Mitsubishi Electronics MXZ-32SV service manual Refrigerant System Diagram, Unitmm

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Indoor unit D

9

REFRIGERANT SYSTEM DIAGRAM

MXZ-32SV - E1

MXZ-32SV -

 

 

Compressor

E2

 

 

 

High pressure

Discharge

 

 

 

switch 1

 

 

 

 

 

temperature

 

 

 

High pressure

 

 

 

thermistor

 

 

 

switch 2

 

 

 

 

 

Capillary tube

 

 

 

 

Oil

 

Unit D gas pipe temperature thermistor

 

 

separator

[2.5[0.61000

Indoor unit

[9.52

 

 

 

 

 

D

 

 

 

Ball valve with

 

 

Unit C gas pipe temperature thermistor

service port

 

Indoor unit

[9.52

 

Reversing valve

 

 

 

 

CUnit B gas pipe temperature thermistor [12

[16

Unit:mm

 

 

Refrigerant flow in cooling

 

Refrigerant flow in heating

Accumulator

Reversing valve coil

 

heating ON

 

cooling OFF

Indoor unit

 

 

 

 

[16

[16

 

B

Unit A gas pipe

 

 

 

 

 

 

 

 

 

 

 

 

temperature thermistor

 

 

 

 

 

Indoor unit

 

[12

 

 

 

Evaporation

 

 

 

 

 

 

 

A

 

 

 

 

 

temperature

 

 

 

 

 

 

 

thermistor

Outdoor

 

 

 

 

 

 

(RT67)

heat

 

 

Capillary tube

 

 

 

 

exchanger

 

 

 

 

 

 

 

Indoor unit

[3.0[2.0200

 

 

 

 

 

 

 

 

 

Ball valve with

 

 

A

Strainer

Capillary tube

LEV

[6

Capillary tube

 

 

service port

[2.5[0.6750

 

 

[3.0[2.0200

 

 

 

 

Indoor unit

 

 

 

 

Capillary tube

 

 

 

 

 

Defrost

B

Strainer

Capillary tube

 

[6

 

[4.0[2.4400

 

LEV

 

thermistor

 

[3.0[2.0200

 

 

 

Indoor unit

 

 

 

 

 

 

 

 

 

 

 

 

C

Strainer

Capillary tube

LEV

[6

Distributor

Strainer

Distributor

 

Indoor unit

[3.0[2.0200

 

 

 

[9.52

 

 

 

 

 

 

 

 

D

Strainer

 

LEV

[6

 

Strainer

 

 

 

 

 

 

 

 

 

 

 

Indoor

a

 

 

 

units

 

 

 

 

 

b

Outdoor

 

 

 

 

unit

H

 

 

 

 

Piping length each indoor unit (a, b, c, d)

25m

 

 

 

Total piping length (a+b+c+d)

60m

c

 

 

Height difference between units (H)

10m

 

 

 

 

 

Bending point for each unit

25

 

 

H

Total bending point

60

 

 

d

 

 

 

 

 

 

It does not matter which unit is higher.

H

Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes,refer to the tables below.

When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Different-diameter pipe.

For further information on Different-diameter pipe,see page BACK COVER.

 

 

Unit : mm (inch)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor unit

Extension pipe diameter

 

 

Outdoor unit union diameter

 

 

 

 

 

 

 

 

 

class

 

Pipe diameter

 

 

For

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

07/09

Liquid

 

6.35(1/4)

Liquid

6.35(1/4)

 

 

Indoor unit A

Liquid

6.35(1/4)

 

 

 

 

 

 

 

 

 

Gas

 

9.52(3/8)

Gas

9.52(3/8)

 

 

Gas

12.7(1/2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12(13)

Liquid

 

6.35(1/4)

Liquid

6.35(1/4)

 

 

Indoor unit B

Liquid

6.35(1/4)

 

 

 

 

 

 

 

 

 

Gas

 

12.7(1/2)

Gas

12.7(1/2)

 

 

Gas

12.7(1/2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

Liquid

 

6.35(1/4)

Liquid

6.35(1/4)

 

 

Indoor unit C

Liquid

6.35(1/4)

 

 

 

 

 

 

 

 

 

Gas

 

15.88(5/8)

Gas

15.88(5/8)

 

 

Gas

9.52(3/8)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liquid

6.35(1/4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gas

9.52(3/8)

 

 

 

 

 

 

 

 

 

 

 

Image 12
Contents Contents MXZ-32SV E1 MXZ-32SV E2Technical Changes Part Names and FunctionsOutdoor Unit Indoor / Outdoor Correspondence Table Outdoor UnitIndoor Units Combination MXZ-32SV E1 , MXZ-32SV E209+09+12 15.05 13.80 9.0 07+09 10.35 09+09+12 14.04 12.87 Specification MXZ-32SV E1 , MXZ-32SV E2 Test conditions Cooling DB35 WB24 Heating DB 0dB =Outlines and Dimensions Unit mmWiring Diagram Models MXZ-32SV- E1Refrigerant System Diagram UnitmmCapacity and the Input Curves CWBCDB Capacity and input correction by inverter output frequency Outdoor UNITMXZ-32SVOutdoor low pressure and outdoor unit current Heat operationCurrent 10 15 20 10 15 20 Microprocessor Control Inverter Multi System ControlSSR61 LEV control Cool DRY Heat Operational frequency range DRY CoolDischarge temperature protection control Heat defrosting controlHigh or low pressure protection Refrigerant recovery control on heating Outdoor fan controlRelation between main sensor and actuator Troubleshooting Instruction of troubleshootingBefore troubleshooting, check the following Lead wiring Housing point Troubleshooting procedureTroubleshooting check table LEVCheck the contact of LEV board connec Trouble criterion of main parts Outdoor unit does not operate. LED display display OFF Outdoor unit does not operate. LED displayWhen heating operation does not work. Start When cooling operation does not work. StartCheck of LEV Check of thermistor Check of HPS Test Point Diagram and Voltage MXZ-32SV E1 , MXZ-32SV E2 Electronic control P.C.boardNoise filter P.C.board MXZ-32SV E1 Outdoor FAN 220V-240V AC Reversing Valve 220V-240V ACMXZ-32SV E2 Outdoor FAN 230V AC Reversing Valve 230V ACM P.C.board MXZ-32SV E1 MXZ-32SV E2 Relay P.C.board MXZ-32SV E1 MXZ-32SV E2Disassembly Instructions Outdoor Unit Operating Procedure PhotosMXZ-32SV Removing the compressor PhotoRemoving the fan motor Removing the 4-way valve PhotoRemoving the linear expansion valve Photo Operating Procedure Photos Removing the reactorParts List Outdoor Unit Functional Parts MXZ-32SV E1Outdoor Unit Structural Parts MXZ-32SV E117 16 15 MXZ-32SV E2Accessory Parts MXZ-32SV E1 MXZ-32SV E2 Symbol Qty / unit Parts No Parts Name Wiring RemarksDifferent-diameter pipe Outlet guide