Panasonic Cs W7ckp Cs W9ckp Cs W7ckp Series Repair Manual
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MANUAL Five stages of adjustment can be made between 14° ~ 36°.MANUAL Five stages of adjustment can be made between 0° ~ 61°. Heat Pump Model MANUAL Five stages of adjustment can be made between 14° ~ 36°. Swing up/down AutomaticallyMove up/down Automatically MANUAL Five stages of adjustment can be made between 0° ~ 61°. –When the discharge air temperature is low such as at the start of heating operation, the air blows at horizontal level. As the temperature rises, the hot air blows at a downward direction. –To stop this operation, press MANUAL. HEAT Operation AUTOCOOL / DRY Operation AUTO Swing up/down Automatically Operation Details COOL – Cooling Operation To set the room temperature at your preference cooling comfort. AUTO – Automatic Operation Sense indoor temperature to select the optimum mode. Temperature is not displayed on the remote control during AUTO operation. DRY – Soft Dry Operation A very gentle Cooling Operation, prior to dehumidification. It does not lower the room temperature. During Soft Dry operation, the indoor fan operates at Low fan speed. HEAT – Heating Operation (for Heat Pump Model only) Heat is obtained from outdoor air to warm up the room. When the outdoor ambient air temperature falls, the heating capacity of the unit might be reduced. Defrosting Operation Depend on the outdoor temperature, the operation occasionally stops to melt the frost on the outdoor unit. FAN – Air Circulation Operation (for Cooling Model only) When the room temperature reaches the set temperature, operation commences at Low airflow volume. It stops when the room temperature drops to 2°C below the set temperature. (It is useful when using a heater). Setting the Fan Speed Press 4 to select:- FAN–Low Fan Speed FAN–Medium Fan Speed FAN–High Fan Speed AUTO FAN–Automatic Fan Speed The speed of the indoor fan is adjusted automatically according to the operation. The indoor fan stops occasionally during cooling operation. Setting the Vertical Airflow Direction Press 5 or 6 to select:- Cooling ModelSetting the Horizontal Airflow Direction Use this air conditioner under the following conditions: Cooling Model Adjust it manually Notes If the unit is not going to be used for an extended period of time, turn off the main power supply. If it is left at the ON position, approximately 2.5 W of electricity will be used even if the indoor unit has been turned off with the remote control. If operation is stopped, then restart immediately, the unit will resume operation only after 3 minutes.Heat Pump Model DBT: Dry Bulb Temp WBT: Wet Bulb Temp Maximum Temperature Minimum TemperatureWBT 23 11DBT 43 16WBT 26 11Indoor OutdoorUnit in °C DBT 32 16 DBT: Dry Bulb Temp WBT: Wet Bulb Temp Maximum Temperature-Cooling (Maximum Temperature-Heating) Minimum Temperature-Cooling (Minimum Temperature-Heating)DBT 32 (30) 16 (16)WBT 23 (-) 11 (-)DBT 43 (24) 16 (-5)WBT 26 (18) 11 (-6)IndoorOutdoorUnit in °C 36° 36°61° COOL / DRY Operation AUTO FAN Operation AUTO SETTING THE TIMEREnsure that the current time is correct before setting the timer. The timer cannot be set if the time display is flashing. ON-TIMER Operation To start the air conditioner operation automatically. Press 1 to set the operation. Press 2 to increase or decrease the time. Then press 3. To cancel this operation, press 4. OFF-TIMER Operation To stop the air conditioner operation automatically. Press 5 to set the operation. Press 2 to increase or decrease the time. Then press 3. To cancel this operation, press 4. Timer Mode Operation Details When the ON-Timer is set, operation will start before the actual set time. This is to enable the room temperature reaches the set temperature at the set time. Once the ON/OFF Timer is set, operation will start/ stop at the set time everyday. The current time is not displayed when the timers are set. When both timers are used together, the TIMER mode indicator on the indoor unit remains lit even when the operation is stopped by the OFF-TIMER. CONVENIENCE OPERATIONPowerful Mode Operation To obtain the set temperature quickly. Press 6. *Powerful mode indicator (orange) on the indoor unit will light up. *Powerful mode will operate for 15 minutes only. To cancel this operation, press once more. Powerful Mode Operation Details The changes of the temperature and airflow volume are automatic. The remote control display remains unchanged. If operation mode button is pressed, powerful operation will be cancelled. During FAN – Air circulation operation, the powerful operation are not available. (cooling model only)Quiet Mode Operation To provide quiet operation. Press 7. *Quiet mode indicator on the indoor unit will light up. To cancel this operation, press once more. Operation Details Air flow sound will reduce during operation. Ionizer Mode Operation Produce negative ion for fresh air. Press 8. *Ion mode indicator on the indoor unit will light up. To cancel this operation, press once more. Operation Details Air conditioner ON: Provide negative ion during operation. Air conditioner OFF: Provide negative ion with FAN operation. If blinking, press 8 twice. If still blinking, please call service. CHECK AUTO AUTO HEAT DRY FANCOOL FA NAUTO RESETCLOCK MODEPOWERFULQUIET FAN SPEEDAIR SWING OFFCANCELONSET12 3 TIMER OFF/ON AUTOMANUAL3 6 41 7 5 2 8 Airflow volume Super High Automatic Powerful Mode Operation COOL / DRY HEAT (for Heat Pump model only)Temperature 3°C lower than set temp. 3°C higher than set temp. Heat Pump Model COOL,DRY,–> 15 minutes in advance HEAT, AUTO–> 30 minutes in advance Cooling Model COOL,DRY,–> 15 minutes AUTO in advance 41 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
Pre-season InspectionIs the discharged air cold/warm? Operation is normal if 15 minutes after the start of operation, the difference between the air intake and outlet vents temperature is:- Are the air intake or outlet vents of the indoor or outdoor units obstructed? Are the remote control batteries weak? If the remote control display appears weak, replace the batteries. When the Air Conditioner is Not Used for an Extended Period of Time 1To dry the internal parts of the indoor unit, operate the unit for 2 - 3 hours using:- 2Turn off the power supply and unplug. Note: If the unit is not switched off by the remote control, it will start operating when you plug in (because the unit is equipped with Auto Restart Control). 3Remove the remote control batteries. Recommended InspectionAfter used over several seasons, the unit will become dirty and thus decreases the unit’s performance. Depending on the operation conditions, a dirty unit may produce odour and dust may pollute dehumidification system. Therefore, a seasonal inspection is recommended in addition to regular cleaning. (Consult an authorized dealer). CARE AND MAINTENANCE Cleaning the Indoor Unit and Remote Control Wipe gently with a soft, dry cloth. Do not use water hotter than 40˚C or polishing fluid to clean the unit. Cleaning the Air Filter(Recommendation:- If the unit is operated in a dusty environment, clean the filters every two weeks, continuous use of this dirty filters will reduce cooling or heating efficiency) 1Remove dirt using a vacuum cleaner.2Wash back of the air filter with water.3If badly soiled, wash it with soap or a mild household detergent. 4Let it dry and reinstall it. Be sure the “FRONT” mark is facing you. *Damaged air filter. Consult the nearest authorized dealer. Part No.: CWD001047. Do not use benzene, thinner, scouring powder or clothes soaked in caustic chemical to clean the unit. Cleaning the Front Panel(Must be removed before washing)1Raise the front panel higher than the horizontal and pull to remove it. 2Gently wash with water and a sponge. Do not press the front panel too hard when washing. When use kitchen cleaning fluid (neutral detergent), rinse thoroughly. Do not dry the front panel under direct sunlight. 3To fix the front panel, raise the front panel horizontally, match the protruding portion on the indoor unit to the fulcrum and push into place. Air Purifying Filters Triple Deodorizing Filter Absorb odours produced by wall paper, construction material and living environment. Reusable. Vacuum, place under direct sunlight for 6 hours and fit it back in place. (Recommended: every 6 months) Catechin Air Purifying Filter The filter is coated with catechin to prevent growth of bacteria and viruses. Reusable. Vacuum and fit it back in place (Recommended: every 6 months) Recommended to change these filters every 3 years. Do not reuse damaged filters. Consult the nearest authorized dealer to purchase a new filter. Catechin Air Purifying Filter No.: CZ-SF70P Triple Deodorizing Filter No.: CZ-SFD72P If you operate the air conditioner with dirty filters:- –Air is not purified –Cooling or heating capacity decreases –Foul odour is emitted Heat Pump Model COOL –> 8°C or above HEAT –> 14°C or above Cooling Model COOL –> 8°C or above Heat Pump Model COOL operation with 30°C set temperature Cooling Model FAN operation Fulcrum Protruding portion on indoor unit 2Remove the air filters 1Raise the front panel Catechin Air Purifying FilterTriple Deodorizing Filter HELPFUL INFORMATION Auto Operation Button Automatic Operation If the remote control fails to function or has been misplaced, press the Auto Operation button to start the Automatic operation. The Automatic operation will be activated immediately once the Auto operation button is pressed. However, temperature cannot be adjusted in this operation. The power indicator on the indoor unit will blink until the operation mode is selected automatically. To cancel this operation, press once more. Remote Control Signal Receiving Sound To switch off the beep (Signal Receiving Sound), press the Auto Operation button for 10 seconds continuously or longer. “Beep”, “beep” sound will be heard at the tenth seconds. Note:“Beep” sound will be heard at the fifth seconds; However please press continuously until you heard “beep”, “beep” sound. Repeat the above steps if you want to switch on the Signal Receiving Sound. (This is for Servicing purposes only) Note: If you press this button continuously for 5 to 10 seconds, Test Run operation will be performed. A “beep” sound will be heard at the fifth seconds indicating the Test Run starts to operate.Auto Restart Control If power is resumed after a power failure, the operation will restart automatically after 3 - 4 minutes. Operation will be restarted automatically under the previous operation mode and airflow direction when power is resumed as the operation is not stopped by the remote control. Timer Setting When power failure occurs, the timer setting will be cancelled. Once power is resumed, reset the timer. Thunder and Lightning This air conditioner is equipped with a built-in surge protective device. However, in order to further protect your air conditioner from being damaged by abnormally strong lightning activity, you may switch off the main power supply and unplug from power socket. ENERGY SAVING AND OPERATION HINTS Setting the Temperature Approximately 10% of electricity can be saved. Set the temperature higher or lower than the desired temperature. Cooling Model Cooling Operation : 1°C higher Heat Pump Model Cooling Operation : 1°C higher Heating Operation : 2°C lower Air Filters and Air Purifying Filters Clean the air filters every 2 weeks and the Air Purifying Filters every 6 months. Dirty filters may reduce cooling or heating efficiency. Keep All Doors and Windows Closed Otherwise, cooling or heating performance will be reduced and electricity cost is wasted. Outdoor Unit Do not block the air outlet vents. Otherwise, it will lower the cooling or heating performance. Timer Mode To prevent wastage of electricity, use Timer when going out. Avoid Direct Sunlight Keep curtains or drapes closed to avoid direct sunlight during cooling or heating operation. Raise the front panel and press 42 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
TROUBLESHOOTING Normal Operation Is it okay? Air conditioner has been restarted, but does not operate for 3 minutes. A sound like water flowing can be heard. It seems that fog is coming out from the air conditioner. The room has a peculiar odour. During Automatic Vertical Airflow setting, indoor fan stops occasionally. The outdoor unit emits water or steam. (For Heat Pump Model only) Operation stops for about 12 minutes during heating (The power indicator blinks). (For Heat Pump Model only) During heating operation, indoor fan may run at on and off conditions. Abnormal Operation Is it okay? •The air conditioner does not operate. •Air conditioner produces loud noise during operation. •The air conditioner does not cool or warm effectively. •Remote control / display doesn’t workThis is the answer This is to protect the air conditioner. Wait until the air conditioner begins to operate. This is the sound of refrigerant flowing inside the air conditioner. Condensation occurs when the airflow from the air conditioner cools the room. This may be a damp smell emitted by the wall, carpet, furniture or clothing in the room. This is to remove smell emitted by the surroundings. In COOL/DRY operation, moisture in the air condenses into water on the cool surface of outdoor unit piping that causes dripping. This is to melt the frost which has accumulated on the outdoor unit (defrosting operating). This will take no longer than about 12 minutes. Water drips from the outdoor unit. Wait until this operation ends. (the power indicator will light up). (Frost will accumulates on the outdoor unit when the outdoor temperature is low and humidity is high.) This is to prevent undesired cooling effect during heating operation. Please check Has the circuit breaker been tripped? Has the power plug been removed from the wall outlet? Is the timer being used correctly? Is the installation work slanted? Is the front grille closed properly? Has the temperature been set incorrectly? Are the filters dirty? Are the intake or outlet vents of the outdoor unit obstructed? Are all windows and doors closed? Batteries empty? Batteries correctly inserted (+) and (–)? Call the Dealer Immediately If the following conditions occur, turn off and unplug the main power supply, and then call the dealer immediately. •Abnormal noise is heard during operation. •Water or foreign material gets into the remote control by mistake. •Water leak from the indoor unit. •Switches or buttons do not operate properly. •The circuit breaker switches off frequently. •Power supply cord and plug become unusually warm. 43 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
10 Installation Instructions Required tools for Installation Works 1.Philips screw driver5.Spanner9.Gas leak detector13.Multimeter 2.Level gauge6.Pipe cutter10.Measuring tape14.Torque wrench 18 N.m (1.8 kgf.m) 42 N.m (4.2 kgf.m) 55 N.m (5.5 kgf.m) 3.Electric drill, hole core drill (ø70 mm)7.Reamer11.Thermometer15.Vacuum pump 4.Hexagonal wrench (4 mm)8.Knife12.Megameter16.Gauge manifold 10.1. Safety Precautions • Read the followin g“SAFET Y PRECA UTIONS”carefully before installation. • Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed. • The caution items stated here must be followed because these important contents are related to safety. The meaning of each indication used is as below. Incorrect installation due to ignoring of the instruction will cause harm or damage, and the seriousness is classified by the followin g indications. This indication shows the possibility of causing death or serious injury. This indication shows the possibility of causing injury or damage to properties only. The items to be followed are classified by the symbols: Symbol with background white denotes item that is PROHIBITE D from doing. • Carry out test running to confirm that no abnormality occurs after the installation. Then, explain to user the operation, care and maintenance as stated in instructions. Please remind the customer to keep the operating instructions for future reference. 1.Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire. 2.Install according to this installation instruction strictly. If installation is defective, it will cause water leakage, electrical shock or fire. 3.Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water leakage, fire or electrical shock. 4.Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or installation is not properly done, the set will drop and cause injury. 5.For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 6.Use the specified cable (1.5 mm2) and connect tightly for indoor/outdoor connection. Connect tightly and clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection. 7.Wire routing must beproperly arranged so that control board cover is fixed properly. If control board cover is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock. 8.When carrying outpiping connection, take care not to let air substances other than the specified refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure in the refrigeration cycle, explosion and injury. 9.Whenconnecting the piping, do not allow air or any substances other than the specified refrigerant (R410A) to enter the refrigeration cycle. Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion and injury. (Only for models: CS/CU-V7CK, V9CK, V12CK,W7CK, W9CK, W12CK) 10. • W hen connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and injury. Use only R410A materials. • Thickness of copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm. • It is desirable that the amount of residual oil is less than 40 mg/10 m (Only for models: CS/CU-V7CK, V9CK, V12CK,W7CK, W9CK, W12CK). 11.Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock. 44 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
1.The equipment must be earthed. It may cause electrical shock if grounding is not perfect. 2.Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 3.Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. 1.Selection of the installation location. Select a installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance. 2.Power supply connection to the room air conditioner. Connect the power supply cord of the room air conditioner to the mains using one of the following method. Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries, permanent connection of this room air conditioner to the power supply is prohibited. 1. Power supply connection to the receptacle using a power plug. Use an approved 15A/16A power plug with earth pin for the connection to the socket. 2. Power supply connection to a circuit breaker for the permanent connection. Use an approved 16A circuit breaker for the permanent connection. It must be a double pole switch with a minimum 3 mm contact gap. 3.Do not release refrigerant. Do not release refrigerant during piping work for installation, reinstallation and during repairing a refrigeration parts. Take care of the liquid refrigerant, it may cause frostbite. 4.Installation work. It may need two people to carry out the installation work. 5.Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc. 45 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
Applica ble piping kit CZ-3F5, 7AEN (C7CK, C9CK, A7CK, A9CK, V7CK, V9CK, W7CK, W9CK) CZ-4F5, 7, 10AN (C12CK, A12CK , V12CK , W12CK) SELEC T THE BEST LOCATION INDOOR UNIT • There should not be any heat source or steam near the unit. • There should not be any obstacles blocking the air circulation. • A place where air circulation in the room is good. • A place where drainage can be easily done. • A place where noise prevention is taken into conside ration. • Do not install the unit near the door way. • Ensure the spaces indicate d by arrows from the wall, ceiling, fence or other obstacles. • Recommended installation height for indoor unit shall be at least 2.3 m. OUTDOOR UNIT • If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the conden ser is not obstructed. • There should not be any animal or plant which could be affected by hot air discharged. • Keep the spaces indicate d by arrows from wall, ceiling, fence or other obstacles. • Do not place any obstacles which may cause a short circuit of the discharged air. • If piping length is over the common length, addition al refrigerant should be added as shown in the table. Indoor/Outdoor Unit Installation Diagram • This illustration is for explana tion purposes only. The indoor unit will actually face a differen t way. Attached access ories 46 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
10.2.1. SELECT THE BEST LOCATION (Refer to“Select the best location” section) 10.2.2. HOW TO FIX INSTALLATION PLATE The mounting wall is strong and solid enough to prevent itfrom the vibration. The centre of installation plate should be at more than 450 mm at right and left of the wall. The distance from installation plate edge toceiling should more than 67 mm. From installation plate left edge to unit’s left side is 47 mm. From installation plate right edge to unit’s right is 73 mm. : : :For left side piping, piping connection for liquid should be about 14 mm from this line. For left side piping, piping connection for gas should be about 56 mm from this line. For left side piping, piping connecting cable should be about 785 mm from this line. 1. Mount the installation plate on the wall with 5 screws or more. (If mounting the unit on the concrete wall conside r using anchor bolts.) • Alwaysmount the installation plate horizontally by aligning the marking-off line with the thread and using a level gauge. 2. Drill the piping plate hole withø70 mm hole-core drill. • Line according to the arrows marked on the lower left and right side of the installation plate. The meeting point of the extended line is the centre of the hole. Anothe r method is by putting measuring tape at position as shown in the diagram above. The hole centre is obtaine d by measuring the distance namely 150 mm and 125 mm for left and right hole respectively. • Drill the piping hole at either the right or the left and the hole should be slightly slanted to the outdoor side. 10.2.3. TO DRILL A HOLE IN THEWALL AND INSTALL A SLEEVE OF PIPING 1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall. CautionWhen thewall is hollow, please be sure to use the sleeve for tube ass’y to prevent dangers caused by mice biting the connecting cable. 4. Finish by sealing the sleeve with putty or caulking compound at the final stage. 10.2.4. INDOOR UNIT INSTALLATION 1. For the right rear piping 2. For the right and right bottom piping 10.2. INDOOR UNIT 47 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
3. For the embedded piping (This can be used for left rear piping & left bottom piping also.) 48 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
10.2.5. CONNECT THECABLE TO THE INDOOR UNIT 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connec ting cable between indoor unit and outdoor unit shall be approved polychl oroprene sheathed 3 (C7CK, C9CK, C12CK , V7CK, V9CK, V12CK ) or 5 (A7CK, A9CK, A12CK ,W7CK, W9CK, W12CK)×1.5 mm 2flexible cord, type designa tion 245 IEC 57 or heavier cord. • Ensure the color of wires of outdoor unit and the terminal Nos. are the same to the indoor’s respectively. • Earth lead wire shall be longer than the other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from the anchorage. • Secure the cable onto the control board with the holder (clamper). INSTALLATION OF AIR PURIFYING FILTERS 1. Open the front panel. 2. Remove the air filters. 3. Put air purifyin g filters (left) and triple deodorizing filter (right) into place as shown in illustration below. 49 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5
HOW TO TAKE OUT FRONT GRILLE Please follow the steps below to take out front grille if necessary such as when servicing. 1. Set the vertical airflow direction louver to the horizontal position . 2. Slide down the two caps on the front grille as shown in the illustration below, and then remove the two mounting screws. 3. Pull the lower section of the front grille towards you to remove the front grille. Whenreinstalling the front grille, first set the vertical airflow direction louver to the horizontal position and then carry out above steps 2 - 3 in the reverse order. AUTO SWITCH OPERATION The below operations will be performed by pressing the “AUTO”switch. 1. AUTO OPERA TION MODE The Auto operation will be activated immediately once the Auto Switch is pressed. 2. TEST RUN OPERA TION (FOR PUMPDOWN/SERV ICING PURPOSE) The Test Run operation will be activated if the Auto Switch is pressed continuously for more than 5 sec. to below 10 sec.. A“pep”sound will occur at the fifth sec., in order to identify the starting of Test Run operation 3. REMOTE CONTROLLER RECEIVING SOUND ON/OFF The ON/OFF of Remote Controller receiving sound can be change over by pressing the“AUTO”Switch continuously for 10 sec. and above. A“pep”,“pep”sound will occur at the tenth sec., in order to indicate the“ON/OFF”change over of remote control receiving sound. 10.3. OUTDOOR UNIT 10.3.1. SELECT THE BEST LOCATION (Refer to“Select the best location” section) 10.3.2. INSTALL THE OUTDOOR UNIT • After selecting the best location , start installation according to Indoor/Outdoo r Unit Installation Diagram. 1. Fix the unit on concrete or rigid frame firmly and horizontally by bolt nut. (ø10 mm). 2. When installin g at roof, please conside r strong wind and earthquake. Please fasten the installation stand firmly with bolt or nails. 10.3.3. CONNECTING THE PIPING Connecting The Piping To Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connec t the piping • Align the center of piping and sufficie ntly tighten the flare nut with fingers. • Further tighten the flare nut with torque wrench in specifie d torque as stated in the table. MODELPiping size (Torque) GasLiquid C7CK, C9CK, A7CK, A9CK, V7CK, V9CK, W7CK, W9CK3/8”(42 N.m)1/4”(18 N.m) C12CK, A12CK, V12CK,W12CK1/2”(55 N.m)1/4”(18 N.m) Connecting The Piping To Outdoor Unit Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (located at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specifie d torque as stated in the table. 50 CS-W7CKP CU-W7CKP 5 / CS-W9CKP CU-W9CKP 5 / CS-W12CKP CU-W12CKP5