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OB254-1.qxp 03.1.16 4:33 PM Page 1
SPLIT-TYPE, HEAT PUMP AIR CONDITIONER
Revision:
E2
• MXZ-32SV - has been added.
• Please void OB254.
No. OB254
REVISED EDITION-A
SERVICE MANUAL
Inverter-controlled multi system
Model
E1
MXZ-32SV -
E2
MXZ-32SV -
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························3
4. INDOOR UNITS COMBINATION ·······················4
5. SPECI
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OB254-1.qxp 03.1.16 4:33 PM Page 2 1 TECHNICAL CHANGES E1 E1 MXZ-32RV - MXZ-32SV - 1. The combination pattern of the indoor unit has increased. 2. Crankcase heater has disused. 3. Refrigerant circuit has changed. • Disuse of 2-way valve. • Disuse of capillary tube [3 o [2 o 500. • Disuse of low pressure switch. • Disuse of suction pipe temperature thermistor. E1 E2 MXZ-32SV - MXZ-32SV - 1. Combinations of the connectable indoor units have increased. 2. Noise filter P.C. board has changed
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OB254-1.qxp 03.1.16 4:33 PM Page 3 3 INDOOR / OUTDOOR CORRESPONDENCE TABLE NOTE: SLH-1AR is equivalent to class 09 (9000BTU). MCFH-13NV, SEH-1.6AR, SLH-1.6AR is equivalent to class 12 (12000BTU). MCFH-18NV, SEH-2AR,SLH-2AR is equivalent to class 18 (18000BTU). OUTDOOR UNIT MXZ-32SV- E1 , MXZ-32SV- E2 07+07 07+09 07+12 07+18 09+09 09+12 09+18 12+12 12+18 18+18 07+07+07 07+07+09 07+07+12 07+07+18 07+09+09 07+09+12 07+09+18 07+12+12 07+12+18 07+18+18 09+09+09 09+09+12 09+09+18 09+12+12 09+12+1
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OB254-1.qxp 03.1.16 4:33 PM Page 4 4 INDOOR UNITS COMBINATION E1 , E2 MXZ-32SV - MXZ-32SV - NOTE: Electrical data is for outdoor unit only. Cooling capacity (kW) Outdoor unit Current Power Indoor units power consumption (A) factor combination Unit A Unit B Unit C Unit D Total (kW) (%) 220V 240V 2.2 0.75 07 2.2 - - - 3.79 3.47 90 (0.9-2.7) (0.26-0.93) 2.8 0.90 09 2.8 - - - 4.55 4.17 90 (0.9-3.2) (0.26-1.04) 4.0 1.44 12 4.0 - - - 7.27 6.67 90 (0.9-4.5) (0.26-1.70) 5.0 2.30 18 5.0 - - - 11.62
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OB254-1.qxp 03.1.16 4:33 PM Page 5 NOTE: Electrical data is for outdoor unit only. Cooling capacity (kW) Outdoor unit Current Power Indoor units power consumption (A) factor combination Unit A Unit B Unit C Unit D Total (kW) (%) 220V 240V 8.0 2.98 09+09+09 2.67 2.67 2.67 - 15.05 13.80 90 (2.4-9.0) (0.70-4.27) 8.0 2.98 09+09+12 2.3 2.3 3.4 - 15.05 13.80 90 (2.4-9.0) (0.70-4.27) 8.0 2.98 09+09+18 2.1 2.1 3.8 - 15.05 13.80 90 (2.4-9.0) (0.70-4.27) 8.0 2.98 09+12+12 2.0 3.0 3.0 - 15.05 13.80 90 (2
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OB254-1.qxp 03.1.16 4:33 PM Page 6 NOTE: Electrical data is for outdoor unit only. Heating capacity (kW) Outdoor unit Current Power Indoor units power consumption (A) factor combination Unit A Unit B Unit C Unit D Total (kW) (%) 220V 240V 3.2 1.13 07 3.2 - - - 5.71 5.23 90 (0.9-4.1) (0.27-1.60) 4.0 1.32 09 4.0 - - - 6.67 6.11 90 (0.9-4.8) (0.27-1.70) 6.0 1.91 12 6.0 - - - 9.65 8.84 90 (0.9-7.2) (0.27-2.57) 7.1 2.30 18 7.1 - - - 11.62 10.65 90 (0.9-7.8) (0.27-2.83) 6.4 1.93 07+07 3.2 3.2 - - 9.
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OB254-1.qxp 03.1.16 4:33 PM Page 7 NOTE: Electrical data is for outdoor unit only. Heating capacity (kW) Outdoor unit Current Power Indoor units power consumption (A) factor combination Unit A Unit B Unit C Unit D Total (kW) (%) 220V 240V 9.3 2.78 09+09+09 3.1 3.1 3.1 - 14.04 12.87 90 (2.1-11.6) (0.52-3.50) 9.3 2.78 09+09+12 2.65 2.65 4.0 - 14.04 12.87 90 (2.1-11.6) (0.52-3.50) 9.3 2.78 09+09+18 2.45 2.45 4.4 - 14.04 12.87 90 (2.1-11.6) (0.52-3.50) 9.3 2.78 09+12+12 2.3 3.5 3.5 - 14.04 12.87 9
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OB254-1.qxp 03.1.16 4:33 PM Page 8 5 SPECIFICATION E1 E2 , Outdoor model MXZ-32SV - MXZ-32SV - Single phase Outdoor unit power supply 220-240V,50Hz Indoor units number 2 to 4 Indoor units total capacity (Connectable) Total model name 42 indoor units total capacity (Simultaneous operation) Total model name 42 Piping total length Max. 60 Connecting pipe length Max. 25 Height difference (Indoor ~ Outdoor) 10 Height difference (Indoor ~ Indoor) 10 Cooling Heating Function 8.0 (0.9~9.0)
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OB254-1.qxp 03.1.16 4:33 PM Page 9 6 NOISE CRITERIA CURVES SPL(dB(A)) LINE NOTCH COOL(220V) 45 COOL(240V) 47 HEAT(220V) 46 HEAT(240V) 48 E1 MXZ-32SV - Test conditions. Cooling :DB35: WB24:
MXZ-32SV - E2 Heating :DB 7: WB 6: 90 80 70 NC-70 60 NC-60 50 NC-50 40 NC-40 30 NC-30 APPROXIMATE 20 TERESHOLD OF HEARING FOR NC-20 CONTINUOUS NOISE 10 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz 9 OCTAVE BAND SOUND PRESSURE LEVEL, 0dB = 0.0002 MICRO BAR
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More than 500 More than 100 387 900 531.3 (16) 355 (16) 480.8 27 40 350.0 50 460 More than More than 33 200 500 23 More than 500 Base bollt length Less than 25 OB254-1.qxp 03.1.16 4:33 PM Page 10 7 OUTLINES AND DIMENSIONS Unit: mm OUTDOOR UNIT E1 MXZ-32SV - E2 MXZ-32SV - 2-U-shape notched holes (Base bolt M10) 200 500 200 Rubber cushion Air in Veranda Base Air in Air out 2-12 5 36 Oval hole (Base bolt M10) 9.52 (flared) 3/8 (C , D unit) [ 10 320 35 900 12.7 (flared) 1/2 (A , B uni
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21 21 CN553 CN553 123 4 CN704 1 2 3 45 67 123 4 CN704 1 2 3 45 67 CN801 CN705 CN801 CN705 OB254-1.qxp 03.1.16 4:33 PM Page 11 8 WIRING DIAGRAM OUTDOOR UNIT E1 MODELS MXZ-32SV- BRN GRY DS62 DS61 C61 C63 C62 L RED ORN A RED BLK + ORN + + RED + K YLW WHT BLK - - - - BLK WHT YLW YLW REDR BLK TB4 CT NOISE FILTER X64 4 6 BLK 61 GRN/YLW P.C.BOARD POWER SUPPLY V 63H2 ~/N 220-240V X64 TB2 50Hz 0 1 PE MC ORN L61 L BLK LD62 UW 2 ORN N BLU LD61 F911 RELAY P.C. BOARD CIRCUIT BRAKER LDE TAB64 (1A) T801 C
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OB254-1.qxp 03.1.16 4:33 PM Page 12 9 REFRIGERANT SYSTEM DIAGRAM E1 MXZ-32SV - Unit:mm [16 Compressor E2 MXZ-32SV - High pressure Discharge switch 1 Refrigerant flow in cooling temperature High pressure Refrigerant flow in heating thermistor switch 2 Capillary tube Reversing valve coil Accumulator Oil Unit D gas pipe temperature thermistor heating ON separator [2.55 [0.65 1000 [9.52 cooling OFF Indoor unit D Ball valve with service port Unit C gas pipe temperature thermistor [9.52 Indoor uni
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OB254-1.qxp 03.1.16 4:33 PM Page 13 PERFORMANCE CURVES 10 The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions, since operating conditions vary according to the areas where these units are installed. The following information has been pro- vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve. (1) GUARANTEED VOLTAGE 198 ~ 264V (2) AIR FLOW Air flow s
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OB254-1.qxp 03.1.16 4:33 PM Page 14 10-3-.2.Capacity and input correction by inverter output frequency (OUTDOOR UNIT:MXZ-32SV) The dotted line on graphs connects the frequency range in normal operation shown by the full line and the frequency in test run shown by the point. 1. 07-class unit in single operation Capacity Total input Capacity Total input 1.5 2.0 1.5 1.5 1.5 1.0 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0 50 100 150 Hz 0 50 100 150 Hz 0 50 100 150 Hz 0 50 100 150 Hz Fr
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OB254-1.qxp 03.1.16 4:33 PM Page 15 10-3-4.Outdoor low pressure and outdoor unit current 1. 07-class unit in single operation NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. f f 1(MPa • G) =10.2(kgf/ • G) (1) COOL operation 1Both indoor and outdoor units are under the same temperature/humidity con
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OB254-1.qxp 03.1.16 4:33 PM Page 16 2. 09-class unit in single operation NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. 1(MPa • G) =10.2(kgf/f f • G) (1) COOL operation 1Both indoor and outdoor units are under the same temperature/humidity condition. 1.Set emergency switch to COOL or HEAT.The swi
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OB254-1.qxp 03.1.16 4:33 PM Page 17 3. 12-class unit in single operation NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. 1(MPa • G) =10.2(kgf/f f • G) (1) COOL operation 1Both indoor and outdoor units are under the same temperature/humidity condition. 1.Set emergency switch to COOL or HEAT.The swit
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OB254-1.qxp 03.1.16 4:33 PM Page 18 4. 18-class unit in single operation NOTE:The unit of pressure has been changed to MPa on the international system of units(SI unit system). The converted score against the traditional unit system can be gotten according to the formula below. 1(MPa • G) =10.2(kgf/f f • G) (1) COOL operation ‹ Both indoor and outdoor units are under the same temperature/humidity condition. 1.Set emergency switch to COOL or HEAT.The swi
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OB254-1.qxp 03.1.16 4:33 PM Page 19 11 MICROPROCESSOR CONTROL INVERTER MULTI SYSTEM CONTROL E1 MXZ-32SV - E2 MXZ-32SV - Output signal Input signal Compressor Compressor Compressor power primary secondary factor current current Indoor unit microprocessor Outdoor unit control microprocessor Drive SSR61 circuit Transistor module Fin temperature thermistor RT65 Accumulator Comp. H.P.S 63H2 Discharge x 61 temperature x 62 thermistor x 63 RT61 H.P.S 63H1 Indoor Unit D R. V. coil Indoor Unit
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OB254-1.qxp 03.1.16 4:33 PM Page 20 11-1.LEV control Linear expansion valve (LEV) is controlled by "Thermostat ON" commands given from each unit. Indoor unit status LEV opening Stop of all indoor unit Opening before stop 500 pulse in 15 minutes When outdoor unit is operating, COOL : 5 pulse (full closed) some indoor unit stops and HEAT : 59 pulse (slightly opened) some operates. When the outdoor unit operation (When the other indoor unit operate): 5 pulse. Thermostat OFF in When outdoor u
