Service Manual
Contents
1. S M NO DMBG078001 Service Manual Split System Air Conditioner Model DMB G078LH V DMB G098LH V DMB G128LH V DMB G2713LH VO V Caution In this Manual some parts can be changed for improving their performance without notice in the parts list So if you need the latest parts information please refer to PPL Parts Price List in Service Information Center DAZWOO ELECTRONICS APR 2006 Contents 1 2 Features ee Heer 02 Specification mE 03 Dimensions sse mmm eee 04 Refrigeration cycle diagram sendin Lange oid RR Aa Mg 06 Operation limitg oom eee 07 Wiring diagram M M 08 Troubleshooting 10 Electronic function oomen 11 1 Features 1 1 Powerful at cooling heating 1 3 times and 1 6 times relatively higher than normal same type of models 1 2 Low voltage start up function even at 160 V it can normally start 1 3 Anti icing function at cooling mode 1 4 Anti cold air function at heating mode 1 5 Auto defrosting and heating recovering function at heating mode 1 6 Outdoor whole electric current protection 1 7 Temperature protection of the outdoor compressor top 1 8 Restart protection for the compressor 1 9 24 hours on off mode time setting 1 10 Error self diagnosis function 1 11 Protection against over load or too low current inputted through alternating current 22. N L sa QI a gt Se es mi i M dl 4 Refrigeration Cycle Diagram Indoor unit outdoor unit Heat exchanger 4 way valve z Sensor of room temp Heat exchanger Sensor Sensor of temp Sensor of heat exchanger temp D Sensor of heat exchanger temp Compressor Valve Capillary 5 Operation Limits 5 1 Cooling operation Outdoor unit air temp 60 40 30 20 10 10 17 25 30 35 40 Indoor air temp Note the chart is the result from the continuous operation under constant air temperature conditions however excludes the initial pull down stage 5 2 Heating operation Indoor air temp 30 20 10 5 15 15 5 5 15 25 30 Outdoor unit air temp Note the chart is the result from the continuous operation under constant air temperature conditions however excludes the initial pull down stage 6 Wiring Diagram Indoor unit DMB G078LH V DMB G098LH V OVERHEAT ANG PROTECTOR YELLOW o No YELLOW HEAT EXCHANGER SENSOR INDOOR BROWN AMBTENT SENSOR SWITCH BOARD CN YELLOW DISPLAY BOARD QUTDOOR LOUVER MOTOR Indoor unit DMB G128LH V HEAT EXCHANGER SENSOR AMBIENT SENSOR SWITCH BOARD DISPLAY BOARD LOUVER MOTOR RED TRANSFORME
3. continues for more than 80 seconds 3 When defrosting action continues for 10 minutes 8 5 8 3 Defrosting Action Max 10 mins Compressor 4 way valve Outdoor fan Indoor fan The indoor fan operates in anti cold air mode when it recovers 16 8 5 9 8 6 8 6 1 8 6 2 8 6 3 8 6 4 8 7 8 7 1 8 7 2 8 7 3 8 7 4 8 8 8 8 1 8 8 2 8 8 3 8 8 4 8 8 5 8 8 6 8 8 7 Set Function Test When it is detected that the outdoor temperature is between 5 9 c and room temperature is between 18 22 c provided that the heating operation remains consecutively more than 30 minutes the compressor s highest operational frequency is FMAX F8 96HZ If any of the above conditions is not met it will quit from set frequency operation Auto Mode Function Using remote control to choose auto mode under which the set temperature can be adjusted in a range of 17 30 c When entering auto mode the A C will choose cooling heating or fan only according to the difference between room temperature TA and set temperature TS TS Operation status TS gt 1 Cooling 1 c TA TS 1 F an only TS lt 1 Heating At auto mode the indoor fan will choose auto fan in corresponding mode At auto mode the vane action of indoor fan is the same as that of chosen mode Once a mode is chose it will take 5 minutes after shutting off the compressor to re choose another mode acc
4. R YELLOW YELLOW BLACK TNDOOR POWER IN OUTDOOR Outdoor unit DMB F2713LH VO HEAT AMBIENT EXCHANGER SENSOR OUTDOOR SENSOR OUTDOOR OVERLOAD PROTECTOR rep BLACK 4 CT 09 0 c2 10 m MPRESSOR v MAIN D ES BOARD G U y BLUE BLACK Y G D YELLOW Y G NO BLUE i BLUE 9 5 FILTER RED 1 POWER 019 WG RED I BOARD ons P4 RL ORANGE D RED COMMUTATOR COMMUTATOR REACTOR RED o H PA m BAG RAN E ORANGE i PE _ _ Ps WAY ca om BLUE RED 4 WAY RESISTANCE BLUE WHITE RED CONNECTOR 7 Troubleshooting 7 1 Indoor Unit Error Display Function LED2 defrosting LED1 LED4 auto LED4 operation LED2 LED1 LED3 LED4 LED STATUS defrost Timer Auto operation x x Mold protection X X w Compressor top protection against temperature x O x w Open or short circuit of outdoor te
5. Specification Model Item DMB G078LH V DMB G098LH V DMB G128LH V Power source 220 240V 50Hz 220 240V 50Hz 220 240V 50Hz Capacity BTU H 7000 2700 9000 9000 2730 10600 12000 3070 12300 Input 820 250 1200 1080 270 1470 1400 310 1710 Cooling Running current 4 8 1 35 6 2 6 0 1 45 7 6 7 5 1 6 8 8 BTU W H 8 3 8 3 8 6 Capacity BTU H 9000 2700 11000 12000 2730 14000 14000 3070 17000 Heating Input 1010 250 1300 1400 270 1800 1790 300 2380 Running current 5 6 1 35 6 7 7 2 1 49 9 3 10 5 1 6 12 3 Max input consumption w 2100 2300 2600 Model BG130X1C 20FZ BG130X1C 20FZ BG130X1C 20FZ Type Rotary Inverter Rotary Inverter Rotary Inverter Compressor Brand MIDEA TOSHIBA MIDEA TOSHIBA MIDEA TOSHIBA Refrigerant oil ml 370 370 370 Refrigerant oil type R407C R407C R407C Refrigerant R407C g 800 800 1150 Design pressure MPa 2 6 2 6 2 6 Indoor fan Input RPG13H 36 RPG13H 36 RPG13C 50 motor Capacitor uF 1 2uF 450VAC 1 2uF 450VAC 1 5uF 450VAC Speed level 3 3 3 Hi speed rpm 1100 1100 1060 Mid speed rpm 1000 1000 900 Low speed rpm 800 800 800 High fan m3 h 500 520 560 Air flow Middle fan 3 430 430 460 indoor Low fan m3 h 330 330 380 Noise level dB A 35 32 26 35 32 26 36 32 26 36 32 26 indoor Outdoor fan Input YDK23 6G 63 YDK23 6G 63 YDK23 6G 63 m
6. When indoor fan is in operation it can be remote controlled to High Mid Low Auto modes 8 3 4 2 The fan speed at Auto mode in cooling status is subject to the following room temperature set temperature 8 3 5 Indoor fan vanes at cooling mode will swing in accordance with the following When just plugged in for cooling the vanes will open to the standard angle 50 The vane angle can be set by remote control at any angle between 50 and 105 every setting can adjust 6 or set swinging swinging angle will be 25 8 4 Dehumidifying Mode Requirements 8 4 1 At dehumidifying mode the 4 way valve is shut off 8 4 Atdehumidifying mode the indoor fan is fixed in Breeze status and not adjustable 8 4 3 At dehumidifying mode the compressor operates in accordance with the following principles Room temperature set temperature 8 4 4 Too low room temperature protection During dehumidifying when room temperature drops down 10 c the compressor will shut off and when the room temperature rises up than 12 c the compressor resumes operation 8 4 5 Atdehumidifying mode the anti icing function of indoor heat exchanger applies 13 8 4 6 At dehumidifying mode the power voltage and outdoor temperature limitation to the highest frequency when compressor starts and operates is the same as that at cooling mode 8 5 Heating Mode Function Requirement 8 5 1 At heating mode the 4 way valve is on during defrosting operation it is o
7. d outdoor fan are off at Fan only mode Temperature setting function is cancelled the set temperature can not be displayed nor adjusted The rotational speed of indoor fan can be optionally chosen by remote control as High Mid Low Auto The indoor fan vanes at Fan only mode perform the same as those at cooling mode 11 8 2 5 8 3 8 3 1 8 3 2 8 3 3 Performance at Auto mode at Fan only status is the same as that at Auto mode at cooling status provided that the set temperature is 24 c Cooling Mode Function Requirement At cooling mode the 4 way valve is off Anti icing Control for Indoor Evaporator When the temperature of indoor heat exchanger drops to 4 c the frequency will reduce one step down including FO and last for 1 minute every time until the temperature is kept between 4 T c If the temperature rises to 7 c the limitation then will be removed When the temperature of indoor heat exchanger drops to lt 0 c shut off the compressor and it will resume when the temperature rises up to gt 5 c Outdoor Unit Current Control When Cooling Shut off the compressor 10 2A 80A frequency down frequency unchanged resume to normal Note The frequency down at the diagram is in accordance with the present frequency dropping down to determine every 2 seconds whether the frequency is keeping going down or is recovering 12 8 3 4 Indoor fan operates in accordance with the following principles 8 3 4 1
8. djust 6 or set swinging swinging angle will be 25 8 5 8 Defrosting operation 8 5 8 1 Defrosting precondition Defrosting starts when meeting one of the three conditions The temperature of outdoor heat exchanger remains consecutively lower than 3 cfor more than 40 minutes and the temperature remains consecutively Ti1 for more than 3 minutes Model Tit DSB G098LH V 9 c DSB G128LH V 9 c 15 2 The temperature of outdoor heat exchanger remains consecutively lower than 3 c for more than 80 minutes and the temperature remains consecutively 2 for more than 3 minutes Model Ti2 DSB G098LH V 7 c DSB G128LH V 7 3 temperature of outdoor heat exchanger remains consecutively lower than 3 c for more than 120 minutes and the temperature remains consecutively Ti3 for more than 3 minutes Model Ti3 DSB G098LH V 5 c DSB G128LH V 5 Note The time period starts to count when outdoor heat exchanger temperature is lower than 3 c the defrosting operation starts when the exchanger temperature remains lower than the starting temperatures which are Ti3 Ti2 Ti1 8 5 8 2 Conditions of defrost ending Defrosting ends when meeting any of the following three conditions and it turns to normal heating operation 1 When the temperature of outdoor heat exchanger rises up to 12 c 2 When the temperature of outdoor heat exchanger rises up to 8 c and this
9. er error is less than 1 min h 17 OG DAZWNOO ELECTRONICS 18 DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE APR 2006
10. ff 8 5 2 Outdoor fan usually turns on or off in accordance with the action of compressor except for defrosting and ending of the defrost 8 5 3 Indoor fan action Anti cold air control Temperature of heat exchanger Set rotational speed 8 5 4 Indoor fan can be set by remote control to any mode like High Mid Low Auto however anti cold air function comes first Auto fan Room temperature set temperature 0 5 1 0 1 5 2 0 14 8 5 5 Outdoor Unit current control when heating Note The frequency in the table 11 5A 10 0 goes down in accordance with the present frequency determine every 2 seconds whether it keeps going 10 5A 8 8A down or it is recovering 9 2A 7 4A 8 5 6 Indoor evaporator protection against high temperature When the temperature of indoor heat exchanger is higher than 53 c thefrequency will reduce one step and last for 20 seconds every time until the temperature drops down lower than 53 c If the temperature drops down 48 c the limitation then will be removed the frequency will not going down further when reaching 35Hz When the temperature of indoor heat exchanger is higher than 63 c shut off the compressor 8 5 7 Indoor fan vanes at heating mode will swing in accordance with the following When just plugged in for heating the vanes will open to the standard angle 220 The vane angle be set by remote control at any angle between 0 and 220 every setting can a
11. mperature sensor X O Over load or too low voltage protection Room temperature or evaporator temperature sensor open w or short circuit of w w Fan speed beyond control w X O w Zero crossing examination error X Temperature fuse protection X X EEPROM data error x w Types doesn t match w Indoor outdoor units communication protection O on X off w flash 7 2 Outdoor Unit Error Self diagnosis Display Outdoor Unit Error Outdoor unit works Outdoor unit Stand by if L4 flashes at 0 5Hz if LA flashes at 1Hz L4 on 10 8 Electronic Function 8 1 8 1 1 8 1 2 8 1 3 8 1 4 General Protection Temperature Protection of Compressor Top 3 minutes Delayed Starting Protection of the Compressor Voltage Protection The frequency Up Down speed at which the compressor starts operates and shuts off will be subject to the following principles outdoor chip 8 1 5 8 2 8 2 1 8 2 2 8 2 3 8 2 4 Frequency Converter Mold Protection outdoor chip The Frequency Converter Mold itself has a protection function against current voltage and temperature if there are 4 times of above mentioned protection functioning within 1 hour when the compressor s consecutive operation lasts more than 10 minutes the fore mentioned 4 counts will be cleared the whole machine will shut off and the mold protection gives an alarm Fan only Mode Function Requirement The compressor 4 way valve an
12. ording to the difference between room temperature and set temperature or you can re choose mode when set temperature is changed Forced Operation Function Forced operation is controlled by the switch on switch board and divided into forced cooling and forced auto Remote control doesn t work at forced operation control At forced operation status all protection functions in general protection fore mentioned apply At forced cooling mode the compressor operates at a fixed frequency of F2 42HZ indoor fan is Breeze anti icing control and general current control of cooling outdoor unit work forced operation will transfer to auto mode whose set temperature is 24 c automatically after 30 minutes At forced auto mode the remote control controls in a set temperature of 24 c Timer Function Requirement The maximum length of timer is 24 hours and the minimum resolving power is 15 minutes Timer on function first turn off the A C the A C will be automatically on at the set time Timer off function first turn on the A C the A C will be automatically off at the set time Timer on off function on time is earlier than off time first turn off the A C it will be automatically on at set time and later be off at the set time Timer off on function off time is earlier than on time first turn on the A C it will be automatically off at set time and later be on at the set time Timer function execution is applicable upon one operation only Tim
13. otor Capacitor uF 2 5uF 450VAC 2 5uF 450VAC 2 5uF 450VAC Noise High dB A 51 51 53 outdoor dimension W H D 750 250 188 750 250 188 815 280 195 Indoor unit Packing W H D 830 336 280 830 336 280 915 360 275 Net weight kg 8 5 8 5 11 dimension W H D 780 520 240 780 520 240 780 520 240 Outdoor unit Packing W H D 910 575 335 910 575 335 910 575 335 Net weight kg 37 37 40 1 The noise date is base on anechoic chamber during actual operation these values are normally somewhat different as a result of ambient condition 3 Dimensions 3 1 Indoor Unit DMB G078LH V DMB G098LH V 188 750 250 Indoor unit outline or more to ceiling Installation plate 12cm or more to wall 15cm or more to wall Left refrigerant pipe hole 65 Right refrigerant pipe hole 65 3 2 Indoor Unit DMB G128LH V 195 3 4 Outdoor Unit DMB F2713LH VO 108 _____ _ _ _ ________1 Pr IA YY ee es ee Ee i II SS EEE BH ee er ee ee ee eee oe ee eee eee ee 2 7 Ln 27 ___ _ ____ ___ L y ae Ee ee ee ee UT I aI UU C L h mw ir sma r wa a ss UA eee lI Ul i ee KC a a Tl L L T rV TK L T UU ee y i ee
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