ITALIANO 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 : LG Decorative Type Fan Coil Unit P/NO : MFL39192001 MSZEF0032 www.lg.
Fan Coil Unit Installation Manual TABLE OF CONTENTS FOR YOUR RECORDS Safety Precautions.................3 Care and maintenance...........8 Before you call for service ..10 Installation ............................11 Write the model and serial numbers here: Model # Serial # You can find them on a label on the side of each unit. Dealer's Name Date Purchased ■ Staple your receipt to this page in the event you need it to prove date of purchase or for warranty issues.
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage. Meanings of symbols used in this manual are as shown below. Be sure not to do.
Safety Precautions Do not install, remove, or re-install the unit by yourself (customer). • There is risk of fire, electric shock, explosion, or injury. Be cautious when unpacking and installing the product. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the evaporator. For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury.
Safety Precautions If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. • There is risk of electric shock or fire. Be cautious that water could not enter the product. • There is risk of fire, electric shock, or product damage. Stop operation and close the window in storm or cyclone. If possible, remove the product from the window before the cyclone arrives.
Safety Precautions Installation After installing, the water leakage test should be perfrmed. • A bad connection may cause water leakage. CAUTION Install the drain hose to ensure that water is drained away properly. • A bad connection may cause water leakage. Keep level even when installing the product. • To avoid vibration or water leakage. 90° Use two or more people to lift and transport the product. • Avoid personal injury.
Safety Precautions Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. • There is risk of fire, electric shock, or damage to the plastic parts of the product. Do not touch the metal parts of the product when removing the air filter. They are very sharp! • There is risk of personal injury. Always insert the filter securely. Clean the filter every two weeks or more often if necessary.
Care and maintenance Care and maintenance Caution: Before performing any maintenance,turn off the main power to the system. Fan coil Unit Never use any of the followings: • Water hotter than 40°C Could cause deformation and/or discoloration. • Volatile substances Could damage the surfaces of the air conditioner. Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. Note: Supply power must be disconnected before cleaning the unit.
Care and maintenance When the unit is not going to be used for a long time. When it is not going to be used for a long time. 1 When the unit is to be used again. Operate the unit on Air circulation mode for 2 to 3 hours. Check that the air inlet and outlet of the unit are not blocked. ¥This will dry out the internal parts. 2 Turn off the circuit breaker. Helpful information CAUTION:Turn off the circuit breaker when the air conditioner is not going to be used for a long time.
Before you call for service... Before you call for service... Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. Case The unit does not operate. The room has a peculiar odor. Does not cool or heat effectively.
Installation Installation Selection of the best location Ceiling Suspended 1. Do not have any heat or steam near the unit. 2. Select a place where there are no obstacles in front of the unit. More than 70cm 3. Make sure that condensation drainage can be conveniently routed away. More than 70cm 4. Do not install near a doorway. 5. Ensure that the interval between a wall and the left (or right) of the unit is more than 70cm. More than 30cm ENGLISH 6.
Installation Preparing Work for Installation Remove Front Panel 1.Remove screws both left and right from the lid as shown in figure 1 . 2.Open the lid,then you can find another 4 screws(both left and right). 3.Remove screws from the front panel (both left and right) 4.Remove the front panel carefully To assembly,perform the procedure in opposite order. 1 2 3 4 Install Leg Base (For floor standing type) According to the picture, install the Leg Base (Both left and right).
Installation DIM. MODEL MOUNTING THE ANCHOR NUT AND BOLT • Prepare 4 suspension bolts. (Each bolts length should be same.) 036 046 066 086/106 126 A B 672 822 1022 1322 1622 221 221 221 221 221 • Measure and mark the position for the Suspension bolts and the piping hole. • Drill the hole for anchor nut on the ceiling. • Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceiling.
Installation Fan coil unit installation Hang the Fan Coil unit on suspension bolt as per following guidelines: 1. Lift the fan coil unit to sufficient height. 2. Insert the suspended part of four suspension bolt in the four hangers provided on the side of main body one by one. 3. Lower the fan coil unit till the hangers rest on their respective flat washer. 4. Adjust the level in the top down direction by adjusting the suspension bolts.
Installation Pipe Connect, Insulation Water pipe Connection and Insulation All thermal insulation must comply with local requirement the thickness min 20mm. Union for water pipe Thermal insulator for water pipe (Local supply) Thermal insulator for piping(Local supply) Elbow pipe (Local supply) Drain pipe Ceiling Suspended 1/2" Floor Standing 3/4" Water valve insulator(Local supply) Overlap with thermal insulator for piping.
Installation Floor Standing • Drain piping must have downward (1/50 to 1/100): be sure not to provide up-and-down slope to prevent reverse flow. • During drain piping connection, be careful not to exert extra force on the drain port on the fan coil unit. • The outside diameter of the drain connection on the unit is 20mm. • Be sure to install heat insulation on the drain piping Heat insulation material: Polyethylene foam with thickness more than 10 mm.
Installation Connecting Cable to the Fan Coil Unit Connect the wires to the terminals on the control board individually according to the thermostat. • Ensure that the color of the wires of unit and the terminal No. are the same as those of unit respectively. The power cord connected to the unit should be complied with the following specifications (Rubber insulation, type H05RN-F approved by HAR or SAA). CAUTION Install Power Cord NORMAL CROSS-SECTIONAL AREA 1.
Installation Three step controller Installation (Ceiling Suspend) Install the 3-step about 5ft(1.5m) above the floor. Do not install the controller where it can be affected by: - Drafts, or dead spots behind doors and in corners. - Concealed pipes and chimneys. - Uncontrolled areas such as an outside wall behind the controller. (The standard height is 1.2~1.5 m from floor level.) yes HI OFF MED LO OFF AIR CONDITIONER HI OFF MED LO OFF AIR CONDITIONER 5feet (1.
Installation Checking the Drainage To check the drainage. 1. Pour a glass of water on the evaporator using a kettle. 2. Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit. Water Quality The standards for cooling water quality Index Standard Item Reference Item Item PH[25°C] Electric cOnductivity[25°C](µs/cm) ChlOride iOn(mgCl-/L) Sulfate iOn (mgSO42-/L) Acid cOnsumptiOn[PH4.
Installation Water Quality The standards for adding water quality Index Item Standard Item Reference Item PH[25°C] Electric conductivity[25°C](µs/cm) Chloride ion(mgCl-/L) Sulfate ion (mgSO42-/L) Acid consumption[PH4.8](mgCaCO3/L) Calcium hardness(mgCaCO3/L) Turbidity Fe(mgFe/L) Ammonium ion(mgNH4+/L) Ionic phases silica(mgSiO2/L) Circuit Breaker Use a recognized circuit breaker between the power source and the unit. A disconnecting device to adequately disconnect all supply lines must be fitted.
