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4 -W a y v a lv e

In d o o r fa n

O u td o o r fa n

4 8 0 P

P M V

P M V r u n n in g

4 m in s w ith 4 8 0 P

C o m p r e s s o r

1 0 S

3 0 S

T im e A

1 0 S

n o lo n g e r th a n 1 0 m in

C o o l- F 9

A n ti c o ld w in d

8.4.5 Auto-mode

This mode can be chosen by remote controller and the setting temperature can be changed between
17~30

℃

In auto mode, the machine will choose cooling, heating or fan-only mode according to the difference
between T1 and TS.

For all models:

T1-TS

Running mode

T1-TS

＞

℃

Cooling

-2< T1-TS

≤2

℃

Fan-only

T1-TS

≤-2

℃

Heating

Indoor fan will run at auto fan of the relevant mode.

The louver operates same as in relevant mode.

If the machine switches mode between heating and cooling, the compressor will keep stopping for 15

minutes and then choose mode according to T1-Ts.

If the setting temperature is modified, the machine will choose running function again.

8.4.6 Forced operation function

8.4.6.1 Enter forced operation function:

Press the touch button continually, the AC will run as below sequence:

Forced auto→Forced cooling→Off

When the machine is off, pressing the touch button will carry the machine to forced auto mode, after this, if

pressing the button once again, the machine will turn into forced cooling mode.

In forced cooling mode, pressing touch button will turn off the machine.

8.4.6.2 In forced operation mode, all general protections and remote control are available.

8.4.6.3 Operation rules:

Содержание 38QUS014DS2 series

Страница 1: ...SUPER INVERTER SERIES MULTI TYPE Service Manual 2018...

Страница 2: ...ressure Duct 30 7 Operation temperature range 31 8 Electronic function 32 9 General information of Outdoor Units 42 10 Features 43 11 Dimensions 44 12 Refrigeration Cycle Diagram 45 13 Wiring diagram...

Страница 3: ...The specifications designs and information in this book are subject to change without notice for product improvement...

Страница 4: ...act Super slim cassette Console 15C A5 Duct A6 Duct ODU 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 38QUS018DS2 2 42QTD012D8S 42QZA018DS 42QHC012D8S 42QSS012D8S 38QUS021DS3 42QTD018D8S 42QHC018D8S 42QSS018D...

Страница 5: ...t damage the decoration The panel size is 647 50 647mm The hooks are designed in the four corners of the body which can save installation space Electric control box built in design The E box is simply...

Страница 6: ...3 Air passage function Reserves the space for air outlet from the side of indoor unit It s availed to connect air duct from the two sides to the nearby small rooms Dimension 75mm Fresh Air...

Страница 7: ...or from rear to the bottom in order to matching the installation condition Fresh air intake function Install one duct from the reserved fresh air intake to outdoor Continually inhale the fresh air to...

Страница 8: ...ctly remove two bolts and then replace the motor or centrifugal fan easily Reserved remote on off and central control ports Reserved remote on off ports and central control ports can connect the cable...

Страница 9: ...door unit can be controlled by wired controller There is a display board with a receiver in the E box Move out the display and fix it in other place even in the distance of 10m The unit will realized...

Страница 10: ...r floor standing or lower wall applications as a floor standing floor model it can be semi or fully recessed without loss of capacity 5 High efficiency filter built in Formaldehyde nemesis filter acti...

Страница 11: ...nal 2 Fresh air intake function Fresh air fulfills air quality more healthy and comfortable Ventilation motor is optional to increase the effect of fresh air 3 Optional ionizer generator Ionizer gener...

Страница 12: ...ructure more convenient to repair or replace the draining pump Built in draining pump to make sure condensed water drain out reliably 6 Terminals for alarm lamp and long distance on off controller con...

Страница 13: ...possible due to a structure such as one lighting 3 Two direction auto swing vertical horizontal and wide angle air flow Air flow directional control minimizes the air resistance and produces wilder ai...

Страница 14: ...11 5 Easy operation 6 Remote control and optional wired control method...

Страница 15: ...4 in s ta ll h a n g e r B o d y W irin g c o n n e c tio n p o rt D ra in p ip e 3 2 F re s h a ir in ta k e 6 5 5 7 0 5 4 5 5 7 0 5 2 3 2 6 0 6 4 7 6 4 7 5 0 1 5 0 D is trib u tio n d u c t 1 7 0 2...

Страница 16: ...e L i q u i d s i d e M W 1 W 2 H 1 H 2 2 5 D ra in c o n n e c tin g p ip e fo r p u m p T e s t m o u th T e s t c o v e r F re s h a ir in ta k e 2 5 D ra in p ip e 2 5 D ra in p ip e Note standard...

Страница 17: ...14 3 3 Console 1 6 D ra in p ip e 1 9 5 H a n g in g a rm 7 0 0 6 0 0 2 1 0...

Страница 18: ...0 6 8 0 1 3 6 1 2 6 9 1 1 9 6 1 3 2 A A B A A B A A B A B S e rv ic e h o le fo r d ra in in g p u m p F re s h a ir in ta k e 7 5 5 5 8 0 8 0 4 in s ta ll h a n g e r G a s s id e L iq u id s id e E...

Страница 19: ...2 2 2 C 1 2 0 2 4 0 1 2 0 1 4 0 2 3 3 W irin g c o n n e c tio n p o rt 2 0 4 9 4 F re s h a ir in ta k e D ra in d is c h a rg e p o rt R e frig e ra n t p ip e h o le H a n g in g a rm D Capacity KB...

Страница 20: ...17 3 6 Ducted A5...

Страница 21: ...18 A6...

Страница 22: ...19 3 7 Hi wall 3 7 1 Indoor Unit Model KBtu h W D H 42QHC007D8S 42QHC009D8S 730 192 291 42QHC012D8S 812 192 300 42QHC018D8S 973 218 319 42QHC024D8S 1082 225 338...

Страница 23: ...ce Space unit mm 4 1 Four way cassette compact 4 2 Duct Ensure enough space required for installation and maintenance All the indoor units reserve the hole to joint the fresh air pipe The hole size as...

Страница 24: ...Drain sid Necessary room 2500mm outlet intle t outlet ground Chart1 A No te Nut Body Ceiling 880mm Hook B Panel Chart 2 B 180 00 24000Btu h R 22 Series A 26 0mm 36000 48000Btu h R 22 Series A 330mm No...

Страница 25: ...22 4 5 Ceiling Floor Type 4 6 Hi wall...

Страница 26: ...23 5 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 2 38QUS018DS2...

Страница 27: ...24 38QUS021DS3 38QUS027DS3...

Страница 28: ...25 38QUS028DS4 38QUS036DS4...

Страница 29: ...26 38QUS042DS5 42QHC007D8S 42QHC009D8S 42QHC012D8S 42QHC018D8S 42QHC024D8S 16022000A83297...

Страница 30: ...27 42QTD007D8S 42QTD009D8S 42QTD012D8S 42QTD018D8S 42QTD009DS 42QTD012DS 42QTD018DS 42QTD024DS...

Страница 31: ...28 42QSS012DS 42QSS007D8S 42QSS009D8S 42QSS012D8S...

Страница 32: ...29 42QSS018DS 42QSS024DS 42QZA009DS 42QZA012D8S 42QZA018DS...

Страница 33: ...30 6 Static Pressure A5 Ducted...

Страница 34: ...in safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure th...

Страница 35: ...outdoor unit T3 Coil temperature of outdoor heat exchanger T4 Outdoor ambient temperature T5 Compressor discharge temperature Ts Setting temperature 8 2 Icon explanation on indoor display board 8 2 1...

Страница 36: ...m cassette 8 2 5 Ceiling floor 8 2 6 15C 8 3 Main Protection 8 3 1 Three minutes delay at restart for compressor 8 3 2 Sensor protection at open circuit and breaking disconnection 8 3 3 Indoor fan del...

Страница 37: ...s when fan motor restart continuously the unit will stop and the LED will display the failure 8 3 5 Inverter module protection The Inverter module has a protection function about current voltage and t...

Страница 38: ...hen the compressor is running the indoor fan is controlled as below Setting fan speed Actual fan speed H H H G A H H B C M M M Z D M M M E F L L L D G L L L H I T1 Td F L L L L D H H H H G M M M M Z T...

Страница 39: ...3 4 The outdoor fan operates the same as in cooling mode 8 4 4 Heating mode 8 4 4 1 Outdoor fan running rules T 4 E D C B A A 8 4 4 2 Indoor fan running rules For all models In heating mode indoor fan...

Страница 40: ...run in super breeze Anti cold wind function has the priority 8 4 4 5 Defrosting mode Condition of defrosting AC will enter the defrosting mode according to the value of temp of T3 and the value range...

Страница 41: ...ates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to T1 Ts If the setting temperatu...

Страница 42: ...ly when reaching the setting on time 8 4 7 6 The timer function will not change the AC current operation mode Suppose AC is off now it will not start up firstly after setting the timer off function An...

Страница 43: ...operate with the last mode Otherwise the entire system stop operating including the pump and LED remain alarming after 3 minutes 8 4 11 Follow me optional 1 If the indoor PCB receives the signal which...

Страница 44: ...ff No No No No No No mode conflict Yes Mode conflict 2 Unit action In case of one Indoor unit working in cooling mode or fan mode and another indoor unit is set to heating mode the indoor unit working...

Страница 45: ...D22UEZ 38QUS014DS2 2 800x333x554 ASN140D21UFZ 38QUS018DS2 845x363x702 ASM135D23UFZ 38QUS018DS2 2 800x333x554 ASM135D23UFZ 38QUS021DS3 845x363x702 ASM135D23UFZ 38QUS027DS3 845x363x702 ATF235D22UMT 38QU...

Страница 46: ...e valves and prevents water from dripping 4 way valve control It is only operated in the heating operation mode except defrosting operation Outdoor unit Power relay control Hydrophilic aluminum fin An...

Страница 47: ...mm W D H W1 A B 38QUS014DS2 2 38QUS018DS2 2 800 333 554 860 514 340 38QUS021DS3 845 363 702 923 540 350 38QUS027DS3 845 363 702 923 540 350 38QUS028DS4 38QUS036DS4 946 410 810 1034 673 403 38QUS042DS...

Страница 48: ...c u m u la to r T 2 B A E v a p o ra to r te m p s e n s o r o u tle t T 2 B B 12 2 Refrigeration circuit drawing of inverter 1 drive 3 type L IQ U ID V A L V E A G A S V A L V E A H E A T E X C H A...

Страница 49: ...p o ra to r te m p s e n s o r o u tle t T 2 B B T 2 B C T 2 B D 12 4 Refrigeration circuit drawing of inverter 1 drive 5 type L IQ U ID V A L V E A G A S V A L V E A H E A T E X C H A N G E E V A P O...

Страница 50: ...47 13 Wiring diagram 38QUS014DS2 38QUS014DS2 2 38QUS018DS2 38QUS018DS2 2...

Страница 51: ...48 Note S 1 S 2 are used in other type of models They don t need to be connected in multi models 38QUS021DS3...

Страница 52: ...49 38QUS027DS3 38QUS036DS4...

Страница 53: ...50 38QUS042DS5...

Страница 54: ...means two indoor unit shall not operate simultaneously due to performance reduction 14 3 Indoor unit combination for 38QUS021DS3 One Unit 7 7 7 9 9 7 7 7 9 9 9 9 7 9 9 12 7 7 9 12 7 12 9 18 7 7 12 18...

Страница 55: ...nit 38QUS036DS4 1 Two Unit Three Unit 14 7 Indoor unit combination for 38QUS042DS5 One Unit 7 7 7 9 9 12 18 7 7 7 7 9 9 7 12 18 9 9 18 9 18 18 7 7 7 7 7 7 9 9 7 7 12 18 7 9 9 18 7 9 18 18 9 9 9 12 9 9...

Страница 56: ...one Note H 0 5 height of outdoor unit Model Noise Power dB A Noise level dB A 38QUS014DS2 63 56 38QUS014DS2 2 64 56 38QUS018DS2 66 59 5 38QUS018DS2 2 65 57 38QUS021DS3 66 58 38QUS027DS3 68 61 38QUS028...

Страница 57: ...on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 16 1 3 Pipe length and the elevation Maximum piping length and height difference 1 drive 2 1 driv...

Страница 58: ...e first time Air and moisture in the refrigerant system have undesirable effects as below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refri...

Страница 59: ...lease check if there are some leakage points Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5...

Страница 60: ...harge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the...

Страница 61: ...e careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the char...

Страница 62: ...ervice port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve to...

Страница 63: ...position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 4 Close the valve Low side on the charge set...

Страница 64: ...ow side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately...

Страница 65: ...splay function In standby the LED displays In compressor operation the LED display the running frequency In defrosting mode The LED displays dF or alternative displays between running frequency and dF...

Страница 66: ...indoor unit evaporator outlet temp T2BA If the temp is lower than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital display tube will show 70 If the indoor...

Страница 67: ...ncy limit caused by T3 Bit2 Frequency limit caused by T5 Bit1 Frequency limit caused by current Bit0 Frequency limit caused by voltage 43 Average value of T2 Sum T2 value of all indoor units number of...

Страница 68: ...2 minutes the AC will stop and display the failure 17 5 6 High condenser coil temp protection T 3 R e s u m e O ff D e c re a s e H o ld 17 5 7 Outdoor unit anti freezing protection When T2 4 for 250...

Страница 69: ...l return 17 5 9 Low outdoor ambient temperature protection When compressor is off T4 is be lower than 35 for 10s the AC will stop and display LP When compressor is on T4 is be lower than 40 for 10s th...

Страница 70: ...otection 2 Too low ambient temperature protection 4 Inverter compressor drive protection 5 Mode conflict 6 Low pressure protection of compressor 7 O on X off flash at 2Hz For other type Malfunction Er...

Страница 71: ...ction E8 Outdoor fan speed has been out of control F1 No A Indoor unit coil outlet temperature sensor or connector of sensor is defective F2 No B Indoor unit coil outlet temperature sensor or connecto...

Страница 72: ...it 18 3 1 1 Indoor EEPROM malfunction Yes Replace the indoor main PCB Power off then restart the unit 2 minutes later EEPROM An electrically erasable programmable read only memory whose contents can b...

Страница 73: ...remote controller Is all indoor unit display Turn off the all indoor units Is IPM power LED or operating LED lamp On Refer PIC2 Yes A Is all the wiring between terminal and Indoor PCB connect ok No Y...

Страница 74: ...IPM or outdoor main PCB Self Check Power Operating Self Check Operating els Pic 2 IPM or outdoor main PCB Pic 1 check the voltage of N to S Vs is it moving alternately between positive value and negat...

Страница 75: ...72 PIC3 Main board LED when power on and unit standby PIC 4 check point button Press 1 time for check how many indoor units are connected...

Страница 76: ...eck the wiring of fan motor Are all the connections good No Yes No Correct the connections Correct the connections No Replace the fan motor Replace the fan motor Yes Yes Replace the main PCB Replace t...

Страница 77: ...type NO Color Signal Voltage 1 Red Vs Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V For other types NO Color Signal Voltage 1 Red Vs Vm 192V 380V 2 3 Black...

Страница 78: ...ormal Yes 18 3 1 5 Full water malfunction If the water level switch is inserted well If the water level switch is inserted well No Insert the water level switch well Insert the water level switch well...

Страница 79: ...nel is defective F1 Displayed F1 Displayed Up down panel is defective Up down panel is defective Retry if panel can up and down normally Retry if panel can up and down normally Check the wiring of lef...

Страница 80: ...lace the outdoor main PCB Replace the outdoor main PCB Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later EEPROM An electrically erasable programmable read...

Страница 81: ...IPM board light Check the signal wire between the IPM board and the main board is it connected good Reconnect and retry Is error still display Replace IPM board and then check whether the system can r...

Страница 82: ...240VAC Check the power supply Check whether the voltage of IPM board P and N is normal DC277 356V for 18 27KBtu h DC277 410V for 36 42KBtu h Replace bridge rectifiers and then check whether the system...

Страница 83: ...the fan are tighten Check the wiring of fan motor Are all the connections good Check the wiring of fan motor Are all the connections good No Yes No Correct the connections Correct the connections No R...

Страница 84: ...mbient temperature is higher than 50 Check whether the outdoor ambient temperature is higher than 50 No Stop the unit Stop the unit Yes Check if the outdoor unit ventilation is good Check if the outdo...

Страница 85: ...ure protector is broken Whether the low pressure protector is broken Check whether the outdoor ambient temperature is too low Check whether the outdoor ambient temperature is too low No Stop the unit...

Страница 86: ...temperature is higher than 50 No Stop the unit Yes Judge 3 Check whether the outdoor unit is bad ventilation No Make the outdoor unit ventilate well Yes Judge 5 The refrigerant pipe is blocked No Let...

Страница 87: ...ring diagrams Measure the resistance value of compressor discharge temp sensor If the value is not normal is normal refer to the Appendix 2 Measure the resistance value of compressor discharge temp se...

Страница 88: ...door unit ventilation is good Check if the outdoor unit ventilation is good Yes Make the outdoor unit ventilate well Make the outdoor unit ventilate well Check whether the heat exchanger is dirty Chec...

Страница 89: ...sor check whether the system can work normally Check whether the lines in E part box are connected tightly Yes Connect it tightly check ok or not No No Yes No Replace the bridge rectifiers Check wheth...

Страница 90: ...K 18K 24K Cassette Ducted Indoor fan motor ZKFP 124 8 2 ZKFN 160 8 1 2 Outdoor unit Model 1x2 14k 1x2 18k 1x3 21K 1x3 27K Compressor ASN108D22UEZ ASM135D23UFZ ASM135D23UFZ ATF235D22UMT Outdoor fan mot...

Страница 91: ...measure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 s...

Страница 92: ...1 34105 116 0 40060 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 37956 1 37 1988 39 5 39689 79 1 21330 119 0 36954 0 35 2024 40 5 17519 80 1 17393 120 0 35982 1 33...

Страница 93: ...9 5 234 9 35 35 78 75 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 174 0 180 9 40 29 15 80...

Страница 94: ...Compressor checking Measure the resistance value of each winding by using the tester Position Resistance Value ASN108D22UEZ ASM135D23UFZ ATF235D22UMT ATF310D43UMT Blue Red 1 57 20 1 75 20 0 75 20 0 6...

Страница 95: ...lytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resi...

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