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Installation of Unit

Installation Manual 7

ENGLISH

3. Piping length and the elevation

CAUTION:
• Capacity is based on standard length and maximum allowance length is on

the basis of reliability.

• Oil trap should be installed every 5~7 meters.

20K

5/8"

1/4"

25

15

28K/30K/40K

5/8"

3/8"

30

20

44K/48K/50K

3/4"

3/8"

40

25

80K

1"

5/8"

50

30

PIPE SIZE

MODEL

GAS SIDE

LIQUID SIDE

Max.

Length

A (m)

Max.

Elevation

B (m)

A

B

Indoor unit

Outdoor unit

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Содержание LF480CE

Страница 1: ...ice com techsup html IMPORTANT Please read this installation manual completely before installing the product Installation work must be performed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly ENGLISH ...

Страница 2: ...amount 8 5 Installation method procedure 9 6 Preparation of installation parts and tools 10 7 Preparation of piping 11 8 Connection of piping 12 9 Precautions in bending 12 10 Connecting the cable to the indoor unit 13 11 Connecting the piping to the outdoor unit 14 12 Connecting the cable to the outdoor unit 14 13 Power supply and wiring 15 14 Vacuum drying of the connecting pipes and the indoor ...

Страница 3: ... follow the instruction Safety Precautions Installation Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not use a defective or underrated circuit breaker Use...

Страница 4: ...ock explosion or injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very hig...

Страница 5: ...oduct To avoid vibration or water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosio...

Страница 6: ...re the spaces indicated by arrows from the wall ceiling or other obstacles The indoor unit must keep the maintenance space 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicate...

Страница 7: ...d on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters 20K 5 8 1 4 25 15 28K 30K 40K 5 8 3 8 30 20 44K 48K 50K 3 4 3 8 40 25 80K 1 5 8 50 30 PIPE SIZE MODEL GAS SIDE LIQUID SIDE Max Length A m Max Elevation B m A B Indoor unit Outdoor unit ...

Страница 8: ...e outdoor unit on the concrete or any solid base securely and horizontally by securing it with bolts Ø12mm and nuts 2 If there is any vibration transmitted to the building mount the rubber underneath the outdoor unit Refrigerant amount Before shipment this air conditioner is filled with the rated amount of refrigerant including additional amount required for air purging subject to 5m piping length...

Страница 9: ...t indoor Connecting the pipings of the indoor unit 8 Check a gas leakage of the connecting part of the pipings 9 Vacuum drying of the piping and indoor unit The air which contains moisture and which remains in the refrigeration cycle may cause a malfunction on the compressor 10 Open the 3 way liquid side and 3 way gas side valves 11 Form the pipings To prevent heat loss and sweat 12 Checking the d...

Страница 10: ...e refrigerant amount 11 Bombe Freon 22 Gas charge Cleaning the pipe 12 Spanner To tighten the connecting parts of the pipings 13 Monkey spanner 14 Driver 15 Benchi 150mm Cutting the wires 16 Tapeline To measure the length 17 Core drill To make holes through the concrete wall and blocks 18 Voltmeter Amperemeter Clampmeter To measure the current and voltage 19 Insulation resistance tester To measure...

Страница 11: ...move flare nuts attached to indoor and outdoor units than put them on pipe tube having completed burr removal Not possible to put them on after flaring work 4 Flaring work Carry out flaring work using dedicated flaring tool for R 22 as shown below Firmly hold copper tube in a bar or die as indicated dimension in the table above 5 Check Compare the flared work with figure below If flare is noted to...

Страница 12: ...2 Do not repeat the bending process to prevent the tubing from cracking or crushing 3 Keep in mind that the bending part should not be cracked and make the radius R as long as possible Refer to Fig 2 PIPE SIZE TORQUE 1 4 1 8 Kg m 3 8 4 2 Kg m 1 2 5 5 Kg m 5 8 5 5 Kg m 3 4 6 5 Kg m 1 Move the indoor tubing and drain hose to the hole Remove tubing holder and pull the tubing out of the chassis 2 Repl...

Страница 13: ...shing 1 Open the inlet grille manually Fig 1 2 Open the terminal block cover with driver 3 Connect the cables LG doesn t sypply to the Terminal Block in the front Bracket Fig 2 4 Secure the terminal block cover to the original position with the screw 5 Insert the plastic tube Bushing in small hole in order to prevent the connecting wires from being cut by sharp edge of the hole Fig 3 America Canad...

Страница 14: ... screws 2 Connect wires to the terminals on the control board individually and secure the cables onto the control board with clamp 3 Secure the control board cover to the original position with the screws CAUTION Perform grounding This product should be grounded Defective grounding could cause an electric shock Gas side piping Liquid side piping Torque wrench Outdoor unit PIPE SIZE TORQUE 1 4 1 8 ...

Страница 15: ...s must be fitted for service operations The screws which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course of transportation Check them and make sure that they are all tightly fastened If they are loose it could give rise to burn out of the wires See to it that the starting voltage is maintained at more ...

Страница 16: ...ector 3 Remove the service port nut and connect the gauge manifold and the vacuum pump to the service port by the charge hose 4 Vacuum the indoor unit and the connecting pipes until the pressure in them lowers to below 76cmHg 5 Remove the valve stem nuts and fully open the stems of the 2 way and 3 way valves with a hexagon wrench 6 Tighten the valve stem nuts of the 2 way valve and 3 way valve 7 D...

Страница 17: ... water from entering the room form a trap and tape the piping 3 Fix the piping onto the wall with saddle or bracket 1 When using the drain elbow hose use a mount of 3cm of higher 2 In the cold district 0 c 32 F continued for 2 3 day the drain water is frozen and the fan fail to function do not use the drain elbow In case of the outdoor unit is installed below position of the indoor unit In case of...

Страница 18: ...nal checkings prepare the running test as follows Connect compound gauges to the check joints at discharge and suction sides of the compressor Turn all switches OFF Turn the main switch ON Running test should be accomplished as follows Set operation switch at FAN and the fan will start Check to ensure that the fan sounds normal Next set it at COOL and the compressor will start Check to ensure that...

Страница 19: ...P No 3828A20025V ...

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