Panasonic CU-2E18NBU Installation Manual
Contents
1. va Q Use the attached accessories parts and specified parts for installation Otherwise it will cause the set to fall water leakage fire or electrical shock WHEN INSTALLING AN AIR CONDITIONER BE SURE Use a material with good heat resistant properties as the heat Liquid side pipes Material shall easten and Tim location which 1s able to withstand the sets weight the strength snot enough or instalation Te not properly done the set wil TO EVACUATE THE AIR INSIDE Tab NOOR UNC ANE Outdoor unit insulation for the pipes Be sure to insulate both the gas side withstand 248 F or drop and cause injury Outdoor unit PIPES in the following procedure Tube Somector A CAUTION and liquid side pipes If the pipes are not adequately insulated higher Q For installation work follow all electrical building plumbing local codes regulations and these installation instructions If electrical circuit capacity 1 Connect a charging hose with a push pin to the Low Indoor Unit condensation or water leakages may occur Gas side pipes igl is not enough or a defect is found in electrical work it will cause electrical shock or fire side of a charging set and the service port of the gas So O Do not use spliced wires for indoor outdoor connection cable Use the specified2. 5 32 Clos oe Hexagonal 47 1 4 an 8 Mount valve caps onto the 2 way valve and 3 way 4 Immediately set the gas side valve to close position and then press the PUMP wrench A CAUTION 47 4 7 3 15 16 F valve DOWN switch SW1 to stop the pump down operation n z s z 1 1 hae Be sure to check for gas leakage Note Pump down operation will stop automatically after 15 minutes if PUMP 9 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 More than 3 15 16 DOWN switch SW1 is not pressed again NE ane More than 39 3 8 N S Do not release reftigerant during piping work for installation re installation and during repairing a refrigeration parts Take care of the liquid refrigerant it More than 11 13 16 Si Gas side 3 Way valve Pump down operation cannot be restarted until 3 minutes after compressor may cause frostbite i i y Side view Top view Top view Clos is stopped Valve lid Do not install this appliance in a laundry room or other location where water may drip from the ceiling etc 9 pp Y yon 9 Te LED 2 3 4 5 Message O Flashing Fig 4 OQ Do not touch the sharp aluminium fin sharp parts may cause injury A 2 2 s o Pump sown operation ee 2 minutes before operation en o 5 Q Carry out drainage piping as mentioned in installation instructions If drainage is not perfect water may enter the room and damage the furniture B Lolo 2 mi
3. below Gas side 3 8 thickness 1 32 through circuit breaker Goiinectors Incorrect installation due to ignoring of the instruction will cause harm or damage and the seriousness is classified by the following indications i e Connect the UL listed or CSA approved wires Outdoor Unit CU 2E18 Connecting cable minimum AWG 12 to the terminal board and connect Screws Z WARNING This indication shows the possibility of causing death or serious injury Min total piping length for en Conduit to other end of the wires to circuit breaker eme additional gas Connect the power supply cord and connecting wires ara R dditional g 7 Connect the pi pply cord and ting ed A CAUTION This indication shows the possibility of causing injury or damage to properties only If total piping length of all indoor units exceeds the H Additional drain hose x aan os aru and outdoor unit according to the Plugs LK LK ai 5 ay A minimum length listed above additionally charge with 1 4 Liquid side piping x y Valve Cover _ Power Supply Indoor amp outdoor The items to be followed are classified by the symbols 0 2 oz of refrigerant R410A for each additional feet of Metal Knock Out Holes Cord connection wire S Symbol with white background denotes item that is PROHIBITED from doing piping Gl 3 8 Gas side piping Side Panel Q 1 Symbol with dark background denotes item that must be carried out This illustration is for explanation purposes
4. water freezes an Q During installation install the refrigerant piping properly before running the compressor Operation of compressor without fixing refrigeration piping and Outdoor Unit Installation Guidelines 4 To make sure micron gauge a value 500 microns and the fan will not rotate valves at opened condition will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc N EER se i i E close the low side valve of the charging set and turn Indoor Unit Tube Conhector peta Install the hose at an angle so that During pump down operation stop the compressor before removing the refrigeration piping Removal of refrigeration piping while compressor is operating Where a wall or other obstacle is in the path of outdoor unit s intake or exhaust airflow follow the installation guidelines below off the vacuum pump 2 rain elbow the water smoothly flows out and valves are opened will cause suck in of air abnormal high pressure in refrigeration cycle and result in explosion injury etc For any of the below installation patterns the wall height on the exhaust side should be 47 1 4 or less Di as 5 eee Liquid side PUMP DOWN OPERATION J Tighten the flare nut with torque wrench according to specified method If the flare nut is over tightened after a long period the flare may break and cause 5 Disconnect the vacuum pump house from the service K refrigerant gas leakage Wal acing one side Walls facing two s
5. OUTDOOR UNIT Panasonic F615177 1 SELECT THE BEST LOCATION 5 CONNECT THE CABLE TO THE OUTDOOR UNIT Required tools for Installation Works Philips screw driver 7 Reamer 12 Megameter 40 6 Ibf ft Level gauge 8 Knife 13 Multimeter 47 9 Ibf ft OUTDOOR UNIT Installation parts you ic dril il 73 8 Ibf ft If an awning is built over the unit to prevent direct sunlight or rain z z i Electric drill hole core drill a2 3 4 9 Gas leak detector 14 save renen 45 Vacuurn pump Enan iwing o bullt ove We unit to prevent droet sunlight of Outdoor Unit Installation Diagram E should purchase 1 Remove Control Board Cover Metal by loosening 2 bara TE Hexagonal wrench 5 32 10 Measuring tape Toin JeDa Maona There should not be any animal
6. air location of leak Setting method 2 When installing on a roof please consider strong winds and earthquakes Do not release refrigerant during piping work for installation and reinstallation C ACCESSORIES SUPPLIED WITH OUTDOOR UNIT _ 3 Please fasten the installation stand firmly with bolt or nails Take care when handling the liquid refrigerant it may cause frostbite pare on power supply to the outdoor unit cut JPNT COOL ONLY as shown In Check that al accessory parts are present before Instaling the outdoor unit Aner oning of the ite Sch ON the enuininenit ovar YP i g When setting the cooling only operation Heating operation is disabled HEAT PUMP TYPES ONLY Model B ODOUR WASH operation is disabled Odour cut operation is still enabled s ae To revert the setting back to heat pump operation switch OFF the equipment power eee Part name Qty Diagram Application CU 2E18 5 5 32 reconnect JP1 COOL ONLY back to short circuit condition and switch ON the equipment power For connecting the drain Drain elbow 1 E 1 Pipe WIRING ERROR CHECK This product is capable of correcting wiring errors automatically by following these CUTTI N G AN B F LARI N G TH PI PI NG D p Apene valve on the liquid side and gas side is open 1 Please cut using pipe cutter and then remove the burrs 2 Press WIRING CHECK switch Sw3 on the display printed circuit board for Wiring automatic correct ex
7. ample a more than 10 seconds to start wiring check operation 2 Remove the burrs by using reamer If burrs is not removed gas leakage may be caused nji A a Terminal block Turn the piping end down to avoid the metal powder entering the pipe amp 3 Wiring check process will complete in approximately 10 minutes However 3 Please make flare after inserting the flare nut onto the copper pipes wiring check operation will not start within 3 minutes after compressor I Remove the control board cover resin from the outdoor unit by loosening three ls stopped When outdoor air temperature is less than 41 F or unit is Pipe Bar W improper flaring ll screws Flare Nut malfunctioning wiring check will not start See NOTE 2 aier ne The LED 2 to 6 in display printed circuit board inside the outdoor unit indicate ae hess Teen esis do Tr Torr ir Connecting the Piping to Outdoor Unit Screws oe M Connection Pipe Female side whether correction is possible or not and the status of the correction as shown tothe iving bedroom F Ag Copper pipe Inclined Surface Cracked Uneven A in the table belo
8. ide Walls facing three side port of the 3 way valve tibe chrnseick Operate the pump down according to the following procedures iid shui cil wah i j ji j ji ji i eee i j j idei iquid shut off valve Q After completion of installation confirm there is no leakage of refrigerant gas It may generate toxic gas when the refrigerant comes into contact with fire 6 Tighten the service port caps of gas side 3 way valve 1 Confirm the valve on the liquid side and gas sideisopen Close f More than 3 15 16 More than 39 3 8 PAPE IRE at a torque of 13 3 Ibf ft with a torque wrench 2 Press PUMP DOWN switch SW1 on the display printed circuit board for more P n lore x 4 g g Q Ventilate if there is refrigerant gas leakage during operation It may cause toxic gas when the refrigerant comes into contact with fire More than 3 15 16 More than 39 3 aedi 7 Remove the valve caps of both of the 2 way valve than 5 seconds Pump down cooling operation is performed for 15 minutes s z FTA z and 3 way valve Position both of the valves to Open rhe 3 Set the liquid side 3 way valve to close position and wait until the pressure gauge This equipment must be properly earthed Earth line must not be connected to gas pipe water pipe earth of lightning rod and telephone Otherwise it may ora F inaa kaadon wrench a 3o Liquid side J way valve indicates 1 45 PSI cause electrical shock in case of equipment breakdown or insulation breakdown 4 th using a hexagonal Y
9. indoor outdoor connection cable refer to instruction INDOOR side 3 way valve iquid side Q OUTDOOR UNIT ELECTRICAL WIRING and connect tightly for indoor outdoor connection Clamp the cable so that no external force will have impact on 2 Connect the M gauge between vacuum pump the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection z n u uum pul Tube connector Q Wire routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed perfectly it will cause fire or electrical and service port of outdoor units DISPOSAL OF OUTDOOR UNIT DRAIN WATER shook 3 Turn on the power switch of the vacuum pump and Ifa drain elbow is used the unit should be i F z z 7 x i p placed on a stand which is taller than 5 cm This equipment must installed with an Earth Leakage Circuit Breaker ELCB or Ground Fault Current Interrupter GFCI or Appliance Leakage Current 4 e salvar ani x t 7 i Q Interrupter ALCI that has been certified by an NATL Certified Testing Agency and that is suitable for the voltages and amperages involved Otherwise if Indoor unit Indoor unit Outdoor unit male sure that connect digital micron gauge and to Ifthe unit is used in an area were Sete MR pea S el org oe eed may cause electrical shock and fire in case of equipment breakdown pull down to a value of 500 microns succession it is recommended not to use a drain elbow for the drain
10. nutes before operation end eee REA F o lo 1 minute before operation end Secer station cation which i easy tor maintenance D ph belote anette Shee Power supply connection to the room air conditioner ONLY 1 SW1 PUMP DOWN Power supply cord shall be UL listed or CSA approved 3 conductor with minimum AWG12 wires rr Power supply point should be in an easily accessible place for power disconnection in case of emergency COOLING ONLY OPERATION TeShe In some countries permanent connection of this air conditioner to the power supply is prohibited Fix power supply connection to a circuit breaker for permanent connection INSTALL THE OUTDOOR UNIT CAUTION Setting of Cooling only operation j SWS WIRING Use NRTL approved fuse or circuit breaker rating refers to name plate for permanent connection a CHECK iiistallation work If micron gauge value does not descend 500 microns take the following measures The equipment can be set to cooling only operation by setting the JP line on Q It may need two people to carry out the installation work J After selecting the best location start installation to Indoor Outdoor Unit Installation Diagram If the leak stops when the piping connections are tightened further continue working from step the outdoor unit display circuit board 1 Fix the unit on concrete or rigid frame firmly and horizontally with bolt nut 013 32 If the leak does not stop when the connections are retightened rep
11. only ra mao naar Note i Carry out test running to confirm that no abnormality occurs after the installation Then explain to user the operation care and maintenance as stated Respective indoor unit installation procedure shall refer to Unit A Unit B in instructions Please remind the customer to keep the operating instructions for future reference instruction manual provided in the indoor unit packaging A WARNING Allowable piping length Tahini en ine indoor ni ae hla 8 For wire stripping and connection requirement refer to the diagram below ae 9 Secure the power supply cord and connecting cables onto the control board with the holder ir i i i jii jiti it 7 ir Outdoor Unit CU 2E18 De not instal outdoor unit near handrail of veranda When inetaling air conditoner unit on veranda af a high rise bulding child may cimb up to outdoor u i Colour of wires Connecting cable 10 Attach the control board cover metal and resin and valve cover back to the original position with screw unit and cross over the handrail causing an accident _ E Allowable piping length of each indoor unit min max 9 8 ft 82 0 ft Do not use unspecified cord modified cord joint cord or extension cord for power supply cord Do not share the single outlet with other electrical Terminals on the outdoor unit 2 1 2 TEIE ii A i i i il i jipii i is equipment must be appliances Poor contact poor insulation or over current will cause electrical shock or fire All
12. oor 10 amp Outdoor 0D units Capacity Retrigerantl wping size pesa Max length for Max from Max a or Additional Power Pies eh 1 2 0 04 ft 55 Nem 40 6 Ibf ft Male side 2 If the outdoor air temperature is less than 41 F or unit has abnormality wiring operation will not start Possible Combination Patterns Btu h Gas Liquid tengt Eton eachiD sachin length acdtonal gas effigerant supply wire size wire size 5 8 0 05 ft 65 Nem 47 9 Ibf f raii tor Eiare Nut 3 After wiring check operation is complete LED indication will be illuminated until normal operation starts Outdoor 00 CUZETENBU 3 4 0 06 ft 100 Nem 73 8 Ibf ft 4 Follow the product diagnosis procedure Check the diagnostic label at the control board cover Indoor ID 2 UNITS OF CS E9NKUAW 5 When LED 1 only is illuminated this indicates that outdoor unit is operating normally Outdoor OD CU 2E18NBU wae ote ses oe Indoor D 2 UNITS OF CS Et2NKUAW 16700 RAIOA ogsomm onas 245 stony 98t ezon fisson eser ozozin yeazoal AWGI2 AWE CEKEN Outdoor OD CU 2E18NBU MOP 25A Indoor ID 1 UNIT OF CS ENKUAW 1 UNIT OF CS E12NKUAW Short circuit of the blow out air Mistake in wiring Example z e x s Smooth flow of the drain Reliable connection of the grand wire If total piping length of all installed indoor units is at 68 6 ft the quantity of additional refrigerant should be 0 6 oz 68 6 65 6 ft x 0 2 oz ft 0 6 oz crew Ga
13. or plant which could be affected screws Spanner 11 Thermometer NR HOR Micron Gauge by hot air discharged vi L Itis advisable to avoid more 2 Remove Valve Cover Metal by loosening 2 screws Pipe cutter Q Keep the spaces indicated by arrows from wall ceiling fence or than 2 blockage directions a Bi other obstacles For better ventilation amp TEONE aes Do not place any obstacles which may cause a short circuit of the L multiple outdoor installation 4 Fix the conduit connectors to the knock out holes with fet Board Gover Cree re aA dohier odii PES please consult authorized lock nuts then secure them Metal SAFETY PRECAUTIONS a A en Le ee A E TONS dealer specialist 5 Connecting wire between indoor unit and outdoor unit 3 p should be UL listed or CSA approved 4 conductor Read the following SAFETY PRECAUTIONS carefully before installation Refrigerant piping size wires minimum AWG16 in accordance with local 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 i j re Power supply cord ie Outdoor Unit CU 2E18 Condut electric codes Lock Nuts installed PRES E PRN m conduit J ka The caution items stated here must be followed because these important contents are related to safety The meaning of each indication used is as Liquid side i 61 4 thickness 1 32 6 Wire Connection to the power supply 208 230V 60Hz
14. owable total piping length of all indoor unit 164 0 ft or less Power supply cord UNIT A UNITB WIRE STRIPPING AND CONNECTING REQUIREMENT poner pede Do not tie up the power supply cord into a bundle by band Abnormal temperature rise on power supply cord may happen 2 x i Outdoor unit located on upper side 49 2 ft or less Wissen i Height difference between indoor and outdoor unit TS Conductor fully Conductor over Conductor not Earth wire must be Yellow Do not insert your fingers or other objects into the unit high speed rotating fan may cause injury A Outdoor unit located otherwise 24 6 ft or less See rire rented inserted fully inserted Green Y G in colour and Outdoor unit located on upper side 24 6 ft or less connectin longer than other AC wires for Do not sit or step on the unit you may fall down accidentally Height difference between indoor unit s Power Supply terminal Eai x DN Ss gt Ks safety reasons Outdoor unit located otherwise 49 2 ft or less gV wy D gZ Keep plastic bag packaging material away from small children it may cling to nose and mouth and prevent breathing he a s Ke Ac When installing or relocating air conditioner do not let any substance other than the specified refrigerant eg air etc mix into refrigeration cycle piping No loose strand when inserted gap between ACCEPT PROHIBITED PROHIBITED Mixing of air etc will cause abnormal high pressure in refrigeration cycle and result in ex
15. plosion injury etc Outdoor unit located Outdoor unit located Indoor unit wires i ai om on upper side otherwise Do not add or replace refrigerant other than specified type It may cause product damage burst and injury etc For R410A model use piping flare nut and tools which is specified for R410A refrigerant Using of existing R22 piping flare nut and tools may cause a abnormally high pressure in the refrigerant cycle piping and possibly result in explosion and injury Thickness or copper pipes used with R410A must be more than 1 32 Never use copper pipes thinner than 1 32 Itis desirable that the amount of residual oil is less than 0 0008 oz tt 7 Outdoor unit Engage authorized dealer or specialist for installation If installation done by the user is incorrect it will cause water leakage electrical shock or fire EVACUATION OF THE EQUIPMENT Install according to this installation instructions strictly If installation is defective it will cause water leakage electrical shock or fire 6 HEAT INSULATION
16. s Leak Checking Reliable thermal insulation Looseness in terminal screw Pressure test to system to 400 PSIG with dry nitrogen in stages Thoroughly leak check the system Leakage of refrigerant Grounding Earth connection ENGLISH If the pressure holds release the nitrogen and proceed to section 4 F61 51 77 PRINTED IN MALAYSIAS
17. w one l G tS damaged thickness Decide piping length and then cut by using pipe cutter Remove burrs from cut edge Control Board Cover Resin m Applicable to Point down Clamp handie Red arrow mark When property flared the internal surface Make flare after inserting the flare nut locate at valve onto the copper pipe 6 i Liquid and Gas side of A 2 3 4 5 6 Message Wiring error check 4 To cut 2 To remove burrs 3 To flare of the flare will evenly shine and be of A Snir Spina 9 wales and then tighten with torque wrench to the specified Tome Wrench for Flare Nut Coes All flashing 7 Thatomatic correction impossible i ii lorque as stated in the table ree 2 oven iomasa Since me sere Pa zi Liquid side lo LED2 4 6 and LED 3 5 alternatively flashing Wiring check in progress LED lighting sequence after a wiring correction carefully check the flare finish Do not overtighten over tightening may cause gas leakage To Flare N a Flashing one after another Automatic correction completed Order of LED flashing 3 gt 2 ie are Nut Other than above Unit has abnormally Note 4 QUICK GUIDE Piping size Torque ae a T Connection Pipe If automatic correct is impossible check the indoor unit wiring and piping manually 1 4 0 02 ft 18 Nem 13 3 Ibf ft PIPING amp ELECTRICAL SPECIFICATION 38 7 03 T n Nem ist 0 lbf wt st r NOTE a Min pipe 1 For two rooms LED 4 and 5 are not illuminated after wiring operation is complete Ind
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