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INSTALLATION MANUAL
AIR
CONDITIONER
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.
Floor standing
APUQ55GT3E0, APUQ55GT3M0, APUW55GT3E0, APUW55GT3M0
APUQ55LT3E0, APUQ55LT3M0, APUW55LT3E0, APUW55LT3M0
APUQ55GT3A0, APUQ50LT3E0, APUW50GT3E0, APUW50LT3E0
P/NO : MFL68061209
www.lg.com
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Related Manuals for LG APUQ55GT3E0
Summary of Contents for LG APUQ55GT3E0
- Page 1 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. Floor standing APUQ55GT3E0, APUQ55GT3M0, APUW55GT3E0, APUW55GT3M0 APUQ55LT3E0, APUQ55LT3M0, APUW55LT3E0, APUW55LT3M0 APUQ55GT3A0, APUQ50LT3E0, APUW50GT3E0, APUW50LT3E0 www.lg.com P/NO : MFL68061209...
- Page 2 TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
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Page 3: Important Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING... - Page 4 IMPORTANT SAFETY INSTRUCTIONS Operation • Do not share the outlet with other appliances. It will cause an electric shock or a fire due to heat generation. • Do not use the damaged power cable. Otherwise, it may cause a fire or electric shock. •...
- Page 5 IMPORTANT SAFETY INSTRUCTIONS CAUTION Installation • Install the drain hose to ensure that drain can be securely done. Otherwise, it may cause water leakage. • Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.
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Page 6: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING EN- LEAKAGE TEST AND ERGY EVACUATION Preparation IMPORTANT SAFETY IN- Leakage test STRUCTIONS Evacuation INSTALLATION OF OUT- TEST RUNNING DOOR UNIT FUNCTION WIRING CONNECTION Dip switch setting Electrical wiring SELF-DIAGNOSIS FUNC- Connecting cables between indoor unit and outdoor unit TION... -
Page 7: Installation Of Outdoor Unit
INSTALLATION OF OUTDOOR UNIT INSTALLATION OF OUTDOOR UNIT Installation Places - If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted. - Ensure that the spaces indicated by arrows around front, back and side of the unit. - Do not place animals and plants in the path of the warm air. - Page 8 Piping length and the elevation Floor Standing Air conditioner Pipe Size Length A (m) Elevation B (m) Additional Refrigerant MODEL (g/m) Liquid Standard Max. Standard Max. APUQ55GT3E0 Ø19.05(3/4) Ø 9.52(3/8) APUQ55GT3M0 APUQ55LT3E0 APUQ55LT3M0 APUQ55GT3A0 APUQ50LT3E0 APUW55GT3E0 Ø19.05(3/4) Ø 9.52(3/8) APUW55GT3M0 APUW55LT3E0 APUW55LT3M0 APUW50GT3E0 APUW50LT3E0 If installed tube is shorter than 5 m, additional charging is not necessary.
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Page 9: Wiring Connection
Breaker) between the power source and the unit. A disconnection device to ade- quately disconnect all supply lines must be fitted. - Model of circuit breaker recommended by authorized personnel only Model Phase(ø) ELCB APUQ55GT3E0 APUQ55GT3M0 APUW55GT3E0 40 A APUW55GT3M0 APUQ55GT3A0 APUW50GT3E0 APUQ55LT3E0 APUQ55LT3M0... -
Page 10: Connecting Cables Between Indoor Unit And Outdoor Unit
The power cable connected to the outdoor unit should be complied with IEC 60245 or HD 22.4 S4 (This equipment shall be provided with a cable set complying with the national regulation. 10±3 mm Model Phase(Ø) Area(mm ) Cable Type APUQ55GT3E0 APUQ55GT3M0 APUW55GT3E0 H07RN-F APUW55GT3M0 For the 1-Phase APUQ55GT3A0 APUW50GT3E0 10±3 mm... - Page 11 WIRING CONNECTION Precautions when laying power wiring Use round pressure terminals for connections to the power terminal block. Power wire Round pressure terminal When none are available, follow the instructions below. - Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.) - When connecting wiring which is the same thickness, do as shown in the figure below.
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Page 12: Connecting The Cable To Outdoor Unit
WIRING CONNECTION Connecting the cable to Outdoor Unit Remove the side panel for wiring connection. Use the cord clamp to fix the cable. Earthing work - Connect the cable of diameter more to the earthing terminal provided in the control box and do earthing. -
Page 13: Connecting Pipes
CONNECTING PIPES CONNECTING PIPES Preparation of piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable - Use the piping kit accessory or the pipes pur- chased locally. -
Page 14: Connecting The Pipes To The Outdoor Unit
CONNECTING PIPES Connecting the pipes to the outdoor unit Align the center of the piping and sufficiently tighten the flare nut by hand. Finally, tighten the flare nut with torque wrench until the wrench clicks. - When tightening the flare nut with torque wrench, ensure the direction for tightening follows the arrow on the wrench. - Page 15 CONNECTING PIPES When connecting in a downward direction, <Figure 2> knock out the knock-out hole of the base pan. (refer to figure 2) Knock-out Base pan <Figure 3> Preventing foreign objects from entering (Fig- ure3) Liquid side piping - Plug the pipe through-holes with putty or in- sulation material(procured locally)to stop up Gas side piping all gaps,as shown in the figure 3.
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Page 16: Forming The Piping
CONNECTING PIPES Forming the piping In cases where the Outdoor unit is installed above the Indoor unit perform the following. Form the piping by wrapping the connecting Tape the piping and connecting cable from portion of the indoor unit with insulation mate- down to up. - Page 17 CONNECTING PIPES Plumbing materials and storage methods Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness...
- Page 18 CONNECTING PIPES Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, capillary, oil hole of accumulator and suction hole of oil pump in compressor.
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Page 19: Leakage Test And Evacuation
LEAKAGE TEST AND EVACUATION LEAKAGE TEST AND EVACUATION Air and moisture remaining in the refrigerant CAUTION system have undesirable effects as indicated below. To avoid nitrogen entering the refrigerant - Pressure in the system rises. system in a liquid state, the top of the cylinder must be higher than its bottom - Operating current rises. -
Page 20: Evacuation
LEAKAGE TEST AND EVACUATION Evacuation - Replace the valve caps at both gas and liquid side service valves and fasten them tight. - Connect the charge hose end described in This completes air purging with a vacuum pump. the preceding steps to the vacuum pump to The air conditioner is now ready to test run. -
Page 21: Test Running
TEST RUNNING TEST RUNNING Precautions In Test Running - The initial power supply must provide at least 90 % of the rated voltage. Otherwise, the air conditioner should not be operated. CAUTION For test run, carry out the cooling operation firstly even during heating season. If heating operation is carried out firstly, it leads to the trouble of compressor. - Page 22 TEST RUNNING CAUTION After the confirmation of the above conditions, prepare the wiring as follows: Never fail to have an individual power specialized for the air conditioner. As for the method of wiring, be guided by the circuit diagram pasted on the inside of control box cover.
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Page 23: Function
- If you set the Dip Switch when power is on, the change in setting is not applicable. The chang- ing setting is enabled only when power is reset. - Close the side panel or Top Cover. Dip Switch APUQ55GT3E0 APUW55GT3E0 APUQ55GT3M0 APUW55GT3M0... -
Page 24: Self-Diagnosis Function
- After error occurrence, if error is released, error LED is also released simultaneously. - To operate again on the occurrence of error code, be sure to turn off the power and then turn - Having or not of error code is different from model. APUW55GT3E0 Model APUQ55GT3E0 APUW55GT3M0 APUQ55GT3M0 APUW50GT3E0 Main... - Page 25 SELF-DIAGNOSIS FUNCTION APUQ55LT3E0 APUW55LT3E0 Model APUQ55LT3M0 APUW55LT3M0 APUQ50LT3E0 APUW50LT3E0 Main Inverter External fan Model APUQ55GT3A0 Main Inverter External fan...
- Page 26 SELF-DIAGNOSIS FUNCTION Error Display Error Operation Description Count Code State 7 segment Red LED Green LED 2 times ◑ 1 time ◑ 10 times within 1h DC Peak (IPM fault) Error CH 21 Stop 2 times ◑ 2 times ◑ CT2 Error (Input of Over-Current) CH 22 Infinite restart...
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Page 27: Installation Guide At The Seaside
INSTALLATION GUIDE AT THE SEASIDE INSTALLATION GUIDE AT THE SEASIDE In case, to install the outdoor unit on the sea- CAUTION side, set up a windbreak not to be exposed to the sea wind. • Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. -
Page 28: Convenient Functions
CONVENIENT FUNCTIONS CONVENIENT FUNCTIONS Pressure compensation function If you use additional pipe to install the cooling operation, this function can compensate the target of pressure by setting dip switch. * Pressure compensation function is release at initial state as standard. * This function is used only if the length of pipe >...