Ventilation System
Contents
1. D Suspension Fixture oa r RA o Return Air EA o Exhaust Air m L_ gt SA pm Supply Air OA Outdoor Air rl Maintenance Cover Control box A J Sse FF mi P o i Ww n Te fF O O _ i A Le ll Scip h Va N A A Ly er Total Heat Exchange Element Unit mm Model Figure Pitch of Suspension Fixture Duct Connection Flange Nominal Diameter Duct Pitch Weight A B C D E F G H J K L M EA SA N 0 P Q kg LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 1313 1140 737 987 1176 150 242 253 98 340 350 130 350 253 410 482 146 513 146 LZ H2002BA0 Service Manual 51 Accessaries Option Il Accessaries Option AUTO SWING OPERATION SETEME FAN SPEED SUB FUNCTION Ay X ao 3 HI HAUTO Heater Preheat OND BB Defrost Humidity A s i LAL LO JET Filter Out door nom Y is Time CZE 1234 pas Operation unit Program set Sur Non Tue ed in Fi Sa oF gt r y 7 Program Week Holiday w a gt Set Cir When the cover is open 710 11 12 13 1 Display Screen 2 Heater Button 3 Button for time setting canceling and weekend setting date selecting weekend selecting 4 Play Stop Button2. Pitch of Suspension Fixture D E F Nominal Diameter Duct Connection Flange Duct Pitch G H J K L Unit mm LZ H0106BA0 LZ H0156BA0 504 64 97 5 160 90 402 103 K It necessary to secure sufficient space for maintenance more than the dimensions described in the product service Service Manual 47 Feature Dimensions Diagram e LZ H0O256BA0 A J Air Filter Total Heat Exchanger T L Maintenance Cover Control box Suspension Fixture er for Supplying Air RA Return Air EA Exhaust Air Blower for Exhausting Air OA SA Outdoor Ai gt E gt Supply Air Unit mm Pitch of Suspension Fixture Nominal Duct Connection Flange Duct Pitch D E F Diameter G H J K Model LZ H0256BA0 568 55 150 140 160 70 430 amp It necessary to secure sufficient space for maintenance more than the dimensions described in the product service 48 Ventilation System Feature Dimensions Diagram e LZ HO506BA0 LZ H0502BA0 Blower for Exhausting Air Suspension Fixture EA RA Exhaust Air qm Return Air OA SA Outdoor Air gt gt Supply Air Bl wer for Supplying Air Maintenance Cover Control box Total Heat Exchanger aN R
3. GND DC12V fo P CN REMO Main PCB T swi E lata 2009 58538535 LI pe Thermistor ue Information Prepare a circuit breaker on separate purchase Factory wiring Field wiring on the spot wiring External controller contact _ Wired remote controller connection Note BR Brown BL Blue BK Black WT white RD Red GN Green YL Yellow OR Orange 1 OPTION Wiring Diagram Models LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 e This product has different wiring method by system configuration Perform the wiring work electric working on several necessary parts areas Capacitor Capacitor BR a ne Bart HYL BR YL BL Single Phase 2 N p 220V 50 60Hz SA EA GN YL eh Powe
4. Operating mode setting for remote controller and exterior air conditioner Exterior air conditioner WEAK MILD Weak operation Extremely STRONG QUICK Strong Extremely Strong Operation Power Saving Power Saving operation 38 Ventilation System Descriptions for Control Circuit Models LZ HO506BA0 LZ H0502BA0 LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 Power Supply Initialization of Micom Controller gt Input Data Temperature Data Outdoor Temperature Room Temperature Abnornnalcondition Detecting Abnormalities Normal condition Reliability Operation by Outdoor Temperature ON Total heat SA EA OFF Operation OFF Total heat SA OFF EA WEAK Normal Operation Operating mode setting for remote controller and exterior air conditioner Total Heat ll Normal Auto Total Heat Operation Normal Operation Automatic operation Air flow setting for supply exhaust by Remote Controller and Exterior air conditioner WEAK MILD Extremely QUICK Power Saving STRONG Strong Extremely Strong Operation Power Saving operation Service Manual 39 Troubleshooting Il Troubleshooting Instructions for diagnostics When separating main PCB hold the tip of main PCB to prevent any force into over all parts When separatin
5. AN N Ws NSS N NY D W Y Ky D S W WROD Wyss Wy SS SS ESSN SSK SX gt SSS ws WN WNN CQ 4 ARANAN f WOK G NNS Y XD i Sy Ys GZ 26 Ventilation System Disassemble Diagram Deal Drawing and SVC Parts List SVC Parts List mes Item Part No pues A a ata E SVC Remarks LZ H0506BA0 LZ H0502BA0 359012 FAN ASSEMBLY BLOWER 5901A20029A 2 R 546810 1 AC MOTOR ASSEMBLY 4681A20028M 1 R Indoor 546810 2 AC MOTOR ASSEMBLY 4681A20028N 1 R Oudoor 263230 1 THERMISTOR NTC 6323A30004G 1 R Indoor 263230 2 THERMISTOR NTC 6323A30004H 1 R Outdoor 268714 PCB ASSEMBLY MAIN 6871A10118A 1 R WOCZZ CAPACITOR FILM BOX 3HO00660Z 2 R 340090 EXCHANGER ASSEMBLY 4009A20001A 2 R 152312 FILTER ASSEMBLY AIR CLEANER 5231A30003A 2 R 146812 MOTOR ASSEMBLY AC SYNCHRONOUS 4681A20120A 1 R Service Manual 27 Disassemble Diagram Deal Drawing and SVC Parts List Models LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 28 Ventilation System Disassemble Diagram Deal Drawing and SVC Parts List SVC Parts List air ois Item Part No nan orn eee SVC Remarks L2 HO806BA0 LZ HO802BA0 L2 H1006BA0 LZ H1002BA0 359012 FAN ASSEMBLY BLOWER 5901A30005A 2 2 2 2 R 346810 1 MOTOR ASSEMBLY AC INDOOR 4681A20139A 1 1 R Indoor 34
6. CN OUT l l l l l i BK BLACK Room Room co OR ORANGE Sensor Sensor YL YELLOW CO2 Sensor GN YL GREEN YELLOW WARNING INFORMATION There is risk of electric shock due to failure or electric leakage You need to buy a dedicated circuit separately Always ground the product Field Wiring You can install the product by refering to owner s manual Service Manual 33 Wiring Diagram Models LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 e This product has different wiring method by system configuration Perform the wiring work electric working on several necessary parts areas Capacitor Capacitor BRE HYL ore SA EA Fan Motor Fan Motor BR Mlh YL ead a A GNIVL e Lu lonn Damper wt ie Normal O Dacre of Motor BR CN DAMPER RY DAMPER _ PE l r 1 7 nee epee he AN i t fof 4 CN SPARE eat s5 myn aM CN PLASMA i i i Central Controller 1 i CN IN i ee e p O Ww Indoor Thermistor A WARNING Be sure to install electric leakage circuit breaker and switch Be sure to undertake grounding work 34 Ventilation System 9 gt loneowen CN AIR ale FUSE 250V 8A CN ine Single Phase 220V 50 60Hz Power Supply Indoor Unit of Ai conditioner is Dies 220VAC Link to Ventilation r SS z Eae al g BR YL SIGNAL les
7. 5 Delaying time Button 6 Quick ventilation Button 7 Ventilating Mode Button 8 Air flow selection Button 9 Humidification Button 10 Power saving filter cleaning Button 11 Plasma Button 12 Time Reset Button 3 Some functions may not work depending on models according to models 52 Ventilation System Accessaries Option Heater for ventilation system is a separate purchase Product Standard Model Capacity W Connecting Caliber PEH Z4P0 400 100 PEH Z8P0 800 Unit mm Model Pitch of Suspension Fixture Nominal Duct Connection Flange ode C D Diameter E F 134 117 100 97 5 202 134 117 100 147 202 PEH Z4P0 PEH Z8P0 Service Manual 53 December 2005 P No 3828A20320D Printed in Korea
8. Electric current A 5 6 5 4 5 2 5 6 5 4 5 2 Electricity consumption W 950 925 795 950 925 795 Airflow m h 1 500 1 500 1 200 1 500 1 500 1 200 External static press Pa 200 110 60 200 110 60 Temperature efficiency 79 79 82 a s a Heating 70 70 75 Enthalpy efficiency Cooling 65 65 70 Noise dB A 39 37 33 39 37 33 Air Filter Non woven fabric filter Weight kg 146 Dimensions mm 1 313 W x 1 140 D x 737 H Service Manual 11 Product Standards Item format Unit LZ H1502BA0 Power O V Hz 1 220 60 Ventilation Mode Total heat ventilation General ventilation Wind velocity Super High High Low Super High High Low Electric current A 6 2 6 0 5 0 6 2 6 0 5 0 Electricity consumption W 1 190 1 151 960 1 190 1 151 960 Airflow m h 1 500 1 500 1 280 1 500 1 500 1 280 External static press Pa 200 110 70 200 110 70 Temperature efficiency 79 79 82 s R Heating 70 70 75 Enthalpy efficiency Cooling 65 65 70 Noise dB A 39 37 33 39 37 33 Air Filter Non woven fabric filter Weight kg 146 Dimensions mm 1 313 W x 1 140 D x 737 H Item format Unit LZ H2006BA0 Power V Hz 1 220 240 50 Ventilation Mode 3 Total heat ventilation General ventilation Wind velocity Super High High Low Super High High Low Electric current A 6 0 5 8 5 2 5 6 5 4 4 8 Electricity consumpt
9. and SVC Parts List SVC Parts List i Quantity Volume Amount pee Item Part No SVC Remarks 9 LZ H0106BA0 LZ H0156BA0 359012 FAN ASSEMBLY BLOWER 5834AC1012C 2 2 R 4681A20068J 2 R 546810 MOTOR ASSEMBLY AC OUTDOOR 4681A20068H 2 R 268714 PCB ASSEMBLY MAIN 6871A10118E 1 1 R WOCZZ CAPACITOR FILM BOX 3HO0660P 2 2 R 263230 1 THERMISTOR NTC 6323A30004L 1 1 R Indoor 263230 2 THERMISTOR NTC 6323A30004M 1 1 R Outdoor 152312 FILTER ASSEMBLY AIR CLEANER 5231A30003E 2 2 R 340090 EXCHANGER ASSEMBLY 4009A20002D 1 1 R Service Manual 23 Disassemble Diagram Deal Drawing and SVC Parts List Models LZ H0256BA0 24 Ventilation System Disassemble Diagram Deal Drawing and SVC Parts List SVC Parts List E Item Part No Sai a SVC Remarks i LZ H0256BA0 359012 FAN ASSEMBLY BLOWER 5834AC1012C 2 R 546810 MOTOR ASSEMBLY AC OUTDOOR 4681A20068M 2 R 268714 PCB ASSEMBLY MAIN 6871A10118E 1 R WOCZZ CAPACITOR FILM BOX 3H00660P 2 R 263230 1 THERMISTOR NTC 6323A30004L 1 R Indoor 263230 2 THERMISTOR NTC 6323A30004M 1 R Outdoor 152312 FILTER ASSEMBLY AIR CLEANER 5231A30003C 2 R 340090 EXCHANGER ASSEMBLY 4009A20002B 1 R Service Manual 25 Disassemble Diagram Deal Drawing and SVC Parts List Models LZ HO506BA0 LZ H0502BA0 lt SSS lt lt lt K RSS Sn SSSR Oa CUS SS iS N
10. on the circuit plate wired remote controller LCD display screen Loading status Error code Details display operation LED main body display 0 5 sec Indoor thermistor __ 5 Open Short 3 686 l l CH01 Turn operation off Outdoor thermistor i Open Short lll Turn operation off Remote controller communication Turn operation off error Error codes and LED display table for using ZCON BS2 table 2 Checking No Details Possible Causes Necessary actions CH1 Errors related to e Connector failure related to e Check the connection of circuit connector indoor thermistor thermistor and lead line connecting connector CH2 Errors related to e Connector failure related to e Check the connection of circuit connector outdoor thermistor thermistor and lead line connecting connector CH3 Remote controller e Several transmission lines wired With electric wires place each transmission communication errors as multicables line at intervals e Transmission lines in too close e Wire the transmission line and power line at vicinity to power line more than 5cm intervals e Connecting failure of transmission Check the connection of transmission line line e Longer wiring length of e Check the wiring length of transmission line transmission line than prescribed more than 500m 44 Ventilation System Troubleshooting Breakdown mode 3 Remote controller does not work It works ab
11. website http www lgservice com LG _ Ventilation System SERVICE MANUAL MODELS LZ H0106BA0 LZ H1006BA0 LZ HO156BA0 1 7 H1002BA0 nica LZ H1506BA0 Lz Ho502BA0 44 H1502BA0 LZ H0806BA0 42 H2006BA0 LZ H0O802BA0 LZ H2002BA0 CAUTION e BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL e ONLY FOR AUTHORIZED SERVICE PERSONNEL Ventilation System Service Manual TABLE OF CONTENTS Safety PICCAUUONS 505 pes ecte ees ere eh accel Cece eee es eae cn sass 3 Standards for Model icc 3 Foo ickadics Saleisha eesrvintcees vente cee peated eet emateene eel 6 Product Standards sci c g i eta tate ON pacee tie leh te Ieee tac 7 Descriptions for operation and functions ccccceccssteceesesteeeesssteeeeeeees 14 How to disassemble oars coetetree atin eee ea ee 17 Disassemble Diagram Deal Drawing and SVC Parts List 0 ee 22 Wiring Diagram coed Madeleine aia ah ae aa a eee eet s thes 32 Control Part Detailed Drawing cccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeseneeeeeaees 36 Descriptions for Control Circuit cccccccccessceecseseeeeeeeseeeeeeeseneeeessseneeeseeees 38 Troubleshoot e eet Nee uct toch ule cee cecal 40 Feature Dimensions Diagram cccccccecceeeecee eect ee eeeeeeeeeeeeeeeaeeeeeeeeeeaeees 47 Accessaries Option sii scisarcccecanctsalesaaceaic aed nacre Gauci cea ani A GR nate toes es 52 2 Ventilation System Safety Precautions Il Safety
12. 11 Is the thermistor precisely connected to the terminal plate 12 Is the option switch SW1 SW2 correctly set Service Manual 43 Troubleshooting System checklist table table1 2 for using wired remote controller LCD TYPE No Details Possible Causes Necessary actions 1 No message displayed No power supplied to ventilation e Check the power in ventilation system on remote controller system or incorrect power connected to the system e Longer total wiring length of e Check the wiring length of transmission line transmission line than prescribed e No connection of remote controller to Connect the transmission line to CN REMO CN REMO 2 No control with remote e Longer total wiring length of e Check the length of transmission line controller transmission line than prescribed displaycommunicate more than 500m failure e Multiple transmission line wired as e Use exclusive wires and wire the transmission multicable lines at more than 5cm intervals 3 Odd message displayed Running out of liquid crystal e Replace the remote controller on the screen Breakdown modez2 failure code is displayed on remote controller LED light is on or flickering on the circuit panel of ventilation system The failure details are indicated by checking number indicated on air conditioner interlocking controller or on wired remote controller LCD TYPE and the number of on and off flickering in LED red color
13. F e No input of external equipment e Check the external equipment signals 3 Ventilation system e Power failure e If main power is disconnected by remote operated by main controlling during ventilation system power operation ventilation system operates normal condition with no errors 4 Frequent stop of air e When the option switch No 8 is set e Normal condition with no errors changing fan ON and air temperature is below 15 C or above 45 C e When air temperature ranges from 10C to 15C it stops to prevent the electric heat exchanger of ventilation system from freezing intermittent operation e When ducted with Multi V air e Normal condition with no errors conditioner made by this company by interlocking the air conditioner stops in case of defrosting 5 Frequent stop of air e Displayed power saving operation Normal condition with no errors changing and ventilating fans e Displayed intermittent operation 46 Ventilation System Feature Dimensions Diagram Il Feature Dimensions Diagram LZ H0106BA0 LZ H0156BA0 G Suspension Fixture EA Exhaust Air Blower for Exhausting Air oa D gt Outdoor Air Blower for Supplying Air c Jil sa gt Supply Air ee Total Heat Exchanger Air Filter RA Return Air 1 D F
14. FILTER ASSEMBLY AIR CLEANER 5231A30003B 4 4 4 4 R 340090 EXCHANGER ASSEMBLY 4009A20002A 4 4 4 4 R Service Manual 31 Wiring Diagram Il Wiring Diagram Models LZ H0106BA0 LZ H0156BA0 LZ HO256BA0 e This product has different wiring method by system configuration Perform the wiring work electric working on several necessary parts areas 220 240V 50Hz 1PHASE CAPACITOR Lo SA FAN MOTOR_ Bu o _ po FUSE 250V 5A be eee Lo Linkto a _ 8kl6 eS fey FAN MOTOR Teilo we EA l Z teal ae To LCD REMOCON Central Control i 1 BK BLACK Room Room CO2 OR ORANGE Sensor Sensor Sensor i GN YL GREEN YELLOW WARNING INFORMATION e There is risk of electric shock due to failure or electric leakage You need to buy a dedicated circuit separately Always ground the product _ Field Wiring You can install the product by refering to owner s manual P No 3854A20450D 32 Ventilation System Wiring Diagram Models LZ HO506BA0 LZ H0502BA0 e This product has different wiring method by system configuration Perform the wiring work electric working on several necessary parts areas CAPACITOR CAPACITOR 220 240V 50Hz a 1PHASE SA Fan Motor Aircon indoor T Link to ft Ventilation FUSE 250V 5A CN REMO3 CN DAMPER RY DAMPER ie steal OF f REMOCON CN PLASMA DC12V o RD _
15. Ventilation Mode 3 Total heat ventilation General ventilation Wind velocity Super High High Low Super High High Low Electric current A 1 51 1 39 1 06 1 51 1 39 1 06 Electricity consumption W 260 225 200 260 225 200 Airflow m h 500 500 320 500 500 320 External static press Pa 150 60 28 150 60 28 Temperature efficiency 82 82 86 2 s Enthalpy efficiency ngeling i i es Cooling 76 76 80 Noise dB A 34 32 25 34 32 25 Air Filter Non woven fabric filter Weight kg 52 Dimensions mm 988 W x 1 014 D x 273 H 8 Ventilation System Product Standards Item format Unit LZ H0502BA0 Power V Hz 1 220 60 Ventilation Mode Total heat ventilation General ventilation Wind velocity i Super High High Low Super High High Low Electric current A 1 25 1 07 0 9 1 25 1 07 0 9 Electricity consumption W 258 235 195 258 235 195 Airflow m h 500 500 320 500 500 320 External static press Pa 200 70 28 200 70 28 Temperature efficiency 82 82 86 pa Heating 79 79 83 Enthalpy efficiency Cooling 76 76 80 Noise dB A 34 32 25 34 32 25 Air Filter Non woven fabric filter Weight kg 45 Dimensions mm 988 W x 1 014 D x 273 H Item format Unit LZ HO806BA0 Power V Hz 1 220 240 50 Ventilation Mode Total heat ventilation General ventilation Wind velocity Super High Hig
16. installation of Total Heat Exchanger N The form of Total Heat Exchanger varies according to models AUTO SWING OPERATION SET TEMP FAN SPEED SUBFUNCTION gt se FOOTER BHI AUTO Heater Preheat A x m TITI Sp ee Defrost Humidity wLILTc O10 JET Fiter Outdoor scam y p Time zone 1234 a Operation unii imer n Off no Time When the cover is open 1 Display Screen Heater Button 3 Button for time setting canceling and weekend setting date selecting weekend selecting 4 Play Stop Button 5 Delaying time Button 6 Quick ventilation Button 7 8 9 Ventilating Mode Button Air flow selection Button Humidification Button 10 Power saving filter cleaning Button 11 Plasma Button 12 Time Reset Button 3K Some functions may not work depending on models according to models 16 Ventilation System a How to disassemble How to disassemble In case of service operate through inspecting tool hole installed on the surface of ceiling For main part disassembly follow the instructions below Models LZ H0106BA0 LZ HO156BA0 Control Box e Unscrew the control box cover and disassemble Total Heat Exchanger Filter e Take the Maintenance Cover off and take them out in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the Air
17. several necessary parts areas Identification of inside control box CN DAMPER CN CC CN MOTOR SA CN MOTOR EA FUSE CN POWER CNNI CN OUT CN CO2 Descriptions of symbols marking CN REMO OPTION SWITCH Marking Name Marking Name CN POWER Power Code Connector CN IN Thermistor indoor connector FUSE Fuse CN OUT Thermistor outdoor connector CN MOTOR EA Fan motor connector Exhausted air CN CO2 CO2 Sensor connector CN MOTOR SA Fan motor connector Supplying Air OPTION SWITCH Option Switch CN DAMPER Synchronous Motor connector CN REMO Remote controller terminal block CN SPARE Heater connector CN CC Central controller connector Service Manual 37 Descriptions for Control Circuit I Descriptions for Control Circuit Models LZ H0106BA0 LZ H0156BA0 LZ HO256BA0 Power Supply Initialization of Micom Controller gt Input Data Temperature Data Outdoor Temperature Room Temperature Detecting Abnormalities Normal condition Abnormal condition Reliability Operation by Outdoor Temperature Option S W No 7 Intermittent Operation ON Total heat SA EA OFF OFF Total heat SA OFF EA WEAK Freezing Preventive Operation Total Heat Total heat operation Air flow setting for supply exhaust by Remote Controller and Normal Operation
18. 50 Airflow m h 100 100 70 External static press Pa 40 35 30 Temperature efficiency 78 78 80 ES Heating 68 68 70 Enthalpy efficiency Cooling 58 58 60 Noise dB A 28 26 20 Air Filter Non woven fabric filter Weight kg 24 Dimensions mm 590 W x 590 D x 204 H Item format Unit LZ H0156BA0 Power O V Hz 1 220 240 50 Ventilation Mode Total heat ventilation Wind velocity E Super High High Low Electric current A 0 36 0 36 0 35 Electricity consumption W 83 80 78 Airflow m h 150 150 90 External static press Pa 70 55 45 Temperature efficiency 75 75 79 rn Heating 62 62 69 Enthalpy efficiency Cooling 55 55 59 Noise dB A 32 30 22 Air Filter Non woven fabric filter Weight kg 24 Dimensions mm 590 W x 590 D x 204 H Service Manual 7 Product Standards Item format Unit LZ H0256BA0 Power O V Hz 1 220 240 50 Ventilation Mode Total heat ventilation Wind velocity Super High High Low Electric current A 0 55 0 5 0 34 Electricity consumption W 130 115 80 Airflow m h 250 250 150 External static press Pa 65 50 40 Temperature efficiency 80 80 85 ak Heating 70 70 78 Enthalpy efficiency Cooling 64 64 68 Noise dB A 32 28 21 Air Filter Non woven fabric filter Weight kg 27 Dimensions mm 596 W x 640 D x 320 H Item format Unit LZ HO506BA0 Power V Hz 1 220 240 50
19. 6810 2 MOTOR ASSEMBLY AC INDOOR 4681A20139B 1 1 R Outdoor 346810 1 MOTOR ASSEMBLY AC INDOOR 4681A20139C 2 2 R 263230 1 THERMISTOR NTC 6323A30004J 1 1 1 1 R Indoor 263230 2 THERMISTOR NTC 6323A30004K 1 1 1 1 R Outdoor 349011 DAMPER ASSEMBLY 4901A20002A 1 1 1 1 R 6871A10118C 1 1 R 268714 PCB ASSEMBLY MAIN 6871A10118B 1 1 R WOCZZ CAPACITOR FILM BOX 3H00660W 2 2 2 2 R 152312 FILTER ASSEMBLY AIR CLEANER 5231A30003B 2 2 2 2 R 340090 EXCHANGER ASSEMBLY 4009A20002A 2 2 2 2 R Service Manual 29 Disassemble Diagram Deal Drawing and SVC Parts List Models LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 30 Ventilation System Disassemble Diagram Deal Drawing and SVC Parts List SVC Parts List air ois Item Part No ica A E SVC Remarks L2 H1506BA0 LZ H1502BA0 L2 H2006BA0 LZ H2002BA0 359012 FAN ASSEMBLY BLOWER 5901A30005A 4 4 4 4 R 346810 1 MOTOR ASSEMBLY AC INDOOR 4681A20139A 2 2 R Indoor 346810 2 MOTOR ASSEMBLY AC INDOOR 4681A20139B 2 2 R Outdoor 346810 1 MOTOR ASSEMBLY AC INDOOR 4681A20139C 4 4 R 263230 1 THERMISTOR NTC 6323A30004J 2 2 2 2 R Indoor 263230 2 THERMISTOR NTC 6323A30004K 2 2 2 2 R Outdoor 349011 DAMPER ASSEMBLY 4901A20002A 2 2 2 2 R 6871A10118C 2 2 R 268714 PCB ASSEMBLY MAIN 6871A10118B 7 4 R WOCZZ CAPACITOR FILM BOX 3H00660W 4 4 4 4 R 152312
20. Air Filter Unit mm Pitch of Suspension Fixture Nominal Duct Connection Flange Duct Pitch Model D E p Diameter amp H J K L LZ H0502BA0 LZ HO506BA0 200 K It necessary to secure sufficient space for maintenance more than the dimensions described in the product service Service Manual 49 Feature Dimensions Diagram e LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 Blower for Exhausting Air Suspension Fixture lt RA Return Air A aail ge Exhaust Air a i ec l eee gt SA rs re E Supply Air Blower for OA Supplying Air Outdoor Air gt Y X C n Control box Maintenance Cover Total Heat Exchange Element Air Fil Unit mm Pitch of Suspension Fixture Nominal Duct Connection Flange Duct Pitch D E Fp Diameter G H J K L Model LZ H0806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 180 253 98 513 481 amp It necessary to secure sufficient space for maintenance more than the dimensions described in the product service 50 Ventilation System Feature Dimensions Diagram e LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0
21. Filter out e Be careful not to drop the Total Heat Exchanger from the main body when detaching Fan e Take the fan out after taking the Maintenance Cover off in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the fan out 4 Maintenance screw lt Cover Service Manual 17 How to disassemble In case of service operate through inspecting tool hole installed on the surface of ceiling For main part disassembly follow the instructions below Models LZ H0256BA0 Control Box e Unscrew the control box cover and disassemble Control box cover Screw Total Heat Exchanger Filter e Take the Maintenance Cover off and take them out in case that the Maintenance Cover is screwed up unscrew it first A CAUTION Be careful of sharp area when taking the Air Filter out e Be careful not to drop the Total Heat Exchanger from the main body when detaching Maintenance Cover Fan e Take the fan out after taking the Maintenance Cover off in case that the Maintenance Cover is screwed up unscrew it first A CAUTION Be careful of sharp area when taking the fan out Total Heat Exchanger 18 Ventilation System How to disassemble In case of service operate through inspecting tool hole installed on the surface of ceiling For main part disassembly
22. Precautions To prevent injury to the user or other people and property damage the following instructions must be followed E Incorrect operation due to ignoring instruction will cause harm or damage The seriousness is classified by the following indications AWARNING This symbol indicates the possibility of death or serious injury i ACAUTION This symbol indicates the possibility of injury or damage E Meanings of symbols used in this manual are as shown below D Be sure not to do Q Be sure to follow the instruction AWARNING E For Installation For electric working wiring work Install in a place capable of the Do not arbitrarily disassemble contact Service Center or agency product s weight repair or modify the product you purchased the product e If you disassemble of repair e If the product is installed in a place e It may cause fire or electric shock arbitrarily it may cause fire or incapable of its weight it may cause electric shock an accident by its dropping Be sure to undertake Use an netted inlet for Install the air intake where grounding work external air to prevent birds polluted air can not be directly from entering sucked in e If you do not undertake grounding e Remove any clogs such as bird nest It may cause various accidents work it may cause electric shock It may cause an oxygen deficiency in including suffocation due to the a room suction of harmful gasses CO
23. e 4 Ventilation system does not work It works abnormally Check the checklist table table 4 of ventilation system Troubleshooting d ages Breakdown mode 1 System does not work normally After checking the system check the following checklist Initial checklist table table1 1 from installation to operation No Checklist Are the switch capacity of main power and wiring diameter in accordance with regulations Is the prescribed power supplied to power terminal in ventilation system eo Is the wiring length of transmission line in accordance with regulations for wired remote controller total extension of less than 500m for interlocking air controls maximum extension of less than 200m total extension of less than 500m Is the prescribed transmission line used type of line diameter of line Are the transmission line and power line wired at more than 5cm interval Aren t there any multiple transmission line or signal line in the same wire pipe Aren t multiple transmission lines wired as multicable COrN oO A Does the connecting terminal plate of transmission have trouble for LCD remote controller CN REMO for air conditioner interlocking controls CN AIR 9 Is the transmission line precisely connected to the terminal plate of ventilation system 10 Are the power line transmission line and signal line precisely connected to the indicated terminal plate
24. es according to models Models LZ HO806BA0 LZ H0802BA0 LZ H1002BA0 LZ H1006BA0 5 6 7 8 1 Maintenance Cover 5 Control box 2 Air Filter 6 Blower for Supplying Air It prevents dust from clogging in Total Heat Exchanger It is a fan for inhaling exterior air into an indoor space 3 Total Heat Exchanger 7 Damper plate board It changes temperature and humidity between It converts exchanging mode between total heat Supplying Air and exhausted air ventilation and general ventilation 4 Blower for Exhausting Air 8 Total Heat Exchanger holder It is a fan for discharging the contaminated air to It is used in guiding for the installation of Total Heat outdoor Exchanger The form of Total Heat Exchanger varies according to models Service Manual 15 Descriptions for operation and functions Models LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 1 Maintenance Cover 2 Air Filter It prevents dust from clogging in Total Heat Exchanger 3 Total Heat Exchanger It changes temperature and humidity between Supplying Air and exhausted air 4 Blower for Exhausting Air It is a fan for discharging the contaminated air to outdoor 5 Control box 6 Blower for Supplying Air It is a fan for inhaling exterior air into an indoor space Damper plate board It converts exchanging mode between total heat ventilation and general ventilation 8 Total Heat Exchanger holder It is used in guiding for the
25. etc Service Manual 3 Safety Precautions Wire with prescribed wire and Install in accordance with Electric works should be undertook fix firmly to prevent it from installation manual by an expert in accordance with being pulled out by external installation manual and the impact indicated circuit diagram e Improper wiring and fixing may e Improper installation may cause fire Improper use of wires and electric cause fire and electric shock may cause fire and electric shock cord clamp Be sure to install covers for Be sure to install electric leakage Do not keep flammable inspection and control box circuit breakers ELB and exclusive materials or volatile gas near switch switch for electrics the product e If not water and dust infiltrating into e If not it may cause fire and electric e It may cause fire and breakdown the product may cause fire and shock electric shock Maintenance Cover Cantal Bo cover We a a Be sure to keep the product Use a fuse in standardized When unpacking keep the out of water capacity Use a standardized product from scratches and capacity fuse sharp materials object e It may cause electric shock and e It may cause fire and electric shock e If not it may cause physical damage breakdown E For use Keep out of inflammable For the flooded product Do not use damaged electric contact Service Center leakage circuit breaker or swi
26. follow the instructions below Models LZ H0506BA0 LZ H0502BA0 Control Box e Unscrew the control box cover and disassemble Total Heat Exchanger Filter e Take the Maintenance Cover off and take them out in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the Air Filter out e Be careful not to drop the Total Heat Exchanger from the main body when detaching Fan e Take the fan out after taking the Maintenance Cover off in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the fan out Control box cover Main body I A lig INE lt A Main body Service Manual 19 How to disassemble In case of service operate through inspecting tool hole installed on the surface of ceiling For main part disassembly follow the instructions below Models LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 Control Box e Unscrew the control box cover and disassemble Total Heat Exchanger Filter e Take the Maintenance Cover off and take them out in case that the Maintenance Cover is screwed up unscrew it first A CAUTION Be careful of sharp area when taking the Air Filter out e Be careful not to drop the Total Heat Exchanger from the main body when detaching Fan e Take the fan out af
27. g main PCB be careful of the edge of metal plate When pulling or putting a connector on main PCB do not pull the lead wire instead pull the entire housing For the ventilation system failure No Failure Possible Causes Necessary actions 1 Failure in Operation e Check the power line e Re construct the power e Check the wiring of PCB remote e Wire in accordance with power wiring diagram controller switch e Check if FUSE is disconnected e Replace FUSE 2 Failure in Total Heat Isn t it normal ventilation mode e Convert the function into Exchange Total heat exchange mode e Is damper working normally e Check whether damper is operating while repeating total heat exchange and normal ventilating alternately e Check the PCB remote controller e Wire in accordance with power wiring diagram switch wiring 3 Failure in Operating e Check the PCB remote controller e Wire in accordance with power wiring diagram Remote controller switch switch wiring 4 Failure in e Check the capacitor for fan motor e Re wire for capacitor separation and replacing Supply Exhaust Fan for inferior capacitor Operation e Check the fan motor e Re wire for motor Connector separation and replacing for inferior motor e Defrosting operation e Check the Thermistor Check Outdoor Temperature 5 Failure in Defrosting Operation e Check the Thermistor e Replace the Thermistor 6 Failure in Air flow e Check if it is AC220V for po
28. g to air conditioner set e Release the interlocking setting by remote controller for ventilation system instead interlocking to other air conditioner 5 Communication error in e Connecting failure of transmission line e Check the connection of transmission line ventilation system si zz as na Ta onger wiring length of transmission e Check the wiring length of transmission line than prescribed line 6 Communication error in Communication error in remote e Check the connection of transmission line remote controller controller e Longer wiring length of transmission e Check the wiring length of transmission line line 7 Failure in screen e Power off in ventilation system e Check the power in ventilation system displaying e Incorrect power supplied in ventilation Check the power system e Connecting failure of transmission line e Check the connection of transmission line e Longer wiring length of transmission e Check the wiring length of transmission line than prescribed line e Omission of LED screen on remote e Replace the remote controller controller 8 Arbitrarily operated stop e Too short distance between e Wire the transmission line and power line or converted the mark transmission line and power line at more than 5cm interval 9 when power on the e Power off during operation of ventilation Stop the ventilation system using remote remote controller is indicated and ventilation system operates system controller and
29. h Low Super High High Low Electric current A 2 8 2 7 2 6 2 8 2 7 2 6 Electricity consumption W 405 360 320 405 360 320 Airflow m h 800 800 660 800 800 660 External static press Pa 200 110 60 200 110 60 Temperature efficiency 79 79 82 a a Heating 70 70 75 Enthalpy efficiency Cooling 65 65 70 Noise dB A 36 34 30 36 34 30 Air Filter Non woven fabric filter Weight kg 67 Dimensions mm 1 062 W x 1 140 D x 365 H Service Manual 9 Product Standards Item format Unit LZ H0802BA0 Power O V Hz 1 220 60 Ventilation Mode Total heat ventilation General ventilation Wind velocity i Extremely strong Strong Weak mild Extremely strong Strong Weak mild Electric current A 3 1 3 0 2 5 3 1 3 0 2 5 Electricity consumption Ww 585 555 470 585 555 470 Airflow m h 800 800 660 800 800 660 External static press Pa 200 110 60 200 110 60 Temperature efficiency 79 79 82 R Heating 70 70 75 Enthalpy efficiency Cooling 65 65 70 Noise dB A 36 34 30 36 34 30 Air Filter Non woven fabric filter Weight kg 67 Dimensions mm 1 062 W x 1 140 D x 365 H Item format Unit LZ H1006BA0 Power V Hz 1 220 240 50 Ventilation Mode g Total heat ventilation General ventilation Wind velocity Extremely strong Strong Weak mild Extremely strong Strong Weak m
30. ild Electric current A 3 0 2 9 2 6 2 8 2 7 2 4 Electricity consumption WwW 560 540 470 560 540 470 Airflow m h 1 000 1 000 800 1 000 1 000 800 External static press Pa 160 90 50 200 110 60 Temperature efficiency 75 75 78 s Enthalpy efficiency ngeling i 2 4 Cooling 61 61 66 Noise dB A 37 35 31 37 35 31 Air Filter Non woven fabric filter Weight kg 67 Dimensions mm 1 062 W x 1 140 D x 365 H 10 Ventilation System Product Standards Item format Unit LZ H1002BA0 Power 0 V Hz 1 220 60 Ventilation Mode Total heat ventilation General ventilation Wind velocity i Extremely strong Strong Weak mild Extremely strong Strong Weak mild Electric current A 3 5 3 4 2 9 3 5 3 4 2 9 Electricity consumption WwW 675 655 560 675 655 560 Airflow m h 1 000 1 000 800 1 000 1 000 800 External static press Pa 200 110 60 200 110 60 Temperature efficiency 75 75 78 x pa Heating 66 66 71 Enthalpy efficiency Cooling 61 61 66 Noise dB A 37 35 31 37 35 31 Air Filter Non woven fabric filter Weight kg 67 Dimensions mm 1 062 W x 1 140 D x 365 H Item format Unit LZ H1506BA0 Power O V Hz 1 220 240 50 Ventilation Mode Total heat ventilation General ventilation Wind velocity Extremely strong Strong Weak mild Extremely strong Strong Weak mild
31. ion W 1 020 970 860 1 020 970 860 Airflow m h 2 000 2 000 1 600 2 000 2 000 1 600 External static press Pa 160 90 50 200 110 60 Temperature efficiency 75 75 78 s Enthalpy efficiency meena Cooling 61 61 66 Noise dB A 42 38 33 42 38 33 Air Filter Non woven fabric filter Weight kg 146 Dimensions mm 1 313 W x 1 140 D x 737 H 12 Ventilation System Product Standards Item format Unit LZ H2002BA0 Power V Hz 1 220 60 Ventilation Mode Total heat ventilation General ventilation Wind velocity i Super High High Low Super High High Low Electric current A 7 0 6 8 5 8 7 0 6 8 5 8 Electricity consumption W 1 344 1 306 1 122 1 344 1 306 1 122 Airflow m h 2 000 2 000 1 600 2 000 2 000 1 600 External static press Pa 200 110 70 200 110 70 Temperature efficiency 75 75 78 x p Heating 66 66 71 Enthalpy efficiency Cooling 61 61 66 Noise dB A 42 38 33 42 38 33 Air Filter Non woven fabric filter Weight kg 146 Dimensions mm 1 313 W x 1 140 D x 737 H Service Manual 13 Descriptions for operation and functions K Descriptions for operation and functions Models LZ H0106BA0 LZ H0156BA0 2 5 3 6 4 1 Blower for Air Supply A blower for sucking outside air 5 Total Heat Exchanger 2 Control Box Exchanges temperature and moisture between air 3 Blower for Exhausting supply air a
32. nd exhaust air A blower for draining polluted air outside 6 Air Filter 4 Maintenance cover Prevents clogging of the Total heat exchanger due to The figure of Total heat Exchanger can be different by the Product Model Models LZ H0256BA0 2 3 1 Air Filter 3 Blower for Exhausting Prevents clogging of the Total heat exchanger due to A blower for draining polluted air outside dust 4 Control Box 2 Total Heat Exchanger 5 Blower for Air Supply Exchanges temperature and moisture between air A blower for sucking outside air supply air and exhaust air 6 Maintenance cover amp The figure of Total heat Exchanger can be different by the Product Model 14 Ventilation System Descriptions for operation and functions Models LZ HO506BA0 LZ H0502BA0 5 6 7 8 1 Maintenance Cover 5 Control box 2 Air Filter 6 Blower for Exhausting Air It prevents dust from clogging in Total Heat Exchanger It is a fan for inhaling exterior air into an indoor space 3 Total Heat Exchanger 7 Damper plate board It changes temperature and humidity between It converts exchanging mode between total heat Supplying Air and exhausted air ventilation and general ventilation 4 Blower for Exhausting Air 8 Total Heat Exchanger holder It is a fan for discharging the contaminated air to It is used in guiding for the installation of Total Heat outdoor Exchanger The form of Total Heat Exchanger vari
33. normally Checklist table table3 for using ZCON BS2 No Details Possible Causes Necessary actions 1 No message displayed on LC screen e Different transmission line connection terminal e Check the connection of transmission line CN REMO on the ventilation system panel e No power on ventilation system e Check the power in ventilation system e Incorrect power on ventilation system e Check the power e Connecting failure of transmission line e Longer wiring length of transmission line than prescribed more than 500m e Check the wiring length of transmission line 2 Arbitrarily e Several transmission lines wired e With exclusive wires wire each transmission operated stop or with muticables line at intervals converted displays e Transmission line wired in too e Wire transmission line and power line at more closely to power line than 5cm intervals 3 Checking number other e Omission of liquid crystal letter on e Replace remote controller than the checking remote controller number list is displayed 4 Impossible to stop e Under interlocking operation in air e No error ventilation system with conditioner e Activate the ventilation stop in air conditioner remote controller to stop ventilating interlocking operation 5 Main power is displayed Disconnected main power during e Stop the ventilation system with remote on remote controller and ventilation sys
34. r Supply Fan Motor 4 Fan Motor 5 S BK a BK OR L IN JG role Indoor Unit of Air conditioner Q oO CN SA CN EA SNTEOWER el L L4j 14 4 TRIAG TBS ws l l TO Link to Ventilation i CN REMO3 BK 5 ano Damper RD Normal o o M otor BR o fital heat oe 5 Te aaa _CN DEMPER_ RY DEMPER o i A Air a T l GND BR re gt Wired te Ho I ired remo cleaning dG I Main PCB SIGNAL O YL controller CARTES NA CN PLASMA DC12V EJ connection CN REMO I 1 Central 1 controle EZFZZR I O n Swi CN IN cn out_ cn coz Mamawaaa o ollo Oifool ezezvese been ee 1 666060066 Paw Indoor Outdoor CO2 Thermistor Thermistor NJ S Senor Capacitor Capacitor BR 10 BR BRD Jy BR BL BL 2 N SA Fan Motor Fan Motor BK OR BK OR L_IN G Q O cn power CN SA CN EA TRIAC TRIAC ws CN AIR a e GND CN REMO3 Damper RD Normal S or JBR ol otal heat oe o CN DEMPER RY DEMPER fo ee ee i a scene 4 2R cleaning __ ___ l Main PCB GND O aake TA Seine L CN PLASMA SIGNAL O OPTION eerinarecata ee tedden ea 7 DC12v O 8 CN REMO 8 swt 2 CN IN CN OUT CN CO2 alll alfa I rNO TH OND cn cc O OJ JO ql o e gee eee aE Note l if eae Y NAR BK Black Indoor Outdoor CO2 BR Brown Thermistor Thermistor icoz Sensor RD Red YL Yellow I BL Blue WARNING Information oan Orange Prepare a circuit breaker on separate GN YL Green Yellow Be sure to install electric leakage circuit b
35. reaker and switch Be sure to undertake grounding work purchase Factory wiring Field wiring on the spot wiring Service Manual 35 Control Part Detailed Drawing Models LZ H0106BA0 LZ H0156BA0 LZ HO256BA0 This product has different wiring method by system configuration Perform the wiring work electric working on several necessary parts areas Identification of inside control box CN MOTOR SA CN DAMPER CN SPARE CN MOTOR EA CN POWER CN REMO cwo OPTION SWITCH CN IN CN OUT CN CO2 Descriptions of symbols marking Marking Name Marking Name CN POWER Power Code Connector CN IN Thermistor indoor connector FUSE Fuse CN OUT Thermistor outdoor connector CN MOTOR SA Fan motor connector Supplying Air CN CO2 CO2 Sensor connector CN MOTOR EA Fan motor connector Exhausted air OPTION SWITCH Option Switch CN DAMPER Synchronous Motor connector CN REMO Remote controller terminal block CN SPARE Heater connector CN CC Central controller connector 36 Ventilation System Control Part Detailed Drawing Models LZ HO506BA0 LZ H0502BA0 LZ HO806BA0 LZ H0802BA0 LZ H1006BA0 LZ H1002BA0 LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 This product has different wiring method by system configuration Perform the wiring work electric working on
36. t may cause explosion physical damage appearance due to dust in the product the and fire discoloration or scratches effect of ventilation may be on the product reduced it may not well ventilated Service Manual 5 Standards for Model H Standards for Model LZ HO506BA0 T rial No Marking in a developed order Function A Basic L Nano Plasma Clean Wall mounted C Plasma Ceiling Cassette G Low Static Moter Product Type B duct type hidden in ceiling T cassette type for ceiling W for window Electrical Rating 6 10 220 240V 50Hz Ventilation Capacity Ventilating Ability Excluding the first digit of ventilating capacity per hour 50 500CMH Heat Exchange Mode H Total heat including humidity T Sensible heat temperature only Product classification LZ ventilation ZCON BS 2 ES Serial No Marking in a developed order Grade S Standard D Deluxe Additional Functions B Base Model M possible to connect Multi V Product Name ZCON Controller 6 Ventilation System Bi Product Standards Product Standards Item format Unit LZ H0106BA0 Power V Hz 1 220 240 50 Ventilation Mode Total heat ventilation Wind velocity Super High High Low Electric current A 0 32 0 3 0 28 Electricity consumption W 68 60
37. tch e It may cause fire e It may cause fire and electric shock 4 Ventilation System Safety Precautions ACAUTION E For Installation Do not touch electric leakage Install the product in an Do not install in oily place circuit breaker or switch with insulated space such as kitchen and factory wet hands e It may cause electric shock e If the product is installed outside of e It may cause breakdown due to oils insulating layer surface it may cause a stained to filter or electric heat dew formation inside main body electric exchanger shock and dropping of condensed water Do not install in Switch the power off Do not connect Do not carry the humid place suchas during cleaning grounding line to product alone bathroom window frame chassis and tap e It may cause electric shock e It may cause fire and e It has a danger of electric Otherwise it may cause and breakdown electric shock shock physical damage grounding line E For use Do not use for special Do not use strong Clean filter and heat In case of gas leakage purposes and places detergent such as exchanger regularly open the window to including animals and wax or thinner in case with your gloves on change air ventilate plants sensitive of cleaning instead before using remote equipment and art pieces use soft cloth controller e Otherwise it may cause e It ruins external e With a large quantity of e I
38. tem operation controller and temporarily disconnect the then ventilation system main power operates 6 Impossible to operate e LOCK is set in the upper controller e Check the upper controller setting or stop ventilation e Interlocking ON OFF preferable to system with remote external is set controller central controlling sign is displayed 7 Impossible to operate e Under operation in LCD remote e No error or stop ventilation system with remote controller multi remote controller displayed controller e Activate the ventilation stop in LCD remote controller to stop ventilating Service Manual 45 Troubleshooting 304 Breakdown mode 4 Ventilation system does not work It works abnormally Checklist table table 4 of ventilation system No Details Possible Causes Necessary actions 1 Fan does not operate failure in fan operation e Connecting failure in control circuit connector or fan related connector e Check the connection of control circuit connector and lead line connecting connector e No power on ventilation system or incorrect power e Check the power Central control is set in ventilation system e Check LOCK of central control and address of ventilation system 2 No interlocking to e Incorrect terminal plate for e Check the connection of external control external equipment air connecting to external signals terminal CN AIR conditioner
39. temporarily turn the power off Service Manual 41 Troubleshooting Instructions for diagnostics When replacing main PCB detach the supporter for fixing the main PCB from PCB When separating main PCB be careful of the edge of metal plate When pulling or putting a connector on main PCB do not pull the lead wire instead pull the entire housing After replacing main PCB establish the switch setting on main PCB in the same manner as the previous main PCB Checkup items 1 Breakdown condition Remote controller display etc 2 Breakdown frequency The first starting date of operation the first date of breakdown 3 Breakdown timing 4 presence of contract drawing Equipment including separate purchase control equipment wiring piping setting 42 Ventilation System Breakdown mode1 system does not start normally e Check the initial checklist table table1 1 indicating from installation to operation e If using wired remote controller check the system checklist table table1 2 Breakdown mode2 Abnormal failure code is displayed on remote controller LED is flickering on the circuit panel of ventilation system y Check the LED signs table table 2 and error codes displayed in ZCON BS2 Series Breakdown mode 3 Remote controller does not work It works abnormally y Check the checklist table table3 for using ZCON BS2 Breakdown mod
40. ter taking the Maintenance Cover off in case that the Maintenance Cover is screwed up unscrew it first A CAUTION Be careful of sharp area when taking the fan out 20 Ventilation System Control box cover Maintenance Cover Main body Main body How to disassemble In case of service operate through inspecting tool hole installed on the surface of ceiling For main part disassembly follow the instructions below Models LZ H1506BA0 LZ H1502BA0 LZ H2006BA0 LZ H2002BA0 Control Box e Unscrew the control box cover and disassemble Control box cover Screw Total Heat Exchanger Filter e Take the Maintenance Cover off and take them out in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the Air Filter out e Be careful not to drop the Total Heat Exchanger from the main body when detaching Fan e Take the fan out after taking the Maintenance Cover off in case that the Maintenance Cover is screwed up unscrew it first A CAUTION e Be careful of sharp area when taking the fan out Service Manual 21 Disassemble Diagram Deal Drawing and SVC Parts List H Disassemble Diagram Deal Drawing and SVC Parts List Models LZ H0106BA0 LZ H0156BA0 22 Ventilation System Disassemble Diagram Deal Drawing
41. wer of e If itis AC220V the air flow control relay is in bad Control PCB fan motor terminal condition replace PCB 7 Failure in Damper e Check the connection of connector to Re wire for damper connector separation and Operation PCB replacing for inferior connector e Isn t it in defrosting operation Check the Outdoor temperature The part marked with is not applied to LZ H102SB 152SB 252SB 40 Ventilation System Troubleshooting For the remote controller failure No Failure Possible Causes Necessary actions 1 No Display on Remote Controller e No power supply to ventilation system e Check power of ventilation system e Longer wiring length of transmission wire than standards e Check the length of transmission wire 2 Impossible to Operate e Longer wiring length of transmission e Check the length of transmission wire Remote Controller wire than standards 3 No Interlocking with e Delay mode set in remote controller e Check the delay mode setting of remote External Equipment controller e Single operation mode set in remote e Check the interlocking mode setting of controller remote controller e Longer wiring length of signal wire to e Check the wiring length of signal wire external equipment than standards e No input of external equipment signals Check the external equipment 4 Failure in single operation e Interlockin
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