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Sanyo CH1872 User's Manual

1. 37 FUNCTIONS 8 1 Operation Functions 38 RN FUN ee m 40 TROUBLESHOOTING 9 1 Precautions before Performing Inspection or Repair 42 9 2 Method of Self DiagnosStiCs 42 9 3 Checking the Indoor and Outdoor Units aaiaaaaaaaaaaaaa aaa aaaa naaaaaaananaaanaaaanaaaaanaaanaaaanaa 45 9 4 Trouble Diagnosis of Fan 49 9 5 Noise Malfunction and Electromagnetic Interference 51 Page 10 CHECKING ELECTRICAL COMPONENTS 10 1 Measurement of Insulation Resistance aaaaaaaaaaaaaaasaasauvaasaanaansansansaanaanaannansannanaaana 52 10 2 Checking Continuity or Fuse on PCB KASS V iisssswtexexukicxiete xd 53 11 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11 1 Characteristics of New Refrigerant R410A _ 54 11 2 Checklist before Servicing E TEE 55 11 3 Tools Specifically TOF R410A 56 11 4 Tubing Installation Procedures 56 11 5 In Case of Compressor Malfunction 57 11 6 In Case Refrigerant is Leaking auaaaaaaaaaaaaanaaaanaaaauaaannaaanna
2. 1 Thermister Control Uni Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical RA 10A 7 2 87 1 300 Operation Sound Indoor Hi Me Lo Qt dB A 42 38 30 28 41 38 30 28 Qt Quiet mode Outdoor Hi dB A 51 52 Refrigerant Tubing Connections Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm o Unit Dimensions inch 111 23 32 x 41 15 16 x 8 19 32 26 3 8 x 34 21 32 x 11 7 32 g Height x Width x Depth mm 298 x 1 065 x 218 670 x 880 x 285 Package Dimensions inch 11 3 8 x 44 7 8 x 14 29 32 29 1 8 x 39 27 32 x 14 31 32 6 Height x Width x Depth mm 289 x 1 140 x 379 740 x 1 012 x 380 2 Weight Net Ibs kg E Shipping Ibs kg a 4 23 0 12 9 88 0 28 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Heating Indoor air temperature 70 F D B Outdoor air temperature 95 F D B 75 F W B Outdoor air temperature 47 F D B 43 F W B o Indoor Unit KHS1872 Outdoor Unit CH1872 Voltage Rating 208V Single Phase 60Hz lt 208V gt Total Capacity BTU h 17 500 4 000 to 17 500 20 400 4 400 to 20 400 Sensible Capacity BTUn y o E laentCapay 440 Q Air Circulation High ft min m h 524 890 541 920 Moisture Removal High Pints 4D 2 Power Input W 1 500 250to 1 500
3. Check carefully for leaks before starting the test run When Servicing 6060909000009900000090900000009000000900000090900000990000000000000090000000900000090900000090000000000000090900000900000090000000000000000000 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 009090000099000000090000009090000009000000909000009000009009000000090000009000000909000000900000009000000099000009000000900000000000000000009 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 1 General This booklet briefly outlines where and how to install the 6 Sabre saw or key hole saw air conditioning system Please read over the entire set 7 Hacksaw of instructions for the indoor and outdoor units and make 8 Core bits sure all accessory parts listed are with the system before 9 Hammer beginning 10 Drill 11 Tube cutter 1 1 Tools Req
4. y p Defect in the outdoor unit P C board Condition E12 Outdoor Unit Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 7 Indoor Unit Fig 7 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit Perform the self diagnosis five seconds after the operation start Condition E01 What is the latest self diagnosis result Defect in a inter unit cable Condition 12 Defect in the indoor unit P C board 48 9 4 Trouble Diagnosis of Fan Motor 9 4 1 Indoor Fan Motor This indoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor e To perform diagnosis operate the unit in cooling mode with indoor fan speed High Next make sure that the indoor unit receive the signals from the remote controller when the ON OFF operation button is pressed Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the indoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 1 minute after operation is started For this reason to measure the voltage again turn OFF the un
5. 2P CONNECTOR WHT cQ N WHT WHT ANI GRN YEL GRN YEL HIC HIC BD BD HIC HIC 2 AC2 Al 2 1 E FERRITE TERMINAL CORE CRANKCASE HEATER ii CONTROLLER LE TO INDOOR UNIT COMP A TH COIL OUTDOOR PVI 31415 TR meea mep gt E a O 2 2 Q T QA on BLK BLK BLK BLK YEL YEL FERRITE EIL ORG HIGH PRESSURE SWITCH BLK 1173 BLK 2P CONNECTOR BLK THERMISTOR COIL THERMISTOR EN COMPRESSOR THERMISTOR OUT DOOR 7P CONNECTOR WHT ORG 2P CONNECTOR WHT AA LU LU MAGNETIC COIL OVERLOAD RELAY 4WAY VALVE COMPRESSOR MOTOR OLR FAN MOTOR COIL C GE 2P CONNECTOR RED 8FA2 5257 69200 3 35 7 MAINTENANCE 7 1 Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two 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 NOTE 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 13 When the tab is removed the adress is automatically set to B Fig 14 3 Press and hold the remote controller ION button and 1 HR TIMER butt
6. High pressure switch Heat exchanger Capillary tube for Electric split flow expansion valve Narrow tube service jt Cooling cycle Defrosting cycle Narrow tube gt Heat exchanger M 4 SEND 6 35 1 0 1 2 12 7 mm 1872 class O D 5 8 15 88 mm 2472 class Insulation of Refrigerant Tubing IMPORTANT Because capillary tubing is used in the outdoor unit both the wide and narrow tubes of this air conditioner become cold To prevent heat loss and wet floors due to dripping of Insulation condensation both tubes must be well insulated with a Thickness Thickness proper insulation material The thickness of the insulation Min 5 16 8 mm Min 5 16 8 mm should be a min 5 16 8 mm After a tube has been insulated Narrow tube mE Wide tube never try to bend it into a narrow CAUTION curve because it can cause the tube to break or crack 18 5 PERFORMANCE DATA 5 1 Temperature Charts Indoor Unit KHS1872 Outdoor Unit CH1872 H Cooling Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 Low pressure performance chart 174 1 2 psig MPaG ERR ENE TT 9 lt TL umi 104 Hee 90 TL z ULL EHE EHE EE EEE 76 20 1 15 4 0 65 0 5 0 5 20 25 80 85 40 Outdoor inlet air D B temp F C
7. 3 Attach the thermistor on the grille Fig 17a 4 Close the cover and replace the screw Fig 17a 5 Affix the grille with the 3 previously removed screws Fig 16b 6 Install the air intake grille a Allow the edge of the air intake grille to slide into the top of the indoor unit and then insert it all the way inside Fig 19a b Press the bottom right and left corners and center of the air intake grille to attach it to the indoor unit Fig 19b Attach so that the round pins at the top right and left cor ners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit Fig 19b DOO MMI RV KANN LY RY FYR MINH TINO HMI III 00022677 7 7 UT 0717 RHA RAM ACY WY TERR AREY DARREN MM Haha UU o e CA Fig 18b Fig 19a 3 5 Shape the Indoor Side Tubing 1 2 Arrangement of tubing by direction a Right or left tubing Cut out the corner of the right left frame with a h
8. 6 1 Electrical Characteristics Indoor Unit KHS1872 Outdoor Unit CH1872 1 Voltage 230V Cooling lt 230V gt Indoor Unit Outdoor Unit A alk Fan Motor Fan Motor Compressor P Performance at 230V Single phase 60Hz Rating conditions Running amp Power input 1 468 1 500 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 Indoor Unit Outdoor Unit C Fan Motor Fan Motor Compressor O Performance at 230V Single phase 60Hz Rating conditions Running amp 03 Power input 1 541 1 575 Rating conditions Indoor air temperature 70 F 21 1 C D B Outdoor air temperature 47 F 8 3 C D B 43 F 6 1 C W B Heating 2 Voltage 208V Cooling lt 208V gt Indoor Unit Outdoor Unit Uni Fan Motor Compressor j Performance at 208V Single phase 60Hz Rating conditons Running amp Power input 1 468 1 500 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 C D B Indoor Unit Outdoor Unit HUN Fan Motor Compressor SRL ar Heating Performance at 208V Single phase 60Hz Rating conditions Running amp Power input 1 541 1 575 Rating conditions Indoor air temperature 70 F 21 1 C D B Outdoor air temperature 47 F 8 3 C D B 43 F 6 1 C W B 31 Indoor Unit KHS2472 Outdoor Unit CH2472 1 Voltage 230V Cooling
9. Between pin 7 and pin 4 After fluctuating 4 times between DC 1 7 to 6 1V 1 sec ON and DC 0 V 1 sec OFF the DC motor trips Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Outdoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement CH1872 CH2472 Pin 1 Vs white Pin 1 Vm red Pin 2 Not used Pin 2 Not used Pin 3 Not used Pin 3 Not used Pin 4 Gnd black Pin 4 Gnd blue Pin 5 Vcc red Pin 5 Vcc brown Pin 6 FG blue Pin 6 PG white Pin 7 Vsp yellow Pin 7 Vsp orange Trouble symptom 3 Motor rotates for some time several seconds but then quickly stops when the outdoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the outdoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during outdoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during outdoor unit operation Remedy for symptom 3 to 5 It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble Therefore first replace the outdoor unit controller then if necessary replace the DC motor 50 9 5 Noise Malfunction and Electromagnetic Interference An inverter A C operates using pulse signal control a
10. Installation Location e We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit e Before installation check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate Do not install this air conditioner where there are fumes or flammable gases or in an extremely humid space such as a greenhouse Do not install the air conditioner where excessively high heat generating objects are placed Avoid To protect the air conditioner from heavy corrosion avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa Electrical Requirements 1 All wiring must conform to the local electrical codes Consult your dealer or a qualified electrician for details 2 Each unit must be properly grounded with a ground or earth wire or through the supply wiring 3 Wiring must be done by a qualified electrician Safety Instructions Read this Instruction Manual carefully before using this air conditioner If you still have any difficulties or problems consult your dealer for help e This air conditioner is designed to give you comfortable room conditions Use this only for its intended purpose as described in this Instruction Manual Never use or store gasoline or other flammable vapor or liquid near the WARNIN
11. 1 575 270 to 1 575 Power Factor lt EER 2 COP WW 1 38 SEER BTUIWh 2 J A u HSPF OBU 100 gt Compressor Locked Rotor Amperes 17 5 Fuse or Circuit Breaker Capacity Controls Temperature Control Microprocessor Thermister I C Thermister Control Unit Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical R410A 7 2 87 1 300 Operation Sound Indoor Hi Me Lo Qt dB A 42 38 30 28 41 38 30 28 Qt Quiet mode Outdoor Hi dB A 51 52 Refrigerant Tubing Connections Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm o Unit Dimensions inch 111 23 32 x 41 15 16 x 8 19 32 26 3 8 x 34 21 32 x 11 7 32 g Height x Width x Depth mm 298 x 1 065 x 218 670 x 880 x 285 Package Dimensions inch 11 3 8 x 44 7 8 x 14 29 32 29 1 8 x 39 27 32 x 14 31 32 6 Height x Width x Depth mm 289 x 1 140 x 379 740 x 1 012 x 380 2 Weight Net Ibs kg E Shipping Ibs kg a 4 23 0 12 9 88 0 28 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Heating Indoor air temperature 70 F D B Outdoor air temperature 95 F D B 75 F W B Outdoor air temperature 47 F D B 43 F W B Indoor Unit KHS2472 Outdoor Unit CH2472 Voltage Rati
12. For field wiring requirements please refer to your local electrical codes Carefully observe these regulations when carrying out the installation Table 5 lists recommended wire lengths and diameters for power supply systems Refer to the wiring system diagram Fig 23 for the meaning of A B and C in Table 5 Refer to your local codes or in the absence of local codes see the National Elec tric Code ANSI NFPA70 Table 5 A B A Power Supply Wiring Length ft C Control n B Power Line Length ft Line Length tt Fuse or Circuit Breaker Capacity Model 414 412 414 CH1872 CH2472 131 Max 230 Max 98 Max 20A NE e Be sure to comply with local codes on running the wire from the indoor unit to the outdoor unit size of wire and wiring method etc e Each wire must be firmly connected e No wire should be allowed to touch refrigerant tubing the compressor or any moving part WARNING e To avoid the risk of electric shock each air conditioner 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 elec tri
13. Low pressure at wide tube service valv 2 Operating current performance chart D Operating current 04 20 is 40 2 25 30 40 Bs air temp P 3 Indoor discharge air performance chart ER 60 8 16 Ses n Lr n 114 T LL 57 2 14 53 6 12 Id E iiii 50 0 10 ET lili TT 68 20 48 40 5 0 5 10 18 20 28 80 40 Outdoor inlet air D B temp F C Indoor discharge air temperature F NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value 19 Indoor Unit KHS1872 Outdoor Unit CH1872 Heating Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 High pressure performance chart psig MPaG High pressure at wide tube service valv T 1 9 23 77 5 5 10 15 2 0 25 DU inlet air D B temp F C 2 Operating current performance chart 11 10 Operating current A ARN UII 6 1 s 32 41 50 59 68 77 0 9 0 15 20 25 Outdoor inlet air temp F C 3 Indoor discharge air performance chart Indoor discharge air temperature F C 23 32 41 50 59 68 77 C5 0 5 0 5 20 25 Outdoor inlet air D B temp F C NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor va
14. j Left rear tubing Right tubing Downward tubing Fig 8 2 3 8 60 mm Tr g T am Fig 9 L 1 4 Using a sabre saw key hole saw or hole cutting drill attachment cut a hole in the wall See Table 4 and Fig 10 Table 4 3 5 32 80 mm 5 Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 1 4 6 mm shorter than the thickness of the wall Fig 11 6 Place the plastic cover over the end of the pipe for indoor side only and insert the pipe in the wall Fig 12 3 3 Install the Rear Panel on the Wall Be sure to confirm that the wall is strong enough to sus pend the unit See either Item a or b below depending on the wall type a If Wooden Wall 1 Attach the rear panel to the wall with the 8 screws provided Fig 13 If you are not able to line up the holes in the rear panel with the beam locations marked on the wall use rawl plugs or toggle bolts to go through the holes on the panel or drill 3 16 5 mm dia holes in the panel over the stud locations and then mount the rear panel Y Double check with a carpenter s level or tape mea sure that the panel is level This is important to install the unit properly Fig 14 Make sure the panel is flush against the wall Any space between the wall and unit will cause noise and vibration b If Block Brick Concrete or Similar Type Wall
15. lt 230V gt Indoor Unit Outdoor Unit Comos Fan Motor Fan Motor Compressor Performance at 230V Single phase 60Hz Rating conditions Running amp Power input 2 300 2 355 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 Indoor Unit Outdoor Unit C Fan Motor Fan Motor Compressor O Performance at 230V Single phase 60Hz Rating conditions Running amp 08 Power input 2 432 2 490 Rating conditions Indoor air temperature 70 F 21 1 C D B Outdoor air temperature 47 F 8 3 C D B 43 F 6 1 C W B Heating 2 Voltage 208V Cooling lt 208V gt Indoor Unit Outdoor Unit Cormolere Unii Fan Motor Compressor i Performance at 208V Single phase 60Hz Rating conditions Running amp Power input 2 300 2 355 Rating conditions Indoor air temperature 80 F 26 7 C D B 67 F 19 4 C W B Outdoor air temperature 95 F 35 D B Indoor Unit Outdoor Unit HUN Fan Motor Compressor pere Heating Performance at 208V Single phase 60Hz Rating conditions Running amp Power input 2 432 2 490 Rating conditions Indoor air temperature 70 F 21 1 C Outdoor air temperature 47 F 8 3 C D B 43 F 6 1 C W B 32 6 2 Electric Wiring Diagrams Indoor Unit KHS1872 KHS2472 To avoid electrical shock hazard be sure to WARNING disconnect power before checking servicing and or cl
16. min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Recover refrigerant OK 2 Replace compressor OK 3 Check for sealing OK 4 Evacuation OK b Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m More than 10 minutes More than 15 minutes 57 5 Recharging Be sure to charge the specified amount of refrigerant in liquid state using the service port of the wide tube service valve The proper amount is listed on the unit s nameplate When the entire amount cannot be charged all at once charge gradually while operating the unit in Cooling Operation CAUTION Never charge a large amount of liquid refrigerant at once to the unit This may cause damage to the compressor When charging with a refrigerant cylinder use an electronic scale for charging refrigerant In this case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the charging cylinder is less than 20 Also charge the minimum necessary amount to the charging cylinder before using it to charge the air conditioning unit Example In case of charging refrigerant to a unit requiring 1 68 Ib 0 76 Kg using a capacity of a 22 Ib 10 Kg cylinder the minimum necessary amount for the cylinder is 1 68 22 x 0 20 6 08
17. 5 3 Cooling Capacity Low Ambient Indoor Unit KHS1872 Outdoor Unit CH1872 Power Supply 230V Single Phase 60Hz lt Cooling Capacity Low Ambient gt RATING CAPACITY 17 500 BTU h AIR FLOW RATE 524 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C W B 0 5 15 25 35 45 55 17 8 15 0 9 4 3 9 1 7 7 2 12 8 15 050 15 040 15 010 15 140 15 200 15 260 15 230 59 15 0 j TC 15 050 15 050 15 090 15 350 15 480 15 620 15 640 63 17 2 SHC SHC SHC SHC 14 740 15 050 SHC 15 050 15 640 NE B 14 890 14 920 15 040 15 460 15 680 15 910 16 000 67 19 4 7 210 720 450 8 94 10 780 11 180 O 12 500 12 910 0 14 23 0 880 6 500 7 210 8 330 8 940 10 060 10 670 11 790 12 400 neo 14 130 14 450 15 300 15 760 16 210 16 470 SHC 4 26 4 980 SHC 5 990 6 810 7 720 8 540 9 450 9 450 10 270 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h 14 640 14 550 14 610 14 820 15 440 15 780 16 120 16 290 T1 21 7 4 88 5 490 O NOTE 1 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 2 Above data represents the value when the operation frequency of a compressor is fixed 25 Indoor Unit KHS2472 Outdoor Unit CH2472 Power Supply 230V Si
18. F 12H4 gt 24H O CO ACL Reset button OPERATION q OPERATION lamp TIMER TIMER lamp QUIET QUIET lamp ION ION lamp E Fig 59c Basic Functions of the Service Valves The basic functions of the service valves are given in Table 8 below Table 8 Action Narrow Tube Service Wide Tube Service Valve 2 Way Valve 3 Way CLOSED O ring gt Valve cap X iG Stem Shipping es Zu co Air purging with Sie a vacuum pump j c Fully OPEN Operating and test running the air conditioner LL Fully OPEN Measuring pressure and gas charging NC M CLOSED The service port on the wide tube ser vice valve uses a Schrader core valve to access the refrigerant system Therefore be sure to use a hose con nector which has a push pin inside Fig 60a CAUTION Close When opening or clos ing the service valve stem use the accessory hex wrench Be sure to fully seat the wrench Fig 60b before turning the valve Open Hex wrench 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 m
19. Make 3 16 4 8 mm dia holes in the wall Insert rawl plugs for appropriate mounting screws Fig 15 Hole should be made at a slight downward slant to the outdoor side Outdoor side ee Cut at slight angle Fig 11 INSIDE OUTSIDE Wall Plastic cover PVC pipe Locally purchased LL Slight __ angle 3 16 4 8 mm dia hole Sa Rawl plug Fig 15 3 4 Remove the Grille to Install the Indoor Unit Basically these models can be installed and wired with out removing the grille If access to any internal part is needed follow the steps as given below How to remove the grille 1 Grasp both ends of the air intake grille and remove it by opening towards the front and pulling towards you Fig 16a 2 Remove the 3 screws Fig 16b 3 Remove the screw on the right side cover plate and open the cover Fig 17 4 Take out the thermistor from the grille Fig 17b 5 Press the 3 tabs at the top of the grille and the 3 tabs on the front face to separate the grille from the frame Fig 18a 6 Pull the grill toward you to remove it How to replace the grille 1 When installing the grille place the bottom of the grille into the frame first Fig 18b Then insert the tabs on the top of the grille and on the front face into the frame 2 Make sure that the grille and frame are firmly fitted together by engaging the tabs
20. Outdoor air temp sensor Model TKS295B Outdoor heat exchanger sensor Model TKS292B 40 sN o NII NET LL ott Pt Ld pti tt 14 23 32 41 50 59 68 20 15 10 5 0 5 10 15 20 Temperature F Resistance k ohm 14 KHS1872 KHS2472 3 DIMENSIONAL DATA Indoor Unit Unit inch mm 9L LL 8 ce e c c LL c 6c CE LC S 4 9801 2 LL Lv SGE 9 h L elp MOJEN cLVcCSHM 88 51 8 3 eip 0481 5 0 oani SSRI ened 8L c ce ILe Z g elp 9SOU 812 ZE 6L 8 1 8 8 C 862 ZE ECZ L L 9901 91 91 1 c c Lt 6 0 L 15 Outdoor Unit CH1872 23 15 16 5 11 32 11 17 32 Wide tube service valve dia 1 2 12 70 Narrow tube service valve dia 1 4 6 35 34 21 32 880 2 17 32 Unit inch mm 16 CH2472 Outdoor Unit 5 11 32 23 15 16 CE LL bL Narrow tube service valve dia 1 4 6 35 Wide tube service valve dia 5 8 15 88 2 15 16 35 7 16 900 0p4 8 L ce 6c S 2 7 8 Unit inch mm 17 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Indoor Unit KHS1872 Outdoor Unit CH1872 KHS2472 CH2472 Indoor unit Outdoor unit EE O Wide tube Accumulator Service Wide tube
21. Park 1062 Thorndale Avenue 85264189989003 SANYO 2007 Bensenville IL 60106 U S A 1 300 Applewood Crescent Concord Ontario L4K 5C7 Canada W IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard WARNING or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can CAUTION result in personal injury or prod uct or property damage 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 PRECAUTION
22. and Connecting Positive Connector for Outdoor Unit One of the two types of connectors illustrated at left is used Their basic structure is the same for each How to Disconnect Hold the resin connector cover and pull the connector off You cannot disconnect the connector by pulling the wire since it is locked inside Always hold the cover to disconnect See illustration at left For the connector without the resin cover push the lock in the direction of 2 while pulling it off Pull the cover upward How to Connect In order to connect hold the resin cover of the connector and push it in Confirm the click sound for the inside lock When the cover is pulled upward the lock is released with the sequence of 1 and 2 37 8 FUNCTIONS 8 1 Operation Functions Emergency operation Emergency operation is available when the remote controller malfunctions has been lost or otherwise cannot be used To operate the system press the OPERATION button which is also used as the receiver below the unit display Each time this button is pressed the OPERATION lamp changes color to indicate the type of operation Select the desired type of operation COOL GREEN HEAT RED gt STOP Lamp Off tL The set temperature is 4 F 2 C below the detected room temperature in the case of cooling operation and 4 F 2 C above the room temperature in the case of heating operation The flap and fan spee
23. conditions after the completion of self diagnostics a communication error between the indoor unit and outdoor unit might be considered In such a case identify the breakdown section by using the following procedure Refer to Method of Self Diagnostics for the self diagnostics procedure Qulet Timer _ Operation x Off 3 2 1 IK Blinking Mumninated lt Before the Operation gt For terminal strip short circuit work or inter unit wiring removal turn off the power to N WARNING avoid an electric shock Release the terminal strip short circuit after the completion of self diagnostics Do not perform the short circuit work between any other terminals except for N CAUTION specified ones on the specified terminal strip If such work is performed between the incorrect terminals the unit might be broken lt Convenient Tool for Short Circuit Work for example gt i gt Alligator Clip lt Check Items before Troubleshooting Serial Communication Start gt After confirming that the following errors do not exist start the Troubleshooting Serial Communication in Condition E01 and E12 Mis wiring inter unit cable etc 6 Reactor failure defective insulation etc AC power failure 7 High Pressure Switch failure Blown fuse 8 Overload Relay failure Power Relay failure 9 Magnetic Coil failure defective insulation short circuit etc Outdoor Fan Motor failure defective insulatio
24. connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole To take out the remote control unit pull it forward When Holding the Remote When using the remote control unit and during air conditioner operation the Control Unit transmitter on the remote control unit should be pointed toward the receiver on the indoor unit e Make sure that there are no objects between the remote control unit and receiver which could block the signal Ol 801 11EG 11 1 Automatic Operation 12 Operation with the Remote Control Unit This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting AM 004 01 WET DB STEP 2 QUIET MODE STEP 1 FAN SPEED NIGHT SETBACK FLAP HIGH POWER NOTE Check that the circuit breaker on the power panel is turned on Once mode is selected and the unit is preset by following the steps below you can have the air conditioner automatically bring the room to the desired temperature simply by pressing the ON OFF operation button STEP 1 Press the MODE selector button to Press the ON OFF operation button To stop the air conditioner press the ON OFF operation button again NOTE e To change the temperature setting press the temperature setting buttons and change the setting to the desired temperature Ol 801 12 EG Opera
25. mm 1 D3 11 16 L33 9 32 D94 L845 Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection es Run Capacitor Micro F VAC ss Flap Motor Stepping Motor MP24Z3 12V DC 12V Coil Resistance Ohm Each Pair of Terminal 400 796 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area f m DATA SUBJECT TO CHANGE WITHOUT NOTICE 11 2 2 2 Outdoor Unit Outdoor Unit CH1872 Control PCB CB CH1872 Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output C 6RVN93HOM 1 050W Compressor Oil Amount Pints cc FV50S 0 74 350 Coil Resistance Ambient Temp 68 F 20 C Ohm Safety Device Y es Compressor Discharge Temp Control es es Operation cutoff control in abnormal ambient Temp vese Overload Relay Model CS 7L115 Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor Micro F md VAC Crankcase Heater MMX Propeller Q ty Dia inch mm 1 D16 17 32 D420 or B Coil Resistance RED WHT 77 5 Ambient Temp 68 F 20 C WHT BLU 77 5 BLU RED 77 5 Safety Device Type Internal Controller Over Current Protection Yes Run Capacitor Heat Exchanger Coil Fins per inch Face Area ft m External Finish Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE
26. protective device is activated Indoor heat exchanger A Control start B Control end Indoor heat exchanger temperature F C Area Automatic capacity control When Point A has been exceeded the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited At Point B and below overload prevention is ended and control is the same as in the a area Freeze prevention During COOL or DRY operation freezing is detected and operation is stopped when the temperature of the indoor heat exchanger matches the conditions below 1 Freeze prevention operation is engaged when the temperature of the indoor heat exchanger is below 43 F 6 C 2 Restart after freeze prevention operation occurs when the temperature of the indoor heat exchanger reaches 46 F 8 C or above Indoor heat exchanger temperature F C Area Automatic capacity control When the temperature drops below Point A the operation frequency is reduced by a certain proportion Area Frequency increase is prohibited When the temperature reaches Point C or above freezing prevention is ended and control is the same as in the a area When the temperature drops to below 36 F 2 C continuously for 2 minutes or longer the compressor stops Once the freeze condition is detected the air conditioner will Work less than the maximum frequency until it is turned off 40 H Cold air preve
27. the air conditioner regularly at five minute A intervals If the signal from the remote control unit stops for more than 15 minutes due to the loss of the remote control unit or other trouble the air conditioner will switch to the temperature sensor which is built into the indoor unit and control the room temperature In these cases the temperature around the remote control unit may differ from the temperature detected at the air conditioner s position Using the Remote Control Unit How to Install Batteries FAN SPEED NIGHT SETBACK 1 Slide the cover in the direction FLAP HIGH POWER indicated by the arrow and remove it ON TIMER Install two AAA alkaline batteries Make sure the batteries point in the direction marked in the battery compartment C C gt A A v v c c Use a thin object such as the tip of a pen to press the ACL button ACL button The batteries last about six months depending on how much you use the remote control unit Replace the batteries when the remote control unit s display fails to light or when the remote control cannot be used to change the air conditioner s settings e Use two fresh leak proof type AAA alkaline batteries e In replacing batteries follow the instructions as mentioned the sub section How to Install Batteries e If you do not use the remote control unit more than 1 month take out the batteries 10 Ol 801 10 EG Using the Remote Control Unit
28. the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost In the event of power failure the unit will stop When the power is resumed the unit will restart automatically within five minutes by the remote control unit In heating or cooling operation any plastic parts may expand or shrink due to a sudden temperature change In this event a clicking sound may occur This is normal and the sound will soon disappear The remote control unit sends the setting condition to the air conditioner regularly at five minute intervals 17 Setting the Timer QUIET MODE CJ CG FAN SPEED NIGHT SETBACK FLAP HIGH POWER NOTE In the descriptions below the following settings are used for the temperature and time indicator selector button on the bottom front section of the remote control e Temperature F e Time AM PM 1 How to set the present Example To set to 10 30 pm time Operation Indication 7 1 Press the CLOCK button once if The time indication alone flashes the time indicator is not flashing 2 Press the Advance Return 4 The time can be set in 1 minute v button until PM 10 30 is increments Holding down the button displayed advances the time rapidly in 10 minute increments 3 Press the CLOCK button again This completes the setting of the current time 2 How to set the OFF time E
29. 0009900000009000000900000009000000909000009900000909000000009000000090000009090000009000000900000000909000009000000900000000000000000009 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 In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors 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 and 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 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
30. 1 17EG the air conditioner Remote Control Unit Once the room temperature reaches the level that was set the unit s operation frequency is changed automatically During DRY operation the fan speed automatically runs at lower speed for providing a comfortable breeze DRY operation is not possible if the indoor temperature is 59 F or less Because this air conditioner heats a room by drawing in the heat of the outside air heat pump system the heating efficiency will fall off when the outdoor temperature is very low If sufficient heat cannot be obtained with this air conditioner use another heating appliance together with it When the outdoor temperature is low frost or ice may form on the heat exchanger coil reducing heating performance When this happens a microcomputer defrosting system operates At the same time the fan on the indoor unit stops and the OPERATION lamp lights up red and orange alternately until defrosting is completed Heating operation restarts after several minutes This interval will vary slightly depending upon the outdoor temperature and the way in which frost forms For several minutes after the start of heating operation the indoor fan runs at lower speed until the indoor heat exchanger coil has warmed up sufficiently However the fan may remain stopped when the room temperature is low This is because the COLD DRAFT PREVENTION SYSTEM is operating Sometimes the indoor unit may not get to
31. Ai 9 What is the latest self diagnosis result P C board Condition EO1 Outdoor Unit Outdoor Unit Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF Remove the short circuit between the terminals 2 and 3 on the outdoor unit terminal strip Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 4 Indoor Unit Indoor Unit Short circuit between the terminals 2 and 3 on the indoor unit Fig 4 Fig 5 terminal board Fig 5 1 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit 2 Perform the self diagnosis five seconds after the operation start Condition E12 Defect or connection error What is the latest self diagnosis result in the inter unit cable Condition E01 Defect in the indoor unit P C board 47 3 2 Condition E12 Troubleshooting Serial Communication Outdoor Unit Turn off the power and wait until the power lamp LED of the outdoor unit controller is turned OFF Disconnect the cable from the terminal 3 on the Outdoor unit terminal strip Fig 6 Indoor Unit Fig 6 Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit Perform the self diagnosis five seconds after the operation start Condition E01 What is the latest self diagnosis result
32. BTU R NOTE 1 Rating conditions Indoor Unit Entering Air Temp 80 F 26 7 C D B 67 F 19 4 C W B Outdoor Ambient Temp 95 F 35 C D B 2 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 23 Indoor Unit KHS2472 Outdoor Unit CH2472 Power Supply 230V Single Phase 60Hz lt Cooling Capacity gt RATING CAPACIT Y 24 200 BTU h AIR FLOW RATE 600 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F a W B 105 115 an eo m 40 6 46 1 1 24430 23 750 23 010 22310 18 420 11 170 25 360 24 690 23 940 23 260 18 810 11 890 LP 26 250 TEES 24 850 3 24 200 RET 11 500 ULP 27 080 26 ELT T 700 19 90 11 740 27 740 27 120 26 410 25 850 19 570 11 830 SHC TC Total Cooling Capacity BTUI SHC Sensible Heat Capacity BTU R NOTE 1 Rating conditions Indoor Unit Entering Air Temp 80 F 26 7 C D B 67 F 19 4 C W B Outdoor Ambient Temp 95 F 35 C D B 2 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 24
33. DOOR INDOOR ENT TEMP F C AMBIENT TEMP F C 60 65 70 75 80 15 6 18 3 21 1 23 9 26 7 UJ e 0 17 8 TH 11 320 11 320 11 310 11 290 11 270 18 23 5 o 28 2 N W TH Total Heating Capacity BTU h 33 0 38 3 2 43 6 O 48 8 Co NOTE 1 Rating conditions Indoor Unit Entering Air Temp 70 F 21 1 C D B Outdoor Ambient Temp 47 F 8 3 C D B 43 F 6 1 C W B 2 Above data does not take Defrost Operation Overload Prevention Protection and or Cold Air Prevention Protection during heating operation into account For this reason the value may vary from the actual heating characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 27 Indoor Unit KHS2472 Outdoor Unit CH2472 Power Supply 230V Single Phase 60Hz lt Heating Capacity gt RATING CAPACITY 29 000 BTU h AIR FLOW RATE 653 CFM OUTDOOR INDOOR ENT TEMP F C AMBIENT TEMP F C 15 6 18 3 21 1 23 9 26 7 TH Total Heating Capacity BTU h UJ o 2 N Co 23 5 o 2 28 2 N u 33 0 38 3 2 43 6 O 48 8 NOTE 1 Rating conditions Indoor Unit Entering Air Temp 70 F 21 1 C D B Outdoor Ambient Temp 47 F 8 3 C D B 43 F 6 1 C W B 2 Above data does not tak
34. ER IMO m c n im 16 Tc Bl CS eat 16 Pel RENAK 17 Setting the Timer aaaaananaaaaanaaaannaananannnanannnanannnnnannnanannnnannnannnnnnannnnnnannnannanaannuaa 18 Using the 1 Hour OFF Ges Su site us ba Py da kas 20 Tips for Energy Saving aaaaaaaaaaanaaaaanaaananaaananuaananuaananananannnanannanaannanannnanannnannann 20 Adjusting the Airflow Direction aaaaaaasaaaaaa aannaannnannnnnnannnnnannnnnnnnnnnnunannnnnnnnnnannna 21 Operation without the Remote Control Unit essere 22 Care and Cleaning MENDES Rr 22 Meilleure 25 Operating 1 25 Product Information If you have problems or questions concerning your Air Conditioner you will need the following information Model and serial numbers are on the nameplate on the bottom of the cabinet Model No Serial No Date of purchase Dealer s address Alert Symbols The following symbols used in this manual alert you to potentially dangerous conditions to users service personnel or the appliance This symbol refers to a hazard or unsafe WARNING practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe N CAUTION practice which can result in personal injury or product or property damage
35. FF e Operation lamp Repeatedly switches between red and orange illumination Releasing of defrosting Outdoor heating exchanger temp is over 57 2 F 14 C Defrosting operation lasts 12 minutes maximum 2 minutes after it is stopped compressor is ON 4 way valve is ON Outdoor fan is ON NOTE If the air conditioner is turned off during the defrosting cycle it will continue defrosting and turn itself off after defrosting is completed 41 9 TROUBLESHOOTING 9 1 Precautions before Performing Inspection or Repair After checking the self diagnostics monitor turn the power OFF before starting inspection or repair High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 310V even after the power is turned OFF and some time is required for the charge to dissipate Be careful not to touch any electrified parts before the controller LED red turns OFF If the outdoor controller is normal approximately 30 seconds will be required for the charge to dissipate However allow at least 5 minutes for the charge to dissipate if there is thought to be any trouble with the outdoor controller 9 2 Method of Self Diagnostics Follow the procedure below to perform detailed trouble diagnostics 1 If the operation lamp blinks every 0 5 seconds immediately when the power is turned ON there is an external ROM OTP data failure
36. FF 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 Rear side Mounting screws 5 32 x 5 8 4 x 16 mm Included w To prevent loss of the remote control unit you can connect the remote control unit to the mount by passing a string through the remote control unit and attachment hole To take out the remote control unit pull it forward Fig 61 23 8 Address Switch 8 1 Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo 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 62 When the tab is removed the address is automatically set to B Fig 63 3 Press and hold the remote controller ION button and 1 HR TIMER button At the same time press the ACL reset button Use a thin object such as the tip of a pen to press the ACL button When this has been done oP 1 test run appears blinking in the remote c
37. G air conditioner it is very dangerous This air conditioner has no ventilator for intaking fresh air from outdoors You must open doors or windows frequently when you use gas or oil heating appliances in the same room which consume a lot of oxygen from the air Otherwise there is a risk of suffocation in an extreme case Do not turn the air conditioner on and off from the power mains switch N CAUTION Use the ON OFF operation button Do not stick anything into the air outlet of the outdoor unit This is dangerous because the fan is rotating at high speed Do not let children play with the air conditioner Do not cool or heat the room too much if babies or invalids are present Ol 801 4 EG Names of Parts Pirintaxes INDOOR UNIT L EN Nt Air outlet ES E Remote control unit Drain hose gt c e Refrigerant tubes OUTDOOR UNIT Air outlet NOTE This illustration is based on the external view of a standard model NOTE Consequently the shape may differ from that of the air conditioner which you have selected This air conditioner consists of an indoor unit and an outdoor unit You can control the air conditioner with the remote control unit Air Intake Air from the room is drawn into this section and passes through air filters which remove dust Conditioned air is blown out of the air conditioner through the air outlet Remote Control Unit The wireless remote
38. Ib 0 76 10 x 0 20 2 76 Kg For the remaining refrigerant refer to the instructions of the refrigerant manufacturer If using a charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Prepare an evacuated charging cylinder beforehand CAUTION To prevent the composition of R410A from changing never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 3 Do not use the refrigerant if the amount in the charging cylinder is less than 20 58 Configuration and characteristics of cylinders Valve Single valve Charge liquid refrigerant with cylinder in up side down position Fig 1 Single valve with siphon tube Charge with cylinder in normal position Fig 2 Charging cylinder Ope Refrigerant cylinder Fig 3 11 6 In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when refrigerant has been leaking from the unit Follow the procedure described below to locate points of leaks and carry out repairs then recharge the refrigerant 1 Detecting Leaks Use the detector for R410A to locate refrigerant leak points 2 Recovering refrigerant Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for R410A instead Do not reuse the recovered refrigerant because its composition will
39. Ibs kg a 4 23 0 12 12 71 0 36 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Heating Indoor air temperature 70 F D B Outdoor air temperature 95 F D B 75 F W B Outdoor air temperature 47 F D B 43 F W B oo Indoor Unit KHS2472 Outdoor Unit CH2472 Voltage Rating 208V Single Phase 60Hz lt 208V gt Total Capacity BTU h 24 200 4 000 to 24 200 29 000 4 400 to 29 000 E Sensible Capacity Brun BOOT E LatentCapaciy BIUh 940 Q Air Circulation High ft min m3 h 600 1 020 653 1 110 Moisture Removal High Pintsh PB 2 Power Input W 2 355 280t02 355 2 490 290 2 490 Power Factor wj 194 JX A X JZJ9 EER BTUnW 1003 S COP ww SEER BTUWh O o u HsPF _______ _______ ____ 85________ gt Compressor Locked Rotor Amperes 17 5 Fuse or Circuit Breaker Capacity Controls Temperature Control Microprocessor Thermister 1 Thermister Control Uni Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical R410A 7 4 30 1 950 Operation Sound Indoor Hi Me Lo Qt dB A 47 44 41 30 46 43 40 30 Qt Quiet mode Outdoor Hi dB A 55 56 Refrigerant Tubing Connections Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diam
40. L mode the mark appears in the display and the remote control unit will automatically adjust the set temperature to save energy FLAP button Press this button either to select the setting of the airflow direction to the auto flap in each mode or one of the six possible positions manually or to select the sweep function which moves the flap up and down automatically Auto flap setting If selected in a heating operation the flap is set to position 3 in the following chart If selected in a cooling or dry operation the flap is set at position 7 in the following chart The airflow direction can be set manually six positions 7 The flap moves up and down automatically NOTE When you press the FLAP button the air flow direction will be changed one by one as follows 1 2 3 4 5 6 7 8 O TSI 3 TS ASAS 197 SWEEP HIGH POWER button If this button is pressed during HEAT DRY COOL or FAN operation the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High ON TIME OFF TIME setting No display The timer does not operate buttons The air conditioner starts at the set time The air conditioner stops at the set time The air conditioner stops and starts or starts and stops at the set times every day For details see Setting the Timer NOTE The indoor fan runs continuously when the system is in n
41. MPaG High pressure at wide tube service valv 1 9 23 32 41 50 59 68 77 C5 0 5 0 15 20 25 Outdoor inlet air temp F C 2 Operating current performance chart 32 41 0 5 25 Outdoor inlet i 5 5 k u j 15 M 44 AMT 5 13 al E 12 Ll ll 77 3 Indoor discharge air performance chart Indoor discharge air temperature F C 23 32 41 50 59 68 77 C5 0 9 10 15 20 25 Outdoor inlet air temp F C NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 8 2 Overload prevention during heating 22 5 2 Cooling Capacity Indoor Unit KHS1872 Outdoor Unit CH1872 Power Supply 230V Single Phase 60Hz lt Cooling Capacity gt RATING CAPACITY 17 500 BTU h AIR FLOW RATE 524 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F a W B 105 115 ree T M 5 40 6 46 1 ENIM 17 710 17 180 16 600 16 040 15 320 10 530 LP 18 460 17 920 17 380 16770 16040 10 770 63 17 2 PL a n uu 67 19 4 71 21 7 EMI 19880 ETT 18 760 18220 17 460 11 160 20 470 19 940 1 9 350 18 830 18 070 11 270 SHC SHC SHC SHC TC Total Cooling Capacity BTU SHC Sensible Tem Capacity
42. OID e heat sources exhaust fans etc Fig 4 e damp humid or uneven locations DO choose a place as cool as possible choose a place that is well ventilated allow enough room around the unit for air intake exhaust and possible maintenance Fig 5a or 5b e provide a solid base level concrete pad concrete block 4 x 1 4 10 x 40 cm or 6 x 1 4 15 x 40 cm beams or equal a minimum of 4 10 cm or 6 15 cm above ground level to reduce humidity and protect the unit against possible water damage and decreased service life Figs 5c and 5d or 5e CAUTION Install cushion rubber under unit s feet to reduce vibration and noise Fig 5f use lug bolts or equal to bolt down unit reducing vibration and noise Install in a location where no antenna of a television or radio exists within 10 3 m A solid base must not cover the hole of the bottom plate Anchor bolts CH1872 i A 221 AN AN INI N HV N Mill WW Ml N NIN AN N WW NUN N MM Min 4 10 cm Air intake AN imi AKI N N N WW WW WW RW Wn A AW N 22 z Concrete or equal T ANNE W AT 49 cm Mm Fig 5d g CH2472 Anchor bolts 4 pcs S
43. Outdoor Unit CH2472 Control PCB CB CH2472 Control Circuit Fuse 250V 25A Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output G8T265FU1JW 2 410W Compressor Oil Amount Pints cc FV50S 1 49 700 Coil Resistance Ambient Temp 68 F 20 C Ohm Safety Device Y es Compressor Discharge Temp Control es es Operation cutoff control in abnormal ambient Temp Overload Relay Model CS 7L115 Operation Temp Open 239 F 115 C Close 203 F 95 C Run Capacitor VAC Crankcase Heater 230V 30W Propeller Q ty Dia inch mm 1 D18 1 8 D460 NoofPoles O FNommalOuput o ooo Ambient Temp 68 F 20 C Safety Device Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Coil Aluminum Plate Fin Copper Tube Rows Fins per inch 18 1 Face Area 6 40 0 595 1 DATA SUBJECT TO CHANGE WITHOUT NOTICE 3 2 3 Other Component Specifications Indoor Unit KHS1872 KHS2472 Outdoor Unit CH1872 CH2472 Indoor heat exchanger sensor Model PTM D51H S3 2 TH1 Indoor air temp sensor Compressor temp sensor Model PTM D51H S3 2 TH2 Model TKS293B gt Resistance k ohm 50 59 68 77 86 95 104 0 32 50 68 86 104 122 140 158 176 194 A n ee a 0 10 20 30 40 50 60 70 80 90 gt Temperature F gt Temperature F C
44. POWER button The rj mark appears in the display To cancel press HIGH POWER button again e When the HIGH POWER button is pressed the unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High e HIGH POWER Mode cannot be used when the operation mode is Automatic Operation e QUIET Mode and HIGH POWER Mode cannot be used at the same time QUIET MODE NOTE When set to High fan speed during heating operation the fan runs at High fan speed even though the Z mark is displayed e Depending on the operating conditions the fan speed may be increased by a small amount only FAN SPEED NIGHT SETBACK FLAP HIGH POWER amp 8 ION Mode The ION mode is used during operation to generate negative ions that freshen up the air in the room Press the ION button The 8 mark appears in the display To cancel press ION button again e The indoor unit s ION lamp lights up while negative ions are being generated e ION on is the remote control unit s initial setting he negative ions are generated from the negative ion generator 16 OI 801 16 EG Special Remarks DRY Operation How it works Heating Operation Heating performance Defrosting Cold draft prevention e Cooling 3x Operation Power failure during operation Clicking Sound Clicking sound is heard from Ol 80
45. Power failure 1 Restore power 2 Leakage circuit breaker tripped 2 Contact service center 3 Line voltage is too low 3 Consult your electrician or dealer 4 Batteries in remote control unit have 4 Replace batteries run down OPERATION lamp blinks and air Trouble in system Contact service center conditioner does not operate Compressor runs but soon stops Obstruction in front of condenser coil Remove obstruction Poor cooling or heating performance 1 Dirty or clogged air filter 1 Clean air filter to improve airflow Heat source or many people in 2 Eliminate heat source if possible room Doors and or windows are open Shut them to keep the heat or cold out Obstacle near air intake or air Remove it to ensure good airflow discharge port Thermostat is set too high for Set the temperature lower or cooling or too low for heating higher Outdoor temperature is too low for Consult your dealer or try to use heating another heat appliance Clicking sound is heard from the air In heating or cooling operation any This is normal and the sound will soon conditioner plastic parts may expand or shrink due disappear to a sudden temperature change In this event a clicking sound may occur OPERATION lamp lights but outdoor 1 The use of cellular phones near the 1 Turn off the power then restart the unit will not run air conditioner may cause air conditioner after a while d
46. S L AAT CJ S 22222222 Min 6 Air intake 6 15 cm 222222222 22 22222 KE BEL Z 2222222227221 222222227 Concrete SEAT EEE or equal e 5 cm ud m NO d Hot air Lie y 1 Outdoor unit Fig 4 CH1872 Air intake Min 4 10 cm Valve id side 4 Min 10 y 25cm F7 Min g oe 6 em Air discharge Min f 1 4 40cm Fig 5a CH2472 Air intake Min 6 15 Valve S in 10 4 25 Air discharge Min a V 4 10 cm 2 1 8 50 Fig 5b Exhaust fan D Heat source Obstacle above I D Min Min A S 2 m D lt d E Ground Min 4 10 cm Air intake Obstacle above VA J 9 Mi _ Min 1 Tm 7 2 m 2 H x H lt 1 O amp Ac 29 A H 4 Ground Min 6 15 cm Air intake N AW AN Mi 22 ze N Mi N MI AN QW NN NN AN MI AN NW NN IN W IN A MINNI AN REESE Mill N N SW ANS N Ts A j N SQ z 2 INN WW N Cushion rubber 3 How to Install the Indoor Unit 3 1 Remove the Rear Panel from the Unit 1 Remove and discard the set screw on the rear pa
47. S when wiring ELECTRICAL SHOCK 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 When Transporting 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 60099000
48. TECHNICAL amp SERVICE MANUAL SANY KHS1872 1872 KHS2472 2472 Destination North America DC INVERTER SPLIT SYSTEM AIR CONDITIONER Indoor Model No Product Code No Outdoor Model No Product Code No KHS1872 1 852 099 85 CH1872 1 852 330 38 KHS2472 1 852 099 86 CH2472 1 852 330 39 KHS1872 KHS2472 IMPORTANT These air conditioners employ new refrigerant R410A Pay special attention when servicing the unit n410A CH2472 REFERENCE No SM700656 05 Important Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe installation and trouble free operation you must Carefully read this instruction booklet before beginning Follow each installation or repair step exactly as shown Observe all local state and national electrical codes Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death This symbol refers to a hazard or unsafe practice which can CAUTION result in personal injury or product or property damage If Necessary Get Help These instructions are all you need for most installation sites and maintenance conditions If you require he
49. aanunnnnnananaaannanaannaananaanananananaaaa 59 11 7 Charging Additional Refrigerant 60 11 8 R tro Fitting Existing Systems 60 INSTRUCTION MANUAL 1 INSTALLAION INSTRUCTIONS esee tete A 2 1 OPERATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp 95 F D B 71 F W B 115 F D B Cooling 67 F 57 F W B 0 F D B 80 F 67 F W B 75 F 65 F W B eatin i D8 WB O FDB 2 SPECIFICATIONS 2 1 Unit Specifications Indoor Unit KHS1872 Outdoor Unit CH1872 Voltage Rating 230V Single Phase 60Hz lt 230V gt Total Capacity BTU h 17 500 4 000 to 17 500 20 400 4 400 to 20 400 Sensible Capacity 777777 BrUm _ y oo 2 LatentCapaciny Bmum 440 Q Air Circulation High ft min m h 524 890 541 920 Moisture Removal High Pintsh PB 2 Power Input W 1 500 250 to 1 500 1 575 270 to 1 575 Power Factor lt EER BTUNMW 1407 5 0 7 2 COP WwW BT SEER BTUIWh 120 J A w HSPF BIUWN 4 10 gt Compressor Locked Rotor Amperes 17 5 Fuse or Circuit Breaker Capacity Controls Temperature Control Microprocessor Thermister
50. acksaw or the like Figs 20 and 21 b Right rear or left rear tubing In this case the corner of the frame need not be cut To mount the indoor unit on the rear panel Hang the 2 mounting slots of the unit on the upper tabs of the rear panel Fig 22 3 6 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 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and cir cuit breaker for overcurrent protection provided in the exclusive line To prevent possible hazards due to insulation failure the unit must be grounded 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 Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan Unauthorized changes in the internal wiring can be very dangerous The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes Frame Left tubing outlet Fig 20 S amp Right tubing SX outlet EN Fig 21 Fig 22 3 7 Recommended Wire Length and Diameter Regulations on wiring diameter differ from locality to locality
51. anifold valve to the service port on the wide tube service valve Service valve N eu eur External diameter of service port R410A 5 16 Fig 60a 9 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 cm fully close the wide tube valve stem Then quickly stop the unit 5 Disconnect all gauges and hoses and replace the valve caps as they were before 22 7 Remote Control Unit Installation Position The remote control unit can be operated from either a non fixed position or a wall mounted position To ensure that the air conditioner operates correctly do not install the remote control unit in the following places In direct sunlight 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 between the remote con trol unit and the air conditioner since a check signal is sent from the remote control unit every 5 minutes 7 1 Mounting on a Wall Before mounting the remote control unit press the ON O
52. are displayed NOTE e The ON OFF combination timer uses the current time as the reference and it is activated starting from whichever set time comes first e With the ON OFF combination timer the settings are repeated every day e You can check the timer ON OFF times after you have set them by pressing the ON TIME and OFF TIME setting buttons Press the CANCEL button e When either an ON or OFF timer is to be canceled press the button corresponding to the timer whose program is to be canceled and then press the CANCEL button The airflow direction fan speed and temperature setting can be changed after a timer program has been set even when the unit is stopped Even when operation is stopped during an ON timer program the unit will start operating when the set time is reached provided that the program is not canceled e When the ON timer and OFF timer are set to the same time the timer operates as if it is turned off 19 1 1 Hour OFF Timer 2 Operation together with the DAILY ON OFF REPEAT Timer Do not Do 20 Using the 1 Hour OFF Timer This function causes the unit to operate for one hour and then stop regardless of whether the unit is on or off when this button is pressed The indicator in the display indicates that this function is operating Setting procedure Regardless of whether the unit is operating or stopped press the 1 HR TIMER button appears in the display Cancellatio
53. as made and then another 2 F after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed Setting temperature L Press the NIGHT 30 min SETBACK button B In Heating Mode x When the night setback mode is selected the air conditioner automatically lowers the temperature setting 4 F when 30 minutes have passed after the selection was made and then another 4 F after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle heating is needed Setting p temperature Press the NIGHT 30 min 30 min Time SETBACK button Ol 801 15EG 15 Operation with the Remote Control Unit continued 6 QUIET Mode QUIET Mode is used to reduce the fan sound of the indoor unit Press the QUIET button The Mal mark appears in the display To cancel press QUIET button again e n QUIET Mode the fan rotates at a slower speed than the fan speed setting e Ifthe unit is already operating with a very low airflow the fan sound may not change even if the QUIET button is pressed HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes except automatic operation Press the HIGH
54. atic operation 24 Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period 1 Hour OFF Timer This timer can be set to automatically turn off the unit at any time after one hour Night Setback Pressing this button changes the setting of the room temperature thermostat allowing you to set the temperature at whatever level that you find comfortable Automatic and 3 step Fan Speed Auto High Medium Low Air Sweep Control This function moves a flap up and down in the air outlet directing air in a sweeping motion around the room and providing comfort in every corner Auto Flap Control This automatically sets the flap to the optimum position during heating cooling and drying operation Automatic Switching between Cooling and Heating This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting Hot Start Heating System Right from the start the air is warm and comfortable This system prevents any cold blasts at the beginning while the heat pump is warming up or even defrosting Automatic Restart Function for Power Failure Even when power failure occurs preset programmed operation can be reactivated once power resumes High Power Operation If not in Auto Operation the unit operates at maximum output for 30 minutes regardless of the desired temperatu
55. bacco This air clean filter cannot remove harmful gases or vapors nor ventilate air in the room You must open doors or windows frequently when you use gas or oil heating appliances Otherwise there is a risk of suffocation in extreme cases The air clean filter needs to be installed behind the air intake grille 1 Remove the air intake grille 2 Install the air clean filter in the position shown in the figure 3 Remount the air intake grille mm 0 T Air clean filter e In general the filter should be sucked to remove dust in low fan speed of a vacuum cleaner once every three months e If there is heavily grime on the filter soak the filter in lukewarm water with neutral detergent diluted 1 500 for 1 to 2 minutes then wash tt e Rinse the filter in clean water then let it dry on the towel in room temperature Do not bend nor give excessive force onto the air clean filter e If the filter surface is heavily blocked with dirt or damaged replace it with new one Purchase a replacement filter at your local dealer model STK FDXB e Wipe clean using a soft dry cloth e To remove stubborn dirt moisten a cloth in warm water no hotter than 104 F wring thoroughly and then wipe e he air intake grille can be removed in order to wash it with water Hefer to How to remove the anti mo
56. c appliances J N n AWG American Wire Gauge WIRING SYSTEM DIAGRAM INDOOR UNIT OUTDOOR UNIT Disconnect switch Field supply Terminal Ja ee S Power supply Single phase 230 208V 60HZ Grounding line Fig 23 au Disconnect switch may be required by national or local codes A N man Always comply with national and local code requirements 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 e Do not run wiring for antenna signal or power lines of television radio stereo telephone security system or intercom any closer than 3 4 1 m from the power cable and wires between the indoor and outdoor units Electrical noise may affect the operation 10 3 8 Wiring Instructions for Inter unit Connections 1 6 Insert the inter unit wiring according to local codes into the through the wall PVC pipe Run the wiring toward the indoor side allowing approx 10 25 cm to extend from the wall face Fig 24 Grasp both ends of the air intake grille and remove it by opening towards the front and pulling towards you Hemove the screw on the right side cover plate and open the cover Fig 25 Houte the inter unit wiring from the back of the indoor unit and pull it toward the front for connec tion Fig 26a 26b Connect the inter unit wiring to the correspon
57. ch Fig 51 Union Flare nut Fig 51 17 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 52 b To fasten the flare nuts apply specified torque as Table 6 Tube Dia Tightening Torque 1 4 6 35 mm Approx 120 160 Ibs in 140 180 kgf cm 3 8 9 52 mm Approx 300 360 Ibs in 340 420 kgf cm 1 2 12 70 mm Approx 430 540 Ibs in 490 610 kgf cm 5 8 15 88 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 Fig 53 The thickness of the insulation should be a minimum 5 16 8 mm Fig 54 5 6 Taping the Tubes Nes After a tube has been insulat ed never try to bend it into a narrow curve as this may cause the tube to break or crack 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 K 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 55 3 Clamp the tubing b
58. continued How to Use the Remote When using the remote control unit always point the unit s transmitter head Control Unit directly at the air conditioner s receiver Air conditioner INdoor unit NN 5 Receiver Remote control Ly Transmitter head unit 7 Remote Control Unit The remote control unit may be operated either from a non fixed position or from Installation Position wall mounted position To ensure that the air conditioner operates correctly DO NOT install the remote control unit in the following places DO NOT In direct sunlight e Behind a curtain or other places where it is covered e More than 26 feet 8 m away from the air conditioner e Inthe path of the air conditioner s airstream e Where it may become extremely hot or cold e Where it may be subject to electrical or magnetic noise e Where there is an obstacle between the remote control unit and air conditioner since a check signal is sent from the remote control unit every 5 minutes Mounting the Remote Control Before mounting the remote control unit press the ON OFF operation button at Unit 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 Rear side unit mount 4 S is ap Mounting screws n 5 32 x 5 8 4 x 16 mm s included S P e To prevent loss of the remote control unit you can
59. control unit controls power ON OFF operation mode selection temperature fan speed timer setting and air sweeping Refrigerant Tubes The indoor and outdoor units are connected by copper tubes through which refrigerant gas flows Drain Hose Moisture in the room condenses and drains off through this hose Outdoor Condensing Unit The outdoor unit contains the compressor fan motor heat exchanger coil and other electrical components Ol 801 5EG 5 Unit Display and Operation Button INDOOR UNIT IMPORTANT OPERATION OPERATION lamp rR YY TIMER TIMER lamp void using radio equipment BIN i QUIET r QUIET lamp such as mobile phone near I ION lamp within 4 ft the remote NX lt control receiver Some radio N precy OPERATION button equipment may cause E malfunction of the unit If the trouble happens disconnect power and restart the air conditioner after a few minutes REMOTE CONTROL receiver OPERATION button OPERATION lamp REMOTE CONTROL receiver This section picks up infrared signals from the remote control unit transmitter When the remote control cannot be used pressing this button enables heating and cooling operation Each time this button is pressed the type of operation conducted is indicated by the changing color of the OPERATION lamp Press the button and select the lamp color that suits your preference for operation Cooling operati
60. d filter attached to the rear of the air intake grille Cleaning Use a vacuum cleaner to remove light dust If there is sticky dust on the filter wash the filter in lukewarm soapy water rinse it in clean water and dry it How to replace the anti mold 1 With the FRONT mark of the filter anti mold filter at the front align the two indentions near the mark with the hooks at the rear of the air intake grille and then mount the anti mold filter Anti mold filter 2 Allow the edge of the air intake grille to slide into the top of the Groove indoor unit and then insert it all the way inside Pin Air intake grille 3 To attach the air intake grille to Air intake grille the indoor unit press its bottom right and left corners as well as its bottom center into place NOTE Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit Ol 801 23EG 23 Air Clean Filter ANETO How to install the air clean filter How to clean the air clean filter Cleaning the main unit and remote control unit Removing and remounting the air intake grille Washing the grille with water Cleaning the negative ion generator ANETO 24 Care and Cleaning continued The air clean filter removes dust and dirt from the air and reduces odors and smoke from to
61. d settings are AUTO H AUTO cooling heating operation Selecting the operation mode When AUTO mode is selected the microprocessor calculates the difference between the set temperature and the room temperature and automatically switches to Cooling or Heating mode Room temp gt Set temp COOL Room temp lt Set temp HEAT As shown by the example in the figure below with AUTO cooling heating operation the mode changes between Heating and Cooling mode according to changes in the relationship between the current room temperature and the set temperature Example Example of operation in AUTO mode with the set room temperature at 74 F 23 C Room temp Set temp Compressor 38 ll SENSOR DRY During DRY operation the system adjusts the room temperature and fan speed according to the conditions in the room in order to maintain a comfortable room environment SENSOR DRY operation DRY operation is as shown in the figure below Load COOL zone Conditions are monitored at all times when the room temperature is below 59 F 15 C The compressor operation frequency varies The indoor fan operates with 1 f fluctuation The compressor operates at a low operating frequency The indoor fan operates with 1 f fluctuation Monitoring operation takes place when the room temperature is below 59 F 15 C or more than 5 F 3 C below the set temperature When the monitoring range is entered t
62. ded Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came with the indoor unit Charge additional refrigerant in liquid state only Never charge additional refrigerant if refrigerant is leaking from the unit Follow instructions given in 11 6 In Case Refrigerant is Leaking and completely carry out repairs Only then should you recharge the refrigerant 11 8 Retro Fitting Existing Systems 11 8 1 Use of Existing Units Never use new refrigerant R410A for existing units which use R22 This will cause the air conditioner to operate improperly and may result in a hazardous condition 11 8 2 Use of Existing Tubing e lf replacing an older unit that used refrigerant R22 with a R410A unit do not use its existing tubing Instead completely new tubing must be used 60 APPENDIX INSTRUCTION MANUAL KHS1872 CH1872 KHS2472 CH2472 Ol 852 6 41 80 801 00 2 A 1 Features This air conditioner is an inverter type unit that automatically adjusts capacity as appropriate Details on these functions are provided below refer to these descriptions when using the air conditioner Microprocessor Controlled Operation The interior compartment of the remote control unit contains several features to facilitate automatic operation easy logically displayed for easy use Simple One touch Wireless Remote Control The remote control unit has several features to facilitate autom
63. ding terminals on the terminal plate Fig 26a 26b while referring to the wiring diagram Be sure to secure the wiring with the provided clamp When closing the air intake grille press the bottom right and left corners and center Fig 27 Please refer to How to replace the grille on page 8 for installing the air intake grille 11 Cover Inter unit wiring Lock nut Top of conduit connector Fig 26b Loose wiring may cause the terminal to overheat or result in unit malfunction A fire hazard may also exist There fore be sure all wiring is tightly connected When connecting each power wire to the corresponding terminal follow 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 28 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 com pletely using a screwdriver b For Outdoor Unit H 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 29 2 Using a scr
64. door unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate Fig 33 For tubing choose either the right or left tubing direction and follow the steps below This work can be made easi er by placing padding material such as styrofoam at the rear right side of the indoor unit Fig 34 Right side tubing 1 Shape the refrigerant tubing so that it can easily go into the wall hole Fig 35 2 Push the wiring refrigerant tubing and drain hose through the hole in the wall Adjust the indoor unit so it is securely seated on the rear panel Fig 36 3 Carefully bend the tubing if necessary to run along the wall in the direction of the outdoor unit and then tape as far as the fittings See Caution on page 18 The drain hose should come straight down the wall to a point where water runoff won t stain the wall 4 Connect the refrigerant tubing to the outdoor unit After performing a leak test on the connecting part insulate it with the tubing insulation Fig 37a Also refer to Section 5 4 Connecting Tubing between Indoor and Outdoor Units 5 Assemble the refrigerant tubing drain hose and conduit including inter unit wiring as shown in Fig 37b Insulation Fig 37a Conduit Inter unit wiring Fig 37b Drain hose i Fig 33 Padding material Fig 34 Rear panel Cover Refrigerant tubing I
65. e 2 Contact failure at connector 3 Indoor PCboard failure 4 way valve switching failure 1 4 way valve failure heat pump model only Indoor zero cross failure 2 Outdoor PCboard failure alu No refrigerant protection 1 Service valve not opened 2 Shortage of refrigerant He Tas DC compressor drive circuit failure 1 Open phase 2 Outdoor PCboard failure Outdoor fan operating failure 1 Fan motor failure 2 Contact failure at connector 3 Outdoor PCboard failure Lt Lt m 22 O O O O O jojo wW N O R WIN communications failure 1 Mis wiring 2 Blown fuse 3 Power Relay failure 4 Outdoor PCboard failure E12 Outdoor power supply open phase aR NM Outdoor coil freezing See detailed flowchart in this section pe la a k h p k l psum xt bs fa tet latte x Li K EG Freeze prevention operation activated 1 Indoor fan system failure 2 Shortage of refrigerant 3 Low temperature operation 43 2 If the self diagnostics function fails to operate Check the indoor unit Is the fuse blown Normal e No indicators illuminate and the indoor fan does not rotate Check the power voltage Blown Replace the circuit board or the fuse Replace the controller 44 9 3 Checking the Indoor and Outdoor Units 1 Checking the indoor unit C Check tems unit operation Use the re
66. e Defrost Operation Overload Prevention Protection and or Cold Air Prevention Protection during heating operation into account For this reason the value may vary from the actual heating characteristics 3 Above data represents the value when the operation frequency of a compressor is fixed 28 5 5 Air Throw Distance Charts Indoor Unit KHS1872 Room air temp 80 F 26 7 C 9 Fan speed High Horizontal distance ft Axis air velocity ft sec Vertical distance ft Flap angle O Axis air velocity 0 Flap angle 30 Axis air velocity 30 Room air temp 70 F 21 1 C Fan speed High Horizontal distance ft 5 10 15 20 25 30 Axis air velocity ft sec Vertical distance ft Flap angle 45 Axis air velocity 45 angle 60 Axis air velocity 60 29 Indoor Unit KHS2472 Room air temp 80 F 26 7 C 9 Fan speed High Horizontal distance ft Axis air velocity ft sec Vertical distance ft Flap angle O Axis air velocity 0 Flap angle 30 Axis air velocity 30 Room air temp 70 F 21 1 C Fan speed High Horizontal distance ft 9 10 15 20 25 30 Axis air velocity ft sec Vertical distance ft Flap angle 45 Axis air velocity 45 Flap angle 60 Axis air velocity 60 30 6 ELECTRICAL DATA
67. e following is the HAB oil generally used Esso ZERICE S32 For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 56 11 5 In Case of Compressor Malfunction CAUTION e Should the compressor malfunction be sure to make the switch to a replacement compressor as quickly as possible e Use only the tools indicated exclusively for R410A See 11 3 Tools Specifically for R410A 11 5 1 Procedure for Replacing Compressor 1 Recovering refrigerant e Anyremaining refrigerant inside the unit should not be released to the atmosphere but recovered using the refrigerant recovery unit for R410A e Do notreuse the recovered refrigerant since it will contain impurities 2 Replacing Compressor e Soon after removing seals of both discharge and suction tubes of the new compressor replace it quickly 3 Checking for sealing e Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas 4 Evacuation e Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back e The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 0 883 cu ft
68. eaning any electrical parts EVAPORATOR TERMINAL BASE BLK GRN YEL 990 CONNECTOR iE A WHT 10P WHT gg ajs jojn FLAP MOTOR IND LAMP ASSY ROOM THERMISTOR BLK n MNT BLK no COIL THERMISTOR FAN MOTOR 8FA2 5257 70500 0 33 Outdoor Unit CH1872 To avoid electrical shock hazard be sure to WARNING disconnect power before checking servicing and or cleaning any electrical parts REACTANCE L WHT WHT POWER RELAY 2P CONNECTOR WHT N WHT WHT Arf GRN YEL GRN YEL HIC HIC BD BD HIC HIC AC AC2 2 E1 E FERRITE TERMINAL CORE H CONTROLLER TO INDOOR UNIT COMP A TH COIL OUTDOOR PVI eee 712 mej 042220151617 111311 Hesa gt E a O 2 2 Q T QA on BLK BLK BLK BLK YEL YEL FERRITE PNK CORE HIGH PRESSURE SWITCH BLK 1173 BLK 2P CONNECTOR BLK COMPRESSOR THERMISTOR OUT DOOR THERMISTOR COIL THERMISTOR 7P CONNECTOR WHT 2P CONNECTOR WHT AA LU LU MAGNETIC COIL GRN YEL OVERLOAD RELAY AWAY VALVE COMPRESSOR MOTOR OLR FAN MOTOR COIL 2P CONNECTOR RED 8FA2 5257 64000 2 34 Outdoor Unit CH2472 To avoid electrical shock hazard be sure to AN WARNING disconnect power before checking servicing and or cleaning any electrical parts REACTANCE L WHT WHT 1P CONNECTOR WHT POWER RELAY 1P CONNECTOR WHT I
69. er supply lines are connected on the terminal plate Fig 2 10 1 4 Measurement of Insulation Resistance for Electrical Parts Disconnect the lead wires of the desired electric part from terminal plate capacitor etc Similarly disconnect the connector Then measure the insulation resistance Figs 3 and 4 Refer to Electric Wiring Diagram If the probe cannot enter the poles because the hole is too narrow then use a probe with a thinner pin 52 Ground wire Probe Insulation tester Fig 1 Terminal plate ae SII V W Clip A Insulation tube or tester metallic part Q Copper tube or metallic part O Insulation tester Fig 3 From fan motor compressor and other parts p ERR Metallic Clip Insulation tester Fig 4 10 2 Checking Continuity of Fuse on PCB Ass y Remove the PCB Ass y from the electrical component box Then pull out the fuse from the PCB Ass y Fig 5 e Check for continuity using a multimeter as shown in PCB Ass y Fig 6 9 S Fig 5 Fuse Fig 6 53 11 REFRIGERANT R410A SPECIAL PRECAUTIONS WHEN SERVICING UNIT 11 1 Characteristics of New Refrigerant R410A 11 1 1 What is New Refrigerant R410A R410A is a new refrigerant that contains two types of pseudo non azeotropic refrigerant mixture Its refrigeration capacity and energy efficiency are about the same level as the c
70. eter Wide tube inch mm o Unit Dimensions inch 111 23 32 x 41 15 16 x 8 19 32 29 1 8 x 35 7 16 x 12 19 32 g Height x Width x Depth mm 298 x 1 065 x 218 740 x 900 x 320 Package Dimensions inch 11 3 8 x 44 7 8 x 14 29 32 33 27 32 x 40 5 8 x 16 1 4 6 Height x Width x Depth mm 289 x 1 140 x 379 860 x 1 032 x 413 2 Weight Net Ibs kg E Shipping Ibs kg a 4 23 0 12 12 71 0 36 DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks Rating conditions are Cooling Indoor air temperature 80 F D B 67 F W B Heating Indoor air temperature 70 F D B Outdoor air temperature 95 F D B 75 F W B Outdoor air temperature 47 F D B 43 F W B 2 2 Major Component Specifications 2 2 1 Indoor Unit Indoor Unit KHS1872 Control PCB CB KHS1872 Control Circuit Fuse 250V 3A Remote Control Unit RCS 4HVPIS4U Q ty Dia and Length inch mm 1 D3 11 16 L33 9 32 D94 L845 No Pe Pri Ambient Temp 68 F 20 C Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Micro F VAC Flap Motor Coil Resistance Ohm Each Pair of Terminal 400 7 Ambient Temp 77 F 25 C Heat Exchanger Coil Face Area f m DATA SUBJECT TO CHANGE WITHOUT NOTICE 10 Indoor Unit KHS2472 Control PCB CB KHS2472 Control Circuit Fuse 250V 3A Remote Control Unit RCS 4HVPIS4U Q ty Dia and Length inch
71. ewdriver 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 termi nal plate and fix it securely with the removed termi nal screw using a screwdriver 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 30 and 31 2 Using a screwdriver remove the terminal screw s on the terminal plate 3 Using a ring connector fastener or pliers securely clamp each stripped wire end with a ring connector Fig 30 4 Place the ring connector wire and replace and tighten the removed terminal screw using a screw driver Fig 32 12 Special washer b 9 32 7 mm ACTUAL STRIP Size F SK Fig 28 E Solid wire Loop a O D 5 n Insulation Fig 29 Stranded wire Ring to M 0 Fig 30 Twist wire ends B COM Fig 31 P Screw ao L D Screw and Ring connector special washer Terminal plate Ring 2 connector ZZ Wire Fig 32 3 9 Mounting 1 To install the indoor unit mount the indoor unit onto the 2 tabs on the upper part of the rear plate 2 Hold down the air discharge outlet and press the lower part of the in
72. f the indoor unit and hold it with clamps Figs 40a and 41 Xa y Hear panel Hole in wall e E Bent part Wide tube Narrow tube Fig 38 Drain hose Fig 40a Screw hole Insulation Drain bracket Drain hose Drain hose Fig 40c Refrigerant tubing Inter unit wiring Conduit OA VL Fig 41 14 To unmount indoor unit Press the 2 A marks on the lower part of the indoor unit and unlatch the tabs Then lift the indoor unit and unmount Fig 42 3 10 Drain Hose a The drain hose should be slanted downward to the outdoors Fig 43 b Never form a trap in the course of the hose c Ifthe drain hose will run in the room insulate the hose with insulation so that chilled condensation will not damage furniture or floors Fig 44 Foamed polyethylene or its equivalent is recom mended NE Do not supply power to the unit or operate it until all tubing and wiring to the out side unit are completed Risk of Electric Shock 15 T Push Fig 42 Slant Indoor unit Drain hose Fig 43 7 Condensation Insulation material 2 Locally purchased must be used Fig 44 4 How to Install the Outdoor Unit First refer to Section 2 Installation Site Selection 4 1 Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality For field wiring re
73. ff e During the heating operation the fan speed will be very low and the flap will be in the horizontal position position until the air being blown out of the unit begins to warm Once the air warms up the flap position and fan speed change to the settings specified with the remote control e Use the FLAP button on the remote control to adjust the position of the flap If you move the flap by hand the flap position according to the remote control and the actual flap position may no longer match If this should happen shut off the unit wait for the flap to close and then turn on the unit again the flap position will now be normal again Do not have the flap pointed down during cooling operation Condensation may begin to form around the air vent and drip down Ol 801 21EG 21 INDOOR UNIT OPERATION TIMER EST QUIET OPERATION OPERATION button V Casing and Grille Indoor Unit Nan 22 Operation without the Remote Control Unit If you have lost the remote control unit or it has trouble follow the steps below When the air conditioner is not running Each time the OPERATION button is pressed the type of operation conducted is indicated by the changing color of the OPERATION lamp Press the button and select the lamp color that suits your preference for operation Cooling operation Heating operation Stop green red lamp off tT The temperature is set to the ro
74. h or box wrench remove the valve caps from the service valve on both nar row and wide tubes 3 Connect a vacuum pump and a manifold valve with pressure gauges to the service port on the wide tube service valve CAUTION CAUTION Fig 57 The service port on the wide tube service valve uses a Schrader core valve to access the refrigerant sys tem The valve core is similar to those used in automobile tires Therefore be sure to use a vacuum hose connector which has a push bin inside Be sure to use a manifold valve for air purging If it is not avail able use a stop valve field sup ply for this purpose The Hi knob of the manifold valve must always be kept closed 4 With the Lo knob of the manifold valve open run the vacuum pump The operation time for the vacu um pump varies with tubing length and the capacity of the pump The following table shows the amount of time for evacuation Table 7 Required time for evacuation when 100 liter h vacuum pump is used If tubing length is less than 33 ft 10 m If tubing length is more than 33 ft 10 m 10 min or more 15 min or more 19 Indoor unit 3 O Manifold valve Exclusively for R410A Pressure gauge Charging hose Exclusively for R410A Vacuum pump adapter Exclusively for R410A with reverse flow prevention Vacuum pump Fig 57 To
75. have been altered 3 Welding leaking points e Confirm again that no residual refrigerant exists in the unit before starting welding Weld securely using flux and wax for R410A Prevent oxide film from forming inside the tubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing e Use nitrogen gas for the pressurized gas and never use a refrigerant other than R410A Also do not use oxygen or any flammable gas b Evacuation e Use a solenoid valve installed vacuum pump so that even if power is cut off in the middle of evacuation of air due to a power interruption the valve will prevent the pump oil from flowing back e The equipment may be damaged if moisture remains in the tubing thus carry out the evacuation thoroughly e When using a vacuum pump with exhaust air volume more than 0 883 cu ft min and ultimate vacuum pressure rate of 50 micron Hg Standard time for evacuation 1 Detect leaks OK 2 Recover refrigerant OK 3 Weld leaking points OK 4 Check for sealing OK 5 Evacuation OK 6 Recharge Length of tubing Less than 33 ft 10 m More than 33 ft 10 m More than 10 minutes More than 15 minutes 6 Recharging e Recharge unit in the same manner explained on the previous page 5 Recharging 59 11 7 Charging Additional Refrigerant 11 7 1 When Tubes are Exten
76. he 1HR TIMER button e Release the ION button 2 Start Cooling mode test run by pressing the ON OFF operation button of the remote controller Fig 59a This starts the fan producing uncooled forced air with the 4 indicator lamps OPERATION lamp TIMER lamp QUIET lamp and ION lamp on the main unit blinking Fig 59c e After 3 minutes the system shifts into cooling opera tion and cool air will start to be felt Cool mode test run is unaffected by the room temperature 3 Press the ON OFF operation button of the remote con troller again to stop the test run Fig 59a 4 Finally press the ACL reset button of the remote con troller to release it from Test Run mode to return to nor mal mode Fig 59a e ss and oP 1 will disappear from the remote con troller display area Troubleshooting In the event that the green Operation Light is blinking upon powering up the system an error condition exists In this case refer to the self diagnostics procedure on the inside of the front cover Ay S IMPORTANT After the test run is completed be sure to press the ave eee putian to return to normal meee nu C air conditioner will not operate correctly if this is not FEY done 21 AIR CONDITIONER ON OFF ON v button a 1HR TIMER button QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER TIMER SENSOR C4 gt
77. he compressor stops and the indoor fan operates with 1 f fluctuation B PAM o control n order to further improve inverter performance control is switched between PWM control at low operation speeds and PAM control at high operation speeds making the most effective use of power This function acts to raise the power but keeps the AC system in the same operating mode This function is set with the HIGH POWER button on the remote controller It can be set regardless of the temperature and fan speed settings HIGH POWER operation from remote controller The unit operates at maximum output for 30 minutes regardless of the desired temperature The fan speed is 1 step above High Frequency 30 min 5 min V Start End NOTE When HIGH POWER operation ends the unit operates at low Hz for 5 minutes regardless of the thermostat OFF conditions When in DRY mode operation is in the cooling zone H Lamp colors OPERATION lamp HEAT operation Red DRY operation Orange COOL operation Green FAN operation Green DEFROSTING operation Red and Orange alternately TIMER lamp Green QUIET lamp Green ION lamp Green H Timer backup Operation stops if there are no operator controls for 25 hours or longer after unit operation switched from OFF to ON by use of ON timer operation NIGHT SETBACK When NIGHT SETBACK operation is set the temperature and fan speed settings will be adjusted automatically to al
78. he refriger ant gas to 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 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 conditioner is ready for actual operation 20 90 1 4 turn Narrow tube RE gt lt J Wide tube Hex wrench b Vacuum hose to manifold valve Fig 58 How to Test Run the Air Conditioner After turning on power to 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 59a a Press and hold the lON button b Then press and hold the 1HR TIMER button c At the same time press the ACL reset button once Use a pointed object such as the tip of a pen to press the ACL button e After a few seconds amp appears and oP 1 blinks in the remote controller display area Fig 59b d Release t
79. isturbance to its normal operation 2 Consult your dealer Operating Range The air conditioner is operable within the temperature ranges as listed below Lo quem Outdoor air temperature COOLING Max 95 F DB 71 F WB 115 F DB Min 67 F DB 57 F WB F DB HEATING Max 80 F DB 67 F WB 75 F DB 65 F WB Min DB WB Ol 801 25EG 25 APPENDIX B INSTALLATION INSTRUCTIONS KHS1872 CH1872 KHS2472 CH2472 11 852 6 4189 989 00 3 2 SANYO INSTALLATION INSTRUCTIONS Inverter Split System Air Conditioner COOL DRY HEAT Model This air conditioner uses the new refrigerant R410A Refrigerant service valve size 5 16 Contents Model Combinations Page IMPORTANT Combine indoor and outdoor units only as listed Please Read Before Starting 2 below 1 GENERAL 3 Indoor Unit Outdoor Unit 1 1 Tools Required for Installation not supplied pene One 1 2 Accessories Supplied with Unit KHS2472 CH2472 1 3 Optional Copper Tubing Kit Power Source 1 4 Type of Copper Tube and Insulation Material 60 Hz single phase 230 208 V 1 5 Additional Materials Required for Installation 2 INSTALLATION SITE SELECTION 4 2 1 Indoor Unit Be sure to read the yellow instruction sheet 2 2 Outdoor Unit 3 HOW TO INSTALL THE INDOOR UNIT 6 3 1 Remove the Rear Panel from the Unit 3 2 Make a Ho
80. it 2 Contact failure at connector or open circuit at terminal crimping location Outdoor heat exchanger sensor failure 3 Outdoor PCboard failure Outdoor air temperature sensor failure r electrical current detection Ondoa PCbaard fall re 1 Mis wiring 2 AC power failure 3 Blown fuse 4 Power Relay failure Indoor outdoor communications failure 5 Indoor or outdoor PCboard failure 6 Outdoor Fan Motor failure 7 Reactor failure serial communications 8 High Pressure Switch failure 9 Overload Relay failure 10 Magnetic Coil failure See detailed flowchart in this section 1 HIC or power Tr failure 2 Outdoor fan does not turn 3 Instantaneous power outage Service valve not opened 5 Outdoor fan blocked 6 Continuous overload operation 7 Compressor failure 8 Outdoor PCboard failure HIC circuit failure Power Tr transistor circuit failure a unit external ROM OTP data 1 External ROM data failure 2 Outdoor PCboard failure Peak current cut off 1 Instantaneous power outage 2 HIC or power transistor failure 3 Outdoor PCboard failure eae 1 Outdoor PCboard failure 2 Outdoor power supply voltage failure Compressor discharge overheat 1 Electric expansion valve failure 2 Capillaries choked 3 Shortage of refrigerant prevention activated 4 Continuous overload operation 5 Outdoor fan does not rotate 6 Outdoor PCboard failure Indoor fan operating failure 1 Fan motor failur
81. it once using the remote controller and then start the air conditioner again Trouble symptom 1 The fan does not stop when the unit stops Indoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the indoor unit controller 3 locations Measurement location 1 Vm Gnd Between pin 1 and pin 3 DC 230 V or more 2 Vcc Gnd Between pin 4 and pin 3 DC 14 V or more 3 Vs Gnd Between pin 5 and pin 3 Fluctuation between DC 1 7 to 6 1 V Diagnostic results All of the above measured values are normal Fan motor trouble Replace the motor Any one of the above measured values is not normal Indoor unit controller trouble Replace the controller Reference DC motor connector pin arrangement Pin 1 Vm red Pin 2 Not used Pin 3 Gnd black Pin 4 Vcc white Pin 5 Vs yellow Pin 6 PG blue Trouble symptom 3 Motor rotates for some time several seconds but then quickly stops when the indoor unit operates There is trouble in the system that provides feedback of motor rotation speed from the motor to the indoor unit controller Trouble symptom 4 Fan motor rotation speed does not change during indoor unit operation Trouble symptom 5 Fan motor rotation speed varies excessively during indoor unit operation Remedy for symptom 3 to 5 It is not po
82. l is used make sure to observe A Specification amount of extrusion by using the flare spacer Specification A Diameter of tube D Flare tool for R410A Conventional flare tool for R22 Dia 1 4 6 35 mm Dia 3 8 9 52 mm 0 to 0 0196 0 0472 Dia 1 2 12 7 mm 0 to 0 5 mm 1 2 mm Dia 5 8 15 88 mm Size of flare Flare tool for R410A Conventional flare tool R22 e Tubing precautions Refrigerant R410A is more easily affected by dust or moisture compared with R22 thus be sure to temporarily cover the ends of the tubing with caps or tape prior to installation Never use 0 0276 0 7 mm thick copper tubing or tubing which is less than 0 0315 0 8 mm in thickness since air conditioners with R410A are subject to higher pressure than those using R22 and R407C No addition of compressor oil for R410A No additional charge of compressor oil is permitted No use of refrigerant other than R410A Never use a refrigerant other than R410A e If refrigerant R410A is exposed to fire Through welding etc toxic gas may be released when R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R410A leak Check for possible leak points with the special leak detector for R410A If a leak occurs inside the room immediately provide thorough ventilation 55 11 3 Tools Specifically for R410A e For servicing use the follo
83. ld filter and How to replace the anti mold filter on page 23 When using a footstool or the like be careful not to let it tip over e Clean the grille gently using a soft sponge or the like Then wipe away any remaining moisture Neutral detergent may be used to remove stubborn dirt Then rinse thoroughly with water and wipe away any remaining moisture Follow the steps below when the generator has become dirty For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Remove the dust on the negative ion generator e Use a toothbrush etc to dust off the end e Use a cotton swab etc to clean around the generator inside the plastic case taking care not to touch the electrodes Negative ion generator metal electrodes inside plastic case e During use the negative ion generator and other metal parts may become discolored this is normal and not indicative of malfunctioning e fthe dirt on and around the negative ion generator is left to build up a puffing or sputtering sound will eventually be heard In this case clean the generator immediately Do not apply excessive force while performing maintenance Ol 801 24 EG Troubleshooting If your air conditioner does not work properly first check the following points before requesting service If it still does not work properly contact your dealer or service center Air conditioner does not run at all 1
84. le 3 3 Install the Rear Panel on the Wall 3 4 Remove the Grille to Install the Indoor Unit 7 3 5 Shape the Indoor Side Tubing 3 6 Wiring Instructions 3 7 Recommended Wire Length and Diameter attached to the outdoor unit for models using the new refrigerant R410A REMOTE CONTROL UNIT INSTALLATION POSITION a 23 7 1 Mounting on a Wall 3 8 Wiring Instructions for Inter unit Connections 8 ADDRESS SWITCH 24 3 9 Mounting 8 1 Address Setting of the Remote 3 10 Drain Hose Control Unit 4 HOW TO INSTALL THE OUTDOOR UNIT 16 4 1 Wiring Instructions for the Outdoor Unit 5 REFRIGERANT TUBING 17 5 1 Use of the Flaring Method 5 2 Flaring Procedure with a Flare Tool 5 3 Caution before Connecting Tubes Tightly 5 4 Connecting Tubing between Indoor and Outdoor Units 5 5 nsulation of Refrigerant Tubing 5 6 Taping the Tubes 5 Finishing the Installation The illustrations are based on the typical appearance of 6 AIR 19 a standard model Consequently the shape may differ Air Purging with a Vacuum Pump for Test Run from that of the air conditioner that you are installing Basic Functions of the Service Valves E Pump Down SANYO Commercial Solutions In Canada A Division of SANYO North America Corporation SANYO Canada Inc Cornerstone Business
85. low comfortable sleep When NIGHT SETBACK operation is set mark appears on the remote controller The main unit display lamp also becomes dimmer e COOL and DRY modes When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F 1 C when 30 minutes have passed after the selection was made and then another 2 F 1 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle cooling is needed 2 F 1 C Setting temperature 2F 1 C Lax Press the NIGHT 30 min 30 min time SETBACK button HEAT mode When the night setback mode is selected the air conditioner automatically lowers the temperature setting 4 F 2 C when 30 minutes have passed after the selection was made and then another 4 F 2 C after another 30 minutes have passed regardless of the indoor temperature when night setback was selected This enables you to save energy without sacrificing comfort This function is convenient when gentle heating is needed Setting 4 F 2 C temperature 4 F 2 C Press the NIGHT 30 min 30min time SETBACK button 8 2 Protective Functions During HEAT operation the temperature of the indoor heat exchanger is used to control the frequency and lessen the load on the compressor before the
86. lp 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 improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS WARNING When Wiring 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 overheating at connection points and a possible fire hazard When Transporting Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air conditioner can cut your fingers When Installing 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 In a Room Pro
87. lue Overload prevention operates to protect the air conditioner when outdoor ambient temperature becomes extremely high in heating mode Refer to 8 2 Overload prevention during heating 20 Indoor Unit KHS2472 Outdoor Unit CH2472 H Cooling Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 Low pressure performance chart UE tote it IHR NH H psig MPaG 12 5 68 77 86 20 15 10 65 0 5 10 18 20 25 30 35 40 Outdoor inlet air D B temp F C Low pressure at wide tube service valv 2 Operating current performance chart Operating current A 4 5 14 68 20 15 10 5 0 5 0 5 20 25 80 88 40 Outdoor inlet air D B temp F C 3 Indoor discharge air performance chart w TTE 60 8 16 2 14 a 53 6 12 50 0 10 aoe 46 4 8 eo ee Indoor discharge air temperature F C 42 8 6 FI 20 1 15 1 0 65 0 5 0 15 20 28 80 85 40 Outdoor inlet air D B temp F C NOTE Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value 21 Indoor Unit KHS2472 Outdoor Unit CH2472 H Heating Characteristics RH 46 Indoor fan speed High fan 60Hz 230V 1 High pressure performance chart psig
88. mote controller to operate the The rated voltage must be present between inter unit wirings 1 and 2 unit in TEST run mode To determine Connect a 5 k ohm resistor between inter unit wirings 2 and 3 When the whether the mode is currently in voltage at both ends is measured approximately 12 to 15V DC must TEST run mode check the 4 indicator be output and the multimeter pointer must bounce once every 8 lamps on the unit If all 4 are blinking seconds the current mode is TEST run Or instead of measuring the voltage you can insert an LED jig and check that the LED flickers once every 8 seconds f there are no problems with the above then check the outdoor unit For the Test run procedure refer to the Appendix B Installation Instructions 2 we the outdoor unit Check items unit operation 2 the rated voltage between outdoor The control panel LED red must illuminate unit terminals L and N Short circuit the outdoor unit COM terminal The compressor fan motor and 4 way valve must all turn on to the T RUN terminal e f there are no problems with the above then check the indoor unit Using the TEST T RUN terminals TEST T RUN terminals T RUN Test run compressor and fan motor turn ON TEST MV Compresses time to 1 60th accelerates operation by 60 times faster than normal 45 3 Serial Communication Error Identification Procedure If the lamps on the main body show the following
89. n etc 10 Compressor failure defective insulation etc 3 1 Condition E01 Troubleshooting Serial Communication Outdoor Unit Indoor Unit _ Fig 1 Fig 2 Is the voltage of about DC12V or more given between the terminals 2 and 3 on the outdoor unit terminal strip Serial Communication Line Fig 1 1 Turn OFF the power and wait until the power lamp LED No of the outdoor unit controller is turned OFF 2 Disconnect the cable from the terminal 3 on the indoor unit terminal strip Fig 2 3 Turn ON the power Yes A B Continued to the next page A Continued to the next page B 46 Continued from the previous page A Continued from the previous page B Is the voltage of about DC22V to 24V given between the terminals 2 and 3 on the indoor unit terminal strip Serial Communication Line Yes Defect or connection error Defect in the indoor unit in the inter unit cable P C board Turn OFF the power and wait until the power lamp LED Outdoor Unit of the outdoor unit controller is turned OFF Short circuit between the terminals 2 and 3 on the outdoor unit terminal strip Fig 3 Indoor Unit Turn ON the power and operate the system using the remote controller or the operation button on the indoor unit Fig 3 Perform the self diagnosis five seconds after the operation start Condition E12 Defect in the outdoor unit P
90. n procedure Press the ON OFF operation button to turn the unit off wait for the unit to stop operating and then press the ON OFF operation button again The 1 Hour Timer function is now cancelled and the unit operates normally e f while the 1 Hour Timer function is operating the 1HR TIMER button is pressed once to cancel the function and then again the unit continues to operate for one hour from that point in time and then stops e tis not possible to use the OFF Timer and 1 Hour OFF Timer together Whichever function is set last takes precedence If the 1 HR TIMER button is pressed while the TIMER OFF function operates the OFF Timer is cancelled and the unit will stop operating one hour later The 1 Hour OFF Timer setting is given priority over the DAILY ON OFF REPEAT setting Tips for Energy Saving e Block the air intake and outlet of the unit If they are obstructed the unit Will not work well and may be damaged e Let direct sunlight into the room Use sunshades blinds or curtains If the walls and ceiling of the room are warmed by the sun it will take longer to cool the room e Always try to keep the air filter clean Refer to Care and Cleaning A clogged filter will impair the performance of the unit To prevent conditioned air from escaping keep windows doors and any other openings closed Ol 801 20 EG Adjusting the Airflow Direction 1 Horizontal The horizontal airflow can be adjusted by moving the
91. n the operation button is pressed the compressor will start running within three minutes In the event of power failure the unit will stop 3 Adjusting the Fan Speed A Automatic fan speed Simply set the FAN SPEED selector button to the 5 position This automatically sets the best fan speed for the room temperature B Manual fan speed If you want to adjust fan speed manually during operation just set the FAN SPEED selector button as desired 9 8 or 4 Fan Only ON VOFFO STEP 2 QUIET MODE I STEP 1 FAN SPEED NIGHT SETBACK E FLAP HIGH POWER STEP 3 If you want to circulate air without any temperature control follow these steps STEP 1 Press the MODE selector button to switch to the fan mode 88 STEP 2 Press the ON OFF operation button STEP 3 Press the FAN SPEED selector button to select the fan speed of your choice 3 9 14 Ol 801 14 EG Operation with the Remote Control Unit continued 5 Night Setback Mode Night Setback Mode is used for saving energy Press the NIGHT SETBACK button while operation The mark appears in the display To release the night setback function press the NIGHT SETBACK button again EG QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER A In Cooling and DRY Mode and When the night setback mode is selected the air conditioner automatically raises the temperature setting 2 F when 30 minutes have passed after the selection w
92. nd high frequencies Therefore it is susceptible to the effects of external noise and is likely to cause electromagnetic interference with nearby wireless devices A noise filter is installed for ordinary use preventing these problems However depending on the installation conditions these effects may still occur Please pay attention to the points listed below 1 Noise malfunction This refers to the application of high frequency noise to the signal wires resulting in abnormal signal pulses and malfunction 1 Locations near broadcast stations where Either of the following trouble may occur The fundamental concept is to make the there are strong electromagnetic waves 1 The unit may stop suddenly during system less susceptible to noise 2 Locations near amateur radio short wave operation Insulate for noise or stations 2 Indicator lamps may flicker distance from the noise source 3 Locations near electronic sewing machines 1 Use shielded wires and arc welding machines 2 Move unit away from the noise source 2 Electromagnetic interference This refers to noise generated by high speed switching of the microcomputer and compressor This noise radiates through space and returns to the electric wiring affecting any wireless devices televisions radios etc located nearby 1 A television or radio is located near the 1 Noise appears in the television picture 1 Select a separate power source A C and A C wiring
93. nel Fig 6 2 Press the 2 A marks on the frame cover and disen gage the stationary tabs from the frame Fig 7 3 Remove the rear panel Tubing can be extended in 5 directions as shown in Fig 8 Select the direction you need providing the shortest run to the outside unit e When left tubing is to be done switch the drain hose and drain cap For details refer to Switching drain hose and drain cap on page 14 3 2 Make a Hole 1 Place the rear panel from the indoor unit on the wall at the location selected Make sure the panel is hori zontal using a carpenter s level or tape measure to measure down from the ceiling Wait until after cut ting the hole before attaching the rear panel to the wall 2 Determine which side of the unit you should make the hole for tubing and wiring Fig 9 In the case of left rear tubing use the measurement points 2 3 8 60 mm from the edge of the rear panel for precise placement of the hose outlet Fig 9 3 Before making the hole check carefully that no studs or pipes are directly run behind the spot to be cut CAUTION AISO aog areas where elec trical wiring or conduits are located The above precautions are also applicable if tubing goes through the wall in any other location Set screw only for transportation Fig 6 Rear panel A marks Fig 7 Right rear tubing Left recommended tubing f
94. ng 230V Single Phase 60Hz lt 230V gt Total Capacity BTU h 24 200 4 000 to 24 200 29 000 4 400 to 29 000 E Sensible Capacity Brun BOOT E LatentCapaciy BIUh 940 Q Air Circulation High ft min m3 h 600 1 020 653 1 110 Moisture Removal High Pintsh PB 2 Power Input W 2 355 280t02 355 2 490 290 2 490 Power Factor CN 1095 JHJ J 90 4 J EER BTUWW 100 S COP ww SEER BTUWh O o u HsPF _______ _______ ____ 85________ gt Compressor Locked Rotor Amperes 17 5 Fuse or Circuit Breaker Capacity Controls Temperature Control Microprocessor Thermister 1 Thermister Control Uni Timer Fan Speeds Indoor Outdoor Airflow Direction Indoor Horizontal Vertical R410A 7 4 30 1 950 Operation Sound Indoor Hi Me Lo Qt dB A 47 44 41 30 46 43 40 30 Qt Quiet mode Outdoor Hi dB A 55 56 Refrigerant Tubing Connections Refrigerant Narrow tube inch mm 1 4 6 35 Tube Diameter Wide tube inch mm o Unit Dimensions inch 111 23 32 x 41 15 16 x 8 19 32 29 1 8 x 35 7 16 x 12 19 32 g Height x Width x Depth mm 298 x 1 065 x 218 740 x 900 x 320 Package Dimensions inch 11 3 8 x 44 7 8 x 14 29 32 33 27 32 x 40 5 8 x 16 1 4 6 Height x Width x Depth mm 289 x 1 140 x 379 860 x 1 032 x 413 2 Weight Net Ibs kg E Shipping
95. ngle Phase 60Hz lt Cooling Capacity Low Ambient gt RATING CAPACITY 24 200 BTU h AIR FLOW RATE 600 CFM INDOOR OUTDOOR ENT TEMP F C AMBIENT TEMP F C W B 0 5 15 25 35 45 55 17 8 15 0 9 4 3 9 1 7 7 2 12 8 20 890 20 930 20 770 20 940 20 890 20 850 20 890 59 15 0 20 710 20 780 20 760 21 120 21 130 21 160 21 310 63 17 2 18 230 18 580 20 210 20 450 9 610 10 070 11 470 12 050 13 450 14 040 EE Bi 20 300 20 400 20 560 21 150 21 250 21 360 21 620 67 19 4 15 430 16 020 17 300 17 880 19 590 19 740 20 120 21 010 21 200 21 410 21 820 71 21 7 i 6 570 7 390 8 440 9 370 0 11 350 12 400 13 220 14 380 15 200 18 650 18 840 19 490 20 700 20 980 21 310 21 860 SHC 5 64 6 690 SHC 7 620 8 670 SHC 9 610 10 650 SHC 11 470 11 590 11 700 12 520 TC Total Cooling Capacity BTU h SHC Sensible Heat Capacity BTU h 10 54 NOTE 1 Above data does not take Freeze Prevention Protection during cooling operation into account For this reason the value may vary from the actual cooling characteristics 2 Above data represents the value when the operation frequency of a compressor is fixed 26 5 4 Heating Capacity Indoor Unit KHS1872 Outdoor Unit CH1872 Power Supply 230V Single Phase 60Hz lt Heating Capacity gt RATING CAPACITY 20 400 BTU h AIR FLOW RATE 541 CFM OUT
96. nter unit wiring Drain hose Fig 35 B Left side tubing 1 Lead the tubing and drain hose through the wall allowing sufficient length for connection Then bend the tubing using a tube bender to make the attach ment Fig 38 2 Switch the drain hose and drain cap Switching drain hose and drain cap a Locate the drain hose and the drain cap Fig 39 b Remove the screws fastening the drain hose on the right side and pull out the drain hose to remove it Fig 39 c Apply moderate force to pull off the drain cap on the left side If you cannot pull it off by hand use a long nose pliers d Reattach the drain hose to the left side and the drain cap to the right side Fig 40a Drain hose Slide the drain hose fully onto the drain pan outlet until the drain hose edge is pushed into the insula tion Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact then fasten them with the screw After attaching the drain hose check that it is attached securely Fig 40c Drain cap Use a Phillips screwdriver to push the drain cap in firmly If it is difficult to push in wet the cap with water first 3 Install the indoor unit on the rear panel 4 Connect the tubing and wiring led inside from out doors b After completing a leak test bundle the tubing together with armoring tape and store it inside the tubing storage area at the back o
97. ntion during heating During heating the fan speed is set to LL very low or stopped As the temperature of the indoor heat exchanger rises the fan speed is changed to the set speed Set fan speed At stability of operation At start of operation LL Stopped 77 86 Approx 104 25 30 40 Indoor heat exchanger temperature F C NOTE The fan speed is forcibly changed to LL beginning 30 seconds after the thermostat turns OFF At stability of operation refers to operation when the room temperature has approached the set temperature When HEAT operation starts the indoor fan is stopped until the temperature of the indoor heat exchanger reaches 68 F 20 C or higher or until the room temperature reaches 59 F 15 C or higher H Compressor discharge temperature control This function controls the operation frequency to prevent the compressor discharge temperature from rising more than a specified temperature Compressor discharge temperature F C Area Automatic capacity control When the temperature rises above Point A the operation frequency is reduced at a specified rate Area Further frequency increase is prohibited When the temperature falls below Point B prevention of a rise in frequency is released and the air conditioner operates as in a area The compressor will stop if the temperature of the compressor discharge exceeds 248 F 120 C due to shortage of gas or o
98. o check Cut each tube to the appropriate lengths 1 1 4 i 30 to 40 to dampen vibration between units Imitations Table 2 Narrow Tube Wide Tube Model Outer Dia Thickness Outer Dia Thickness KHS1872 1 4 6 35 mm 0 0314 0 8 mm 1 2 12 70 mm 0 0314 0 8 mm KHS2472 1 4 6 35 mm 0 0314 0 8 mm 5 8 15 88 mm 0 0393 1 0 mm 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 ae Drain hose Outside drainage 2 Installation Site Selection Indoor Unit Fig 1 AN To 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 direct sunlight Front View e nearby heat sources that may affect performance of the unit Fig 2 e areas where leakage of flammable gas may be expected places where large amounts of oil mist exist INDOOR Tubing length L UNIT ES DO e select an appropriate position from which every corner of the room can be uniformly cooled High on a wall is best pidas H OUTDOOR UNIT e select a location that will hold the weigh
99. om temperature minus 4 F during the cooling operation and to the room temperature plus 4 F during the heating operation and the fan speed and flap are set to Auto Care and Cleaning For safety be sure to turn the air conditioner off and also to disconnect the power before cleaning Do not pour water on the indoor unit to clean it This will damage the internal components and cause an electric shock hazard Clean the casing and grille of the indoor unit with a vacuum cleaner brush or wipe them with a clean soft cloth If these parts are stained use a clean cloth moistened with a mild liquid detergent When cleaning the grille be careful not to force the vanes out of place Never use solvents or harsh chemicals when cleaning the indoor unit Do not wipe the plastic casing using very hot water Some metal edges and the fins are sharp and may cause injury if handled improperly be especially careful when you clean these parts The internal coil and other components of the outdoor unit must be cleaned every year Consult your dealer or service center Ol 801 22 EG Care and Cleaning continued Anti Mold Filter The anti mold filter behind the air intake grille should be checked and cleaned at least once every two weeks How to remove the anti mold 1 Grasp both ends of the air Air intake grille filter intake grille and remove it by opening towards the front and pulling towards you 2 Remove the anti mol
100. on Heating operation Stop green red lamp off TH This lamp lights when the system is in the continuous AUTO red or green HEAT red DRY orange COOL green and FAN green mode The OPERATION lamp lights up red and orange alternately when the system is defrosting TIMER lamp This lamp lights when the system is being controlled by the timer QUIET lamp This lamp lights during operation in the QUIET mode This lamp lights during operation in the ION mode while the indoor unit is operating NOTE The unit s display lamps are dimmed during operation in the NIGHT SETBACK mode 6 Ol 801 6 EG Remote Control Unit Display AY 2 te M Displayed when transmitting data W UM Displayed when indoor unit sensor is in use Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Displayed when the time display is set to 12 hour time Symbols 1 Operation mode 4 Timer AUTO AY 24 hour clock with ON OFF aste NNNM MEER EN EE MEE MEN M BIEN UE VV program Timer HEAT ceccccececsecsecsessesecsecseseeereeees ON ON C MILD DRY A OFF Timer enne OFF MTM 1 hour OFF Timer 1 H C 2 Fan speed Automatic operation Flap angle indication Sweep indication 2 9 3 Temperature se
101. on Then press and hold the ACL reset button with a pointed object such as the tip of a pen After 5 seconds release ACL button first then release ION and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area 4 Each time the 1 HR TIMER button is pressed the display changes as shown below Press this button 2 times to change the display to oP 7 address setting Fig 15 J Test run mode ur af af E Self diagnostic mode 4 Address setting mode a 5 oP 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 15 Check that the beep signalreceived 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 15 Changing of the second remote controller address is now completed Fig 13 ACL button Fig 14 OOOO AIR CONDITIONER ION ON OFF button operation button 1 HR TIMER button QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER TIMER OFF D co c A A v v T gt C gt Ox CO E V ACL Reset button Fig 15 36 7 2 Disconnecting
102. on the indoor circuit board or a ROM socket insertion problem or the ROM has not been installed 2 The failure mode is stored in memory even when the power is not ON Follow the procedure below to perform diagnostics PROCEDURE After turning on power to the air conditioner use the remote controller and follow the steps below to execute self diagnostics Step 1 Press and hold the remote controller ION button and 1 HR TIMER button Then press and hold the ACL reset button with a pointed object such as the tip of a pen After 5 seconds release ACL button first then release ION and 1 HR TIMER buttons oP 1 test run appears blinking in the remote controller clock display area Step 2 Next press the 1 HR TIMER button once to change the display from oP 1 to oP 3 self diagnostics The display continues to blink Step 3 Finally press the ON OFF button to engage self diagnostics mode The self diagnostics function utilizes the 3 indicator lamps on the main unit in combinations of ON lamps blinking lamps and OFF lamps to report the existence of sensor trouble or a protective operation The lamps blink or remain ON for 5 seconds then turn OFF for 2 seconds Self diagnostics is completed when the buzzer sounds 3 short beeps A maximum of 3 self diagnostics reports are displayed for 5 seconds each beginning with the most recent report Following this display the lamps turn OFF In order to view the self diagnostic
103. ontroller clock display area 4 Each time the 1 HR TIMER button is pressed the display changes as shown below Press this button 2 times to change the display to oP 7 address setting Fig 64 Vw 0 mode X Q ur X NK E 3 Selfdiagnostic mode Q r a V j 1 Address setting mode 5 oP 7 has now been selected for address setting 6 Press the ON OFF operation button on the remote controller Fig 64 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 but ton to cancel the blinking oP 7 display Fig 64 Changing of the second remote controller address is now completed 24 ION button Fig 63 QUIET MODE FAN SPEED NIGHT SETBACK FLAP HIGH POWER CANCEL clock O SENSOR C4 gt F 12H4 gt 24H ADR Fig 64 ACL button ON OFF operation button ACL Reset button SANYO Commercial Solutions A Division of SANYO North America Corporation 1300 Michael Drive Suite A Wood Dale IL 60191 U S A Sanyo Canada Inc 1 300 Applewood Crescent Concord Ontario L4K 5C7 CANADA Jan 2009 T
104. onventional refrigerant R22 11 1 2 Components mixing proportions HFC32 50 HFC125 50 11 1 3 Characteristics Less toxic more chemically stable refrigerant e The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase Thus when there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in composition of the remaining refrigerant Therefore do not add new refrigerant Instead recover the remaining refrigerant with the refrigerant recovery unit Then after evacuation totally recharge the specified amount of refrigerant with the new refrigerant at its normal mixed composition state in liquid phase When refrigerant R410A is used the composition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state Thus always charge the refrigerant while it is in liquid phase Ether type oil is used for compressor oil for R410A type units which is different from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 54 11 2 Checklist before Servicing Use a clutch type flare tool for R410A or the conventional flare tool Note that sizes of the resultant flares differ between these two tools Where a conventional flare too
105. or the picture is distorted Keep the A C and A C wiring at least 1 meter 2 The antenna cable for a television or 2 Static occurs in the radio sound away from wireless devices and antenna cables radio is located close to the A C and A C wiring 3 Locations where television and radio signals are weak Change the wireless device s antenna to a high sensitivity antenna Change the antenna cable to a BS coaxial cable Use a noise filter for the wireless device Use a signal booster 51 10 CHECKING ELECTRICAL COMPONENTS 10 1 Measurement of Insulation Resistance e The insulation is in good condition if the resistance exceeds 1M ohm 10 1 1 Power Supply Cord Clamp the grounding wire of power cord with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the two power wires Fig 1 Then also measure the resistance between the grounding and other power terminals Fig 1 10 1 2 Indoor Unit Clamp an aluminum plate fin or copper tube with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Note that the ground line terminal should be skipped for the check 10 1 3 Outdoor Unit Clamp a metallic part of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where pow
106. ormal operation It does not turn off when the desired room temperature is reached If Night Set Back mode is selected the fan will turn off intermittently during cooling operation in order to control air flow Ol 801 9EG 9 Remote Control Unit continued SENSOR button When you press this button use a small tipped object such as a ballpoint pen the W mark will appear at the display And the room temperature is detected by the sensor which is built into the indoor unit and the air conditioner is controlled accordingly NOTE If the remote control is located near a heat source such as a space heater or in direct sunlight press the SENSOR button to switch to the sensor on the indoor unit Temperature Display Selector This switches the temperature display between C and F button Time Display Selector button This switches the time display between 24 hour time and 12 hour time ACL button ALL CLEAR Puts the remote control unit into pre operation status Always press this button after replacing the batteries ADDRESS switch The address switch changes to prevent mixing of signals from remote control units when two air conditioners are installed next to each other Normally the address switch is set to A For more information please contact the dealer where you made the purchase e Normally the tabs on the remote control unit should not be bent NOTE The remote control unit sends the temperature signal to
107. perly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors 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 and 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 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 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 Others CAUTION 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
108. prevent other refrigerants from being mistakenly charged to units which use R410A the size of the charge port on the service valve is different from the one for other refrigerant types For servicing such as recharging the specified charging hose manifold and vacuum pump adapter with reverse flow prevention for R410A must be used The required time in Table 7 is calculated based on the assumption that the ideal or target vacuum condition is around 10 mmHg abs 5 With the vacuum pump still running close the Lo knob of the manifold valve Then stop the vacuum pump 6 With the accessory 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 58 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 out doors with soapy water Bubbles indicate a leak Tight en 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 t
109. quirements please refer to your local elec trical codes Make sure that the installation fully complies with all local and national regulations 1 Remove access panel C Fig 46 2 Connect the inter unit and power supply line accord ing to the drawing on the panel side 3 Be sure to size each wire allowing approx 4 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 sys tem diagram on panel side 5 Be sure to ground the unit according to your local codes Lock nut Cabinet Terminal block Conduit plate Access panel C Power supply Conduit Plug Inter unit Conduit Fig 46 16 5 Refrigerant Tubing Deburring 5 1 Use of the Flaring Method BEIC After Many of the conventional split system air conditioners F employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this ij method the copper tubes are flared at each end and connected with flare nuts 7 NN NN KSI 5 2 Flaring Procedure with a Flare Tool 1 Cut the copper tube to the required length with a Fig 47 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
110. r turning the air conditioner on and off 1 HR TIMER button When you press this button regardless of whether the unit is operating or 1 HOUR OFF TIMER stopping the unit operates for one hour and then shuts down 8 Ol 801 8 EG Remote Control Unit continued Temperature setting buttons Press the button to increase the set temperature TEMP Press the v button to reduce the set temperature The temperature setting changes by 1 C or 2 F each time one of the TEMP buttons is pressed QUIET button Wal When you press this button the fan rotates slower than the fan speed setting to provide a quieter operating sound EG MODE selector button Use this button to select AUTO HEAT DRY COOL or FAN mode AUTO When this setting is selected the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the COOL or HEAT mode as appropriate HEAT The air conditioner makes the room warmer DRY The air conditioner reduces the humidity in the room COOL The air conditioner makes the room cooler The air conditioner works only as a circulation fan FAN SPEED selector button The air conditioner automatically decides the fan speeds High fan speed Medium fan speed Low fan speed NIGHT SETBACK button For details see 5 Night Setback Mode When you press this button in the HEAT DRY or COO
111. re The fan speed is 1 step above High Quiet Operation The fan rotates slower than the fan speed setting to provide a quieter operating sound ION Operation While it is operating the unit generates negative ions that freshen up the air in the room Anti Mold Filter This unit is equipped with an anti mold filter that inhibits the growth of mold and bacteria Air Clean Filter An air filter that eliminates unpleasant odors and cleans the air is available Purchase a replacement filter at your local dealer model STK FDXB Ol 801 2 EG Ol 801 3EG Contents Page BS MNS oroe ada aan naal s a 2 Prod ct InformatON a aa iae eq 3 BS Fea erui Le p PN ET 4 Electrical Requirements aaaaaaaaaaaaiaaanaanaanaannannannnannannnnnannnannnnnnanannannnannannnnnann 4 salely e 4 INAS SOP capes A 5 Using the Remote Control Unit nennen 10 Operation with the Remote Control Unit lees 12 1 Automatic Operation 12 2 Manual densi a 13 Adjusting the Fan 14 nM AV et 14 5 Night Setback MOO 6 EE 15 METT ME NER a a aS G a a I 16 HIGA POW
112. s results again press the ON OFF button again The 3 lamps remain OFF if no trouble has occurred IMPORTANT After self diagnostics is completed be sure to press the ACL reset button to return to normal mode The air conditioner will not operate if this is not done 42 ION button lt Clock display gt Testrun mode D Q al Self diagnostics mode X w OOOO AIR CONDITIONER ___ ON OFF operation button TIMER button QUIET MODE FAN SPEED NIGHT SETBACK C oC D FLAP HIGH POWER TIMER ACL Reset button 1 Self diagnostics Lamps 1 OPERATION lamp irr 2 TIMER lamp irr 3 QUIET lamp ION lamp INDOOR UNIT rr OPERATION button REMOTE CONTROL receiver e Since the indications cover various units the corresponding parts listed below may be present in some models Indication on indoor unit X OFF 3 Blinking 3 ON Illuminated ES HE EIE Room temperature sensor failure 1 Sensor open circuit or short circuit 2 Contact failure at connector or open circuit at terminal crimping location Indoor heat exchanger sensor failure short circuit detection only for the humidity sensor 3 Indoor outdoor PCboard failure Humidity sensor failure Compressor temperature sensor failure 1 Sensor open circuit or short circu
113. ssible to identify whether the trouble is indoor unit controller trouble or motor trouble Therefore first replace the indoor unit controller then if necessary replace the DC motor 49 9 4 2 Outdoor Fan Motor e This outdoor DC fan motor contains an internal control PCB Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor Perform the trouble diagnosis by Test Run mode described on Installation Instructions Important A Turn OFF the power before connecting or disconnecting the motor connectors B When performing voltage measurement at the outdoor controller connector for 3 in the table below the DC motor will trip and voltage output will stop approximately 10 seconds after operation is started For this reason to measure the voltage again first turn OFF the outdoor unit power then measure the voltage in Test Run mode Trouble symptom 1 The fan does not stop when the outdoor unit stops Outdoor unit controller trouble Trouble symptom 2 The fan motor does not rotate when the outdoor unit is operating Diagnostic procedure Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor unit controller 3 locations Measurement location Normal value 1 Vs Gnd Between pin 1 and pin 4 Or DC 230V or more Vm Gnd Between pin 1 and pin 4 2 Vcc Gnd Between pin 5 and pin 4 DC 14V or more 3 Vsp Gnd
114. t of the unit e select a location where tubing and drain hose have the Fia 3a shortest run to the outside Fig 1 9 allow room for operation maintenance as well as CAUTION CAUTION stricted air flow around the unit Fig 2 CAUTION Indoor unit e install the unit within the maximum elevation difference H Wall For stable operation of the 7 above or below the outdoor unit and within a total tubing length air conditioner do not install wall mounted type Minimum height e Install the indoor unit more than 3 3 1 m away from any indoor units less than 5 from floor level antenna or power lines or connecting wires used for television 1 5 m from floor level 1 5 m radio telephone security system or intercom Electrical noise from any of these sources may affect operation L from the outdoor unit as detailed in Table 3 and Fig 3a LO Pur PA Floor level Fig 3b Table 3 Max Allowable Tubing Limit of Tubing Limit of Elevation Required Amount of Model Length at Shipment Length L Difference H Additional Refrigerant ft ft ft oz ft If total tubing length becomes 25 to 98 ft Max or 33 to 98 ft Max charge additional refrigerant R410A by 0 27 oz ft No additional charge of compressor oil is necessary For more detailed charging information refer to the Technical amp Service Manual 4 2 2 Outdoor Unit AV
115. ther reason H Defrost detection and release E CT Peak current cut off control e Reverse Cycle Defrosting e This function prevents the circuit breaker or fuse from operating to open the circuit This function works when electrical current has increased due to an increase in the cooling heating load or to a decrease in the power supply voltage In these cases operation frequency is reduced or operation is interrupted auto matically to control the electrical current for operation When the cause of the increase in electrical current is rectified the system will resume operation in the original mode In ration MIR MUN lt KHS1872 gt A e 4 way valve ON Peak current cut off trips 2 down 14 0 15 0 Frost sensing lt KHS2472 gt Defrost detection occurs in either of the following cases TT Cooling Dry The temperature of the heat exchanger remains at Peak current cut off trips or below the L1 line for 3 minutes after the start of Hz down 14 0 17 5 HEAT operation The temperature of the heat exchanger remains at a or di L2 line for 120 ee the start Electrical current setting for COOL operation is of HEAT operation used during DEFROST operation Outdoor heat exchanger temp gt Ambient temp Frosting area Heverse cycle defrosting operation e Compressor 1 minute after it is stopped compressor is ON Outdoor fan gt OFF e Indoor fan OFF e 4 way valve O
116. tion with the Remote Control Unit continued 2 Manual Operation QUIET MODE CJ CC STEP 1 FLAP HIGH POWER NOTE Check that the circuit breaker on the power panel is turned on If the automatic operation settings of the unit do not meet your needs press the setting buttons as described below and change the settings as desired Press the MODE selector button and select the desired mode For heating operation For dehumidifying operation For cooling operation For fan only operation STEP 2 To start the air conditioner press the ON OFF operation button STEP 3 Press the TEMP setting buttons to change the temperature setting to the desired temperature Adjustable temperature range 30 C max or 86 F max 16 C min 60 F min STEP 4 Set the FAN SPEED selector button to the setting you want STEP 5 Press the FLAP button and set the airflow direction as desired Refer to Adjusting the Airflow Direction on page 21 To stop the air conditioner press the ON OFF operation button again Ol 801 13EG 13 Operation with the Remote Control Unit continued NOTE e Choose the best position in the room for the remote control unit which also acts as the sensor for room comfort and transmits the operating instructions Once you ve found this best position always keep the remote control unit there e This appliance has a built in 5 minute time delay circuit to ensure reliable operation Whe
117. tting SET TEMP 8 High power operation 60 86 F rt rt When set to 80 F F 9 Quiet operation temperature indication J D 10 ION operation O1 801 7EG 7 Remote Control Unit Transmitter Sensor Display Cover closed ON OFF operation button 1 HR TIMER button Temperature setting buttons TEMP ION button MODE selector button NIGHT SETBACK button HIGH POWER button QUIET button FAN SPEED selector button FLAP button ON TIME Advance button setting buttons OFF TIME Advance button setting Return button Return button buttons CANCEL button SENSOR button CLOCK button Time display selector button ADDRESS switch ACL button Temperature display selector button NOTE The illustration above pictures the remote control unit after the cover has been opened Transmitter When you press the buttons on the remote control unit the mark appears in the display to transmit the setting changes to the receiver in the air conditioner A temperature sensor inside the remote control unit senses the room temperature Display Information on the operating conditions is displayed while the remote control unit is switched on If the unit is turned off FLAP setting and FAN SPEED setting are not displayed This button is for turning the negative ions generated during operation on and off ON OFF operation button This button is fo
118. tube reamer or file This process is important and V should be done carefully to make a good flare Fig 47 NOTE When reaming hold the tube end downward and be Fig 48 sure that no copper scraps fall into the tube Fig 48 If the special R410A If the previous flare tool 3 Remove the flare nut from the unit and be sure to flare tool is used clutch type is used mount it on the copper tube 4 Make a flare at the end of copper tube with a flare 0 to 0 0196 D 0 0472 1 2 mm 0to 0 5 tool Figs 49a and 49b Adjust so that the amount of tube protrusion is as shown in the figure Fig 49a good flare should have the following characteristics ge Flare nut Copper 3 tubing Use RIGID or equivalent inside surface is glossy and smooth edge is smooth tapered sides are of uniform length 5 3 Caution before Connecting Tubes Tightly a sure apply a sealing cap or water proof tape Fig 49b to prevent dust or water from getting into the tubes before they are used MwA b sure 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 50 Apply refrigerant lubricant here and here Fig 50 c For proper connection align the union tube and flare tube straight with each other then screw in the P flare nut lightly at first to obtain a smooth mat
119. uired for Installation not supplied 12 Tube flaring tool 1 Standard screwdriver 13 Torque wrench 2 Phillips head screwariver 14 Adjustable wrench 3 Knife or wire stripper 15 Reamer for deburring 4 Tape measure 5 Carpenters level 1 2 Accessories Supplied with Unit Table 1 Truss head Remote Tapping screw Phillips n Hex wrench VA 1 9 32 x 5 8 4x16 mm X Remote control v rri AAA alkaline Drain hose T 0 Packed in the outdoor unit battery adapter 4 lt gt 1 3 Optional Copper Tubing Kit 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 IN Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the narrow and wide tubing fittings and insulation Consult your nearest sales outlet or A C workshop 3 Use insulated copper wire for field wiring Wire size varies with the total length of wiring Refer to 3 6 1 4 Type of Copper Tube and Insulation Material di Wiring Instructions for details If you wish to purchase these materials separately from a local source you will need CAUTION Check local electrical codes 1 Deoxidized annealed copper tube for refrigerant tub and regulations before ing as detailed in Table 2 obtaining wire Als
120. undle 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 Fig 56 18 Torque wrench Spanner Indoor unit Outdoor unit Fig 52 Insulation Fig 53 Insulation A Thickness Min min 5 16 5 16 8 mm 8 mm Fig 54 Insulated tubes Fig 55 Apply putty here 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 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 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 properly 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 2 Using an adjustable wrenc
121. 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 Table of Contents Page OPERATING RANGE 5 SPECIFICATIONS ARR 6 2 2 Major Component Specifications aaaaaaaaaaaaaaa asa aan nana nanaanannanannanannanannnnannnnannnnnnnnanananaaa 10 2 3 Other Component Specifications auaaiaaaaaaaaaaaaaaaaaaaaaaaaanaaaanaaaanaananaananaaannaaannanannaaanaaaaanuaa 14 v DIMENSIONAL DATA ae ee ee ee eee ee eee eee 15 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram aaauaaaaaaaaaaaaaaaaananaanaaaunanaanunnnaanuannannananannananannaananannanannnnanaanaa 18 PERFORMANCE DATA eE Temperdaiuire C gris a 19 28 11 CANA 23 5 3 Cooling Capacity Low Ambient aaaaaaaaaaa aaaaaa asa aanaananaanannanannanaanannnnanannnnnnnnnnnnnnnnananannnaaa 25 TCA CAD ACI 27 5 5 Air Throw Distance Charts 29 ELECTRICAL DATA 6 1 Electrical Characters lOS 31 0 2 WINING Dallas a a 33 MAINTENANCE 7 1 Address Setting of the Remote Control Unit 36 7 2 Disconnecting and Connecting Positive Connector for Outdoor Unit
122. vertical vanes with your hands to the left or right When the humidity is high the vertical vanes should be in the front position during the cooling or dehumidifying operation lf the vertical vanes are positioned all of the way to the right or left condensation may begin to form around the air vent and drip down 2 Vertical The vertical airflow can be adjusted by moving the flap with the remote control unit Do not move the flap with your hands Confirm that the remote control unit has been turned on Use the FLAP button to set either the sweep function or one of the six airflow direction settings QUIET MODE CD CD FAN SPEED NIGHT SETBACK COOL DRY FLAP HIGH POWER FAN A Sweep function B Setting the airflow manuall e R The flap starts moving up and down to g y 7 g Referring to the above illustration use the button to set the airflow direction within the range used during the heating cooling or dehumidifying operation deliver air over the sweep range C Auto flap function The flap is set to the recommended A position The flap automatically closes when the unit is o
123. wing tools for R410A Gauge manifold Charging hose Gas leak detector Refrigerant cylinder Charging cylinder Refrigerant recovery unit Tools specifically for R410A Vacuum pump with anti reverse flow 1 Solenoid valve installed type which prevents oil from flowing back into the unit when the power is off is recommended e Vacuum pump 2 be used if the following adapter is attached e Vacuum pump adapter reverse flow prevention adapter 3 Solenoid valve installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Tools which can be com Torque wrench monly used for R22 R407C and R410A Cutter reamer Welding tool nitrogen gas cylinder J N e The above tools specifically for R410A must not be used for R22 and R407C Doing so will cause malfunction of the unit e For the above vacuum pump 1 2 and vacuum pump adapter 3 those for R22 type units can be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C e To prevent other refrigerants R22 R407C from being mistakenly charged to this unit shape and external diameter of the service port screw has been altered lt External diameter of service port gt R410A 5 16 R22 R407C 1 4 11 4 Tubing installation Procedures When the tubes are connected always apply HAB oil on the flare portions to improve the sealing of tubing Th
124. xample To stop the air conditioner at 11 00 am 1 Press the OFF TIME setting The timer indication is displayed button once and the present OFF time is shown Press the Advance Return 4 The timer indication blinks v button until AM 11 00 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then the The timer indication stops setting is complete blinking and the present time is displayed 18 OI 801 18 EG 3 How to set the ON time ar 4 How to set DAILY ON OFF REPEAT timer To cancel a timer program Ol 801 19EG Setting the Timer continued Example To start operation at 7 10 am ae ae 1 Press the ON TIME setting The timer indication is button once displayed and the present ON time is shown Press the Advance Return The timer indication blinks v button until AM 7 10 is The time can be set in 10 minute displayed increments Holding down the button advances the time rapidly in 10 minute increments Wait a few seconds and then The timer indication stops the setting is complete blinking and the present time is displayed Example To start operation at 7 10 am and stop the air conditioner at 11 00 am 10 30 pm 7 10 am 11 00 am Present time ON OFF 1 Set the timer ON OFF times as The present time 10 30 pm and shown in 2 1 2 3 and 3 1 2 3 ov

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