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Multi Variable Air Conditioners Ducted Type Indoor Unit

9 Troubleshooting

The air conditioner is not expected to be serviced by users. Incorrect repair may cause

electric shock or fire, so please contact an authorized service center for professional service. The
following checks prior to contact may save your time and money.

Phenomenon

Troubleshooting

The unit can’t start

①

Power supply is not connected.

②

Circuit breaker tripping caused by leakage of electricity.

③

Input voltage is too low.

④

Defect of main PC-board.

The unit stops after running

for a while.

①

The inlet or outlet of ODU or IDU are blocked by obstacle.

Poor cooling

①

The filter is dirty.

②

Too heavy

heat load of room(e.g. too many

people in the room)

③

Door

or windows

are

open.

④

Inlet and outlet of IDU are blocked.

⑤

emperature is

set

too high.

⑥

Refrigerant is

low

(e.g. refrigerant leakage)

Poor heating

①

The filter is dirty.

②

Door

or window

are

open.

③

emperature

set t

oo low.

④

Refrigerant is

low

(e.g. refrigerant leakage)

Indoor fan doesn’t start

up during heating

①

At start

, the IDU fan

will

not operate

til the heat exchange

r (indoor coil)

become

hot,

prevent

cold air delivery.

②

In Defrost

, the IDU fan stop

s because the system temporarily switches to

the cooling mode, this prevents cold air deliverey

the fan will r

esume

operating after

defrosting.

NOTICE!

the

air conditioner still fails to work normally after checking and handling as described

above, please stop using it immediately and contact

a licensed HVAC technician

for assistance.

Содержание DUCT09HP230V1BD

Страница 1: ...mercial air conditioners Please read this Owner s Manual carefully before operation and retain it for future reference For more information please contact your local distributor or visit www greecomfort com for the electronic version or send an email to info twclimate com DUCT09HP230V1BD DUCT12HP230V1BD DUCT18HP230V1BD DUCT24HP230V1BD ...

Страница 2: ...capacity the indoor capacities will be reduced 5 Keep this manual in a convenient place for use by a licensed HVAC technician 6 If this unit fails to operate normally please contact a licensed HVAC technician for service Technicians can call our Customer Care line at 800 850 7928 and ask for Technical Support by providing the following information 1 Tell the operator they are a licensed HVAC techn...

Страница 3: ...on 8 4 3 Drainage Pipe Installation and Drainage System Testing 9 4 4 Installation of Air Duct 12 4 5 Installation of Wired Controller 15 5 Wiring Work 15 5 1 Connection of Wire and Patch Board Terminal 15 5 2Power Cord Connection 16 5 3 Connect Communication Wire of Wired Controller 17 6 Setting of External Static Pressure 18 7 Routine Maintenance 18 7 1 Cleaning of Filter 18 7 2 Maintenance befo...

Страница 4: ...4 Make sure the unit is turned off and the supply power is disconnected prior to cleaning the unit to prevent electrical shock or injury 15 Never spray or flush the indoor or outdoor unit with water electrical shock or equipment damage may occur 16 Do not install this equipment in moist or corrosive environments 17 In cooling the temperature difference between the indoor and outdoor unit must be w...

Страница 5: ...nsed HVAC technician for service Operating the system under these adverse conditions may result in irreparable damage or personal injury Any personal injury or property loss caused by improper installation improper debugging unnecessary or improper repair servicing or not following the instructions in this manual is not the responsibility of Gree Electric Appliances Inc of Zhuhai ...

Страница 6: ...o actual products Unspecified unit of measure is mm in 3 1 Standard Fittings Please use the supplied standard fittings listed below as instructed No Name Appearance Q ty Usage 1 Wired Controller 1 To control the indoor unit 2 Drain Hose Assembly 1 To connect with the hard PVC drain pipe 3 Special Nut 1 To be used for connecting the refrigerant pipe 4 M10X8 Nut with Washer 4 To be used together wit...

Страница 7: ...ched to must be strong enough to support units weight 3 The condensate drain pipe must be properly sized sloped to ensure proper drainage 4 Remove all obstacles at inlet or outlet to ensure good air circulation 5 Observe all dimensions below to ensure there s enough room for maintenance 6 Keep the unit away from any heating source inflammable gas or smoke 7 This is a concealed ceiling type unit 8 ...

Страница 8: ...pply power wiring is more than 15m 49 1 4 ft long resize appropriately to avoid overloading the circuit 3 Above selection requirements Power cord size is based on BV single core 2 4 wire at 40 C 104 F ambient temperature when laying across plastic pipe Breaker is D type and used at 40 C 104 F If actual installation condition varies please lower the capacity appropriately according to the specifica...

Страница 9: ...r lifting the unit For the convenience of maintenance the service port should be on one side of the electric box and below unit s lower level Fig 4 1 1 Below are dimensions of A B C etc for different models Unit mm in Model A B C D E F G 740 29 1 8 500 19 11 16 830 32 11 16 300 11 13 16 754 29 11 16 700 27 9 16 700 27 9 16 1040 40 15 16 500 19 11 16 1130 44 1 2 300 11 13 16 754 29 11 16 1000 39 3 ...

Страница 10: ...n Fig 4 1 3 Fig 4 1 4 2 Insert the M10 expansion bolt into the hole and then knock the nail into the bolt as shown in fig 4 1 5 and then remove the paper pattern NOTICE The length of bolt depends on the installation height of the unit bolts are field supplied Fig 4 1 5 2 Install the indoor unit temporarily Assemble suspension bolt on the expansion bolt attach the hanger bracket to the suspension b...

Страница 11: ...evel Once installed remember to check to see that the whole unit is properly positioned It should be horizontal from front to back and slanted 1 from left to right in the directon of drainage Fig 4 1 8 5 Remove the washer locating plate and then tighten the nut on it 4 2 Refrigerant Pipe Connection 1 Guide the flaring port of copper pipe to the center of screwed joint and then tighten the flaring ...

Страница 12: ...nd of PVC pipe into the drain hole and secure it Do not use glue PVC cement 5 When several unit s drain lines are connected position the drain line about 100mm 4in lower than the drainage port of each unit Use heavier duty drain line if needed Fig 4 3 1 4 3 2 Drain Line installation 1 Insert the drain hose into the drain hole and secure it with tape as shown in Fig 4 3 2 2 Tighten the pipe clamp w...

Страница 13: ...ect the connection way as shown in following fig NO1 Connection of drainage pipe joints Fig4 3 6 NO2 Connection of downspout elbow Fig4 3 7 NO3 Inserting pipe connection Fig4 3 8 Fig 4 3 6 Fig 4 3 7 Fig 4 3 8 9 The installation height of raising pipe for drainage should be less than B The gradient from raising pipe towards drainage direction should be at least 1 2 If the raising pipe is vertical w...

Страница 14: ...n commissioning is finished energize the IDU s and switch to cooling or dry mode the water pump will operate check the transparent portion of the drain socket to make sure the unit is draining properly 3 If the communication wire is not connected communication malfunction E6 will occur after 3 min of energizing In this case the water pump operates automatically Make sure the water pump drains norm...

Страница 15: ...rn and fresh air ducts should be insulated to avoid heat loss and prevent condensation Use generally accepted practices and insulate appropriately for the area of the country you are in Each supply return and fresh air duct should be secured to ensure quiet operation The design and construction of air duct should comply with local codes and regulations Keep the edge of air return duct more than 15...

Страница 16: ...Air Supply Outlet Fig 4 4 2 Return Air Opening Model Size of Supply Air Outlet Size of Return Air Opening A B C D E F 195 7 5 8 451 17 3 4 25 1 264 10 3 8 660 26 29 1 1 8 195 7 5 8 751 29 9 16 25 1 264 10 3 8 960 37 3 4 29 1 1 8 DUCT09HP230V1BD DUCT12HP230V1BD DUCT18HP230V1BD DUCT24HP230V1BD 4 4 2 Installation of Supply Duct Fig 4 4 5 ...

Страница 17: ...uct to the return air outlet of the unit with rivets and the other to the return air louver Use reinforced canvas duct for easy adjustment of duct 4 More noise is likely to be produced in the bottom return air mode than the rear return air mode install a silencer and a static pressure box to minimize the noise 5 Choose the best installation method by considering the building conditions and accessi...

Страница 18: ...or proper operation and to prevent electrical shock 2 Read the wiring diagram carefully before wiring incorrect wiring could cause improper operation or unit damage 3 The unit should be powered by an independent circuit and breaker disconnect 4 All wiring should be in accordance with local codes and regulations to ensure proper operation and safety 5 Install circuit breakers for branch circuits ac...

Страница 19: ...ol 2 Loosen the screws on terminal board 3 Insert the wire into the ring tongue terminal and tighten by crimping tool 4 Use a screwdriver for tightening terminals Unit mm in Fig 5 1 1 Fig 5 1 2 5 2 Power Cord Connection NOTICE Every unit should be equipped with a circuit breaker for short circuit and overload protection For the system to work properly all indoor units connected to the same outdoor...

Страница 20: ... with a wire tie 4 The power supply wire size can t be smaller than 18 AWG 5 3 Wiring of the Signal Line of the Wired Controller 1 Open the cover of the electrical box of the indoor unit 2 Feed the communication wire go through the rubber grommet 3 Insert the communication wire into the four pin socket on the printed circuit board of the indoor unit 4 Secure the signal line with a wire tie ...

Страница 21: ...t the main power supply when cleaning the air conditioner to avoid electric shock or injury 2 To clean equipment use a safe ladder and follow all precautions spotter 3 Do not clean the unit with hot water higher than 112 F to prevent fading or deformation 4 Do not use excessive heat when cleaning filters filters will be deformed or damaged 5 Clean the filter with a wet cloth dipped in neutral dete...

Страница 22: ...ow refrigerant protection and refrigerant collecting mode 4 E4 Compressor high discharge temperature protection 6 E6 Communication error 9 E9 Full water protection 10 11 F1 Indoor ambient temperature sensor is open short circuited 12 F2 Indoor evaporator temperature sensor is open short circuited 13 F3 Outdoor ambient temperature sensor is open short circuited 14 F4 Outdoor condenser temperature s...

Страница 23: ...oo heavy a heat load of room e g too many people in the room Doors or windows are open Inlet and outlet of IDU are blocked Temperature is set too high Refrigerant is low e g refrigerant leakage Poor heating The filter is dirty Doors or windows are open Temperature is set too low Refrigerant is low e g refrigerant leakage Indoor fan doesn t start up during heating At startup the IDU fan will not op...

Страница 24: ...uangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E mail gree gree com cn www gree com U S CONTACT INFORMATION TRADEWINDS LLC www greecomfort com resources E mail info twclimate com Contractor Support 888 850 7928 Mon Fri 8AM 5PM EDT CAT NO GREE_SLIMDUCT_B_INSTALL_OWNERS_010119 ...

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