SPLIT-TYPE ROOM AIR CONDITIONER Owner’s Manual & Installation Manual SYSPLIT MULTI IMPORTANT NOTE: Read this manual and SAFETY MANUAL(if any) carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference. Please check the applicable models, technical data, F-GAS(if any) and manufacturer information from the “Owner's Manual Product Fiche” in the packaging of the outdoor unit (European Union products only).
Table of Contents Safety Precautions ........................................................................04 Owner’s Manual Unit Parts And Major Functions ...................................................08 1. Unit Parts .............................................................................................................................................................................08 2. Operating temperature ....................................................................................
Installation Manual Accessories .......................................................................................17 Installation Summary .........................................................................18 Installation Diagram ...........................................................................19 Specifications .....................................................................................20 Outdoor Unit Installation .................................................................
Safety Precautions Introduction Precautions Safety Precautions Read Safety Precautions Before Operation and Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION. WARNING This symbol indicates the possibility of personnel injury or loss of life. CAUTION This symbol indicates the possibility of property damage or serious consequences.
Safety Precautions CLEANING AND MAINTENANCE WARNINGS • Do not clean the air conditioner with combustible cleaning agents. Combustible cleaning agents can cause fire or deformation. CAUTION • • • • • • • Turn off the air conditioner and disconnect the power if you are not going to use it for a long time. Turn off and unplug the unit during storms. Make sure that water condensation can drain unhindered from the unit. Do not operate the air conditioner with wet hands. This may cause electric shock.
Safety Precautions WARNINGS FOR PRODUCT INSTALLATION 2. Installation must be performed according to the installation instructions. Improper installation can cause water leakage, electrical shock, or fire. (In North America,installation must be performed in accordance with the requirement of NEC and CEC by authorized personnel only.) 3. Contact an authorized service technician for repair or maintenance of this unit. This appliance shall be installed in accordance with national wiring regulations. 4.
Installation height (m) 1.0 0.6 /1.8 /2.2 1.05 1.1 Minimum room area (m²) Amount of refrigerant to be charged (kg) Installation height (m) Minimum room area (m²) 9 /1 /1 1.95 0.6 /1.8 /2.2 33 /4 /2.5 0.6 /1.8 /2.2 9.5 /1.5 /1 2.0 0.6 /1.8 /2.2 34.5 /4 /3 0.6 /1.8 /2.2 10.5 /1.5 /1 2.05 0.6 /1.8 /2.2 36 /4 /3 1.15 0.6 /1.8 /2.2 11.5 /1.5 /1 2.1 0.6 /1.8 /2.2 38 /4.5 /3 1.2 0.6 /1.8 /2.2 12.5 /1.5 /1 2.15 0.6 /1.8 /2.2 40 /4.5 /3 1.25 0.6 /1.8 /2.2 13.5 /1.5 /1 2.2 0.
Unit Parts And Major Functions Unit Parts And Major Functions Unit Parts (A) Wall-mounted type (B) Duct / Ceiling type 4 Indoor unit 1. Panel frame 2. Rear air intake grille 3. Front panel 4. Air purifying filter & Air filter(behind) 5. Horizontal louver 6. LCD display window 7. Vertical louver 8. Manual control button(behind) 9. Remote controller holder Outdoor unit 10. Drain hose, refrigerant connecting pipe 11. Connective cable 12. Stop valve 13. Fan hood Indoor unit 1. Air outlet 2.
(D) Compact four-way cassette type Indoor unit 1. Air flow louver (at air outlet) 2. Air inlet (containing air filter) 3. Remote controller 4. Installation part 5. Display panel Outdoor unit 6. Drain hose, refrigerant connecting pipe 7. Connective cable 8. Stop valve 9. Fan hood Indoor unit 1. Drain pump(drain water from indoor unit) 2. Drain hose 3. Air outlet 4. Air inlet 5. Air-in grill 6. Display panel 7. Remote controller Outdoor unit 8. refrigerant connecting pipe 9. Connective cable 10.
Unit Parts And Major Functions NOTE: For multi-split type air conditioners, one outdoor unit can be matched to different types of indoor units. All of the pictures in this manual are for demonstration purposes only. Your air conditioner may be slightly different, if similar in shape. The following pages introduce several kinds of indoor units that can be matched with the outdoor units.
Protection of the air conditioner Compressor protection • The compressor cannot restart for 3 minutes after it stops. Anti-cold air (Cooling and heating models only) • The unit is designed not to blow cold air on HEAT mode, when the indoor heat exchanger is in one of the following three situations and the set temperature has not been reached. A) When heating has just started. B) During defrosting. C) Low temperature heating.
Unit Parts And Major Functions The air conditioner turns to FAN ONLY mode from COOL or HEAT (for cooling and heating models only) mode. When the indoor temperature reaches the set temperature setting, the compressor will stop automatically, and the air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises on COOL mode or falls on HEAT mode to the set point.
Manual Operations And Maintenance Optimal operation While two or more indoor units are simultaneously operating, make sure the modes do not conflict with each other. The heat mode claims precedence over all other modes. If the unit intially started to operate in HEAT mode, the other units can operate in HEAT mode only. For example: If the unit intially started operates under COOL (or FAN) mode, the other units can operate under any mode except HEAT.
Troubleshooting SAFETY PRECAUTIONS Troubleshooting If any of the following conditions occurs, turn off your unit immediately! • The power cord is damaged or abnormally warm • You smell a burning odor • The unit emits loud or abnormal sounds • A power fuse blows or the circuit breaker frequently trips • Water or other objects fall into or out of the unit DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED SERVICE PROVIDER IMMEDIATELY! Common Issues The following problems are not a malfunction and i
Problem The indoor unit makes noises The outdoor unit makes noises A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also heard when the drain pump (optional) is in operation. A squeaking sound may occur after running the unit in HEAT mode due to expansion and contraction of the unit’s plastic parts. A low hissing sound may occur during operation. This is normal and is caused by refrigerant gas flowing through both the indoor and outdoor units.
Troubleshooting Tips When troubles occur, please check the following points before contacting a repair company.
Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. The items are not included with the air conditioner must be purchased separately.
Installation Summary INSTALLATION ORDER 2 1 Install the outdoor unit 3 Connect the refrigerant pipes Installation Summary 5 L (L1) N (L2) Connect the wires 4 MC Perform a test run MC Evacuate the refrigeration system
Installation Diagram Installation Diagram 3 4 2 Mounting screw ST3.9×25-C-H 1 Installation plate Outdoor Unit Air-break Switch Clip anchor Air-break Switch Remote controller holder 1 2 Drainage Pipe 543 5 Outdoor Unit Power Cable re t h an Installation Diagram Mo The maximum amount of the connection cables is 5. This section is for reference only. (1) Safety Precautions Mounting screw ST3.
Specifications Number of units that can be used together Compressor stop/start frequency Power source voltage Connected units 1-5 units Stop time 3 min or more voltage fluctuation within ±10% of rated voltage voltage drop during start within ±15% of rated voltage interval unbalance within ±3% of rated voltage Unit: m/ft. 1 drive 2 1 drive 3 1 drive 4 1 drive 5 Max. length for all rooms 40/131 60/197 80/262 80/262 Max. length for one indoor unit 25/82 30/98 35/115 35/115 Max.
Outdoor Unit Installation 6 0 cm ( 2 4 i n ) a b o ve Install the unit by following local codes and regulations , there may be differ slightly between different regions. 30cm in) l (12 wal m k c 30 bac m fro (12 on le in) ft in) (79 m nt c 0 o 20 in fr 60cm (2 on rig 4in) ht Installation Instructions – Outdoor unit Step 1: Select installation location Before installing the outdoor unit, you must choose an appropriate location.
Step 3: Anchor outdoor unit Step 2: Install drain joint (Heat pump unit only) Before bolting the outdoor unit in place, you must install the drain joint at the bottom of the unit. Note that there are two different types of drain joints depending on the type of outdoor unit. If the drain joint comes with a rubber seal (see Fig. A ), do the following: 1. Fit the rubber seal on the end of the drain joint that will connect to the outdoor unit. 2.
(unit: mm/inch) Outdoor Unit Dimensions Mounting Dimensions Distance A WxHxD Notes On Drilling Hole In Wall You must drill a hole in the wall for the refrigerant piping, and the signal cable that will connect the indoor and outdoor units. 1. Determine the location of the wall hole based on the location of the outdoor unit. 2. Using a 65-mm (2.5”) core drill, drill a hole in the wall. NOTE: When drilling the wall hole, make sure to avoid wires, plumbing, and other sensitive components.
Refrigerant Piping Connection NOTE: For quick-connect models, please refer to the internal machine manual for the installation method of the connecting pipe. The external machine manual does not repeat the instructions. When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit. The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle.
4. Remove PVC tape from ends of pipe when ready to perform flaring work. 5. Clamp flare form on the end of the pipe. The end of the pipe must extend beyond the flare form. Indoor unit tubing Pipe Flare nut Flare form 3. Tighten the flare nut as tightly as possible by hand. 4. Using a spanner, grip the nut on the unit tubing. Pipe 5. While firmly gripping the nut, use a torque wrench to tighten the flare nut according to the torque values in above table. 6. Place flaring tool onto the form. 7.
NOTE ON MINIMUM BEND RADIUS Carefully bend the tubing in the middle according to the diagram below. DO NOT bend the tubing more than 90° or more than 3 times. Bend the pipe with thumb 7. Thread this pipeline through the wall and connect it to the outdoor unit. 8. Insulate all the piping, including the valves of the outdoor unit. 9. Open the stop valves of the outdoor unit to start the flow of the refrigerant between the indoor and outdoor unit. CAUTION min-radius 10cm (3.9”) 6.
Wiring BEFORE PERFORMING ANY ELECTRICAL WORK, READ THESE REGULATIONS electrical wiring with your signal wiring. This may cause distortion and interference. 14. The unit must be connected to the main outlet. Normally, the power supply must have a impedance of 32 ohms. 15. No other equipment should be connected to the same power circuit. 16. Connect the outdoor wires before connecting the indoor wires. WARNING BEFORE PERFORMING ANY ELECTRICAL OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM.
(B) Air switch Indoor unit power wires Outdoor unit (purchased seperately) Indoor unit Rated Current of Appliance (A) Air switch Nominal Cross-Sectional Area (mm²) > 3 and ≤ 6 0.75 (purchased seperately) Air switch > 6 and ≤ 10 1 Indoor unit power wires (purchased seperately) > 10 and ≤ 16 1.5 > 16 and ≤ 25 2.
2. Remove the electric cover of the outdoor unit. If there is no cover on the outdoor unit, take off the bolts from the maintenance board and remove the protection board. Cover Screw 3. Connect the u-lugs to the terminals Match the wire colors/labels with the labels on the terminal block, and firmly screw the u-lug of each wire to its corresponding terminal. 4. Clamp down the cable with designated cable clamp. 5. Insulate unused wires with electrical tape.
NOTE: For quick-connector models, please refer to <> packed with the indoor unit. NOTE:Refer to the following figures if end-users wish to perform their own wiring. Run the main power cord through the lower line-outlet of the cord clamp. ---- This symbol indicates field wiring.
L W N L(A) N(A) S(A) L(B) N(B) S(B) L(1) W POWER SUPPLY 3 1 TO 2 A 3 1 2 3 Model T Model S L N or or or To indoor unit B Model V or or or or To indoor unit B To indoor unit A Wiring To indoor unit A L(B) N(B) S(B) OPTIONAL POWER SUPPLY or L(A) N(A) S(A) OPTIONAL Model U N OPTIONAL To indoor unit B OPTIONAL OPTIONAL or or L L(B) N(B) S(B) L(A) N(A) S(A) OPTIONAL OPTIONAL OPTIONAL OPTIONAL POWER SUPPLY To indoor unit A OPTIONAL 2 OPTIONAL 1 L1(A) L2(A)
One-three models: OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL 1(L) 2(N) 3(S) OPTIONAL L(C) N(C) S(C) Model I Model H Model G OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL Model J OPTIONAL OPTIONAL OPTIONAL or OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL or To indoor unit C To indoor unit B To indoor unit A or 1(L) 2(N) 3(S) 1(L) 2(N) 3(S) or
One-four models: OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL 1(L) 2(N) 3(S) OPTIONAL 1(L) 2(N) 3(S) OPTIONAL OPTIONAL 1(L) 2(N) 3(S) OPTIONAL OPTIONAL or 1(L) 2(N) 3(S) Model B OPTIONAL OPTIONAL OPTIONAL or OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL Model A Model D Model C L L(A) N(A) S(A) N L(C) N(C) S(C) TO Y/G TO Y/G B L(D) N(D) S(D) OPTIONAL A OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL TO Y/G POWE
1(C) 2(C) 3(C) 1(D) 2(D) 3(D) 1(A) 2(A) 3(A) 1(B) 2(B) 3(B) OPTIONAL Model J L(C) N(C) S(C) L(D) N(D) S(D) OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL or or or or To indoor unit B Model M To indoor unit C To indoor unit D OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL Model L Mode K Wiring TO C POWER SUPPLY Model I TO B OPTIONAL TO A TO D POWER SUPPLY To indoor unit A OPTIONAL OPTIONAL TO C OPTIONAL TO B OPTIONAL OPT
One-five models: OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL Wiring Model H
1(C) 2(C) 3(C) 1(D) 2(D) 3(D) 1(E) 2(E) 3(E) 1(A) 2(A) 3(A) 1(B) 2(B) 3(B) OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL TO D TO E POWER SUPPLY OPTIONAL TO D TO E TO C L1 L2 OPTIONAL TO C OPTIONAL OPTIONAL TO B TO B L1 L2 Model J L1(C) L2(C) S(C) L1(D)L2(D) S(D) L1(E) L2(E) S(E) OPTIONAL OPTIONAL TO A TO A POWER SUPPLY Model I L1(A) L2(A)S(A) L1(B) L2(B) S(B) OPTIONAL TO D TO E OPTIONAL TO C OPTIONAL OPTIONAL TO B OPTIONAL OPTIONAL OPTIONAL TO A L1(C) L2(C) S(C) L1(D)L2(
Air Evacuation Preparations and Precautions Air and foreign matter in the refrigerant circuit can cause abnormal rises in pressure, which can damage the air conditioner, reduce its efficiency, and cause injury. Use a vacuum pump and manifold gauge to evacuate the refrigerant circuit, removing any non-condensable gas and moisture from the system. Evacuation should be performed upon initial installation and when unit is relocated.
Note On Adding Refrigerant CAUTION • Refrigerant charging must be performed after wiring, vacuuming, and the leak testing. • DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system. Doing so can damage the unit or impact it’s functioning. • Charging with unsuitable substances may cause explosions or accidents. Ensure that the appropriate refrigerant is used. • Refrigerant containers must be opened slowly. Always use protective gear when charging the system.
Only for Australia models : • DO NOT mix refrigerants types. N=2(one-twin models),N=3(one-three models),N=4(one-four models),N=5(one-five models). Some systems require additional charging depending on pipe lengths. The standard pipe length is 10m.
Safety And Leakage Check Electrical safety check Perform the electrical safety check after completing installation. Cover the following areas: 1. Insulated resistance The insulated resistance must be more than 2MΩ. 2. Grounding work After finishing grounding work, measure the grounding resistance by visual detection and using the grounding resistance tester. Make sure the grounding resistance is less than 4Ω. 3.
Test Run Before Test Run A test run must be performed after the entire system has been completely installed. Confirm the following points before performing the test: a) The indoor and outdoor units are properly installed. b) Piping and wiring are properly connected. c) No obstacles near the inlet and outlet of the unit that might cause poor performance or product malfunction. d) The refrigeration system does not leak. e) Drainage system is unimpeded and draining to a safe location.
Function of Automatic Wiring/Piping Correction Automatic Wiring/Piping Correction Function More recent models now feature automatic correction of wiring/piping errors. Press the "check switch" on the outdoor unit PCB board for 5 seconds until the LED displays "CE”, indicatomg that this function is working, Approximately 5-10 minutes after the switch is pressed, the "CE" disappears, meaning that the wiring/piping error is corrected and all wiring/piping is properly connected.
The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. Any updates to the manual will be uploaded to the service website, please check for the latest version. QS003UI-Y TD 16122300000557 2021.09.
