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TECHNICAL & SERVICE MANUAL DC INVERTER

1. r 7 7 454 1 4 111 11 7 ee E EE EE ee ere ee wy 5 eee emm mm lt lt lt lt lt 4 R M i 4 4 4 4 4 50 oe T ee eS oe ee l L T DL 0 6 cycle SA Fig 2 21 7 2 Protective Functions 7 2 1 Defrost Detection and Release 1 Non stop defrosting Defrosting sequence 4 way valve ON Defrost detection occurs in either of the following cases he temperature of the heat exchanger remains at or below the L1 line for 35 minutes after the start of HEAT operation he temperature of the heat exchanger remains at or below the L2 line for 120 minutes after the start of HEAT operation Accumulated 2 hours have passed with the coil temperature of 2 or less Heating operation Outdoor heat exchanger temperature Frost detection Outdoor air C 9 temperature 7 Compressor 70 Hz operation 4 way valve Outdoor fan OFF Solenoid valve ON for hot gas bypass Ind
2. 7102 Q o Q o c o I IJ m mo mm 9 zu EO a ru lt lt UNO co rr AA AA ejh MIV LN 13 YHOLSINYAHL 9 HOLSIINH3H L M 8 YHOLSINYAHL HOLSIINH3H L LHM LHM nd OW OW OW DD cc cc 22 3ATVA LSOHH3G Alddns N dc 1VNIINH3 L 3402 314494 A0SZTIVSCL NOSZ VSZ L04 o m z zz E z E 2 4 4 0 lt lt lt lt 20 lt lt lt lt 240 lt lt lt lt 20 lt 0 mmrmrm c ommrmrm 2 rr rT m D r m m r r mm r m m Viele HVE El ie e pue Bunoedsur 9ILS3NOVIN 1S3UN H L V AW INN 55 Zen ZINO LONO ZON S0N9 E mg GEN HN LHM 838 mak 7 HOLOW o 5 Duo 102 2IL3NSVIN AV 13H S 4AH9 Y 18 E 13A 2 L 2 LHM L LHM L 18 HOLINOW
3. qd c 5 E E TEL 5 10 15 20 Outdoor air temperature C Outdoor air temperature C 3 Indoor discharge air performance chart 3 Indoor discharge air performance chart 55 j aN M 22 AB w T Indoor discharge air temperature C Indoor discharge air temperature C N Outdoor air temperature Outdoor air temperature C This performance chart shows operation of a single wall mounted indoor unit The performance chart will vary depending the indoor unit type Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value In this case be sure to stop all the indoor units where performance is not being checked The performance is for a tubing length of 7 5 m If the tubing length is different the performance chart will vary 13 Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KMRV126EH x 1 or SAP KRV126EHDS x 1 Cooling Characteristics Heating Characteristics RH 46 Indoor fan speed High fan RH 85 Indoor fan speed High fan 230V 50Hz 230V 50Hz 1 Low pressure performance chart 1 High pressure performance chart 29 IK fo 29 gt 5 12 L 9 5 12 2 2D E x
4. If total tubing length becomes 45 to 80 m max charge additional refrigerant R410A by 20 g m No additional charge of compressor oil is necessary 2 2 Connecting Indoor Units Figures A H show the different types of indoor unit connections including the use of a reducer To select the required indoor unit to be connected refer to the Combination Table that was included in the outdoor unit package Flare 012 70 Union 09 012 70 Union 09 52 012 70 09 52 Supplied reducer ka unit Indoor unit 09 52 yp KMRV94EH KMRV124EH GAPKMRVIEEH KMRV96EH KMRV126EH 012 1 SAP KRV96EHDS KRV126EHDS gas SAP KMRV74EH KMRV94EH KMRV124EH E SAP KMRV76EH KMRV96EH KMRV126EH 012 2 lt SAP KRV96EHDS KRV126EHDS 2 SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH 09 55 SAP KRV96EHDS KRV126EHDS E Dome SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH 9 52 s SAP KRV96EHDS KRV126EHDS x P SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH 09 55 SAP KRV96EHDS KRV126EHDS B Outdoor unit Flare 012 70 Union 09 52 06 35 9 52 012 x 06 35 9 52 C 09 52 06 35 09 52 09 52 6 35 5 9 52 09 52 06 35 012 70 m Fig 4a 012 70 09 52 Supplied reducer
5. LSOY43Aa YOLOW panan HOOQNI OL A FA s v e e t m dv yg 2400 11094 10020 0NO LHM ONILO3NNOO Q ON HOOQNI 1 4 4 iagrams AOSZ1V SZL AOSZ VSC 3409 E 31V1d TVNIAH3 L M TE AYVO4 O d 43 114 ASION 9 AYD 3409 x D ZHOS iring W 9 TVNIINH3 L Outdoor Unit SAP CMRV3656EH 6 1 Electric 8FA2 5250 52600 3 17 7 FUNCTIONS 7 1 Explanation of Functions Control conditions Unit operation Explanation Power is supplied to the indoor and outdoor unit control circuits however the unit remains stopped B The ON OFF operation button on the remote controller is pressed The ON OFF operation button on the remote controller is pressed The room temperature has reached the desired temperature The thermostat turns OFF The indoor and outdoor temperatures are high The thermostat turns ON If automatic operation mode has been selected with the remote controller operation begins in HEAT SENSOR DRY or COOL mode depending on the room temperature and outdoor temperature at the time operation starts V Positioning of the outdoor unit electric expansion valve is performed e This applies in the case of automatic HEAT COOL operation Depending on the operational mode refer to the HE
6. quvoa 0d BB 18 919 18 a g 18 o 6 AO0v VSL E O Hor L 18 2 18 18 2 18 E HOLSIINH3H L 2 o 3univH3adiNal H31V3H 232 3SVOXINVHO gt w HOLOV3H r r r r I I M zi o LNOOG 3lldu3d 00 2 431114 3SION AHO TAA NHH HA9S9EAHIND dVS UW11031039 101J91X9 pepiun 53 reueddy HUN 100pinO 21 JJA annve m SS SSI3M OL 1HM 01 31IHM 01 6 LA VL31OIA 6 1310IA 6 8 3onou 8 8 3sou VSOH L L 3ONVHO 9 3ONVHO 9 3ONVHO 9 G SIH5 AYO S AWD S gT35 NQH5 JANNHD v 3NRVf 1H3A T3A NHO OTIIHVIAV 3QH3A TJA NHYD v MOTISA N33HD TJA NH v NOHHVIN NOHHVIN NMOHS ma 112 2 2 ZuvMHOS 1 HION OY IN oNninaqag
7. 2 NOLLVOIJINDIS OQVOIINDIS Aq3oUrliAno am UoUAU3314 D IAUVV3 seJnjei eJqe sep OdLIsV OONVH8 Ol OONVIA 01 LIA VLAIOIA 6 VIOIA 6 ONIMMOM qaq OQVNHVON 8 05504 8 ZOd VSOH 4q3q0 HOO L L IVVMO LdOLI 540 VEFNVYV1 S0 YOO 9 JNOIONVHV 9 OZIdM OLN3ZNIO J3A NHO O T3HVNWV 3QH3A r OTIVIO 3qH43A r lt H NH8 OHNVLSVO Nad me OdAVW M18 OLagHd OHUN HXH IHz3LI3 lt OQVOIJINDIS AqaHav OLVOISINDIS lUOIZBIA IqqE ejep 22 10 seJnjei eJqe Se ep sep uebunzinyqy Duninepeg APPENDIX UNIT COMBINATION TABLES List of Combination Table gt Name of Combination Table Model No of Outdoor Unit 5 Room Outdoor Unit Combination Table SAP CMRV3656EH Ol 852 6 4181 116 00 1 NOTE Be sure to operate the air conditioning system only when 2 or more indoor units have been installed If operated with only a single unit installed the returning fluid to the compressor may cause a malfu
8. 2 vibration and noise LA Min 15 cm Air intake ACE install in a location where no antenna of a television i AAE T or radio exists within 3 meters ones J or equal ER 5 cm Fig 5c gt gt D 222222222212 Zk COAT L R gt gt TT H kc A FH TT HH 2 SS gt 2222222122 E N lt Fig 5d 2 4 Outer Dimensions of Outdoor Unit Service valve on wide tube side Outer diameter 212 70 Service valve on narrow tube side 910 Outer diameter 06 35 Service valve on wide tube side Outer diameter 29 52 2 5 Diagram of Outdoor Unit Installation Never install only a single indoor unit Ensure 15cm of space if a drain hose is to be used Be sure to connect indoor and outdoor units only in combinations that are listed in the catalog or in the combination table that was provided with the outdoor unit Use caution Connecting any other model may result in operation failure and malfunction The dimensions indicated by lt gt in the figure below sp
9. wW Indoor discharge air temperature Indoor discharge air temperature C N j _ A N j _ NN A l Lo WA N Outdoor air temperature Outdoor air temperature C This performance chart shows operation of a single wall mounted indoor unit The performance chart will vary depending the indoor unit type Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value In this case be sure to stop all the indoor units where performance is not being checked The performance is for a tubing length of 7 5 m If the tubing length is different the performance chart will vary 12 Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KMRV96EH X 1 SAP KRV96EHDSA 1 Cooling Characteristics Heating Characteristics RH 46 Indoor fan speed High fan RH 85 Indoor fan speed High fan 230V 50Hz 230V 50Hz 1 Low pressure performance chart 1 High pressure performance chart emos MPaG kgf cm G MPaG kgf cm G 0 doo air te ERE 30 35 4 Outdoor air temperature Outdoor air temperature C as BE Low pressure at wide tube service valve High pressure at wide tube service valve 2 Operating current performance chart 2 Operating current performance chart
10. TECHNICAL amp SERVICE MANUAL OUTDOOR UNIT SAP CMRV3656EH Destination Europe DC INVERTER MULTI SYSTEM AIR CONDITIONER Capacity Outdoor Model No Product Code No 10 0kW SAP CMRV3656EH F 1 852 355 48 SAP CMRV3656EH lt Applicable Indoor Units gt Wall mounted type SAP KMRV76EH SAP KRV96EHDSA SAP KMRV96EH SAP KRV126EHDS SAP KMRV126EH SAP KRV186EH SAP KRV246EH NOTE For details about the combination refer to Unit Combination Table in the Appendix of this manual RoHS This product does not contain any hazardous substances prohibited by the ROHS Directive A WARNING You are requested to use ROHS compliant parts for maintenance or repair You are requested to use lead free solder F GAS REGULATION EC No 842 2006 RAT Do not vent R410A into atmosphere R410A is a fluorinated greenhouse gas covered by Kyoto Protocol with a Global Warming Potential GWP 1975 REFERENCE 700847 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 e Carefully read this instruction booklet before beginning e Follow each installation or repair step exactly as shown e Observe all local state
11. 8 Hz and the start current is less than the normal operating current This prevents the flickering of fluorescent lights or television screens that occurs when ordinary A C units start 7 2 4 Compressor Temperature Control To protect the compressor coil from overheating the operating frequency is controlled based on the compressor discharge temperature 110 5Hz every 30 sec reduction 106 2Hz every 30 sec reduction 100 Increase rohibit range No control 9 Hz reduction Compressor discharge temperature Within the increase prohibit range the range changes to the Hz reduction range 2 Hz every 30 seconds if the compressor temperature rises by 2 C 7 2 5 Control at HEAT Start up If HEAT operation is started when the outdoor air temperature is 15 C or below the unit operates at the HEAT start up frequency 70 Hz Reset conditions 1 The compressor frequency exceeds the start up frequency of 70 Hz 2 The compressor thermostat is OFF 1 2 3 Frequency reduction for indoor high load control has occurred 4 The outdoor air temperature is above 15 C 5 5 The main unit switch on one or more indoor units is to TEST run 24 7 3 Special Functions 7 3 1 Noise Reducing Control Outdoor Unit The noise reducing control is the function used for silent operation of the air conditioner by means of setting the dip switch on the outdoor unit P C Board to control th
12. Features Outdoor Unit Fan Speeds Auto Hi Variable Refrigerant Narrow tube mm in 6 35 1 4 x 5 Tube Diameter Wide tube mm 9 52 3 8 x 3 12 7 1 2 x 2 Dimensions amp Weight Outdoor Unit 7 Height x Width x Depth mm 910 x 940 x 340 Height x Width x Depth mm 1 031 1 086 x 448 Weight Net kg Shipping kg Shipping Volume m DATA SUBJECT TO CHANGE WITHOUT NOTICE Remarks 1 The values shown in perfromance section and electrical rating section above are based on the following unit combination For other combination unit please refer to the Unit Combination Table in this manual Indoor Unit SAP KMRV76EH 5units Outdoor Unit SAP CMRV3656EH 1unit 2 Rating conditions are Cooling Indoor air temp 27 19 W B Heating Indoor air temp 20 Outdoor air temp 35 C 24 C W B Outdoor air temp 7 C D B 6 C W B 2 2 Major Component Specifications 2 2 1 Outdoor Unit Outdoor Unit SAP CMRV3656EH Controls Microprocessor Circuit Fuse 7 400V315A 250V25A j __ Compressor DC Twin Rotary Hermetic Compressor Model Nominal Output C 9RVN273H0H 2 700W Compressor Oil Amount CC 685 1 400 Coil Resistance Ambient Temp 25 C Safety Device CT Peak current cut off control es Compressor Discharge Temp Control Yes Operation cut off control in abnormal ambient Temp es Overload Relay Model CS
13. Fig 4h unit mm 2 3 Outdoor Unit AVOID e heat sources exhaust fans etc Fig 5a NO 2 Exhaust fan Hot air 2 Heat source e damp humid or uneven locations DO Outdoor unit e position the outdoor unit in a protected location where snow will not blow into it e choose a place as cool as possible Fig 5a e choose a place that is well ventilated e install in a location where at least two sides are unob Obstacle above structed so that the flow of air at the intake port or RA exhaust port is not blocked and so that sufficient j 9 Min Min A space is ensured for maintenance to be carried out 4 2m a D without trouble Air intake Min 20 cm In general the top also must be unobstructed 4 j lt d Min 22 e provide a solid base level concrete pad concrete 7 2 V o En 1 X cm block 15 x 40 cm beams or equal a minimum 77 PLR Va TIER 15 above ground level to reduce humidity and Fig 5b Ground Min 20 LI k protect the unit against possible water damage and decreased service life Fig 5 e install cushion rubber under unit s feet to reduce Anchor bone vibration and noise Fig 5d 4 pcs e use lug bolts or equal to bolt down unit reducing
14. Indoor unit SAP KRV184EH SAP KRV186EH SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH Fig 4b SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS unit mm Outdoor unit Indoor unit 012 70 012 70 a 06 35 012 70 012 70 d 26 35 09 52 Q EN 09 52 B 09 52 a 06 35 Fig 4c 12 70 15 88 Locally purchased 1 Flare 012 70 Union 015 88 Indoor unit p 015 88 012 70 26 35 SES 912 70 06 35 09 52 C 3 09 06 35 09 52 m x 09 52 E EU 09 52 x Flare 012 70 Union 09 52 r 012 70 09 52 Supplied reducer Fig 4d 12 70 15 88 Locally purchased E lou all Outdoor unit Flare 012 70 Union 015 88 Indoor unit p 15 88 12 70 d 26 35 012 70 a 912 70 d 26 35 09 52 gt EN 09 52 6 35 09 52 gt 09 52 6 35 09 52 Fig 4e SAP KRV184EH SAP KRV186EH SAP KRV184EH SAP KRV186EH SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHD
15. O o O Pa ga 32 10 z 10 2 cl LI o S pre 2 rH U 8 i 0 6 52 25 35 0 Outdoor air temperature Outdoor air temperature C 2 Operating current performance chart 2 Operating current performance chart 13 o lt pa U SIM P 3 pr sp 3 T zi 5 0 5 10 15 20 25 Outdoor air temperature C Outdoor air temperature C 3 Indoor discharge air performance chart 3 Indoor discharge air performance chart 55 Indoor discharge air temperature C Indoor discharge air temperature C Outdoor air temperature C NOTE Outdoor air temperature C This performance chart shows operation of a single wall mounted indoor unit The performance chart will vary depending on the indoor unit type Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value In this case be sure to stop all the indoor units where performance is not being checked The performance 15 for a tubing length of 7 5 m If the tubing length is different 14 the performance chart will vary Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KRV186EH x 1 E Cooling Characteristics Heating Characteristics RH 46 Indoor fan speed High fan RH 85 Indoor fan speed High fan 230V 50Hz 2
16. SAP KMRV76 96 126EH EVAPORATOR FERRITE CORE TERMINAL BASE q BLK GRN YEL YOOGLNO OL FLAP MOTOR RED PNK BLU BRN YEL LAMP CONNECTOR 9P WHT ASSY CONTROLLER FAN MOTOR WHT UV ASSY ROOM THERMISTOR ROOM COIL UV 6P WHT HA JEM A 4P WHT ORG RED COIL THERMISTOR BLK O E 8FA 2 5250 29700 2 Fig 33c SAP KRV96 126EHDS emen g2 GRN YEL LINN HOO EVAPORATOR EARTH PLATE T rT zor FLAP MOTOR 559 RED RED Sc BLK BLK 5 lt RED M S BLK QW3 4 THERMISTOR 550 BLK ROOM gt See 69 THERMISTOR ORG COIL Zz BLK W3 4 THERMISTOR BLK HUM WHT RED 8 BLK PANEL SW FLAP MOTOR gt dem LOWER PANEL MOTOR H3TIOHLNOO ASSV dWV1 GNI RED BLK WHT YEL BLU 8FA 2 5250 07400 1 Fig 33e 00 9c8 0Sc8 c V4d8 SNILOANNOO V ON HOOQNI SNILOANNOO LINN HOOQNI OL SNILOANNOO DON HOOQNI OL SNILOANNOO GON LINN HOOQNI OL SNILOANNOO LINN HOOQNI OL 1 ZHOS F ve 5
17. 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 10 meters More than 10 meters More than 10 minutes More than 15 minutes 6 Recharging Recharge unit in the same manner explained on the previous page 5 Recharging 40 9 7 Charging Additional Refrigerant 9 7 1 When Tubes are Extended 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 N CAUTION Never charge additional refrigerant if refrigerant is leaking from the unit Follow instructions given in 9 6 In Case Refrigerant is Leaking and completely carry out repairs Only then should you recharge the refrigerant 9 8 Retro Fitting Existing Systems 9 8 1 Use of Existing Units e 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 9 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 41 APPENDIX A INSTALLATION INSTRUCTIONS SAP CMRV3656EH 1 852 6 4190 480 00 1 The specifications of SAP KRV96EHDSA are the same a
18. Wide tube side a problem Fig 23 4 Disconnect the manifold gauge and the inter unit tubes and attach the caps and flare nuts At this point pump down is completed If the caps and flare nuts Z are not reattached there is the danger of gas leak Cap lt o age Refer to Fig 24 eA If pump down is possible Cap 2 If the air conditioner cannot be operated because of a RA malfunction or other cause use a refrigerant recovery 2293 lt device to recover the refrigerant lt 52 2 iren BAL attach the flare nuts Cap 22 q 05 with flare bonnets 8 o en Bog Og Fig 24 14 5 Wiring Instructions 5 1 General Precautions on Wiring 1 Before wiring confirm the rated voltage of the unit as shown on its nameplate then carry out the wiring closely following the wiring diagram 2 Provide a power outlet to be used exclusively for each unit with a power supply disconnect and leakage breaker fuse link for overcurrent protection provided in the exclusive line 3 To prevent possible hazard due to insulation failure the unit must be grounded 4 Each wiring connection must be done tightly and in accordance with the wiring system diagram Wrong wiring may cause the unit to misoperate or become damaged 5 Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous The
19. and national electrical codes e 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 CAUTION 9 unsafe practice which can 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 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 improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS when wiring 990000990000909090099000990990099900990990090999090009099090090000990009900009900099000909909000909000909099009090990900990990090999990999 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 G
20. 8 mm 9 52 mm 0 8 mm KRV184 186 6 35 mm 0 8 mm 12 70 mm 0 8 mm KRV244 246 6 35 mm 0 8 mm 15 88 mm 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 Indoor unit 2 Installation Site Selection Indoor Unit WARNING To prevent abnormal heat generation and the possibility of fire do not place obstacles enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow E i Drain hose Outside drainage AVOID Fig 1 e direct sunlight e nearby heat sources that may affect performance of the unit em 15 cm min Pay e areas where leakage of flammable gas may be expected min min e placing or allowing any obstructions near the air conditioner inlet or outlet e installing in rooms that contain instant on rapid start Front View fluorescent lamps These may prevent the air conditioner Fig 2 from receiving signals e places where large amounts of oil mist exist Tubing length L1 U EN e installing in locations where there are devices that EN generate high frequency emissions E DO Elevation umm EINE US H2 difference H1 OUTDOOR e select an appropriate position from which every corner of UNIT the room can be uniforml
21. 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 90000090900099000909900000090900000900900900000900000900000909000090900000090000909000090909000009900000900000909000090000000000000009900 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 upon completing installation that no refrigerant gas is leaking escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas APPLICABLE INDOOR UNITS OPERATING RANGE Table of Contents SPECIFICATIONS 2 1 2 2 2 3 DIMENSIONAL DATA ss sa Major Component Specifications 2 Other Component Specifications 2 REFRIGERANT FLOW DIAGRAM
22. N SWO1 Control P C Board Dip switch SWO1 IN un W T T R NIN TT Right front cover Fig 3 Control P C Board Slide downward Fig 2 View from front 25 7 3 2 Maximum Current Value Change Function The maximum current value is changed to 15 0A or 13 5A to prevent power breaker tripping It is set to 20A when the unit is delivered from the factory 1 When the high load is given Outside temperature is high in the cooling operation or outdoor temperature is low in the heating operation the capacity is reduced When the maximum current value change function is to be enabled make sure to receive the approval of the client 2 maximum capacity for cooling or heating operation is about as much as the rated capacity Description of function cooling or heating operation Max Current Value 15 0A 13 5A Example of operation for heating Power Point C Current Value A on the Point A 5 Frequency Stops operation Approx 3 minutes Operates at the target frequency at Point A and below Stops increases to the frequency between Points A and B Reduces the frequency by 1 Hz per 0 5 seconds when Point B is exceeded Stops operation and restarts it appoximately 5 minutes later if Point C is exceeded May operate when sudden voltage fluctuations occur gt Indicates trouble lt Maximum Current V
23. between the 2 tubes drops Open and close the electric expansion valve by hand to check it No temperature change special service magnet and rotate at least 5 revolutions counterclockwise to Replace the electric fully open the electric expansion valve expansion valve 1 If you have manually checked the electric expansion valve be sure to reapply the outdoor power after you have replaced the wiring The position of the elecric expansion valve will changed 32 8 Branch tubing temperature sensor Check that the sensor is securely contained in the thermostat holder 9 Breaker Check whether or not the breaker has been tripped Check that the breakers and fuses used are of the specified capacity Check that the breaker and its line are exclusive for A C use 10 Refrigerant gas pressure Start a COOL test run and messure the temperatures of the A C intake air and discharge air Compare the values with the performance charts e f the values are higher than the performance charts Check for refrigerant shortage or blockage of the refrigerant circuit Assessment of refrigerant shortage gt 1 The pressure in the low pressure section is 5 MPa or more below the value in the performance charts 2 There is little condensation on the indoor heat exchanger which overall appears dry lt Distinguishing between refrigerant shortage and refrigerant circuit blockage gt If the pressure in the low pressure
24. board fuse has blown approximately 30 minutes will be required to discharge the high capacity electrolytic capacitors 27 8 2 Self Diagnostics The self diagnostics is performed and the results are indicated with the combined patterns of lighting ON blinking and lighting OFF of the 4 error monitor lamps on the Control P C Board I kam 8 2 1 Method of Self Diagnostics To prevent electric shock do not inspect or repair until the Power Lamp on the Control P C Board is turned off 1 Remove the right front cover Refer to Fig 2 in 7 3 1 Noise Reducing Control for details 2 Turn on the switch No 2 of the dip switch SW01 on the Control P C Board Fig 6 Check the combined status of the error monitor lamps Fig 6 and refer to the 8 2 2 Display of Error Monitor Lamps for the self diagnostics The error monitor lamps indicate the past 3 error patterns including the latest one N M R i m NN p UNR l ut IND Control P C Board Right front cover Slide downward Fig 5 View from front Power lamp Error monitor lamps SWO1 H H Dip switch SWO1 Fig 6 Control P C Board 28 8 2 2 Display of the Error Monitor Lamps Error Monitor Lamp X OFF _ 3 Blinking ON ErrorO Error1 Error2 Error3 Diagnostics Item Diagnostics Contents Sensor for branch pipe A failure Narrow tube Sensor for branch pipe B failure Narrow tube Sensor for branch pipe C fail
25. following characteristics e inside surface is glossy and smooth MQM S Y MMMM edge is smooth gt ma Copper 5 M Qe tubing 2 ZZ 0 0 5 mm D 1 2 mm Flare tool Fig 11 e tapered sides are of uniform length If the special RA10A If the previous flare tool flare tool is used clutch type is used Adjust so that the amount of tube protrusion is as shown in the figure Fig 10 10 3 5 Caution Before Connecting Tubes Tightly a Be sure to apply a sealing cap or water proof tape to prevent dust or water from getting into the tubes before they are used b Besure to apply refrigerant lubricant to the matching surfaces of the flare and union before connecting them together This is effec tive for reducing gas leaks Fig 12 c For proper connection align the union tube and flare tube straight with each Fig 12 other then screw in the flare nut lightly at first to obtain a smooth match Fig 13 3 6 Tubing Connections a Temporary connection Screw in 3 5 turns by hand Fig 14 b Tofasten the flare nuts apply specified torque as Union Flare nut Apply refrigerant lubricant here and here Table 4 Fig 13 Tube Dia Tightening Torque 6 35 mm 14 18 N m 140 180 kgf cm 9 52 mm 34 42 N m 340 420 kgf 12 70 mm 49 61 N m 490 610 kgf cm 15 88 mm 68 82 N m 680 820 k
26. forced defrost operation to check this function Work procedure Check items unit operation Connect a dummy resistor of 39 k ohm to the outdoor Non stop defrost coil temperature sensor connector I 30 sec lt Indoor fan 70 Hz CM I 1 Solenoid valve 5 sec for hot gas bypass OFF ____ Outdoor fan Defrost start Release The maximum length of defrost operation is 12 minutes Defrost can also be released based on the below conditions for the outdoor heat exchanger sensor Less than 2 minutes gt Not released 2 minutes or more 14 or higher 71 1 However the condition is 20 C or higher when the outdoor air temperature is below 0 C 30 f Each Part iagnosis o 8 4 Trouble D 8 4 1 Problems of Each Part and Inspection Points e For details about the inspection points refer to the Inspection Points for Each Part O o on eyenbepeui 10 104 0 10 009 s oq ejyeJedo jou 9u Jn990 seop 15090 SJno90 1 uBiu SI JOOPINO eu L eseoJoul ou peeds 10sse4duiJoo 94 eje1edo jou s
27. length of 7 5 m If the tubing length is different the performance chart will vary 16 6 ELECTRICAL DATA O oc Q gt x o o nr 556 C oo 109 7109 O me mz gt gt m X OIL3NOVIN 28 2352 52 52 52 5 5 i ii ii Q La 128 m mor x mm mm m o o gt HE UPS E 22 22 32 22 2 oo oO o o lt lt lt oo 89 lt lt lt lt 26 39 mm rr 2 2 ri 22 gt m o gt RF AA F 118121 v e z 1 ET biei EE 11111 JHL 1 3 V AW L 20 LOND 535 LHM 3A LHM LHM HOLON O C F HOSS3HdWOO a H10 c OLL3NOVMW 9956 13A 2 Seo L C T3A NH9 gt O O SNILO3NNOO a LINN o HOOQNI OL gt HOLINOW HOHH3 quvoaoOd IOHINOO ONILOANNOO O1 i A00F1V 6761 ONILOANNOO os A00b VS D ON LINN A HOOQNI OL qatu LHM a ans AS H3lV3H NIOV ERA 2 9 2 2 9 9 s r s c r HOLSINHAHL dana vuadia F V3H JSVOMNVHO 940 109 HOLOV3H ONILOANNOO a AVM 109 LINN P
28. manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes 5 2 Recommended Wire Length and Diameter Hegulations on wiring diameter differ from locality to locality For field wiring requirements please refer to your local electrical codes Carefully observe these regulations when carrying out the installation Table 6 shows maximum wire lengths for control line and power line and fuse or circuit capacity Refer to the wiring system diagram Fig 25 for the meaning of B and C in Table 6 Table 6 Cross Sectional Max Power Line Length m Max Control Line Length m Fuse Area mm A B C 35 10 Circuit Capacity Nu Aa e Be sure to comply with local codes on running e To avoid the risk of electric shock each air the wire from the indoor unit to the outdoor unit conditioner unit must be grounded size of wire and wiring method etc e For the installation of a grounding device e Each wire must be firmly connected please observe local electrical codes e No wire should be allowed to touch refrigerant e Grounding is necessary especially for units tubing the compressor or any moving part using inverter circuits in order to release e Be sure to connect power wires correctly charged electricity and electrical noise matching up numbers on terminals of the caused by high tension outdoor unit and respective indoor units
29. since this will decrease the heat insulation effect Also be sure the condensation drain hose splits away from the bundle and drips clear of the unit and the tubing Insulated tubes Fig 18 3 9 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 19 Tubing Fig 19 11 4 Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below Therefore they must be purged completely Service e pressure in the system rises valve on e operating current rises dedii Manifold gauge 9 special for R410A e cooling efficiency drops 2 Low pressure High pressure valve e moisture in the air may freeze and block capillary tube 2 UE tubing side A Leave the for preventing reverse flow valve open e water may lead to corrosion of parts in the Eu refrigerant system Vacuum pump Hex wrench B Air Purging with a Vacuum Pump nominal size 4mm Charging hose for Test Run With push pin not provided special for e In order to protect the earth s environment be sure to use a vacuum pump to perform the air purge Never perform an air purge by using the refrigerant gas cylinder or other external gas or by using the gas inside the outdoor unit Perform the air purge for tubes A B
30. uuu uuu u usuku IH aH Hetro Fiting Existing Systems decia chase sumus 2s Page APPENDIX INSTALLATION INSTRUCTIONS sse APPENDIX UNIT COMBINATION TABLES B APPLICABLE INDOOR UNITS SAP SAP SAP SAP SAP KMRV76EH KMRV96EH KMRV126EH KRV186EH KRV246EH Multi Outdoor Unit Multi Outdoor Unit KRV96EHDSA KRV 126EHDS 1 The table lists the wall mounted type of indoor units as representative models 2 For details on the applicable indoor units other than the wall mounted type refer to the catalog 1 OPERATING RANGE Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KMRV76EH SAP KMRV96EH SAP KMRV 126EH SAP KRV186EH SAP KRV246EH SAP KRV96EHDSA SAP KRV126EHDS Temperature Indoor Air Intake Temp Outdoor Air Intake Temp 32 C D B 23 C W B 43 C D B Cooling 19 C D B 14 C W B 10 C D B 27 C D B 24 C D B 18 C W B 16 C D B D B 15 C W B Heating 2 SPECIFICATIONS 2 1 Unit Specifications Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KMRV76EH x 5 Max Capacity of Operating Indoor Units kW 17 55 Voltage Rating 230V Performance Capacity kW 10 0 3 540 11 5 12 0 4 010 14 5 BTU h 34 100 11 900 to 39 200 40 900 13 600 to 49 500 Air Circulation High mh FPowerFactor o o _ EER W 3
31. 0A Never use a refrigerant other than 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 e 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 36 9 3 Tools Specifically for R410A e For servicing use the following tools for 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 Vacuum pump 2 be used if the following adapter is attached 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 Doing so will cause malfunction of the unit aren e The above tools specifically for R410A must not be used for R22 and R407C e For the above vacuum pump 1 2 and vacuum pump adapter 3 t
32. 30V 50 2 1 Low pressure performance chart 1 High pressure performance chart AL LLL MPaG kgf cm G MPaG kgf cm G VS Low pressure at wide tube service High pressure at wide tube service valve Outdoor air temperature Outdoor air temperature 2 Operating current performance chart 2 Operating current performance chart Operating current A Operating current A Outdoor air temperature C Outdoor air temperature C 3 Indoor discharge air performance chart 3 Indoor discharge air performance chart 60 1 gt Indoor discharge air temperature C wW Indoor discharge air temperature Outdoor air temperature C Outdoor air temperature C NOTE This performance chart shows operation of a single wall mounted indoor unit The performance chart will vary depending on the indoor unit type Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value In this case be sure to stop all the indoor units where performance is not being checked The performance is for a tubing length of 7 5 m If the tubing length is different the performance chart will vary 15 Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KRV246EH x 1 E Coo
33. 4 1 Refrigerant Flow Diagram a aaa PERFORMANCE DATA 5 1 Ternperalll ee uo ELECTRICAL DATA 6 1 Elec 2210 6 RR Umm FUNCTIONS 7 1 7 2 7 3 meneses u _________ _ ______ 6_ TROUBLESHOOTING 8 1 8 2 8 3 8 4 8 5 Precautions before Performing Inspection or Repair SOI Dago el RE TT Checking the Systemi mom Trouble Diagnosis OF Each PAN Trouble Diagnosis of Fan Motor ta id ori REFRIGERANT SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 Characteristics of New Refrigerant R410A Checklist before Servicing nee nnne nnne nnne nnne nns Tools Specifically for Rennen 6 nennen nnn Tubing Installation Procedures IE Eod In Case of Compressor Malfunction emen nennen nnn In Case Refrigerant is LEAKING 2 charging Additional Belrigeralbll
34. 65 3 5 3 5 5 15 20217 It is therefore possible to connect five units with respective capacities of 2 2 2 65 3 5 3 5 5 15 However since this combination is not found in the 5 room operation column of Table 1 c operating all these units concurrently may result in trouble At a time like this shut down at least one of the five indoor units to match one of the combinations found in the 4 room operation column of Table 1 b Be sure to operate the air conditioning system only when 2 or more indoor units have been installed If operated with only a single unit installed the returning fluid to the compressor may cause a malfunction SANYO Electric Co Ltd Pub Ol 85264181116001 SANYO 2009 Osaka Japan Combinations of operatable indoor units gt uoneJedo 4 2 uoneJedo ejBuis es urs sre v r hmm gt O 4 I q 9 q V Don s m eoueulojeg 0101 5 5 H39cl rcLAHIWM dVS SIOHg96Au dvs H396 Y6A uIW5 dVs H39Z rZAHIW5 dVS SAP CMRV3656EH Rated cool H398L
35. 7L Operation Temp Run Capacitor Crankcase Heater 230V 25W Propeller Q ty Dia mm 1 D490 Coil Resistance Ambient Temp 20 Safety Device Type Internal Controller Over Current Protection Over Heat Protection Run Capacitor Heat Exchanger Coil Fin Pitch mm Face Area m Acrylic baked on enamel finish DATA SUBJECT TO CHANGE WITHOUT NOTICE 2 3 Other Component Specifications Sensor Name Model No of sensor Quantity of Sensor SAP CMRV3656EH Outdoor air temp sensor TKS295B Outdoor heat exchanger sensor TKS334B AW AN sensor TKS334B CW CN sensor TKS334B DW DN sensor TKS334B EW EN sensor TKS334B Sensor Name Resistance k ohm 20 Model No of sensor 15 10 5 0 5 10 Temperature C Resistance k ohm BINE MEENE 0 LLL E LEE eee a ASE RRR LA TT A __ PTT ETT 10 20 30 40 50 60 70 80 90 gt Temperature C 9 3 DIMENSIONAL DATA Outdoor Unit SAP CMRV3656EH TK lt cc lt dia 9 52 3 8 x 3 Wide tube service valve Narrow tube service valve AIR DISCHARGE 1 4 x 5 dia 6 35 S E
36. A E Otherwise electrical shock may occur e Place a dedicated ground more than 2 meters away from other grounds and do not have it CAUTION shared with other electric appliances e Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram The indoor unit draws its power from the outdoor unit e Do not run wiring for antenna signal or power lines of television radio stereo telephone security system or intercom any closer than 1 meter from the power cable and wires between the indoor and outdoor units Electrical noise may affect the operation 15 5 3 Wiring System Diagram Fig 25 OUTDOOR UNIT Grounding line 5 4 How to Connect Wiring to the Terminal E 5 SL SL R Z OO Grounding line WARNING Loose wiring may cause the terminal to 8 overheat or result in unit malfunction A 22 fire hazard may also exist Therefore be 9 56 sure all wiring is tightly connected AO TL When connecting each power wire to the corresponding terminal fol low the instructions How to connect wiring to the terminal and fasten 2 GO Ossa is the wire securely tight with the fixing screw of the terminal plate TO B 26 Za E How to connect wiring to the terminal 5 S SR a For Indoor Unit E 59 1 Cut the wire end with a cutting pliers then strip the insulation to O expose t
37. AT SENSOR DRY or COOL item Operation lamp illuminates Indoor fan is stopped to prevent cold air from being emitted Outdoor unit begins operating after forced stop is canceled the compressor starts the outdoor fan starts When the indoor coil temperature rises the indoor fan changes from LL to the set fan speed When the frequency reaches Hz frequency increases are stopped for a period of 8 seconds Refor to Table 2 Freguency control The frequency then increases The indoor temperature and the remote controller temperature setting are approximately equal The indoor fan is stopped In order to protect the compressor the outdoor unit will not operate for 5 minutes after the thermostat turns OFF even if the room temperature drops below the desired temperature The frequency is not increased even if there is a difference between the room temperature and the desired temperature In some cases the frequency may be decreased The indoor fan is started 18 The unit is forced to stop for 5 minutes after the power is turned ON or 5 minutes after the compressor stops in order to protect the compressor The frequency is increased at the rate of 1 Hz every 0 5 seconds Depending on the relationship between the remote controller temperature setting and the room temperature the compressor may stop temporarily in other words the thermostat may turn OFF This is in order t
38. C D and E Use the same procedures for all tubes In order to prevent charging errors with the air conditioner that uses R410A the screw diameter at the service valve charging port has been changed When recharging or performing other servicing use the special charging hose and manifold gauge Fig 20 1 Check that each tube both narrow and wide Stopper Cap tightening torque tubes between the indoor and outdoor units have 0 25 been properly connected and all wiring for the test Y 200 250 kgf cm 7 l Tighten by hand then run has been completed Note that both narrow use a wrench to turn Screw diameter 1 2 and wide tube service valves on the outdoor unit UNF 20 threads approximately 45 are kept closed at this stage Valve core Tm 7 2 Using adjustable wrench or box wrench 3 224 lt remove the valve caps from the service valve on both narrow and wide tubes ELLI p Cap nut tightening torque 3 Connect a vacuum pump and a manifold valve 7 11 Nm with pressure gauges to the service port on the 70 110 kgf cm Tighten by hand then use a wide tube service valve Fig 20 wrench to turn approximately 30 CAUTION Before using the vacuum pump Structure of service valve on wide tube side adapter read the vacuum pump Fig 21 adapter manual and use the adapter correctly caution Be abi 9 manne valve e When us
39. HDS gue SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH 09 52 SAP KRV96EHDS KRV126EHDS House SAP KMRV74EH KMRV94EH KMRV124EH A SAP KMRV76EH KMRV96EH KMRV126EH 09 52 SAP KRV96EHDS KRV126EHDS Fig 4f G Outdoor unit 120 Indoor unit 212 SAP KRV184EH SAP KRV186EH 012 70 D E SAP KRV184EH 2555 SAP KRV186EH dose 012 70 C SAP KRV184EH m im SAP KRV186EH 06 35 adok SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH nu SEE SAP KRV96EHDS KRV126EHDS EIER SAP KMRV74EH KMRV94EH KMRV124EH eo SAP KMRV76EH KMRV96EH KMRV126EH 29 527 SAP KRV96EHDS KRV126EHDS Flare 09 52 Union 012 70 joint for connecting tubes of different sizes 09 52 12 70 Locally purchased Fig 4g H 912 70 015 88 Locally purchased 1 Outdoor unit k 015 88 Indoor unit 015 ELT ER A SAP KRV244EH 012 70 2635 012 70 D SAP KRV184EH 012 70 SAP KRV184EH SAP KRV186EH 06 35 2 SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH 2635 SAP KRV96EHDS KRV126EHDS 09 52 xus 06 35 Flare 09 52 Union 012 70 SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS A joint for connecting tubes of different sizes 09 52 912 70 Locally purchased
40. M V x gt T N o P N r 5 5 O O st O W GZ GL 91 SZ 809 016 Ser 06 852 0 0010 18600 0 Unit mm 10 4 REFRIGERANT FLOW DIAGRAM 4 1 Refrigerant Flow Diagram Outdoor Unit SAP CMRV3656EH Indoor unit Outdoor unit Service valve on wide tube Wide tube EW Wi Main x 0 0 12 7 A accumulator accumulator 2 DW pce D O D 12 7mm K gt gt E x l __ 5 9 O D 9 52mm K Nu t BW x O D 9 52mm K 24 x KS oa 0 0 952 Muffler Away 7 gt x valve s li x Electric Defrost valve V 6 x expansion for hot gas bypass Service valve on valve narrow tube V 5 x x Narrow tube EN I O D 6 35mm pes m DN 2 x O D 6 35mm Ls a B x l CN 111 0 0 6 35 ES a BN F DX HDX x lt O D 6 35mm m Cooling cycle gt lt I lt Receiver tank x O D 6 35mm Strainer TE x Heating cycle I lt 2 Defrosting cycle 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 n Insulation preven
41. S SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KRV244EH SAP KRV246EH SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KRV244EH SAP KRV246EH SAP KRV184EH SAP KRV186EH SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH 126 SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH KMRV126EH SAP KRV96EHDS KRV126EHDS SAP KMRV74EH KMRV94EH KMRV124EH SAP KMRV76EH KMRV96EH 126 SAP KRV96EHDS KRV126EHDS unit mm 012 70 015 88 Locally purchased 7 Outdoor unit Flare 012 70 Union 015 88 Indoor unit 015 88 SAP KRV244EH 012 70 s x 015 88 HE SAP KRV244EH SAP KRV246EH 06 35 29 52 SAP KMRV74EH KMRV94EH KMRV124EH NB SAP KMRV76EH KMRV96EH KMRV126EH 09 52 i 7635 SAP KRV96EHDS KRV126E
42. When charging with a refrigerant cylinder use an electronic scale for charging refrigerant In this Fig 1 case if the volume of refrigerant in the cylinder becomes less than 20 of the fully charged PEN 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 21950 using a capacity of a 10Kg me Single valve with siphon tube minimum necessary amount for the cylinder is Charge with cylinder in normal position 0 76 10 x 0 20 2 76Kg Fig 2 For the remaining refrigerant refer to the instructions of the refrigerant manufacturer e lf using charging cylinder transfer the specified amount of liquid refrigerant from the refrigerant cylinder to the charging cylinder Charging Prepare an evacuated charging cylinder i cylinder beforehand CAUTION 9 To prevent the composition of R410A from changing never bleed the refrigerant gas into the atmosphere while transferring the refrigerant Fig 3 Ope Refrigerant cylinder Do not use the refrigerant if the amount in the Fig 3 charging cylinder is less than 20 39 9 6 In Case Refrigerant is Leaking CAUTION Never attempt to charge additional refrigerant when
43. Y8L AHM dVS Joopu ONILVAH ONIIOOO MY edeg Joopu em uoneJedo 3 v xw uWw 3 v PM on cen TM ou s eoueulopeg 10 roe oon SNI1V3aH ONIIOO2 HUN Joopu H39vrZ PvEAHM dVS Qq L 9IqQE L H398L F8LAHM dVS SL SQH39ZLAHM dVS LAHWM dVS II H SQH396AHM dVS H396 P6AHWY dVS S9 H397 pP AHWM dVS 122 Bojejeo eui 19491 eui uey SHUN JO uoroeuuoo y UO SIIBJ P 104 e eAnejueseJdei se Joopur Jo eui 5154 94 e uoneJedo UJOOJ G 4 III 4 III 1 eee ee e
44. aces that are required in order to maintain performance Install in a location where the dimensions indicated by lt gt are ensured and where 2 or more faces of the unit are unobstructed In principle the top direction should be unobstructed Leakage breaker link Terminal cover N Access panel C A NEMO e Base not provided concrete or similar material Ground wire Fasten with anchor bolts not not provided provided 3 8 or M10 4 locations Fig 6b 9 unit mm 3 Installation Process 3 1 Embedding the Tubing and Wiring e Do not connect tubes to locations that are embedded Be sure to bind refrigerant tubing and inter unit cables together with vinyl tape The power cable must be obtained on site 3 5 mm Less than 26 m Be sure to apply the provided labels to both ends of the inter unit cables to prevent miswiring Securely seal the end of embedded tubing with vinyl tape in order to prevent dirt or moisture entry In order to prevent insulation breakdown and ground faults do not allow the wire ends to come in contact with rainwater or be subject to dew condensation Outdoor unit 3 2 Drain Cap and Drain Elbow First refer to Section 2 Installation Site Selection 2 X N NOTE N The drain hole at the bottom of the outdoor unit was not plugged at the v V time of factory ship
45. alue Change Procedure gt 1 Remove the right front cover Refer to Fig 2 in 7 3 1 Noise Reducing Control for details 2 When the switch No 1 of the dip switch SW02 on the control P C Board is turned ON the maximum current value change function is available Fig 4 3 Using the switch No 2 of the dip switch SW02 on the control P C Board the maximum current value is changed Fig 4 Power lamp SW02 Dip Switch Max Current Value 15 0A C Mo Ng 12 Dip switch 5 02 Fig 4 Control P C Board 26 8 TROUBLESHOOTING 8 1 Precautions before Performing Inspection or Repair Both the indoor unit and outdoor unit include electronic control circuits Be sure to pay attention to the following before inspecting or repairing the outdoor side electronic circuits e High capacity electrolytic capacitors are used inside the outdoor unit controller inverter They retain an electrical charge charging voltage DC 311 V 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 control circuit board Power Lamp red turns OFF If the outdoor control circuit board is normal approximately 180 seconds will be required for the charge to dissipate However allow at least 30 minutes for the charge to dissipate if it is thought there might be trouble with the outdoor control circuit board For example if the outdoor control circuit
46. ce 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 haz WARNING ard or unsafe practice which can result in severe personal injury or death This symbol refers to a haz ard or unsafe practice which can result in personal injury or product or property dam age 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 improper installation or maintenance service including failure to follow the instructions in this document SPECIAL PRECAUTIONS when Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH ONLY A QUALIFIED EXPERIENCED ELEC TRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tub ing are completed or reconnected and checked Highly dangerous elect
47. ctivates stopping any increases in frequency The room temperature DRY operation starts Operating frequency is stabilized in order to reaches the desired maintain a comfortable environment temperature and there is no need for further DRY A operation ling dal The indoor fan changes between Low Operates to effectively dehumidify the air while and LL very low over a 6 minute cycle not excessively reducing the indoor This is 1 f fluctuation fan operation temperature Refer to Fig 2 The indoor unit operates at 1 f fluctuation fan operation at a fan speed that does not cause a chilly feeling The room temperature is DRY B operation 15 C or higher and is slightly too cold 1 The indoor fan changes between Low The compressor operates on a 3 minutes ON and LL very low over a 6 minute cycle 6 minutes OFF cycle to prevent the room This is 1 f fluctuation fan operation temperature from dropping too much V 2 After appoximately 3 minutes the compressor turns OFF the outdoor fan turns OFF and the indoor fan turns OFF 3 After approximately 6 minutes the conditions return to 1 The room temperature is Monitoring operation begins When monitoring operation begins the below 15 C compressor stops and the indoor fan operates at LL very low speed 1 f fluctuation fan 250 200 150 Step 100 ee ee
48. e earth s environment be sure to perform pump down to recover refrigerant gas without releasing it into the atmosphere e When relocating or disposing of the air conditioner request this service from the dealer where the unit was purchased or from an appropriate agent Perform pump down as described below What is pump down e Pump down refers to recovering the refrigerant gas from the refrigerant cycle at the outdoor unit This work must be performed during cooling operation The refrigerant gas cannot be recovered during heating operation e During winter or if the temperature sensor prevents cooling operation perform forced cooling operation Narrow tube side Charging port Pump down procedure 1 Fully close the spindles at the valves on the narrow tube side of tubes A B C D and E Refer to Fig 22 2 Connect the manifold gauge to the charging port at the E valve on the wide tube side of tube E Purge the air from the charging hose Refer to Fig 23 3 Perform cooling operation or forced cooling operation When the pressure at the low pressure side is 0 05 0 1 MPaG 0 5 1 kg cm G fully close the spindles at the valves on the wide tube side of tubes A B C D and E and immediately stop operation Refer to Fig 23 In the winter the outdoor unit may stop after 5 10 min utes of operation This is in order to protect the indoor unit heat exchanger from freezing and does not indicate
49. e fan and compressor s motor speed When this function is used the cooling or heating ability is slightly degraded Therefore when this function is to be enabled make sure to receive the approval of the client Operation Sound Specifications Noise Reducing Control i Fan s motor speed 550rpm Cooling 50 dB A 53 dB A 47 dB A 47 dB A In Cooling Operation In Heating Operation Outdoor Air Temp C Outdoor Air Temp C Normal Operation Noise Reducing Operation 33 15 Normal Operation or Normal Operation or Noise Reducing Operation is kept Noise Reducing Operation is kept Be Initial setting is the normal operation Initial setting is the normal operation Noise Reducing Operation Normal Operation 1 In the test operation high power operation defrost operation or low ambient cooling operation to be cancelled at the outside temperature of 14 C or less or 17 C or more the noise reducing control is not available 2 In the noise reducing operation the fan s maximum motor speed is limited to 550rpm Also the maximum frequency Hz is controlled in the cooling 42Hz or heating operation 40 2 Switching Procedure to Noise Reducing Control 1 Remove the 3 screws fixing the right front cover and remove the right front cover Fig 2 2 When the switch No 1 of the dip switch SW01 on the control P C Board is turned ON the noise reducing control is enabled Fig 3 Power lamp n
50. e is outdoor unit controller trouble or motor trouble Therefore first replace the outdoor unit controller then if necessary replace the DC motor 34 9 REFRIGERANT SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9 1 Characteristics of New Refrigerant R410A 9 1 1 What is New Refrigerant 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 conventional refrigerant R22 9 1 2 Components mixing proportions HFC32 5096 HFC125 50 9 1 3 Characteristics e Less toxic more chemically stable refrigerant e 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 e 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 t
51. e stripper 16 Vacuum pump For R410A 4 Tape measure 17 Manifold valve 1 2 Accessories Supplied with Unit Table 1 Reducer 012 70 9 52 ain elbow Labels for inter unit FATE 6 each s Figure Packed in the outdoor unit 1 3 Optional Copper Tubing Kit 2 Foamed polyethylene insulation for the specified copper tubes as required to precise length of tub ing Wall thickness of the insulation should be not less than 8 mm 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 air conditioning workshop 3 Use insulated copper wire for field wiring Wire size varies with the total length of wiring to 5 Wiring Instructions for details 1 4 Type of Copper Tube and Insulation Material If you wish to purchase these materials separately from a local source you will need 1 Deoxidized annealed copper tube for refrigerant caution Check electrical codes tubing as detailed in Table 2 and regulations before obtaining wire Also check any specified instructions or limitations Cut each tube to the appropriate lengths 30 cm to 40 cm to dampen vibration between units Table 2 Narrow Tube Wide Tube Model Outer Dia Thickness Outer Dia Thickness KMRV74 94 1 24 6 35 mm 0 8 mm 9 52 mm 0 8 mm 9 52 mm 0 8 mm KRV96 126 6 35 mm 0
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53. en the cause of the current rise is eliminated Description of function Example of operation for heating 25A 19 5A 18 3A Current nnr 8 D lt D Frequency Frequency Stops operation Approx 3 minutes Operates at the target frequency at Point A and below Stops increases to the frequency between Points A and B Reduces the frequency by 1 Hz per 0 5 seconds when Point B is exceeded Stops operation and restarts it appoximately 5 minutes later if Point C is exceeded May operate when sudden voltage fluctuations occur gt Indicates trouble 1 Automatic frequency control The operating frequency is reduced automatically or operation is stopped in order to control the operating current so that it is at or below the values shown in the table below 20A HEAT COOL Point C peak cut trip 25 0 25 0 Point B Hz reduction 19 5 17 5 Point A Hz increase prohibit 18 3 16 3 During defrost operation the COOL current setting value is used 2 Current control The operating frequency upper limits shown in the figure below are established for frequency reduction and increase prohibit Current A Example of operation during cooling Trip Hz reduction Hz reduction Hz increase prohibit Hz increase prohibit 16 pe a io Z a Frequency Hz 23 7 2 3 Low Start Current Operation starts at
54. eop 991 Outdoor unit JOU seop Indoor unit eyeJedo JOU 5 o o Q 6 c 6 e Inter unit cable Electric expansion valve temperature sensor Switch circuit board Outdoor control circuit board Diode module Outdoor fan motor Coil thermistor Branch tubing Indoor controller control unit Room temperature sensor Heat exchanger temperature sensor Fuse protective sensor Problems Inspection EC O 31 8 4 2 Inspection Points for Each Part 1 Outdoor control circuit board Refer to 8 3 1 Checking the outdoor unit Do not remove or insert the outdoor control circuit board connector when power is being supplied to it The controller will be damaged 2 Fuse Check it visually or the continuity with a tester 3 Compressor Check for an open circuit in the compressor coil winding 4 Compressor protective sensor compressor discharge temperature thermistor Check that the senseor is securely contained in the thermostart holder b 4 way valve Short circuit the T RUN terminal to the COM terminal of TEST T RUN terminals Perfrom a test run of the unit alone and check whether the 4 way valve inside the outdoor unit produces a click sound 6 Coil thermistor Check that the sen
55. failure Compressor discharge overheat 1 Electronic expansion valve failure 2 Capillaries choked prevention activated 3 Shortage of refrigerant 1 Open phase 2 Compressor failure 3 Control PCBoard HIC Board failure No refrigerant protection 1 Service valve not opened 2 Shortage of refrigerant 2 1 Contact failure at connector 2 Fan motor failure 3 Control PCBoard failure 1 3 HIC circuit trouble 5 7 gt DC fan motor drive failure Be lt HEY OX EX EPO EP PE x PX LEE PE EY x LL pe x x e hal pe kad had pee x pe pe e pe pe pe S De Dx pe ad ad ad k kas kad 8 3 Checking the Outdoor System 8 3 1 Checking the outdoor unit Work procedure Check items unit operation Apply 220 V AC between terminals L and N on the The LED red on the control board must illuminate outdoor unit terminal plate Short circuit the T RUN terminal to the COM terminal The compressor fan motor 4 way valve and solenoid of TEST T RUN terminals valve for the hot gas bypass must turn ON They turn ON about 70 seconds later after the power is turned ON If the above check items are okay but the outdoor unit does not operate there be a faulty connection between the indoor unit and the outdoor unit 8 3 2 Checking the defrost operation e Using
56. gf Service valve on narrow tube side Service valve on wide tube side Be sure to match refrigerant Apply the provided labels to the indoor and outdoor I e unit tubing connectors to tubing and electric Wiring lt gt prevent errors in between indoor and outdoor connections units Fig 14 3 7 Insulation of Refrigerant Tubing To prevent heat loss wet floors due to dripping of condensation both tubes must be well insulated with a proper insulation material The thickness of the insulation should be a minimum SN 8 mm Fig 17 Outdoor unit Fig 15 Spanner Indoor unit 3 8 Taping the Tubes After a tube has been Insulation CAUTION insulated never try to Y EE bend it into a narrow Min min 8 mm m P curve as this may cause the tube to break or crack Fig 16 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 2 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 18 3 Clamp the tubing bundle to wall using 1 clamp approx every 120 cm NOTE Apply putty here Do not wind the armoring tape too tightly
57. gnificant AUTO mode is selected settings as before operation was stopped change in the indoor and outdoor temperatures with the remote and the previous conditions COOL are stored controller In order to protect against freezing the compressor stops temporarily until the temperature of the indoor heat exchanger has risen Operation starts after 4 New operating mode is determined based on hours or more have the temperature conditions at the time the passed ON OFF operation button is pressed Frequency control x Hz Outdoor air temperature is below 0 Outdoor air temperature is 0 C or higher 55 Hz 180 seconds 90 seconds Table 2 20 1 f fluctuation fan Control conditions Unit operation Explanation SENSOR The ON OFF operation The operation lamp illuminates The outdoor unit does not operate for 5 minutes DRY button on the remote The indoor fan operates at the set fan speed even after the breaker is turned ON controller is pressed The outdoor unit stops The outdoor unit starts The frequency is increased at the rate of 0 5 Hz every 1 seconds Compressor and the outdoor fan start When the frequency reaches Hz This is in order to stabilize the return of oil to the frequency increases are stopped for a period compressor of B seconds Refer to Table 2 The frequency then increases If the indoor and outdoor temperatures are high the current peak cut off a
58. h the same temperature assumed that there has been no significant AUTO mode is selected settings as before operation was stopped change in the indoor and outdoor temperatures with the remote and the previous conditions HEAT are stored controller Operation starts after 4 New operation begins based on the hours or more have temperature conditions at the time the passed ON OFF button is pressed Outdoor heat Temperature of releasing exchanger temperature Defrost operation time Less than 2 minutes Heat exchanger temperature for releasing defrosting Outdoor air temperature No releasing 14 C or higher 1 1 The temperature for releasing of defrosting is 20 C or higher when the outdoor air temperature is less than O C Fig 1 Table 1 19 mE Control conditions Unit operation Explanation COOL The ON OFF operation The operation lamp illuminates The outdoor unit does not operate for 5 minutes button on the remote The indoor fan operates at the set fan speed even after the breaker is turned ON controller is pressed The outdoor unit stops The outdoor unit starts The frequency is increased at the rate of 0 5 Hz every 1 seconds Compressor and the outdoor fan start When the frequency reaches Hz This is in order to stabilize the return of oil to the frequency increases are stopped for a period compressor of B seconds Refer to Table 2 The frequency then increases If the indoo
59. he outdoor heat exchanger is at or below the L1 line for 48 minutes If outdoor air temperature is less than 3 C the time is 48 minutes 2 After HEAT operation begins the temperature of the outdoor heat exchanger is at or below the L2 line for 120 minutes Solenoid valve for hot gas bypass ON 4 way valve Remains ON Operation lamp Red and orange ON alternately The 4 way valve remains ON during defrost The outdoor fan stops and the solenoid valve turns ON allowing the refrigerant to bypass the indoor unit The operating frequency during defrost is 70 Hz Frequency is lowered if the current peak cut off function is activated The maximum length of a single defrost operation is 12 minutes For the outdoor heat exchanger temperature conditions for ending defrost refer to Table 1 Defrost release Indoor fan turns ON After 10 seconds the solenoid valve for hot gas bypass turns OFF When the cold air feel has disappeared the indoor fan starts and gradually increases speed until it reaches the set speed STOP All indicator lamps turn OFF The indoor and Clean defrost outdoor units stop Defrost is performed when the outdoor unit is stopped and the temperature of the outdoor unit coil is at or below the L1 line Refer to Fig 1 Operation is restarted Starts operating in the same operating mode Within 4 hours after operation was stopped it is within 4 hours only when HEAT and wit
60. he refrigerant while it is in liquid phase Ether type ol is used for compressor oil for R41 Units which 15 from the mineral oil used for R22 Thus more attention to moisture prevention and faster replacement work compared with conventional models are required 9 2 Checklist before Servicing Use 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 tool is used make sure to observe A Specification amount of extrusion by using the flare spacer Specification A Diameterottube D Diameterottube D tube D Flare tool for Conventional flare tool for R22 Dia 6 35 mm 1 4 Dia 9 52 mm 3 8 0 to 0 5 mm 1 2 mm Dia 12 7 mm 1 2 Dia 15 88 mm 5 8 e Size of flare D D Spacer N gt Flare tool for R410A Conventional flare tool R22 35 e Tubing precautions e Refrigerant 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 7mm thick copper tubing or tubing which is less than 0 8mm in thickness since air conditioners with are subject to higher pressure than those using R22 and R407C e No addition of compressor oil for No additional charge of compressor oil is permitted e No use of refrigerant other than R41
61. he wire about 7 mm See the label 26 near the ter 9 55 1 minal plate OG rasudigine 4 2 Using screwdriver loosen the terminal screw on the terminal plate E D 3 Insert the wire and tighten the terminal screw completely using Fig 25 b For Outdoor Unit For solid core wiring or F cable STRIP 7 ACTU AL 1 Cut the wire end with a cutting pliers then strip the insulation to SIZE FF I expose the solid wire about 25 mm Fig 27 _____ 22 2 Using a screwdriver remove the terminal 5 on the terminal Fig 26 plate 3 Using the pliers bend the solid wire to form a loop suitable for the E terminal screw Loo 4 Shape the loop wire properly place it on the terminal plate and fix it securely with the removed terminal screw using a screwdriver F For stranded wiring 1 Cut the wire end with a cutting pliers then strip the insulation to expose the stranded wiring about 10 mm and tightly twist the wire ends Fig 27 Figs 28 and 29 2 Using a screwdriver remove the terminal screw s on the terminal Stranded wire plate 3 Using ring connector fastener pliers securely clamp each S Ring stripped wire end with a ring connector Fig 28 u F 4 Place the ring connector wire and replace and tighten the removed terminal screw using a screwdriver Fig 30 Special Fig 28 washer Screw lt 4
62. hose for R22 type units be used for R410A type However they must be used exclusively for R410A and never alternately with R22 and R407C e prevent other refrigerants R22 407 from being mistakenly charged to this unit shape and external diameter of the service port screw has been altered External diameter of service port R410A 7 94 mm 5 16 R22 R407C 6 35 mm 1 4 9 4 Tubing Installation Procedures When the tubes are connected always apply HAB oil on the flare portions to improve the sealing of tubing The following is the HAB oil generally used Esso ZERICE S32 Meus For details on tubing installation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 37 9 5 In Case of Compressor Malfunction CAUTION 9 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 9 3 Tools Specifically for R410A 9 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 e Do not reuse 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 Chec
63. igerant tubing that is connected to FII Terminal board service valve B second from Inter unit cables the bottom of the outdoor unit 1 0 T not provided I B A is the indoor unit with refrigerant tubing that is Terminal board connected to service valve Inter unit cables A bottom of the outdoor m 1 0 not provided ithe ID A e Use a dedicated air conditioner circuit for power e To make connections to the outdoor unit remove the inspection panel and tubing panel e Do not bring the inter unit cables or power cable into contact with tubing or service valves e Use outdoor unit cable fasteners and fasten the inter unit cables at the location where the cables are double sheathed e Arrange the wiring so that the inter unit cables are contained in the inspection panel and tubing panel as shown in Fig 31 Indoor unit A Fig 31 17 Hegulations on wire size differ from locality to locality For field wiring requirements please refer to your local electrical codes Make sure that the installation fully complies with all local and national regulations Hemove access panel C and the terminal cover Fig 32 Connect the inter unit wiring and power line according to the drawing on the panel side Be sure to size each wire allowing approx 10 cm longer than the required length for wiring Store excess wiring inside the cabinet When connections are completed check that all connections a
64. ing a hex wrench to open the spindle an for air purging If it is not extremely small amount of refrigerant may leak available use a stop valve for m this purpose Hi knob of This does not indicate a problem the manifold valve must always e Use a hex wrench of a type to which force can be be kept closed easily applied 12 4 With the Lo knob of the manifold open and high pressure valve closed completely run the vacuum pump Run the pump until the pressure is 101 kPa 76 cmHg The operation time for the vacuum pump varies with tubing length and the capacity of the pump The following table shows the amount of time required for evacuation Table 5 Required time for evacuation when capacity of 100 liter h vacuum pump is used 20 min or more The required time in the above table is calculated based on the assumption that the ideal or target vacuum condition is around 10 mmHg abs b With the vacuum pump still running close the Lo knob of the manifold valve Then stop the vacuum pump Fully close the low pressure valve and stop the vacuum pump Wait 1 2 minutes and check that the manifold gauge pointer does not return If it does return find and repair the leak then apply the vacuum again 6 With a hex wrench turn the valve stem on the narrow tube service valve counterclockwise by 90 degrees 1 4 turn for 10 seconds and then turn the stem clockwise to c
65. king 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 25L min and ultimate vacuum pressure rate of 0 05Torr Standard time for evacuation 1 Recover refrigerant OK 2 Replace compressor OK 3 Check for sealing OK 4 Evacuation OK 5 Recharge Length of tubing Less than 10 meters More than 10 meters More than 10 minutes More than 15 minutes 38 b Recharging Configuration and characteristics of cylinders e Be sure to charge the specified amount of lt Valve refrigerant in liquid state using the service port of the wide tube service valve The proper amount is listed on the units 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 Single valve Charge liquid refrigerant with cylinder in up side down position e
66. ling Characteristics Heating Characteristics RH 46 Indoor fan speed High fan RH 85 Indoor fan speed High fan 230V 50Hz 230V 50H2 1 Low pressure performance chart 1 High pressure performance chart IZ a 5 0 SE TE S 122 95 HE VII i 1 0 02 2 0 8 i 2 i 62 5 aH 5 H 0 6 6 9 5 30 35 40 Outdoor air temperature C Outdoor air temperature C 2 Operating current performance chart 2 Operating current performance chart Sal HHH 44 Operating current Operating current A Outdoor air temperature C Outdoor air temperature C 3 Indoor discharge air performance chart 3 Indoor discharge air performance chart 60 1 C ON E gt Indoor discharge air temperature C wW Indoor discharge air temperature Outdoor air temperature C Outdoor air temperature C NOTE This performance chart shows operation of a single wall mounted indoor unit The performance chart will vary depending on the indoor unit type Check each performance value in test run mode Electrical performance values represent a combined indoor outdoor value In this case be sure to stop all the indoor units where performance is not being checked The performance is for a tubing
67. lose it again CAUTION Be sure to completely insert the hex wrench before attempting to turn the valve 7 With a standard screwdriver turn the wide tube service valve stem counterclockwise to fully open the valve 8 Turn the narrow tube service valve stem counterclockwise to fully open the valve 9 Loosen the vacuum hose connected to the wide tube service port slightly to release the pressure Then remove the hose 10 Leak test all joints at the tubing both indoor and outdoors with liquid soap Bubbles indicate a leak Be sure to wipe off the soap with a clean cloth If a CFC gas detector is used use a special detector for HFC refrigerant such as R410A and R134a 11 Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or box wrench Next mount the valve cap and tighten it with a torque wrench the cap needs to be tightened with the torque of 20 N m 200 kgf cm This process is very important to prevent gas from leaking from the system 12 Test run the air conditioner See page 18 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 13 Pump Down In order to protect th
68. ment necessary plug the drain hole with the acces eS sory drain cap mount the accessory drain elbow before installing the drain cap drain p outdoor unit Fig 7 drain elbow 42 25 Fig 7 CAUTION When installing in a cold area where drainage water may I Deburring freeze do not attach the pro vided drain cap or drain elbow Before After to the bottom plate of the unit 3 3 Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units In this method the copper tubes are flared at each end and connected with nuts 3 4 Procedure with a Flare Tool 1 Cut the copper tube to the required length with a tube cutter is recommended to cut approx 30 50 cm longer than the tub Fig 8 ing length you estimate 2 Remove burrs at the end of the copper tube with a tube reamer or file This process is important and should be done carefully to make a good flare Fig 8 Copper NOTE tubing When reaming hold the tube end downward and be sure that no copper scraps fall into the tube Fig 9 3 Remove the flare nut from the unit and be sure to mount it on the copper tube 4 Make a flare at the end of copper tube with a flare tool Figs 10 and 11 RIDGID or equivalent A good flare should have the
69. n table s included in the outdoor 3 6 Tubing Connections unit package 3 7 Insulation of Refrigerant Tubing Connecting any other model may result in 3 8 Taping the Tubes operation failure and malfunction 3 9 Finishing the Installation Be sure to read the yellow instruction sheet 4 AIR 2 B Air Purging with a Vacuum Pump for Test Run new refrigerant R410A Pump Down Combination example 5 WIRING INSTRUCTIONS 15 Indoor unit B 5 1 General Precautions on Wiring ES 5 2 Recommended Wire Length and Diameter 5 3 Wiring System Diagram 5 4 How to Connect Wiring to the Terminal B 5 5 Wiring Instructions for the Outdoor Unit c D gt 6 TEST RUN uu u uuu sacs 18 7 CONNECTING HOME AUTOMATION T s juel 19 gt 8 INSTALLATION CHECK SHEET 19 lt 9 ELECTRIC WIRING DIAGRAM 19 The illustrations are based on the typical appearance of a standard model Consequently the shape may differ from that of the air conditioner that you are installing 85264190480001 SANYO 2009 SANYO Electric Co Ltd Osaka Japan wW IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and oper ating standards As the installer or servi
70. nction NOTE The specifications of SAP KRV96EHDSA are the same as those of SAP KRV96EHDS described in the Unit Combination Tables A 2 Save this Combination Table Please be sure to hand over this sheet to the user S V YO 5 Room Outdoor Unit Combination Table SAP CMRV3656EH lt Combinations of Connectable Indoor Units gt The combinations of the indoor units listed in Table 1 a on page 2 Table 1 b on page 3 and Table 1 c on page 4 are combinations solely of those units which can be operated concurrently In addition to the combinations listed in the table other combinations of indoor units are possible provided that the following conditions are satisfied Conditions 1 Atleast two or more indoor units must be connected to the multi outdoor unit It is not acceptable for only one indoor unit to be connected 2 The total rated cooling capacity of the indoor units to be connected must be less than or equal to 200 of the rated cooling capacity of the outdoor unit CAUTION In this case all the indoor units installed must not be operated concurrently under any N circumstances Otherwise the air conditioner may not run properly and trouble may occur Example When five indoor units are connected If the following holds true Rated cooling capacity of SAP CMRV3656EH outdoor unit C210 kW e Rated cooling capacity of indoor units K1 K2 KW Then C x 2 200 gt K1 K2 10 x 2 gt 2 2 2
71. nterior 9 BLK Indoor Unit b n Unidad interior Appareil int rieur CONNECTOR _ Innenraumgerat O PNK s Unit Interna YEL m 818 lt 9 9 LINN OL 3 3 DCM 4P WHT 3 6P BLU 5 19 8FA 2 5257 72600 1 SAP KRV184 244EH EVAPORATOR T TERMINAL BASE BLK 2 2 WHT RED RED PNK BLU BRN YEL 5P WHT 10P WHT ASSY FLAP MOTOR ROOM THERMISTOR BLK w RED BLK BLK WHT BLK YEL COIL THERMISTOR BLU FAN MOTOR m GRN YEL JEM A 4P WHT ON P 8FA 2 5257 68200 0 Fig 33b SAP KRV186 246EH EVAPORATOR TERMINAL BASE BLK FES 48 i WHT dQ 2 RED Saa 1 o CONNECTOR WHT RED BLK _ BLK BLU BLK 14 4 BRN BLK YEL BLK ae m BLK 7 7 FLAP MOTOR e s BLK 9 9 BLK CONTROLLER RED UV ASSY BLK WHT ROOM THERMISTOR YEL BLK Qw3 BLU BLK FAN MOTOR ORG ORG THERMISTOR RED BLK 8FA 2 5250 27700 1 Fig 33d 20
72. o stabilize the return of oil to the compressor If the indoor and outdoor temperatures are high the current peak cut off activates stopping any increases in frequency Operating frequency is stabilized in order to maintain a comfortable environment The outdoor unit stops It does not stop if the thermostat for another indoor unit is ON Approximately 30 seconds after the thermostat turns OFF the indoor fan is stopped The outdoor unit starts automatically after 5 minutes During these 5 minutes a low pressure pressure balance is achieved allowing the compressor to start more easily The amount of heat pump exceeds the amount of heat radiation from the room Therefore there is no need to further increase the compressor capacity and the frequency is stabilized or lowered The unit operated before and the temperature of the indoor heat exchanger is relatively warm Therefore the fan speed may start at the set fan speed at the same time that the thermostat turns ON mM Control conditions Unit operation Explanation HEAT When defrost operation Non stop defrost begins frost has formed on the outdoor unit when the ambient air Indoor fan Stopped temperature is low Outdoor fan Stopped Defrost operation begins based on outdoor heat exchanger temperature and outdoor air temperature conditions Non stop defrost Refer to Fig 1 1 After HEAT operation begins the temperature Compressor 70 Hz of t
73. oor fan OFF Non stop defrosting of the outdoor heat exchanger is at or above the temperature shown in the table below Defrost operation has continued for 12 minutes max length Releasing of defrosting Temperature of releasing Defrost operation time Less than 2 minutes Heat exchanger temperature for releasing defrosting No releasing 14 C or higher 1 1 The temperature for releasing of defrosting is 20 C or higher when the outdoor air temperature is less than 0 C Defrost does not occur during HIGH POWER operation If other stopped indoor units are started during defrost operation they begin operating in defrost mode 2 Clean defrost If all indoor units are stopped during HEAT operation and frost is detected at the L1 line and the conditions for defrost are met then defrost operation occurs and the unit stops after defrost is completed 22 7 2 2 Current Control The operating current may rise as a result of causes including increasing heating or cooling loads or decreases in power voltage In these cases the operating frequency is automatically reduced or operation is stopped in order to control the operating current so that it is 19 5 A or less Power breakers and fuses will not be tripped Operation can continue during this period with somewhat reduced heating or cooling capacity Operation at normal capacity is restored wh
74. oving 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 CAUTION Others 0009090990009909000099990900090990900009990009090999000090999000099000090999900090909000099000099990000909090090099000099990009999099099999 Ventilate any enclosed areas when installing or testing the refrigeration system Escaped refrigerant gas on contact with fire or heat can produce dangerously toxic gas Confirm upon completing installation that no refrigerant gas is leaking If escaped gas comes in contact with a stove gas water heater electric room heater or other heat source it can produce dangerously toxic gas Do not install only a single indoor unit 1 General This booklet briefly outlines where and how to install 5 Carpenter s level the air conditioning system Please read over the 6 Sabre saw or key hole saw entire set of instructions for the indoor and outdoor 7 Hacksaw units and make sure all accessory parts listed are with 8 Core bits the system before beginning If the electric wiring dia 9 Hammer gram does not appear in this manual please check for 10 Drill the diagram on the indoor unit 11 Tube cutter 12 Tube flaring tool 1 1 Tools Required for Installation not supplied 13 Torque wrench 1 Standard screwdriver 14 Adjustable wrench 2 Phillips head screwdriver 15 Reamer for deburring 3 Knife or wir
75. r and outdoor temperatures are high the current peak cut off activates stopping any increases in frequency The room temperature The indoor temperature and the desired Operating frequency is stabilized in order to has reached the temperature are approximately equal maintain a comfortable environment desired temperature The thermostat turns The outdoor unit stops It does not stop if the OFF thermostart for another indoor unit is ON The thermostat turns After the thermostat turns ON again the ON again outdoor unit will not operate for 5 minutes even if the room temperature increases above the desired temperature After 5 minutes the outdoor unit begins operating automatically During these 5 minutes a pressure balance is achieved allowing the compressor to start more easily Freeze prevention When the temperature of the indoor heat exchanger drops to approximately 2 C or below the compressor turns OFF the outdoor fan turns OFF and the indoor fan continues operating with no changes V Approximately 5 minutes later if the temperature of the indoor heat exchanger is adove 8 C the system returns to its original conditions Stop All indicator lamps turn OFF The indoor and outdoor units stop Operation is restarted Starts operating in the same operating mode Within 4 hours after operation was stopped it is within 4 hours only when COOL and with the same temperature assumed that there has been no si
76. re correct as shown in the wiring 7 o system diagram on panel side Terminal cover b Be sure to ground the unit according to your local codes 224 Access panel C 6 Test Run Fig 32 Performing a test run e Refer to the test run procedures in the indoor unit installation manual e Perform the test run separately for each connected indoor unit If 2 units are operated simultaneously it is not possible to correctly check for errors in tubing and wiring e If the room temperature is 15 C or below it may not be possible to check for tubing errors with cooling operation If this occurs perform heating operation for each unit individually and check that warm air is dis charged from each unit If there is cold air mixed in with the warm air check the tubing connections again Checking tubing and wiring Perform the test run and check that operation is normal If there is an error in tubing or wiring the refrigerant may flow to indoor unit B when indoor unit A is operated for example CAUTION e Stop operation immediately if there is an error in tubing or wiring Turn the power leakage breaker fuse link OFF and check whether the inter unit cables are con nected incorrectly or whether the narrow tubes A and B are connected in reverse Correct the connections e If there is an error in tubing pump down must be performed Be sure to perform pump down After making corrections again purge the air from the t
77. 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 e Use the detector for to locate refrigerant leak points 2 Recovering refrigerant e Never release the gas to the atmosphere recover residual refrigerant using the refrigerant recovery unit for instead e Do not reuse the recovered refrigerant because its composition will have been altered 3 Welding leaking points e Confirm again that no residual refrigerant exists in the unit before starting welding e Weld securely using flux and wax for R410A e 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 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 25L min and ultimate vacuum pressure rate of 0 05Torr
78. rical 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 heating at connection points and a possible fire hazard Install a protective leakage breaker fuse link depend ing on the installation location especially a damp or humid location If a leakage breaker fuse link is not installed electric shock can occur 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 fin gers When Installing 0 09000009000000900000909000000900000090000000900000009000000900000000000000900000090000000900000090000009000000090000009000009099 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 Room Properly insulate any
79. round the unit following local electrical codes Connect all wiring tightly Loose wiring may cause overheating at connection points and a possible fire hazard Install a protective leakage breaker depending on the installation location especially a damp or humid location If a leakage breaker is not installed electric shock can occur 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 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 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
80. s those of SAP KRV96EHDS described in the Installation Instruction A 1 For Outdoor Unit SANYO INSTALLATION INSTRUCTIONS Inverter Multi Split System Air Conditioner Model This air conditioner uses the new refrigerant Contents Model Combinations Page Combine indoor and outdoor units only as listed below ndi sou Starting 2 Indoor Unit Outdoor Unit SAP KMRV74EH SAP CMRV3656EH 1 GENERAL 3 1 1 Tools Required for Installation not supplied 1 2 Accessories Supplied with Unit SAP KMRV76EH 1 3 Optional Copper Tubing Kit SAP KMRV96EH 1 4 Type of Copper Tube and Insulation Material SAP KMRV126EH 1 5 Additional Materials Required for Installation SAP KRV96EHDS SAP KRV126EHDS 2 INSTALLATION SITE SELECTION 4 SAP KRV184EH 2 1 Indoor Unit SAP KRV244EH 2 2 Connecting Indoor Units SAP KRV186EH 2 3 Outdoor Unit SAP KRV246EH 2 4 Outer Dimensions of Outdoor Unit 2 5 Diagram of Outdoor Unit Installation Power Source 50 Hz single phase 220 240 VAC 3 INSTALLATION PROCESS 10 3 1 Embedding the Tubing and Wiring 3 2 Drain Cap and Drain Elbow 3 3 Use of the Flaring Method Be sure to connect indoor and outdoor units 3 4 Flaring Procedure with a Flare Tool only in combinations that are listed in the 3 5 Caution Before Connecting Tubes Tightly combinatio
81. section does not change when the circuit is charged 2 to 3 times with refrigerant gas 0 44 lbs each time or if the change is small then the problem may not be refrigerant shortage The problem may be a blockage of the refrigerant circuit 1 Check that there is no internal leakage inside the 4 way valve At the low pressure side tubing check that there is no temperature difference between the intake and discharge of the 4 way valve 2 Check that the electric expansion valve is not blocked Check as described on the preceding page 33 8 5 Trouble Diagnosis of Fan Motor e This outdoor DC fan motor contains an internal control Therefore it is not possible to measure the coil resistance and the following procedure should be used to check the motor e Perform the trouble diagnosis by Test Run mode described on Installation Instructions of indoor unit 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
82. sor is securely contained in the thermostat holder 7 Electric expansion valve e When replacing the electric expansion valve and coil be sure to attach the connectors in the correct positions Labels are applied to the valve body and coil corresponding to the connector colors to identify them Use a multi meter to measure the voltage 12 V When the power is turned ON the needle will move in the following seguence in approximately 10 to 20 seconds for each point Model No MV A MV B SAP CMRV3656EH Controller check No voltage on circuit board Voltage varies Check the illumination Check the coil resistance Approx 46 4 ohm Check the resistance between the gray lead wire and the other wires Resistance is OK if it is 46 4ohm at 20 C of the red Power Lamp Replace the controller Replace the coil Cool the main unit with a damp cloth or other means while welding When applying vacuum use the Use the special service magnet and rotate 5 revolutions clockwise to fully close the valve Then start the unit and measure the temperature at the inlet and outlet Temperature changes tubes of the electric expansion valve If the temperature difference is large the valve is closed Then rotate 5 revolutions This part is normal counterclockwise to open the valve Check elsewhere gt Operation is normal if the temperature difference
83. t heat loss and wet floors due to dripping of R condensation both tubes must be well insulated with a Thickness Thickness proper insulation material The thickness of the insulation Min 8 mm Min 8 mm should be a min 8 mm After a tube has been insulated NAON INDE Wide tube never try to bend it into a narrow curve because it can cause the tube to break or crack 11 5 PERFORMANCE DATA 5 1 Temperature Charts Outdoor Unit SAP CMRV3656EH Indoor Unit SAP KMRV76EH x 1 Cooling Characteristics H Heating Characteristics RH 46 Indoor fan speed High fan RH 85 Indoor fan speed High fan 230V 50 2 230V 50 2 1 Low pressure performance chart 1 High pressure performance chart MPaG kgf cm G MPaG kgf cm G Low pressure at wide tube service valve High pressure at wide tube service valve L 7 Outdoor air temperature C Outdoor air temperature C 2 Operating current performance chart 2 Operating current performance chart s LLL E HE LU ELE TNM m s L du HITT 5 0 5 10 15 20 25 Outdoor air temperature C Outdoor air temperature C 3 Indoor discharge air performance chart 3 Indoor discharge air performance chart 55 1 Q ee aN AB
84. 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 pre vents 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 a Snowy Area Position the outdoor unit in a protected location where snow will not blow into it Install the outdoor unit on a raised platform that is higher than drifting snow Provide snow vents When Connecting Refrigerant Tubing 0900000090000090000099090000099000000900000000000000000000090000000000000099000000900000900090000009090000009000000090000000900009099099 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 con nection Check carefully for leaks before starting the test run When Servicing 9090909009090990009909900099099909000999909009099000909099900090990990000909000099990009909090090099090900909999000990990900990990090909999090999990990999 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 m
85. ubes 18 7 Connecting a Home Automation Device The white terminal is located on the indoor unit If a HA device will be used connect it to this terminal Also refer to Section 9 Electric Wiring Diagram in the outdoor unit installation manual 8 Installation Check Sheet The strength of the installation location is sufficient to support the air conditioner weight The indoor and outdoor units are installed level and vertically The power and voltage are as specified Inter unit cables are securely fastened to the terminal board Inter unit cables are securely fixed The power cable and inter unit cables are not connected anywhere along their paths The ground wire is securely connected An air purge of the refrigerant circuit has been conducted A leak test of the tubing connections has been performed Thermal insulation has been applied to the tubing connections Drain connections are secure and water drains properly Putty has been used to close the hole in the wall All service valves are fully open Remote controller signals are being positively received 9 Electric Wiring Diagram Diagrama de cableado el ctrico Diagramme de c blage lectrique Elektrisches Schaltbild Diagramma dei circuiti elettrici SAP KMRV74 94 124EH Diagrama da el trica EVAPORATOR Unidade i
86. ure Narrow tube Sensor for branch pipe D failure Narrow tube Sensor for branch pipe E failure Narrow tube Sensor for branch pipe A failure Wide tube Sensor for branch pipe B failure 1 Sensor open circuit or short circuit m 2 Contact failure at connector or open circuit at terminal Wide tube ne crimping location Sensor for branch pipe C failure Wide tube Sensor for branch pipe D failure Wide tube Sensor for branch pipe E failure Wide tube Sensor for compressor discharge temp failure Sensor for heat exchanger temp failure Sensor for outdoor air temp failure HIC or power Tr failure 2 Outdoor fan does not turn Instantaneous power outage 4 Service valve not opened Outdoor fan failure 6 Continuous overload operation Compressor failure 8 HIC board failure Actuation of freeze protection 1 Sensor failure 2 Failure of electronic expansion valve function 3 Improper tubing connection 4 Control PCBoard failure Actuation of compressor over load 1 Valve closure 2 Failure of electronic expansion valve relay 3 OLR lead wire breaking 4 Control PCBoard failure Electrical current sensor failure 1 Control PCBoard or Noise Filter PCBoard failure External ROM OTP data failure 1 External ROM data failure 2 Control PCBoard failure Peak current cut off 1 Operating current is 23A or higher P 1 PAM circuit abnormal voltage TRE 2 Protection for current 3 HIC Board
87. 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 1 Vm Gnd Between pin 1 and pin 3 of CN30 DC 280V 10 2 Vcc Gnd Between pin 1 of CN31 and pin3 CN30 DC 15V 1096 3 Vs Gnd Between pin of CN31 and pin3 CN30 Fluctuation between DC 1 8V to 5 7V 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 Pin 1 Vm red CN30 Pin 2 2 used Pin 3 ER Pin3 Gnd blue Pin 1 Vcc brown CN31 Pin 2 Pin 2 PG white Pin 2 PG white Pin 3 Vsp orange Vsp Pin 3 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 troubl
88. x Screw and m p Pa s special washer Twist wire ends 7 Terminal plate x Ring gt z connector E gt Wire Pigeon Fig 29 16 5 5 Wiring Instructions for the Outdoor Unit e Be sure to correctly align inter unit cables A B C D and E Outdoor unit Terminal board Power Single phase 1 50Hz 9 J Leakage breaker fuse link Indoor unit E ij not provided E is the indoor unit with G d refrigerant tubing that is nnn Terminal board E Groun connected to service valve Power cable not provided Inter unit cables 1 0 not provided 3 5 mm Less than 26 m B r rform grounding Indoor unit D pe n nin ding e Attach a ground wire to either the D is the indoor unit with refrigerant tubing that is connected to Terminal board outdoor unit or indoor unit service valve D fourth from the bottom of the outdoor unit e If there is a grounding terminal IK D inside the room use the grounding screw inside the indoor unit Indoor unit C C is the ind it with ref t on 11 2 up cm Terminal board e Be sure to apply the provided labels to both i Ive C third f he 123 i dire 42 eror ends of the inter unit cables to prevent mis Label C wiring The units will not function if the wiring a connections are incorrect Indoor unit B B is the indoor unit with refr
89. y cooled High on a wall is best 5 e select a location that will hold the weight of the unit UNIT 4 select a location where tubing and drain hose have the Fig 3a shortest run to the outside Fig 1 e allow 090 operation and L sS as well as CAUTION unrestricted air flow around the unit Fig 2 MEME Indoor unit Wall E a install the unit within the maximum elevation STENGE For stable operation of the air H1 H2 H3 H4 H5 above below the outdoor unit and Va conditioner do not install wall mounted type indoor units less than 1 5 m from from floor level floor level 15 m within a total tubing length L1 L2 L3 L4 L5 from the outdoor unit as detailed in Table 3 and Fig 3a Floor level Fig 3b e install the indoor unit more than 1 meter away from any antenna or power lines or connecting wires used for television radio telephone security system or intercom Electrical noise from any of these sources may affect operation e install in a sturdy manner to avoid increased operating noise Table 3 Max Allowable Max Allowable Total Limit of Limit of Elevation Required Amount Tubing Length Tubing Length Total Tubing Length Difference of Additional Model per unit at shipment L1 L2 L3 L4 L5 H1 H2 H3 H4 H5 Refrigerant m L1 L2 L3 L4 L5 m m g m m CMRV3656 30 45 L1 L2 L3 L4 L5 80 L1 L2 L3 L4 L5 15 20

TECHNICAL & SERVICE MANUAL DC INVERTER

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TECHNICAL &amp; SERVICE MANUAL DC INVERTER

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TECHNICAL & SERVICE MANUAL DC INVERTER