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Service Manual

Table of Contents

Part

: Technical Information

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1. Summary

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. Removal Procedure

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.1 Removal Procedure of Indoor Unit

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.2 Removal Procedure of Outdoor Unit

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. Troubleshooting

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.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement

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.2 Procedure of Troubleshooting

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.3 Troubleshooting for Normal Malfunction

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Содержание OTEC ICHQ Series

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Страница 2: ...al Information 1 1 Summary 1 Removal Procedure 1 Removal Procedure of Indoor Unit 2 Removal Procedure of Outdoor Unit Troubleshooting 1 Flashing LED of Indoor Outdoor Unit and Primary Judgement 2 Procedure of Troubleshooting 3 Troubleshooting for Normal Malfunction ...

Страница 3: ...1 Technical Information Service Manual 1 Summary Part Technical Information Indoor Unit Outdoor Unit Remote Controller ...

Страница 4: ...35 Installation and Maintenance Service Manual Troubleshooting 1 Flashing LED of Indoor Outdoor Unit and Primary Judgement ...

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Страница 9: ...tion for evaporator E2 Not the error code It s the status code for the operation 50 Cold air prevention protection E9 Not the error code It s the status code for the operation 51 Refrigerant recovery mode Fo Refrigerant recovery The Serviceman operates it for maintenance ...

Страница 10: ...en indoor unit and detection 53 Defrosting Heating indicator off for 0 5s and then blinks for 10s Not the error code It s the status code for the operation 54 outdoor unit error oE Cool compressor and outdoor fan stops operation while indoor compressor outdoor fan and indoor fan stop operation 1 Outdoor ambient temperature exceeds the operation range of unit eg less than 20oC or more than 2 Failur...

Страница 11: ...on the controller and if damage of lead wire is found 5 Compressor over load protection 6 System malfun ction Overload protection When tube temperature Check the temperature of outdoor heat exchanger when cooling and check the temperature of indoor heat exchanger when heating is too high protection will beactivated Please refer to the malfunction analysis in the previous section for handling metho...

Страница 12: ...the temperature sensor and the controller Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes Yes No No No No No No Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace it with a temperature sensor with the same model Make the parts upright Is there short circuit due to trip over of the parts Is the temperature sensor normal Replace the mainboard with t...

Страница 13: ...44 Installation and Maintenance Service Manual 2 Malfunction of Blocked Protection of IDU Fan Motor H6 ...

Страница 14: ...tart Is the jumper cap inserted correctly Replace the jumper cap with the same model Appearance of the jumper cap Assemble the jumper cap with the same model Insert the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainboard with the same model End Yes Yes Yes Yes Yes No No No No No ...

Страница 15: ...46 Installation and Maintenance Service Manual 4 Malfunction of detecting plate WIFI JF ...

Страница 16: ...47 Installation and Maintenance Service Manual 5 Communication malfunction E6 ...

Страница 17: ...48 Installation and Maintenance Service Manual Outdoot Unit ...

Страница 18: ...49 Installation and Maintenance Service Manual 2 IPM protection phase current overcurrent the control board as below indicates the control board of outdoor unit H5 P5 ...

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Страница 25: ...56 Installation and Maintenance Service Manual 9 High pressure Protection ...

Страница 26: ... point 5 of maintenance method for details 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power plug After energization operation indicator isnt bright and the buzzer Can t give...

Страница 27: ...in pipe is broken Water leaking from drain pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Can t Operate Possible causes Discriminating method air conditioner status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires acc...

Страница 28: ...63 Installation and Maintenance Service Manual Removal Procedure Caution discharge the refrigerant completely before removal 1 Removal Procedure of Indoor Unit ...

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Страница 37: ...72 Installation and Maintenance Service Manual 2 Removal Procedure of Outdoor Unit ...

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Страница 42: ... 15 82 83 82 4 28 37 38 37 4 3 61 62 60 8 16 84 85 84 2 29 39 40 39 2 4 63 62 6 17 86 87 86 30 41 42 41 5 64 65 64 4 18 88 89 87 8 31 43 44 42 8 6 66 67 66 2 19 90 89 6 32 45 44 6 7 68 69 68 20 91 92 91 4 33 46 47 46 4 8 70 71 69 8 21 93 94 93 2 34 48 49 48 2 9 72 71 6 22 95 96 95 35 50 51 50 10 73 74 73 4 23 97 98 96 8 36 52 53 51 8 11 75 76 75 2 24 99 98 6 37 54 53 6 12 77 78 77 25 Fahrenheit di...

Страница 43: ...e main cause of refrigerant leakage Please expand the pipe according to the following steps A Cut the pip B Remove the burrs C Put on suitable insulating pipe D Put on the union nut the union nut on the pipe E Expand the port Outer diameter mm A mm Max Min 1 3 0 7 1 6 1 0 1 8 1 0 2 4 2 2 Appendix 3 Pipe Expanding Method Note Note ...

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