Mitsubishi Heavy Industries SRK63ZR-S, Technical Manual

Page 1: ...TECHNICAL MANUAL ANUAL O g s32 4 INVERTER WALL MOUNTED TYPE RESIDENTIAL AIR CONDITIONERS 3PLIT SYSTEM AIR TO AIR HEAT PUMP TYPE 32 2 3 2 3 2 3 ...

Page 2: ...peration control function by wireless remote control 8 Flap and louver control 37 5 Selection of the annual cooling function 36 4 Installing two air conditioners in the same room 35 3 Auto restart function 2 Unit ON OFF button 35 34 11 Silent mode 39 13 Installation location setting 40 12 Night setback 39 14 Outline of heating operation 40 17 Outline of automatic operation 43 16 Outline of dry deh...

Page 3: ...ct capacity Cooling capacity 6 3kW Model name SRK Wall mounted type SRC Outdoor unit R S 72 11 OPTION PARTS 84 12 TECHNICAL INFORMATION 72 78 1 Wired remote control RC E5 2 Interface kit SC BIKN E 3 Superlink E board SC ADNA E 82 6 Service mode Trouble mode access function 54 7 Inspection procedures corresponding to detail of trouble 62 52 4 Troubleshooting procedure If the air conditioner runs 3 ...

Page 4: ... t i t n a u Q y t i l a u Q r e t l i f r i A r o t o m n a f r o f e v e e l s r e b b u R r e b r o s b a n o i t a r b i v k c o h S Rubber sleeve for fan motor compressor r e t a e h c i r t c e l E l o r t n o c e t o m e r s s e l e r i W l o r t n o c e t o m e R t a t s o m r e h t r e t u p m o c o r c i M l o r t n o c e r u t a r e p m e t m o o R Operation display RUN Green TIMER Yell...

Page 5: ... u Q y t i l a u Q r e t l i f r i A r o t o m n a f r o f e v e e l s r e b b u R r e b r o s b a n o i t a r b i v k c o h S Rubber sleeve for fan motor compressor r e t a e h c i r t c e l E l o r t n o c e t o m e r s s e l e r i W l o r t n o c e t o m e R t a t s o m r e h t r e t u p m o c o r c i M l o r t n o c e r u t a r e p m e t m o o R Operation display RUN Green TIMER Yellow HI POWE...

Page 6: ...o P y t i t n a u Q y t i l a u Q r e t l i f r i A r o t o m n a f r o f e v e e l s r e b b u R r e b r o s b a n o i t a r b i v k c o h S Rubber sleeve for fan motor compressor r e t a e h c i r t c e l E l o r t n o c e t o m e r s s e l e r i W l o r t n o c e t o m e R t a t s o m r e h t r e t u p m o c o r c i M l o r t n o c e r u t a r e p m e t m o o R Operation display RUN Green TIMER...

Page 7: ...93 Content 䃥65 Outlet for piping on both side G SRK63 䃥 Flare Wireless remote control 65 䃥 5 Flare Wired remote control Option 䃥 Flare Service space Unit Space for installation and service when viewing from the front 3 55 53 55 Service space Service space Service space 65 55 Installation plate Unit mm Note The model name label is attached RQ WKH XQGHUVLGH RI WKH LQGRRU XQLW Outlet for down piping ...

Page 8: ...The height of a wall is 1200mm or less Service panel Slot hole Notes 1 It must not be surrounded by walls on four sides 2 The unit must be fixed with anchor bolts An anchor bolt must not protrude more than 15mm 3 Where the unit is subjected to strong winds lay it in such a direction that the blower outlet face is perpendicular to the dominant wind direction 4 Leave 1m or more space above the unit ...

Page 9: ...pendicular to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed the unit s height 6 The model name label is attached on the rear panel Air intake Air intake Air outlet Service space for electrical parts Symbol Content A Service valve connection gas side φ15 88 5 8 Flare B Service valve connection liquid side φ6 35 1 4 Flare C...

Page 10: ...pendicular to the dominant wind direction 4 Leave 1m or more space above the unit 5 A wall in front of the blower outlet must not exceed the unit s height 6 The model name label is attached on the rear panel Air intake Air intake Air outlet Service space for electrical parts Symbol Content A Service valve connection gas side φ15 88 5 8 Flare B Service valve connection liquid side φ6 35 1 4 Flare C...

Page 11: ... 10 15 SRK T 175 3 Remote control a Wireless remote control Unit mm 60 26 167 ...

Page 12: ...100 to 200m 0 5mm2 2 cores 0 75mm2 2 cores 1 25mm2 2 cores 2 0mm2 2 cores Under 300m Under 400m Under 600m Upper part Lower part Lower case Sheath Upper cace Board Wiring Upper Lower X Y Sheath Upper cace Board Wiring Upper Lower Y X Tighten the screws after cutting off the thin part of screw mounting part Embedded mounting Pearl White Exterior appearance Munsell color N8 5 near equivalent The pee...

Page 13: ...EXCHANGER BOARD CIRCUIT PRINTED SM1 LM1 CNX M M M 5 5 LM2 RD WH RD WH BK BL Y Y G BK CNG CNE DISPLAY WIRELESS RECEIVER CNF BACK UP SW 2 8 Th21 Th22 Th1 Th3 CNY Y G CNM 5 Color Marks Blue Black BK Red BL RD White WH Yellow Green Y G Yellow Y Color Mark Heat exchanger sensor Humidity sensor Fan motor Room temp sensor Flap motor Th1 Th21 2 Th3 Diode stack DS Fuse F Connector CNE FMI Terminal block TB...

Page 14: ...4 2 5 SRC71ZR S SRC80ZR S 14 5 17 0 17 0 15 15 1 5mm2 x 4 2 0 2 5 2 5 M BK WH RD V W U PCB ASSY PCB1 M MS TRANSISTOR POWER POWER T 1A L 250V CM FMo W V U P N CNTH CNEEV CNFAN 3 S IN R IN G1 N L 250V 20A F4 2 N Y G C 2 RD CN20S BK WH WH WH F 3 15A L 250V F1 BK 1 3 BK WH Y G Y G RD G2 20S Y G BK SWITCHING CIRCUIT 250V 20A F8 CIRCUIT PAM CIRCUIT PAM Y BL T1 T11 T2 T12 Y BL F3 L1 L2 EEV TH1 TH2 TH3 TE...

Page 15: ...ng 54 dB A Heating 54 dB A Cooling Heating Mike position at highest noise level in position as mentioned below Distance from front side 1m Mike position 0 8m 1m Unit Mike position Center Low points Sound Pressure Level dB Standard 2 10 5 Pa 1000 2000 4000 8000 1000 2000 4000 8000 10 20 30 40 50 60 70 63 125 250 500 Mid Octave Band Frequency Hz 10 20 30 40 50 60 70 63 125 250 500 Mid Octave Band Fr...

Page 16: ...5QWPF 2TGUUWTG GXGN F 5VCPFCTF 2C KF 1EVCXG CPF TGSWGPE 0 0 0 0 0 0 0 0 0 0 0 0 Cooling Heating Mike position at highest noise level in position as mentioned below Distance from front side 1m Mike position 0 8m 1m Unit Mike position Center Low points Mike position at highest noise level in position as mentioned below Distance from front side 1m Mike position 0 8m 1m Unit Mike position Center Low p...

Page 17: ...ioned below Distance from front side 1m Mike position 0 8m 1m Unit Mike position Center Low points Mike position at highest noise level in position as mentioned below Distance from front side 1m Mike position 0 8m 1m Unit Mike position Center Low points 5QWPF 2TGUUWTG GXGN F 5QWPF 2TGUUWTG GXGN F 5VCPFCTF 5VCPFCTF 2C 2C KF 1EVCXG CPF TGSWGPE KF 1EVCXG CPF TGSWGPE 0 0 0 0 0 0 0 0 0 0 0 0 Model SRK8...

Page 18: ...or TH1 EEV Heat exchanger Room temp sensor Th1 Heat exchanger sensor Th21 Accumulator 5 PIPING SYSTEM Model SRK63ZR S Indoor unit Outdoor unit Flare connection Flare connection Liquid pipe 䃥6 35 Gas pipe 䃥15 88 Service valve Heat exchanger Electronic expansion valve Liquid Strainer Muffler Capillary tube Outdoor air temp sensor Muffler Compressor Discharge pipe temp sensor Cooling cycle Heating cy...

Page 19: ...Liquid Strainer Muffler Capillary tube Outdoor air temp sensor Muffler Compressor Discharge pipe temp sensor Cooling cycle Heating cycle Check joint 4way valve Service valve Heat exchanger sensor Th22 TH3 Humidity sensor Th3 Gas TH2 Heat exchanger sensor TH1 EEV Heat exchanger Heat exchanger Room temp sensor Th1 Heat exchanger sensor Th21 Accumulator Model SRK80ZR S ...

Page 20: ...ion factors as follows 0 6 0 7 0 8 0 9 1 0 1 2 1 1 1 3 0 5 10 15 24 26 20 25 30 35 40 46 10 15 20 25 27 Outdoor air W B temperature C W B 15 10 5 0 5 10 15 Cooling operation Outdoor air D B temperature C D B Coefficient of cooling Heating capacity in relation to temperature Heating operation Indoor air D B temperature C D B ISO T1 Standard Condition 1 Coefficient of cooling and heating capacity in...

Page 21: ...outdoor heat exchanger during heating How to obtain the cooling and heating capacity ѳ Piping length m Cooling Heating 7 1 0 1 0 10 0 99 1 0 15 0 975 1 0 20 0 965 1 0 25 0 95 1 0 30 0 935 1 0 Air inlet temperature of outdoor unit in CWB Adjustment coefficient 15 0 95 0 95 0 94 0 93 0 91 0 88 0 86 0 87 0 92 1 00 10 9 7 5 3 1 1 3 5 or more SRK63ZR S 6 3 SRK63ZR S 6 2k ...

Page 22: ...54 6 76 5 49 7 26 5 85 7 50 5 83 7 66 5 77 8 07 6 06 8 38 5 92 32 6 18 5 44 6 57 5 40 7 10 5 79 7 34 5 77 7 51 5 71 7 92 6 01 8 25 5 88 34 5 99 5 35 6 38 5 31 6 93 5 72 7 18 5 70 7 35 5 65 7 78 5 96 8 11 5 84 36 5 80 5 26 6 18 5 23 6 75 5 65 7 02 5 64 7 19 5 59 7 63 5 91 7 96 5 79 38 5 60 5 17 5 98 5 14 6 58 5 57 6 85 5 58 7 02 5 53 7 48 5 86 7 81 5 75 39 5 50 5 13 5 88 5 10 6 48 5 53 6 76 5 54 6 ...

Page 23: ...ins nails and wood And to avoid danger of suffocation be sure to keep the plastic wrapper away from children and to dispose after tear it up For installation work be careful not to get injured with the heat exchanger piping flare portion or screws etc Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation whic...

Page 24: ...k and national wiring regulation and the system must be connected to the dedicated circuit Power source with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire Be sure to shut off the power before starting electrical work Failure to shut off the power can cause electric shocks unit failure or incorrect function of equipment Be sure to use the cabl...

Page 25: ...aration Do not turn Press Remove A Dimension A CAUTION Do not apply refrigerating machine oil to the flared surface Indoor CAUTION Do not apply excess torque to the flared nuts Otherwise the flared nuts may crack Connect the pipes on both liquid and gas sides Tighten the nuts to the following torque n o i t r o p n o i t c e n n o c e h t f o n o i t a l u s n I n o i t c e n n o C Indoor Do not t...

Page 26: ... outer tape and shape the piping to match with the contours of the route that piping will take Also fix the wiring and pipings to the wall with clamps Copper pipe diameter Use a flare tool designed for R410A or a conventional flare tool Note that measurement B protrusion from the flaring block will vary depending on the type of a flare tool in use If a conventional flare tool is used use a copper ...

Page 27: ... in the event of installation inspection or servicing If the power source is not shut off there is a risk of electric shocks unit failure or personal injury due to the unexpected start of fan Stop the compressor before removing the pipe after shutting the service valve on pump down work If the pipe is removed when the compressor is in operation with the service valve open air would be mixed in the...

Page 28: ...up Be sure to insulate the refrigerant pipes so as not to condense the ambient air moisture on them Insufficient insulation can cause condensation which can lead to moisture damage on the ceiling floor furniture and any other valuables When perform the air conditioner operation cooling or dehumidifying operation in which ventilator is installed in the room In this case using the air conditioner in...

Page 29: ...MPa Hand Relief valve Nitrogen gas Without nitrogen gas a large quantity of foreign matters oxidized film are created causing a critical failure from capillary tube or expansion valve clogging Brazing must be performed under a nitrogen gas flow Pipe brazing 4 Caution about selection of installation location Walls surrounding the unit in the four sides are not acceptable There must be a 1 meter or ...

Page 30: ...hough outdoor and indoor units themselves have been tested for air tightness at the factory check the connecting pipes after the installation work for air tightness from the service valve s check joint equipped on the outdoor unit side While conducting a test keep the service valve shut all the time a Raise the pressure to 0 5MPa and then stop Leave it for five minutes to see if the pressure drops...

Page 31: ... in a water leak or dripping causing damage to household effects etc 2 Use a heat insulating material that can withstand 120 or a higher temperature Poor heat insulating capacity can cause heat insulation problems or cable deterioration All gas pipes must be securely heat insulated in order to prevent damage from dripping water that comes from the condensation formed on them during a cooling opera...

Page 32: ...er may flow out from vicinity of service valve or connected pipes Where you are likely to have several days of sub zero temperatures in a row do not use a drain elbow and drain grommets There is a risk of drain water freezing inside and blocking the drain When condensed water needs to be led to a drain etc install the unit on a flat base supplied separately as a locally procured part or concrete b...

Page 33: ...or less 2 The pipe size conforms to the table of pipe size restrictions 3 The elevation difference between the indoor and outdoor units conforms to the following restrictions Where the outdoor unit is above 20m or less Where the outdoor unit is below 20m or less Which of the following refrigeration oils does the existing unit use Suniso MS Barrel Freeze HAB Freol ether oil ester oil Make an inquir...

Page 34: ...unit for 3 minutes for a cooling operation returning liquid 3 Close the liquid side service valve of the outdoor unit and pump down refrigerant recovery 4 Blow with nitrogen gas If discolored refrigeration oil or any foreign matters is discharged by the blow wash the pipe system or install a new pipe system For the flare nut do not use the old one but use the one supplied with the outdoor unit Pro...

Page 35: ...witch for resetting microcomputer This button sets WEEKLY TIMER This button changes the HIGH POWER ECONOMY operation This button changes the air flow left right direction This buttion changes the SILENT operation This button selects OFF TIMER operation This button switches the WEEKLY TIMER to ON OFF Each time the button is pressed the fan speed changes This button sets 3D AUTO operation This butto...

Page 36: ... the cover b ޓ Setting an indoor unit i Turn off the power source and turn it on after 1 minute ii Point the wireless remote control that was set according to the procedure described on the left side at the indoor unit and send a signal by pressing the ACL switch on the wireless remote control Since the signal is sent in about 6 seconds after theACL switch is pressed point the wireless remote cont...

Page 37: ...on HIGH POWER operation will start from the set time d When the following operation are set HIGH POWER operation will be canceled When the HI POWER ECONO button is pressed again When the operation mode is changed When it has been 15 minutes since HIGH POWER operation has started When the 3D AUTO botton is pressed When the SILENT botton is pressed When the NIGHT SETBACK botton is pressed e Not oper...

Page 38: ...d Louver stopped Swing When the operation is retrieved from CLEAN or ALLERGEN CLEAR operation b When the following operation are set ECONOMY operation will be canceled When the HI POWER ECONO button is pressed again When the operation mode is changed DRY to FAN c Not operable while the air conditioner is OFF d The setting temperature is adjusted according to the following table at the start of ope...

Page 39: ...ting i ii Cooling Air flow selection Operation mode AUTO Heating Indoor temp Setting temp 5 C Indoor temp Setting temp 5 C Setting temp Indoor temp 5 C Setting temp Indoor temp 5 C HIGH POWER AUTO HI HI MED MED ULO ULO LO LO HIGH POWER AUTO Flap Louver Cooling Up down swing Heating Wide Fixed Center Fixed Flap Louver Cooling Heating Left right swing Horizontal blowing Fixed Slant forwardl blowing ...

Page 40: ...ation a Comfortable timer setting ON timer c OFF timer operation 13 Installation location setting a Setting i If the air conditioning unit is running press the ON OFF button to stop ii Press the AIR FLOW U D UP DOWN button and the AIR FLOW L R LEFT RIGHT button together for 5 seconds or more iii Setting the air conditioning installation location Center installation L R L R Right end installation L...

Page 41: ...onal components in heating mode b Details of control at each operation mode pattern Fuzzy operation i ON OFF ON ON ON OFF few minutes ON ON ON HOT KEEP OFF OFF 3 minutes ON OFF OFF Thermostat ON Thermostat OFF Failure Heating Compressor Indoor fan motor Outdoor fan motor 4 way valve 20 120rps 20 120rps 20 120rps 20 86rps SRK80ZR S 20 116rps 20 116rps 20 116rps 20 78rps SRK71ZR S 12 120rps 12 120rp...

Page 42: ...ation ON OFF ON ON ON OFF few minutes ON ON ON HOT KEEP OFF OFF 3 minutes ON OFF OFF Compressor Indoor fan motor Outdoor fan motor 4 way valve 20 120rps 20 120rps 20 120rps 20 86rps SRK80ZR S 20 116rps 20 116rps 20 116rps 20 78rps SRK71ZR S 12 120rps 12 120rps 12 120rps 12 94rps SRK63ZR S Model Fan speed AUTO MED 20 52rps 20 46rps 12 54rps ULO HI LO However if the fan speed setting is HI and room ...

Page 43: ...tor Outdoor fan motor 4 way valve 20 98rps 20 98rps 20 64rps 20 46rps SRK80ZR S 20 76rps 20 76rps 20 56rps 20 40rps SRK71ZR S 12 106rps 12 106rps 12 68rps 12 50rps SRK63ZR S Model Fan speed AUTO MED HI LO 20 26rps 20 26rps 12 32rps ULO 17 ޓ Outline of automatic operation a Determination of operation mode Heating Dehumidifying Cooling Indoor air temperature C Outdoor air temperature C A When both t...

Page 44: ...ting A When both the indoor and the outdoor air temperatures are in the range A cooling or heating is switched depending on the difference between the setting temperature and the indoor air temperature When the operation mode has been judged following the change of setting temperature with the remote control the hourly judgment of operation mode is cancelled b i ii iii c d 27 5 25 5 18 0 18 30 20 ...

Page 45: ...nued for more than 30 minutes continuously the following wind direction control is per formed a When the vertical wind direction is set at other than the vertical swing the flaps change to the horizontal position b When the horizontal wind direction is set at other than the horizontal swing the louver changes to the vertical po sition 09 SRK DB 087D b Frost prevention control i Operating condition...

Page 46: ...peration has continued for more than 30 seconds at the same speed it returns to the normal cooling operation d Cooling high pressure control i Purpose Prevents anomalous high pressure operation during cooling ii Detector Outdoor heat exchanger temperature TH1 iii Detail of operation P1 P2 P3 Outdoor heat exchanger temperature C 8rps 1 8rps 1 0rps After lapse of 30 sec or over 3 After lapse of 30 s...

Page 47: ...tion 3 Reset conditions Model 50 A B C D RPSmin 40 40 RPSmin 80 80 RPSmin 90 90 RPSmin 102 102 RPSmin 49 53 41 53 47 47 41 53 57 45 57 51 51 45 55 59 47 59 53 53 47 58 62 51 58 51 When the outdoor air temperature TH2 is 13ºC or 17ºC or higher continues for 30 seconds while the compressor command speed other than 0 rps a b c Taking the upper limit of compressor command speed range at 90 rps or 50 7...

Page 48: ... 10 12 2 4 Lower limit 40 45 rps Lower limit 50 45 rps Lower limit 60 rps Lower limit 35 rps Normal operation Outdoor air temperature C 6 Note 1 Values in are for the model SRK63 09 SRK DB 087D i Compressor overheat protection i Purpose ii Detail of operation 1 Discharge pipe temperature C 180 180 180 Example Fuzzy 95 105 115 180 180 2 j Current safe i Purpose ii Detail of operation k Current cut ...

Page 49: ...tion l Outdoor unit failure m Indoor fan motor protection Lower limit speed 25 rps 32 rps item i ii is satisfied Once the unit is stopped by this function it is not i ii 115 min 1 09 SRK DB 087D n Serial signal transmission error protection i Purpose ii Detail of operation o Rotor lock p Outdoor fan motor protection q Outdoor fan control at low outdoor temperature Cooling 1 i Operating conditions ...

Page 50: ...emperature Th2 Th2 Th1 6 40㻡N 40㻡N TH2㻢䋰㷄㪀 60㻡N TH2䋼䋰㷄㪀 10㻡Th1㻡40 0㻡Th1㻡40 40㻡N p Outdoor fan motor protection q Outdoor fan control at low outdoor temperature Cooling 1 i Operating conditions 2 Detail of operation Outdoor temperature 10 C Outdoor temperature 10 C Outdoor fan Outdoor temperature 16 C Outdoor temperature 16 C Outdoor fan a ii s Refrigeration cycle system protection i Starting condi...

Page 51: ...st control Other than the defrost control ii Contents of control 1 iii Reset condition When the compressor has been turned OFF 2 When the conditions of i above are met the compressor stops Error stop occurs when the compressor has stopped 3 times within 60 minutes 3 When after meeting the conditions of 1 and 2 above the compressor speed indoor air temperature Th1 and indoor heat exchanger temperat...

Page 52: ...OOTING PROCEDURES FOR ELECTRICAL EQUIPMENT 1 Cautions 2 Items to check before troubleshooting 3 Troubleshooting procedure If the air conditioner does not run at all Important YES YES YES NO NO NO NO YES Reference Reference AC proced wireless source source satisfied ...

Page 53: ... 52 15 SRK T 175 09 SRK DB 087D 4 Troubleshooting procedure If the air conditioner runs NO NO NO NO YES YES YES YES 53 54 60 54 60 ...

Page 54: ...tion the compressor is stopped Defective power source Broken signal wire defective indoor outdoor PCB Error of signal transmission If the compressor motor s magnetic pole positions cannot be correctly detected when the compressor starts The air conditioner stops Defective compressor Open phase on compressor Defective outdoor PCB Service valve is closed Refrigerant is insufficient Rotor lock When t...

Page 55: ...or unit Data are recorded for up to 5 previous occurrences Data which are older than the 5th previous occurrence are erased In addition data on the temperature of each sensor room temperature indoor heat exchanger outdoor heat exchanger outdoor air temperature discharge pipe remote control information operation switching fan speed switching are recorded when trouble occurs so more detailed informa...

Page 56: ... Fan speed mode mode mode 21ºC 22ºC 23ºC 24ºC 25ºC 1 time previous previous time 2 times previous 3 times previous 4 times previous 5 times previous Only for indoor heat exchanger sensor 2 Indicates the number of occasions previous to the present the error display data are from Temperature setting 26ºC 27ºC 28ºC 29ºC 30ºC 1 time previous previous time 2 times previous 3 times previous 4 times prev...

Page 57: ...the stop stop code 2 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 3 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 4 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 5 times p...

Page 58: ...scharge pipe sensor is abnormal anomalous stop 39 9 time flash Rotor lock 60 OFF 5 times 3 times 3 times 3 times 2 times Number of flashes when in service mode RUN light 10 s digit TIMER light 1 s digit Stop coad or Error coad Error content Cause Occurrence conditions Error display Auto recovery OFF 3 time flash 5 time flash 6 time flash 8 time flash 4 time flash 2 times 2 times 3 times 3 times Wh...

Page 59: ...N HEAT TIMER light 1 s digit Display pattern when in service mode Fan speed mode when there is an abnormal stop 2 time flash 3 time flash 4 time flash AUTO HI MED LO 5 time flash ULO 6 time flash 7 time flash operation mode and fan speed mode becomes as follows HI POWER ECONO Mode Operation mode Fan speed mode 0 5 sec 1 5 sec RUN light 10 s digit TIMER light 1 s digit 11 second interval 0 5 sec OF...

Page 60: ...84 94 55 45 35 25 15 5 5 15 25 35 45 55 65 75 85 95 56 46 36 26 16 6 6 16 26 36 46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 88 98 59 49 39 29 19 9 9 19 29 39 49 59 69 79 89 99 No does not sound Sensor name Room temperature sensor Indoor heat exchanger sensor Outdoor air temperature sensor Outdoor heat exchanger sensor 64ºC 64ºC 64ºC 64ºC ...

Page 61: ... 126 146 48 28 8 8 28 48 68 88 108 128 148 50 30 10 10 30 50 70 90 110 130 150 52 32 12 12 32 52 72 92 112 132 54 34 14 14 34 54 74 94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound Sensor value displayed when the error code is normal 64ºC 0 5 sec 0 1 sec 1 5 sec 11 second interval 0 5 sec OFF ON OFF ON OFF ON temperature information data Buzzer sound If ...

Page 62: ... 61 15 SRK T 175 09 SRK DB 087D Service data record form 55 Operation mode Fan speed mode Wireless r Wireless r Wireless r Wireless r Wireless r wireless Wireless r ...

Page 63: ...70 0 10 Discharge pipe sensor temperature characteristics Indoor fan motor error Broken sensor wire connector poor connection 0 0 20 40 60 80 100 120 135 20 40 60 80 100 120 140 160 180 Temperature C Resistance k Defective fan motor connector poor connection defective indoor PCB 68 for the fan motor and indoor PCB check pro Power source reset Is it normalized Malfunction by temporary noise Replace...

Page 64: ...short circuit Compressor output is open phase Outdoor PCB is faulty Service valve is closed EEV is faulty Compressor faulty Current safe stop Overload operation compressor lock overcharge 71 1 155Ω U V 1 133Ω V W 1 174Ω W U or more at 20ºC Model63 0 864Ω or more at 20 Model71 80 ...

Page 65: ...64 15 SRK T 175 09 SRK DB 087D Over heat of compressor Gas shortage defective discharge pipe sensor Error of signal transmission Wiring error including power cable defective indoor outdoor PCB 62 source ...

Page 66: ...poor connection defective outdoor PCB See pages 71 for the fan motor and outdoor PCB check pro After making sure the fan motor and outdoor PCB are nor Power source reset Is it normalized Malfunction by temporary noise Replace fan motor If the error persists after replacing the fan motor replace the outdoor PCB the fan motor and outdoor ourdoor PCB outdoor Replace outdoor fan motor AC AC AC AC AC A...

Page 67: ...d operation Service valve gas side closed Defective outdoor PCB Are the service valve gas side opened Open the valve NO YES NO YES Is the checked result of power transistor module OK Defective outdoor PCB Replace Defective outdoor PCB Replace NO YES YES Is the space for installation of indoor and or outdoor unit enough Is there any short circuit of air on indoor and or outdoor unit At heating does...

Page 68: ...door air temperature sensor Cooling Heating Discharge pipe sensor All modes Defrosting is performed for 10 minutes at approx 35 minutes Defrosting is performed for 10 minutes at approx 35 minutes Compressor stop The compressor cannot pick up its speed owing to the current safe so that the designed capacity is not achieved The compressor cannot pick up its speed owing to the heating overload protec...

Page 69: ...d 20V Replace indoor PCB YES b Indoor unit fan motor check procedure 1 Indoor PCB output check 2 Fan motor resistance check FMI DC15V Indoor PCB DC 308 336V DC several V 4 6 V CNU GND Blue Yellow White Black Red Measuring point Resistance when normal Measuring point Voltage range when normal k M ...

Page 70: ...eration Faulty part other than fan motor YES Fan motor is faulty YES YES YES NO NO NO Replace the faulty part and the fuse Test run then the unit for checking Is there any damage on the internal circuit of fan motor Check the resistance value to judge See pages 68 to 71 Is the fuse blown on the indoor and outdoor PCB Is there any faulty part fan motor etc See pages 67 to 71 Replace the fuse on the...

Page 71: ...ween DC 0 and approx 20V Inspection power transistor Remove the fasten terminal and test output voltage Inspection of outdoor fan motor See page 71 Check point of outdoor unit Color Color symbol RD Mark Yellow Green Y G Black BK Blue BL Yellow Y White WH Red Display Voltage range Voltage check in PCB The normal range is as follows DC280V DC230V DC310V DC220V DC218V DC222V DC213V DC212V DC214V DC21...

Page 72: ...valve as a separate unit Measuring point Resistance when normal b Outdoor unit fan motor check procedure Measuring point Voltage range when normal DC15V DC several 4 7V Outdoor PCB GND DC280 373V CNFAN Red Blue Brown Orange White FM0 1 2 3 i ii iii DC iv i Fan motor resistance check Measuring point Resistance when normal Blue Blue k ii source 280 373V ...

Page 73: ...case with a nipper or knife and grind burrs with a file etc Install the lower case to the flat wall with attached two wooden screws Connect the remote control cord to the terminal block Connect the terminal of remote control X with the terminal of indoor unit X Y X and Y are no polarity Wiring route is as shown in the right diagr depending on the pulling out direction The wiring inside the remote ...

Page 74: ...e control cord or center upper part nipper or knife n screws Connect the remote control cord to the terminal block Connect the terminal of remote control X Y with the terminal of indoor unit X Y X and Y are no polarity Wiring route is as shown in the right diagram depending on the pulling out direction The wiring inside the remote control case should be within 0 3mm2 recommended to 0 5mm2 The shea...

Page 75: ...ges to FUNCTION SET 2 Press button once and change to the TEMP RANGE indication 3 Press SET button and enter the temperature range setting mode 4 Select UPPER LIMIT or LOWER LIMIT by using button 5 Press SET button to fix 6 When UPPER LIMIT is selected valid during heating Press SET button to fix Indication example UPPER 26 C Displayed for two seconds After the fixed upper limit value displayed fo...

Page 76: ...n 04 accordingly You can select the louver stop position in the four The louver can stop at any position In normal working indication indoor unit temperature is indicated instead of airflow Only the master remote control can be indicated Heating preparation indication should not be indicated Temperature indication is by degree C Temperature indication is by degree F ON OFF button finished Start St...

Page 77: ...5 C increase in return air temperature of indoor unit To be reset producing 1 0 C increase in return air temperature of indoor unit To be reset producing 1 0 C increase in return air temperature of indoor unit To be reset producing 1 5 C increase in return air temperature of indoor unit To be reset producing 2 0 C increase in return air temperature of indoor unit When heating thermostat is OFF fan...

Page 78: ...e indoor unit and is automatically defined it series ndoor fan tap is raised er temperature to start frost prevention control How to check the current setting When you select from No and funcion and press set button by the previous operation the Setting displayed first is the current setting But if you select ALL UNIT the setting of the lowest number indoor unit is displayed Stop air conditioner a...

Page 79: ...tions Before use please read these Safety precautions thoroughly before installation All the cautionary items mentioned below are important safety related items to be taken into consideration so be sure to observe them at all times Incorrect installation could lead to serious consequences such as death major injury or envirommental destruction Symbols used in these precautions After completed inst...

Page 80: ...unit approximately 1 8m Be sure not to extend the connection cable on site If the connection cable is extended malfunction may occur Fix the interface on the wall pillar or the like Cut out the punch outs for the connection cables running into the casing with cutter Recess the electrical box procured locally and connection cables in the wall Mount the lower casing of the interface to the electrica...

Page 81: ... a external remote control unit procured locally to CNT terminal In case of the pulse input switch OFF the DIP switch SW2 1 on the interface PCB When setting operation permission prohibition mode switch OFF the DIP switch SW2 3 on the interface PCB Connection of Superlink E board Functions of CNT connector Switch ON the DIP switch SW2 2 Factory setting ON on the interface PCB Wiring connection bet...

Page 82: ...ll the wired remote control with reference to the attached instruction manual of wired remote control B 0 3mm2 x 2 core cable should be used for the wiring of wired remote control C Maximum length of wiring is 600m If the length of wiring exceeds 100m change the size of cable as mentioned below 100m 200m 0 5mm2 x 2 core 300m or less 0 75mm2 x 2 core 400m or less 1 25mm2 x 2 core 600m or less 2 0mm...

Page 83: ... 82 15 SRK T 175 central control 4 3 Superlink E board SC ADNA E F ...

Page 84: ... 83 15 SRK T 175 ...

Page 85: ...2 50 Declared capacity for heating Warmer season at indoor Declared coefficient of performance Warmer season at indoor temperature 20 and outdoor temperature Tj temperature 20 and outdoor temperature Tj Tj 2 Pdh 6 50 kW Tj 2 COPd 2 80 Tj 7 Pdh 4 18 kW Tj 7 COPd 5 57 Tj 12 Pdh 1 86 kW Tj 12 COPd 7 30 Tj bivalent temperature Pdh 6 50 kW Tj bivalent temperature COPd 2 80 Tj operating limit Pdh 5 03 k...

Page 86: ... capacity for heating Warmer season at indoor Declared coefficient of performance Warmer season at indoor temperature 20 and outdoor temperature Tj temperature 20 and outdoor temperature Tj Tj 2 Pdh 8 30 kW Tj 2 COPd 2 62 Tj 7 Pdh 5 34 kW Tj 7 COPd 5 15 Tj 12 Pdh 2 65 kW Tj 12 COPd 7 30 Tj bivalent temperature Pdh 8 30 kW Tj bivalent temperature COPd 2 62 Tj operating limit Pdh 6 46 kW Tj operatin...

Page 87: ... capacity for heating Warmer season at indoor Declared coefficient of performance Warmer season at indoor temperature 20 and outdoor temperature Tj temperature 20 and outdoor temperature Tj Tj 2 Pdh 8 40 kW Tj 2 COPd 2 63 Tj 7 Pdh 5 40 kW Tj 7 COPd 5 20 Tj 12 Pdh 2 65 kW Tj 12 COPd 7 20 Tj bivalent temperature Pdh 8 40 kW Tj bivalent temperature COPd 2 63 Tj operating limit Pdh 6 48 kW Tj operatin...

Page 88: ...itioning Refrigeration Divison 16 5 Konan 2 chome Minato ku Tokyo 108 8215 Japan http www mhi co jp Copyright MITSUBISHI HEAVY INDUSTRIES LTD Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice C ...