Panasonic CS-KE18NB4U Installation Manual
Contents
1. Terminal Se Single phase 230 208V 60HZ Power supply B CAUTION rg nding Fig 7b q D MORR e e qe 9 eC e Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram The indoor unit draws its power from the outdoor unit Me e Do not run wiring for antenna signal or power A disconnect switch may be required by lines of television radio stereo telephone secu national or local codes rity system or intercom any closer than 3 3 1 m from the power cable and wires between the indoor and outdoor units Electrical noise may E affect the operation Always comply with national and local code requirements 13 3 9 Wiring Instructions for Inter unit Connections 1 Remove the 1 screw from the terminal cover then open the cover Be careful that the cover does not fall 2 Remove the 3 screws from the power box cover then open the cover Be careful that the cover does not fall 3 Use the screw to securely fasten the ground wire from the outdoor unit in place 4 Remove the transparent plastic cover from the 3P terminal plate 5 While viewing the wiring diagram connect the inter unit and power supply line to terminals 1 2 and 3 on the 3P terminal plate 6 Remount the transparent plastic cover onto the 3P terminal plate 7 Be sure to use the clamping strap to fasten the wires in place 8 Tighten the screws to remount the terminal a2. Reset L EJ in Fig 39
3. 1 4 6 35 mm 21 32 17 mm Approx 120 160 Ibs in 140 180 kgf cm 3 8 9 52 mm 7 8 22 mm 1 2 12 70 mm 1 1 32 26 mm Approx 300 360 Ibs in 340 420 kgf cm Approx 430 480 Ibs in 490 550 kgf cm Insulation EN 5 8 15 88 mm 1 5 32 29 mm Approx 590 710 Ibs in 680 820 kgf cm 5 5 Insulation of Refrigerant Tubing IMPORTANT To prevent heat loss and wet floors due to dripping of con densation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a minimum 5 16 8 mm Fig 22 Taping the flare nuts Wind the insulation tape around the flare nuts at the tube connections Secondly cover up the tubing connec tions with the flare insulation 1 8 T3 supplied Then wind the other flare insulation 3 16 T5 supplied Finally fasten the insulation at both ends with the sup plied vinyl ties Fig 23 Insulation material The material used for insulation must have good insula tion characteristics be easy to use be age resistant and must not easily absorb moisture CAUTION After a tube has been insulat ed never try to bend it into a narrow curve because it can cause the tube to break or crack Flare nut Thickness Min min 5 16 5 16 8 mm 8 mm Fig 22 Insulation tape supplied Flare insulation 3 16 T5 supplied LE insulation 1 8 T3 supplie
4. 10 cm Air intake S Cushion rubber 3 How to Install the Indoor Unit Hole in anchor Hole in plug Concrete Insert 3 1 Preparation for Suspending ZEN UAM WENN This unit uses a drain pump Use a carpenter s level to le Yat check that the unit Is level 3 2 Suspending the Indoor Unit IK 1 Fix the suspension bolts securely in the ceiling using e za a locallv purchased the method shown in the diagrams bv attaching Fig 6 1 them to the ceiling support structure or bv anv other 23 5 8 600mm method that ensures that the unit will be securely Ceiling opening dimensions and safely suspended Fig 6 1 21 1 32 534mm Suspension bolt pitch Y Follow the diagram to make the holes in the ceiling e Determine the pitch of the suspension bolts using the supplied full scale installation diagram The dia gram shows the relationship between the positions of the suspension fitting unit and panel Fig 6 2 Suspension bolt pitch Ceiling opening dimensions 3 3 Placing the Unit Inside the Ceiling 1 Be sure to remove the fan protection 4pcs for 22 S 8 575m raids transportation before hanging up the indoor unit outer dia af 1 32 o 26nn 2 When placing the unit inside the ceiling determine the pitch of the suspension bolts using the supplied full scale installation diagram Fig 6 3 Tubing and wiring must be laid inside the ceiling when suspending the unit If the ceil
5. 1 1 Tools Required for Installation not supplied 1 Standard screwdriver 6 Sabre saw or key hole saw 11 Tube cutter 2 Phillips head screwdriver 7 Hacksaw 12 Tube flaring tool 3 Knife or wire stripper 8 Core bits 13 Torque wrench 4 Tape measure 9 Hammer 14 Adjustable wrench 5 Carpenter s level 10 Drill 15 Reamer for deburring 1 2 Accessories Supplied with Unit Table 1 Figure Q y Remarks EE temporarily For full scale Washer Ce suspending indoor Truss head screw one 4 installation unit from ceiling diagram For wide ae LI 8 T3 narrow tube cb ER O mm i unit amp E insulation PF e 15 l GOHBOOIOR 5 1 2 L140 ube connection For wide Insulation tape e 2 narrow tube Hose band 2 ELE as 3 32 T2 flare nut connection For flare drain Truss e Vinyl tie insulating Tapping screw 5 32x5 connection 4 mm Drain hose For drain tube C ushi bb Packed in the insulation LA ases T10 connection USMAN MPOST outdoor unit Remote a a controller ceiling panel cele Printed on diagram container box 1 3 Optional Copper Tubing Kit o mes head screw pp s Remote control holder Special screw 3 16 x 1 9 16 5x40mm e Use M10 or 3 8 for suspension bolts e Suspension bolts and nuts locallv purchased AAA alkaline battery Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narro
6. 77 Fig 9 E Solid wire i O Loop aJ x D N an Insulation Fig 10 E For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 3 8 10 mm and tightly twist the wire ends Figs 11 and 12 Using a screwdriver remove the terminal screw s on the terminal plate Y Using a ring connector fastener or pliers securely clamp each stripped wire end with a ring connector Fig 11 w Place the ring connector wire and replace and tighten the removed terminal screw using a screwdriver Fig 13 B Special washer Screw etajiet Twist wire ends RW P4 aii z tranded wire NT P Ring connector special washer So ki i _ i Wire Terminal plate Ring M connector 2 f m Wire Fig 11 Fig 12 Fig 13 4 How to Install the Outdoor Unit First refer to Section 2 Installation Site Selection Lock nut Cabinet 4 1 Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality For field wiring requirements please refer to your local electrical codes Make sure that the installation fully complies with all local and national regulations block 1 Remove access panel C Fig 14 2 Connect the inter unit and power supply line according to the drawing on the panel side corneum plate 3 Be sure to size each wire allowing approx 4
7. Fig 26 6 Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Therefore they must be purged completely e pressure in the system rises e operating current rises e cooling or heating efficiency drops e moisture in the air may freeze and block capillary tubing e water may lead to corrosion of parts in the refrigerant system B Air Purging with a Vacuum Pump for Test Run 1 Check that each tube both narrow and wide tubes between the indoor and outdoor units have been proper ly connected and all wiring for the test run has been completed Note that both narrow and wide tube service valves on the outdoor unit are kept closed at this stage Using an adjustable wrench or box wrench remove the valve caps from the service valve on both narrow and wide tubes Connect a vacuum pump and a manifold valve with pressure gauges to the service port on the wide tube service valve Fig 27 Clamp Insulated tubes Drain hose Apply putty here Fig 26 Indoor unit Outdoor unit k gt NV lt gt Ps SO Manifold valve O Exclusively for R410A VIN Pressure H an auge A ae 1 The service port on the wide tube service valve uses a Schrader core valve to access the refrigerant system The valve core is similar to those used in automobile tires Therefore be sure to use a vacuum hose connect
8. Indicator cover 3 6 2 Installing the Ceiling Panel 1 Hang the temporary latches on the inside of the ceil ing panel to the receptacle on the unit to temporarily attach the ceiling panel in place Fig 6 17 e The ceiling panel must be installed in the correct direction relative to the unit Align the REF PIPE and DRAIN marks on the ceiling panel corner with the correct positions on the unit 2 Align the panel installation holes and the unit screw holes Fig 6 18 3 Tighten the supplied special screws at the 4 panel installation locations so that the panel is attached tightly to the unit e Check that the wiring connectors are not caught between the unit and the ceiling panel 4 Check that the panel is attached tightly to the ceiling Fig 6 19 e Atthis time make sure that there are no gaps between the unit and the ceiling panel or between the ceiling panel and the ceiling surface e lithere is a gap between the panel and the ceiling leave the ceiling panel attached and make fine adjustments to the installation height of the unit to eliminate the gap with the ceiling e f the screws are not sufficiently tightened trouble such as that shown in the figure e f a gap remains between the ceiling surface and the ceiling panel even after the screws are tightened adjust the height of the unit again below may occur Be sure to tighten the screws securely Air leakage Air leakage from ceiling surface
9. Difference H Additional Refrigerant ft ft ft oz ft CS KE12NB41 0 16 CS KE18NB4UW 0 27 If total tubing length becomes 25 to 65 ft Max or 25 to 100 ft Max charge additional refrigerant R410A by 0 16 or 0 27 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical amp Service Manual 5 2 2 Outdoor Unit AVOID e heat sources exhaust fans etc Fig 3 e damp humid or uneven locations DO e choose a place as cool as possible e choose a place that is well ventilated e install in a location where at least two sides are unob structed so that the flow of air at the intake port or exhaust port is not blocked and so that sufficient space is ensured for maintenance to be carried out without trouble In general the top also must be unob structed Figs 4a and 4b e provide a solid base level concrete pad concrete block 4 x 1 4 10 x 40 cm beams or equal a mini mum of 4 10 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life Figs 5a and 5b CAUTION A solid base must not cover the hole of the bottom plate e install cushion rubber under unit s feet to reduce vibra tion and noise Fig 5c e use lug bolts or equal to bolt down unit reducing vibra tion and noise e install in a location where no antenna of a television or radio exists wi
10. LEES S Staining 4 0 Adjust so that there are no gaps Condensation water leakage Fig 6 20 10 D Press X N o NC NO Fig 6 16 Temporary latches Temporary latch 3 Fig 6 17 Refrigerant tubing joint Drainage check DRAIN mark Panel installation hole 4 locations Special screws Fig 6 18 Do not allow EE Ceiling surface Ceiling panel Fig 6 19 The height of the unit can be adjusted from the ceiling panel corner hole with the ceiling panel attached to an extent that does not affect the unit levelness the drain hose or other elements 3 6 3 Wiring the Ceiling Panel and the Indicator LJ Drain pipe side c C O 1 Remove the 2 screws from the control box cover then open the cover Be careful that the cover does not fall SS 2 Connect the 5P FLAP wiring connector from the ceiling MMA Control box panel to the connector on the control PCB in the control box ili l KEIN Refrigerant tube side Fig 6 21 H AOO 3 Connect the 7P IND and 4P RC wiring connector from the NETT indicator to the connectors on the control PCB in the control Power box box Fig 6 21 As to how to attach the indicator cover refer to Fig 6 23 4 Be sure to use the clamps to fasten the connector wires in place Fig 6 21 Fig 6 22 5 Tighten the 2 cover screws to C
11. it higher than 2 78 ft 850 mm above the bottom surface of the ceiling Doing so will result in water leakage Fig 6 7 e Do not use natural drainage e Do not install the pipe with an upward gradient from the connection port This will cause the drain water to flow backward and leak when the unit is not operating Fig 6 8 e Do not apply force to the piping on the unit side when connecting the drain pipe The pipe should not be allowed to hang unsupported from its connection to the unit Fasten the pipe to a wall frame or other support as close to the unit as possible Fig 6 9 e Provide insulation for any pipes that are run indoors Twist tie 4 vinyl ties supplied Drain hose insulation supplied Hard PVC pipe 7 equivalent to Position to O D 1 1 32 26mm fasten hose bands locally purchased Drain port aon Drain hose Supplied Hose band 2 bands supplied Fig 6 5 e Attach so that the hose band fastener is on the side of the drain port e Attach the hose bands so that each is approximatelv 3 16 5 mm to 15 16 25 mm from the end of the supplied drain hose of Air bleeder prohibited Fig 6 6 CAUTION Do not install an air bleeder as this mav cause water to sprav from the drain pipe outlet Fig 6 6 0 45 mal 1 aa Length of supplied drain hose 5 1 2 140mm Fig 6 7 1 ft 800mm or less 2 78
12. prevent abnormal heat genera tion and the possibility of fire do not place obstacles enclosures and grilles in front of or surround ing the air conditioner in a way that may block air flow AVOID e direct sunlight e nearby heat sources that may affect performance of the unit Se e areas where leakage of flammable gas may be expected places where large amounts of oil mist exist Mme iy DO e select an appropriate position from which every corner of the Fig 1 room can be uniformly cooled e select a location that will hold the weight of the unit select a location where tubing and drain hose have the S shortest run to the outside S 8 E E e allow room for operation and maintenance as well as unre 2 5 8 e install the unit within the maximum elevation difference H H above or below the outdoor unit and within a total tubing length Fig 2 L from the outdoor unit as detailed in Table 3 and Fig 2 e install the indoor unit more than 3 3 1 m away from any CAUTION l CAUTION antenna or power lines or connecting wires used for television CAUTION radio telephone security system or intercom Electrical noise Air delivery will be degraded if the distance from any of these sources may affect operation from the floor to the ceiling is greater than 10 ft 3 m Table 3 Max Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of Model Length at Shipment Length L
13. 10 cm longer than the required length for wiring Store excess wiring inside the cabinet 4 When connections are completed check that all connections are correct as shown in the wiring A n system diagram on panel side Plug Inter unit Power supply Conduit Conduit 0 0 8 Access panel C b Be sure to ground the unit according to your local codes Fig 14 15 5 Refrigerant Tubing 5 1 Use of the Flaring Method Manv of the conventional split svstem air conditioners emplov the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the copper tubes are flared at each end and connected with flare nuts 5 2 Flaring Procedure with a Flare Tool 1 Cut the copper tube to the required length with a tube cutter It is recommended to cut approx 12 to 20 30 to 50 cm longer than the tubing length you estimate 2 Remove burrs at the end of the copper tube with a tube reamer or file This process is important and should be done carefully to make a good flare Fig 15 When reaming hold the tube end downward and be sure that no copper scraps fall into the tube Fig 16 3 Remove the flare nut from the unit and be sure to mount it on the copper tube 4 Make a flare at the end of copper tube with a flare tool Figs 17 and 18 Use RIDGID or equivalent A good flare should have the following characteristics e inside surface is gl
14. APPENDIX B INSTALLATION INSTRUCTIONS CS KE12NB41 amp CZ 18BT1U CU KE12NK1 CS KE18NB4UW amp CZ 18BT1U CU KE18NKU 852 6 4190 577 00 2 A 2 INSTALLATION INSTRUCTIONS Split Svstem Air Conditioner This air conditioner uses the refrigerant R410A Panasonic Contents External diameter of service port R410A 5 16 Page IMPORTANT Model Combinations Please Read Before Starting 2 l GENERAL iii ika kai iben ib et 4 Combine indoor and outdoor units only as listed 1 1 Tools Required for Installation not supplied below 1 2 Accessories Supplied with Unit 1 3 Optional Copper Tubing Kit Model No 1 4 Type of Copper Tube and Insulation Material i 1 5 Additional Materials Required for Installation Indoor Unit Outdoor Unit CS KE12NB41 CU KE12NK1 2 INSTALLATION SITE SELECTION 5 Power Source 2 1 Indoor Unit 60 Hz single phase 115 V 2 2 Outdoor Unit CS KE18NB4UW CU KE18NKU 3 HOW TO INSTALL THE INDOOR UNIT 7 Preparation for Suspending Suspending the Indoor Unit Placing the Unit Inside the Ceiling Installing the Drain Piping Checking the Drainage How to Install the Ceiling Panel Wiring Instructions Hecommended Wire Length and Diameter Wiring Instructions for Inter unit Connections Power Source 60 Hz single phase 230 208 V Ceiling Panel CZ 18BT1U Q Qo L LI 9 WW WW OOMONDORWONM W TO INSTALL THE OU
15. TDOOR UNIT 15 Wiring Instructions for the Outdoor Unit gt PI 0O e J m FRIGERANT TUBING 16 Use of the Flaring Method Flaring Procedure with a Flare Tool Caution before Connecting Tubes Tightly Connecting Tubing between Indoor and Outdoor Units Insulation of Refrigerant Tubing Taping the Tubes Finishing the Installation ooo S uo ogg UP E 6 AIR PURGING cem 18 E Air Purging with a Vacuum Pump for Test Run ll Basic Functions of the Service Valves E Pump Down ll Service Valve Connections 7 REMOTE CONTROLLER INSTALLATION POSITION I U 22 7 1 Mounting on a Wall 8 ADDRESS SWITCH 23 8 1 Address Setting of the Remote Controller 85264190577002 2011 CV6233187839 IMPORTANTI Please Read Before Starting This air conditioning svstem meets strict safetv and operating standards As the installer or service person it is an important part of vour job to install or service the svstem so it operates safelv and efficientiv For safe installation and trouble free operation vou must e Carefully read this instruction booklet before beginning e Follow each installation or repair step exactly as shown Observe all local state and national electrical codes e Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard or unsafe practi
16. and hold the ACL Reset button with a pointed object such as the tip of a pen After 5 seconds release the ACL button first then release the HIGH POWER and 1HR TIMER but tons oP 1 Test Run appears blinking in the remote controller clock display area 4 Each time the 1HR TIMER button is pressed the display changes as shown below Press this but ton 2 times to change the display to oP 7 Address setting Fig 39 ua lestrunmode p 3 Self diagnostic mode w wu X vo t it Q XV P a ta 1 Address setting mode o OP 7 has now been selected for address setting 9 Press the ON OFF operation button on the remote controller Fig 39 Check that the beep signal received sound is heard from the second indoor unit approximately 5 times The sound you hear is the signal that the remote controller address has been changed 7 Finally press the remote controller ACL Reset button to cancel the blinking oP 7 display Fig 39 Changing of the second remote controller address is now completed 23 ACL button OOOO AIR CONDITIONER 39 6 sess OO SETTEMP SJ SA S Hr BILG ON amp GY OFFS FO AM 74 1 PM LEE LL es ON OFF operation button HIGH POWER EMP 1HR TIMER button FANSPEED MODE FLAP NIGHT SETBACK ON TIMER OFFS A A ww co c CANCEL Glock O SENSOR C4P F 12H4P24H ADR ACL Ev A JJIEEEHO ACL
17. ce which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can result in personal injury or prod uct or property damage WARNING If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require help for a special problem contact our sales service outlet or your certified dealer for additional instructions In Case of Improper Installation The manufacturer shall in no way be responsible for improp er installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS When Wiring 000000000090000000000009000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009 ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked Highly dangerous electrical voltages are used in this system Carefully refer to the wiring diagram and these instructions when wiring Improper connections and inadequate grounding can cause accidental injury or death Ground the unit following local electrical codes Connect all wiring tightly Loose wiring may cause over heating at connection points and a possible fire hazard To prevent possibl
18. cm2 fully close the wide tube valve stem Then quickly stop the unit b Disconnect all gauges and hoses and replace the valve caps as they were before B Service Valve Connections a Temporary connection Screw in 3 5 turns by hand Fig 34 b Tofasten the flare nuts apply specified torque as Table 8 and Fig 35 Table 8 i Fig 34 Tube Dia Nut Tightening Torque 1 4 6 35 mm 21 32 17 mm Approx 120 160 Ibs in 140 180 kgf cm 3 8 9 52 mm 7 8 22 mm Approx 300 360 Ibs in 340 420 kgf cm 1 2 12 70 mm 1 1 32 26 mm Approx 430 480 Ibs in 490 550 kgf cm 5 8 15 88 mm 1 5 32 29 mm Approx 590 710 Ibs in 680 820 kgf cm Torque wrench 7 Remote Controller Installation Position Fig 35 The remote controller can be operated from either a 3 non fixed position or a wall mounted position Be sure to tighten the flare nut To ensure that the air conditioner operates correctly do CAUTION g using the prescribed torque If the not install the remote controller in the following places nut is over tightened refrigerant In direct sunlight leakage may occur Behind a curtain or other place where it is covered More than 26 8 m away from the air conditioner In the path of the air conditioner s airstream Where it may become extremely hot or cold Where it may be subject to electrical or magnetic interference Where there is an obstacle b
19. d ea inihi SPR NC Tube insulation not supplied Vinyl tie supplied Fig 23 Drain hose insulation Drain pipe and insulation Refrigerant tubing and vinyl tie not supplied and insulation supplied not supplied Drain hose ana hose band Insulation tape supplied supplied P PP Vinyl tie Supplied Flare insulation Supplied The procedure used for installing the insulation for both wide and narrow tubes are the same Fig 24 Never grasp the drain or refrigerant connecting out lets when moving the unit 17 5 6 Taping the Tubes 1 Atthis time the 2 refrigerant tubes and electrical wire if local codes permit should be taped together with armoring tape The drain hose may also be included and taped together as 1 bundle with the tubing Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall As you wrap the tubing overlap half of each previous tape turn Fig 25 3 Clamp the tubing bundle to wall using 1 clamp approx every 47 120 cm Do not wind the armoring tape too tightly since this will decrease the heat insulation effect Also be sure the con densation drain hose splits away from the bundle and drips clear of the unit and the tubing 5 7 Finishing the Installation After finishing insulating and taping over the tubing use sealing putty to seal off the hole in the wall to prevent rain and draft from entering
20. d 0 193 psi 10 mmHg abs 6 With the hex wrench turn the valve stem on the narrow tube service valve counter clockwise by 90 degrees 1 4 turn for 10 seconds and then turn the stem clockwise to close it again Fig 28 CAUTION Be sure to completely insert the hex wrench before attempting to turn the valve 7 Leak test all joints at the tubing both indoor and outdoors with soapy water Bubbles indicate a leak Tighten the joint more when leaks then check if there is no leak Be sure to wipe off the soap with a clean cloth 8 With the hex wrench turn the wide tube service valve stem counter clockwise to fully open the valve 9 Turn the narrow tube service valve stem counter clockwise to fully open the valve 10 Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure Then remove the hose This may cause the refrigerant gas to CAUTION leak In order to avoid this take off the hose quickly 11 Fasten the valve cap on the wide tube service port securely with an adjustable wrench or box wrench Next mount the valve cap on the service valve and tighten it to 170 Ibs in 200 kgf cm with a torque wrench This process is very important to prevent gas from leaking from the system 12 Test run the air conditioner See next page 13 While the air conditioner is running apply liquid soap to check for any gas leaks around the service valves or caps 14 If there is
21. e When Servicing Turn the power OFF at the main power box mains before opening the unit to check or repair electrical parts and wiring Keep your fingers and clothing away from any moving parts Clean up the site after you finish remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced The illustrations are based on the typical appearance of a standard model Consequently the shape may differ from that of the air conditioner that you are installing Others Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas Do not touch the air inlet or the sharp aluminum fins of the outdoor unit You may get injured X Do not sit or step on the unit you may fall down accidentally Do not stick any object into the FAN CASE You may be injured and the unit may be damaged 1 General This booklet briefly outlines where and how to install the air conditioning system Please read over the entire set of instruc tions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning
22. e National Electric Code ANSI NFPA70 12 Table 4 Cross Sectional A B A Power Supply Wiring Length ft C Control E Area AWG B Power Line Length ft Line Length tt Fuse or Circuit Breaker Capacity 14 CU KE12NK1 131 Max 230 Max 65 Max CU KE18NKU 131 Max 230 Max 100 Max AWG American Wire Gauge WIRING SYSTEM DIAGRAM CU KE12NK1 INDOOR UN Disconnect switch Field supply OUTDOOR e Be sure to comply with local codes on running the NIT wire from the indoor unit to the outdoor unit size of wire and wiring method etc e Each wire must be firmly connected 7 ee e No wire should be allowed to touch refrigerant tubing the compressor or any moving part WARNING e Toavoid the risk of electric shock each air con ditioner unit must be grounded e For the installation of a grounding device please observe local electrical codes e Grounding is necessary especially for units using inverter circuits in order to release charged electricity and electrical noise caused by high tension Otherwise electrical shock may occur e Place a dedicated ground more than 7 2 m away from other grounds and do not have it shared with other electric appliances Terminal Single phase 115V 60HZ Power supply B Grounding line Fig 7a CU KE18NKU Disconnect switch Field supply INDOOR UN OUTDOOR NIT
23. e hazards from insulation failure Q5 the unit must be grounded When Transporting 00000000000000000000000000000090000000000000000000000000000000000000000000000000000000000000000000000900000000000000000000000000 Be careful when picking up and moving the indoor and out door units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin alu minum fins on the air conditioner can cut your fingers When Installing 009099900090909900900999900909090090090000009090000090909000000900009009909000090909009009090000909909090009090000990909090009099000009900900909009000090990900099 Select an installation location which is rigid and strong enough to support or hold the unit and select a location for easy maintenance In a Ceiling or Wall Make sure the ceiling wall is strong enough to hold the unit S weight It may be necessary to construct a strong wood or metal frame to provide added support lIn a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors Keep the fire alarm and the air outlet at least 1 5 m away from the unit In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid level foundation for the outdoor unit This prevents water damage and abnormal vibration In an Area with High Winds Securely anchor the outdoor unit down with bolts a
24. eiling panel Indoor unit Indicator 7P IND and 4P RC 5P FLAP wiring connector wiring connector close the cover e Check that the wiring connectors are not caught between the electrical component box and the cover e lf the indicator connector is not securely connected the remote controller signal will not be received e lf the connectors are not connected the auto flap will not operate Be sure to connect them securely f al KLERU 1 ALES 5P FLAP wiring connector 7 A RYA aL Toy X 7P IND and 4P RC wiring connector Indicator Control box Pass the wiring connectors through the clamps to fasten them in place as shown in the figure Fig 6 21 3 6 4 How to Attach the Corner Cover and Air Intake Grille A Attaching the corner cover 1 Check that the safety strap from the corner cover is fas tened to the ceiling panel pin as shown in the figure Fig 6 23 2 Use the supplied screws to attach the corner cover to the ceiling panel B Attaching the air intake grille Place the corner cover so that the 3 tabs e To install the air intake grille follow the steps for 3 6 1 fit into the holes in the ceiling panel Before Installing the Ceiling Panel in the reverse order ERA By rotating the air intake grille it is possible to attach the Fig 6 23 grille onto the ceiling panel TEM from any of 4 directions panel hook Fig 6 25 e When attachin
25. est running the air conditioner Measuring pressure TE and gas charging ma ZZ Air purging with a vacuum pump T Uy YEZ CAUTION Close When opening or closing the service valve stem Open Z NY Hex use the hex wrench arench Be sure to fully seat the wrench before turning Fig 33 the valve B Pump Down Pump down means collecting all refrigerant gas in the system back into the outdoor unit without losing any of the gas Pump down is used when the unit is to be moved or before servicing the refrigerant circuit Pump Down Procedure Be sure to carry out pump down with the unit in Cooling mode 1 Connect the Lo side charging hose of the manifold valve to the service port on the wide tube service valve 21 The service port on the wide tube ser vice valve uses a Schrader core valve ao to access the refrigerant system ULL VA hL A Therefore be sure to use a hose con 777 YA 7 7777 nector which has a push pin inside Fig 32 Service valve SD A AT SN External diameter of service port R410A 5 16 Fig 32 2 Using a hex wrench turn the narrow tube service valve clockwise all the way to close the service valve Be sure to confirm that the wide tube service valve is fully open 3 Press the operation button and start cooling oper ation 4 When the low pressure gauge reading falls to 14 2 to 7 1 psi 1 to 0 5 kg
26. etween the remote con troller and the air conditioner since a check signal is sent from the remote controller every 5 minutes 7 1 Mounting on a Wall Before mounting the remote controller press the ON OFF operation button at the mounting location to make sure that the air conditioner operates from that location The indoor unit should make a beeping sound to indicate that it has received the signal Remote control f To prevent loss of the remote controller Mounting screws you can connect the remote controller 5 32 x 5 8 4 x 16 mm to the holder by passing a string through included the remote controller and attachment hole To take out the remote controller pull it forward Fig 36 22 8 Address Switch 8 1 Address Setting of the Remote Controller The address can be set in order to prevent interfer ence between remote controllers when 2 indoor units are installed near each other The address is normally set to A To set a different address it is necessary to change the address on the second remote controller Once changed you cannot restore the original address setting of the air conditioner 1 Switch on the power source 2 Break the address setting tab marked A on the second remote controller to change the address Fig 37 When the tab is removed the address is automatically set to B Fig 38 3 Press and hold the remote controller HIGH POWER button and 1HR TIMER button Then press
27. ft 850mm or less X Uphill slope Fig 6 8 Support bracket Fig 6 9 3 5 Checking the Drainage Water drain After wiring and drain piping are completed use the following pro cedure to check that the water will drain smoothly For this pre pare a bucket and wiping cloth to catch and wipe up spilled water e Be sure to do the wiring between the units before installing the ceiling panel Refer to 3 9 Wiring Instructions for Inter unit Connections 1 Turn on the power Here power refers to the power supply Over 4 from the outdoor unit 100mm 2 Slowly pour approx 16 ounces 500 ml of water into the drain pan to check drainage Fig 6 10a 3 Remove the 2 screws from the control box cover then open Plastic container the cover Be careful not to drop the cover at this time for water intake Water 4 Disconnect the FS 3P connector red on the control PCB and A RNEER operate the drain pump Fig 6 10b Check the water flow Fig 6 10a through the transparent drain pipe and see if there is any leakage Control box 5 When the check of drainage is complete reconnect the FS 3P connector and remount the control cover The drain pump will continue to N CAUTION operate for a minimum of 6 min utes after the FS 3P connector is Fig 6 10b reconnected A must be within the range of 1 2 13mm to 23 32 18mm Fig 6 11 If not within this range malfunction or other trouble may
28. g the air intake 5 5 CEN us E grille be careful that the flap f in any of 4 directions and the indicator wiring do l not become caught e Be sure to attach the safety cord that prevents the air intake grille from dropping off to the Hook that prevents gu l ceiling panel unit as shown droppifi in Fig 6 24 Fig 6 24 Fig 6 25 3 6 5 Checking After Installation e Check that there are no gaps between the unit and the ceiling panel or between the ceiling panel and the ceiling sur face Gaps mav cause water leakage and condensation e Check that the wiring is securely connected If it is not securely connected the auto flap will not operate In addition water leakage and condensation may occur 3 6 6 When Removing the Ceiling Panel for Servicing When removing the ceiling panel for servicing remove the air intake grille and air filter disconnect the flap and the indi cator wiring connectors inside the control box and then remove the 4 mounting screws 3 6 7 Adjusting the Auto Flap The air direction flap on the ceiling panel outlet can be adjusted as follows e Adjust the flap to the desired angle using the remote controller The flap also has an automatic air sweeping mecha nism e Never attempt to move the flap by hand e Proper air flow depends on the location of the air conditioner the layout of the room and furniture etc If cooling or heating seems inadequate try changing the direction of the ai
29. ing is already constructed lay the tubing and wiring into position for connection to the unit before placing the unit PP id edu inside the ceiling 91 4 o 6 35mm flared Fig 6 2 1 25 32 4 19 32 30mm 3 The length of suspension bolts must be appropriate for a distance between the bottom of the bolt and the bottom of the unit of more than 19 32 15 mm as shown in the diagram Fig 6 3 Over 19 32 15mm 1 2 23 32 13 18mm E Thread the 3 hexagonal nuts locally purchased and 2 supplied washers onto each of the 4 suspension bolts as shown in the diagram Use 1 nut and 1 o gt IL R 1 washer for the upper side and 2 nuts and 1 washer EE EE Glaser for the lower side so that the unit will not fall off the kat ui printed on top of container box suspension lugs Fig 6 4 Fig 6 3 5 Adjust so that the distance between the unit and the Suspension bolt ceiling bottom is 1 2 13 mm to 23 32 18 mm Tighten the nuts on the upper side and lower side of the suspension lug Fig 6 4 Nuts and washers used for upper and lower Suspension lug Double nut 1 2 23 32 13 18mm ea i Fig 6 4 3 4 Installing the Drain Piping 1 Prepare standard hard PVC pipe locallv purchased O D 1 1 32 26 mm for the drain and use the supplied hose band to prevent water leaks Fig 6 5 2 To
30. install the drain hose first place 1 of the 2 hose bands over the unit drain port and the other hose band over the hard PVC pipe not supplied Then connect both ends of the supplied drain hose Fig 6 5 3 On the unit drain side grasp the hose band with pliers and insert the drain hose all the way to the base e f other commercially available hose bands are used the drain hose may become pinched or wrinkled and there is danger of water leakage Therefore be sure to use the supplied hose bands When sliding the hose bands be careful to avoid scratching the drain hose e Do not use adhesive when connecting the supplied drain hose to the drain port either on the main unit or the PVC pipe Reasons a It may cause water to leak from the connec tion Since the connection is slippery just after the adhesive has been applied the pipe easily slips off b The pipe cannot be removed when mainte nance is needed 4 Wrap the hose with the supplied drain hose insulation and use the 4 twist ties so that the hose is insulated with no gaps e Do not bend the supplied drain hose 90 or more The hose may slip off Make sure the drain pipe has a downward gradient 1 100 or more and that there are no water traps e In cases where it is necessary to raise the height of the drain piping the drain piping can be raised to a maximum height of 2 78 ft 850 mm above the bottom surface of the ceiling Under no conditions attempt to raise
31. nd a metal frame Provide a suitable air baffle In a Snowy Area for Heat Pump type Systems Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrigerant Tubing 099009900999900909099099909909000090909090000099090000900900009000009099009000900909090009090000900000090900090909009090990090090000090090000909000099 When performing piping work do not mix air except for speci fied refrigerant R410A in refrigeration cycle It causes capacity down and risk of explosion and injury due to high tension inside the refrige rant cycle Refrigerant gas leakage may cause fire Do not add or replace refrigerant other than specified type It may cause product damage burst and injury etc Ventilate the room well in the event that refrigerant gas leaks during the installation Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas Use the flare method for connecting tubing Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before starting the test run Do not leak refrigerant while piping work for an installation or re installation and while repairing refrigeration parts Handle liquid refrigerant carefully as it may cause frost bit
32. nd the power box cover Loose wiring mav cause the ter WARNING l minal to overheat or result in unit malfunction A fire hazard may also exist Therefore be sure all wiring is tightly connected When connecting each power wire to the corresponding terminal fol low the instructions How to connect wiring to the terminal and fasten the wire securely tight with the fixing screw of the terminal plate How to connect wiring to the terminal a For Indoor Unit 1 Cut the wire end with a cutting pliers then strip the insulation to expose the wire about 9 32 7 mm See the label Fig 9 near the terminal plate 2 Using a screwdriver loosen the terminal screw on the terminal plate 3 Insert the wire and tighten the terminal screw completely using a screwdriver b For Outdoor Unit Bi For solid core wiring or F cable 1 Cut the wire end with a cutting pliers then strip the insulation to expose the solid wire about 15 16 25 mm Fig 10 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using the pliers bend the solid wire to form a loop suitable for the terminal screw 4 Shape the loop wire properly place it on the terminal plate and fix it securely with the removed terminal screw using a screwdriver 14 er wiring Locally purchased Clamping strap Earth screw KE gt A g Inter unit T5 Conduit Fig 8 9 32 STRIP 7 mm ACTUAL SIZE SIZE
33. no leakage stop the air conditioner 15 Wipe off the soap on the tubing This completes air purging with a vacuum pump and the air condi tioner is ready for actual operation 19 90 1 4 turn ib Narrow tube Hex wrench o Blk ok Wide tube e SO Valve cap Vacuum hose to manifold valve Fig 28 How to Test Run the Air Conditioner After turning on the power of the air conditioner use the remote controller and follow the steps below to conduct the test run 1 Set the remote controller in Test Run mode Fig 29 a Press and hold the HIGH POWER button and the 1HR TIMER button b Then press and hold the ACL Reset button with a pointed object such as the tip of a pen After 5 seconds release the ACL button first c Then release the HIGH POWER and 1HR TIMER buttons d appears and oP 1 blinking in the remote con troller clock display area Fig 30 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 29 This starts the fan producing uncooled forced air with the 3 indicator lamps OPERATION lamp TIMER lamp and HIGH POWER lamp on the main unit blinking Fig 31 After 3 minutes the system shifts into cooling operation and cool air will start to be felt Cooling mode test run is unaffected by the room tempera ture 3 Press the ON OFF operation button of the remote controller again to stop the
34. occur 3 6 How to Install the Ceiling Panel Indoor nit Checking the unit position 1 Check that the ceiling hole is 23 5 8 600 mm x 23 5 8 s METAM mee 600 mm Fig 6 11 l l 2 Confirm that the position of the indoor unit and the ceiling as shown in the diagram If the positions of the ceiling sur face and unit do not match air leakage water leakage flap operation failure or other problems may occur Fig 6 11 Numa e Never place the panel face down Neither hang it ver Fig 6 12 Fig 6 13 tically nor place it on top of a projecting object Plac ing it face down will damage the surface Air intake grille e Do not touch the flap or apply force to it This may cause flap malfunction Fig 6 12 3 6 1 Before Installing the Ceiling Panel A 4 1 Remove the air intake grille and air filter from the ceiling panel Air intake grille hinge a Press on and slide the two latches of the air intake grille Fia 6 14 with your thumb in the direction shown by the arrow 1 i to open the grille Figs 6 13 and 6 14 b With the air intake grille opened remove the grille hinge from the ceiling panel by sliding it in the direction shown by the arrow 2 Fig 6 15 2 Removing the corner cover and indicator cover a While lightly pressing the cen ter of the corner cover pull up the tab for the screw hole Use the same procedure to remove the indicator cover Fig 6 16
35. or which has a push pin inside mA M Be sure to use a manifold valve for air purging If it is not available use a stop valve field supplv for this purpose The Hi knob of the mani fold valve must always be kept closed 18 Vacuum pump Fig Charging hose Exclusively for R410A Vacuum pump adapter Exclusively for R410A with reverse flow prevention 27 4 With the Lo knob of the manifold valve open run PM P NOTE the vacuum pump The operation time for the vacu um pump varies with tubing length and the capacitv To prevent other refrigerants from being mistakenly of the pump The following table shows the amount charged to units which use R410A the size of the of time for evacuation charge port on the service valve is different from the Table 6 Required time for evacuation when 26 4 gal h 100 liter h vacuum pump is used vacuum pump adapter with reverse flow prevention If tubing length is If tubing length is less than 33 ft 10 m more than 33 ft 10 m 10 min or more 15 min or more NOTE for R410A must be used one for other refrigerant types For servicing such as recharging the specified charging hose manifold and 5 With the vacuum pump still running close the Lo The required time in Table 6 is calculated based on the knob of the manifold valve Then stop the vacuum assumption that the ideal or target vacuum condition pump is aroun
36. ossy and smooth e edge is smooth e tapered sides are of uniform length 5 3 Caution before Connecting Tubes Tightly a Besure to apply a sealing cap or water proof tape to prevent dust or water from getting into the tubes before they are used b Besure to apply refrigerant lubricant to the match ing surfaces of the flare and union before connect ing them together This is effective for reducing gas leaks Fig 19 c For proper connection align the union tube and flare tube straight with each other then screw in the flare nut lightly at first to obtain a smooth match Fig 20 Deburring Before U u U u Ho ME A NI Fig 15 Copper adii tubing 4 Reamer Fig 16 If the special R410A If the previous flare tool flare tool is used clutch type is used ZZ 0 to 0 0196 ZZ 0 0472 1 2 mm 0 to 0 5 mm Adjust so that the amount of tube protrusion is as shown in the figure Fig 17 o e Copper 3 RQ tubing Fig 18 Applv refrigerant lubricant here and here Union Flare nut Fig 20 16 5 4 Connecting Tubing between Indoor and Outdoor Units a Tightly connect the indoor side refrigerant tubing exten ded from the wall with the outdoor side tubing Fig 21 b Tofasten the flare nuts apply specified torque as Table 5 Tube Dia Nut Tightening Torque Torque wrench Indoor unit Spanner Outdoor unit Fig 21
37. r flow 3 7 Wiring Instructions General precautions on wiring 1 Before wiring confirm the rated voltage of the unit as shown on its nameplate then carry out the wiring closely following the wiring diagram 2 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and circuit breaker for overcurrent protection provided in the exclu sive line 3 To prevent possible hazards due to insulation failure the unit must be ground ed 4 Each wiring connection must be done tightly and in accordance with the wiring system diagram Wrong wiring may cause the unit to misoperate or become damaged b Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous The manu facturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 3 8 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality For field wiring require ments please refer to your local electrical codes Carefully observe these regula tions when carrying out the installation Table 4 lists recommended wire lengths and diameters for power supply systems Refer to the wiring system diagram Fig 7a or Fig 7b for the meaning of A B and C in Table 4 Hefer to your local codes or in the absence of local codes see th
38. test run Fig 29 4 Finally press the ACL Reset button of the remote controller to release it from Test Run mode to return to normal mode Fig 29 c se and oP 1 will disappear from the remote controller clock display area Troubleshooting In the event that the green OPERATION lamp is blinking upon powering up the system an error condition exists In this case refer to the self diagnostics procedure which can be seen by opening the air intake grille IMPORTANT After the test run is completed be sure to press the ACL Reset button to return to normal mode The air condi tioner will not operate correctly if this is not done 20 button OOOO OOOO AIR CONDITIONER DARLE OO SETTEMP N i E a P F ua LILI lt c NDKOV x BERI Pu ELEC KADI amp Gs HIGH POWER Pi NIL ONOFF He operation button 0 A 1 H H TIMER FAN SPEED MODE button FLAP NIGHT SETBACK TIMER Co QC CANCEL CLOCK O SENSOR C4P F 12H4P24H ADR ACL ACL Reset button FNE nini uid button iet c OPERATION lamp c TIMER lamp HIGH POWER lamp REMOTE CONTROL receiver Fig 31 B Basic Functions of the Service Valves The basic functions of the service valves are given in Table 7 Table 7 below Action Narrow Tube Service Wide Tube Service Valve 2 Way Valve 3 Way CLOSED _ Valve cap opi VU om Shipping EA UA e lA Wa Operating and t
39. thin 10 3 m Anchor bolts LE SF SSS SS SS ee SSS SSS Ss FE A E S pr A E N LEMA SS N E E A A NE r Ss S555 SS SS a B B ee LL EERES In cm Air intake 2222222233 i ee te er es es eee H Ss Ss HEBEL Be es ses ese soe BSS Seas Sis See JE L is es G ee ee ery iy Ss a ss ss Sy Ses Se es ss SS Ses Sse es es ey Concrete EZ SS S55 SS gzz or equal S NW NN N NN A A DAY Air discharge Min soy a 8 20 cm NO 7A Exhaust fan Hot air L ej Outdoor unit Fig 3 CU KE12NK1 Air intake Min 2 5cm Valve side Min 10 25 cm INA AOW Fig 4a CU KE18NKU Air intake Min 4 10 cm Valve side Min 10 25 cm Min 2 5 cm Air discharge Min 1 4 40 cm Fig 4b AN AN i W WW NW WA WW N z BA Wi NN fii AAS ili ANI WW ANNA ii MM RN ANN NNN iN WW EJ WW iii WW WW KX A wa AMMESSA M NW WW A Wi N ti Fig 5c T 11 Heat source Obstacle above 2 Min G 2 m iC 8 O lt E G qm 8 O Ground Min 2 5 cm Air intake Obstacle above 3 4 Air discharge Obstacle Ground Min 4
40. w and wide tubing fittings and insulation Consult your nearest sales outlet or air conditioning workshop 1 4 Type of Copper Tube and Insulation Material If you wish to purchase these materials separately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2 Cut each tube to the appropriate lengths 1 to 1 4 30 cm to 40 cm to dampen vibration between units 2 Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing Wall thickness of the insulation should be not less than 5 16 8 mm 3 Useinsulated copper wire for field wiring Wire size varies with the total length of wiring Refer to 3 7 Wiring Instructions for details CAUTION Check local electrical codes Narrow Tube Wide Tube Model and regulations before Outer Dia Thickness Outer Dia Thickness obtaining wire Also check CS KE12NB41 1 4 6 35 mm 0 0314 0 8 mm 3 8 9 52 mm 0 0314 0 8 mm any specified instructions or Table 2 CS KE18NB4UW 1 4 6 35 mm 0 0314 0 8 mm 1 2 12 70 mm 0 0314 0 8 mm limitations 4 1 5 Additional Materials Required for Installation 1 Refrigeration armored tape 2 Insulated staples or clamps for connecting wire See local codes 3 Putty 4 Refrigeration lubricant 5 Clamps or saddles to secure refrigerant tubing 2 Installation Site Selection 2 1 Indoor Unit Mnie To
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