Service Manual Models: MWM09Y1J/MRM09Y1J MWM12Y1J/MRM12Y1J (Refrigerant R410A)
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6HUYLFH 0DQXDO 0DLQWHQDQFH ............................................................................................................30 9.1 Error Code List ...............................................................................................................30 9.2 Troubleshooting for Main Malfunction ............................................................................38 9.3 2-way, 3-way Valve Appearance...................................................................................
6HUYLFH 0DQXDO 3DUW Ė 7HFKQLFDO ,QIRUPDWLRQ 6XPPDU\ ,QGRRU 8QLW MWM09Y1J MWM12Y1J 2XWGRRU 8QLW MRM09Y1J MRM12Y1J 5HPRWH &RQWUROOHU YT1FF(MOTO2) Technical Information
6HUYLFH 0DQXDO 6SHFL¿FDWLRQV 6SHFL¿FDWLRQ 6KHHW Model Product Code Power Supply MWM12Y1J MRM09Y1J CB146035101_L13396 MRM12Y1J CB146035001_L13396 Rated Voltage V~ 115 115 Rated Frequency Hz 60 60 Phases Power Supply Mode 1 1 Outdoor Outdoor Cooling Capacity (Min~Max) Btu/h 9000(3500~11000) 11800(3300~12500) Heating Capacity (Min~Max) Btu/h 9800(2500~11000) 13000(3400~13500) Cooling Power Input (Min~Max) W 750(220~1100) 1260(260~1340) Heating Power Input (Min~Max) W 830
HUYLFH 0DQXDO Model of Outdoor Unit MRM09Y1J Product Code MRM12Y1J CB146W0431_L13396 CB146W0451_L13396 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark Compressor Model Compressor Oil Compressor Type CO., LTD QXA-A091ZE190 CO., LTD QXA-A091ZE190 FVC68D FVC68D Rotary Rotary L.R.A.
6HUYLFH 0DQXDO 2SHUDWLRQ &KDUDFWHULVWLF &XUYH Cooling Heating 10 8 9 7 8 6 7 5 Current(A) Current(A) 6 5 4 Condition Indoor:DB 80°F WB67 °F Indoor air flow: Super High Pipe length:24.6ft 3 2 3 Condition Indoor:DB 70°F WB60 °F Indoor air flow: Super High Pipe length:24.6ft 2 1 1 0 4 0 0 20 40 60 80 100 120 0 20 Compressor Frequency(Hz) 40 60 80 100 120 Compressor Frequency(Hz) &DSDFLW\ 9DULDWLRQ 5DWLR $FFRUGLQJ WR 7HPSHUDWXUH Heating 110 120 100 100 90 80 Capaci
6HUYLFH 0DQXDO &RROLQJ DQG +HDWLQJ 'DWD 6KHHW LQ 5DWHG )UHTXHQF\ Cooling: Rated cooling condition(oF) (DB/WB) Indoor Model Outdoor Pressure of gas pipe connecting indoor and outdoor unit P (MPa) MWM09Y1J 80/67 MRM09Y1J MWM12Y1J 95/– Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency (Hz) T1 (oF) T2 (oF) 54 to 57 106 to 109 Super High High 48 50 to 54 109 to 113 Super High High 77 0.8~1.
6HUYLFH 0DQXDO 2XWOLQH 'LPHQVLRQ 'LDJUDP ,QGRRU 8QLW 8 11 1/7 30 1/3 MWM09Y1J MWM12Y1J 5 21 4/7 3 5/7 Φ2 1/6 Φ2 1/6 1 5/8 2 3/5 Unit: inch 3 2/3 2XWGRRU 8QLW MRM09Y1J MRM12Y1J 30 10 1/8 21 1/4 33 2/5 12 3/5 11 2/3 21 1/4 Unit: inch Technical Information
6HUYLFH 0DQXDO 5HIULJHUDQW 6\VWHP 'LDJUDP &RROLQJ +HDWLQJ 0RGHOV Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Discharge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger (condenser) Liquid pipe side Valve Strainer Capillary Strainer COOLING HEATING Refrigerant pipe diameter Liquid :1/4" Gas : 3/8" Technical Information
6HUYLFH 0DQXDO (OHFWULFDO 3DUW :LULQJ 'LDJUDP Ɣ,QVWUXFWLRQ Symbol Symbol Color Symbol Symbol Color Symbol Name WH White GN Green CAP Jumper cap YE Yellow BN Brown COMP Compressor RD Red BU Blue YEGN VT Grounding wire Yellow/Green BK Black / / Violet OG Orange / / Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
6HUYLFH 0DQXDO Ɣ 2XWGRRU 8QLW MRM09Y1J MRM12Y1J : %8 / : <(*1 : 5' / &203 8 &203 ( : <(*1 9 : / / / * %8 <( 5' 2875220 (;+$867 78%( 7(0 6(1625 7(0 6(1625 7(0 6(1625 57 57 6$7 57 5' ,1'225 81,7 ;7 1 7(50,1$/ %/2&. 8 $& 1 $& 1 $& / $& / ( 29(5+($7 * : %.
6HUYLFH 0DQXDO 3&% 3ULQWHG 'LDJUDP ,QGRRU 8QLW Ɣ 7RS YLHZ 10 11 9 8 7 6 5 NO. 1 2 3 4 5 6 7 8 9 10 11 Name Fuse Live wire Communication wire Display interface Jumper cap Up and down swing Ambient temperature sensor Temperature sensor PG feedback PG motor Neutral wire GRJ836-A4 V1.
6HUYLFH 0DQXDO 2XWGRRU 8QLW Ɣ 7RS YLHZ 13 12 11 10 9 8 7 6 5 GRJW819-A3 V1.2 2013/06/25/12 1 NO. 1 2 3 4 5 Name Compressor output port Overload port Temperature sensor port Communication wire port Earthing wire port 2 NO. 6 7 8 9 10 3 4 Name NO.
6HUYLFH 0DQXDO )XQFWLRQ DQG &RQWURO 5HPRWH &RQWUROOHU ,QWURGXFWLRQ %XWWRQV RQ 5HPRWH &RQWUROOHU 1 1 2 4 3 8 7 2 :Press to decrease temperature setting. 3 :Press to increase temperature setting. 4 FAN AUTO:Press to set fan speed. 5 MODE:Press to select operation mode (AUTO/COOL/DRY/FAN/HEAT). 6 SENSOR 7 CLOCK:Press it set clock. 8 TIMER ON:Press it to set auto-on timer. 9 AIR SWEEP:Press it set swing angle. 10 EXTEND 5 6 START / STOP:Press to start or stop operation.
6HUYLFH 0DQXDO ,QWURGXFWLRQ IRU %XWWRQV RQ 5HPRWH &RQWUROOHU 67$57 6723 EXWWRQ Press this button to turn on the unit .Press this button again to turn off the unit. Press this button to decrease set temperature. Hold it down for 2 seconds or more to rapidly decrease set temperature. In AUTO mode, set temperature is not adjustable. Press this button to increase set temperature. Hold it down for 2 seconds or more to rapidly increase set temperature.
6HUYLFH 0DQXDO 785%2 EXWWRQ Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time. In COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super high fan speed. (This function is not applicable for some models). 6/((3 EXWWRQ Press this button to go into the SLEEP operation mode. Press it again to cancel this function.
6HUYLFH 0DQXDO %ULHI 'HVFULSWLRQ RI 0RGHV DQG )XQFWLRQV (1)Cooling Mode 1. When room temp-set temp ≤-3.6°F , cooling will stop; Outdoor fan will stop later and indoor fan will operate at set speed; 2. When room temp –set temp ˚ -3.6°F, if such situation continues for a period of time, cooling operation will be started. In that case, indoor fan, outdoor fan and compressor will operate and the indoor fan will operate at set speed.
6HUYLFH 0DQXDO and D. there are 7 states for the L Sleeping mode is available only in cooling and heating modes; D A B C Cooling mode: at the base of initial set temperature by remote controller, the set temperature will increase automatically according to people’s coziness within several hours after setting sleep function.
6HUYLFH 0DQXDO Detect malfunctions of temperature sensor any time. (2) Indoor Pipe Temperature Sensor detect the temperature sensor malfunction. In other times, the temperature sensor malfunction will be detected. (3) Protection of Temperature Sensor 1. When short-circuit occurs to the temperature sensor for 30s: The temperature sensor overheats. In this case, the complete unit will stop for protection. At the same time, the temperature protection and temperature sensor malfunction will be shown. 2.
6HUYLFH 0DQXDO Management within the Zones Zone Control contents Stop zone When the temperature reaches the stop zone, stop the compressor and correct abnormality. Drooping zone Keep zone Return / Reset zone Start the timer, and the frequency will be drooping. Keep the upper limit of frequency. Cancel the upper limit of frequency. Input Current Control Outline Detect an input current by the CT during the compressor is running, and set the frequency upper limit from such input current.
6HUYLFH 0DQXDO Heating Peak-cut Control Outline Heat Pump Only During heating operation, the signals being sent from the indoor unit allow the operating frequency limitation and prevent abnormal high pressure. (The signal from the indoor unit must be divided as follows.) Detail 1.Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec. from operation start. 2.
6HUYLFH 0DQXDO 3. Fan OFF delay when stopped 4. ON/OFF control in cooling operation 5. Tap control when drooping function is working 6. Fan control in forced operation 7. Fan control in indoor/outdoor unit silent operation 8. Fan control in powerful mode 9. Fan control in normal operation Detail Fan OFF Control when Stopped * Fan OFF delay for 60 seconds must be made when the compressor is stopped. Tap Control in indoor/outdoor unit silent operation 1.
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6HUYLFH 0DQXDO 0DLQ 7RROV IRU ,QVWDOODWLRQ DQG 0DLQWHQDQFH /HYHO PHWHU PHDVXULQJ WDSH 6FUHZ GULYHU ,PSDFW GULOO GULOO KHDG HOHFWULF GULOO (OHFWURSUREH 8QLYHUVDO PHWHU 7RUTXH ZUHQFK RSHQ HQG ZUHQFK LQQHU KH[DJRQ VSDQQHU (OHFWURQLF OHDNDJH GHWHFWRU 9DFXXP SXPS 3UHVVXUH PHWHU 3LSH SOLHUV SLSH FXWWHU 3LSH H[SDQGHU SLSH EHQGHU 6ROGHULQJ DSSOLDQFH UHIULJHUDQW FRQWDLQHU Installation and Maintenance
6HUYLFH 0DQXDO ,QVWDOODWLRQ At least 5 8/9 inch Space to the ceiling ,QVWDOODWLRQ 'LPHQVLRQ 'LDJUDP Space to the wall Space to the wall At least 5 8/9 inch At least 98 3/7 inch At l ac et ot At l eas he t 11 At least 19 2/3 inch Sp Space to the obstruction Sp ac et ot he ob Space to the floor str uc eas tio t 11 n 8 in ch At least 5 8/9 inch 4/5 ce a Sp wa At ll n io ct e th to lea s 1 t1 ru st ob 4/5 h inc inch Drainage pipe a ce Sp Installation a
6HUYLFH 0DQXDO ,QVWDOODWLRQ SURFHGXUHV Start installation Preparation before installation Read the requirements for electric connection select installation location Select indoor unit installation location Prepare tools Select outdoor unit installation location Install the support of outdoor unit (select it according to the actual situation) Install wall-mounting frame, drill wall holes Connect pipes of indoor unit and drainage pipe Fix outdoor unit Connect wires of indoor unit Install drainage j
6HUYLFH 0DQXDO ,QVWDOODWLRQ 3DUWV FKHFNLQJ No. 1 2 Name Indoor unit Outdoor unit No. 8 9 3 Connection pipe 10 4 Drainage pipe Wall-mounting frame Connecting cable(power cord) Wall pipe 11 5 6 7 12 13 Name Sealing gum Wrapping tape Support of outdoor unit Fixing screw Drainage plug(cooling and heating unit) Owner’s manual, remote controller 1RWH 1.Please contact the local agent for installation. 2.Don't use unqualified power cord.
6HUYLFH 0DQXDO (3) Fix the wall-mounting frame on the wall with tapping screws (ST4.2X25TA) and then check if the frame is firmly installed by pulling the frame. If the plastic expansion particle is loose, please drill another fixing hole nearby. ,QVWDOO :DOO PRXQWLQJ )UDPH (1) Choose the position of piping hole according to the direction of outlet pipe. The position of piping hole should be a little lower than the wall-mounted frame.(As show in Fig.
6HUYLFH 0DQXDO &RQQHFW :LUH RI ,QGRRU 8QLW %LQG XS 3LSH (1) Open the panel, remove the screw on the wiring cover and then take down the cover.(As show in Fig.11) (1) Bind up the connection pipe, power cord and drain hose with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord for installation when binding them. When binding to a certain degree, separate the indoor power and then separate the drain hose.(As show in Fig.15) (3) Bind them evenly.
6HUYLFH 0DQXDO 1RWH (1) Take sufficient protective measures when installing the outdoor unit. (2) Make sure the support can withstand at least four times the unit weight. (3) The outdoor unit should be installed at least 1 1/6inch above the floor in order to install drain joint.(As show in Fig.
6HUYLFH 0DQXDO 1RWH (1) The through-wall height of drain hose shouldn't be higher than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) Slant the drain hose slightly downwards. The drain hose can't be curved, raised and fluctuant, etc.(As show in Fig.26) (3) The water outlet can't be placed in water in order to drain smoothly.(As show in Fig.27) /HDNDJH 'HWHFWLRQ (1) With leakage detector: Check if there is leakage with leakage detector.
6HUYLFH 0DQXDO 0DLQWHQDQFH (UURU &RGH /LVW 0DOIXQFWLRQ GLVSOD\ UHTXLUHPHQW When there are several malfunctions, they will be displayed circularly. 0DOIXQFWLRQ GLVSOD\ PHWKRG (1) Hardware malfunction: immediate display; refer to “error code list”; (2) Operation state: immediate display; refer to “error code list”; (3) Other malfunctions: it is displayed after the compressor stops for 200s; refer to “error code list”. 1RWH ZKHQ WKH FRPSUHVVRU LV UHVWDUWHG WKH PDOIXQFWLRQ GLVSOD\ GHOD\ WLPH
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display 11 12 Gathering refrigerant Indoor ambient temperature sensor is open/short circuited Fo F1 Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Power Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during A/C status blinking, ON 0.5s and OFF 0.
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Power Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF A/C status Possible Causes 0.
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Power Cool Heating Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF 0.
6HUYLFH 0DQXDO Display Method of Indoor Unit No. Malfunction Name Indicator Display (during Display Method of Outdoor Unit Indicator has 3 kinds of display status and during Dual-8 blinking, ON 0.5s and OFF blinking, ON 0.5s and OFF Code 0.5s) 0.
6HUYLFH 0DQXDO No. Malfunction Name Display Method of Indoor Unit Indicator Display (during Dual-8 blinking, ON 0.5s and OFF Code 0.5s) Display Power Indicator 53 54 Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking, ON 0.5s and OFF 0.5s Cool Heating Yellow Red Indicator Indicator Indicator Indicator Possible Causes Green Indicator OFF 0.
6HUYLFH 0DQXDO 7URXEOHVKRRWLQJ IRU 0DLQ 0DOIXQFWLRQ 0DOIXQFWLRQ RI 7HPSHUDWXUH 6HQVRU ) ) Troubleshooting for F1,F2 malfunction Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? yes Insert the temperature sensor tightly no no Is there short circuit due to trip-over of the parts? Is malfunction eliminated yes Make the parts upright no no Is the temperature sensor normal according to the Resistance Table? Is malfunction eliminated yes
6HUYLFH 0DQXDO 0DOIXQFWLRQ RI %ORFNHG 3URWHFWLRQ RI ,'8 )DQ 0RWRU + Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly yes no Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated no Check if the connection of PG motor feedback terminal is firm.
6HUYLFH 0DQXDO 0DOIXQFWLRQ RI 3URWHFWLRQ RI -XPSHU &DS & Troubleshooting for C5 malfunction Is there jumper cap on the mainboard? no Appearance of the jumper cap Assemble the jumper cap with the same model yes Is malfunction eliminated no Is the jumper cap inserted correctly and tightly ? no Insert the jumper cap tightly yes no Is malfunction eliminated yes Replace the jumper cap with the same model yes Is malfunction eliminated yes no Replace the mainboard with the same model.
6HUYLFH 0DQXDO 0DOIXQFWLRQ RI =HUR FURVVLQJ ,QVSHFWLRQ &LUFXLW 0DOIXQFWLRQ RI WKH ,'8 )DQ 0RWRU 8 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization U8 is still displayed No The unit returns to normal. Conclusion:U8 is displayed due to instant energization afte deenergization while the capacitor discharges slowly. Yes The zero-cross detection circuit of the mainboard is defined abnormal.
6HUYLFH 0DQXDO 0DOIXQFWLRQ RI FRPPXQLFDWLRQ ( Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Correct connection? Connect the line according to wiring diagram.
6HUYLFH 0DQXDO 0DOIXQFWLRQ RI SRZHU VXSSO\ IURP LQGRRU XQLW WR RXWGRRU XQLW Main inspection point: Flow chart of Malfunction diagnosis Energize the unit and wait for 3min Measure voltage between N 1and 3 of indoor wiring block Voltage > 200V? Measure voltage between L and N of outdoor wiring block Y N Normal wiring? Voltage > 200V? N Y Indoor main board error N Y Outdoor electric box error Adjust wiring Replace main board of indoor unit Replace outdoor electric box indoor and outdoor wiri
6HUYLFH 0DQXDO Energize the unit and start it Voltage between L and N of indoor wiring block Check the connecting state of the connecting terminal Y Voltage > 200V? Reliable connection N N Adjust connecting state Y Check power supply Replace main board of indoor unit N Remove the error? N remove the error? Y Replace motor Y Finish 7HPSHUDWXUH VHQVRU PDOIXQFWLRQ (3) Temperature sensor malfunction Main detection points: Is outdoor ambient temperature within the normal range? Is indoor and
6HUYLFH 0DQXDO Energize the unit and start it 0DOIXQFWLRQ GLDJQRVLV RI VWDUWXS IDLOXUH (4) Malfunction diagnosis of startup failure Main detection points: Is wiring of compressor correct.
6HUYLFH 0DQXDO 'LDJQRVLV RI RYHUORDG DQG GLVFKDUJH PDOIXQFWLRQ (6) Diagnosis of overload and discharge malfunction Main detection points: Is electric expansion valve well connected? Is it damaged? 20min after de-energization of complete unit Is refrigerant leaked? Is overload wire connection normal? Malfunction diagnosis process: Is electric expansion valve well connected? N Y Is overload wire reliably connected? N Y Adjust connecting wire Replace electric expansion valve Remove malfunction?
6HUYLFH 0DQXDO ZD\ ZD\ 9DOYH $SSHDUDQFH 2-way Valve (Liquid Side) Flare nut Hexagonal wrench (4mm) Open position Closed position To piping connection Shipping 1.
6HUYLFH 0DQXDO $LU SXUJLQJ &$87,21 'R QRW OHDN WKH JDV LQ WKH DLU GXULQJ $LU SXUJLQJ Liquid side Indoor unit 2-way valve Clsed Outdoor unit Gas side 3-way valve Vacuum pump OPEN Clsed Lo CLOSE 3URFHGXUH &RQQHFW WKH FKDUJH KRVH IURP WKH PDQLIROG YDOYH WR WKH VHUYLFH SRUW RI WKH JDV VLGH SDFNHG YDOYH &RQQHFW WKH FKDUJH KRVH WR WKH SRUW RI WKH YDFXXP SXPS 2SHQ IXOO\ WKH ORZ SUHVVXUH VLGH KDQGOH RI WKH JDXJH PDQ LIROG YDOYH 2SHUDWH WKH YDFXXP SXPS WR EHJLQ HYDFXDWLQJ
6HUYLFH 0DQXDO 3XPSLQJ 'RZQ Liquid side Indoor unit 2-Way valve Open Outdoor unit Gas side 3-Way valve Closed Lo CLOSE CLOSE Purge the air 3URFHGXUH &RQ¿UP WKDW ERWK WKH ZD\ DQG ZD\ YDOYHV DUH VHW WR WKH RSHQ SRVLWLRQ – Remove the valve stem caps and confirm that the valve stems are in the raised position. – Be sure to use a hexagonal wrench to operate the valve stems. 2SHUDWH WKH XQLW IRU WR PLQXWHV ,PPHGLDWHO\ VHW WKH ZD\ YDOYH WR WKH FORVHG SRVLWLRQ – Do
6HUYLFH 0DQXDO 5H DLU 3XUJLQJ Liquid side Indoor unit 3-Way valve Closed Outdoor unit Gas side 3-Way valve Closed Gas cylinder Lo R410A OPEN CLOSE 3URFHGXUH &RQ¿UP WKDW ERWK WKH OLTXLG VLGH YDOYH DQG WKH JDV VLGH YDOYH DUH VHW WR WKH FORVHG SRVLWLRQ &RQQHFW WKH FKDUJH VHW DQG D JDV F\OLQGHU WR WKH VHUYLFH SRUW RI WKH *DV VLGH YDOYH – Leave the valve on the gas cylinder closed. $LU SXUJLQJ – Open the valves on the gas cylinder and the charge set.
6HUYLFH 0DQXDO %DODQFH 5HIULJHUDQW RI WKH ZD\ 9DOYH *DV OHDNDJH Liquid side Indoor unit 3-Way valve Outdoor unit Open Gas side 3-Way valve Open Lo OPEN CLOSE 3URFHGXUH &RQ¿UP WKDW ERWK WKH ZD\ DQG ZD\ YDOYHV DUH VHW WR WKH EDFN VHDW &RQQHFW WKH FKDUJH VHW WR WKH ZD\ YDOYHV SRUW – Leave the valve on the charge set closed. – Connect the charge hose to the service port.
6HUYLFH 0DQXDO (YDFXDWLRQ $OO DPRXQW RI UHIULJHUDQW OHDNHG Liquid side Indoor unit 3-Way valve Outdoor unit Open Gas side 3-Way valve Vacuum pump OPEN Open Lo CLOSE 3URFHGXUH &RQQHFW WKH YDFXXP SXPS WR WKH FHQWHU KRVH RI FKDUJH VHW FHQWHU KRVH &ORVH WKH YDOYH /R VLGH RQ WKH FKDUJH VHW WXUQ RII WKH YDFXXP SXPS DQG FRQ¿UP WKDW WKH JDXJH QHHGOH GRHV QRW PRYH DSSUR[LPDWHO\ PLQXWHV DIWHU WXUQLQJ RII WKH YDFXXP SXPS (YDFXDWLRQ IRU DSSUR[LPDWHO\ RQH KRXU – Confirm that the ga
6HUYLFH 0DQXDO *DV &KDUJLQJ $IWHU (YDFXDWLRQ Liquid side Indoor unit 3-Way valve Outdoor unit Open Gas side 3-Way valve Open Lo OPEN CLOSE 3URFHGXUH &RQQHFW WKH FKDUJH KRVH WR WKH FKDUJLQJ F\OLQGHU – Connect the charge hose which you dis-connected from the vacuum pump to the valve at the bottom of the cylinder. – If you are using a gas cylinder, also use a scale and reverse the cylinder so that the system can be charged with liquid.
6HUYLFH 0DQXDO 7URXEOHVKRRWLQJ IRU 1RUPDO 0DOIXQFWLRQ $LU &RQGLWLRQHU &DQ W EH 6WDUWHG 8S Possible Causes No power supply, or poor connection for power plug Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, After energization, operation indicator isn’t bright wait for power recovery. If not, check power and the buzzer can't give out sound supply circuit and make sure the power plug is connected well.
6HUYLFH 0DQXDO 2'8 )DQ 0RWRU &DQ W 2SHUDWH Possible causes Wrong wire connection, or poor connection Discriminating method (air conditioner status) Check the wiring status according to circuit diagram Troubleshooting Connect wires according to wiring diagram to make sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of Replace the capacity of fan damaged the deviation range indica
6HUYLFH 0DQXDO ([SORGHG 9LHZ DQG 3DUWV /LVW ,QGRRU 8QLW MWM09Y1J MWM12Y1J Installation and Maintenance
6HUYLFH 0DQXDO No.
6HUYLFH 0DQXDO 2XWGRRU 8QLW MRM09Y1J MRM12Y1J 32 31 26 30 25 24 23 22 21 20 29 28 27 19 18 17 16 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Installation and Maintenance
6HUYLFH 0DQXDO No.
6HUYLFH 0DQXDO 5HPRYDO 3URFHGXUH :DUQLQJ %H VXUH WR ZDLW IRU D PLQLPXP RI PLQXWHV DIWHU WXUQLQJ RII DOO SRZHU VXSSOLHV DQG GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO\ EHIRUH UHPRYDO 5HPRYDO 3URFHGXUH RI ,QWGRRU 8QLW 3URFHGXUH 6WHSV ([WHUQDO IHDWXUHV 3RLQWV ■ If ON/OFF button is kept pushing for 5 seconds, a forced cooling operation will be carried out for approx. 15 minutes.
6HUYLFH 0DQXDO 3RLQWV 3URFHGXUH 6WHSV 2SHQLQJ DQG VKXWWLQJ IURQW SDQHO a Draw out the axial bush. Bend the horizontal louver slightly and then remove it. ■ Support the front panel by one hand, while remove the rotation axis at the upper center by the other hand. Guide Louver b Hook a finger onto the projection part provided on the both sides of the units panel and open up the panel to the position higher than it will stop. c Axial bush ■ Left and right filters are interchangeable.
6HUYLFH 0DQXDO 3RLQWV 3URFHGXUH 6WHSV 2SHQLQJ DQG FORVLQJ RI VHUYLFH FRYHU Remove a service cover mounting screw. Open service cover upward. ■ A switch for field setting is not provided in particular. screws 5HPRYDO RI IURQW JULOOH DVVHPEO\ a Remove the 5 screws, in the right and the left, ■ Screw stoppers inside the which fix the main body flap which were equipped in with the front grille. the existing models are not provided. b Disengage the 3 hooks Hooks on the upper part.
6HUYLFH 0DQXDO 3RLQWV 3URFHGXUH 6WHSV 5HPRYH HOHFWULFDO ER[ a Disconnect the Cable ■ Pay attention to the direction clamp of the retainer of the thermistor so that the retainer will not touch the harness (same as the existing models.) Take care not to losw the clip of thermistor b Remove Temperature Heat exchanger thermistor Sensor; Disconnect the Clip Heat exchanger thermistor connection wires.
6HUYLFH 0DQXDO 3RLQWV 3URFHGXUH 6WHSV 5HPRYH SLSLQJ ¿[WXUH a Remove Pipe Clamp Auxiliary piping Piping fixture Auxiliary piping b Adjust the pipeline slightly c Loosen the screws, in the right and the left, Heat exchanger which fix the Evaporator Assy.
6HUYLFH 0DQXDO 3RLQWV 3URFHGXUH 6WHSV 5HPRYH WKH SUHVVXUH SODWH RI PRWRU pressure plate of motor Remove screws of motor press plate and then remove the motor press plate. 5HPRYH VKDIW FXVKLRQ UXEEHU EDVH a Shaft cushion rubber base Remove motor, blade and shaft cushion rubber base. screw b Remove screws on cross flow blade and then remove the motor.
6HUYLFH 0DQXDO 5HPRYDO 3URFHGXUH RI 2XWGRRU 8QLW &DXWLRQ GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO\ EHIRUH UHPRYDO Procedure Steps Points 1. Features Cable Cross Plate sub-assy a Loosen the screw of the cable cross plate subassy and remove it. Pull down the stop valve cover and remove it. Valve Cover 2. Remove top panel Top panel a Loosen the 3 screws (right, left) and lift the top panel.
6HUYLFH 0DQXDO Procedure Steps b c d Twist off the screws connecting the grille and the panel with screwdriver and then remove the grille. Points grille Twist off the screws connecting the panel and the motor support, chassis and grille with screwdriver and then remove the outer case. Twist off the screws connecting right side plate and end plate of condenser, grille, valve support and electric box, and then remove the right side plate. 3.
6HUYLFH 0DQXDO Procedure Steps Points Fan motor fixing frane b Twist off the 4 tapping screws fixing the motor, pull out the pin of leading wire of motor and then remove the motor. Twist off the 2 tapping screws on motor support and 1 screws on electric box, pull it Fan motor upward and then remote the motor support. 4.Remove the electric box. Electrical box Twist off the 2 screws fixing the electric box cover withscrewdriver, pull it upwardly and then remove the electric box cover.
6HUYLFH 0DQXDO Steps Procedure Points 6. Remove compressor 4-Way valve assy a Unsolder the pipeline connected to the compressor. (Release all refrigerant before disassembling the pipeline) Compressor b Twist off the 3 foot nuts on compressor and then remove the compressor. c Twist off the 2 bolts fixing the gas valve, unsolder the soldering joint between gas valve and air return pipe and then remove the gas valve.
6HUYLFH 0DQXDO $SSHQGL[ $SSHQGL[ 5HIHUHQFH 6KHHW RI &HOVLXV DQG )DKUHQKHLW &RQYHUVLRQ IRUPXOD IRU )DKUHQKHLW GHJUHH DQG &HOVLXV GHJUHH 7I 7F[ . 6HW WHPSHUDWXUH Fahrenheit Fahrenheit display Celsius˄ć˅ temperature ˄̧˅ ˄̧˅ 61 60.8 16 62/63 62.6 17 64/65 64.4 18 66/67 66.2 19 68 68 20 Fahrenheit Fahrenheit display Celsius˄ć˅ temperature ˄̧˅ ˄̧˅ 69/70 69.8 21 71/72 71.6 22 73/74 73.4 23 75/76 75.
6HUYLFH 0DQXDO $SSHQGL[ 3LSH ([SDQGLQJ 0HWKRG Pipe 1RWH Pipe cutter ,PSURSHU SLSH H[SDQGLQJ LV WKH PDLQ FDXVH RI UHIULJHUDQW OHDNDJH 3OHDVH H[SDQG WKH SLSH DFFRUGLQJ WR WKH IROORZLQJ VWHSV Leaning A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ● Cut the required pipe with pipe cutter. B:Remove the burrs ● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
6HUYLFH 0DQXDO $SSHQGL[ /LVW RI 5HVLVWDQFH IRU 7HPSHUDWXUH 6HQVRU 5HVLVWDQFH 7DEOH RI $PELHQW 7HPSHUDWXUH 6HQVRU IRU ,QGRRU DQG 2XWGRRU 8QLWV . Temp.(oF) -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 50 51.8 53.6 55.4 57.2 59 60.8 62.6 64.4 66.2 Resistance(kΩ) 138.1 128.6 121.6 115 108.7 102.9 97.4 92.22 87.35 82.75 78.43 74.35 70.5 66.88 63.46 60.23 57.18 54.31 51.59 49.02 46.6 44.31 42.14 40.09 38.15 36.32 34.
6HUYLFH 0DQXDO 5HVLVWDQFH 7DEOH RI 7XEH 7HPSHUDWXUH 6HQVRUV IRU ,QGRRU DQG 2XWGRRU . Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) Temp.(oF) Resistance(kΩ) -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 50 51.8 53.6 55.4 57.2 59 60.8 62.6 64.4 66.2 181.4 171.4 162.1 153.3 145 137.2 129.9 123 116.5 110.3 104.6 99.13 94 89.17 84.61 80.31 76.24 72.41 68.79 65.37 62.13 59.08 56.19 53.
6HUYLFH 0DQXDO 5HVLVWDQFH 7DEOH RI 'LVFKDUJH 7HPSHUDWXUH 6HQVRU IRU 2XWGRRU . Temp.(oF) -20.2 -18.4 -16.6 -14.8 -13 -11.2 -9.4 -7.6 -5.8 -4 -2.2 -0.4 1.4 3.2 5 6.8 8.6 10.4 12.2 14 15.8 17.6 19.4 21.2 23 24.8 26.6 28.4 30.2 32 33.8 35.6 37.4 39.2 41 42.8 44.6 46.4 48.2 Resistance(kΩ) 853.5 799.8 750 703.8 660.8 620.8 580.6 548.9 516.6 486.5 458.3 432 407.4 384.5 362.9 342.8 323.9 306.2 289.6 274 259.3 245.6 232.6 220.5 209 198.3 199.1 178.5 169.5 161 153 145.4 138.3 131.5 125.1 119.1 113.4 108 102.
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