Soleus Air KFHHP-22 User's Manual
Contents
1. 23 swan Components and part list of indoor unit No Description Part Code Qty KFHHP 22 ID 6 LowerGudelouwer 02563 8 Nrlower 1050200 15 9 Swngleer 1058200 3 Bearing Ambient Temperature Electric Box pe Plate of 54535045 Evaporator 39 Upper Shield Cover for 01592033 i Electric Box 24 Exploded view of outdoor unit KFHHP 22 OD tee dela vere ge pu SEN Lag Xe Sy ji JJ 7 WEP a AS v Ves ly Y W 7 CD sped 0 DM Oo e z 7 e NS a eX ES 7 4 9 iS 25 09918 Components and part list of outdoor unit KFHHP 22 OD 15018704 8 CondenserAssy i TempSensorSuppt 4218086 i 18 PcBSup2. front case air guider 7 filter dispaly board manual switch E remote control l connecting pipe and calbe display receiver heating cooling AAA A e e AAA aL AAAA Outdoor unit air outlet grill O Overall and installation dimension 4 1 326 left tube exit sign left Overall and installation dimension of indoor unit KFHHP 22 ID air inlet grill 1178 2 top view right tube exit sign 220cm rear view Ceiling Unit mm 220cm right Overall and installation dimension of outdoor unit KFHHP 22 OD C 993 C SN unit mm N N N N SN N N over RS N N bolt 9 53 _ nutGgggg 242 wrench Electrical diagram KFHHP 22 OUT
3. Lh Jh Above Lh Srt emp uu In Auto OR fan mode the setting temp will not change 6 1 3 5 Toggle switch 1 If memory function is on when unit is power on and start operation and toggle switch is in STOP position the unit will operates with STOP position or else unit starts under power off memory There is memory function with AUTO RUN STOP position TEST position is without memory function 2 If there is no memory function unit will operate under previous switch position When toggle switch is on AUTO unit operates in AUTO mode and air swing on if there is signal of remote control then unit operates according to signal When toggle switch is on TEST indoor fan runs in high speed and air swing on indoor unit sends out signal of Cool mode on 16 C and 30 C ambient temperature to outdoor unit If malfunction of indoor or outdoor temp sensor is detected buzzer will give out beep to alarm If there is signal of remote control unit operates as per remote control and indoor unit sends remote control signal to outdoor unit 6 1 3 6 Communication failure Communication failures happen if there is no correct signal received for 3 minutes 6 1 3 7 Buzzer control When unit is power on or receiving remote control signal or the toggle switch is pressed the buzzer will give out a beep 6 1 3 8 Power off memory function 1 contents of memory mode AUTO COOL DEHUMIDIFYING HEATING etc setting fan speed setting temperature Timing etc
4. can be removed Refer to figure 7 23 capillary Disassemble valves Unsrew the two screws fixing the big valve unsoldering the soldering points between the big valve and air return duct remove big valve When unsoldering use wet cloth to wrap the big valve completely to prevent it from being harmed by high temperature Unscrew the 2 screws fixing small valve unsolder the joint points between small valve and fork type pipe remove small valve Refer to figure 7 24 small valve screws big valve 7 24 Disassemble compressor Unsolder the soldering points between the pipes and compressor unscrew the three nuts with washers at the foot of compressor take out the compressor Refer to figure 7 25 compressor Figure 7 25 22 Exploded view components amp part list 8 1 indoor unit KFHHP 22 ID 0 c e 251
5. 4 times closing down for blink 4 times communication failure with blink 4 times nominal overcurrent protection NEC module cooling heating blink 5 times closing down for blink 5 times communication failure with blink 5 times max cooling heating overloading protection computer blink 6 times cooling antifreezing stop blink 6 times failulre of outdoor ambient blink 6 times medial cooling heating temp sensor blink 7 times sensor malfunction stop blink 7 times failure of outdoor blink 7 times min cooling heating tube temp sensor blink 8 times closing down for blink 8 times failure of outdoor blink 8 times unit off communication gas discharge failure including indoor temp sensor unit and NEC driving module blink 12 times closing down for IPM blink 9 times communication failure blink 9 times low pressure and can t overheating protection sent from indoor resume blink 10 wrong parameters sent to times NEC driver unit closes down blink 11 IPM temp sensor failure times D14 meaning D15 meaning D16 meaning blink 1 time frequency demultiplying blink 1 time frequency limiting for high on Be receiving or sending for high temp of gas temp of gas discharged computer data discharged blink 2 times frequency demultiplying blink 2 times frequency limiting of off receiving or sending for overcurrent protection overcurrent protection computer data finished blink 3 times frequency demul
6. E 2 gt 5 i O 5 e F 2 E 5 c z c ec c C a S 2 se 3 E sy 2 a B z 1 3 2 Q e z 3 5 E amp e Damage of outdoor main control board Burn out or broken wire of indoor fan motor Wrong wiring Circuit break or damage of fan motor capacitor Check the circuit according to circuit diagram Replace the main control board Replace the power module Adjust the set temperature Replace the fan motor Wire according to the circuit diagram Replace the main control board Replace the fan capacitor Replace the compressor Re fasten the connection Check if input is 320V If not replace the rectifier Replace the power module Cool the compressor for 30 min before running Wire according to the circuit diagram Replace the outdoor main control board Repair or change the fan motor Wire according to the circuit diagram Replace the indoor main control board Improper setting of temperature Adjust the set temperature Whether cooling heating load Check the estimated load of cooling heating is nroner Vacuumize after leakage detection Leakage or shortage of refrigerant and leakage repair Charge refrigerant according to specification Leakage occurs between high and Replace the compressor low pressure inside compressor refrigerant flow Malfunction of four way valve im Replace the four way valve Malfunc
7. button 4 Min heating Med heating Nominal heating Max heating times in succession within 3 seconds Press any button to exit Cooling mode temperature signal sent to outdoor unit is compulsively set 16 C when cooling capacity is min med nominal or max Heating mode temperature signal sent to outdoor unit is compulsively set 30 C when heating capacity is min med nominal or max Notice when test is started relevant indicating lamp blinks quickly If there is malfunction it will be displayed directly 9 Controller function of outdoor unit 6 1 1 Parameters of temperature Exhausting gas temperature of outdoor unit Tex Ambient temperature of outdoor unit Tam 6 1 2 Fundermental function of system In wichever mode once compressor start up it can only be close down 6 minutes later at least not including malfunction protection mode switch which requires compressor to stop Once compressor closes down it can only restart 3 minutes later at least including mode switch stop by remote control etc compressor starts up after outdoor motor runs for 5 seconds 6 1 2 1 Cool mode 6 1 2 1 1 Working conditions and process of cooling when compressor in closing down state and Tin am Tset 20 5 Cif unit start in cooling mode then cooling mode operates outdoor fan motor and compressor start to run The frequency of compressor can be adjusted automatically according to need of cooling power by micro computer during cooling pro
8. continuous times of protection compressor will stop and can not restart by itself It can only be restart by pressing ON OFF button In operation if operating time of compressor is over 7 minutes the number of times will be zero 6 1 3 7 overheating protection of module When IPM temperature is too high frequency of compressor will be demultiplied or limited Wen IPM temperature is beyond maximum compressor closes down The whole unit can only restart when IPM temperature returns to norm and compressor has been stopping for 3 minutes If 3 times of IPM temperature protection happens in 1 hour compressor will stop and can not restart by itself It can only be restart by pressing ON OFF button 6 1 3 8 overloading protection of compressor When overloading switch of compressor operates it will closes down as if room temperature reaches set value Whole unit can only restart when compressor has been stopping for 3 minutes and overload switch resets 6 1 3 9 PFC protection When air conditioner starts in cooling heating or dehumidifying mode compressor starts and frequency rises to 30hz PFC protection is on after it runs for 30s Compressor closes down in whatever condition PFC and compressor closes down at the same time PFC protection signal will be detected once after PFC starts when PFC protection is on PFC and compressor closes down at the same time PFC restores automatically 3 minutes later after failure happens 6 1 3 10 Tes
9. delay malfunction of gas discharge sensor too high outdoor temperature Handling process refer to the malfunction analysis in the above section 2 low voltage overcurrent protection Possible reasons sudden drop of power supply or overloading 3 Communication malfunction Handling method check if communication signal cable is connected reliably 4 temp sensor open or short circuit Handling method check whether sensor is normal connected with the corresponding position on the controller and if damage of lead wire is found 5 compressor overload protection Possible reasons insufficient or too much refrigerant blockage of capillary and increase of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunction of protector Handling method adjust refrigerant amount replace the capillary replace the compressor use universal meter to check if the contactor of compressor is fine when it is not overheat if not replace the contactor 6 system malfunction i e overload protection When tube temperaturec Checking the temperature of outdoor heat exchanger when cooling and checking temperature of indoor heat exchanger when heating is too high protection will be activated Possible reasons outdoor temperature is too high when cooling insuffient outdoor air circulation refrigerant flow malfunction 7 module protection Handing method if module malfunctions and can not be r
10. frequency reaches 90hz When the defrosting is over the frequency will drop until it reaches 6Ohz 50s later 4 way valve and outdoor fan motor will be power on Then frequency of compressor will rise to the required But indoor fan motor have to start 2 minutes later at least If compressor closes down for malfunction in heating mode indoor motor will only exhausting remaining heat 6 1 3 Universal protection function of cool heating dehumidifying and auto mode 6 1 3 1 Overloading protection function When over high temperature of tube Ttube is detected frequency of compressor will be demultiplied or limited When Ttube is beyond maximum compressor stops until Ttube restrores to normal value If there are 6 continuous times of over high Ttube protection compressor will stop and can not restart by itself It can only be restart by pressing ON OFF button In operation if operating time of compressor is over 7 minutes the number of times will be zero cleared 6 1 3 2 Time delay protection of compressor Compressor will restart in 3 minutes after it closes down 6 1 3 3 High exhausting gas temp protection of compressor When over high temperature of gas exhausted Tex is detected frequency of compressor will be demultiplied or limited When Tex is beyond maximum compressor stops until Ttube restrores to normal value If there are 6 continuous times of over high Tex protection compressor will stop and can not restart by itself It can o
11. if unit was on when power off minutes is delayed for indoor unit to send signal of starting to outdoor unit 3 When power is on again unit will operate in previous mode before power off If there was no timer function in the last remote control dictation then unit will memorize the last remote control dictation and operate according to the previous mode 5 Ifthere was timer function in the last remote control dictation and system was power off before the time set unit will memorize the last timer function and it will time from the begin of restarting 6 If there was timer function in the last remote control dictation and system was power off at the time set unit will operate in the mode before power off but timer won t be on 6 1 3 9 Failure detect of indoor temp sensor When unit is defrosting temp sensor malfunction is not under detection In other status temp sensor malfunction of indoor ambient and tube are under malfunction If the temperature is not between the minimum and maximum for continuous 30s signal of error will be sent out When indoor temp sensor failures it will send signal of closing down unit to outdoor unit 6 1 3 10 Method for testing min med nominal max cooling or heating Temp set in remote control 16 17 18 19 In Cool mode press Sleep button 4 Min cooling Med Cooling Nominal cooling Max cooling times in succession within 3 seconds Temp set in remote control 27 28 29 30 In Heat mode press Sleep
12. 30 Indoor fan motor runs at low setting speed when compressor stops because of malfunction protection indoor motor still operates at low speed 6 1 2 3 Fan mode Temperature setting range is 16 30 C Indoor fan can operates at selected speed of HIGH MED LOW and AUTO 6 1 2 4 Heating mode Temperature setting range is 16 30 C sending out remaining heat after indoor fan runs at setting speed for 605 anti cold air indoor fan will start in 2 minutes at latest when compressor stops at setting temp indoor fan motor operates in discharging remaining heat when compressor stops because of malfunction protection indoor fan runs in discharging remaining heat on receiving signal of defrosting indoor fan motor stops when defrosting ends fan motor runs under anti cold air status 6 1 2 5 Auto mode In this mode indoor fan will run in Cooling heating air discharging mode according to the change of ambient temperature And the protection function is the same as under Cooling Heating mode 6 1 3 Other control 6 1 3 1 auto control of speed of indoor fan indoor fan runs automatically at HIGH MED LOW speed according to the change of ambient temperature The interval of speed switching is 3 minutes and 30 seconds at least When in dehumidifying mode fan runs at setting low speed 6 1 3 2 when the power is on the air guide louver will turns to A position counter clockwise and closes the air outlet went after the unit star
13. SOLEUSAIR Introduction and features Technical Service Manual for 13SEER DC INVERTER 24K KFHHP 22 208 230 R410A Specifications and technical parameters KFHHP 22 COOLING HEATING Rated Voltage 208 230V Total Capacity W 23800 22000Btu 27000 24200Btu eee Medel of Indoor Uni A in Indoor Unit i 2 ion in EM CO Ib Output of Swing Motor W i Net Weight Gross Weight Ib 38 6 53 KFHHP 22 0D C SRZTAGHTA Rotary OutputofFanWotorW oo o ooo uei Ti Moisture Protection Permissible Excessive Operating Pressure for the Discharge Side MPa Permissible Excessive Operating Pressure for the Suction Side MPa Sound Pressure Level dB A Dimension W D H in iN Co IP24 59 58 37 4X16 22X33 07 43 3X17 7X35 6 141 1 152 1 R410a 84 Length ft 26 25 Outer 09 52 3 8 0768 40 100 he data above is subject to change without notice Please refer to the nameplate of the unit cover of electrical box manual switch Components name Indoor unit front panel gs 7 TR
14. TUBE _OUTROOM _ EXHAUST TEM SENSOR TEM SENSOR TEM SENSOR BN WH ROOM TUBE BL YE i TEM SENSOR TEM SENSOR BK i AGLI AGN ACA ACLS RTZ DISPLAY i AC L1 BN LIS BN l ace AP3 MEG pz BL AC N MC lt AC N x103 X103 X102 X108 m i YEGN Y GN YEGN TRIN eese BK N PCB DATA 5 n 4V X101 BL L A TR OUT dido POWER 208 230V X104 T X105X109 X116 AC L1 4V i C v X112 X111 M L l AP2 1 OUTTUBE OUTDOOR EXHAUST ISHIELDING BOX CN4 TET AC L1 FAN L Y C c wH lent tenek EVAPORATOR E 3 4 6 2 OUTDOOR UNIT The diagram above is subject to change without notice Please refer to the diagram label the unit Function manual operating method of controller 6 1 Function manual 6 1 1 Temperature parameters Room set temperatures Tset Room ambient temperatures Tin amb 6 1 2 Fundamental function 6 1 2 1 Cooling mode temperature setting range is 16 30 C under this mode fan motor of indoor unit operates at setting speed when compressor stops because of malfunction protection fan motor of indoor unit still operates at setting speed 6 1 2 2 Dehumidifying mode Temperature setting range is 16
15. b 3 C lt Tset 0 5 if unit start in heating mode then heating mode operates Outdoor fan motor compressor and 4 way valve start to run The frequency of compressor can be adjusted automatically according to need of heating power by micro computer 10 during heating process when Tset z Tin amb 3 C lt Tset 2 C the compressor operates in low frequency during heating process when Tin amb 3 gt Tset 2 C then compressor stops running And outdoor fan motor stops in 60s Notice It will take 2 minutes to power off in 4 way valve when the unit closes down in heating mode or switch from heating mode to other modes In this mode there is power supply for reversing valve Range of temperature setting is 16 30 C 6 1 2 4 2 Controlling principles of outdoor fan motor If Tout amb x 19 C the fan motor runs in high speed If Tout amb 21 C the fan motor runs in low speed If 19 C Tout amb 21 C the fan motor runs in original speed After fan motor runs in compulsive high speed for 3 minutes in starting up then the speed will be controlled by the set principles 6 1 2 4 3 Defrosting process When defrosting conditions is detected if compressor run in high frequency then frequency will be demultiplied first Later compressor stops running and indoor fan motor stops Outdoor fan motor stops in 50s later 4 way valve will be power off in 45s The defrosting functions operates when compressor restart in 55s and
16. ble water tray Unloose the clasp fixing water tray lift and disassemble it Refer to figure 7 7 hook Disassemble evaporator assy Unscrew 2 screws on the clamp and remove the clamp 1 7 unscew the 2 screws fixing evaporator on left and right side ake out the evaporator by you hand and push it backward to let out the side clasps from the groove Take out the evaporator carefully protect the connecting pipe Refer to figure 7 8 7 9 7 10 1 8 Screws 17 Disassemble motor Unscrew the screws fixing press plate and take out press plate Unscrew the one M4 screws and remove the motor Refer to 7 11 screw screws cross flow fan DEB Disassemble cross flow fan fan bearing take out the bearing on the left and remove the cross flow fan Refer to 7 12 18 eae Disassembly procedures for outdoor unit Operating procedures pictures Disassemble front side plate mentee viele unsrew the 4 srews around the front side plate and take off it T Refer to figure 7 13 Disassemble top cover 13 Unsrew the srews around the top voer plate lift the top cover and remove it Refer to figure 7 14 WENTEN I mT Y N T Y 1 7 2 3 Disassemble rear grill 7 14 Unscrew the 4 self tapping screws on rear side plate srews and take off the grill rear grill 19 DER Disassemble hou
17. cess when 0 C lt Tset Tin am 2 compressor operates in low frequency during cooling process when 0 need of cooling power and Tset Tin am gt 2 C then compressor stops running And outdoor fan motor stops in 60s In this mode there is no power supply for reversing valve Range of temperature setting is 16 30 ion 6 1 2 1 2 Frost proof protection In cool and dehumidifying mode when frost proof protection is detected the compressor will run in lower frequency or stops And outdoor fan motor stops in 60s When frost proof protection ends Compressor resumes running 6 1 2 1 3 Controlling principles of outdoor fan motor If Tout am 26 C the fan motor runs in high speed If Tout am lt 24 C the fan motor runs in low speed If 24 C lt Tout amb 26 the fan motor runs in original speed After fan motor runs in compulsive high speed for 3 minutes in starting up then the speed will be controlled by the set principles 6 1 2 2 Dehumidifying mode Working conditions and process of dehumidifying the same with the ones in cooling mode status of 4 way valve closed Q range of temperature setting 16 30 C protection function the same with the ones in cooling mode 6 1 2 3 Fan mode compressor outdoor fan motor and 4 way valve are closed and stopped Q range of temperature setting 16 30 C 6 1 2 4 Heating mode 6 1 2 4 1 Working conditions and process of heating when compressor in closing down state and Tin am
18. controller Batteries of remote controller are low Change battery Remote controller 068 not receive signal When powered the unit does not response after the remote controller is used to turn it on Malfunction of remote controller First press the AUTO button of the manual switch If there is no response check according to the above method if it 1s normal after the button is on the buzzer will send out a sound unless it is broken Loose or poor connection of receiving ea 2 c pressed check if the installation location and wire connection of the receiving head are correct If correct replace the receiving head or the remote controller Receiving head is broken 27 When unit is cooling or heating both compressor and outdoor fan don t run When unit is cooling or heating the compressor runs but outdoor fan doesn t run When cooling or heating outdoor fan runs but compressor doesn t run When cooling or heating fan runs but compressor doesn t run Damage of outdoor main control board Breakage of outdoor power module Improper setting of temperature Wrong wire connection Breakage of outdoor main control board Breakage of outdoor fan capacitor Malfunction of compressor Poor contact of connection between the main control board and module Abnormal output of power module Compressor temperature is too high Wrong wiring 00
19. estored for long time please disconnect power supply And connect again after about 10 minutes later If repeating this method for several times and malfunction still exist please replace the module 8 PFC protection Possible reasons outdoor temperature is too high over high temperature of PFC module power of whole unit is too high and current is too high low vollage in PFC bad contact between the cables in PFC control board Handing method If PFC protection happens please check connecting cables of PFC board first If the whole unit can not operate normally and PFC protection happens all the time please replace PFC 9 refrigerant charging Similar with the procedures of the over 5kw wall split models Notice refrigerant charging can only be started after whole unit has been operating stably for about 10 minutes 34 7 Module protection Handling method Check if the voltage between power module P and N is too low and if the current is too high In normal condition voltage between P and N should be about 320V A bnormal heck power supply circuitof outdoor unit if PTC resistance Normal rectifying bridge reactor capacitance etc is ok Check if radiating paste is spread R einstall power module and Temperature of power module istoo high evenly or radiating sticker 15 stuck re spread radiating paste or which causes overheating protection Well if screws of power module stick radiating sticker on the is
20. nly be restart by pressing ON OFF button In operation if operating time of compressor is over 7 minutes the number of times will be zero cleared 6 1 3 4 Current protection function 1 overcurrent protection If current of whole unit is beyond max limit unit will close down as if indoor temperature reaches the set temperature Unit will restore automatically after compressor has been stop for 3 minutes 11 If there are 6 continuous times of protection compressor will stop and can not restart by itself and send signal of error to indoor unit It can only be restart by pressing ON OFF button In operation if operating time of compressor is over 7 minutes the number of times will be zero cleared 2 frequency demultiplying limitation of current control If current of whole unit is high frequency of compressor will be demultiplied or limited If normal current value is detected whole unit restore to operate normally 6 1 3 5 Communication failure When there is no right signal from indoor unit for continuous 3 minutes or no right signal from driving slug within 60s communication failure happens Outdoor unit will closes down 6 1 3 6 Module protection Compressor will detect signal of module protection right away after it starts Compressor closes down in module protection status as if room temperature reaches the set value And relevant error is displayed Compressor restores to run after stopping for 3 minutes If there are 6
21. pot up 261530805 8 19 PCB Suppo down o Te 41 Underpan Assy 26 Troubleshooting Analysis in this section is used for D C Variable Frequency Series Before analysis you can diagnose according to the code displayed on indoor unit or indicator display on outdoor unit Refer to Malfunction display section Measure the insulating resistance trip at once there is electrical leakage or short circuit in the unit Breaker tripped or fuse burnt out Insulation malfunction of line or componen SEI in the air conditioner Insulation breakdow When the unit is turned on the occurs after radiation which causes shor breaker will trip in a few minutes circuit or electricity leakage Measure insulating resistance or use one by on elimination method Malfunction of fuse Replace it No power supply Check power supply circuit Air conditioner does not response after powered on The buzzer does not sound after the plug is connected an The power plug is not or poorly Check and plug well plug make connected loosen contact firm Controller fuse is burnt out Change control fuse Secure the wire connection measure Loose or poor contact of transformer _ the output voltage of the transformer connection or transformer malfunction and replace it if the value is wrong l The controller is broken Replace the
22. r out of control blink 8 times first PFC protection then module protection 14 Disassembly procedures Disassembly procedures for indoor unit Procedures and pictures 28 Disassembly front panel Refer to figure 7 1 filter electrical box top cover screw Disassemble filter Push filter inside and pull it upward Take the filter away Refer to 7 2 front panel hook 081 Disassemble guide louver Bend the guide louver with strength and let out the hook Refer to figure 7 3 7 3 15 Disassemble front case Unclench screw covers then unscrew 6 screws and lift Es B Y it backward 8 1 zh j Refer to figure 7 4 Screws 1 4 Disassemble electrical box cover Unscrew the srew fixing the display board and take the board off Hold the cover and press it to loosen the hook lift it upward and remove the box cover Refer to figure 7 5 display board electrical box cover EDEN Disassemble electrical box je disassemble the grounding nut on evaporator take away tube sensor unplug the connecting terminal for indoor fan motor and stepping motor Unscrew the screw fixing electrical box Take out it Refer to figure 7 6 tube sensor 22 grounding nut FI A ambient A 7 6 16 Disassem
23. sing case unsrew the screws around the housing case and take off it Bodas housing case Disassemble electrical box Screw out the 2 screws fixing the electrical box lift it and remove it Refer to figure 7 17 7 18 Screws cover of electrical box 7 2 6 Disassemble right side plate unscrew the 7 srews in right side plate condensor side plate and valve support lift right side plate and remove it Refer to 7 19 T I9 20 Operating procedures pictures Disassemble axial flow fan Loosen the nut with spanner and remove it nut axial flow fan 7 20 7 2 8 Disassemble motor motor support motor Unscrew four tapping screws fixing the motor and remove the motor Unscrew the two tapping screws fixing l screws the motor support lift and remove it Refer to figure 7 21 cable motor support Screws Disassemble 4 way valve Unscrew the nut holding 4 way coil and remove the coil Use wet cotton cloth to wrap 4 way valve unsodler 4 points connecting 4 way valve and remove it 4 way valve Be quick during the process try to make the cotton wet all the time Don t allow the flame to burn the lead out calbe of compressor soldering points Refer to figure 7 22 24 Operating procedures pictures HEB Disassemble capillary Unsolder the joint points between capillary and other pipelines them it
24. t of heat heating unit in the room drain hose 15 blocked or broken replace the drain hose water leakage connector of refrigerant pipe isn t wrapped well l wrap and tight it again indoor fan collides with other parts adjust the location of fan abnormal things in indoor unit remove it compresoor shakes overly adjust the washer and tight the bolt abnemaLshake pipes in outdoor unit collides set the pipes apart 1 tighten the connecting bolt metal plates collides 2 stick shake reduction plaster between the metal plates abnormal sound inside compressor replace compressor outdoor fan collides with case adjust the fan location abnormal electromagnetic sound in MINIM 4 way valve in HEAT mode Short circuit inside electromagnetic valve repalace CAUTION 1 When repairing before the voltage between module PN is measured below 50V do not touch any terminal to avoid electrical shock 2 When replacing power module and rectifier make sure to spread the indicating paste evenly 30 9 2 Malfunction display section Analysis or handling of some malfunction display 1 Compressor discharge protection Possible reasons shortage of refrigerant block of air filter poor ventilation or air flow short pass in condenser system has noncondensing gas ge Water air blockage of capillary including filter leakage inside 4 way valve causes incorrect operations malfunction of compressor malfunction of protection
25. tightened radiator of power module Protection 15 still displayed Poor radiation heat exchanger Confirm the setting status of outdoor unit cooling Is dirty b ons Normal Confirm if outdoor fan motor is running unplug the a three connecting wires between U V W of compressor Outdoor fan runs Confirm if there is voltage output and balance of and power module Turn on the unit to see if outdoor voltage between any two phases of U V and W fan runs normally about 1 minute Outdoor fan stops Y MEER 0 M easurethe voltage of outdoor Whether module type fan connector is correct R eplacethe power module A bnormal Normal Replace the module M easure the three phase with correct type resistance of compressor Normal A bnormal W hether cylinder of Replace the compressor 15 stuck compressor If the unit runs normally after connected Normal voltage Replace the fan motor Replacethemainboard of outdoor unit with the new compressor for trial run the cylinder of original compressor is stuck 392
26. ting of malfunction of temp sensor and IPM overheating 1 In stand by status outdoor tube temperature sensor ambient temperature sensor and sensing device error of overheating IPM are not under detection 2 error of temp sensor of exhausting gas and error of IPM overheating will be under detection after the whole unit is on and compressor operates for continuous 3 minutes 3 within 10 minutes after compressor starts or within 10 minutes after defrosting or oil returning in heating mode error of outdoor tube temp sensor are not under detection 4 when error of IPM overheating or failure of temp sensor is detected whole unit will closes down immediately 12 6 1 3 11 The status of indicator in outdoor unit Notice When the unit is power on again the times of all the protection above including overloading protection high exhausting gas temp protection of compressor overcurrent protection module protection etc will be reset D11 Meaning D12 Meaning D13 Meaning blink 1 time compressor starts to run blink 1 time cooling overload blink 1 time quick cooling heating protection stop blink 2 times exhaust protection stop blink 2 times heating overload blink 2 times defrosting protection stop blink 3 times closing down for NEC blink 3 times communication failure blink 3 times oil returning driving module protection with indoor unit blink
27. tion of Partial blockage of capillary Replace the capillary Use the method of observing condensation on the evaporator and pressure value of high pressure manometer to see whether the system is blocked and carry out corresponding handling on the system Blockage of cooling system l i Ensure that both thick pipe and thin pipe are insulated Poor thermal insulation of connecting nine of indoor and outdoor unit well The exposed part of the connector and copper pipe D e O 20 g lt c 2 un must be insulated as well 20 e m A Heat exchanger of outdoor unit Clean the dust accumulated on the is blocked surface of the heat exchanger Aur filters are blocked Clean the filter Fan speed is set too slow Set the fan speed to high or medium Air circulation peed T Replace the _ Fan speed turns low 5 daria oed epa or Replace the motor motor Improper installation location Outdoor unit should be installed in a for outdoor unit place with well ventilation Outdoor temperature is too high Flashing or awning can be installed appropriately If the max cooling capacity cannot be satisfied replacement of the air conditioner 1s recommended is insufficient Indoor sealability is inadequate too many Maintain a certain degree of indoor sealability Try not to people go in and out frequently there is use appliance with high amoun
28. tiplying blink 3 times frequency limiting for for cooling overload cooling overloading blink 4 times frequency demultiplying blink 4 times frequency limiting for for heating overload heating overloading blink 5 times frequency demultiplying blink 5 times frequency of current 9 4 A for frost proof lasting for 2 minutes 13 D14 Meaning D15 Meaning blink 6 times Unit closing down for blink 6 times frequency of current 12 A lasting for 2 minutes min frequency blink 7 times Unit closing down for blink 7 times frequency limiting or demultiplying for rate of PFC protection frequency variation out of control blink 8 times Unit closing down for blink 8 times frequency limiting or demultiplying of compressor compressor overloading current blink 9 times frequency limiting or demultiplying for over temp of IPM module D17 Meaning D18 Meaning blink 1 time too low DC input voltage when no short circuit in On receiving or sending indoor data blink 2 times too high DC voltage computer monitor port off receiving or sending indoor data finished blink 3 times AC current protection short circuit in blink normal communication between main borad and computer monitor port driving board blink 4 times IPM abnormality not abnormal communication between main board and blink driving board blink 5 times reserved built in PFC protection blink 6 times start up failure blink 7 times phase losing o
29. ts in heating mode it turns to the max air outlet position D2 after unit starts in cooling mode it will turns to D1 position and then back to L1 position when in swinging state it will swing between L1 and D1 in cooling between L and D2 in heating After the unit is off it will turns back to A position to close the air outlet vent 6 1 3 3 Timer control The auto start timer function can be set when the unit is off When it reaches the time the controller will function in the originally set mode The interval is 0 5 hour and the range of timer is 0 5 24 hours The auto stop timer can be set when the unit is on When it reaches the time unit will be off automatically The interval is 0 5 hours and range of timer is 0 5 24 hours 6 1 3 4 Sleep control When units in cool or dry mode after sleep mode has been set properly the preset Tset will be increased by 1 C after sleep program has run for 1 hour And Tset will be increased by another 1 C after 2 hours Tset has been increased by 2 C totally in two hours Then the unit will run at this set temperature and at the set speed 7 et pem Tus h Akaye Jh When unit is in HEAT mode after sleep mode has been set properly the preset Tset will be increased by 1 C after the sleep program has run for 1 hour and Tset will be decreased by another 1 C after 2 hours Tset has been increased by 2 C totally in two hours Then the unit will run at this temperature and at the set speed
Download Pdf Manuals
Related Search