Mitsubishi Electric MSZ-D30NA Manual de usuario

SERVICE MANUAL

CONTENTS

1. TECHNICAL CHANGES······································· 3

2. PART NAMES AND FUNCTIONS·····················4

3. SPECIFICATION················································5

4. OUTLINES AND DIMENSIONS ························ 7

5. WIRING DIAGRAM············································ 8

6. REFRIGERANT SYSTEM DIAGRAM···············9

7. SERVICE FUNCTIONS ···································10

8. MICROPROCESSOR CONTROL ···················12

9. TROUBLESHOOTING·····································19

10. DISASSEMBLY INSTRUCTIONS····················31

Wireless type

Models

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

No. OBH501

INDOOR UNIT

Outdoor unit service manual

MUZ-D•NA Series (OBH502)

MUY-D•NA Series (OBH502)

NOTE:

RoHS compliant products have <G> mark on the spec name plate.

PARTS CATALOG (OBB501)

1TECHNICAL CHANGES

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

1. New model

Remote controller

Operation indicator

lamp

Remote control

receiving section

Emergency operation

switch

Horizontal vane

Air outlet

Air ﬁlter

(Catechin air ﬁlter)

Air inlet

Front panel

Air cleaning ﬁlter

(Anti-Allergy Enzyme Filter)

PART NAMES AND FUNCTIONS

ACCESSORIES

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

Installation plate 1

Installation plate screw 4 × 25 mm 7

Remote controller holder 1

Screw for × 3.5 × 1.6 mm (Black) 2

Battery (AAA) for remote controller 2

Wireless remote controller 1

Felt tape (Used for left or left-rear piping) 2

L-Joint pipe 1

Conduit plate 1

Air cleaning ﬁlter 2

3SPECIFICATION

Model MSZ-D30NA MSY-D30NA MSZ-D36NA MSY-D36NA

External ﬁnish White

Power supply V, phase, Hz

208 / 230 , 1 , 60

Max. fuse size (time delay)/ Disconnect switch

A15

Min. circuit ampacity A 1.0

Fan motor F.L.A 0.76

Airﬂow

Low-Med.-High

HEAT Dry CFM 445-639-848 — 445-639-848 —

COOL Dry

(Wet)

CFM 389(350)-639(576)-848(763) 389(350)-639(576)-848(763)

Moisture removal pt./h 9.9 11.3 11.9

Sound level

Low-Med.-High

Cooling dB(A) 32-42-49 32-42-49 32-42-49 32-42-49

Heating dB(A) 34-42-49 — 34-42-49 —

Cond. drain connection O.D. in. 5/8

Dimensions

W in. 46-1/16

D in. 11-5/8

H in. 14-3/8

Weight Ib. 40

Remote controller Wireless type

Control voltage (by built-in transformer) 12-24 VDC

NOTE : Test conditions are based on ARI 210/240.

3-1. OPERATING RANGE

(1) POWER SUPPLY

3-2. OUTLET AIR SPEED AND COVERAGE RANGE

(2) OPERATION

The air coverage range is the figure up

to the position where the air speed is 1

ft./sec., when air is blown out horizon-

tally from the unit properly at the High

speed position.

The coverage range should be used

only as a general guideline since it var-

ies according to the size of the room

and furniture arranged inside the room.

Mode Condition

Intake air temperature (°F)

Indoor Outdoor

DB WB DB WB

Cooling

Standard temperature 80 67 95 —

Maximum temperature 90 73 115 —

Minimum temperature 67 57 14 —

Maximum humidity 78 % —

Heating

Standard temperature 70 60 47 43

Maximum temperature 80 67 75 65

Minimum temperature 70 60 14 13

Model Mode Function Airlow

(CFM)

Air speed

(ft./sec.)

Coverage

range

(ft.)

MSZ-D30NA

MSZ-D36NA HEAT Dry 848 23.6 45.0

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

COOL

Dry 848 23.6 45.0

Wet 763 21.3 40.7

Rated voltage Guaranteed Voltage

Indoor unit

208/230 V

1 phase

60 Hz

Min.187 V 208 V 230 V Max.253 V

4OUTLINES AND DIMENSIONS

Unit : inch

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

Wireless remote controller

Piping Insulation

Liquid line

Drain hose

Gas line

Indoor unit

Air out

Air in

45-1/2

46-1/16

14-3/8

2-15/16 33-11/16 9-1/2

2-11/16

2-3/16 20-7/8 17-11/16

Installation plate

Piping

Drain hose

Wall hole ø3

2-5/16 3/4

14-3/8

1-7/8

4-11/16

7/811-5/81-7/8

1/8

5-3/8

5-7/8

2-5/8

2-1/2

2-15/16

ø1-1/4 O.D

ø9/16 I.D

ø1-15/16 O.D

ø1-1/4 I.D

ø3/8 19-11/16

(Flared connection ø3/8)

ø5/8 16-7/8

(Joint connection ø5/8)

Joint

ø1-15/16 O.D

ø1-1/4 I.D

ø5/8

(Flared connection ø5/8)

Inslation

1-1/8 Connected part

ø9/16 O.D

4-11/16 or more 8-11/16 or more

9-3/8 or more

4-3/16 or more

3/8 or more

2-3/16 or more

In case of left,left back,

or left under piping (using spacer) 5-1/8 or more

2-13/16 or more

14-1/2 or more

Required Space (Indoor Unit)

11-5/8 1/4

5WIRING DIAGRAM

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

REFRIGERANT SYSTEM DIAGRAM

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

Refrigerant flow in cooling

Refrigerant flow in heating

Unit:inch

Indoor

heat

exchanger

Room temperature

thermistor

RT11

Refrigerant pipe ø5/8

(with heat insulator)

Flared connection

Indoor coil

thermistor

RT12(main)

Refrigerant pipe ø3/8

(with heat insulator)

Distributor

Indoor coil

thermistor

RT13(sub)

Strainer

Joint

Flared connection

Joint connection

7SERVICE FUNCTIONS

7-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room.

In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be

modified according to the number of the indoor unit.

7-1. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS the indoor electronic control P.C. board.

The time will be shortened as follows. (Refer to 9-7.)

Set time : 1-minute 1-second

Set time : 3-minute 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is

shortened by short circuit-of JPG and JPS.)

How to set the remote controller exclusively for particular indoor unit

After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the remote

controller for the indoor unit.

The indoor unit will only accept the signal from the remote controller that has been assigned to the indoor unit once they are

set.

The setting will be cancelled if the breaker has turned off, or the power supply has shut down.

Please conduct the above setting once again after the power has restored.

How to modify the remote controller P.C. board

Remove batteries before modification.

The board has a print as shown below :

The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 1.

After modification, press the RESET button.

NOTE : For modification, take out

the batteries and press

the OPERATE/STOP (ON/

OFF) button twice or 3

times at first.

After finish modification,

put back the batteries then

press the RESET button.

MSZ-D30NA

MSZ-D36NA

MSY-D30NA

MSY-D36NA

Table 1

1 unit operation 2 units operation 3 units operation 4 units operation

No. 1 unit No modiﬁcation Same as at left Same as at left Same as at left

No. 2 unit — Solder J1 Same as at left Same as at left

No. 3 unit — — Solder J2 Same as at left

No. 4 unit — — — Solder both J1 and J2

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