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Multi Variable Air Conditioners Compact Cassette Type Indoor Unit

6.3 Maintenance after the Seasonal Use

(1) Set the unit in fan mode for half a day in a sunny day to dry the inner part of unit.
(2) When the unit won’t be used for a long time, please cut off power supply for energy saving;

the characters on the wired controller screen will disappear after cutting off the power
supply.

7 Table of Error Codes for Indoor Unit

Error

Code

Content

Error

Code

Content

Error

Code

Content

Indoor Unit Error

Indoor Units Incompatibility

Error

Jumper Cap Error

Indoor Fan Protection

Low Air Quanlity Warning

Indoor Unit Network

Address Error

E-heater Protection

ODU-IDU Incompatibility

Error

Wired Controller PCB

Error

Water Full Protection

Indoor Unit PCB Error

Capacity DIP Switch

Setting Error.

Wired Controller Power

Supply Error

Ambient Temperature

Sensor Error

Indoor Unit CO

Sensor

Error

Freeze Protection

Inlet Pipe Temperature

Sensor Error

Capacity DIP Switch

Setting Error.

No Master Indoor Unit

Error

Outlet Pipe Temperature

Sensor Error

Special Code: Field

Debugging Code

Power Insufficiency

Protection

Humidity Sensor Error

Communication Error

Quantity Of Group Control

Indoor Units Setting Error

Water Temperature Sensor

Error

Filter Cleaning Reminder

Low Bus bar Voltage of

Indoor Unit

High Bus bar Voltage of

Indoor Unit

IPM Module Protection of

Indoor Unit

Failure Startup of Indoor

Unit

Overcurrent Protection of

Indoor Unit

Current Detection Circuit

Malfunction of Indoor

Unit

Desynchronizing

Protection of Indoor Unit

Communication

Malfunction of Indoor Unit’s

Drive

Communication

Malfunction of Main

Mater of Indoor Unit

High Temperature of

Indoor Unit’s Module

Malfunction of

Temperature Sensor of

Indoor Unit’s Module

Charging Circuit

Malfunction of Indoor

Unit

Other Drive Malfunction

Special Code: Field Debugging Code

Содержание GMV-ND05T/E-T

Страница 1: ...riginal Instructions Commercial Air Conditioners Multi Variable Air Conditioners Compact Cassette Type Indoor Unit Models GMV ND05T E T U GMV ND07T E T U GMV ND09T E T U GMV ND12T E T U GMV ND15T E T U GMV ND18T E T U ...

Страница 2: ...ate normally please contact our service center as soon as possible and provide the following information 1 Content on the nameplate model number cooling capacity production code ex factory date 2 Malfunction details before and after the malfunction occurs 7 Each unit has been strictly tested and proved to be qualified before ex factory In order to prevent units from being damaged or operating norm...

Страница 3: ...cturer 3 After verification the defect of product is directly caused by corrosive gas 4 After verification defects are due to improper operation during transportation of product 5 Operate repair maintain the unit without abiding by instruction manual or related regulations 6 After verification the problem or dispute is caused by the quality specification or performance of parts and components that...

Страница 4: ... Testing 9 4 4 Locking Joint Installation 13 4 5 Panel Installation 14 4 6 Installation of Wired Controller 16 5 Wiring Work 16 5 1 Connection of Wire and Patch Board Terminal 16 5 2 Power Cord Connection 17 5 3 Connection of Communication Wire between Indoor Unit and Outdoor Unit or Indoor Unit 18 5 4 Connect Communication Wire of Wired Controller 18 5 5 Illuminate for Connection of Wired Control...

Страница 5: ...erate normally 13 When installation is finished please check whether the drainage pipes pipelines and electric wires are connected correctly to avoid water leakage refrigerant leakage electric shock or fire etc 14 Do not insert fingers or objects into air outlet or air return grille 15 Open the door and window frequently to keep good ventilation for avoiding oxygen deficit when gas heater or oil h...

Страница 6: ...roduct Introduction 2 1 Names of Key Components Fig 2 1 1 No 1 2 3 4 Name Drainage device Drainage Pipe Air flow flap Connection Pipe 2 2 Rated Working Condition Indoor Side Condition Outdoor Side Condition Dry Bulb Temp C F Wet Bulb Temp C F Dry Bulb Temp C F Wet Bulb Temp C F Rated Cooling 26 7 80 19 4 67 35 95 24 75 Rated Heating 21 1 70 15 6 60 8 3 47 7 1 45 3 Preparations for Installation Pro...

Страница 7: ...m falling off 12 Fastener 200mm 4 To fasten the sponge 13 Bolt with Washer 4 To fix the installation paperboard on the unit 14 Enswathement 2 Used for winding the pipe connecting the indoor and outdoor units 15 Washer 10 To be used together with the hanger bolt for installing the unit 3 2 Installation Position Selection 1 The location should be able to withstand the weight of unit 2 The water can ...

Страница 8: ...nit shall be installed in accordance with national standards or local regulations 2 Only qualified personnel can carry out installation work please contact with local dealer before installation 3 Make sure all the installation work completed before energizing 3 3 Requirements for Communication Line If air conditioner used under strong electronic magnetic interference circumstance STP shielded twis...

Страница 9: ...t and Indoor Unit or Outdoor Unit Fig 3 3 2 Material Type Total Length L m ft of Communication Cable between Indoor Unit and Indoor Outdoor Wire size mm2 AWG Material standard Remarks Light Ordinary polyvinyl chloride sheathed cord 60227 IEC 52 60227 IEC 53 L 1000 L 3280 13 16 2 0 75 2 AWG18 IEC 60227 5 1 If the wire diameter is enlarged to 2 1 mm 2 AWG16 the total communication line length can re...

Страница 10: ...eaker specification in above sheet is based on ambient temperature of 40 C 104 F If the working condition is different please adjust it according to the specification sheet of circuit breaker 4 Installation Instructions 4 1 Installation of Indoor Unit 4 1 1 Ceiling opening Dimension and suspension bolt position Fig 4 1 1 Unit mm inch Model A B C D E F G GMV ND05T E T U GMV ND07T E T U GMV ND09T E ...

Страница 11: ... temporarily Assemble suspension bolt on the expansion bolt attach the hanger bracket to the suspension bolt Be sure to fix it securely by using a nut and washer from upper and lower sides of the hanger bracket The washer fixing plate will prevent the washer from falling 3 The usage of paper pattern Refer to paper pattern of installation for ceiling opening dimension The center of ceiling opening ...

Страница 12: ... screwed joint and then tighten the flaring nut with hand as shown in Fig 4 2 1 2 Use a torque wrench to tighten up the flaring nut until the wrench gives out a click sound Fig 4 2 1 Pipe diameter mm inch Torque N m 6 35 1 4 15 30 9 52 3 8 35 40 12 7 1 2 45 50 15 9 5 8 60 65 3 The pipe should not be bent too much or it may crack Use a pipe bender when bending the ...

Страница 13: ...the following Fig 4 3 1 and arrange insulation to the drainage pipe Improper installation may lead to water leakage and damp the furniture and other things in the room 7 You can buy normal hard PVC pipe used as the drainage pipe During connection insert the end of PVC pipe into the drainage hole and then tighten it with drainage hole and wire binder Can t connect the drainage hole and drainage hol...

Страница 14: ...nected to vertical pipe in the same level please select the connection way as shown in following figure 1 Three way connection of drainage pipe joints Fig 4 3 3 2 Connection of downspout elbow Fig 4 3 4 3 Inserting horizontal pipe connection Fig 4 3 5 Fig 4 3 3 Fig 4 3 4 Fig 4 3 5 9 Drain pipes should have a downward slope of at least 1 2 in order to prevent pipes from sagging install hanger brack...

Страница 15: ... Model A B C GMV ND05T E T U GMV ND07T E T U GMV ND09T E T U GMV ND12T E T U GMV ND15T E T U GMV ND18T E T U 225 8 7 8 975 38 3 8 925 36 7 16 11 During the installation distance from soft drain pipe to the gasket is C when the bolt is tightened It is not allowed to apply PVC or other related glue in the joints of two ends of drain pipe Fig 4 3 8 Unit mm inch Model C GMV ND05T E T U GMV ND07T E T U...

Страница 16: ...mp etc 2 In case of commissioning finished please energize the IDUs and switch to cooling or dry mode meanwhile the water pump operates you can check the draining through the drain socket 3 If communication wire is not connected communication malfunction C0 will occur after 60s of energizing In this case the water pump operates automatically Check if the water pump drains normally through drainage...

Страница 17: ...eed to be fixed through the side panel locking connector The fixing process is as follows 1 Remove the locking joint bracket from the side panel Fig 4 4 1 2 Attach the locking joint to the locking joint bracket Fig 4 4 2 3 Power cable communication line passes through the locking joint and the side plate engineering line over the wire crossing hole 4 Finally reattach the locking joint bracket to t...

Страница 18: ...tion 1 Improper decorative panel installation could cause the following problems Fig 4 5 1 2 Ensure that it s clearance free between decoration panels and ceiling board after installation if not please adjust the body position Fig 4 5 2 3 Connect the decoration panel terminals Female to body terminals Male as shown in Fig 4 5 3 ...

Страница 19: ... keep the mark and fittings on the same corner as shown in Fig 4 5 4 Fig 4 5 4 2 Adjust the position of panel to make the panel holes fix at the holes on the units 3 Fix the 4 screws at the two side of panel as shown in Fig 4 5 5 Fig 4 5 5 4 Detach the air inlet grille from panel make a wiring connection of signal receiver Notices that the connection wire not stuck in the middle of body and panel ...

Страница 20: ...ly read the wiring diagram before carry out the wiring work incorrect wiring could cause malfunction or even damage the unit 3 The unit should be powered by independent circuit and specific socket 4 The wiring should be in accordance with related regulations in order to ensure the units reliable running 5 Install circuit breaker for branch circuit according to related regulations and electrical st...

Страница 21: ... terminal board 3 Insert the wire into the ring tongue terminal and tighten by crimping tool 4 Use the screwdriver for tightening the terminal Unit mm inch Fig 5 1 1 Fig 5 1 2 5 2 Power Cord Connection Every unit should be equipped with a circuit breaker for short circuit and overload protection In general circuit breaker is at OFF status During operation all indoor units and outdoor units belongi...

Страница 22: ...s shown in Fig 5 3 1 Fig 5 3 1 Fig 5 3 2 4 Fix the communication cable with clamp of electric box 5 For more reliable communication make sure connect the terminal resistor to the most downstream IDU of the communication bus terminal D1 and D2 as shown in Fig 5 3 2 terminal resistor is provided with each ODU 5 4 Connect Communication Wire of Wired Controller 1 Open electric box cover of indoor unit...

Страница 23: ...D2 2 Wired controller is connected to H1 H2 3 One indoor unit can connect two wired controllers that must be set as master one and slave one 4 One wired controller can control 16 indoor units in maximum at the same time as shown in Fig 5 5 1 1 The type of indoor units must be the same if they are controlled by the same wired controller 2 When the indoor unit is controlled by two wired controllers ...

Страница 24: ...loth dipped in neutral detergent 6 Please contact after sales service staff if there is abnormal situation 6 1 Cleaning of Filter 1 Remove the filters from inlet of IDU Use a vacuum cleaner to remove dust If the filters are dirty wash them with warm water and mild detergent and dry the filters in the shade 2 If the unit used in the environment with much dust please clean it regularly Usually once ...

Страница 25: ...erature Sensor Error dL Indoor Unit CO2 Sensor Error L5 Freeze Protection d4 Inlet Pipe Temperature Sensor Error dE Capacity DIP Switch Setting Error L7 No Master Indoor Unit Error d6 Outlet Pipe Temperature Sensor Error db Special Code Field Debugging Code L8 Power Insufficiency Protection d7 Humidity Sensor Error C0 Communication Error L9 Quantity Of Group Control Indoor Units Setting Error d8 W...

Страница 26: ...nt temperature is higher than 43 109 Poor cooling effect The filter is dirty or blocked Too heavy heat load of room e g too many people Door or windows is open Air inlet and outlet of IDU are blocked Set temperature is too high or refrigerant leaks The performance of room temperature sensor gets worse Poor heating effect The filter is dirty or blocked Door or window is open Set temperature is too ...

Страница 27: ...23 ...

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