LG UU36WH Installation Manual

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Installation manual (25 pages)

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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.

TYPE : High Efﬁciency Inverter

P/NO : MFL40910618

www.lg.com

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Summary of Contents for LG UU36WH

Page 1 • 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. TYPE : High Efﬁciency Inverter www.lg.com P/NO : MFL40910618...
Page 2: Table Of Contents
Single A Air Conditioner Installation Manual CONTENTS Safety Precautions ....................3 Installation of Outdoor Unit................6 Wiring Connection.....................10 Connecting Pipes ....................13 Leakage test and Evacuation ................17 Test running .......................19 Self-diagnosis Function..................21 Installation Guide at the Seaside ..............22 2 Air Conditioner...
Page 3: Safety Precautions
Safety Precautions Safety Precautions To prevent the injury of the user or other people and property damage, the following instructions must be followed. ■ Be sure to read before installing the air conditioner. ■ Be sure to observe the cautions specified here as they include important items related to safety. ■...
Page 4 Safety Precautions Do not install the product at a place that there Use caution when unpacking and installing. is concern of falling down. • Otherwise, it may result in personal injury. • Sharp edges may cause injury. Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases.
Page 5 Safety Precautions ■ Installation Install the drain hose to ensure that drain Install the product so that the noise or hot can be securely done. wind from the outdoor unit may not cause any damage to the neighbors. • Otherwise, it may cause water leakage. •...
Page 6: Installation Of Outdoor Unit
Elevation B(m) Model refrigerant (g/m) Liquid Standard Max. Standard Max. UU36WH/UU37WH Ø15.88 Ø9.52 UU42WH/UU43WH (5/8) (3/8) UU48WH/UU49WH If installed tube is shorter than 7.5 m, additional charging is not necessary. Additional Refrigerant = (A -7.5) x Additional refrigerant (g) Indoor unit...
Page 7 Installation of Outdoor Unit ■ Synchro Operation Install the branch pipe so that pipe length and difference between high and low will not exceed below Spec. [Unit : m] Branch Pipe Length & Height Spec(MAX.) Total(L1+L2+L3+L4+L5) Main Pipe(L1) Branch Pipe (L2+L3+L4+L5) Each Indoor-Outdoor (H1) Remote...
Page 8 Duct Convertible Cassette Duct Convertible Cassette Duct Convertible UU36WH/UU37WH UT18H NP1*2 UB18H NG1*2 UV18H NJ1*2 UT12H NP1*3 UV12H NJ1*3 UU42WH/UU43WH UT21H NN1*2 UB21H NG1*2 UV21H NJ1*2 UT18H NP1*3 UB18H NG1*3 UV18H NJ1*3 UT12H NP1*4 UU48WH/UU49WH UT24H NN1*2 UB24H NG1*2 UV24H NJ1*2 UT18H NP1*3 UB18H NG1*3 UV18H NJ1*3 UT12H NP1*4...
Page 9 Installation of Outdoor Unit 4. Outdoor Unit PCB Setting Procedure For Simultaneous Operation System 1. DIP SW2 Setting Set the DIP SW2 as below Table (Ⓐ) 2. Auto Addressing Method Addressing work assigns address to each indoor unit. When firstly installing product or replacing the indoor unit PCB.
Page 10: Wiring Connection
Wiring Connection Wiring Connection Electrical Wiring Perform the electrical wiring work according to the electrical wiring connection. • All wiring must comply with local requirements. ELCB • Select a power source that is capable of Main power source supplying the current required by the air Switch box conditioner.
Page 11 1 Phase(Ø) NORMAL CROSS-SECTIONAL AREA NORMAL Model Phase(Ø) Area(mm CROSS-SECTIONAL UU36WH AREA 0.75mm UU42WH UU48WH 3 Phase(Ø) UU37WH UU43WH UU49WH When the connection line between the indoor unit and outdooor unit is over 40m, connect the telecommunication line and power line separately.
Page 12 Wiring Connection Connecting the cable to Outdoor Unit • Remove the side panel for wiring connection. • Use the cord clamp to fix the cord. • Earthing work - Case 1 :Terminal block of Outdoor Unit have mark. • Connect the cable of diameter 1.6mm or 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 Copper Slanted Uneven Rough following procedure. tube Cut the pipes and the cable. • Use the accessory piping kit or the pipes purchased locally.
Page 14 Connecting Pipes Connecting the pipes to the Outdoor unit • Align the center of the piping and sufficiently tighten the flare nut by hand. Continuous • Finally, tighten the flare nut with torque wrench until the wrench clicks. - When tightening the flare nut with torque Torque wrench wrench, ensure the direction for tightening...
Page 15 Connecting Pipes • When connecting in a downward direction, knock <Figure 2> out the knock-out hole of the base pan. (refer to figure 2) Knock-out Base pan Preventing foreign objects from entering <Figure 3> (Figure3) Liquid side piping • Plug the pipe through-holes with putty or insulation material(procured locally)to stop up all Gas side piping gaps,as shown in the figure 3.
Page 16 Seal a small opening around the pipings with Connecting Pipes gum type sealer. Forming the piping Plastic band Form the piping by wrapping the connecting portion of the indoor Seal a small Seal a small Seal a small unit with insulation material and opening around opening around opening around...
Page 17: Leakage Test And Evacuation
Leakage test and Evacuation Leakage test and Evacuation Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. 1. Pressure in the system rises. 2. Operating current rises. 3. Cooling(or heating) efficiency drops. 4. Moisture in the refrigerant circuit may freeze and block capillary tubing. 5.
Page 18 Leakage test and Evacuation Evacuation 1. Connect the charge hose end described in the Indoor unit preceding steps to the vacuum pump to evacuate the tubing and indoor unit. Confirm the "Lo and Hi" knob of the manifold valve is open. Then, run the vacuum pump. The operation time for evacuation varies with tubing length and capacity of the pump.
Page 19: Test Running
Test running Test running 1. 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. ① For test run, carry out the cooling operation firstly even during CAUTION heating season.
Page 20 Test running CAUTIO N: After the confirmation of the above conditions, prepare the wiring as follows: 1) 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.
Page 21: Self-Diagnosis Function
Self-diagnosis Function Self-diagnosis Function Error Indicator (Outdoor) Outdoor Error Ex) Error 21 (DC Peack) 2 Times 2 Times 2 Times LED01G (RED) 1 Sec. 1 Sec. 1 Sec. 1 Time 1 Time 1 Time LED02G (GREEN) 2 Sec. 2 Sec. LED 1 LED 2 Indoor...
Page 22: Installation Guide At The Seaside
3) Select a well-drained place. 1. If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional anticorrosion treatment. 2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water...

This manual is also suitable for:

Uu37wh Uu49wh Uu42wh Uu43wh Uu48wh