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Si71-502

Troubleshooting

Troubleshooting

1.14

Main Unit PCB Assembly

Error Detection
Method

Check microcomputer operation monitor.

Error Generating
Conditions

When main unit PCB assembly does not operate.
When communication circuit errors.

Possible Causes

Fuse (excess current)
Power transformer
Noise
Main unit PCB

Troubleshooting

Main unit PCB

YES

Does equipment

reset properly.

Is it flashing?

After checking
other possible
causes, replace
PCB assembly.

Is monitor indicator

Off?

YES

Monitor indicator remains
On.

With remote controller
disconnected, check
microcomputer operation
monitor.

Turn off power, then
restart.

Noise may be causing erroneous
operation. If power reset does not
solve the problem, replace main unit
PCB.

There may be a malfunction in main
unit PCB fuse, main unit PCB or power
transformer.
Check fuse and transformer. If they are
normal, replace PCB.

Replace main unit PCB.

(HF013)

Exhaust
air fan

Supply
air fan

CN3

CN4

CN2

CN1

CN7

FuL

10A

CN13

CN8

CN12

CN5

CN6

CN9

KRP

50-2

CN11

CN10

LED A

(HL031)

(Microcomputor Operation Monitor)

Содержание VAM 150GJVE

Страница 1: ...choose an outdoor unit with anti corrosion treatment Cautions on product corrosion Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor t...

Страница 2: ... Contents i Heat Reclaim Ventilation Heat Reclaim Ventilation Heat Reclaim Ventilation Heat Reclaim Ventilation VAM 150GJVE VAM 250GJVE VAM 350GJVE VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM1000GJVE VAM1500GJVE VAM2000GJVE ...

Страница 3: ...ized controller DCS302C A 61 14 Part 4 Maintenance 15 1 Maintenance 16 1 1 Maintenance for the Air Filter 16 1 2 Maintenance for the Heat Exchange Element 19 Part 5 Control Functions 21 1 Control Functions 22 1 1 List of Control Functions 22 1 2 Explanation of Individual Functions 23 1 3 Layout of switches on Printed Circuit Board 29 Part 6 Circuit Operations 31 1 Circuit Operations 32 1 1 Circuit...

Страница 4: ...bined Operation 78 3 2 Programming Start and Stop of the System with Timer 82 3 3 Nighttime Free Cooling Operation 84 4 Maintenance for a Qualified Service Person Only 85 4 1 How to Clean the Air Filter 85 4 2 Optimum Operation 87 4 3 How to Clean the Heat Exchange Element 88 4 4 Inspection of the Fan Moter 89 5 Troubleshooting 90 5 1 The Following Situations are not Malfunctions 90 5 2 If One of ...

Страница 5: ...Si71 502 iv Table of Contents Part 10Appendix 95 1 Appendix 96 1 1 Wiring Diagram 96 Index i Drawings Flow Charts iii ...

Страница 6: ...wed Therefore be sure to observe all the safety caution items described below About the pictograms This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that must be taken or an instructio...

Страница 7: ...Introduction Si71 502 vi 1 1 1 Cautions in Operation and Maintenance ...

Страница 8: ...Si71 502 Introduction vii ...

Страница 9: ...able but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to other plac...

Страница 10: ...Si71 502 General Constructions 1 Part 1 Part 1 Part 1 Part 1 General Constructions General Constructions General Constructions General Constructions 1 General Constructions 2 1 1 Explanation 2 ...

Страница 11: ... Filter Long Life Filter 5 Damper 6 Control Box 7 Maintenance Cover 8 Heat Exchange Elements 9 Name Plate 10 Air Supply Fan 11 Remote Controller Option Accessory 12 Damper Plate 13 EA Exhaust Air Exhaust Air to Outdoor 14 OA Outdoor Air Fresh Air from Outdoor 15 Maintenance Space for The Air Filters Heat Exchange Elements and Control Box 16 RA Return Air Exhaust Air from Room 17 SA Supply Air Feed...

Страница 12: ...r 8 Heat Exchange Elements 9 Name Plate 10 Air Supply Fan 11 Remote Controller Option Accessory 12 Damper Plate 13 EA Exhaust Air Exhaust Air to Outdoor 14 OA Outdoor Air Fresh Air from Outdoor 15 Maintenance Space for The Air Filters Heat Exchange Elements and Control Box 16 RA Return Air Exhaust Air from Room 17 SA Supply Air Feed Air to Room HL016 1 7 9 6 10 3 2 5 4 8 11 12 13 14 16 17 15 HL017...

Страница 13: ...General Constructions Si71 502 4 General Constructions ...

Страница 14: ...Si71 502 Product Specification 5 Part 2 Part 2 Part 2 Part 2 Product Specification Product Specification Product Specification Product Specification 1 Product Specification 6 1 1 Specification 6 ...

Страница 15: ...ow 70 70 5 66 66 70 70 Heating Ultra High 72 72 71 71 70 70 High 72 72 71 71 70 70 Low 76 76 5 74 74 77 77 Casing Galvanized steel plate Insulation material Self extinguishable urethane foam Dimensions H W D mm 278 810 551 278 810 551 306 879 800 Heat exchange system Air to air cross flow total heat sensible heat latent heat exchange Heat exchange element Specially processed nonflammable paper Air...

Страница 16: ... 5 Heating Ultra High 67 67 67 5 67 5 65 65 High 67 67 67 5 67 5 65 65 Low 74 74 5 71 5 72 67 5 68 Casing Galvanized steel plate Insulation material Self extinguishable urethane foam Dimensions H W D mm 306 879 800 338 973 832 387 1 111 832 Heat exchange system Air to air cross flow total heat sensible heat latent heat exchange Heat exchange element Specially processed nonflammable paper Air filte...

Страница 17: ...0 70 65 65 72 72 High 70 70 65 65 72 72 Low 72 5 73 67 67 5 75 76 Casing Galvanized steel plate Insulation material Self extinguishable urethane foam Dimensions H W D mm 387 1 111 1 214 785 1 619 832 785 1 619 1 214 Heat exchange system Air to air cross flow total heat sensible heat latent heat exchange Heat exchange element Specially processed nonflammable paper Air filter Multidirectional fibrou...

Страница 18: ...planation for Systems 10 1 2 Operation HRV Units with the Remote Control exclusively for Air Conditioning Operation BRC301B61 11 1 3 Operating the HRV Unit Using the Remote Controller of the VRV System Air Conditioner 13 1 4 Independent operation of the HRV unit using the Centralized controller DCS302C A 61 14 ...

Страница 19: ...es The remote controller for VRV turns on and off the air conditioner and HRV unit If only the HRV unit is used without operating the air conditioner set the unit in the VENTILATION mode Centralized System When the HRV remote controllers is not connected the Centralized controller controls the operation of the HRV unit When the HRV remote controllers is connected operation can be started and stopp...

Страница 20: ... rate can be changed over to Low mode or High mode FRESH UP Low FRESH UP mode FRESH UP High FRESH UP mode For FRESH UP operation When this indication does not show The volume of outdoor air supplied into the room and that of the room air exhausted outdoors is equivalent For FRESH UP operation If it is set to Fresh up air supply The volume of outdoor air supplied into the room is larger than that o...

Страница 21: ...e the office hours During this period the cooling or heating load is reduced to bring the room temperature to the set temperature in a short time 7 Indication of centralized control When a remote controller for air conditioners or devices for centralized control are connected to the HRVs this indication may show During this indication appears on the display the ON OFF and timer operation may not b...

Страница 22: ... when is pushed the time advances one hour Each time when is pushed the time goes back one hour 13 Push the button Then the reservation is finished Either or changes from flashing to lighting After the reservation is finished the remaining time is indicated in the display For cancelling the timer operation push the button once again The indication disappears 14 If you press these buttons when usin...

Страница 23: ... where the only the HRV unit operation is desired press the operation mode selector and select VENTILATION The HRV unit can then be operated independently from the air conditioner When the FILTER indication appears on the display clean the filter of the HRV unit Refer to the section 3 NOTE Current Ventilation mode can be visible and selected on the remote controller TEST hr TEST NOT AVAILABLE hr O...

Страница 24: ...i71 502 Maintenance 15 Part 4 Part 4 Part 4 Part 4 Maintenance Maintenance Maintenance Maintenance 1 Maintenance 16 1 1 Maintenance for the Air Filter 16 1 2 Maintenance for the Heat Exchange Element 19 ...

Страница 25: ...ure to turn off the OPERATION switch and disconnect the power CLEANING FREQUENCY AT LEAST ONCE EVERY TWO YEARS FOR GENERAL OFFICE USE CLEAN THE ELEMENT MORE FREQUENTLY IF NECESSARY 1 Go into ceiling through the inspection hole remove the hanging metals of maintenance cover and take it off VAM150 1000GJVE VAM1500 2000GJVE 1 Maintenance Cover 2 Binding Metal 3 Hanging Metal 1 Maintenance Cover 2 Bin...

Страница 26: ...h hand or remove dust with a vacuum cleaner If excessively dirty wash it in water 4 If the air filter is washed remove water completely and allow to dry Air filter for 20 to 30 minutes in the shade When dried completely install the air filter back in place 1 Heat Exchange Element X2 2 Handle 3 Rail 4 Air Filter 2 1 Heat Exchange Element X4 2 Handle 3 Rail 4 Air Filter 4 ...

Страница 27: ...Do not dry the air filter over a fire 3 Do not expose the air filter to direct sunlight 4 Do not use organic solvent such as gasoline and thinner on the air filter 5 Be sure to install the air filter after servicing Missing air filter causes clogged heat exchange element The air filter is an optional item and the replacement is available ...

Страница 28: ...e of the heat exchange element Use the vacuum cleaner equipped with a brush on the tip of the suction nozzle Lightly contact the brush on the surface of the heat exchanging element when cleaning Do not crush the heat exchange element while cleaning 2 Install the air filter securely in place 3 Put the heat exchange element on the rail and insert it securely in place 4 Install the maintenance cover ...

Страница 29: ...Maintenance Si71 502 20 Maintenance ...

Страница 30: ...rt 5 Part 5 Part 5 Control Functions Control Functions Control Functions Control Functions 1 Control Functions 22 1 1 List of Control Functions 22 1 2 Explanation of Individual Functions 23 1 3 Layout of switches on Printed Circuit Board 29 ...

Страница 31: ...er output based on temperature controller judgment Note 1 2 5 Pre cool pre heat function Prevents equipment operation for a preset time set time after air conditioner is turned on 2 6 Fresh up function Sets motor tap so that supply air fan airflow rate is larger than exhaust air fan airflow rate 2 7 Filter sign function Stores cumulative operation hour data and turns on air filter cleaning indicat...

Страница 32: ...er sign reset Stop Heat reclaim ventilation unit Ventilation fan motor Damper motor ventilation mode Normal ventilation Total heat exchange ventilation Remote controller indication Operation lamp ON OFF ON Filter sign indicator ON ON HL020 Total heat exchange ventilation ON Operation Normal ventilation mode selection Air conditioner fan OFF Air conditioner fan ON Air conditioner ON OFF Operation F...

Страница 33: ...d 150 min 3 Others a Heat reclaim ventilation unit must be in non operating condition for two consecutive hours or more prior to pre cool pre heat operation b Temperature control mode of the air conditioner must be set to Cool Heat or Dry Note Operation standby indication is displayed only on LCD remote controller of heat reclaim ventilation unit Operation Normal ventilation mode selection Pre coo...

Страница 34: ...imultaneous ON OFF from remote controller for air conditioner Allows independent operation of heat reclaim ventilation unit from VRV system remote controller during interim periods not possible when direct duct connection is used Operation Normal ventilation mode selection Air conditioner ON OFF Operation Fan motor Heat reclaim ventilation unit Ventilation fan motor 10 sec Damper motor ventilation...

Страница 35: ...n start time after other air conditioners operating together with the unit have been stopped Off 2 hours 4 hours 6 hours 8 hours 2 Pre cool pre heat on off setting Off On 3 Pre cool pre heat time setting 30 min 45 min 60 min 4 Fan speed initial setting Normal Ultra high 5 Yes No setting for direct duct connection with VRV system No duct Air flow setting With duct fan off Setting for cold areas Fan...

Страница 36: ...on external input Remote controllers are available while the external input terminal is closed Remote controllers are not available while the external input terminal is open External input is not available with interlocked operation of HRV units and air conditioners Priority on operation Either air conditioner remote controllers with interlocked operation of HRV units and air conditioners or exter...

Страница 37: ...Connect one end of the harness to the X15A on the print board and the other end to the harness leading to the damper via a connector such as a closed connector With regard to closed connector select one that suits wire diameter Essential Setting Changes The X15A output is at the default setting and is not in operation so the output setting should be changed at the LCD of the remote controller Sett...

Страница 38: ... 2 Secondary 3 Primary 4 Connector for supply air fan 5 Connector for exhaust air fan 6 Connector for damper 7 Power supply 8 Terminals 9 Connector for KPR50 2 10 Connector for damper 11 Connector for indoor air thermistor 12 Connector for outdoor air thermistor 13 Selector switch 14 Terminal port for remote controller 15 Terminal port for centralized control 16 Terminal port for no voltage extern...

Страница 39: ...ontroller for HRV unit This terminal is used to receive information of the indoor unit for interlocked operation This terminal is used to receive information when centralized controller is connected Between terminal no J1 JC Used for fresh up operation by external input Between terminal no J2 JC Used for Operation Stop by external input Power supply Remote controller Centralized control Input from...

Страница 40: ...502 Circuit Operations 31 Part 6 Part 6 Part 6 Part 6 Circuit Operations Circuit Operations Circuit Operations Circuit Operations 1 Circuit Operations 32 1 1 Circuit Configuration 32 1 2 Circuit Functions 33 ...

Страница 41: ...r motor relay Central data transmission interface circuit Remote control signal transmission interface circuit Relay drive circuit Microcomputer oscillation circuit Microcomputer reset circuit Control microcomputer Thermistor interface circuit Thermistor Airflow rate setting switch interface circuit Damper motor limit switch interface circuit Damper motor limit switch External input interface circ...

Страница 42: ...elay coils Fan motor damper motor relay Power supply relay for fan motor and damper motor Input Thermistor interface Uses thermistor temperature sensor to detect inside and outside temperatures Airflow rate setting switch interface Used to set airflow rate of main unit when dedicated remote controller is not used External input interface Used to control main unit with external contact point Fresh ...

Страница 43: ...Circuit Operations Si71 502 34 Circuit Operations ...

Страница 44: ...7 Damper System Error Alarm 42 1 8 Dedicated LCD Remote Controller 43 1 9 Data Transmission Error Between LCD Remote Controller and Main Unit 44 1 10 Data Transmission Error LCD Remote Controller 45 1 11 Data Transmission Error Between LCD Master Remote Controller and Slave Remote Controller 46 1 12 Field Setting Error 47 1 13 Overlapping Central Control Address 48 1 14 Main Unit PCB Assembly 49 1...

Страница 45: ...ing Outside air thermistor error P40 6A ON OFF Blinking Damper system alarm P41 6A Blinking Blinking Blinking Damper system thermistor error P42 U5 Blinking Blinking Blinking Data transmission error between LCD remote controller and main unit P44 U5 OFF Blinking OFF LCD remote controller connection error P45 U8 OFF Blinking OFF Data transmission error between master slave LCD remote controllers P4...

Страница 46: ...t during operation Overall Alarm must be set in field setting mode Note 1 Possible Causes Faulty external device Broken wire Faulty control PCB Troubleshooting Note Note 1 Refer the field setting mode page 26 Setting mode 18 Setting switch 8 Setting position 02 Measure resistance between external input terminals J1 JC Is resistance 200 Ω or lower YES YES Remove the cause of error in connected exte...

Страница 47: ...uit during operation Overall Malfunction must be set in field setting mode Note 2 Possible Causes Faulty external device Broken wire Faulty control PCB Troubleshooting Note Note 2 Refer the field setting mode page 26 Setting mode 18 Setting switch 8 Setting position 03 Measure resistance between external input terminals J1 JC Is resistance 200 Ω or lower YES YES Remove the cause of error in connec...

Страница 48: ...ersion table when measuring resistance Thermistor temperature resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check resistance Remove Indoor air thermistor R1T from X12A 3P on control PCB and measure resistance Is thermistor normal Note 1 YES NO Replace indoor air thermistor If there is no faulty contact replace control PCB ...

Страница 49: ...ersion table when measuring resistance Thermistor temperature resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check resistance Remove outdoor air thermistor R2T from X13A 2P on control PCB and measure resistance Is thermistor normal Note 1 YES NO Replace outdoor air thermistor If there is no faulty contact replace control PC...

Страница 50: ... contact in connector including relay connector Faulty control PCB assembly Troubleshooting Note Note 1 Place tester probes on connectors of limit switch Move switch by hand and check continuity If tester indicates 0Ω when limit switch turns on and infinity when it turns off limit switch is normal Place tester probes on connectors of damper motor and check resistance If tester indicates approx 17 ...

Страница 51: ...damper motor or limit switch Faulty indoor air thermistor Faulty outdoor air thermistor Frosting Broken wire in cable Faulty contact in connector including relay connector Faulty control PCB assembly Troubleshooting Check error record on malfunction history display in service mode Is 64 recorded YES YES YES Take corrective measures specified for damper system error alarm Remove the cause of proble...

Страница 52: ...CB Check to see if master slave remote controller is used Check microcomputer operation monitor on main unit PCB Is it flashing YES YES Change master slave selection switch to set proper master slave relation One should be set to Master and the other set to Slave Replace remote controller Replace main unit PCB Is master slave remote controller used HF007 NO NO Master slave selection switch Remote ...

Страница 53: ...at terminal board Check with power turned on With remote controller cable disconnected voltage between P1 and P2 on terminal board should be approx 16 VDC If measured value is not approx 16 VDC PCB assembly is faulty Connect remote controller cable and disconnect remote controller Voltage at the end of remote controller cable should be approx 16 VDC If measured value is not 16 VDC remote controlle...

Страница 54: ...on is not performed correctly for a certain time period Possible Causes Erroneous connection Faulty remote controller setting Faulty remote controller Troubleshooting Is master slave selection switch properly set YES YES Correct wiring Replace remote controller Set one master slave selection switch to Master and set the other to Slave Then turn off power and restart operation Replace either master...

Страница 55: ...onditions When data transmission is not performed correctly for a certain time period Possible Causes Faulty remote controller setting Faulty remote controller Troubleshooting NO NO Is master slave selection switch set to Master YES Is master slave remote control used Is master slave selection switch properly set YES Set master slave selection switch to Master Turn off power then restart Replace r...

Страница 56: ...er Right Wrong Heat reclaim ventilation unit only Heat reclaim ventilation unit Right Heat reclaim ventilation unit only Air conditioner Right Heat reclaim ventilation unit air conditioner Heat reclaim ventilation unit Wrong Heat reclaim ventilation unit air conditioner Air conditioner Right YES YES Check the system and correct connections Change connections so that 16 or fewer units are connected...

Страница 57: ...mote controller microcomputer checks for double setting of addresses Error Generating Conditions When same address is set to two or more units Possible Causes Overlapping of central control address Faulty remote control Troubleshooting Change central control address settings using remote controller Then turn off power and restart Does equipment reset properly YES Replace remote controller End of c...

Страница 58: ...ses replace PCB assembly Is monitor indicator Off YES YES Monitor indicator remains On With remote controller disconnected check microcomputer operation monitor Turn off power then restart Noise may be causing erroneous operation If power reset does not solve the problem replace main unit PCB There may be a malfunction in main unit PCB fuse main unit PCB or power transformer Check fuse and transfo...

Страница 59: ...ster check continuity between two wires in cable Is measured value MΩ infinity NO YES With remote controller cable disconnected from main unit PCB check voltage between P1 and P2 on main unit terminal board Is measured value approx 16 VDC NO YES Connect remote controller cable to main unit PCB and disconnect remote controller Check voltage at the end of cable on remote control side Is measured val...

Страница 60: ...er Option Check 2 Dedicated LCD remote controller Option Check 3 Dedicated LCD remote controller Option JC J2 J1 F2 F1 P2 P1 HL034 Main unit PCB HL035 JC J2 J1 F2 F1 P2 P1 Main unit PCB P2 P1 HL036 LCD remote controller Remote controller for heat reclaim ventilation JC J2 J1 F2 F1 P2 P1 Main unit PCB ...

Страница 61: ...tor is faulty Use tester to check resistance NO YES Is resistance as shown below Thermistor is normal Remove thermistor from main unit PCB X12A X13A and check resistance using tester If measured value deviates significantly from values in the table thermistor is faulty HF015 Thermistor temperature Sensor resistance Thermistor temperature Sensor resistance 10ºC or less 108kΩ or more 22ºC Approx 23k...

Страница 62: ... resistance between secondary side of transformer and case 100 MΩ or higher Insulation resistance between primary side and secondary side of transformer 100 MΩ or higher Check resistance of primary side of transformer Does measured resistance deviate significantly from values shown below YES NO Check resistance of secondary side of transformer Does measured resistance deviate significantly from va...

Страница 63: ... resistance and voltage DAMPER MOTOR NO YES YES Is measured value 0 Ω when limit switch turns on and infinity when it turns off Damper motor is normal Place tester probes at connectors of limit switch and check continuity while moving switch by hand Limit switch is faulty Damper motor is faulty HF017 NO Is measured value of EJ type approx 17 kΩ Place tester probes on connectors of damper motor and...

Страница 64: ...y Explanation 55 Part 8 Part 8 Part 8 Part 8 Supplementary Supplementary Supplementary Supplementary Explanation Explanation Explanation Explanation 1 Supplementary Explanation 56 1 1 Field Setting Service Mode Operation 56 ...

Страница 65: ...d setting mode Step 2 Mode No UP Mode No DOWN Use MODE and AIR VOLUME to select desired mode No Step 3 To setting heat reclaim ventilation units by group press button and select desired unit No Step 4 Press button to select desired setting switch No Step 5 Press button to select desired setting position No Step 6 Press button to enter settings Step 7 Press button to return to normal mode 4 3 6 1 7...

Страница 66: ...ith equipment in normal mode press the button for more than 4 seconds to enter field setting mode Step 2 Mode No UP Mode No DOWN Use MODE and AIR VOLUME to select mode No 00 30 Step 3 Press or button to select Group No Step 4 Press button once to enter settings Step 5 Press button to return to normal mode Field setting mode Mode No Group No 3 4 1 5 HL040 2 ...

Страница 67: ...d fan Mode No 43 Step 1 With equipment in field setting mode press the button for more than 4 seconds to enter service mode Step 2 Mode No UP Mode No DOWN Use MODE and AIR VOLUME to select mode No 43 Step 3 Use to select desired Unit No Step 4 Press button to return to normal mode Unit No 3 2 1 4 HL041 Mode No ...

Страница 68: ...o enter service mode Step 2 Mode No UP Mode No DOWN Use MODE and AIR VOLUME to select mode No 45 Step 3 Use to select setting Unit No Step 4 Press or button to select Unit No after reallocation Step 5 Press button once to enter settings Step 6 Press button to return to normal mode Unit No before reallocation Unit No after reallocation 3 4 1 6 5 4 2 HL042 Field setting mode Mode No ...

Страница 69: ...or data 41 Forced fan ON 43 Individual setting 44 Unit No reallocation 45 Step 1 To field setting mode Press for more than 4 sec Step 2 Mode No selection 1 Mode 00 30 Mode 40 49 Mode 50 59 Press for more than 4 sec Press for more than 4 sec Step 3 Mode No selection 2 Mode No UP Mode No DOWN Step 4 Switch No selection Switch No selection Step 5 Position selection Position selection Step 6 Position ...

Страница 70: ...CD LCD is equipped with a new function that graphically displays currently selected ventilation mode as shown below HL045 BRC301B61 Ventilation mode Auto Total heat exchange ventilation mode Normal ventilation mode Display OFF in automatic ventilation mode Ventilation mode Total heat exchange Ventilation mode Normal Normal ventilation mode Display can be turned off using field setting 19 29 7 HL04...

Страница 71: ...me Fresh up setting changes as follows Inspection Inspection operation is shown below With Freshup Low Low High High Low Freshup High Freshup Without Freshup Function modes change in sequence every time button is pressed HL051 Inspection indication flashes Normal screen Cyclic Unit 0 Error code 00 Inspection HL052 ...

Страница 72: ...et unit No using Procedure for entering individual settings mode No 44 The setting is generally the same for all units in the same group control system However the setting of selected units can be fixed by the following method Example 1 Press for more than 4 seconds 2 Set mode No to 44 using or 3 Set unit No using 4 Set ventilation mode using 5 Set ventilation volume using 6 Enter settings by pres...

Страница 73: ...Supplementary Explanation Si71 502 64 Supplementary Explanation Individual Settings Heat Reclaim Ventilation Unit Ventilation Volume Ventilation Mode As indicated by LCD As indicated by LCD ...

Страница 74: ...Part 9 Operation Manual Operation Manual Operation Manual Operation Manual 1 Safety Cautions 68 2 What to do Before Operation 71 3 Operation Procedure 78 4 Maintenance for a Qualified Service Person Only 85 5 Troubleshooting 90 6 After sales Service 93 ...

Страница 75: ...ION MANUAL Total Heat Exchanger HRV Heat Reclaim Ventilation MODELS Ceiling mounted duct type VAM 150GJVE VAM 250GJVE VAM 350GJVE VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM 1000GJVE VAM 1500GJVE VAM 2000GJVE EM03A029 0511 3P034927 5J FS HT ...

Страница 76: ...be sure to read this operation manual thoroughly If you have any problems or there is a malfunction please refer to this operation manual Please keep this manual for your future reference whenever you do not understand how to use it when something is wrong with the unit during the operation ...

Страница 77: ...fied service person to perform this work The qualified service person Caution During Opertaion Do not use the HRV unit for other purposes In order to avoid any quality deterioration do not use the unit for cooling precision instruments food plants animals or works of art Do not use burning appliances directly in the path of the air from the unit Incomplete combustion of the burning appliances may ...

Страница 78: ...e unit A foundation of in sufficient strongth may result in the unit falling and causing injuries Connect the remote controller to the correct model This may cause electric shock or fire Do not connect additional electric wirings This may cause fire Do not install the HRV unit at any place where flammable gas may leak out If the gas leaks out and stays around the unit a fire may break out Be sure ...

Страница 79: ...ctric shock short circuits or fire Arrange the drain hose to ensure smooth drainage Incomplete drainage may cause wetting of the building furniture etc Avoid placing the controller in a spot splashed with water Water coming inside the controller may cause an electric leak or may damage the internal electronic parts Never pull or twist the electric wire of a remote controller It may cause the unit ...

Страница 80: ...ntrol Before initiating operation contact your Daikin dealer for the operation that corresponds to your system type and mark If your installation has a customized control system ask your dealer for the operation that corresponds to your system 2 1 Names of Parts MODELS VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVE VAM800GJVE VAM1000GJVE fig 1 1 ...

Страница 81: ...ndoors with the air taken in from outdoors changes the outside air to the same condition as indoors and then brings it indoors Sometimes when first using the unit the smell of the heat exchanging element may be noticeable but it is not harmful The smell will gradually go away as the unit is used Important 17 SA Supply air Supply air to room 15 Maintenance space for the air filters the heat exchang...

Страница 82: ...uring operation 3 Display changeover under control May be displayed when combined with a VRV system air conditioner While the indication is shown the ON OFF of HRVs cannot be operated by the HRV remote controller It is impossible to changeover heat cool with the remote controller when this icon is displayed 4 Display air flow flap This displays the direction and mode of the air flow flap of the co...

Страница 83: ...mode 14 Timer mode start stop button Refer to the chapter Operation procedure Programming start and stop of the system with timer 3 2 15 Timer on off button Refer to the chapter Operation procedure Programming start and stop of the system with timer 3 2 16 Inspection test operation button Pressed during inspection or test run Do not use under usual use service person installer only 17 Programming ...

Страница 84: ...o item 11 30 Display operation standby It indicates the pre cooling pre heating operation This unit is at stop and will start operation after the pre cooling pre heating operation is over Pre cooling pre heating operation means the operation of HRVs is delayed during the startup operation of linked air conditioners such a before the office hours During this period the cooling or heating load is re...

Страница 85: ...g the remote controller You can also select the ventilation amount and the ventilation mode Sample system Combined operation system with VRV systems and Sky air series Operation The air conditioner remote controller starts and stops the air conditioner and the HRV unit You can also select the ventilation amount and the ventilation mode During intermediate periods when only the HRV unit is used wit...

Страница 86: ...er to the section 3 3 When the HRV remote controllers is connected operation can be started and stopped using the Cetralized controller or the indoor and the HRV remote controllers During the indication of centralized control appears on the display the ON OFF and timer operation may not be possible with the HRV remote controllers Other operations can be performed using the HRV remote controllers R...

Страница 87: ...lation mode button if you wish to change the mode The display rotates through the following selections every time the button is pressed Press ventilation fan speed button if you wish to change the fan speed The display rotates through the following selections every time the button is pressed In case of the remote controller BRC301B61 Remote controller for VRV BRC1C61 1 4 2 3 Remote controller for ...

Страница 88: ...aust The volume of room air exhausted outdoors is larger than that of outdoor air supplied into the room This operation prevents the hospital odor and floating bacteria from flowing out to the corridors Note This does not be changed with the button of the remote controller BRC1C61 Ask your dealer for the set up of FRESH UP EXPLANATION OF VENTILATION MODE Automatic mode When combined with a VRVII s...

Страница 89: ...C61 and as equivalent Display changes as below NOTE Current Ventilation mode can be visible and selected on the remote controller TEST hr TEST NOT AVAILABLE hr Operation mode display Ventilation is displayed Operation mode selector button Remote controller for indoor unit Operation mode VRV Cooling mode HRV Heat exchange mode VRV Fan mode HRV Heat exchange mode VRV Stopping HRV Heat exchange mode ...

Страница 90: ...ter ask a qualified service person to clean the filters Refer to the chapter Maintenance Operation mode VRV Cooling mode HRV Heat exchange mode VRV Fan mode HRV Heat exchange mode VRV Stopping HRV Heat exchange mode When air conditioner and HRV unit are not connected via duct Operation mode VRV Cooling mode HRV Heat exchange mode VRV Fan mode HRV Heat exchange mode When air conditioner and HRV uni...

Страница 91: ...stem starts operating after the set time has elapsed The start and the stop time can be simultaneously programmed Press the timer mode start stop button several times and select the mode on the display For setting the timer stop For setting the timer start Each time the button is pushed the indication changes as shown below Remote controller for VRV BRC1C61 1 3 2 Remote controller for HRV BRC301B6...

Страница 92: ...ration after a desired time Example Set the time to 8 will display Stops operation 8 hours after the reservation is complete The program will be cleared after the operation stops Set the stop time during operation When you want to start operation after a desired time has elapsed Example Set the time to 8 will display Starts operation 8 hours after the reservation is complete The reservation is can...

Страница 93: ... e Operating state of Total heat exchanger EXPLANATION OF NIGHTTIME FREE COOLING OPERATION IMAGE The unit compares the indoor and outdoor temperatures after the air conditioning operation stops for the night If the following conditions are satisfied the operation starts and when the indoor temperature reaches the air conditioning setting the operation stops Conditions 1 the indoor temperature is h...

Страница 94: ...requires working in high places Do not use benzene or thinner to clean the outside surfaces of the air conditioner This may cause cracks discoloration or machine trouble 4 1 How to Clean the Air Filter Clean the air filter when the display shows TIME TO CLEAN AIR FILTER It will display that it will operate for a set amount of time CLEANING FREQUENCY AT LEAST ONCE EVERY YEARS FOR GENERAL OFFICE USE...

Страница 95: ...n the air filter is very dirty use soft brush and neutral detergent After cleaning remove water and dry in the shade Note Do not wash the air filter with hot water of more than 50 C as doing so may result in discoloration and or deformation Do not expose the air filter to fire as doing so may result in burning Do not use gasoline thinner or other organic solvents This may cause discoloration or de...

Страница 96: ... or on discharge grill or around air supply opening Keep the indoor unit and the remote controller at least 1 m away from televisions radios stereos and other similar equipments This may cause distorted picture or noise Turn off the main power supply switch when it is not used for long periods of time When the main power switch is turned on some watts of electricity is being used even if the syste...

Страница 97: ...danger 1 Detach the maintenance cover Refer to the section 4 1 1 2 Detach the air filter Refer to the section 4 1 2 3 Take out the heat exchange elements Pull out the air filter and then pull out the two heat exchanger elements 4 Use a vacuum cleaner to remove dust and foreign objects on the surface of the heat exchange element Use the vacuum cleaner equipped with a brush on the tip of the suction...

Страница 98: ...nstall the maintenance cover securely in place Refer to the section 4 1 5 Caution Always use the air filter If the air filter is not used heat exchange elements will be clogged possibly causing poor performance and subsequent failure 4 4 Inspection of the Fan Moter Note When the fan motor fails the remote controller does not display any error code Usage under that status will lead to insufficient ...

Страница 99: ...urned on and disappears after several seconds Cause This indicates that the unit is checking whether or not the remote controller is normal It is only displayed temporarily 5 2 If One of the Following Malfunctions Occurs Take the Measures Shown Below and Contact Your Daikin Dealer The system must be repaired by a qualified service person DO NOT CHECK AND REPAIR OPENING INSIDE THE UNIT BY YOURSELF ...

Страница 100: ...ck if the fuse has blown or breaker has worked Change the fuse or set the breaker 2 Amount of discharged air is small and the discharging sound is high Check if the air filter and heat exchange element are clogged Clean tha air filter and heat exchange element 3 Amount of discharged air is large and so is the sound Check if the air filter and heat exchange element are not installed Install the air...

Страница 101: ...ce person Do not check by yourself The unit does not operate at all a Check if there is a power failure After power has been restored start operation again b Check if the fuse has blown Change the fuse c Check if breaker has worked Contact your dealer d Are there any problems with the power or wiring Inspect the power and wiring e Are there any problems with the fan unit Inspect the fan motor and ...

Страница 102: ...mum storage period of important parts Even after a certain type of the HRV unit is discontinued we have the related important parts in stock for 6 years at least The important parts indicate parts essential to operate the HRV unit Recommendations for maintenance and inspection Since dust collects after using the unit for several years the performance will be deteriorated to some extent Taking apar...

Страница 103: ...After sales Service Si71 502 94 Operation Manual ...

Страница 104: ...Si71 502 Appendix 95 Part 10 Part 10 Part 10 Part 10 Appendix Appendix Appendix Appendix 1 Appendix 96 1 1 Wiring Diagram 96 ...

Страница 105: ...Appendix Si71 502 96 Appendix 1 Appendix 1 1 Wiring Diagram VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVE VAM800GJVE VAM1000GJVE ...

Страница 106: ...Si71 502 Appendix Appendix 97 VAM1500GJVE VAM2000GJVE ...

Страница 107: ...Appendix Si71 502 98 Appendix ...

Страница 108: ...r 45 Dedicated LCD Remote Controller 43 50 Dedicated Remote Controller 43 Direct duct connection with air conditioner 23 Display OFF in automatic ventilation mode 61 Duct Connection Flange 2 3 E EEPROM 33 Error Code 60 37 38 Error Code 64 39 Error Code 65 40 Error Code 6A 41 42 Error Code Indication 36 Error Code U5 44 45 Error Code U8 46 Error Code UA 47 Error Code UC 48 Error record display 60 E...

Страница 109: ...unction 22 Power supply circuit 33 Power Transformer 53 Power transformer 33 Pre cool pre heat function 22 Pre cool pre heat operations 24 Printed Circuit Board 29 Procedure for entering individual settings mode No 44 63 Product Specification 6 R Relay drive circuit 33 Remote control data transmission interface 33 Remote Controller 2 3 Remote Controller for HRV BRC301B61 11 Remote Controller for V...

Страница 110: ...operation 23 External Damper Operation Essential Setting Changes 28 Essential Wiring 28 Explanation of Functions 28 F Field Setting 60 Function of main connection terminal 30 G General Constructions VAM1000GJVE 2 VAM1500GJVE 3 VAM150GJVE 2 VAM2000GJVE 3 VAM250GJVE 2 VAM350GJVE 2 VAM500GJVE 2 VAM650GJVE 2 VAM800GJVE 2 H HOW TO OPERATE WITH TIMER 12 I Initial setting mode Nos 17 27 18 28 56 Inspecti...

Страница 111: ...e changeover 12 Ventilation volume Fresh up setting changes 62 W When 88 remains on remote controller display 43 When no indication is displayed on remote controller 50 Wiring Diagram VAM1500GJVE VAM2000GJVE 97 VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVE VAM800GJVE VAM1000GJVE 96 ...

Страница 112: ...choose an outdoor unit with anti corrosion treatment Cautions on product corrosion Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor t...

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