Mitsubishi Electric MXZ-2HJ40VA Manuale utente

Models

MXZ-2HJ40VA -E1 ,ER1 ,ET1

MXZ-3HJ50VA -E1 ,ER1 ,ET1

HFC

utilized

R410A

INDOOR UNIT

SERVICE MANUAL No. OBH709

REVISED EDITION-A

OUTDOOR UNIT

CONTENTS

1. TECHNICAL CHANGES ··································· 2

2. PART NAMES AND FUNCTIONS····················· 3

3. SPECIFICATION················································ 4

4. NOISE CRITERIA CURVES······························ 6

5. OUTLINES AND DIMENSIONS ························ 7

6. WIRING DIAGRAM············································ 9

7. REFRIGERANT SYSTEM DIAGRAM············· 10

8. PERFORMANCE CURVES····························· 13

9. ACTUATOR CONTROL··································· 19

10. SERVICE FUNCTIONS···································· 20

11. TROUBLESHOOTING····································· 24

12. DISASSEMBLY INSTRUCTIONS···················· 50

INDOOR UNITS COMBINATION SHEETS

NOTE:

RoHS compliant products have <G> mark

on the spec name plate.

PARTS CATALOG (OBB709)

MXZ-2HJ40VA

Indoor unit service manual

MSZ-HJ•VA Series (OBH647C)

Please void OBH709.

Revision A:

• Additional refrigerant charge for MXZ-

3HJ50- E1 ,ER1 ,ET1 has been corrected.

Prepare the proper tools.

Prepare the proper protectors.

Provide adequate ventilation.

After stopping the operation of the air conditioner, turn off the power-supply breaker and remove the power plug.

Discharge the capacitor before the work involving the electric parts.

Do not perform the work involving the electric parts with wet hands.

Do not pour water into the electric parts.

Do not touch the refrigerant.

Do not touch the hot or cold areas in the refrigeration cycle.

When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to

touch the live parts.

Use the speciﬁed refrigerant only

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the spec labels provided with our products.

We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by

failure to follow the instructions.

TECHNICAL CHANGES

MXZ-2HJ40VA - E1 , ER1 , ET1

MXZ-3HJ50VA - E1 , ER1 , ET1

1. New model

Revision A:

• Additional refrigerant charge for MXZ-3HJ50- E1 ,ER1 ,ET1 has been corrected.

(Refer to 7. REFRIGERANT SYSTEM DIAGRAM.)

OBH709A

PART NAMES AND FUNCTIONS

ACCESSORIES

MXZ-2HJ40VA

Air inlet

Air outlet

Drain outlet

Piping

Drain hose

(Back and side)

Model MXZ-2HJ40VA MXZ-3HJ50VA

Drain socket 1 1

Drain cap 2

Air outlet

Drain outlet

Air inlet

(Back and side)

MXZ-3HJ50VA

OBH709A

SPECIFICATION

Outdoor model MXZ-2HJ40VA

Outdoor unit power supply Single phase

230 V, 50 Hz

System

Indoor units number 2

Piping total length m Max. 30

Connecting pipe length m Max. 20

Height difference (Indoor ~ Outdoor) m Refer to 7 REFRIGERANT SYSTEM DIAGRAM.

Height difference (Indoor ~ Indoor) m Refer to 7 REFRIGERANT SYSTEM DIAGRAM.

Function Cooling Heating

Capacity Rated frequency (Min.-Max.) 2 kW 4.0 (1.1 - 4.3) 4.3 (1.0 - 4.7)

Breaker capacity A 15

Electrical

data

Power input (Total) 1, 2 W 1,050 1,160

Running current (Total) 1, 2 A 5.1 5.6

Power factor (Total) 1, 2% 90

Starting current (Total) 1, 2 A 5.6

Coefﬁcient of performance (C.O.P) (Total) 1, 2 3.81 3.71

Compressor

Model KNB092FFDHC

Output W 1,100

Current 1, 2 A 4.7 5.2

Refrigeration oil (Model) L 0.32 (NEO22)

Fan

motor

Model RC0J50-FA

Current 1, 2 A 0.19 0.23

Dimensions W x H x D mm 800 x 550 x 285

Weight kg 32

Special

remarks

Air ﬂow (Rated) m3/h 1,752 1,914

Sound level (Rated) dB(A) 48 52

Fan speed (Rated) rpm 840 910

Refrigerant ﬁlling capacity (R410A) kg 0.95

1 Measured under rated operating frequency.

2 When connected with below indoor units.

MSZ-HJ25VA + MSZ-HJ25VA

NOTE: Test conditions are based on ISO 5151. (Refrigerant piping length (one way): 5 m)

COOLING INDOOR Dry-bulb temperature 27.0 °C Wet-bulb temperature 19.0 °C

OUTDOOR Dry-bulb temperature 35.0 °C Wet-bulb temperature 24.0 °C

HEATING INDOOR Dry-bulb temperature 20.0 °C

OUTDOOR Dry-bulb temperature 7.0 °C Wet-bulb temperature 6.0 °C

OBH709A

Outdoor model MXZ-3HJ50VA

Outdoor unit power supply Single phase

230 V, 50 Hz

System

Indoor units number 2 to 3

Piping total length m Max. 50

Connecting pipe length m Max. 25

Height difference (Indoor ~ Outdoor) m Refer to 7 REFRIGERANT SYSTEM DIAGRAM.

Height difference (Indoor ~ Indoor) m Refer to 7 REFRIGERANT SYSTEM DIAGRAM.

Function Cooling Heating

Capacity Rated frequency (Min.-Max.) 2 kW 5.0 (2.7 - 6.5) 6.0 (2.4 - 7.5)

Breaker capacity A 25

Electrical

data

Power input (Total) 1, 2 W 1,130 1,310

Running current (Total) 1, 2 A 5.0 5.8

Power factor (Total) 1, 2% 99

Starting current (Total) 1, 2 A 5.8

Coefﬁcient of performance (C.O.P) (Total) 1, 2 4.42 4.58

Compressor

Model SNB130FGBH1T

Output W 1,300

Current 1, 2 A 4.5 5.3

Refrigeration oil (Model) L 0.7 (NEO22)

Fan

motor

Model SIC-71FW-F764-1

Current 1, 2 A 0.20 0.23

Dimensions W x H x D mm 840 x 710 x 330

Weight kg 57

Special

remarks

Air ﬂow (Rated) m3/h 2,252 2,379

Sound level (Rated) dB(A) 50 53

Fan speed (Rated) rpm 630 660

Refrigerant ﬁlling capacity (R410A) kg 2.7

1 Measured under rated operating frequency.

2 When connected with below indoor units.

MSZ-HJ25VA + MSZ-HJ25VA + MSZ-HJ25VA

NOTE: Test conditions are based on ISO 5151. (Refrigerant piping length (one way): 5 m)

COOLING INDOOR Dry-bulb temperature 27.0 °C Wet-bulb temperature 19.0 °C

OUTDOOR Dry-bulb temperature 35.0 °C Wet-bulb temperature 24.0 °C

HEATING INDOOR Dry-bulb temperature 20.0 °C

OUTDOOR Dry-bulb temperature 7.0 °C Wet-bulb temperature 6.0 °C

OBH709A

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 re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

CoolingHigh

FUNCTION

FAN SPEED

HeatingHigh

SPL(dB(A))

LINE

NOISE CRITERIA CURVES

MXZ-2HJ40VA

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 re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

CoolingHigh

FUNCTION

FAN SPEED

HeatingHigh

SPL(dB(A))

LINE

MXZ-3HJ50VA

OUTDOOR UNIT

MICROPHONE

Test conditions

Cooling :Dry-bulb temperature 35°C Wet-bulb temperature 24°C

Heating :Dry-bulb temperature 7°C Wet-bulb temperature 6°C

OBH709A

OUTLINES AND DIMENSIONS

MXZ-2HJ40VA Unit: mm

OBH709A

1.Installation space

Note : Leave front and both sides

free of obstruction.

Note : Leave rear, overhead and

both sides free of obstruction.

500 or more

100 or more

Note : Leave front and overhead

free of obstruction.

100 or more 350 or more

200 or more

500 or more

2.Service space

100 or more

500 or more

350 or more

100 or more Service space

Liquid pipe : Ø6.35(flared)1/4 C unit connection

B unit connection

A unit connection

Gas pipe : Ø9.52(flared)3/8

Liquid pipe : Ø6.35(flared)1/4

Gas pipe : Ø9.52(flared)3/8

Liquid pipe : Ø6.35(flared)1/4

Gas pipe : Ø9.52(flared)3/8

MXZ-3HJ50VA Unit: mm

OBH709A

WIRING DIAGRAM

MXZ-2HJ40VA - E1 , ER1 , ET1

MXZ-3HJ50VA - E1 , ER1 , ET1

OBH709A

UNIT: mm (inch)

Piping length each indoor unit (a, b) 20 m

Total piping length (a+b) 30 m

Bending point for each unit 20

Total bending point 30

MXZ-2HJ40VA

MAX REFRIGERANT PIPING LENGTH

Outdoor

unit

Indoor

units

15 m

10 m

15 m

Refrigerant piping length (one way, 2 unit total)

Calculation : Xg = 20 g/m x (Refrigerant piping length (m) - 20)

Outdoor unit

precharged

(g) 30 m

200

20 m

950

Max.

Height

difference

Outdoor unit union diameter

For

Indoor unit A Liquid 6.35(1/4)

Gas 9.52(3/8)

Indoor unit B Liquid 6.35(1/4)

Gas 9.52(3/8)

Stop valve

(with strainer #100) LEV A

LEV B

Compressor

Muffler

4-way valve

Indoor unit

Capillary tube

Stop valve

(with strainer #100)

Refrigerant flow in cooling

Refrigerant flow in heating

Discharge

temperature

thermistor RT62

Stop valve

(with service port)

Stop valve

(with service port)

Strainer

#100

Sub muffler

Defrost

thermistor

RT61

Ambient

temperature

thermistor

RT65

Outdoor heat

exchanger

temperature

thermistor

RT68 FAN-OUT

HEX-OUT

It is irrelevant which unit is higher.

ADDITIONAL REFRIGERANT CHARGE

UNIT: mm

REFRIGERANT SYSTEM DIAGRAM

Refrigerant pipe diameter is different according to indoor unit to be

connected. When using extension pipes, refer to the right table.

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, refer to "PARTS

CATALOG".

OBH709A

Altri manuali per MXZ-2HJ40VA

Questo manuale è adatto per i seguenti modelli

Indice

Altri manuali Mitsubishi Electric Condizionatore d'aria

Mitsubishi Electric

Mitsubishi Electric MFZ-KT25VG-E1 Manuale utente

Mitsubishi Electric

Mitsubishi Electric Mr. Slim MSZ-GE06NA Manuale utente

Mitsubishi Electric

Mitsubishi Electric CITY MULTI PLFY-P15VFM-E Manuale operativo

Mitsubishi Electric

Mitsubishi Electric MSZ-FH35VE2 Manuale utente

Mitsubishi Electric

Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E Manuale operativo

Mitsubishi Electric

Mitsubishi Electric CITY MULTI PKFY-P-VAM-A Manuale utente

Mitsubishi Electric

Mitsubishi Electric MSZ-SF15VA Manuale utente

Mitsubishi Electric

Mitsubishi Electric Mr.SLIM PSA-RP140KA Manuale utente

Mitsubishi Electric

Mitsubishi Electric PEAD-RP EA Manuale utente

Mitsubishi Electric

Mitsubishi Electric City Multi PEFY-WP25VMS1-E Manuale utente

Mitsubishi Electric

Mitsubishi Electric TRANE TPEFYP MA144A Series Manuale utente

Mitsubishi Electric

Mitsubishi Electric PKH-FAK Manuale utente

Mitsubishi Electric

Mitsubishi Electric PK-2.5FLD Manuale operativo

Mitsubishi Electric

Mitsubishi Electric SLZ-KF25 Manuale utente

Mitsubishi Electric

Mitsubishi Electric MSZ-GS06NA Manuale utente

Mitsubishi Electric

Mitsubishi Electric PFFY-P-NEMU-E Manuale utente

Mitsubishi Electric

Mitsubishi Electric MUZ-EF25VE - E1 Manuale utente

Mitsubishi Electric

Mitsubishi Electric MLZ-KP35VF Manuale utente

Mitsubishi Electric

Mitsubishi Electric MXZ-2D40VA Manuale utente

Mitsubishi Electric

Mitsubishi Electric MSZ-AP15VGK Manuale utente

Mitsubishi Electric

Mitsubishi Electric MS-GH13VA Manuale utente

Mitsubishi Electric

Mitsubishi Electric Mr.SLIM PKA-A12GA Manuale utente

Mitsubishi Electric

Mitsubishi Electric MXZ-3C30NA2 Manuale utente

Mitsubishi Electric

Mitsubishi Electric CITY MULTI PUHY-400YMF-C Come usare

Manuali Condizionatore d'aria popolari di altre marche

Spheros

Spheros CC 355 Manuale utente

Bosch

Bosch Climate 5000 SCI 24 CAS/ OU- OUE Manuale utente

Panasonic

Panasonic CS-E12HKEW Manuale utente

nedis

nedis ACMB1WT7 Manuale utente

Samsung

Samsung AR KV Series Guida

Daikin

Daikin FCFV50A Manuale utente

Fujitsu

Fujitsu Inverter ASBA30JFC Manuale utente

Toshiba

Toshiba RAS-M10SMUV-E Manuale utente

Daikin

Daikin FXLQ20MAVE Manuale utente

Hitachi

Hitachi RAS-E24CAK Manuale utente

CIAT

CIAT Magister 2 Series Guida

Bestron

Bestron AAC6000 Manuale utente

Hisense

Hisense 7K Manuale tecnico

Frigidaire

Frigidaire FFRE0533S1E0 Manuale utente

Samsung

Samsung AS09HM3N Manuale utente

Frigidaire

Frigidaire CRA073PU11 Manuale del proprietario

Soleus Air

Soleus Air GB-PAC-08E4 Manuale utente

McQuay

McQuay MCK020A Manuale utente