deluxe high wall mini split service manual
Contents
1. Schematic Diagram 1 Heat Pump Cooling Only Series Indoor Unit R04J CN STEPCU D gt 560 IC01J TLP762JF MAIN Viv 5 s RIAC 2 PK RO RTAC G AE MICOM 80 Esse HD6433644P HITACHD xps RA Bv 1 Frequency HvB 64 15916 2122 us RO4H RO2H 2 5 162051646 2 Avec Motor 63 17 STEPPING MOTOR ss a UP DOWN ENTE M ROSH RIGH 4 8 61 CN STEP L I wel 10K 5 Hi pm wol 200 5 5 x 6 Med rpm P31 59 S poll 4 4 HK 1 RK 7 tow rpm p32 58 Ley ss H RUH RIGH al lo or 12 1K sensed 57 4 2 2 1 m Eis RD NN 9 Function2 mo 56 1 a76 1 Sv TO Functicet 55 2 15 STEPPING MOTOR 11 aves 54 L R 14 12 53 al lis BL 5 5 ORSHOR6H E Bem nnt 3 ICOIKCTLP 6a 5 3 3 02K 1K DSCOIB rs vs pes 5o 1SR139 600 1N4007 ep uim osci Paz lao pas fe D wr zn P 20 E n 9 Ee 1 toaca ICOEKCTLP62 Icoa meee a 4 CN STEP L R gt STEPPING MOTOR 36v 18 RESET p80 47 3 L R 1014 TE2. gi CT WS MT BH miM Qt 56 3 DISPLAY P W B ASM E Model HMCO30KD1 HMHO30KD1 e gt gt lee ee x SO E A 9 Q o o RECEIVER 9 9 e 12 1 LED3 9 o OJ O 57
3. INDOOR SPEED Selecting fan speed COMPRESSOR 17 7 Cooling or Heating Mode with Sleep Mode Auto Control When selecting the Cooling or the Heating zx combined with the Sleep Mode Auto Control Z the operation diagram is as following m Cooling Mode with the Sleep Mode The setting temperature will be automatically raised by 2 F 30 minutes later and by 4 1 hour later The operation will be stopped after 1 2 3 4 5 6 7 hours 30 minutes 30 minutes INTAKE AIR TEMP N SETTING TEMP 1 N Compressor ON T SETTING TEMP 1 3 minutes Low Low Compressor OFF INDOOR SPEED COMPRESSOR ON m Heating Mode with the Sleep Mode only Heating Model The operation will be stopped after 1 2 3 4 5 6 7 hours INTAKE AIR TEMP ani SETTING TEMP 6 F Compressor OFF SETTING TEMP Compressor ON INDOOR FAN SPEED Med Low or OFF Med Low or OFF Med Low or OFF COMPRESSOR ON ON OFF ON OFF 18 8 Forced Operation To operate the appliance by force in case that the remote controller is lost the forced operation button is on the main unit of the appliance to operate the appliance in the standard conditions Press the forced operation button the forced operation is carried out Press the forced operation button once again to stop operation In case the power comes on again after power failure on the Forced Ope
4. EPROM nj AE m a lt 7 2 ROZE 20 ROAK RSC7536 5 20 Buzzer 45 680 esit KRCI0PM Sv gt OM ore cH 21 P92 7 m 3 401 Du 22 R24H 20K 5v 1 Mee oft 29 ET mensem GEAR LED DISPLAY ASS Y J Pale RO2F SRO4F 9 OJ4H 38 I 20K 920K HVB ASM A 25 Function Function4 40 ROSE IK 22 AWK CN DISP lt 26 Function3 39 ET 10 10 oa ROR GEO Hoge 27 Air Fresh JJ 007 700 20 12 ols Auto L v L svei2 5 gg 2B estort Auto Restart 57 DJIH DJeH FORCED OPERATON 7 10 97 8 5 RO REO 1 29 operstion Detect 36 53 1 55 ze cen 6 6 6 090420 15102 31 Timer 54 LEDS 1 com RECEIVER s 5 5 1 3259054 55 1C03M 1 22 4 afa IDEE da Dum B 3 5 s s co Sear INDOOR FAN MOTOR LED3 Roars ROILAK amp gppr pr Roar TRG ZNROEJ JE COMFY 2 2 22 51 Frequency HELL EE 5 iex dS 3 EN TRIAC Te 2 2 ZF SH CAPACITOR 2 J 1 1 1N4148 n om 8SuH 18A NF02J ROLI E 5 12 RoD M 1 BETA CN POWER METAL FILM coat NTC 100 9 7275V COMM eo 7805 I AU 3 3 OOk 05 NEUTRAL coeD 20010 144007 IInH7L5A FUSE 2e
5. The connector can be disconnected by pulling it while pressing the connector s hook B Remove the 1 screw for fixing lower panel 2 Insert the connecting cable into the indoor unit from the outdoor unit through the piping hole E Do not connect the cable to the indoor unit B Make a small loop with the cable for easy connection later 3 Remove the lower panel by the arrow Take care not to scratch the wall and mat to drop 24 3 the tubing drain hose and the connecting 5 Connecting the pipings to the indoor unit and drain cable Be sure that the drain hose is located at the hose to drain pipe lowest ofthe bundle Locating the upper side W Align the center of the pipings and sufficiently can cause drain pan to overflow inside the unit tighten the flare nut by hand B Indoor unit tubing Flare nut Pipings E Tighten the flare nut with a wrench Indoor unit tubing Gas side Connecting cable AQ piping ODA Liquid side Drain hose piping NOTE If the drain hose is routed inside the room insulate the hose with an insulation material so that dripping from sweating condensa Maple m Size Torque oamed polyethylene or equivalent is rec Btu h Suction ommended 30K 5 8 6 6kg m 3 8 4 2kg m 4 Indoor unit installation B Hook the indoor unit onto the upper portion of
6. 930 goan PekEaooa 1SR139 600 250V Tea CE FROM OUTDOOR NEGATIVE 35v 39 Anos 2 YO NE Q G 212 Su eer 1 1 lev 220 001 I I 10v 5 B 15 AW 1002 450V C037 Cii AMEN Eu 6 METAL FILM METAL FILM VAM 100nF 275V 220nF 275V I N zooe coen L ves Ed 104 T COSD l 478M 58 2 Heat Pump Series Outdoor Unit LEV1 244 LEV2 atas LEV3 LEVA SHAN DC5V 101A DCSV ROIT ROST 10k RO2A 47K RO3A 100 7036 F B coza 10 sov to JOP5 JOP12 0 01 IN TEMP IN PIPE TMP87CH16 Roem VASS VSS oomen 6 2K ROIH 1K oo 25V I E PUNT PONTO PSTAINT P6S AIN6 PSA AN2 Pest Peat DC5V RO4LROSL 10k 10K ROIK AK cork 0001 25 JOP JG KRC102M R05H 08H cosp 470u 25V ROSH 6 2K ROSH 05H IK gt ICo2D 7805 1 2 2 CN OUT PIPE OUT PIPE n TG0TR TLP621 B 3 1 4 IG02R TLP627 any KRC107M 1SR129 500 RY 4WAY RY 4WAY RY COMP A RY COMP B 2 3 REVERSING VALVE 27 FAN co N AWAY CNCONP COMP A Quen COMPB Qao uve 2 3 NEUTRAL CNPOWER 59 l t ts Par nt
7. Be sure to check for gas leakage time while operating the air conditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 47 Cycle Troubleshooting Guide Trouble analysis 1 Check temperature difference between intake and discharge air and operating current Temp Difference Operating Current Notice Current Temp difference approx 0 C less than 80 of rated current Current Temp difference approx 8 C 14 F less than 80 of rated current Temp difference less than 8 C 14 F Current over the reated current Temp difference over 8 C 14 F All amount of refrigerant leaked out Check refrigeration cycle Refrigerant leakege Clog of refrigeration cycle Defective compressor Excessive amount of refrigerant Normal Temperature difference between intake and discharge air depends on room air humidity When the room air humidity is relativery higher temperature difference is smaller When the room air humidity is relatively lower tem perature difference is larger 2 Check temperature and pressure of refrigeration cycle Suction pressure Compared with the normal value Temperature Compared with the normal valve Cause of Trouble Description Defective compressor Current is low T
8. Outdoor unit Procedure 1 Confirm that both the liquid side valve and the gas side valve are set to the closed position 2 Connect the charge set and a gas cylinder to the service port of the Gas side valve Leave the valve on the gas cylinder closed 3 Air purging Open the valves on the gas cylinder and the charge set Purge the air by loosening the flare nut on the liquid side valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on liquid side valve 4 Check for gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the gas cylinder and dis charge the refrigerant until the gauge indicates 3 to 5 kg cm g 44 6 Disconnect the charge set and the gas cylin der and set the Liquid side and Gas side valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stem nuts and the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage CAUTION Do not leak the gas in the air during Air Purging 2 Balance refrigerant of the 3 way valve Gas leakage Outdoor unit BS fo Procedure 1 Confirm that both the liquid side and gas side 3 Open the val
9. below 64 F 64 F over 86 F 86 F Controlled by the electronic control In this mode when pressing the vertical air direction control button vertical louver swings up and down automatically INTAKE AIR TEMP SETTING TEMP 1 F Compressor OFF SETTING TEMP 1 F Compressor ON INDOOR FAN SPEED COMPRESSOR OFF The electronic control operation ON m Auto Operation for Dehumidification only Heating Model The Setting temperature will be same that of the auto operation for cooling Compressor ON temperature Setting temperature 2 Compressor OFF temperature Setting temperture 1 F Intake air temp below 68 F Over 68 F below 70 F over 86 F Setting temp 68 F Intake air temperature 1 F 86 F m Auto Operation for Heating only Heating Model Compressor ON temperature Setting temperature Compressor OFF temperature Setting temperature 6 F m Vertical louver auto operation During Auto Operation pressing the chaos swing button makes the horizon tal louvers swing up and down automatically If you want to stop auto swing press chaos swing button again 35 5 Healthy Dehumidification When the dehumidification operation input by the remote control is received the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature 26 lt Intake Air
10. DELUXE HIGH WALL MINI SPLIT SERVICE MANUAL MODEL HMCO30KD1 HMHO30KD1 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE PERSONNEL International Comfort Products Contents Functions s us detenti E 3 Product Specifications Q 5 Dime sioRS s 7 Refrigeration Cycle Diagram 9 Pipe Length and the 10 UTERE 11 Operation Details 13 Display Function nennen n ns 20 Self diagnosis Function nnne nennen 20 Dis tea RICE 21 le 37 Disassembly of the parts Indoor Unit RI m m He emnes 39 3 way Valve lll s 43 Cycle Troubleshooting Guide e 48 Electronic Parts Troubleshooting Guide e IH e nennen 49 Electronic Control Device me etra e ee obsidet eed epa ee ut 55 Schematic Diagram mnn nennen nennen nennen nnne 58 Exploded View and Replacement Parts List IR m een 60 Functions Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature sensor THERMISTOR Room temperature control Starting Current
11. Micom No 3 4 Check the indoor room temperature is disconnected or not about 10KQ at 25 Check the indoor pipe temperature is disconnected or not about 5KQ at 25 C Check the DC voltage on the PWB ASS Y The details of check are as followings Comp Relay Outdoor fan Relay CHECK POINT COMP ON COMP OFF CHECK POINT COMP ON COMP OFF Between Micom Between Micom No 15 and GND DESM DC0V No 14 and GND DCSV DCOV Between RY COMP Between RY FAN No 1 and No 4 About DC12V DCOV No 1 and No 4 About DC12V DCOV Between Between CN FAN CN COMP2 and AC 208 230V Below AC10V and AC 208 230V Below AC10V CN POWER 2 N CN POWER 2 N 4 way Relay CHECK POINT COMP ON COMP OFF Between Micom No 13 and GND DESV DCOV Between RY AWAY No 1 and No 4 About DC12V DCOV Between CN 4WAY and AC 208 230V Below AC10V CN POWER 2 N Turn off Main Power Su Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor 4 way Check the open or short of connecting wires between indoor and outdoor 54 Electronic Control Device 1 INDOOR UNIT P W B ASSEMBLY P No 6871A10153 PCB ASSEMBLY MAIN 55 2 OUTDOOR UNIT P W B ASSEMBLY TOP VIEW BOTTOM VIEW Ies qm
12. Procedure 1 Connect the charge hose to the charging cylinder Connect the charge hose which you dis con nected from the vacuum pump to the valve at the bottom of the cylinder f you are using a gas cylinder also use a This is different from previous procedures Because you are charging with liquid refrigerant from the gas side absolutely do not attempt to charge with larger amounts of liquid refrigerant while operating the air conditioner scale and reverse the cylinder so that the sys 4 Immediately disconnect the charge hose from tem can be charged with liquid the 3 way valve s service port 2 Purge the air from the charge hose Stopping partway will allow the gas to be dis Open the valve at the bottom of the cylinder charged MM and press the check valve on the charge set to Ifthe system has been charged with liquid purge the air Be careful of the liquid refriger refrigerant while operating the air conditioner ant The procedure is the same if using a gas turn off the air conditioner before disconnecting cylinder the hose 3 Open the valve Lo side on the charge set and 5 Mount the valve stem nuts and the service charge the system with liquid refrigerant port nut If the system can not be charged with the spec Use torque wrench to tighten the service port ified amount of refrigerant it can be charged nut to a torque of 1 8 kg m with a little at a time approximately 150g each
13. Water Water Waving Tip of drain hose XX dipped in water Less than 50 Water leakage 562 2 Form the piping 1 Form the piping by wrapping the connecting por tion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes E If you want to connect an additional drain hose the end of the drain outlet should be routed above the ground Secure the drain hose appropriately 2 In cases where the outdoor unit is installed below the indoor unit perform the following E Tape the piping drain hose and connecting cable from down to up B Secure the tapped piping along the exterior wall using saddle or equivalent Seal small openings around pipings with a gum type sealer C 30K Trap is required to prevent water from entering into electrical parts 33 3 In cases where the Outdoor unit is installed above the Indoor unit perform the following B Tape the piping and connecting cable from down to up ll Secure the taped piping along the exterior wall Form a trap to prevent water entering the room B Fix the piping onto the wall by saddle or equiva lent Seal a small opening around the pipings with gum type sealer SER CSS NS E lt S as lt 30K 4 AIR PURGING 1 Air purging Air and moisture remaining in the refrigerant system have undes
14. e m Repla iew Vie ed d lo Exp nit door U In 1 q Wi y E gt b 5 NS Hh Is m p lt s S e Parts List Indoor BACATION DESCRIPTION REMARKS NO HMC030KD1 HMH030KD1 131410 CHASSIS ASSEMBLY 3141A10001D 3141A10001D 135311 GRILLE ASSEMBLY DISCHARGE INDOOR 3531A10056M 3531A10056M 135312 GRILLE ASSEMBLY FRONT INDOOR 3531A10058M 3531A10058M 135313 GRILLE ASSEMBLY INLET 3531A10060F 3531A10060F 135314 GRILLE INLET 3530A10042B 3530A10042B 135315 GRILLE ASSEMBLY FRONT INDOOR 3531A10057V 3531A10057V 146811 1 MOTOR ASSEMBLY STEP 4681AR2727B 4681AR2727B 146811 2 MOTOR ASSEMBLY STEP 147582 LOUVER VERTICAL 4758A30018A 4758A30018A 152302 FILTER MECH A C 5230A10001A 5230A10001A 152313 FILTER ASSEMBLY DEODORIZER 5231A20032F 5231A20032F 159901 VANE HORIZONTAL 5990A20003B 5990A20003B 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20337H 4995A20337H 263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 267110 REMOTE CONTROLLER ASSEMBLY 6711A20025M 6711A20025M 268712 PWB PCB ASSY DISPLAY 6871A20108A 6871A20108A 268714 PWB PCB ASSEMBLY MAIN 6871A10153B 6871A10153B 342800 BEARING 4280A20003A 4280A20003A 342801 BEARING 4280A20001A 4280A20001A 346810 MOTOR ASSEMBLY INDOOR 4681 AP2632H 4681 AP2632H 35211B TUBE ASSY TUBI
15. Control Indoor fan is delayed for 5 seconds at the starting Time Delay Safety Control Restarting is inhibited for approx 3 minutes Indoor Fan Speed Control High Med Low and Auto Operation indication Lamps LED D Lights up in operation Maintains the room temperature in accordance with the Setting Temp pi s Lights up in Sleep Mode Lights up in Timer Mode 3 Lights up in Defrost Mode or Hot Start Mode only Heating Model er Lights up during compressor running only Cooling Model Healthy Dehumidification Mode Intermittent operation of fan at low speed Sleep Mode Auto Control The fan is switched to low Cooling med Heating speed The unit will be stopped after 1 2 3 4 5 6 7 hours Auto Air Control by the unit electronic control The fan is switched to intermittent or irregular operation The fan speed is automatically switched from high to low speed Chaos Swing The louver can be set at the desired position or swing up and down automatically Defrost control Heating Both the indoor and outdoor fan stops during defrosting Hot start will be operated after defrosting ends Hot start Control Heating The indoor fan stops until the indoor pipe temperature will be reached at 28 C 82 F Remote Controller Operation ON
16. Select a place where there are no obstacles in front of the unit E Make sure that condensation drainage can be con veniently routed away Do not install near a doorway E Ensure that the space around the left and right of the unit is more than 30cm 12 The unit should be installed as high on the wall as possible allowing a minimum of 12cm 4 8 from ceiling E Use a stud finder to locate studs to prevent unnec essary damage to the wall More than 30cm 12 More than 30cm 12 CAUTION Install the indoor unit on the wall where the height from the floors more than 2 3meters 7 5ft A minimum pipe run of 7 5meters 25ft is required to minimise vibration amp excessive noise a N J N J 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure make sure that heat radiation from the con denser is not restricted E Ensure that the space around the back and sides is more than 10cm 4 The front of the unit should have more than 70cm 28 of space E Do not place animals and plants in the path of the warm air Take the air conditioner weight into account and select a place where noise and vibration are minimum Select a place so that the warm air and noise from the air con ditioner do not disturb neighbors More than 60 24 than than a 10cm 4 10cm 4 More than More than 70cm 28 By 60cm 24 E Roofto
17. Temp 2 25 24 C lt Intake Intake Air Temp lt 26 C 2 Intake Air 1 18 lt Intake Intake Air Temp lt 24 C 2 Intake Air Temp 0 5 C Intake Air Temp lt 18 C 2 18 C While in compressor off the indoor fan repeats low airflow speed and pause While the intake air temp is between compressor on temp and compressor off temp 10 min dehumidification operation and 4 min compressor off repeat Compressor ON Temp 2 Setting Temp 0 5 C Compressor OFF Temp 2 Setting Temp 0 5 C In 10 min dehumidification operation the indoor fan operates with the low airflow speed zs 6 Heating Operation Mode only Heating Model The unit will operate according to the setting conditions by the remote controller The operation diagram is shown below INTAKE AIR TEMP SETTING TEMP 6 Compressor OFF SETTING S Compressor ON I Selecting Selecting A point While the indoor pipe temperature is higher than 95 F indoor fan operates at low speed When the indoor pipe temperature becomes lower than 95 F indoor fan stops B point When the indoor pipe temperature is higher than 38 C 100 F fan operates at selected fan speed ies m Hot Start Control The indoor fan stops until the indoor pipe temperature will be reached at 82 F During heating operation if indoor pipe temperature falls below 78 F fan stops The operation diagram is shown below INDOOR PIPE TEMP 82 78
18. be complied with the following specifications UL and CSA recognized one AWG 20 Main power source Outdoor Disconnect Switch Must be rated for 30 amps Outdoor unit 61cm max 24 in max 2 Connect the cable to the outdoor unit Outdoor Unit Terminal block 1 Remove the control cover from the unit by loosen ing the screw Connect the wires to the terminals on the control board individually Over 5mm 2 Secure the cable onto the control board with the cord clamp Connecting cable 3 Refix the control cover to the original position with the screw The power connecting cable 4 Use a recognized circuit breaker 30A 30k 32k 35A 36k 38k between the power source and the unit A disconnecting device to adequately discon nect all supply lines must be fitted Cover control 30K A CAUTION After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power
19. unit Outdoor unit Indoor unit Oil r LY Indoor unit In case more than 5m 16 4ft CAUTION Capicity is based on standard length and maximum allowance length is the basis of reliability Oil trap should be installed per 5 7 meters 16 4 23 0ft 210 Wiring Diagram 1 Indoor Unit Cooling Only Models amp Heating Models WIRING DIAGRAM CN MOTOR 1 5 THERMISTOR STEP MOTOR UP DOWN CN U D CN TH H V B ASM CN POWER x q fo FUSE AC250V T2A Negative ion N STEP LIMITS S W MOTOR UR PILLAR TERMINAL CN DISP 2 DISPLAY PCB ASM TO OUTDOOR UNIT AUTO RESTART FORCED OPERATION 3854A20065A 11 2 Outdoor Unit Cooling Only Models WIRING DIAGRAM 9 CN POWER aro FUSE 250V3A 3 Ur 3503 g 2 U Q 2 CN CON I3 PIPE IN f TEMP IN 8 COIL EXPANSION Heating Models FUSE 250V
20. with tubing length and capacity of the pump The following table shows the time required for evacuation Required time for evacuation when 30 gal h vacuum pump is used If tubing length is less If tubing length is longer than 10m 33 ft than 10m 33 ft 10 min or more 15 min or more B When the desired vacuum is reached close the Lo knob of the manifold valve and stop the vacuum pump 4 Finishing the job B With a service valve wrench turn the valve stem of liquid side valve counter clockwise to fully open the valve Bi Turn the valve stem of gas side valve counter clockwise to fully open the valve E Loosen the charge hose connected to the gas side service port slightly to release the pressure then remove the hose B Replace the flare nut and its bonnet on the gas side service port and fasten the flare nut securely with an adjustable wrench This process is very important to prevent leakage from the system B Replace the valve caps at both gas and liquid side service valves and fasten them tight This completes air purging with a vacuum pump The air conditioner is now ready to test run 35 Gas side 3 way valve Close 3 way valve Open Hexagonal wrench Liquid side Cap Indoor unit Ca Outdoor unit 5 TEST RUNNING 1 Check that all tubing wiring have been erly connected 2 Check that the g
21. 3A H3MOd HOOQNI OL 5 3914 CN CON g dWO2 AH PIPE IN E TEMP IN ES COIL EXPANSION xd F4 CAPACITOR A 3854A20153X Operation Details 1 The function of main control 1 Time delay Safety Control 3min The compressor operation is delayed for 3 minutes to balance the pressure of cycle Protection of compressor 5sec The indoor fan is delayed for 5 seconds when operating initially to prevent noises occurred by the vertical louver and wind 2min The reversing valve is delayed for 2 minutes to prevent the refrigerant gas for abnormal noise when the heating operation is OFF or switched to the other operation mode while compressor is off While compressor is running it takes 3 5 seconds to switch 2 Chaos Swing Mode By the Chaos Swing key input the upper lower vane automatically operates with the Chaos Swing or they are fixed to the desired direction While in Chaos Swing mode the angles of cooling and heating cycle operations are different Cooling Mode gt Heating Mode gt CLOSED 3 Cooling Operation Mode When selecting the Cooling 3 amp Mode Operation the unit will operate according to the setting by the remote control and the operation diagram is shown below INTAKE AIR TEMP N SETTING TEMP 1 LN SETTING TEM
22. Defective 4 way reverse valve Naher Excessive amount of High pressure does not quickly Normal refrigerant rise at the beginning of operation Insufficient amount of Current is low Lower Higher refrigerant Leakage Clogging Current is low Notice 1 The suction pressure is usually 4 5 6 0 kg cm G Cooling at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty 48 Electronic Parts Troubleshooting Guide 1 Product does not operate at all Refer to Electronic Control Device drawing and Schematic diagram Turn off Main Power IL After 10 seconds Turn on Main Power Does beeping sound is made from the Indoor Unit SEE Check the voltage of power About AC 220V AC240V 50Hz Primarily the operating condition of Micom is OK Main power s voltage Voltage applied to the unit Check PWB Ass y Fuse Pattern damage Varistor ZNRO 1 J Connecting method of Indoor Outdoor connecting cable Lt Check each Lt Connector related to CN POWER Connector related to CN MOTOR Display PWB Ass y Check Check the connection housing for contacting Connector contacting of Outdoor Fan Compressor load Indoor Outdoor Fan Motor Compressor Stepping Motor and contacting condition of relat
23. ISOLATOR COMP 4H00982E 4H00982E 550140 2 ISOLATOR COMP 4H00637A 4H00637A 552111 TUBE ASSEMBLY CAPILLARY 5211A20034X 5211A20034X 552116 TUBE ASSEMBLY REVERSING 5211A20057B 552201 VALVE CHECK 3A01020H 3A01020H 552202 VALVE REVERSING 3A02027J 552203 1 VALVE SERVICE 2A00393H 2A00393H 552208 2 VALVE SERVICE 2A00392N 2A00392N 554031 CONDENSER ASSEMBLY BENT 6140AP2096A 6140AP2096Q 554160 1 COMPRESSOR SET 2520UKVK2BA 2520UKVK2BA 554160 2 COMPRESSOR SET 2520UHAK2AA 2520UHAK2AA 559010 FAN ASSEMBLY PROPELLER 1A00195G 1A00195G 561410 COIL ASSEMBLY REVERSING VALVE 6141AR3733R 566000 SWITCH PRESSURE 3A02524A 567502 O L P 6750U L063A 6750U L063A 649950 CONTROL BOX ASSEMBLY OUTDOOR 4995A20383D 4995A20383C 668711 PWB PCB ASSEMBLY MAIN OUTDOOR 6871A20514A 6871A20514B W0CZZ CAPACITOR DRAWING 6120AR2194F 6120AR2194F W0CZZ CAPACITOR DRAWING 2A00986Y 2A00986Y 63 April 2004 P No 3828A20390Q Printed in Korea
24. NG 5211A20200A 5211A20200A 352150 HOSE ASSY DRAIN 5251AR1222P 5251AR1222P 352390 1 AIR GUIDE ASSEMBLY 5239A10001A 5239A10001A 352390 2 AIR GUIDE ASSEMBLY 5239A10001B 5239A10001B 354210 EVAPORATOR ASSEMBLY FIRST 5421A20058A 5421A20057A 359011 1 FAN ASSY CROSS FLOW 5901AR2441G 5901AR2441G 359011 2 FAN ASSY CROSS FLOW 5901AR2441F 5901AR2441F 733010 PLATE ASSY INSTALL 3301A10001A 3301A10001A W0CZZ CAPACITOR DRAWING 3H01487G 3H01487G NOTE Please ensure GCSC since these parts may be changed depending upon the buyer s request GCSC WEBSITE http biz LGservice com 61 2 Outdoor Unit Parts List Outdoor LOCATION DESCRIPTION REMARKS NO HMC030KD1 HMH030KD1 137213 1 PANEL ASSEMBLY SIDE 1A00202F 1A00202F 137213 2 PANEL ASSY SIDE 1A00202G 1A00202G 263230 THERMISTOR ASSEMBLY 6323A20002L 6323A20002L 430410 BASE ASSY OUTDOOR 3041AP2741L 3041AP2741L 435301 GRILLE DISCHARGE 3530A20007J 3530A20007J 435511 COVER ASSY CONTROL OUTDOOR 3551AR7184T 3551AR7184T 435512 COVER ASSEMBLY TOP OUTDOOR 3H03266H 3H03266H 437210 PANEL ASSY FRONT SUB 1 00197 1 00197 447910 BARRIER ASSEMBLY OUTDOOR 4791A30004G 4791A30004G 546810 MOTOR ASSEMBLY AC 4681 A20008E 4681 A20008E 549610 MOUNT ASSY MOTOR OUTDOOR 2A01035T 2A01035T 550140 1
25. OFF P Operation Mode Selection oS ao Cooling Operation Mode Auto Operation Mode A Healthy Dehumidification Operation Mode Heating Operation Mode 3 Fan Speed Selection B L Med High CHAOS Q sU mui High High 39 C Low 11 C Temperature Setting TEMPERATURE LOW HIGH Down to 18 Heating Down to 16 Cooling gt Up to 30 Up to 30 C COOL EN Setting the Time or Timer Timer Selection ON D OFF Timer Setting SE Timer Cancel CANCEL OFF OFF lt q ON Sleep Operation Airflow Direction Control Cancel Sleep Mode Timer ON or Timer OFF Fan Operation Mode 1 2 3 4 5 6 7 Off Timer Horizontal Airflow Direction Control Button Option N Fan Operates without cooling or heating 0418052102210 0 2 0 RESET Product Specifications Cooling Only Items Unit HMCO030KD1 Power Supply 0 V Hz 230 208 60 Cooling Capacity BTU h 28 000 27 000 Input W 3 600 3 450 Running Current 16 0 16 5 Locked Rotor A 68 E E R BTU hW 7 81 7 79 Air Circulation 21 740 Moisture Removal l h pts hr 3 7 7 8 Noise Level Indoor High dB A 49 Sound Med
26. P 1 F Compressor OFF More than 3 minutes INDOOR FAN SPEED Setting Setting oi Setting fan speed fan speed fan speed m Protection of the indoor heat exchanger from frosting e Compressor and outdoor fan stop when indoor pipe temperature is below 0 C 32 F and restart at the pipe temperature is above 7 C 45 F 13 Auto Operation Electronic control mode The operation procedure is shown below Cooling amp Heating Model Press Start Stop Button Y Select Auto Operation Mode Y Check the Room temperature Y Operation mode Indoor fan speed Setting temperature are decided automatically by the unit electronic control Intake air 5 Over below temperature EMT 70 F 76 F Heating Soft Dry Cooling If initial mode is decided that mode is continued without the room temperature changing m Auto Operation for Cooling Operation Condition Intake air Temperature Setting Temperature Fan Speed Air Direction Control When Auto Operation initial start When pressing room temperature setting button during Auto Operation Over 78 F 77 Over 76 F below 78 F Over 72 F below 76 F Intake air 1 C Intake air 0 5 C Over 68 F below 72 F Intake air temperature below 64 F Over 64 F below 86 F 64 F Electronic control
27. a liquid state the top of the cylinder must be higher than its bottom when you pressurize the system Usually the cylinder is used in a vertical standing position E Do a leak test of all joints of the tubing both indoor and outdoor and both gas and liquid side service valves Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth E After the system is found to be free of leaks relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder When the system pressure is reduced to normal disconnect the hose from the cylinder Indoor unit Nitrogen gas cylinder in vertical standing position Soap water method 1 Remove the caps from the gas side and liquid side valves 2 Remove the service port cap from the gas side valve 3 To open the gas side valve turn the valve stem counter clockwise approximately 90 wait for about 2 3 sec and close it 4 Apply a soap water or a liquid neutral detergent on the indoor unit connection or outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping 5 If bubbles come out the pipes have leakage 3 Evacuation B Connect the charge hose end described in the preceding steps to the vacuum pump to evacuate the tubing and indoor unit Confirm the Lo knob of the manifold valve is open Then run the vacuum pump The operation time for evacuation varies
28. as and liquid side service valves are fully open Prepare remote control 4 Remove the battery cover by pulling it according to the arrow direction 2 Insert new batteries making sure that the and of battery are installed correctly 3 Reattach the cover by pushing it back into position NOTE Use 2 AAA 1 5volt batteries Do not use rechargeable batteries Hemove the batteries from the remote control if the system is not going to be used for a long time Settlement of outdoor unit B Anchor the outdoor unit with a bolt and nut o 10mm tightly and horizontally on a concrete or rigid mount E When installing on the wall roof or rooftop anchor the mounting base securely with a nail or wire assuming the influence of wind and earthquake E In the case when the vibration of the unit is con veyed to the hose secure the unit with an anti vibration rubber Bolt Tubing connection Evaluation of the performance Operate unit for 15 20 minutes then check the sys tem refrigerant charge 1 Measure the pressure of the gas side service valve 2 Measure the temperature of the intake and dis charge of air 3 Ensure the difference between the intake temper ature and the discharge is more than 8 Cooling or reversely Heating Discharge air Discharge temperature 4 For reference the gas side pressure of optimum condition is as below Cooling Outsi
29. d Operation Button Lights up during the system operation Lights up during Timer operation or Sleep mode Lights up during Defrost Mode or Hot Start operation Heat pump model only Lights up during outdoor unit operation Cooling model only Lights up during if Restart Button is pressed In failure of electric power if the button is pressed the unit runs as previous setting operation when power returns Operation starts when this button is pressed and stops when you press the button again Self diagnosis Function Error Error LED Code Indoor body operation LED Error contents SVC check point Indoor room temperature once thermistor open short Indoor pipe temperature nicorae check lt 3sec 3sec P sec P thermistor open short twice 2 Outdoor pipe temperature ls Outdoor TH assy check thermistor open short 3sec 3sec Btimes ess 5 Poor communication Communication line circuit check 20 Installation Read completely then follow step by step 1 Installation of Indoor Outdoor unit Installation Parts Provided 3 Type B screw 4 Holder Remote Control 1 Select the best location 1 Indoor unit E Do not have any heat or steam near the unit Bi
30. dB A 46 Pressure 1m Low dB A 43 Outdoor Max dB A 63 Features Temperature Control Thermistor Air Deflection 4 way Steps Fan Cool 3 3 Airflow Direction Control up amp down Auto Airflow Direction Control left amp right Manual Remocon Type Wireless LCD Setting Temperature Range Cooling Mode 64 86 F Temperature Increment 2 Auto Operation electronic control Yes Self Diagnosis Yes Timer 24hr On Of Sleep Operation Yes Healthy Dehumidification Mode Yes Restart Delay minutes 3 Refrigerant R 22 Charge g oz 2550 89 9 Power cord AWG 4 P mm 14 3 2 5 Fuse or breaker Capacity A 30A Connecting Cable AWG P mm 16 4 0 75 Connecting Tube Liquid Side mm in 6 35 1 4 6 Socket Flare Gas Side mm in 12 7 1 2 Length std m ft 7 62 25 Additional Drain Hose Outer Dia mm in 15 5 5 8 Dimensions Indoor mm 1259 349 205 WxHxD in 49 6 13 7 8 1 Outdoor mm 870 800 320 in 34 3 31 5 12 6 Net Weight Indoor kg lbs 20 Outdoor kg lbs 71 Design and Specifications subject to change without prior notice for product improvement Product Specifications Cooling amp Heating Items Unit HMHO30KD1 Power Supply 0 V Hz 1 230 208 60 Cooling Capacity BTU h 28 000 27 000 Heating Capacity BTU h 29 000 28 000 Input Cooling W 3 600 3 450 Heating W 3 750 3 550 Runnin
31. de ambient TEMP The pressure the gas side service valve 35 C 95 F 4 5kg cm G 56 8 71 0 P S I G NOTE f the actual pressure are higher than shown the system is most likely over charged and charge should be removed If the actual pres sure are lower than shown the system is most likely undercharged and charge should be added The air conditioner is now ready for use PUMP DOWN This is performed when the unit is to be relocated or the refrigerant circuit is serviced Pump Down means collecting all refrigerant in the out door unit without loss in refrigerant gas CAUTION Be sure to perform Pump Down procedure with the unit cooling mode Pump Down Procedure Connect a low pressure gauge manifold hose to the charge port on the gas side service valve Open the gas side service valve halfway and purge the air from the manifold hose using the refrigerant gas Close the liquid side service valve all the way in Turn on the unit s operating switch and start the cool ing operation When the low pressure gauge reading becomes 1 to 0 5kg cm G 14 2 to 7 1 P S I G fully close the gas side valve stem and then quickly turn off the unit At that time Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit 36 Operation 1 Name and Function Remote Control Cooling Models Remote Controller Signal transmitter Transmits
32. e the sensor housing connector earth conductor and step motor conductor with sensor Lis RAT holder Motor Evaporator and P C B SW Earth Power Sensor ne Conductor Step Motor Conductor Conductor LH I pw 3 remove the Control Box Remove the 5 securing screws Pull the control box out from the chassis carefully i ille 4 remove the Discharge Grille SS EM discharge grille Sh downward slightly unhook the discharge grille by Pull the discharge grille out from the chassis iy ire u S Ve carefully 5 A IG 5 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA at the right 1EA Remove 2 screws securing the evaporator clamp U bl IT Screw lQ QA for clamp gt q 2 2 line 2 Ke 2 KES J an IV NA gt gt A lt s PU toward you until the tab is clear of the slot 7 GL 41 6 To remove the Fan motor Loosen the screw securing the cross flow fan to the fan motor do not remove Fan motor e Loosen the screw securing the mount motor 5 E 2 o i Separate the fan motor from the cross flow fan Take care not to drop the mot
33. ed connector Items Content Remedy Power Transformer Outdoor unit Input Voltage Output Voltage b e C01D 7812 Output Outdoor unit b IC02D 7805 Output Outdoor unit IC04D 7805 Output Indoor unit e IC01A KIA7036 Reset IC OSC01B 8MHz Indoor unit e 7036 Reset IC OSCO01B 4MHz Outdoor unit About AC220V 240V 1056 Check the power voltage About 14 DC 12V 5V Voltage of Micom 2 Indoor unit DC 4 5V over and Soldering condition No 5 Outdoor unit Replace Trans e Replace ICO1D Outdoor unit Replace IC02D Outdoor unit ICO4D Indoor unit Replace faulty parts 49 2 The product is not operate with the remote controller Turn on Main Power While the compressor has been stopped the compressor does not operate owing to the delaying function for 3 minutes after stopped i low speed by force When the compressor stopped Indoor Fan is driven by a low speed At this point the wind speed is not controlled by the remote controller When operated in the Sleeping Mode the wind speed is set to the d Sub Cause by the remote controller Caused by other parts except the remote controller d When the mark d is displayed in LCD screen replace battery d When the detect switch double key inside the remote control
34. g Current Cooling 16 0 16 5 Heating A 16 5 17 0 COMP Locked Cooling A 68 Rotor Heating A 68 E E R BTU hW 7 78 7 82 0 0 2 26 2 30 Air Circulation m min cfm 21 740 Moisture Removal l h pts hr 3 7 7 8 Noise Level Indoor High dB A 49 Sound Med dB A 46 Pressure 1m Low dB A 43 Outdoor Max dB A 63 Features Temperature Control Thermistor Air Deflection 4 way Steps Fan Cool Heat 3 3 3 Airflow Direction Control up amp down Auto Airflow Direction Control left amp right Manual Remocon Type Wireless LCD Setting Temperature Range Cooling Mode 64 86 F Heating Mode 60 86 F Temperature Increment 2 Auto Operation electronic control Yes Self Diagnosis Yes Timer 24hr On Off Sleep Operation Yes Healthy Dehumidification Mode Yes Restart Delay minutes 3 Defrost Control Yes Hot Start Yes Refrigerant R 22 Charge 0 02 2550 89 9 AWG 14 3 2 5 Fuse or breaker Capacity 30 Connecting Cable AWG 18 4 0 75 Connecting Tube Liquid Side mm in 9 52 3 8 Socket Flare Gas Side mm in 15 88 5 8 Length std m ft 7 62 25 Additional Drain Hose Outer Dia mm in 15 5 5 8 Dimensions Indoor mm 1259 349 205 WxHxD in 49 6 13 7 8 1 Outdoor mm 770 540 245 870 800 320 in 34 3 31 5 12 6 Net Weight Indoor kg lbs 20 Outdoor kg lbs 33 72 8 71 Design and Specifications subject to change without prior notice for product improvement Dimensions 1 Indoor Unit Tubi
35. hose B Securely insert both the rubber plug and drain hose into the drain outlets Be sure the rubber the cap is securely fastened so that there is no leakage 2 Finally tighten the flare nut with torque wrench until the wrench clicks E When tightening the flare nut with torque wrench ensure the direction for tightening follows the arrow on the wrench Capacity Pipe Size Torque Btu h Suction Evaporator 30K 5 8 6 6kg m 3 8 4 2kg m Outdoor unit Gas side piping Bigger diameter Liquid side piping Smaller diameter Torque wrench 29 3 Connecting the cable between indoor unit and outdoor unit 1 Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually according to the outdoor unit connection Ensure that the color of the wires of the outdoor unit and the terminal No are the same as those of the indoor unit Color of Wires G Y BROWN BLUE RED G Y BROWN BLUE RED Color of Wires POWER INPUT A CAUTION Wiring must be as following diagram Disconnect Switch Optional May be required by local codes Must be rated for 15 amps 24 in max CAUTION The power supply cord connected to the outdoor unit should be complied with the following specifications UL and CSA recognized one AWG 1H2 The connecting cable connected to the indoor and outdoor unit should
36. ing O Pipe N Reamer ND Point down 3 Putting nut on B Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having complet ed burr removal not possible to put them on after flaring work Flare nut Copper tube 4 Flaring work B Carry out flaring work using flaring tool as shown below Outside diameter A mm inch mm 96 35 1 4 0 0 5 09 52 3 8 0 0 5 012 7 1 2 0 0 5 215 88 5 8 0 1 0 Firmly hold copper pipe in a die in the dimension shown in the table above Handle lt EN Cone Clamp nande Red arrow mark 5 Check E Compare the flared work with figure below E If flare is noted to be defective cut off the flared section and do flaring work again Smooth all round Inside is shiny without scratches di y Improper flaring Inclined_ lt Surface Cracked Uneven damaged thickness Even length all round 23 2 Connection of piping Indoor CAUTION 1 Remove the 2 screws of right side panel When install make sure that the remaining parts must be removed clearly so as not to damage the piping and drain hose especially power cord and connecting cable For left rear piping 1 Route the indoor tubing and the drain hose in the 2 Remove the front right side panel by the arrow direction of rear left
37. irable effects as indicated below WB Pressure in the system rises E Operating current rises E Cooling or heating efficiency drops B Moisture in the refrigerant circuit may freeze and block capillary tubing E Water may lead to corrosion of parts in the refrig eration system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncondensables and moisture from the system 2 Air purging with vacuum pump 1 Preparation Check that each tube both liquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring for the test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves on the outdoor unit are kept closed at this stage 2 Leak test E Connect the manifold valve with pressure gauges and dry nitrogen gas cylinder to this service port with charge hoses N CAUTION Be sure to use a manifold valve for air purging If it is not available use a stop valve for this purpose The Hi knob of the manifold valve must always be kept close E Pressurize the system to no more than 150 P S I G with dry nitrogen gas and close the cylinder valve when the gauge reading reached 150 P S I G Next test for leaks with liquid soap A CAUTION To avoid nitrogen entering the refrigerant system in
38. ler door is fault it is impossible to operate temperature regulating and wind speed selecting d Check the contact CN DISP connector Lt Check DISP PWB Ass y Voltage between CN DISP do DC Check the connecting circuit between the remote controller MICOM No R17 2Q IR LED Q1 R16 2 2KQ Lt Check point Check the connecting circuit between PIN Re1L 1K Ce1L 680PF MICOM PIN Check Receiver Ass y 50 3 Compressor Outdoor Fan are unable to drive Turn on Main Power d Operate Cooling Mode sk by setting the desired temperature of the remote controller is less than one of the indoor temperature by 1 C at least d When in Air Circulation Mode Compressor Outdoor Fan is stopped d Check the sensor for indoor temperature is attached as close as to be effected by the tempera ture of Heat Exchanger EVA d When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged Compressor Outdoor Fan is stopped Check the related circuit of RO2H 12 1K RO4H 6 2K Micom No 3 4 Indoor unit Check the related circuit of RO4H 6 2K Micom No 3 Output unit e Check the indoor temperature sensor is disconnected or not About 10kQ at 25 d Check Relay RY COMP2 for driving compressor Outd
39. n pipe heat insulation and the indoor unit pipe heat insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material mea cU sect E Wrap the area which accommodates the rear piping housing section with vinyl tape 4 Indoor Connection abet m unit piping pipe Vinyl tape Wrap with vinyl tape wide Pipe Vinyl tape narrow Connecting cable 27 B Bundle the piping and drain hose together by 9 Reinstall the parts to the original position wrapping them with cloth tape over the range E Refix the lower panel to the original position within which they fit into the rear piping housing section Pipe Drain hose Vinyl tape narrow Wrap with vinyl tape wide 8 Reroute the pipings and the drain hose across the back of the chassis Piping for passage through piping fiole E Refix the front right side panel to the original position with the two screws 28 3 Connection of the drain hose 4 Connection of piping Outdoor B The drain hose can be connected at two different positions Use the most convenient position and if 1 Align the center of the pipings and sufficiently necessary exchange the position of the drain tighten the flare nut by hand pan rubber cap and the drain hose Drain pan Rubber cap Drain hose Exchange if necessary B Remove the drain
40. ng hole cover lt C oo 5 InN ceo 8 S 5 8 mee E E E o c IO SIS 2 Outdoor Unit Gas side 3 way valve Liquid side 3 way valve MODEL DIM 30K SERIES mm in ch 870 34 3 H mm in ch 800 31 5 D mm in ch 320 12 6 L1 mm in ch 370 14 6 L2 mm in ch 340 13 4 L3 mm in ch 25 1 0 L4 mm in ch 775 30 5 L5 mm in ch 25 1 0 L6 mm in ch 546 21 5 L7 mm in ch 162 6 4 L8 mm in ch 162 6 4 L9 mm in ch 54 2 1 L10 mm in ch 74 5 2 9 L11 mm in ch 79 3 1 Refrigeration Cycle Diagram 1 Cooling Only Models INDOOR UNIT OUTDOOR UNIT CAPILLARY TUBE HEAT HEAT EXCHANGER EXCHANGER EVAPORATOR CONDENSER Q E 0 m Q Q 2 2 Cooling Heating Models INDOOR UNIT OUTDOOR UNIT lt __ CHECK VALVE Heating Model only lt 500 CAPILLARY TUBE Evaporator Line HEAT EXCHANGER EXCHANGER EVAPORATOR CONDENSER VALVE Heating Model Only Pipe length and the elevation Pipe Size Standard Max Max Additional Prud Length Elevation Length Refrigerant GAS LIQUID m ft m ft A m ft g m oz ft 30k 50Hz 60Hz 5 8 3 8 7 5 25 15 50 30 100 30 0 32 Outdoor
41. obtained and to cancel the Timer operation SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature F SELECTING BUTTON Choose temperature unit C or F alternatively HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON NOT ON ALL MODELS Used to set the desired horizontal airflow direction RESET BUTTON Used prior to resetting time or after replacing batteries 38 Disassembly of the parts Indoor unit Warning Disconnect the unit from power supply before making any checks Be sure the power switch is set to OFF 1 To remove the Grille from the Chassis Remove the 2 screws of right side panel Remove the front right side panel by the arrow B The connector can be disconnected by pulling it while pressing the connector s hook B Remove the 1 screw for fixing low panel e Remove the lower panel by the arrow B Take care not to scratch the wall and mat to drop Remove the left side pane Remove the 2 screws 39 6 Remove the grille from the chassis Remove the 4 securing screws 30K 32K Remove the 5 securing screws 36K 38K To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 2 To remov
42. oor unit When the power About AC220V 240V is applied to the connecting wire terminal support transferred to compressor PWB Ass y is normal Check the circuit related to the relay Check point COMP ON COMP OFF Between Micom No 15 and GND DC5V DCOV Between Relay G5N 1A No 1 and G5N 1A No 4 Between CN COMP2 and CN POWER 2 N DC12V DCOV AC 208 230V Below AC 10V sok Turn off Main Power l1 Check the electrical wiring diagram of outdoor side Check the abnormal condition for the component of Compressor Outdoor Fan Motor Check the open or short of conmecting wires between indoor and outdoor 51 4 When indoor Fan does not operate Turn off Main power d Check the connection of CN MOTOR d Check the Fan Motor d Check the Fuse AC250V T2A d Check the related circuit of indoor Fan Motor The pin NO 63 of Micom and the part for driving TRIAC the input and output signal of ICO1M PIN NO 2 15 Check the pattern Check the TRIAC TRIAC Open Indoor Fan Motor never operate TRIAC short Indoor Fan Motor always operates in case of ON or OFF d Turn ON Main Power d Check the TRIAC high speed operation by Remocon The Indoor Fan Motor is connected The voltage of PIN NO 1 blue and 3 yellow of CN MOTOR lI Abo
43. or Flow Fan 7 To remove the Cross Loosen the screw securing the holder bearing Lift up the cross flow fan Holder bearing 3 way Valve 1 Pump down Purge the air Liquid side Outdoor unit Procedure 1 Confirm that both liquid side and gas side valves are set to the open position 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 2 Operate the unit for 10 to 15 minutes 9 Stop operation and wait for 3 minutes then connect the charge set to the service port of the Gas side valve Connect the charge hose to the service port 4 Air purging of the charge hose Open the low pressure valve on the charge set slightly to air purge from the charge hose 5 Set the liquid side valve to the closed position 43 6 Operate the air conditioner in cooling mode and stop it when the gauge indicates 1kg cm g 7 Immediately set the Gas side valve to the closed position Do this quickly so that the gauge ends up indi cating 3 to 5kg cm g 8 Disconnect the charge set and mount the Liquid side and Gas side valve s stem nuts and the service port nut Use torque wrench to tighten the service port nut to a torque of 1 8 kg m Be sure to check for gas leakage 1 Re air purging Re installation 7 Gas cylinder
44. ount the installation plate horizontally by aligning the centerline using a level ics Y gning g ee Sem 5 7mm 0 2 0 3 Type A screw 1 D4 0 L38 0 MSR3 FZW 2 Measure the wall and mark the centerline It is also important to use caution concerning the location of the installation plate routing of the wiring to power outlets is through the walls typically Drilling the hole through the wall for piping con nections must be done safely Left rear piping Right rear piping II NW 5 N 1 Hi 3 E O 7660 909 j 180mm 270mm 2 76 50mm 2 0 72 30K 22 2 Flaring Work and Connection of Piping 1 Flaring work Main cause for gas leakage is due to defect in flar ing work Carry out correct flaring work in the follow ing procedure Cut the pipes and the cable E Use the piping kit accessory or the pipes purchased locally B Measure the distance between the indoor and the outdoor unit E Cut the pipes a little longer than measured distance E Cut the cable 1 5m 59 1 longer than the pipe length C x CT oe 90 Slanted Uneven Rough r 2 Burrs removal B Completely remove all burrs from the cut cross section of pipe tube E Put the end of the copper tube pipe in a down ward direction as you remove burrs in order to avoid dropping burrs into the tub
45. p Installations If the outdoor unit is installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding rooftop mounting If the outdoor unit is installed on root structures or walls this may result in excessive noise and vibration and maybe also classed as non serviceable installation 2 Piping length and elevation Capacity Pipe Size Standard Max Max Additional Btu h Length Elevation length Refrigerant Buh GAS LIQUID mit mit gimiozf 30k 5 8 3 8 7 5 25 15 50 30 100 30 1 102 Outdoor unit Outdoor unit Oil trap e Nak Indoor unit unit In case more than 5m 16 4ft Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed In case more than 5 7meters 16 4 23 0ft 3 How to fix installation plate 4 Drill a hole in the wall The wall you select should be strong and solid enough to prevent IB Drill the piping hole with a 70 0 76 hole M core drill Drill the piping hole at either the right or 1 Mount the installation plate on the wall with four the left with the hole slightly slanted to the out type A screws If mounting the unit on a concrete door side wall use anchor bolts WALL Indoor Outdoor M
46. ration position the operating conditions are automatically set as fol lows During Forced Operation the initial mode continues RESTART POWER FORCED OPERATION Cooling Heat pump Model Model Room Temp gt 24 C 76 F 21 C 70 F lt Room Temp lt 24 C 76 Room Temp lt 21 C 70 F Operating mode Cooling Cooling Healthy Dehumidification Heating Indoor FAN Speed High High Healthy Dehumidification Rule High Setting Temperature 22 C 72 F 22 C 72 F 23 C 74 F 24 C 76 F 9 AUTO RESTART In case the power comes on again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the pre vious operating conditions If you want to use this operation The autorestart button is on the main unit of the appliance in the standard condition press the auto restart button to make this function active If you do not want to use this operation free the auto restart button once again If you do not want to use this operation move the Slide Switch to the Remote Control position 19 Display Function Signal Receptor Receives the signals from the remote control Signal receiving sound two short beeps or one long beep Operation Indication Lamps OUT DOOR On Off Timer or Sleep Mode Defrost Mode Outdoor unit operation Auto Restart Mode RESTART Auto Restart Button POWER Force
47. source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification Particularly note the relation between cable length and thickness Refer to page 30 7 Always install an earth leakage circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the nor mal function of the overload 9 The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active phase conductors 31 1 Checking the drainage 1 Remove the right side panel Right side panel Z 7 v 2 Remove the lower panel by the arrow 3 Remove the left side panel Remove the two screws 4 To check the drainage E Pour a glass of water on the drain pan E Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit 5 Drain piping Bi The drain hose should point downward for easy drain flow n slope E Do not make drain piping Accumulated Do not raise drain water Air Y
48. the installation plate Engage the three hooks of the rear top and rear lower of the indoor unit with the E When extending the drain hose at the indoor unit upper edge and lower edge of the installation install the drain pipe plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Installation plate Setting line Indoor unit drain hose Adhesive Vinyl tape narrow X hooks Indoor unit Ini Installation A Tq lower hooks 25 6 Wrap the insulation material around the connecting portion E Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Plastic bands Insulation material oT Eli o Wrap the area which accommodates the rear pip ing housing section with vinyl tape Connection Indoor pipe unit pipe Vinyl tape wide Wrap with vinyl tape Connecting cable Vinyl tape narrow B Bundle the piping and drain hose together by wrapping them with vinyl tape over the range with in which they fit into the rear piping housing sec tion Wrap with vinyl tape lt Vinyl tape wide Drain hose For right rear piping 1 Route the indoor tubing and the drain hose to the required piping hole position 2 Insert
49. the piping drain hose and the connecting cable into the piping hole Connecting cable Drain pipe 3 Insert the connecting cable into the indoor unit E Don t connect the cable to the indoor unit E Make a small loop with the cable for easy connection later 4 Tape the drain hose and the connecting cable Connecting cable 26 5 Indoor unit installation B Hook the indoor unit onto the upper portion of the installation plate Engage the three hooks of the rear top and rear lower of the indoor unit with the upper edge and lower edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Installation plate Setting line 1 es upper hooks Indoor unit j Three lower hooks 6 Connecting the pipings to the indoor unit and the drain hose to drain pipe B Align the center of the pipings and sufficiently tighten the flare nut by hand ps 0D Indoor un Flare 2 A B Tighten the flare nut with a wrench Spanner fixed Flare nut Torque wrench Indoor unit tubing Capacity Pipe Size Torque Btu h Suction Evaporator 30K 5 8 6 6kg m 3 8 4 2kg m E When extending the drain hose at the indoor unit install the drain pipe Indoor unit drain hose Adhesive Vinyl tape narrow 7 Wrap the insulation material around the connecting portion B Overlap the connectio
50. the signals to the room air conditioner z Signal transmitter DL E ET GOTIME CB TIME 8 88 8 an ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation TIME SETTING BUTTONS Used to adjust the time TIMER SET CANCEL BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature F SELECTING BUTTON Choose temperature unit C or F alternatively HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON NOT ON ALL MODELS Used to set the desired horizontal airflow direction RESET BUTTON Used prior to resetting time or after replacing batteries 37 2 and Function Remote Control Heat Pump Models Remote Controller Signal transmitter Transmits the signals to the room air conditioner Signal transmitter F Ve im r GMTIME CEB TIME wN 8 88 pmid Bw ON OFF TIMER BUTTONS Used to set the time of starting and stopping operation e TIME SETTING BUTTONS Used to adjust the time TIMER SET CANCEL BUTTONS Used to set the timer when the desired time is
51. ut AC 180V over About AC 50V over TRIAC is not damaged TRIAC Check 52 5 When Vertical Louver does not operate Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor f the regular torque is detected when rotating the Vertical Louver with hands Normal Check the connecting condition of CN U D Connector Check the soldering condition on PWB of STEP U D Connector Lt Check the operating circuit of the Vertical Louver Confirm that there is DC 12V between pinD RED of CN U D and GND Confirm that there is a soldering short at following terminals Between 68 69 60 and 6 of MICOM Between and D of ICO1M Between 4 and of ICO1M l1 If there are no problems after above checks Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver 6 When Heating does not operate Turn ON Main Power Operate Heating Mode by setting the desired temperature of the remote controller is higher than one of the indoor temperature by 2 C 4 F at least In heating Mode the indoor fan operates in case the pipe temperature is higher than 28 C 50 F d Lt Check the connector of intake and pipe sensor thermistors Check the related circuit of RO2H 12 1K RO4H 6 2K RO3H 1 0K
52. ve Lo side on the charge set and valves are set to the back seat discharge the refrigerant until the gauge indi cates 0 kg cm G 2 Connect the charge set to the 3 way valve s If there is no air in the refrigerant cycle the port pressure when the air conditioner is not running Leave the valve on the charge set closed is higher than 1 kg cm G discharge the refrig Connect the charge hose to the service port erant until the gauge indicates 0 5 to 1 kg em G if this is the case it will not be neces sary to apply a evacuatin Discharge the refrigerant gradually if it is dis charged too suddenly the refrigeration oil will also be discharged 45 2 Evacuation All amount of refrigerant leaked Outdoor unit Procedure 1 Connect the vacuum pump to the center hose of charge set center hose 2 Evacuation for approximately one hour Confirm that the gauge needle has moved toward 76 cmHg vacuum of 4 mmHg or less 46 3 Close the valve Lo side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approxima tely 5 minutes after turning off the vacuum pump 4 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed 3 Gas Charging After Evacuation Outdoor unit Check valve Charging cylinder
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