Mitsubishi SCM80ZA Manual Download Page 15

Page: 15 / 65

Model SKM50ZA

Unit: mm

Models

SKM32ZA, 40ZA

790

780

VIEW A

760

170

450

170

Room temp. thermistor

Terminal block

Piping for Gas
(

12.7) 390

Piping for Liquid (

6.35) 440

Drain hose 600 (

16)

Piping hole

(

65)

Piping hole

(

65)

Piping hole right (left)

Unit: mm

174

275

187.5

260

117

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Summary of Contents for SCM80ZA

Page 1: ...INVERTER MULTI SPLIT SYSTEM ROOM AIR CONDITIONER 4 room Air to air heat pump type OUTDOOR UNIT SCM80ZA INDOOR UNIT SKM22ZA SRRM40ZA SKM25ZA SKM28ZA SKM32ZA SKM40ZA SKM50ZA 51 http splitoff ru tehn doc...

Page 2: ...wiring 70 3 4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER 73 3 5 APPLICATION DATA 86 3 5 1 Installation of indoor unit 87 3 5 2 Installation of remote controller 91 3 5 3 Installation of outdoor uni...

Page 3: ...r unit fans controlled to changes in frequency thus controlling the power Allowing quick heating cooling operation during start up period Constant room temperature by fine tuned control after the unit...

Page 4: ...TIMER Yellow Safety equipment O D mm in 6 35 1 4 9 52 3 8 Connecting method Flare connecting Attached length of piping Liquid line 0 4m Gas line 0 35m Insulation Necessary Both Liquid Gas lines Drain...

Page 5: ...ol M C thermostat Pilot lamp RUN Green TIMER Yellow Safety equipment O D mm in 6 35 1 4 12 7 1 2 Connecting method Flare connecting Attached length of piping Liquid line 0 4m Gas line 0 35m Insulation...

Page 6: ...reen TIMER Yellow Safety equipment O D mm in 6 35 1 4 12 7 1 2 Connecting method Flare connecting Attached length of piping Insulation Necessary Both Liquid Gas lines Drain hose Connectable Accessorie...

Page 7: ...Size Core Number mm in Liquid line 6 35 1 4 4 Gas line 9 52 3 8 2 12 7 1 2 2 Connecting method Flare connecting Attached length piping Insulation Necessary Both Liquid Gas lines Power source supply Te...

Page 8: ...0 5 10 2 10 3 10 4 10 5 10 3 10 4 10 6 750 750 850 850 1050 1050 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1250 1750 1750 1750 1750 1750 1750...

Page 9: ...0 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 3170 3160 3220 3210 3210 3190 3180 3210 3200 3190 3170 3190 3180 3160 3170 3150 3200 3200 3180 3170 3190 318...

Page 10: ...8 32 40 50 22 22 22 25 22 28 22 32 22 40 22 50 25 25 25 28 25 32 25 40 25 50 28 28 28 32 28 40 28 50 32 32 32 40 32 50 40 40 40 50 50 50 Indoor unit combination Heating capacity kW Power consumption W...

Page 11: ...750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 1750 2580 2700 2810 2970 3040 3100 2810 2930 3000 3060 3120 3000 3020 3080 3140 3040 3100 3160 3160 3220 2930 3000 3020 3080 3140 3020 3040 3...

Page 12: ...00 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 2100 3060 3080 3100 3120 3180 3240 3100 3120 3140 3200 3270 3140 3160 3220 3200 3240 3120 3140 3160 3220 31...

Page 13: ...ltage fluctuation Voltage drop during start Interval unbalance Difference in height between indoor units C Within 3 of rated voltage Within 15 of rated voltage Within 10 of rated voltage 3 min or more...

Page 14: ...hole 65 Piping hole 65 Piping hole right left 178 3 250 46 15 19 9 236 5 4 5 36 117 40 37 36 56 9 49 Unit mm A 790 15 67 51 60 62 18 16 780 VIEW A 15 760 170 450 170 Room temp thermistor Terminal bloc...

Page 15: ...80 VIEW A 15 760 170 450 170 Room temp thermistor Terminal block Piping for Gas 12 7 390 Piping for Liquid 6 35 440 Drain hose 600 16 Piping hole 65 Piping hole 65 Piping hole right left Unit mm 174 3...

Page 16: ...0 50 170 20 40 320 35 670 Suspension bolts pitch 740 35 107 Suspension bolts M8 4 Procured by customer Controller 243 30 30 515 Suspension bolts pitch 455 60 16 117 150 230 Air outlet Terminal block I...

Page 17: ...st the unit direct the discharge port at a right angle to the wind direction 4 Secure the space of 1 m and over at the top of unit 5 Make the height of obstruction wall in front of discharge port lowe...

Page 18: ...Heating Cooling Thermistor Th I R Thermistor Th I A EVA EVD EVC EVB Strainer Discharge Suction Thermistor Th O D Accumlator Service valve Liquid Electronic expansion valve Compressor Check joint Muffl...

Page 19: ...ating In additions to the foregoing corrections 1 2 the heating capacity needs to be adjusted also with respect to the frosting on the outdoor heat exchanger 15 ISO T1 Standard Condition Outdoor air W...

Page 20: ...Red White Purple Yellow Green BK BL GR Y RD WH PP Y GN Color symbol S ZNR CFI CNC CNB TR FMI Q CNM CNE CND CNG Display Wireless R Amp Back up switch Printed circuit board ThI A ThI R FMI SM COM CNU C...

Page 21: ...Green BK BL Y RD WH Y GN Color symbol Model SRRM40ZA F 250V 3 15A 1 2 3 Y GN Power line Outdoor unit BK WH RD J S R CNB CNC Tr RD COMI ULo Lo Me CF FS CFI CNH CNI Hi FMI DM OR WH RD BL BR BK RD BK 52...

Page 22: ...CM C Y Y Y S 2 GR OR Y RD RD BK BK 6 1 2 0 4 1 RD BL P N W V U RD Power transistor BK BL WH P 2 N 2 WH RD CNC CNB CNN CNL CNK CNM CND PCB POWER TRANSISTOR Mark Color mark Color CNN CNL CNK CNM LED 1 A...

Page 23: ...ER operation ECONOMY operation indicator Indicators during ECONOMY operation Operation switch over indicator Indicators the for the operation which has been set AIR FLOW indicator Indicator selected f...

Page 24: ...F ON OFF button RUN HI POWER ECONO TIMER ECONOMY lamp orange HI POWER lamp green RUN HOT KEEP lamp green TIMER lamp yellow Illuminates during operation Flashing at stop blowing due to the hot keep Ill...

Page 25: ...In case of heating t operation Horizontal blowing Slant forward blowing 2 When not operating The flap returns to the position of air flow directly below when operation has stopped SKM50 model s In ca...

Page 26: ...o mode 3 During the pleasant reservation operation both the operation lamp and timer lamp illuminate and the timer lamp goes off after expiration of the timer ON setting time If the difference Setting...

Page 27: ...s OFF According to stop mode According to mode switching OFF 0 Thermostat off units ON All closed Thermostat off units According to decision frequency According to mode switching OFF All closed Stop a...

Page 28: ...dby operation is activated i Operating conditions 1 When 4 seconds have passed since the power was turned on 2 Under the following conditions a When the temperature detected by the outdoor air tempera...

Page 29: ...iii Finishing conditions When at least one of the hot stand by cut conditions described below is met during the hot stand by function is activated the hot stand by function becomes inoperable 1 When...

Page 30: ...fer to the table shown above right for the values a and b Indoor heat exchanger temp C 1st speed Indoor blower Indoor heat exchanger temp C 2nd speed 3rd speed 4th speed 5th speed 6th speed 7th speed...

Page 31: ...eaches 10 times or more and when all the conditions presented above in a b and d are met 2 During defrosting acceleration a When 30 minutes has passed since the last defrosting Cumulative actual opera...

Page 32: ...for 30 seconds under the outdoor unit s frequency of 34Hz and then it is operated in accordance with the decision frequency 3 Delay of compressor start If the compressor inverter is stopped by the op...

Page 33: ...is ended g Inching protection control 1 When the detected outdoor air temperature detected by Tho A before the compressor stop is 22 C or less for the cooling operation and 0 C or less for the heating...

Page 34: ...our At the same time LED 5 on the printed circuit board for the outdoor unit will flash 4 times at a 0 5 second interval every 8 seconds The timer lamp on the indoor unit will flash 4 times Set value...

Page 35: ...200 Pulse 2 minutes 25seconds 200 Pulse 200 Pulse 200 Pulse 200 Pulse 200 Pulse 200 Pulse 200 Pulse 55 seconds Operated successively n Serial transmission abnormality protection An abnormal stop is ma...

Page 36: ...are used Insufficient power source circuit capacity and defective installment execution can be the cause of electric shocks and fires Accurately connect wiring using the proper cable and insure that t...

Page 37: ...n of indoor unit 1 Fixing of installation Board 450 Level surface matching mark Unit mm Installation Space Indoor Unit Models SKM22 25 models Models SKM28 32 40 models Indoor unit Front View Installat...

Page 38: ...of the pipe and change its direction before stretching it and shaping it 4 Shaping the pipe and drain hose Shaping the pipe Taping of the exterior a Remove the lid b Remove the terminal block cover c...

Page 39: ...following illustrations Pour water in the drain pan below the heat exchanger and confirm that the water is drained outside If the extension drain hose is indoors make sure it is insulated using a shie...

Page 40: ...ed in combination with a separately sold compo nent also refer to the installation procedures for that component See page 98 a Caution for installation The safety precautions for installation are the...

Page 41: ...dy regularly Fit the poles with the indication marks without fail 2 Fixing to pillar or wall a Conventionally operate the remote control switch by hold ing in your hand b In the case of stationary ope...

Page 42: ...trong winds Notes 1 A square wall is not permissible If the wall is taller than 2m or if there is extra wall space over the unit please allow more space than listed in the above table 2 When installin...

Page 43: ...tenance depressurizing charging the refrigerant operating the protective function Remove the screws and pull the panel towards the direction of the arrow 2 Service valve cover Remove the screws and pu...

Page 44: ...ssible length of the refrigerant pipes for the outdoor units and the maximum permissible height difference for the outdoor units are as shown below If the total length for all the rooms exceeds the le...

Page 45: ...c Conduct air purging for all connected indoor units Remove the flare nut from both liquid and gas sides Remove the flare nut from both liquid and gas sides Fit the removed flare nut to the joint pipe...

Page 46: ...e Lo for the manifold valve and pump a vacuum for 15 minutes Ensure that the meter is indicating 0 1 MPa 76cmHg 4 After vacuuming fully open the operational valve both liquid and gas sides with a hexa...

Page 47: ...on cannot be achieved and may damage the compressor Correct connections Example of wrong connections A unit A B C D B unit C unit D unit Outdoor unit Indoor unit Indoor unit Piping Wiring A unit A B C...

Page 48: ...utlet duct RFD12 1 Flexible duct 150 S97684 4 m S98223 3 m S97683 2 m S97682 1 m 5 Air outlet grille for suspended ceiling RKB12 2 Duct joint for air outlet plate RFJ22 6 Bottom air inlet grille set R...

Page 49: ...ting wire for louver motor and the wire for wireless receiver provided with the indoor unit to the positions on the indoor unit shown at the right and secure with clamp Notes When receiver unit is mou...

Page 50: ...hardware provided with the indoor unit so that it is on the right side of the air outlet grille and secure it with the countersunk screws provided with the indoor unit 2 Secure the air outlet grille...

Page 51: ...he height dimension on the installation dia gram allows for adjustment within range of 80 to 100 mm If the pan head screws are completely tightened the height will be 80 mm 4 Air outlet unit for ceili...

Page 52: ...time make sure there are no gaps between the air outlet chamber and the air outlet panel Note 1 If the outer covering of the flexible duct breaks it can be repaired with tape or other such material Es...

Page 53: ...tapping screws to mount the duct joint to the front of the indoor unit Use care to prevent gaps from forming at the joining surfaces with the indoor unit Use insulation at the connecting areas between...

Page 54: ...3 Air flow m3 min 4 5 6 Pressure loss Pa mm Aq 50 5 40 4 20 2 10 1 30 3 Air flow m3 min Pressure loss Pa mm Aq 2 3 4 5 6 7 8 9 10 30 3 20 2 10 1 0 11 1 1 10 1 0 9 0 9 8 0 8 7 0 7 6 0 6 5 0 5 4 0 4 3...

Page 55: ...red and blace respectively Note that the control s connector for the float switch is already connected to the inside unit s con nector for the float switch so disconnect them and connect it to the dr...

Page 56: ...n gradient of 1 100 or more and take care not to make a trap or uphill pass 7 When connecting the drain pipe take care not to apply force on the pipe of the unit and clamp the pipe as close as possibl...

Page 57: ...the power source and turn it on again in about 1 min and turn the unit on again YES NO YES YES Does the trouble occur again Disconnect connectors and connect them again Operate the unit again after co...

Page 58: ...temperature of 50 C or under continued for more than 3 seconds while operation is stopped This is not displayed during oper ation When the input current of 1 A or less is de tected for 30 continuous s...

Page 59: ...hermistor temperature characteristics Room temp indoor and outdoor unit heat exchanger temp outdoor temp Discharge pipe thermistor temperature characteristics Temperature C Shortcircuit Broken wire Re...

Page 60: ...t compressor Defective inverter YES YES NO NO YES Power transistor overheat Poor cooling Secure space for inlet and outlet Inspect outdoor fan motor Is outdoor fan motor operating properly Is there an...

Page 61: ...ent Drain motor is defective Inspect wiring Is there output for drain motor driver YES YES YES YES NO NO NO NO Note 1 Drain pump is an option Defrosting is performed for 10 minutes at approx 30 minute...

Page 62: ...nted circuit board Is the fuse burnt out 3 15 A YES YES YES YES NO NO NO NO 5 How to make sure of remote controller Is remote controller normal YES Again pushing operating switch Operating the unit NO...

Page 63: ...condenser good Fuse is defective e Replace The diode stack is defective e Replace Condenser is defective e Replace The printed circuit board POWER is defective e Replace The Printed circuit board POWE...

Page 64: ...d on Display lamp inspection LED 5 Abnormality display lamp Red LED 1 to 4 Light display for each room Green ON or flashing Protection function operating ON when there is a serial signal being receive...

Page 65: ...e the connecting portion of the charge hose A at the gauge manihold side and open the valve 3 for a few seconds and then immediately retighten it after observing that gas is blow out from the loosened...

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