Mitsubishi Electric S Series Manual Download Page 106

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OUTDOOR UNIT

B-106

TROUBLESHOOTING

S series

OUTDOOR

UNIT

Once

3 times

4 times

Lighting

Goes out

Lighting

IPM protection

Lock protection

Fin temperature overheat

protection

P.C.boad temperature

overheat protection

Discharge temperature

overheat protection

HPS protection

High pressure protection

(Overheat protection)

Low discharge

temperature protection

Outdoor fan protection

Outdoor power system

Overcurrent protection

Fin temperature/P.C.

board temperature

overheat

Refrigerant system

High pressure

protection

Low discharge

temperature

Outdoor fan

Outdoor power

system

Outdoor LED indication

LED1 LED2

Abnormal point

(Failure mode)

Details of abnormal

Detecting method

Check point

When overcurrent is detected after

30 seconds of compressor start-up.

When overcurrent is detected within 30

seconds after the compressor gets started.

When the fin temperature exceeds 87

during operation.

When the P.C. board temperature exceeds

during operation.

When discharge temperature exceeds

116

When high-pressure is detected with the

high-pressure switch (HPS) during operation.

When the indoor coil thermistor (TH5)

exceeds 70

in HEAT mode.

When the outdoor heat exchanger thermistor

exceeds 70

in COOL mode.

When the frequency of the compressor is

kept 80Hz or more and discharge

temperature is kept under 39

for more

than 20 minutes.

When outdoor fan has stopped within 30

seconds 3 times in a row after outdoor fan

start -up,unit stops.

When IPM protection stop or lock

protection stop is continuously

performed 3 times within 1 minute after

the compressor get started, or when

converter protection stop or bus-bar

voltage protection stop is continuously

performed 3 times within 3 minutes after

start-up.

• Check the connection of the compressor

connecting wire.

• Check the inverter/ compressor.

• Check the stop valve.

• Check around outdoor unit.

• Check outdoor unit air passage.

• Check the outdoor fan motor.

• Check refrigerant circuit and refrigerant

amount.

• Check the LEV.

• Check the outdoor thermistors.

• Check refrigerant circuit and refrigerant

amount.

• Check the stop valve.

• Check refrigerant circuit and refrigerant

amount.

• Check the LEV.

• Check the outdoor fan motor.

• Reconnect compressor connector.

• Check the inverter/ compressor.

• Check the stop valve.

• Check the PAM module.

The blinking frequency shows the number of times the LED blinks after every 2.5-second OFF.

(Example) When the blinking frequency is “2”.

OFF

2.5-second OFF

0.5-second ON

Summary of Contents for S Series

Page 1: ... SLZ KA25VA SLZ KA25VAL SLZ KA35VA SLZ KA35VAL SLZ KA50VA SLZ KA50VAL B 2 CEILING CONCEALED SEZ B 39 SEZ KD25VA SEZ KD25VAL SEZ KD35VA SEZ KD35VAL SEZ KD50VA SEZ KD50VAL SEZ KD60VA SEZ KD60VAL SEZ KD71VA SEZ KD71VAL B 3 OUTDOOR UNIT SUZ B 85 SUZ KA25VA SUZ KA35VA SUZ KA50VA SUZ KA60VA SUZ KA71VA S series Model List ...

Page 2: ...Z KA50VAL SEZ KD50VAL SEZ KD60VA SEZ KD60VAL SEZ KD71VA SEZ KD71VAL SEZ KD25VAL SEZ KD35VA SEZ KD35VAL SEZ KD50VA SEZ KD25VA Heat pump MODELS Heat pump 600 600 Ceiling Cassatte SLZ KA series Ceiling Concealed SEZ KD series SUZ KA25VA SUZ KA35VA TYPE INVERTER Models Heat pump R410A Refrigerant TYPE S series model Combination Table ...

Page 3: ... B 7 B 1 3 WIRING DIAGRAM B 8 B 1 4 REFRIGERANT SYSTEM DIAGRAM B 9 B 1 5 PERFORMANCE DATA B 10 B 1 6 4 WAY AIR FLOW SYSTEM B 17 B 1 7 NOISE CRITERIA CURVES B 19 B 1 8 OUTLET AIR SPEED AND COVERAGE RANGE B 20 B 1 9 CENTER OF GRAVITY POSITION B 20 B 1 10 REMOTE CONTROLLER B 21 B 1 9 1 WIRELESS REMOTE CONTROLLER B 21 B 1 9 2 WIRED REMOTE CONTROLLER B 22 B 1 11 TROUBLESHOOTING B 23 B 1 12 INSTALLATION...

Page 4: ...erating Current max A 0 4 0 4 0 7 Dimensions Height mm 235 235 235 Width mm 570 570 570 Depth mm 570 570 570 Weight kg 17 17 17 Air Volume Low m min 8 0 8 0 8 0 Mid2 m min Mid m min 9 0 9 0 9 0 Hi m min 10 0 11 0 11 0 External Static Pressure Pa Sound Level Low dB A 28 29 30 Mid2 dB A Mid dB A 31 33 34 Hi dB A 37 38 39 Outdoor Unit Dimensions Height mm 550 550 850 Width mm 800 800 840 Depth mm 285...

Page 5: ...ection O D W 32 Vane motor Drain hole V M Air intake grille 55 35 35 55 Auto vane Grille Air intake hole Air intake hole Air outlet hole Air outlet hole 301 301 Emergency operation switch cooling Emergency operation switch heating Operation lamp DEFROST STAND BY lamp WIRELESS PANEL Receiver Detail drawing of fresh air intake Ceiling surface Cut out hole W 73 4 Burring hole 3 W 2 8 hole W 100 118 2...

Page 6: ...h the remote controller holder to the desired location using two tapping screws Insert the lower end of the controller into the holder Wireless remote controller Accessory Wall Remote controller holder Accessory Fixing screw Accessory The signal can travel up to approximately 7 meters in a straight line within 45 degrees to both right and left of the center line of the receiver In addition the sig...

Page 7: ...B 7 OUTLINES AND DIMENSIONS CEILING CASSETTE S series 600o600 CEILING CASSETTE 130 120 19 5 B 1 2 3 WIRED REMOTE CONTROLLER SLZ KA25 35 50VA Unit mm ...

Page 8: ... TH2 TH5 TERMINAL BLOCK INDOOR OUTDOOR CONNECTING LINE TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE ROOM TEMP THERMISTOR 0C 15k 25C 5 4k DETECT PIPE TEMP THERMISTOR LIQUID 0C 15k 25C 5 4k DETECT COND EVA TEMP THERMISTOR 0C 15k 25C 5 4k DETECT LEGEND SWE GRILLE OFF ON SW3 OFF 5 4 3 2 1 ON SW2 OFF 5 4 3 2 1 ON WHT RED RED CNDK POWER BOARD ZNR X1 RED ORN YLW YLW BLU BLU BLU BLU LED3 CN2L CN32 C...

Page 9: ...ndenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare B 1 4 REFRIGERANT SYSTEM DIAGRAM SLZ KA25VAL SLZ KA25VA SLZ KA35VAL SLZ KA35VA SLZ KA50VAL SLZ KA50VA ...

Page 10: ...0 44 718 3 20 1 41 0 44 738 2 94 2 82 0 96 552 2 81 2 70 0 96 580 2 70 2 59 0 96 607 2 60 2 50 0 96 635 3 06 2 57 0 84 580 2 94 2 47 0 84 614 2 85 2 39 0 84 628 2 75 2 31 0 84 656 3 19 2 30 0 72 600 3 08 2 21 0 72 638 3 00 2 16 0 72 656 2 88 2 07 0 72 683 3 35 2 01 0 60 628 3 23 1 94 0 60 662 3 15 1 89 0 60 683 3 05 1 83 0 60 718 3 45 1 66 0 48 662 3 35 1 61 0 48 697 3 30 1 58 0 48 718 3 20 1 54 0...

Page 11: ...8 718 2 08 1 83 0 88 745 2 58 1 96 0 76 704 2 40 1 82 0 76 738 2 23 1 69 0 76 780 2 73 1 74 0 64 731 2 55 1 63 0 64 773 2 38 1 52 0 64 800 2 88 1 50 0 52 759 2 70 1 40 0 52 794 2 55 1 33 0 52 828 3 03 1 21 0 40 787 2 85 1 14 0 40 821 2 68 1 07 0 40 856 2 45 2 25 0 92 676 2 25 2 07 0 92 718 2 08 1 91 0 92 745 2 58 2 06 0 80 704 2 40 1 92 0 80 738 2 23 1 78 0 80 780 2 73 1 85 0 68 731 2 55 1 73 0 68...

Page 12: ... 02 0 43 965 4 52 1 94 0 43 1018 4 41 1 90 0 43 1049 4 27 1 84 0 43 1102 4 83 1 50 0 31 1018 4 69 1 45 0 31 1071 4 62 1 43 0 31 1102 4 48 1 39 0 31 1134 4 11 3 41 0 83 848 3 94 3 27 0 83 890 3 78 3 14 0 83 933 3 64 3 02 0 83 975 4 29 3 04 0 71 890 4 11 2 92 0 71 943 3 99 2 83 0 71 965 3 85 2 73 0 71 1007 4 46 2 63 0 59 922 4 31 2 54 0 59 981 4 20 2 48 0 59 1007 4 03 2 37 0 59 1049 4 69 2 20 0 47 9...

Page 13: ... 61 2 42 0 67 1081 3 36 2 25 0 67 1134 3 12 2 09 0 67 1198 3 82 2 10 0 55 1124 3 57 1 96 0 55 1187 3 33 1 83 0 55 1230 4 03 1 73 0 43 1166 3 78 1 63 0 43 1219 3 57 1 54 0 43 1272 4 24 1 31 0 31 1208 3 99 1 24 0 31 1261 3 75 1 16 0 31 1314 3 43 2 85 0 83 1039 3 15 2 61 0 83 1102 2 91 2 41 0 83 1145 3 61 2 56 0 71 1081 3 36 2 39 0 71 1134 3 12 2 21 0 71 1198 3 82 2 25 0 59 1124 3 57 2 11 0 59 1187 3...

Page 14: ...508 1565 1451 1508 1565 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 1369 1451 1508 1565 1646 2 59 2 05 2 79 2 27 1 70 3 00 2 49 1 92 3 21 2 70 2 15 1 54 2 92 2 38 1 78 3 62 3 13 2 60 2 02 1 36 3 83 3 35 2 83 2 25 1 60 4 04 3 57 3 06 2 49 1 85 4 24 3 78 3 28 2 73 2 10 4 45 4 00 3 51 2 97 2 34 4...

Page 15: ...4 42 4 69 4 97 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 4 14 4 42 4 69 4 97 5 24 0 50 0 38 0 54 0 42 0 30 0 58 0 46 0 34 0 62 0 50 0 38 0 26 0 54 0 42 0 30 0 70 0 58 0 46 0 34 0 22 0 74 0 62 0 50 0 38 0 26 0 78 0 66 0 54 0 42 0 30 0 82 0 70 0 58 0 46 0 34 0 86 0 74 0 62 0 50 0 38 0 90 0 78 ...

Page 16: ... kW INPUT 1100 W SLZ KA50VA L SUZ KA50VA at Rated frequency CAPACITY 5 0 kW INPUT 1550 W OUTDOOR W B INDOOR 10 D B Q INPUT 5 Q INPUT 0 Q INPUT 5 Q INPUT 10 Q INPUT 15 Q INPUT 20 Q INPUT 15 21 26 OUTDOOR W B INDOOR 10 D B Q INPUT 5 Q INPUT 0 Q INPUT 5 Q INPUT 10 Q INPUT 15 Q INPUT 20 Q INPUT 15 21 26 3 15 3 00 2 70 1008 1085 1163 3 80 3 60 3 35 1209 1287 1364 4 45 4 25 3 95 1364 1426 1504 5 10 4 85...

Page 17: ... controller adapter PAC SA88HA E Indoor controller board Distance between indoor controller board and relay must be within 10m Be sure to secure insulation with tape etc 5 Green Yellow Orange Connector 5P Indoor unit side Multiple remote controller adapter PAC SA88HA E Be sure to secure insulation with tape etc Installation at site CN51 on indoor unit board Red Brown 1 CN51 MB CN51 WHT 3 OPERATION...

Page 18: ...n as in the picture below Insulate the disconnected connector with plastic tape Vane motor Horizontal vane Connector Unlock button Vane motor 3 Set manualy the vertical vane of the air outlet gently within the range shown in the table below Measured standard posi tion of the grille Horizontal vane Dimension A mm 21 25 28 30 Level 30 Min Downward 45 Downward 55 Downward 70 Max Dimension A can be se...

Page 19: ...B 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz SLZ KA25VAL SLZ KA25VA High Medium 37 SPL dB 31 LINE 50Hz NOTCH Low 28 UNIT 1 5m MICROPHONE CEILING 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 μbar BAND CENTER FREQUENCIES Hz SLZ KA50VAL SLZ KA50VA...

Page 20: ... distance to which the 0 25m sec air can reach when air is blown out horizontally from the unit at the High notch position The coverage range should be used only as a general guideline since it varies according to the size of the room and the furni ture in the room B 1 8 OUTLET AIR SPEED AND COVERAGE RANGE B 1 9 CENTER OF GRAVITY POSITION Refrigerant pipe Refrigerant piping side Y X Z Model X Y Z ...

Page 21: ...ion FAN SPEED button To set fan speed to Low Medium or High TIMER SELECT button To set time to start or stop unit operation TEMPERATURE SETTING button To set any desired room temperature MODE SELECT button To change the operation mode Auto Cooling Heating and Drying SLZ B 1 10 REMOTE CONTROLLER B 1 10 1 WIRELESS REMOTE CONTROLLER Avoid pushing buttons with fingernails and other sharp objects Sharp...

Page 22: ...flow is set to Low or downward during COOL or DRY mode Operation varies according to model The indicator goes off in one hour at which time the airflow direction also changes Room Temperature display Shows the room temperature The room temperature display range is 8 39 The display blinks if the temperature is less than 8 or 39 or more Louver display Indicates the action of the swing louver Does no...

Page 23: ...K button twice Set address with TEMP button if system control is used Press the ON OFF button to stop the self check CHECK button Address TEMP button IC Indoor unit OC Outdoor unit Check code Unit No Timer ON OFF button To cancel check code Display the error code on the self check result display screen The address for self check will blink when the ON OFF button is pressed twice within three secon...

Page 24: ... OPERATION INDICATOR lamp flashes Check code Symptom Remark Number of times Wireless remote controller Wired remote controller Beeper sounds OPERATION INDICATOR lamp flashes Check code Number of times Wireless remote controller Wired remote controller 1 P1 Intake sensor error P9 Pipe TH5 sensor error 2 P2 Pipe TH2 sensor error 3 E6 E7 Indoor outdoor unit communication error 4 P4 Drain sensor error...

Page 25: ... phase wiring for the outdoor unit s power terminal block Incorrect wiring between indoor and outdoor units incorrect polarity of S1 S2 S3 Remote controller wire short Note Operation is not possible for about 30 seconds after cancellation of function selection Correct operation For description of each LED LED1 2 3 provided on the indoor controller refer to the following table LED1 power for microc...

Page 26: ...y it could result in a fire or an electric shock due to dust water etc Be sure to use the part provided or specified parts for the installation work The use of defective parts could cause an injury or leakage of water due to a fire an electric shock the unit falling etc Ventilate the room if refrigerant leaks during operation If the refrigerant comes in contact with a flame poisonous gases will be...

Page 27: ... installation locations Fig 4 2 Using the installation template top of the package and the gauge supplied as an accessory with the grille make an opening in the ceiling so that the main unit can be installed as shown in the diagram The method for using the template and the gauge are shown Before use check the dimensions of template and gauge because they may change due to fluctuations of temperatu...

Page 28: ...10 3 8 The bolts do not come with the unit Ferro concrete structure Secure the suspension bolts using the method shown or use steel or wooden hang ers etc to install the suspension bolts Unit Grille Pillow Ceiling Rafter Beam Roof each procure locally locally Fig 4 4 Ceiling Nut Procure locally Washer with insulation Accessory Fig 4 5 4 5 Unit suspension procedures Fig 4 5 Suspend the main unit as...

Page 29: ...ve all burrs from the cut cross section of pipe tube Put the end of the copper tube pipe to downward direction as you remove burrs in order to avoid burrs drop in the tubing 5 2 3 Putting nut on Fig 5 4 Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work 5 2 4 Flaring work Fig 5 5 Carry out fl...

Page 30: ...alve instructions are marked on outdoor unit Apply a thin coat of refrigeration oil on the seat surface of pipe Fig 5 9 For connection first align the center then tighten the first 3 to 4 turns of flare nut Use tightening torque table below as a guideline for indoor unit side union joint section and tighten using two wrenches Excessive tightening damages the flare section Copper pipe O D Flare nut...

Page 31: ...e to electric component box by using buffer bushing for tensile force PG connection or the like Warning Attach the electric component cover securely If it is attached incorrectly it could result in a fire electric shock due to dust water etc Use the specified indoor outdoor unit connecting cable to connect the in door and outdoor units and fix the cable to the terminal block securely so that no st...

Page 32: ...ight 7 3 2 Wired remote controller 1 Installing procedures 1 Select an installing position for the remote controller Fig 7 6 The temperature sensors are located on both remote controller and indoor unit Procure the following parts locally Two piece switch box Thin copper conduit tube Lock nuts and bushings Remote controller profile Required clearances surrounding the remote controller Installation...

Page 33: ...voltage to be used Power supply voltage 240 V setting number 1 220 V 230 V setting number 2 Press the MODE button and mode and the setting number and will change to being on constantly and the contents of the setting can be confirmed Press the FILTER and TEST RUN buttons simultaneously for at least two seconds The function selection screen will disappear momentarily and the air conditioner OFF dis...

Page 34: ... for the intake grille With the intake grille in the open position remove the hinge of the intake grille from the grille as indicated by the arrow Fig 8 2 8 3 Installing the grille Please pay attention because there is a restriction in the attachment position of the grille 8 3 1 Preparations Fig 8 5 Install the two enclosed screws with washer in the main unit at the corner refriger ant pipe area a...

Page 35: ...it could malfunction Fig 8 9 Button Vane motor Up down vanes Connector Fig 8 10 8 3 4 Wire connection Fig 8 8 Be sure to connect the unit to the connector white 10 pole red 9 pole Next at tach the white glass tube that comes with the main unit so that the tube covers the connector Close the opening of the glass tube with the band Make sure that there is no slack in the each lead wire at the fasten...

Page 36: ...ss the ON OFF button again to turn the air conditioner off Emergency operation when wireless remote controller is lost The emergency operation can be started by pressing the button cooling heat ing When the button is once pressed the unit will start the emergency operation at a fixed temperature setting of 24 in cooling mode or heating mode Note Emergency operation does not stop automatically Alth...

Page 37: ... 1 For wireless remote controller Fig 9 3 During the test run ensure the water is being properly drained out and that no water is leaking from joints Always check this during installation even if the unit is not required to provide cool ing drying at that time Similarly check the drainage before finishing ceiling installation in a new premises 1 Remove the cover of the water supply inlet and add a...

Page 38: ...B 38 600o600 CEILING CASSETTE CEILING CASSETTE S series ...

Page 39: ...TROLLER B 42 B 2 3 WIRING DIAGRAM B 43 B 2 4 REFRIGERANT SYSTEM DIAGRAM B 44 B 2 5 PERFORMANCE DATA B 45 B 2 6 NOISE CRITERIA CURVES B 56 B 2 7 INDOOR FAN PERFORMANCE AND CORRECTED AIR FLOW B 61 B 2 8 CENTER OF GRAVITY POSITION B 65 B 2 9 REMOTE CONTROLLER B 66 B 2 9 1 WIRED REMOTE CONTROLLER B 66 B 2 9 2 WIRELESS REMOTE CONTROLLER B 67 B 2 10 TROUBLESHOOTING B 68 B 2 11 INSTALLATION PROCEDURE B 6...

Page 40: ...9 Dimensions Height mm 200 200 200 200 200 Width mm 790 990 990 1190 1190 Depth mm 700 700 700 700 700 Weight kg 18 21 23 27 27 Air Volume Low m min 6 0 7 0 10 0 12 0 12 0 Mid2 m min Mid m min 7 0 9 0 12 5 15 0 16 0 Hi m min 9 0 11 0 15 0 18 0 20 0 External Static Pressure Pa 5 15 35 50 5 15 35 50 5 15 35 50 5 15 35 50 5 15 35 50 Sound Level Low dB A 22 23 29 29 29 Mid2 dB A Mid dB A 25 28 33 33 3...

Page 41: ...Control box 2XE W2 9 2X2 W2 9 L W2 9 Knockout hole W27 Indoor outdoor connecting line Knockout hole W27 Remote controller transmission line 10 170 57 More than 300 450 G 50 50 150 50 777 450 15 20 100 100X E 1 F 30 D Duct 625 Suspension bolt pitch 90 A 23 B Suspension bolt pitch C 23 677 700 25 100 23 150 Duct 116 70 270 102 More than 10mm More than 20mm 25 49 10 88 100 100XJ K 88 12 12 37 100 20 ...

Page 42: ...B 42 OUTLINES AND DIMENSIONS CEILING CONCEALED S series CEILING CONCEALED 130 120 19 5 159 3 55 58 19 B 2 2 2 WIRED REMOTE CONTROLLER B 2 2 3 WIRELESS REMOTE CONTROLLER Unit mm ...

Page 43: ...BLOCK INDOOR OUTDOOR CONNECTING LINE LED2 LED3 TRANSMISSION INDOOR OUTDOOR POWER SUPPLY I B LED1 POWER SUPPLY I B ZNR01 02 VARISTOR AUX RELAY X1 FUSE FUSE AC250V 6 3A DSA CONNECTOR CENTRALLY CONTROL CN41 CN51 CONNECTOR HA TERMINAL A CN2L NAME SYMBOL EXPLANATION SW1 SW2 INDOOR CONTROLLER BOARD CN32 I B SYMBOL SYMBOL NAME CONNECTOR LOSSNAY CONNECTOR REMOTE SWITCH SWE ARRESTER SWITCH FOR MODE SELECTI...

Page 44: ...ndenser evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare B 2 4 REFRIGERANT SYSTEM DIAGRAM SEZ KD25VA L SEZ KD35VA L SEZ KD50VA L SEZ KD60VA L SEZ KD71VA L ...

Page 45: ...8 786 3 30 1 25 0 38 809 3 20 1 22 0 38 832 28 18 2 94 2 64 0 90 622 2 81 2 53 0 90 654 2 70 2 43 0 90 685 2 60 2 34 0 90 716 28 20 3 06 2 39 0 78 654 2 94 2 29 0 78 692 2 85 2 22 0 78 708 2 75 2 15 0 78 739 28 22 3 19 2 10 0 66 677 3 08 2 03 0 66 720 3 00 1 98 0 66 739 2 88 1 90 0 66 770 28 24 3 35 1 81 0 54 708 3 23 1 74 0 54 747 3 15 1 70 0 54 770 3 05 1 65 0 54 809 28 26 3 45 1 45 0 42 747 3 3...

Page 46: ...2 58 2 01 0 78 794 2 40 1 87 0 78 832 2 23 1 74 0 78 28 22 2 73 1 80 0 66 825 2 55 1 68 0 66 871 2 38 1 57 0 66 28 24 2 88 1 55 0 54 856 2 70 1 46 0 54 895 2 55 1 38 0 54 28 26 3 03 1 27 0 42 887 2 85 1 20 0 42 926 2 68 1 12 0 42 29 18 2 45 2 30 0 94 762 2 25 2 12 0 94 809 2 08 1 95 0 94 29 20 2 58 2 11 0 82 794 2 40 1 97 0 82 832 2 23 1 82 0 82 29 22 2 73 1 91 0 70 825 2 55 1 79 0 70 871 2 38 1 6...

Page 47: ...1101 4 62 1 66 0 36 1134 4 48 1 61 0 36 1166 28 18 4 11 3 62 0 88 872 3 94 3 47 0 88 916 3 78 3 33 0 88 959 3 64 3 20 0 88 1003 28 20 4 29 3 26 0 76 916 4 11 3 13 0 76 970 3 99 3 03 0 76 992 3 85 2 93 0 76 1036 28 22 4 46 2 86 0 64 948 4 31 2 76 0 64 1008 4 20 2 69 0 64 1036 4 03 2 58 0 64 1079 28 24 4 69 2 44 0 52 992 4 52 2 35 0 52 1046 4 41 2 29 0 52 1079 4 27 2 22 0 52 1134 28 26 4 83 1 93 0 4...

Page 48: ... 2 55 0 76 1166 3 12 2 37 0 76 28 22 3 82 2 44 0 64 1155 3 57 2 28 0 64 1221 3 33 2 13 0 64 28 24 4 03 2 09 0 52 1199 3 78 1 97 0 52 1254 3 57 1 86 0 52 28 26 4 24 1 69 0 40 1243 3 99 1 60 0 40 1297 3 75 1 50 0 40 29 18 3 43 3 16 0 92 1068 3 15 2 90 0 92 1134 2 91 2 67 0 92 29 20 3 61 2 88 0 80 1112 3 36 2 69 0 80 1166 3 12 2 49 0 80 29 22 3 82 2 59 0 68 1155 3 57 2 43 0 68 1221 3 33 2 26 0 68 29 ...

Page 49: ...0 34 1798 6 60 2 24 0 34 1851 6 40 2 18 0 34 1905 28 18 5 88 5 05 0 86 1424 5 63 4 84 0 86 1495 5 40 4 64 0 86 1566 5 20 4 47 0 86 1638 28 20 6 13 4 53 0 74 1495 5 88 4 35 0 74 1584 5 70 4 22 0 74 1620 5 50 4 07 0 74 1691 28 22 6 38 3 95 0 62 1549 6 15 3 81 0 62 1647 6 00 3 72 0 62 1691 5 75 3 57 0 62 1762 28 24 6 70 3 35 0 50 1620 6 45 3 23 0 50 1709 6 30 3 15 0 50 1762 6 10 3 05 0 50 1851 28 26 ...

Page 50: ... 3 55 0 74 1905 4 45 3 29 0 74 28 22 5 45 3 38 0 62 1887 5 10 3 16 0 62 1994 4 75 2 95 0 62 28 24 5 75 2 88 0 50 1958 5 40 2 70 0 50 2047 5 10 2 55 0 50 28 26 6 05 2 30 0 38 2029 5 70 2 17 0 38 2118 5 35 2 03 0 38 29 18 4 90 4 41 0 90 1744 4 50 4 05 0 90 1851 4 15 3 74 0 90 29 20 5 15 4 02 0 78 1816 4 80 3 74 0 78 1905 4 45 3 47 0 78 29 22 5 45 3 60 0 66 1887 5 10 3 37 0 66 1994 4 75 3 14 0 66 29 ...

Page 51: ...0 37 1909 7 26 2 69 0 37 1966 7 04 2 60 0 37 2022 28 18 6 46 5 75 0 89 1512 6 19 5 51 0 89 1588 5 94 5 29 0 89 1663 5 72 5 09 0 89 1739 28 20 6 74 5 19 0 77 1588 6 46 4 98 0 77 1682 6 27 4 83 0 77 1720 6 05 4 66 0 77 1796 28 22 7 01 4 56 0 65 1644 6 77 4 40 0 65 1748 6 60 4 29 0 65 1796 6 33 4 11 0 65 1871 28 24 7 37 3 91 0 53 1720 7 10 3 76 0 53 1814 6 93 3 67 0 53 1871 6 71 3 56 0 53 1966 28 26 ...

Page 52: ... 4 07 0 77 2022 4 90 3 77 0 77 28 22 6 00 3 90 0 65 2003 5 61 3 65 0 65 2117 5 23 3 40 0 65 28 24 6 33 3 35 0 53 2079 5 94 3 15 0 53 2174 5 61 2 97 0 53 28 26 6 66 2 73 0 41 2155 6 27 2 57 0 41 2249 5 89 2 41 0 41 29 18 5 39 5 01 0 93 1852 4 95 4 60 0 93 1966 4 57 4 25 0 93 29 20 5 67 4 59 0 81 1928 5 28 4 28 0 81 2022 4 90 3 96 0 81 29 22 6 00 4 14 0 69 2003 5 61 3 87 0 69 2117 5 23 3 61 0 69 29 ...

Page 53: ...0 32 2555 9 37 3 00 0 32 2631 9 09 2 91 0 32 2707 28 18 8 34 7 01 0 84 2024 7 99 6 71 0 84 2125 7 67 6 44 0 84 2226 7 38 6 20 0 84 2328 28 20 8 70 6 26 0 72 2125 8 34 6 01 0 72 2252 8 09 5 83 0 72 2302 7 81 5 62 0 72 2404 28 22 9 05 5 43 0 60 2201 8 73 5 24 0 60 2340 8 52 5 11 0 60 2404 8 17 4 90 0 60 2505 28 24 9 51 4 57 0 48 2302 9 16 4 40 0 48 2429 8 95 4 29 0 48 2505 8 66 4 16 0 48 2631 28 26 ...

Page 54: ... 4 91 0 72 2707 6 32 4 55 0 72 28 22 7 74 4 64 0 60 2682 7 24 4 35 0 60 2834 6 75 4 05 0 60 28 24 8 17 3 92 0 48 2783 7 67 3 68 0 48 2910 7 24 3 48 0 48 28 26 8 59 3 09 0 36 2884 8 09 2 91 0 36 3011 7 60 2 73 0 36 29 18 6 96 6 12 0 88 2479 6 39 5 62 0 88 2631 5 89 5 19 0 88 29 20 7 31 5 56 0 76 2581 6 82 5 18 0 76 2707 6 32 4 80 0 76 29 22 7 74 4 95 0 64 2682 7 24 4 63 0 64 2834 6 75 4 32 0 64 29 ...

Page 55: ...UT 15 3 78 1216 4 56 1459 5 34 1646 6 12 1777 6 90 1889 7 62 1945 8 40 1982 21 3 60 1309 4 32 1552 5 10 1720 5 82 1851 6 60 1945 7 32 2001 8 07 2076 26 3 24 1403 4 02 1646 4 74 1814 5 52 1945 6 30 2038 7 02 2094 7 80 2151 OUTDOOR WB INDOOR 10 5 0 5 10 15 20 DB Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT 15 4 41 1333 5 32 1599 6 23 1804 7 14 1948 8 05 2071 8 89 2132 9 80 2173 21 4 20 14...

Page 56: ...63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 bar SEZ KD25VA L External static pressure 5Pa High Middle 29 SPL dB 25 Low 22 LINE NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS N...

Page 57: ...0 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 bar SEZ KD35VA L External static pressure 50Pa High Middle 35 SPL dB 31 Low 25 LINE NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEA...

Page 58: ... 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 bar SEZ KD50VA L External static pressure 50Pa High Middle 39 SPL dB 36 Low 32 LINE NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEAR...

Page 59: ... 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 bar SEZ KD60VA L External static pressure 50Pa High Middle 39 SPL dB 36 Low 32 LINE NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEAR...

Page 60: ...250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 BAND CENTER FREQUENCIES Hz OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 bar SEZ KD71VA L External static pressure 50Pa High Middle 42 SPL dB 37 Low 32 LINE NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE N...

Page 61: ...ted point 0 40 30 20 10 4 5 6 7 8 9 10 Airflow rate m3 min External static pressure Pa SEZ KD25VA L External static pressure 5Pa 220 240V 50 60Hz Middle Low High Rated point Limit 0 10 20 30 40 50 60 70 80 4 5 6 7 8 9 10 Airflow rate m3 min External static pressure Pa SEZ KD25VA L External static pressure 50Pa 220 240V 50 60Hz Middle Low High Limit Rated point 0 10 20 30 40 50 60 70 80 4 5 6 7 8 9...

Page 62: ...sure Pa 6 7 8 9 10 11 12 Airflow rate m3 min SEZ KD35VA L External static pressure 5Pa 220 240V 50 60Hz Middle Low High Limit Rated point 0 20 10 30 40 50 60 70 80 External static pressure Pa Airflow rate m3 min SEZ KD35VA L External static pressure 50Pa 220 240V 50 60Hz 6 7 8 9 10 11 12 Middle Low High Limit Rated point 0 20 10 30 40 50 60 70 80 External static pressure Pa SEZ KD35VA L External s...

Page 63: ...xternal static pressure 5Pa 220 240V 50 60Hz Airflow rate m3 min 0 40 30 20 10 8 9 10 11 12 13 14 15 16 Middle Low High Limit Rated point External static pressure Pa SEZ KD50VA L External static pressure 50Pa 220 240V 50 60Hz Airflow rate m3 min 8 9 10 11 12 13 14 15 16 0 10 20 30 40 50 60 70 80 Middle Low High Limit Rated point External static pressure Pa SEZ KD50VA L External static pressure 35P...

Page 64: ... static pressure 5Pa 220 240V 50 60Hz Airflow rate m3 min 9 10 11 12 13 14 15 16 17 18 19 0 40 30 20 10 Middle Low High Limit Rated point External static pressure Pa SEZ KD60VA L External static pressure 50Pa 220 240V 50 60Hz Airflow rate m3 min 9 10 11 12 13 14 15 16 17 18 19 0 10 20 30 40 60 70 50 80 Middle Limit Rated point Low High External static pressure Pa SEZ KD60VA L External static press...

Page 65: ...e Low High Limit Rated point External static pressure Pa SEZ KD71VA L External static pressure 50Pa 220 240V 50 60Hz Airflow rate m3 min 21 20 19 18 17 16 15 14 13 12 11 0 10 20 30 40 50 80 70 60 Middle Low High Limit Rated point External static pressure Pa SEZ KD71VA L External static pressure 35Pa 220 240V 50 60Hz Airflow rate m3 min 0 10 20 30 40 50 80 70 60 21 20 19 18 17 16 15 14 13 12 11 Mid...

Page 66: ...e Hour Only indicator Displayed if the airflow is set to Low or downward during COOL or DRY mode Operation varies according to model The indicator goes off in one hour at which time the airflow direction also changes Room Temperature display Shows the room temperature The room temperature display range is 8 39 The display blinks if the temperature is less than 8 or 39 or more Louver display Indica...

Page 67: ...tion Louver button Changes left right airflow direction Temperature setting buttons Mode button Changes operation mode Set Time button Sets the time Timer Off button Timer On button Transmission area Transmission indicator Timer indicator Operation areas Hour button Minute button Reset button Check button For explanation purposes all of the items that appear in the display are shown All items are ...

Page 68: ...t F F F F No corresponding unit Check code Symptom Remark P1 Intake sensor error P2 Pipe TH2 sensor error P9 Pipe TH5 sensor error E6 E7 Indoor outdoor unit communication error P4 Drain sensor error P5 Drain pump error P6 Freezing Overheating protection operation EE Communication error between indoor and outdoor units P8 Pipe temperature error E0 E3 E5 Remote controller transmission error E1 E2 Re...

Page 69: ...r rear side SUZ KA25VA 35VA SUZ KA25VA 35VA 3 1 5 2 5 1 3 3 50 150 450 450 49 625 777 20 100 90 23 C B A D B E 200 Access door Electrical parts box Air inlet Air outlet Ceiling surface Service space viewed from the side Service space viewed from the direction of arrow 600 mm or more 100 mm or more 10 mm or more 300 mm or more Model SEZ KD25 SEZ KD35 50 SEZ KD60 71 A 700 900 1100 B 752 952 1152 C 7...

Page 70: ...Uneven 4 Burred 6 3 6 5 Model SEZ KD25 35 SEZ KD50 SEZ KD60 SEZ KD71 A 9 52 12 7 15 88 15 88 B 6 35 6 35 6 35 9 52 Indoor unit Pipe cov 5 25 er short accessory Tie band accessory Band fixing part Insertion margin Drain hose accessory Drain pipe O D ø32 PVC TUBE field supply Insulating material field supply Max 145 5 mm Fig 6 11 Pipe cover small accessory Caution Pull out the thermal insulation on ...

Page 71: ...cable Power source wiring Tensile force Use ordinary bushing Signal receiving unit wiring Terminal bed for power source and indoor transmission To 1 phase power source Connecting the signal receiving unit Connect the signal receiving unit to the CN90 Connect to the wireless remote controller board on the indoor unit using the supplied remote controller wire Con nect the signal receiving units to a...

Page 72: ... 1 5 mm2 or more Outdoor terminal block Earth wire green yellow Power supply cord 2 0 mm2 or more Outdoor terminal block Always install an earth wire 1 core 1 5 mm2 longer than other cables Signal receiving unit cable accessory wire length 5 m Signal receiving unit Power supply cord Cable 3 core 2 0 mm2 or more in con formity with Design 60245 IEC 57 Indoor controller board 8 8 2 J41 J42 JP1 JP2 J...

Page 73: ...ape Remote controller wire Order wire Fig 8 13 Insert the minus screwdriver toward the arrow pointed and wrench it to remove the cover A flat screwdriver whose width of blade is between 4 and 7 mm 5 32 9 32 inch must be used Fig 8 14 Indoor unit Hang the cover to the upper hooks 2 places Mount the cover to the lower case Cross section of upper hooks Fig 8 10 Fig 8 15 When using the switch box When...

Page 74: ...us screwdriver toward the arrow pointed and wrench it to remove the cover A flat screwdriver whose width of blade is between 4 and 7 mm 5 32 9 32 inch must be used Fig 8 19 Hang the cover to the upper hooks 2 places Mount the cover to the lower case Cross section of upper hooks Loosen terminal screw Terminal block Lead wire Fig 8 20 Fig 8 21 Service panel Remove one fixing screw to open the servic...

Page 75: ... Fig 8 22 8 5 9 Fig 9 1 TEST RUN button MODE button FAN button VANE button 9 1 ON OFF TEMP FAN VANE TEST RUN AUTO STOP AUTO START h min LOUVER MODE CHECK RESET SET CLOCK TESTRUN 10 Fig 10 1 Indoor unit Union Liquid pipe Gas pipe Stop valve Outdoor unit Refrigerant gas cylinder operating valve Refrigerant gas cylinder for R410A with siphon Refrigerant liquid Electronic scale for refrigerant chargin...

Page 76: ...al part cover in the indoor unit and or the service panel in the outdoor unit are not attached securely it could result in a fire or an electric shock due to dust water etc Be sure to use the part provided or specified parts for the installation work The use of defective parts could cause an injury or leakage of water due to a fire an electric shock the unit falling etc Ventilate the room if refri...

Page 77: ...ce space SUZ KA25VA Fig 3 2 100 mm or more 350 mm or more Basically open 100 mm or more without only obstruction in front and on both sides of the unit 200 mm or more Open two sides of left right or rear side When the piping is to be attached to a wall containing metals tin plated or metal netting use a chemically treated wooden piece 20 mm or thicker between the wall and the piping or wrap 7 to 8...

Page 78: ... at above 6 2 5 Check Fig 6 7 Smooth all around 4 Scratch on flared plane 0 Inside is shining without any scratches 5 Cracked 1 Even length all around 6 Uneven 2 Too much 7 Bad examples 3 Tilted Compare the flared work with a figure in right side hand If flare is noted to be defective cut off the flared section and do flaring work again 6 3 Pipe connection Fig 6 8 Apply a thin coat of refrigeratio...

Page 79: ...the indoor unit end pipe This metal brace should be provided 50 cm away from the indoor unit s flare connection 6 4 Purging procedures leak test PURGING PROCEDURES Connect the refrigerant pipes both the liquid and gas pipes between the indoor and the outdoor units Remove the service port cap of the stop valve on the side of the outdoor unit gas pipe The stop valve will not work in its initial stat...

Page 80: ... KD60 SEZ KD71 1 phase N 230V 50Hz 10 10 20 20 20 Warning The compressor will not operate unless the power supply phase connection is correct Grounding protection with a no fuse breaker earth leakage breaker ELB is usually installed for The connection wiring between the outdoor and indoor units can be extended up to a maximum of 50 meters and the total extension including the crosso ver wiring bet...

Page 81: ...ful for installing the Signal Receiving Unit or replacing the lamp 2 Installation on the switch box or on the wall 1 Use the remote controller wire to connect it to the connector CN90 on the controller circuit board on the indoor unit Refer to the 2 Setting the Pair Number Switch for details on controller circuit board on the indoor unit 2 Seal the Signal Receiving Unit cord lead in hole with putt...

Page 82: ...t accumulat ing in the compressor This is not a malfunction Perform the following procedures 1 Remove the wires from the compressor and measure the insulation resistance of the compressor 2 If the insulation resistance is below 1 M the compressor is faulty or the resist ance dropped due the accumulation of refrigerant in the compressor 3 After connecting the wires to the compressor the compressor ...

Page 83: ...ption Open short of outdoor unit thermistors Compressor overcurrent interruption When compressor locked Abnormal high discharging temperature 49C worked insufficient refrigerant Abnormal high pressure 63H worked Overheating safeguard operation Abnormal temperature of heat sink Outdoor unit fan protection stop Compressor overcurrent interruption Abnormal of power module Abnormality of super heat du...

Page 84: ...r the refrigerating cycle Caution Do not discharge the refrigerant into the atmosphere Take care not to discharge refrigerant into the atmosphere during installa tion reinstallation or repairs to the refrigerant circuit For additional charging charge the refrigerant from liquid phase of the gas cylinder If the refrigerant is charged from the gas phase composition change may occur in the refrigeran...

Page 85: ...8 B 3 3 REFRIGERANT SYSTEM DIAGRAM B 92 B 3 4 PERFORMANCE CURVES B 95 B 3 5 NOISE CRITERIA CURVES B 99 B 3 6 ACTUATOR CONTROL B 100 B 3 7 TROUBLESHOOTING B 101 B 3 8 EARTHQUAKE PROOF STRENGTH ANALYSIS B 107 B 3 9 CAPACITY CORRECTION RATIO CURVE PIPING LENGTH B 111 B 3 10 INSTALLATION PROCEDURE B 112 ...

Page 86: ... 304 325 40 Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 Gas refrigerant pipe joint Refrigerant pipe flared 9 52 4 3 3 5 2 holes 10X21 REQUIRED SPACE Basically open 100mm or more without any obstruction in front and on both sides of the unit 350mm or more 200mm or more 100mm or more 100mm or more Open two sides of left right or rear side Drain hole 42 SUZ KA25 KA35VA OUTDOOR UNIT B 3...

Page 87: ...re 200mm or more if there are obstacles to both sides Open as a rule 500mm or more if the back both sides and top are open 350mm or more 100mm or more Service panel Gas refrigerant pipe joint Refrigerant pipe flared 12 7 SUZ KA50VA 15 88 SUZ KA60 KA71VA Liquid refrigerant pipe joint Refrigerant pipe flared 6 35 SUZ KA50 KA60VA 9 52 SUZ KA71VA REQUIRED SPACE OUTDOOR UNIT SUZ KA50VA Unit mm SUZ KA60...

Page 88: ...IT B 3 2 WIRING DIAGRAM SUZ KA25VA SUZ KA35VA OUTDOOR UNIT NOTES 1 About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing 2 Use copper conductors only For field wiring 3 Symbols below indicate Terminal block ...

Page 89: ... electric wiring 1 About the indoor side electric wiring NOTES SYMBOL NAME SYMBOL NAME SMOOTHING CAPACITOR FUSE T20AL 250V LEV EXPANSION VALVE COIL L61 REACTOR HC930 IPM INTELLIGENT POWER DEVICE C61 62 63 DIODE MODULE DB61 DB65 CT CURRENT TRANSFORMER F701 F801 F901 INTELLIGENT POWER MODULE F61 DSA SURGE ABSORBER FAN MOTOR CIRCUIT PROTECTION RT61 DISCHARGE TEMP THERMISTOR R937A B MF MC COMPRESSOR R...

Page 90: ...LLIGENT POWER MODULE CT61 FUSE T2AL 250V F64 CT1 2 CURRENT TRANSFORMER HC930 INTELLIGENT POWER MODULE F911 F801 FUSE T3 15AL 250V SMOOTHING CAPACITOR CB1 3 FAN MOTOR POWER FACTOR CONTROLLER NOISE FILTER RT61 DISCHARGE TEMP THERMISTOR RS1 4 RESISTOR R937A B RESISTOR MF MC COMPRESSOR R64A B RESISTOR PFC NF NR64 VARISTOR AMBIENT TEMP THERMISTOR SOLENOID COIL RELAY 21S4 REVERSING VALVE COIL X64 RELAY ...

Page 91: ...1 CN5 6 5 4 3 1 CN2 2 7 V MC W U V WHT RT61 RT62 RT68 LEV Terminal block Connector 3 Symbols below indicate 2 Use copper conductors only for field wiring diagram for servicing refer to the indoor unit electric wiring 1 About the indoor electric wiring NOTES SYMBOL NAME SYMBOL NAME CURRENT TRANSFORMER FUSE T1AL 250V LEV EXPANSION VALVE COIL L REACTOR IPM INTELLIGENT POWER MODULE HPS HIGH PRESSURE S...

Page 92: ...ube ø3 0 ø1 8 600 2 LEV Ambient temperature thermistor Muffler Capillary tube ø3 0 ø2 0 240 Outdoor heat exchanger temperature thermistor Muffler RT65 RT68 SUZ KA25VA OUTDOOR UNIT Unit mm Flared connection Defrost thermistor RT61 Discharge temperature thermistor RT62 Flared connection Stop valve with strainer Stop valve with service port Refrigerant flow in cooling Compressor 4 way valve Refrigera...

Page 93: ...mistor RT65 Strainer 100 Refrigerant flow in cooling Refrigerant flow in heating R V coil heating ON cooling OFF OUTDOOR UNIT Unit mm SUZ KA60VA Outdoor heat exchanger Flared connection Defrost thermistor RT61 Discharge temperature thermistor RT62 Flared connection Stop valve Stop valve with service port Capillary tube 3 6 2 4 50 Refrigerant flow in cooling Compressor 4 way valve Refrigerant flow ...

Page 94: ...h service port Capillary tube 3 6 x 2 4 x 50 Capillary tube 1 8 x 0 6 x 1000 Refrigerant flow in cooling Compressor 4 way valve Refrigerant flow in heating Refrigerant pipe 15 88 with heat insulator Refrigerant pipe 9 52 with heat insulator LEV R V coil heating ON cooling OFF Oil separator High pressure switch Strainer 100 Receiver Outdoor heat exchanger temperature thermistor RT68 Strainer 100 St...

Page 95: ...1 3 1 4 1 5 10 5 0 5 10 15 20 25 30 35 40 45 Outdoor intake air Dry bulb temperature Capacity correction factors 26 24 22 20 18 Outdoor intake air Dry bulb temperature Input correction factors Total input cooling 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 1 4 1 5 10 5 0 5 10 15 20 25 30 35 40 45 26 24 22 20 18 Indoor intake air Wet bulb temperature Indoor intake air Wet bulb temperature ...

Page 96: ...1 4 1 5 10 5 0 5 10 15 20 25 30 35 40 45 22 20 18 22 20 18 Cooling capacity Outdoor intake air Dry bulb temperature Outdoor intake air Dry bulb temperature Capacity correction factors Input correction factors Total input cooling 26 24 26 24 Indoor intake air Wet bulb temperature Indoor intake air Wet bulb temperature For the combination of outdoor unit SUZ KA35VA ...

Page 97: ...y bulb temperature Capacity correction factors Total input cooling 0 4 0 5 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 10 15 15 5 0 5 10 15 20 25 30 35 40 45 Outdoor intake air Dry bulb temperature Input correction factors 26 24 20 18 22 26 24 22 20 18 Indoor intake air Wet bulb temperature Indoor intake air Wet bulb temperature For the combination of outdoor unit SUZ KA50 60 71VA ...

Page 98: ...eating capacity Outdoor intake air Dry bulb temperature Capacity correction factors Total input cooling Outdoor intake air Dry bulb temperature Input correction factors 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 10 5 0 5 10 15 10 5 0 5 10 15 20 26 15 20 26 15 For the combination of outdoor unit SUZ KA25 35 50 60 71VA ...

Page 99: ...C 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE COOLING FUNCTION SPL dB A LINE FAN SPEED HEATING 47 48 Test conditions Cooling Dry bulb temperature 35 Wet bulb temperature 24 Heating Dry bulb temperature 7 Wet bulb temperature 6 OUTDOORUNIT MICROPHONE 1m High Med SUZ KA35VA COOLING FUNCTION SP...

Page 100: ...ing Coil frost prevention Heating High pressure protection Heating Defrosting Protection Protection Cooling High pressure protection Compressor LEV Outdoor fan motor 4 way valve Sensor Actuator 3 Relation between main sensor and actuator SUZ KA25VA SUZ KA35VA 2 R V coil control Heating ON Cooling OFF Dry OFF NOTE The 4 way valve reverses for 5 seconds right before start up of the compressor ON OFF...

Page 101: ...ful to the residual voltage of smoothing capacitor 4 When removing the electronic control P C board hold the edge of the board with care NOT to apply stress on the components 5 When connecting or disconnecting the connectors hold the housing of the connector DO NOT pull the lead wires 1 3 Troubleshooting procedure 1 First check if the OPERATION INDICATOR lamp is blinking on and off to indicate an ...

Page 102: ...s Repair the defective parts Release the failure mode recall function by the following procedures With the remote controller headed towards the indoor unit press any button that is not used in this failure mode recall function e g TIMER button OR Turn OFF the power supply and turn ON it again Press RESET button of the remote controller Judgment of indoor outdoor abnormality 1 Press OPERATE STOP ON...

Page 103: ...transmission error Output pattern B Errors detected by unit other than indoor unit outdoor unit etc Check code Symptom Remark 1 E9 Indoor outdoor unit communication error Transmitting error Outdoor unit 2 UP Compressor overcurrent interruption 3 U3 U4 Open short of outdoor unit thermistors 4 UF Compressor overcurrent interruption When compressor locked 5 U2 Abnormal high discharging temperature 49...

Page 104: ...ture of fin temperature thermistor on the inverter P C board exceeds 75 80 C or temperature of P C board temperature thermistor on the inverter P C board exceeds 70 75 C Check around outdoor unit Check outdoor unit air passage Outdoor fan motor Outdoor fan has stopped 3 times in a row within 30 seconds after outdoor fan start up Check of outdoor fan motor Check of inverter P C board Nonvolatile me...

Page 105: ...r during operation or when an open circuit is detected in the thermistor after 5 minutes in cooling and 10 minutes in heating of compressor start up When nonvolatile memory data cannot be read properly unit stops When the communication between boards protection stop is continuously performed twice Communication error occurs between the electronic control P C board and power board for more than 10 ...

Page 106: ...s 70 in HEAT mode When the outdoor heat exchanger thermistor exceeds 70 in COOL mode When the frequency of the compressor is kept 80Hz or more and discharge temperature is kept under 39 for more than 20 minutes When outdoor fan has stopped within 30 seconds 3 times in a row after outdoor fan start up unit stops When IPM protection stop or lock protection stop is continuously performed 3 times with...

Page 107: ...ing h K h F 3 The horizontal earthquake forces for designing W 9 8 294 0 N v K v F 4 The vertical earthquake forces for designing W 9 8 147 0 N 5 The withdrawal strength of the anchor bolt 72 4 N N 73 5 N h F Q 6 The shear forces of the anchor bolt 7 The stress arising to the anchor bolt 1 The tensile stress Rb A 0 9 MPa ft 176 4 MPa 2 The shearing stress Q A 0 9 MPa fs 132 3 MPa 3 The stress when...

Page 108: ...oefficient for designing h K h F 3 The horizontal earthquake forces for designing W 9 8 323 4 N v K v F 4 The vertical earthquake forces for designing W 9 8 161 7 N 5 The withdrawal strength of the anchor bolt 79 6 N N 80 9 N h F Q 6 The shear forces of the anchor bolt 7 The stress arising to the anchor bolt 1 The tensile stress Rb A 1 0 MPa ft 176 4 MPa 2 The shearing stress Q A 1 0 MPa fs 132 3 ...

Page 109: ...ic coefficient for designing h K h F 3 The horizontal earthquake forces for designing W 9 8 519 4 N v K v F 4 The vertical earthquake forces for designing W 9 8 259 7 N 5 The withdrawal strength of the anchor bolt 185 8 N N 9 9 2 1 N h F Q 6 The shear forces of the anchor bolt 7 The stress arising to the anchor bolt 1 The tensile stress Rb A 2 4 MPa ft 176 4 MPa 2 The shearing stress Q A 1 7 MPa f...

Page 110: ...fficient for designing h K h F 3 The horizontal earthquake forces for designing W 9 8 568 4 N v K v F 4 The vertical earthquake forces for designing W 9 8 284 2 N 5 The withdrawal strength of the anchor bolt 203 3 N N 1 2 4 1 N h F Q 6 The shear forces of the anchor bolt 7 The stress arising to the anchor bolt 1 The tensile stress Rb A 2 6 MPa ft 176 4MPa 2 The shearing stress Q A 1 8 MPa fs 132 3...

Page 111: ...io of capacity according to the length of piping cooling Correction ratio of capacity according to the length of piping heating Actual length of refrigerant piping m Ratio of capacity Ratio of capacity The length intended for the capacity calculation which counts the length of refrigerant piping and the number of bends is called actual length Length of refrigerant piping m Number of bends 0 3 m Ac...

Page 112: ...e panel in the outdoor unit are not attached securely it could result in a fire or an electric shock due to dust water etc Be sure to use the part provided or specified parts for the installation work The use of defective parts could cause an injury or leakage of water due to a fire an electric shock the unit falling etc Ventilate the room if refrigerant leaks during operation If the refrigerant c...

Page 113: ...or more without any obstruction in front and on both sides of the unit 200 mm or more Open two sides of left right or rear side SUZ KA50 KA60 KA71VA 100 mm or more 350 mm or more 500 mm or more When the piping is to be attached to a wall containing metals tin plated or metal netting use a chemically treated wooden piece 20 mm or thicker between the wall and the piping or wrap 7 to 8 turns of insul...

Page 114: ...71 max 30 m max 30 m max of 10 Height difference limitations are binding regardless of which unit indoor or outdoor is positioned higher Refrigerant adjustment If pipe length exceeds 7 m additional refrigerant R410A charge is required The outdoor unit is charged with refrigerant for pipe length up to 7 m Up to 7 m No additional charge is required Pipe length Exceeding 7 m Additional charge is requ...

Page 115: ...r and the outdoor units Remove the service port cap of the stop valve on the side of the outdoor unit gas pipe The stop valve will not work in its initial state fresh out of the factory totally closed with cap on Connect the gage manifold valve and the vacuum pump to the service port of the stop valve on the gas pipe side of the outdoor unit Run the vacuum pump Vacuumize for more than 15 minutes C...

Page 116: ... clamp Fig 6 1 Indoor unit Outdoor unit Wired main switch fuse Ground For Power supply Connect cable from the indoor unit correctly on the terminal block Use the same terminal block and polarity as is used with the indoor unit For aftercare maintenance give extra length to connecting cable Both end of connecting cable extension wire are to be peeled off When too long or connected by cutting off th...

Page 117: ...ce port Fig 7 1 Warning There is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line Therefore please turn off the main power supply when servicing And do not touch the S1 S2 S3 terminals when the power is energized If isolator should be used between indoor unit and outdoor unit please use ...

Page 118: ...OUTDOOR UNIT B 118 INSTALLATION PROCEDURE S series OUTDOOR UNIT ...

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