(C)

TERMINAL BLOCK

CN206

AMBIENT

P407

P406

POWER

CN06

CN04

CN05

PFC

CT501

CN8

P4 P5

CN2

CN1

CN3

MODULE BOARD

P6(L)

P2(DCOUT-)

P5(L)

P3(ACIN)

CN7(17V)

(15V)

(17V)

V W

P4(ACIN)

P1(DCOUT+)

CN4

PFC BOARD

CN1

Y/G

2500uF/400V

CAPACITOR

PFC REACTOR

CN03

COMPRESSOR

R(U)

S(V)

C(W)

PIPE

SUCTION

Y/G

POWER BOARD

COMPRESSOR DISCHARGE

TEMP.SENSOR

B： BLACK

/GREEN

Y/G：YELLOW

W： WHITE

OR：ORANGE BL：BLUE

R： RED

BR：BROWN

OUTDOORS WIRING DIAGRAM

0010556999

TROUBLE SHOOTING

Trouble shooting

Before asking for service, check the following first.

Normal Performance inspection

Noise is heard

Phenomenon

Cause or check points

The system does not restart immediately.

Smells are generated.

Mist or steam are blown out.

Multiple

check

Does not work at all.

Poor cooling

Application temp. range of air conditioner -7oC~43oC.

When unit is stopped, it won't restart immediately until 3 minutes have elapsed to protect the system. When the electric plug is pulled out and reinserted, the protection circuit will work for 3 minutes to protect the air conditioner.

During unit operation or at stop, a swishing or gurgling noise may be heard. At first 2-3 minutes after unit start, this noise is more noticeable. (This noise is generated by refrigerant flowing in the system.) During unit operation, a cracking noise may be heard. This noise is generated by the casing expanding or shrinking because of temperature changes Should there be a big noise from air flow in unit operation, air filter may be too dirty.

This is because the system circulates smells from the interior air such as the smell of furniture, cigarettes.

During COOL or DRY operation, indoor unit may blow out mist. This is due to the sudden cooling of indoor air.

Is power plug inserted? Is there a power failure? Is fuse blown out?

Is the air filter dirty? Normally it should be cleaned every 15 days. Are there any obstacles before inlet and outlet? Is temperature set correctly? Are there some doors or windows left open? Is there any direct sunlight through the

curtain)

window during the cooling operation?(Use Are there too much heat sources or too many

people in the room during cooling operation?

Number

Trouble

phenomenon

Description

Parts that may appear problems

and the Cause

Prepared parts

and tools

Applicable

machine

Not work with

remote

controller

Use the

remote

controller to

boot

machine

and it

doesn’t

work

7805,transformer, piezo

resistance, fuse,remote controller,

receiver. If it can be booted by

using manual emergency switch,

that indicate the power cable and

wiring board are electriferousˈ

remote controller or receiver isn’t

well˗else check whether piezo

resistance ,fuse and 7805 are

wellǄ

7805,transfor

mer, fuse,

piezo

resistance,

remote

controller,

receive,avome

ter

invariable

frequency

split unit

Outdoor fan

motor

doesn’t work

Outdoor

fan motor

doesn’t run

when

cooling or

heating

Optical SCR, indoor P.C. board.

Check the 2# and 4# terminal

block of indoor unit, if it has 220V

voltage, wiring board is normal,

then check whether the optical

SCR is good, replace it if it has

flaw˗else check whether there are

something wrong with connecting lineˈoutdoor fan motor capacitor

and coil assemblyǄ

Optical SCR,

indoor P.C.

board ,

outdoor fan

motor

capacitor,

outdoor fan

motor,avomet

invariable

frequency

split unit

Indoor fan

motor

doesn’t work

Indoor fan

motor

doesn’t run

when

cooling or

heating

Optical SCRˈindoor P.C. board Ǆ

Check whether indoor fan motor has 80-170V voltageˈif it hasˈ

wiring board is normal, then check

whether the optical SCR is good,

replace it if it has flaw˗else check

whether there are something

wrong with connecting lineˈindoor

fan motor capacitor and coil

assemblyǄ

Optical SCRˈ

indoor P.C.

board , indoor

fan motor capacitor,

indoor fan

motor,avomet

invariable

frequency

split unit

4 Not heating

Cooling but not heating

Indoor P.C. board , four-way valve

coil, body of four-way valveˈCheck

the 2# and 3# terminal block of

indoor unit, if it has 220V voltage

when heating but no when cooling,

then P.C. board is abnormal; else

check whether four-way valve coil

and the body of four-way valve are

damagedǄ

Indoor P.C.

board ,

four-way valve

coil, body of

four-way

valve,

avometer

invariable

frequency

split unit

Abnormality Diagnosing

Indoor unit

make water

Oriented

wind panel

or drain

pan makes

water when

used

Drain pan, drain hose. Check

whether the indoor unit is installed

horizontal, drain hose of indoor

unit is leveled off ,the hole is over

high ˈfilter and drain hose is dirty

and walled upǃdrain pipe is

underwaterǄ

drain pan,

drain hose

invariable

frequency

split unit

Compressor

doesn’t work

running

indicator

lights upˈ

but

compressor

doesn’t

work

Indoor P.C. board , startup capacity for compressor, overheat protector,

compressor. Check the 1# and 2#

terminal block of indoor unit

whether it has single AVˈif not then

examine the power relay of P.C.

board ˈelse check overheat

protector, startup capacity for

compressor and compressor itself

Indoor P.C.

board , startup

capacity for

compressor,

overheat

protector,

compressor,av

ometer

invariable

frequency

split unit

The outdoor

fan motor

and

compressor

don’t work

The

running lamp of air conditioner

lights but

the outdoor

fan motor

and

compressor

don’t run

Remote controller ǃelectrolytic

capacitor of 2500UFǃ7805ǃ

outdoor heat exchanger sensor

and ambient temperature sensor.

Use temperature key of remote

controller to watch how much

times the timing lamp glitters and

judge what’s the trouble .If there is

no glitter we should check the

terminal block to see if there is AC

voltage about 220V.Check the electrolytic capacitor of 2500UF and see if there is current about

310V.Examine the output of the

7805 and switch transformer

together with the resistance of the

sensor.

Remote

controller ,elec

trolytic

capacitor of

2500UFǃ

7805ǃ

outdoor heat

exchanger

sensor and

ambient

temperature

sensorǃ

avometer

Little split

unit of

frequency

conversion

The outdoor

fan motor runs but the compressor

doesn’t run

The running

lamp of air

conditioner

lights ,the

outdoor fan

motor works,

but the

compressor

doesn’t work

Power modelǃswitch transformerǃ

compressor. Check the temperature key

of remote controller to watch how many

times the timing lamp glitters and judge

what’s the trouble. Examine the two

ends of PN to see if there is DC voltage

about 310V.Four group DC power

resource of 15V.Check the triphase coil

assembly of the compressor and see if

they are the same.

Power modelǃ

switch

transformerǃ compressorǃ

avometer

Little split

unit of

frequency

conversion

Don’t make

heat

The air

conditioner

can

refrigerate

but can’t

make heat

Outdoor P.C. Boardǃ4 way valve

coilǃ 4 way valve body. Examine

the CN204 at Outdoor P.C. Board

and watch if there is 220V

voltage .If there doesn’t have we

can judge that the P.C. Board is

bad. If there has, we need to

connect and check the whether the

4 way valve coil and the 4way

valve body have been damaged .

Outdoor P.C.

Boardǃ4way

valve coilǃ 4

way valve

bodyǃ

avometer.

Little split

unit of

frequency

conversion

10 Show error

code E8

The

machine

doesn’t

work and

shows error

code E8

Multimeter negative generatorǃ

indoor P.C. board ǃconnecting and

inserting lines .Check if the

Multimeter negative generator is

plane and the grounding (CF) is touching well, then examine not

only whether the indoor P.C. Board

and control board have been

damaged or not but also the

connecting lines are good.

Multimeter

negative

generatorǃ

indoor P.C.

Boardǃ

control

board ǃ

grounding

(CF)ǃ

avometer.

The series

frequency

fixed

cabinet

type

11 Can’t start

The air

conditioner

can’t start

Transformerǃindoor

microcomputer plateǃfuse. Check

if the transformer has been

burned. power wave filterǃ

LX102.Check whether the fuse

and indoor microcomputer plate

have been damaged.

Transformerǃ

power wave

filterǃindoor

microcompute

r plateǃfuseǃ

avometer.

The series

frequency

fixed

cabinet

type

Show error

code F11

When the

air

conditioner

has run

about

5minutes

the indoor

unit shows

the error

code F11.

The system pressureǃoutdoor P.C.

BoardǃPower source voltageǃ

power modelǃthe connecting lines

of compressor. The cause is that protective action has been taken

when it runs with large burden, there is more refrigerant than it

should be .Examine the outdoor

P.C. BoardǃPower source voltageǃ power model and see whether they

have been damaged and the

connecting lines touch well, if not,

adjust it to be normal.

outdoor P.C.

BoardǃPower

source

voltageǃpower

model .

The

machine of

frequency

conversion

split unit

INSTALLATION

No.0010556915

Installation Manual of Room Air Conditioner

The models adopt HFC free refrigerant R410A

The marks from to in the figure are the parts numbers. The distance between the indoor unit and the floor should be

more than 2m.

Read this manual before installation

1.Driver

2.Hacksaw

3.Hole core drill

4.Spanner(17,19 and 26mm)

5.Torque wrench(17mm,22mm,26mm)

6.Pipe cutter

7.Flaring tool

8.Knife

9.Nipper 12.Reamer

10.Gas leakage detector or soap-and-water solution

11.Measuring tape

Explain sufficiently the operating means to the user according to this manual.

Pipe supporting plate

No. Accessory parts

Remote controller

R-03 dry battery

Mounting plate

Drain hose

Screw

Plastic cap

Drain-elbow

Cushion

Number of articles

Accessory parts

4X25

Indoor unit A

Indoor unit B

more than 10cm

more than 60cm

more than 15cm

more than 10cm

Attention must be paid to the rising up of drain hose

more than 10cm

Drawing for the installation of indoor and outdoor units

Necessary Tools for Installation

A B

C D E

F G

Optional parts for piping

Mark

Parts name

Non-adhesive tape

Adhesive tape

Saddle(L.S) with screws

Connecting electric cable for indoor and outdoor

Drain hose

Heating insulating material

Piping hole cover

Arrangement of piping directions

Rear left

Rear right

Left

Below

Right

more than 10cm

more than 5cm



Fixing of outdoor unit

Indoor Unit

Selection of Installation Place

Power Source

Selection of pipe

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 nails or 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 supported sufficiently. Place, not affected by heat or steam generated in the vicinity, where inlet and outlet of the unit are not disturbed. Place, possible to drain easily, where piping can be connected with the outdoor unit. Place, where cold air can be spread in a room entirely. Place, nearby a power receptacle, with enough space around. (Refer to 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 the indoor unit can receive signals when the fluorescent lamps in the room are lightened.

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

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 insulated as they become Iow temperature in operation. Use optional parts for piping set or pipes covered with equivalent insulation material. The thickness of the pipe must be 0.8 mm at least.

Floor fixing dimensions of the outdoor unit (Unit:mm)

583 113.5113.5

319.5

Liquid pipe( )

Gas pipe( )

6.35mm(1/4")

9.52mm(3/8")



Indoor unit

1.Fitting of the Mounting Plate and Positioning of the wall Hole When the mounting plate is first fixed

1.Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be fixed against the wall, then temporarily fasten the plate with one steel nail.

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

3. Find the wall hole location A using a measuring tape

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

Make a hole of 70 mm in diameter, slightly descending to outside the wall. Install piping hole cover and seal it off with putty after installation

When the mounting plate is fixed side bar and lintel

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

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

3.Installation of the Indoor Unit Drawing of pipe

[ Rear piping ]

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

[ Left Left-rear piping ]

In case of left side piping, cut away, with a nipper, the lid for left piping. In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rear piping which is marked on heat insulation materials.

(Section of wall hole)

Piping hole pipe

Outdoor side

Thickness of wall

Indoor side

Wall hole

70mm

Find the level position

B= 70mm

A=145mm

Indoor unit

4.Connecting the indoor/outdoor Electric Cable

Fixing the indoor unit body

Removing the wiring cover

[Other direction piping]

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

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

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

Remove terminal cover at right bottom corner of indoor unit, then take off wiring cover by removing its screws.

When connecting the cable after installing the indoor unit

1. 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.

[Cautions]

1.Make sure it is unit A or unit B, when make wiring.

2.Unit to be connected to stop valve A on outdoor unit is unit A,while the one to be connected to stop valve B is unit B.

3.Refer to wiring diagram.

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

Lid for right piping

Lid for under piping

Lid for left piping

Fix with adhesive tape

Heat insulation material

Drain hose

Piping

Indoor/outdoor electric cable

Pipe supporting plate

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.

IMeans for disconnection from the supply mains having a contact separation in all poles must be incorporated in the fixed wiring in accordance with the wiring rules. The power plug is self-provided,the power plug must acquired the local attestation.

When connecting the cable before installing the indoor unit

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.

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

Power cable: 3G2.5mm

Indoor unit B

Outdoor unit

YEL/GRN

BRN BLU

{

YEL/GRN

RED

WHT

BLK

WHT

BLK

RED

A(N)

(C)

(

)

YEL/GRN

RED

WHT

BLK

WHT

BLK

YEL/GRN

RED

Indoor unit A

(

)

(C)

(

)

YEL/GRN

1 2

3(C)

1 2

3(C)

4G0.75mm

Outdoor unit

1.Installation of Outdoor Unit

3.Connection

4.Attaching Drain-Elbow

2.Connection of pipes

Install according to

To bend a pipe, give the roundness as large as possible not to crush the pipe ,and the bending radius should be 30 to 40 mm or longer. Connecting the pipe of gas side first makes working easier. The connection pipe is specialized for R410A. The max vertical distance between the indoor unit and the outdoor unit is 5 m.

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 has to be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerant must 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 charge additional refrigerant.

Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully into terminal block, then tighten the screws.

If wiring is not correct, proper operation can not be carried out and controller may be damaged.

If the drain-elbow is used, please attach it as figure. (Note: Only for heat pump unit.)

Drawing for the installation of indoor and outdoor units

Insert the cable according to terminal number in the same manner as the indoor unit.

Fix the cable with a clamp.

Half union

Flare nut

Spanner

Torque wrench

Forced fastening without careful centering may damage the threads and cause a leakage of gas.

Pipe Diameter ( )

Liquid side 6.35mm(1/4") Gas side 9.52mm(3/8")

Fastening torque

18N.m 40N.m

Gas side 12.7mm(1/2")

55N.m

Outdoor unit

6.Purging Method:To use vacuum pump

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

3-way valve Gas Side

2-way valve

Service port cap

Gaugemanifold(for R410A)

Vacuum pump(for R410A)

Open

Liquid Side

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

Vacuumize for over 15min. And check the level gauge which should read -0.1 MPa (-76 cm Hg) at Iow pressure side. After the completion of vacuumizing, close the handle 'Lo' in gaugemanifold and stop the operation 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, make flaring work again, the return to the beginning of .

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

No gas leakage?

In case of gas leakage, tighten parts of pipe connection. If leakage stops, then proceed steps.

Detach the charge hose from the service port, open 2-way valve and 3-way. Turn the valve rod anticlockwise until hitting lightly.

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

After attaching the each caps, check the gas leakage around 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, discharge whole refrigerants from the service port. After flaring work again and vacuumize, fill up prescribed refrigerant from the gas cylinder.

Anti countercurrent joint

3-way valve

2-way valve

3-way valve

2-way valve

To indoor unit A

To indoor unit B

Tube(for R410A)

3-way valve

Valve rod cap

Open

1.Cut pipe

3.Insert the flare nut

4.Flare pipe

It becomes high midway.

The end is immersed in water.

It waves. The gap with the ground

is too small

Less than 5cm

There is the bad smell from a ditch

2.Remove burs

0~0.5mm 1.0~1.5mm 1.5~2.0mm

Flare tool for R410A

Clutch-type

Conventional flare tool

clutch-type(Rigid-type)

Wing-nut type (Imperial-type)

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 an earth 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 is carried out surely to outdoor. In case that the attached drain hose is in a room, please apply heat insulation to it without fail.

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

Gas leak from pipe connecting? Heat insulation of pipe connecting? Are the connecting wirings of indoor and outdoor firmly inserted to the terminal block? Is the connecting wiring of indoor and outdoor firmly fixed?

Is drainage securely carried out? Is the earth line securely connected? Is the indoor unit securely fixed? Is power source voltage abided by the code? Is there any noise?

Put check mark in boxes

Is the lamp normally lighting? Are cooling and heating (when in heat pump) performed normally? Is the operation of room temperature regulator normal?

Flare tooling die

Correct

Incorrect

Lean Damage of flareCrack Partial Too outside

1. SWING button

Used to select up or down air sending direction.

2. HOUR buttons

Used to set clock and timer setting.

3. MODE button

Used to select operation mode: AUTO, COOL, DRY, FAN, HEAT.

23. ON/OFF button

Used for Unit's start and stop.

6. TIMER button

Used to select the air conditioner's programmed start (TIMER ON), programmed stop (TIMER OFF) or the start followed by the stop (TIMER ON-OFF) or vice versa (TIMER OFF-ON).

8. HEALTH display

9. SLEEP display

12. FAN SPEED display:

LOW

MED

AUTO

10. SWING UP/DOWN display

15. OPERATION MODE display:

16. SIGNAL SENDING and A/B CODE display

17. POWER/SOFT display

18. Left/right airflow display

Not available on these Models.

13. TIMER ON display

22. FAN button

Used to select fan speed: LOW, MED, HI, AUTO.

25. SET button

Used to confirm Timer and clock settings.

24. SLEEP button

Used to select sleep mode.

7. RESET button

If the remote controller appears abnormal, use a sharp pointed article to press this button and reset the remote controller's normal operation.

27. LOCK button

Press this button once to disable all buttons and remote controller's display. Press this button again to cancel lock condition.

28. CODE button

Use a sharp pointed article to press this button and select CODE A or CODE B. On these Models, please select CODE "A".

OFF

SWING

FAN

TEMP

OFF

DAY

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

AM PM

1 2

16 17

18 19

20 21

22 23

4. HEALTH button

Used to set healthy operation.

5. CLOCK button

Used to set correct time.

14. TEMP buttons

Used to select your desired temperature.

11. LOCK display

Operation mode

Display

AUTO COOL

DRY

FAN

HEAT

19. TEMP display

20. TIMER OFF display

21. CLOCK display

26. POWER/SOFT button

˚C

INFRARED REMOTE CONTROLLER

For explanation purposes, all the functions which can be activated by the remote controller are illustrated below. During operation, the display on the remote controller will show information relating to actual setting by the User.

Notice:

These Units have power failure resume function. The power plug must be pulled out or/and the main switch must be turned to OFF position in case of sudden power failure, otherwise the unit will automatically run in previous settings as before the power failure when power returns. This will prevent undesired restarts if nobody's inside the house for a long time. Auto-restart is performed 3 minutes after the power is restored.

INFRARED REMOTE CONTROLLER

When the air conditioner is started for the first time or after replacing the batteries on the remote controller, clock should be adjusted as follows: Press the "CLOCK" button: "AM" or "PM" indicator flashes. Press or to enter the current time setting mode. Each time a button is pressed, the time will increase or decrease by 1 minute. If the button is kept pressed, time will change quickly. Press the "SET" button to confirm the settinge; "AM" or "PM" indicator will stop flashing and the current time setting will be complete.

Current time setting

Notes:

After replacing batteries of the remote controller, all indicators on the LCD will be displayed for a very short time. This is a self-check of the remote controller. After a short delay the LCD indicators will become normal.

Additional information about the remote controller

How to insert batteries in the remote controller

Remove the lid.

Gently press the part marked with " " and slide the lid away from the Unit's body.

Insert the dry batteries.

Make sure both dry batteries are set in the right directions as marked inside the hollow.

Reattach the lid.

Verify by indicators on the display.

If nothing appears on the display after you press the ON/OFF button, check again setting of the dry batteries.

Note:

• Use two new dry batteries of the same brand

and type ("AAA").

• Remove the batteries from the remote

controller when it is not used for a long period.

• When the remote controller does not work

after replacement of batteries, remove and

reinsert both of them after 30 seconds or

more, or press several times the ON/OFF

button on the remote controller with no

batteries inside.

Correct handling of the remote controller

• When operating, point the signal sending head toward the remote signal receiver of the Indoor Unit. The distance between the remote controller and the Indoor Unit should be within 7m.

• Make sure there are no obstacles between the remote controller and the receiver.

• The signal receiver may not receive the signals in a room with electro-lighting type fluorescent lamp or cordless phone.

• Handle the remote controller with care. Do not drop, throw or immerse in water the remote controller.

• Do not expose the remote controller to direct sunlight or heating sources.

NOTE: If batteries in the remote controller are replaced, default mode of the air conditioner will resume as follows: • Mode: Auto • Set temperature =None • Timer =None • Airflow speed=AUTO.

Mode option

Press the “MODE” button to change the current operating mode. Every press will result in one position movement rightward:

Turning on your appliance

Press the ON/OFF button to start your appliance. The previous operation mode is displayed on the remote controller (except "HEALTH", TIMER, "SLEEP" and "POWER/SOFT" functions).

Airflow speed

Every press of “FAN” button will result in one sector change of the airflow speed as follows:

Turning off your air conditioner

Press the ON/OFF button to turn off the air conditioner. Displayed information on the LCD will disappear, except for the current time. All indicators on the Indoor Unit will extinguish. The air outlet motorized flap will move to its closing position.

AUTO = Automatic operation COOL = Cooling operation DRY = Dehumidifying operation HEAT = Heating operation FAN = Fan only operation Select "AUTO". The most suitable operating mode will be selected according to the room temperature. On the remote controller's LCD, the corresponding indicator will be displayed.

•AUTO=Automatic •LO=Low •MED=Medium •HI=High If the "AUTO" airflow speed is selected, the actual rotating speed of the indoor fan will be set according to the room temperature.

Auto Mode operation

OPERATION MODE SETTING

Temperature setting

Press this button to increase the set temperature value by 1°C. Press this button to decrease the set temperature value by 1°C.

LOW

MED

AUTO

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

AUTO COOL DRY HEAT FAN

OPERATION MODE SETTING

Mode option

Press the “MODE” button to change the current operation mode. Every press will result in one position movement rightward:

Turning on your appliance

Press the ON/OFF button to start your appliance. The previous operation mode is displayed on the remote controller (except "HEALTH", TIMER, "SLEEP" and "POWER/SOFT" functions).

Airflow speed

Every press of “FAN” button will result in one sector change of the airflow speed as follows:

Turning off your air conditioner

Operation in Cooling Mode

AUTO = Automatic operation COOL = Cooling operation DRY = Dehumidifying operation HEAT = Heating operation FAN = Fan only operation Select "COOL". On the remote controller's LCD, the corresponding indicator will be displayed.

•AUTO=Automatic •LO=Low •MED=Medium •HI=High If the "AUTO" airflow speed is selected, the actual rotating speed of the indoor fan will be set according to the room temperature.

LOW

MED

AUTO

Temperature setting

Press this button to increase the set temperature value by 1°C. Press this button to decrease the set temperature value by 1°C.

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

AUTO COOL DRY HEAT FAN

OPERATION MODE SETTING

Mode option

Press the “MODE” button to change the current operation mode. Every press will result in one position movement rightward:

Turning on your appliance

Press the ON/OFF button to start your appliance. The previous operation mode is displayed on the remote controller (except "HEALTH", TIMER, "SLEEP" and "POWER/SOFT" functions).

Airflow speed

Every press of “FAN” button will result in one sector change of the airflow speed as follows:

Turning off your air conditioner

Operation in Dehumidifying Mode

AUTO = Automatic operation COOL = Cooling operation DRY = Dehumidifying operation HEAT = Heating operation FAN = Fan only operation Select "DRY". On the remote controller's LCD, the corresponding indicator will be displayed.

•AUTO=Automatic •LO=Low •MED=Medium •HI=High If the "AUTO" airflow speed is selected, the actual rotating speed of the indoor fan will be set according to the room temperature. NOTE: In "DRY" mode, when the room temperature is higher than set temperature +2°C, the unit will perform discontinuous operation at "LO" fan speed.

Temperature setting

Press this button to increase the set temperature value by 1°C. Press this button to decrease the set temperature value by 1°C.

LOW

MED

AUTO

Ultra-low air flow

Temp. setting + 2˚C

Temp. setting

On reaching temperature setting + 2˚C, unit will run in "DRY" mode.

"COOL" operation: room temperature is higher than temperature setting.

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

AUTO COOL DRY HEAT FAN

OPERATION MODE SETTING

Mode option

Press the “MODE” button to change the current operation mode. Every press will result in one position movement rightward:

Turning on your appliance

Press the ON/OFF button to start your appliance. The previous operation mode is displayed on the remote controller (except "HEALTH", TIMER, "SLEEP" and "POWER/SOFT" functions).

Airflow speed

Every press of “FAN” button will result in one sector change of the airflow speed as follows:

Turning off your air conditioner

Operation in Heating Mode

AUTO = Automatic operation COOL = Cooling operation DRY = Dehumidifying operation HEAT = Heating operation FAN = Fan only operation Select "HEAT". On the remote controller's LCD, the corresponding indicator will be displayed. NOTE: Because of the cold air drafts prevention function, the indoor fan will not start rotating immediately but only after the indoor heat exchanger temperature has reached the preset value.

•AUTO=Automatic •LO=Low •MED=Medium •HI=High If the "AUTO" airflow speed is selected, the actual rotating speed of the indoor fan will be set according to the room temperature.

Temperature setting

Press this button to increase the set temperature value by 1°C.

Press this button to decrease the set temperature value by 1°C.

LOW

MED

AUTO

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

AUTO COOL DRY HEAT FAN

Mode option

Press the “MODE” button to change the current operating mode. Every press will result in one position movement rightward:

Turning on your appliance

Press the ON/OFF button to start your appliance. The previous operation mode is displayed on the remote controller (except "HEALTH", TIMER, "SLEEP" and "POWER/SOFT" functions).

Airflow speed

Every press of “FAN” button will result in one sector change of the airflow speed as follows:

Turning off your air conditioner

Operation in Fan only Mode

AUTO = Automatic operation COOL = Cooling operation DRY = Dehumidifying operation HEAT = Heating operation FAN = Fan only operation Select "FAN". On the remote controller's LCD, the corresponding indicator will be displayed.

•AUTO=Automatic •LO=Low •MED=Medium •HI=High NOTE: The "AUTO" airflow speed option is not available under "FAN" mode.

OPERATION MODE SETTING

Warning:

• Under "FAN" only mode, adjusting the room temperature is not available.

• Under "FAN" only mode, the "SLEEP" function is not available.

OFF

SWING

FAN

TEMP

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

LOW

MED

AUTO COOL DRY HEAT FAN

Adjustment of the airflow direction

NOTICE

Vertical adjustment

When the ON/OFF button is pressed, the motorized louver will move to the most adequate position automatically, according to the selected operating mode (Cool/Dry or Heat).

Swing of airflow

When the "SWING" button is pressed once, the motorized louver will move upwards and downwards within the most appropriate range, as illustrated on the right.

Fixing the louver position

If the "SWING" button is pressed once again, the motorized louver will stop in a certain position which will be kept in memory for the next restart of the air conditioner.

• When the Unit is stopped, the motorized louver closes the outlet vent automatically.

• Do not move the motorized louver by hand, but always use the remote controller. Moving the louver manually may damage the adjustment mechanism. In case the louver does not operate properly, turn off the Unit and then turn it on again.

• During operation in Cooling or Dry mode, the motorized louver should not be kept downwardoriented for a long time. If this is done, dew drops may appear at the air outlet. Even if the automatic oscillation of the motorized louver has been set, this swing mode will be over after one hour, then the louver will automatically move to about 10° from horizontal plane.

• The difference between room temperature and outdoor temperature should be no more than 7°C. Excessive sudden changes in temperature are harmful for your health.

Horizontal adjustment

Adjust the horizontal direction of the airflow by manually moving the louvers as illustrated on the right. If the unit keeps on operating with the louvers completely turned to the left or to the right side, under high humidity conditions dew drops may appear on the outlet vent.

HINTS FOR CORRECT USE OF THE AIR CONDITIONER

COOL.

HEAT.

About 10˚

About 60˚

COOL.: About 45˚

About 10˚

HEAT.: About 60˚

Multisplit INVERTER Models: HKEL 261 XR, HKEL 351 XR

HOW TO OPERATE THE HEALTH FUNCTION

The "HEALTH" function, when active, improves the air quality. This function is actually operating only during the indoor fan's rotation.

Switch on the air conditioner

Press the ON/OFF button on the remote controller to switch on the air conditioner. On the remote controller's LCD the previous operation mode will be displayed.

Activate the anion generator

To activate the anion generator, press the "HEALTH" button on the remote controller. The remote controller's LCD will display the symbol.

Turning off the anion generator

To turn off the anion generator (no health function), press again the "HEALTH" button on the remote controller. The symbol will disappear from the remote controller's LCD.

When the fan on the Indoor Unit does not work, the symbol lights up, but the anion generator does not release anion.

Note:

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

OPERATION UNDER TIMER MODE

Caution:

■

Before operating the TIMER, adjust the current time on the remote controller. It is possible to program the Unit's start or stop according to one's needs, through the "TIMER ON" and "TIMER OFF" functions.

After turning on the air conditioner, the desired operation mode can be set. Operation mode is displayed on the remote controller LCD.

TIMER setting mode

Every press of TIMER button will result in one section change as follows:

Select "TIMER ON" or "TIMER OFF". The relevant indicator on the remote controller will start flashing.

TIMER hour setting

Press the TIMER "HOUR" buttons. Every press on the button will result in 1 min. increase

of the set period. Set time appears on the display. Every press on the button will result in 1 min. decrease

of the set period. Set time appears on the display.

The maximum delay for programmed start or stop of the air conditioner is 24 hours.

If the batteries of the remote controller are replaced, TIMER settings will be erased. TIMER should be re-programmed if power supply is interrupted.

NOTE: The remote controller is designed to store information, so that the previous TIMER setting can be resumed till next changes or RESET carried out by the user. To resume the previous TIMER

setting, go directly from the step

" to the step # and confirm by pressing the "SET" button.

Programmed Start or Stop of the air conditioner

TIMER resetting

Press repeatedly the TIMER button until no information appears on the remote controller LCD.

Confirm the TIMER setting

After setting correct TIMER hour, confirm by pressing the "SET" button. "TIMER ON" or "TIMER OFF" indicator will light up (it stops flashing) and the time for programmed start or stop of the air conditioner will be displayed. The "TIMER" lamp on the indoor unit will also light up.

BLANK

TIMER ON TIMER OFF TIMER ON-OFF

OFF

SWING

FAN

TEMP

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

OPERATION UNDER TIMER MODE

■

Before operating the TIMER, adjust the current time on the remote controller. The unit's start followed by the unit's stop (or vice versa) can be programmed according to one's needs, through the TIMER ON-OFF function.

After turning on the air conditioner, the desired operation mode can be set. Operation mode is displayed on the remote controller LCD.

TIMER setting mode

Every press of TIMER button will result in one section change as follows:

Select "TIMER ON-OFF". The relevant indicator on the remote controller will start flashing.

"TIMER ON" hour setting

Press the TIMER "HOUR" buttons. Every press on the button will result in 1 min. increase

of the set period. Set time appears on the display.

Every press on the button will result in 1 min. decrease of the set period. Set time appears on the display.

The maximum delay for programmed start and stop of the air conditioner is 24 hours.

Programmed Start and Stop of the air conditioner

Confirm the "TIMER ON" setting

After setting correct TIMER hour, confirm by pressing the "TIMER" button. "TIMER ON" indicator will light up (it stops flashing) and the "TIMER ON-OFF" indicator will start flashing. The time for programmed start of the air conditioner will be displayed on the remote controller.

"TIMER OFF" hour setting

Perfom the same steps as for "TIMER ON" hour setting.

Confirm the "TIMER OFF" setting

After setting correct TIMER hour, confirm by pressing the "SET" button. "TIMER OFF" indicator will light up (it stops flashing). The time for programmed stop of the air conditioner will be displayed on the remote controller.

■ TIMER resetting

Press repeatedly the TIMER button until no information appears on the remote controller LCD.

BLANK

TIMER ON TIMER OFF TIMER ON-OFF

OFF

SWING

FAN

TEMP

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

POWER/SOFT FUNCTION

"POWER" function is suitable when you need rapid heating or cooling. "POWER/SOFT" button, referred to this function, is effective in COOL and HEAT modes (not in AUTO, DRY and FAN modes).

■

POWER operation

To cancel POWER function

Press "POWER SOFT" button twice. POWER function in cancelled and fan returns to original status setting.

Press "POWER/SOFT" button once. The indication appears on the display of the remote controller and operation in POWER mode starts. During operation in POWER mode, fan runs in AUTO speed for 15 minutes, then returns to original status setting.

To activate POWER function

Notes:

• When the air conditioner is operating in POWER mode, sudden changes in temperature may take place, and consequently comfort is reduced.

• Anyway, operation in POWER mode does not last more than 15 minutes, then regular operation is automatically restored.

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

POWER/SOFT FUNCTION

Operation in SOFT mode, more silent, is suitable when silence is needed for rest or reading. "POWER/SOFT" button, referred to this function, is effective in COOL and HEAT modes (not in AUTO, DRY and FAN modes).

■

SOFT operation

To cancel SOFT function

Press "POWER/SOFT" button twice. The indication disappears from the remote controller's display, regular operation is restored and fan speed goes back to original status setting.

To activate SOFT function

Note:

• When the air conditioner operates in SOFT mode, its cooling or heating capacity is reduced, and as time passes by, this could increase the gap between room temperature and set temperature.

Press "POWER/SOFT" button twice. The indication appears on the display of the remote controller and operation in SOFT mode starts. During operation in SOFT mode, fan speed is automatically set to AUTO.

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

COMFORTABLE SLEEP FUNCTION ("SLEEP" MODE)

Its purpose is to improve the comfort degree through progressive controlled increasing or decreasing of the set temperature value. The "SLEEP" mode can be switched on by pressing the special "SLEEP" button on the remote controller.

Description of the "SLEEP" function:

Refer to figure 2.

One hour after "SLEEP" mode start up, the set temperature value is automatically decreased by 2°C. Again, one hour later, the set temperature value is automatically decreased by further 2°C. After that, the air conditioner will keep operating for 3 hours at a constant set temperature value, Afterwards the set temperature value will be increased by 1°C and finally the operation will stop after 3 hours. This gradual reduction of the set temperature value allows to mitigate the uncomfortable effects of a sudden room temperature increasing for example during the night-time.

In Heating mode ("HEAT"):

When in Automatic mode, the "SLEEP" function will be activated within the actual operating mode which has been automatically selected by the microcomputer.

In "AUTO" (Automatic) mode:

During operation in "FAN" mode, the "SLEEP" function is not available.

In "FAN" (Fan only) mode:

The "SLEEP" function lasts 8 hours. If the "SLEEP" function is already set and after that the "TIMER ON" function is also set, the last setting will erase the previously set function and the air conditioner will not be switched off. If the programmed "TIMER ON" hour and the switching off hour for the "SLEEP" function are the same, the air conditioner will be switched off after 8 hours anyway.

Note:

In Cooling mode ("COOL"):

Refer to figure 1.

One hour after "SLEEP" mode start up, the set temperature value is automatically increased by 1°C. Again, one hour later, the set temperature value is automatically increased by further 1°C. After that, the air conditioner will keep operating for 6 hours at a constant set temperature value and finally the operation will stop after 3 hours. This gradual increasing of the set temperature value allows to mitigate the uncomfortable effects of a sudden room temperature reduction for example during the night-time.

OFF

SWING

FAN

TEMP

A U T O

MODE

HEALTH

CLOCK

TIMER

SET

POWER/SOFT

SLEEP

LOCK

CODERESET

˚C

"SLEEP" operation starts "SLEEP" operation stops

About 6 hours

1 hour

+ 1˚C

Temp. setting STOP

- 2˚C

About 3 hours

1 hour

3 hours

Fig.1

Fig.2

Temp. setting STOP

+ 1˚C

- 2˚C

"SLEEP" operation starts "SLEEP" operation stops

COOLING and DRY modes

HEATING mode

Emergency Operation and TEST Mode

• Use the Emergency Operation mode only when the remote controller is defective or lost.

• When the Emergency Operation switch is shortly pressed, a "Beep" sound is heard, indicating that the unit has entered the requested mode.

• The system selects operation in Cooling or Heating mode automatically, according to the room temperature as follows:

Emergency Operation:

• When the system runs in Emergency Operation, the "DRY" mode cannot be selected.

Test mode switch is the same as Emergency switch.

• Use this switch in the test operation only, when the room temperature is higher than 16°C; do not use the test mode for normal operation of the air conditioner.

• Press the test operation switch for more than 5 seconds. After the "Beep" sound is heard twice, release your finger from the switch: operation in Cooling mode will start, at High fan speed.

• After 30 minutes, operation in Test mode ends automatically.

TEST Mode:

• Press once more the switch on the Indoor Unit or use the remote controller: a "Beep" sound is heard and running in Emergency Operation or TEST mode is terminated.

• Regular operation of the air conditioner is restored by using the remote controller.

How to stop Emergency operation or TEST mode:

Beep

Beep...Beep

OPERATION WITHOUT THE REMOTE CONTROLLER

Room Temp. Selected Mode

Set Temp. Timer Fan Speed

> 23°C

< 23°C

Cooling 26°C

23°C

Continuous Automatic

AutomaticContinuous

Heating

Multisplit INVERTER Models: HKEL 261 XR, HKEL 351 XR

Frigobox HKEL 261, HKEL 351, HCNL 521, HKEL 261 XR, HKEL 351 XR Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual