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Troubleshooting

Si71-502

Troubleshooting

1.7

Damper System Error (Alarm)

Remote Controller
LCD Display

Error Code

Inspection Blinking Unit No. Blinking

LED Indication

Remote Controller

Main Unit

Error Detection
Method

Measurement of damper motor limit switch ON/OFF time and temperatures detected by outdoor and indoor
air thermistor.

Error Generating
Conditions

When damper system error (alarm) and indoor (or outdoor) thermistor error are generated at the same
time.

When damper system error (alarm) occurs and values of indoor and outdoor air thermistor meet frost
conditions.

Possible Causes

Faulty 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

Take corrective measures
specified for damper system
error (alarm).
(Remove the cause of problem,
and reset display.)

Take corrective measures
specified for damper system
error (alarm) and indoor and
outdoor air thermistor errors.

Take corrective measures
specified for damper system
error (alarm) and outdoor air
thermistor error.

Take corrective measures
specified for damper system
error (alarm) and indoor and
outdoor air thermistor error.

Are

"6A" and "64"

or "65" recorded?

(HF006)

Are

"64" and "65"

recorded?

Содержание VAM 350GJVE

Страница 1: ...hoose 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 in...

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 VAM15...

Страница 3: ...zed 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 Funct...

Страница 4: ...ined 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 Filte...

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: ...ed 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 whic...

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

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

Страница 9: ...ble 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 lo...

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 Exhau...

Страница 12: ...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 Main...

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: ...Low 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 Dimensi...

Страница 16: ...64 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...

Страница 17: ...70 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 83...

Страница 18: ...lanation 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...

Страница 19: ...s 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 Sy...

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 in...

Страница 21: ...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 contr...

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...

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 indic...

Страница 24: ...71 502 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 1...

Страница 25: ...re 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 th...

Страница 26: ...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 Whe...

Страница 27: ...o 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 a...

Страница 28: ...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...

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

Страница 30: ...t 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...

Страница 31: ...r 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...

Страница 32: ...r 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 OF...

Страница 33: ...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 condit...

Страница 34: ...multaneous 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 di...

Страница 35: ...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 setti...

Страница 36: ...n 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 avail...

Страница 37: ...onnect 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 on...

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...

Страница 39: ...ntroller 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 Be...

Страница 40: ...02 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 Functi...

Страница 41: ...motor relay Central data transmission interface circuit Remote control signal transmission interface circuit Relay drive circuit Microcomputer oscillation circuit Microcomputer reset circuit Control...

Страница 42: ...lay 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...

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

Страница 44: ...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...

Страница 45: ...ng 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 be...

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...

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 sett...

Страница 48: ...ce conversion table when measuring resistance Thermistor temperature resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check res...

Страница 49: ...nce conversion table when measuring resistance Thermistor temperature resistance conversion table If measured value deviates significantly from above values thermistor is faulty Use tester to check re...

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 te...

Страница 51: ...amper 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 T...

Страница 52: ...B 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 r...

Страница 53: ...t 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 ass...

Страница 54: ...n 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 p...

Страница 55: ...nditions 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 sel...

Страница 56: ...r 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...

Страница 57: ...ote 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 Fau...

Страница 58: ...es 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...

Страница 59: ...ster check continuity between two wires in cable Is measured value M infinity NO YES With remote controller cable disconnected from main unit PCB check voltage between P1 and P2 on main unit terminal...

Страница 60: ...r 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...

Страница 61: ...thermistor 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 measur...

Страница 62: ...esistance between secondary side of transformer and case 100 M or higher Insulation resistance between primary side and secondary side of transformer 100 M or higher Check resistance of primary side o...

Страница 63: ...resistance and voltage DAMPER MOTOR NO YES YES Is measured value 0 when limit switch turns on and infinity when it turns off Damper motor is normal Place tester probes at connectors of limit switch a...

Страница 64: ...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 Ser...

Страница 65: ...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...

Страница 66: ...th 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 t...

Страница 67: ...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 S...

Страница 68: ...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...

Страница 69: ...r 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 mo...

Страница 70: ...D 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 ven...

Страница 71: ...e 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 tim...

Страница 72: ...t 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 fixe...

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: ...art 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 On...

Страница 75: ...ON 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 2000G...

Страница 76: ...e 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...

Страница 77: ...ied 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...

Страница 78: ...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...

Страница 79: ...tric 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 w...

Страница 80: ...trol 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...

Страница 81: ...doors 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 eleme...

Страница 82: ...ring 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...

Страница 83: ...ode 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 Pro...

Страница 84: ...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 p...

Страница 85: ...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 rem...

Страница 86: ...r 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 indicatio...

Страница 87: ...ation 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...

Страница 88: ...ust 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 corridor...

Страница 89: ...61 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 dis...

Страница 90: ...er 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...

Страница 91: ...tem 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...

Страница 92: ...ation 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 duri...

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...

Страница 94: ...equires 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...

Страница 95: ...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 res...

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 distorte...

Страница 97: ...anger 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 t...

Страница 98: ...stall 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 pe...

Страница 99: ...rned 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...

Страница 100: ...k 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...

Страница 101: ...e 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...

Страница 102: ...um 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 esse...

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: ...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...

Страница 109: ...nction 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 set...

Страница 110: ...peration 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 VA...

Страница 111: ...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 VAM20...

Страница 112: ...hoose 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 in...

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