Mitsubishi Heavy Industries SRK13ZEV-S4 Bedienungsanleitung

-T·054

INVERTER WALL MOUNTED TYPE

ROOM AIR-CONDITIONER

(Split system, air to air heat pump type)

SRK13ZEV-S4

SRK22ZEV-S4

ROOM AIR-CONDITIONING

TECHNICAL MANUAL & PARTS LIST

TECHNICAL MANUAL

1. SRK13ZEV-S4 .............................................................. 2

2. SRK22ZEV-S4 ............................................................ 60

CONTENTS

1.1 GENERAL INFORMATION......................................................................... 3

(1) Specific features ...................................................................................................... 3

(2) How to read the model name.................................................................................. 3

1.2 SELECTION DATA ..................................................................................... 4

(1) Specifications ......................................................................................................... 4

(2) Range of usage & limitations ................................................................................ 5

(3) Exterior dimensions ............................................................................................... 5

(4) Piping system ......................................................................................................... 6

(5) Selection chart ........................................................................................................ 7

1.3 ELECTRICAL DATA ................................................................................... 8

(1) Electrical wiring ...................................................................................................... 8

1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER .............. 9

(1) Operation control function by remote control switch ......................................... 9

(2) Unit ON/OFF button ................................................................................................10

(3) Power blackout auto restart function ...................................................................10

(4) Custom cord switching procedure .......................................................................11

(5) Flap control .............................................................................................................11

(6) Comfortable timer setting ......................................................................................12

(7) Outline of heating operation.................................................................................. 12

(8) Outline of cooling operation.................................................................................. 15

(9) Outline of dehumidifying operation ......................................................................16

(10) Outline of automatic operation .............................................................................19

(11) Outline of fan operation .........................................................................................19

(12) ION operation ..........................................................................................................20

(13) Protective control function ....................................................................................20

1.5 APPLICATION DATA .................................................................................. 25

(1) Selection of location for installation.....................................................................26

(2) Installation of indoor unit ......................................................................................27

(3) Installation of outdoor unit ....................................................................................30

(4) Refrigerant piping...................................................................................................30

(5) Test run ....................................................................................................................31

(6) Precautions for wireless remote control installation and operation .................32

1.6 MAINTENANCE DATA ............................................................................... 33

(1) Troubleshooting procedures for electrical equipment........................................33

(2) Servicing .................................................................................................................44

1.7 REFRIGERANT PIPING INSTALLATION/SERVICING MANUAL

FOR AIR CONDITIONERS USING R410A ................................................ 45

(1) Outline .....................................................................................................................45

(2) Refrigerant piping installation...............................................................................46

(3) Installation, removal and servicing .......................................................................52

(4) Refrigerant recovery ..............................................................................................57

MODEL SRK13ZEV-S4

Over heat of compressor

Error of signal transmission

Outdoor fan motor error

1.1 GENERAL INFORMATION

(1) Specific features

The “MITSUBISHI HEAVY INDUSTRIES, LTD.” room air-conditioner: SRK series are of split and wall mounted type and the unit

consists of indoor unit and outdoor unit with refrigerant precharged in factory. The indoor unit is composed of room air cooling equip-

ment with operation control switch and the outdoor unit is composed of condensing unit with compressor.

(a) Inverter (Frequency converter) for multi-steps power control

¡Heating/Cooling

The rotational speed of a compressor is changed in step in relation to varying load, interlocked with the indoor and outdoor unit

fans controlled to change frequency, thus controlling the capacity.

¡Allowing quick heating/cooling operation during start-up period. Constant room temperature by fine-tuned control after the

unit has stabilized.

(b) Fuzzy control

¡Fuzzy control calculates the amount of variation in the difference between the return air temperature and the setting temperature

in compliance with the fuzzy rules in order to control the air capacity and the inverter frequency.

The flap can be automatically controlled by operating wireless remote control.

¡Air scroll (AUTO): Flap operation is automatically control.

¡Swing: This will swing the flap up and down.

¡Memory flap: Once the flap position is set, the unit memorizes the position and continues to operate at the same position from

the next time.

(d) Self diagnosis function

¡We are constantly trying to do better service to our customers by installing such judges that show abnormality of operation as

follows.

Outdoor heat exchanger sensor

error

Discharge pipe sensor error

Outdoor air temperature sensor

error

2 time flash

4 time flash

RUN light

keeps flashing

1 time flash

OFF

Trouble of outdoor unit

Over current

Current cut

2 time flash

3 time flash

RUN light

1 time flash

2 time flash

3 time flash

1 time flash

5 time flash 5 time flash

TIMER light Outdoor (LED)

Room temperature sensor error

Indoor fan motor error

Heat exchanger sensor error

2 time flash

6 time flash

TIMER light

1 time flash

RUN light

Rotor lock

6 time flash 6 time flash

7 time flash ON

2 time flash 7 time flash

RUN light

2 time flash

(2) How to read the model name

Example : SR K 13 Z EV - S4

R410A models

Series No.

Inverter type

Product capacity

Wall mounted type

Split type room air-conditioner

Item

Model SRK13ZEV-S4 SRC13ZEV-S4

Cooling capacity(1) W4000 (400~5000)

Heating capacity(1) W6000 (400~9000)

Power source 1 Phase, 220V, 50Hz

Cooling input kW 0.93 (0.105~1.5)

Running current (Cooling) A 5.5

Heating input kW 1.38 (0.095~2.490)

Running current (Heating) A 6.8

Inrush current A 6.8

COP Cooling: 4.30 Heating: 4.35

Noise level Cooling Sound level 46 47

Heating Sound level 46 47

Exterior dimensions

Height ×Width ×Depth mm 298 ×840 ×259 595 ×780 ×290

Color Cool white Stucco white

Net weight kg 12 39

Refrigerant equipment

Compressor type & Q’ty –5CS102XFA (Scroll type) ×1

Motor kW –1.1

Starting method –Line starting

Heat exchanger Louver fins & inner grooved tubing Straight fins & inner grooved tubing

Refrigerant control Capillary tubes + Electronic expansion valve

Refrigerant(3) kg R410A 1.35 (Pre-Charged up to the piping length of 15m)

Refrigerant oil R0.36 (RB68A)

Deice control Microcomputer control

Air handling equipment

Fan type & Q’ty Tangential fan ×1 Propeller fan ×1

Motor W 33 34

(Cooling)

Air flow (at High) (Heating) CMM

Air filter, Q’ty Polypropylene net (washable) ×2–

Shock & vibration absorber –Cushion rubber (for compressor)

Electric heater ––

Operation control

Operation switch Wireless-Remote control –

Room temperature control Microcomputer thermostat –

Pilot light RUN (Green), TIMER (Yellow), JET/HI POWER (Green), ION (Green)

Safety equipment

O.D mm (in) Liquid line: φ6.35 (1/4″)Gas line: φ9.52 (3/8″)

Connecting method Flare connecting

Attached length of piping Liquid line: 0.54 m

Gas line : 0.47 m –

Insulation Necessary (Both sides)

Drain hose Connectable

Power source cord 2 m (3 cores with Earth)

Size ×Core number 1.5 mm2×4 cores (Including earth cable)

Connection wiring Connecting method Terminal block (Screw fixing type)

Accessories (included) Mounting kit, Clean filter (Allergen clear filter ×1, Natural enzyme filter ×1)

Optional parts –

Notes (1) The data are measured at the following conditions.

1.2 SELECTION DATA

(1) Specifications

Model SRK13ZEV-S4 (Indoor unit)

SRC13ZEV-S4 (Outdoor unit)

Item Indoor air temperature Outdoor air temperature Standards

Operation DB WB DB WB

Cooling 27ºC 19ºC 35ºC 24ºC ISO-T1, JIS C9612

Heating 20ºC – 7ºC 6ºC ISO-T1, JIS C9612

(2) The operation data are applied to the 220V districts respectively.

(3) The refrigerant quantity to be charged includes the refrigerant in 15 m connecting piping.

(Purging is not required even for the short piping.)

If the piping length is longer, when it is 15 to 25 m, add 20 g refrigerant per meter.

Operation data

(1)

Refrigerant

piping

Compressor overheat protection, Heating overload protection (High pressure control), Overcurrent protection,

Frost protection, Serial signal error protection, Indoor fan motor error protection, Cooling overload protection

The piping length is 7.5m.

(220V)

(2) Range of usage & limitations

(3) Exterior dimensions

(a) Indoor unit

Model SRK13ZEV-S4

Indoor return air temperature

(Upper, lower limits)

Refrigerant line (one way) length Max. 25m

SRK13ZEV-S4

Power source voltage Rating ±10%

Voltage at starting Min. 85% of rating

Frequency of ON-OFF cycle Max. 10 times/h

ON and OFF interval Max. 3 minutes

Outdoor air temperature

(Upper, lower limits)

Vertical height difference between

outdoor unit and indoor unit

Max. 15m (Outdoor unit is higher)

Max. 15m (Outdoor unit is lower)

Item

Model

Cooling operation : Approximately 21 to 32˚C

Heating operation : Approximately 15 to 30˚C

Cooling operation : Approximately 21 to 43˚C

Heating operation : Approximately

5 to 21˚C

840

298

Piping hole right

259

right: 67

left : 60

60 14.5

813

603

VIEW A

44.5

47.5220.5

207.5

73.5

53.5

Piping hole (ø65) Piping hole (ø65)

Indoor unit

Installating board

Drain hose 515 (ø16)

Piping for gas 533.5 (ø9.52)

Piping for liquid 603.5 (ø6.35)

63.5

8.5

5.3 284.2

44.5

73.5

182.5

450

693

(b) Outdoor unit

Model SRC13ZEV-S4

(4) Piping system

Model SRK13ZEV-S4

Outdoor unitIndoor unit

Heat

exchanger

Room temp.

sensor

Humidity

sensor

Heat

exchanger

Heat

exchanger

Solenoid

valve

Flare connecting

Heat

exchanger

sensor

Piping

(Liquid)

ø6.35

Piping

(Gas)

ø9.52

Check joint

4 way valve

Service valve (Liquid)

Flare connecting

Discharge pipe

temp. sensor

Cooling cycle

Heating cycle Outdoor air

temp. sensor

Heat exchanger

sensor

Compressor

uffler

Capillary tube Capillary tube

Strainer

Service valve

(Gas)

Electronic

expansion valve

14.4

595

96.5 42.5

35°

90.6 29.7

340

13.5

312.5

17.5

164

286.4

290

45.4

49.6

463

62780

106 510

Drain holes

2-16 ×12

Ground

terminal

Terminal block

Service valve (Liquid)

Service valve (Gas)

Flare connection ø6.35 (1/4")

Flare connection ø9.52 (3/8")

Unit: mm

(5) Selection chart

Correct the cooling and heating capacity in accordance with the conditions as follows. The net cooling and heating capacity can be

obtained in the following way.

Net capacity = Capacity shown on specification ✕ Correction factors as follows.

(a) Coefficient of cooling and heating capacity in relation to temperatures

(b) Correction of cooling and heating capacity in relation to one way length of refrigerant piping

It is necessary to correct the cooling and heating capacity in relation to the one way piping length between the indoor and outdoor

units.

In additions to the foregoing corrections (a), (b) the heating capacity needs to be adjusted also with respect to the frosting on the

outdoor heat exchanger.

How to obtain the cooling and heating capacity

Example : The net cooling capacity of the model SRK13ZEV-S4 with the piping length of 15m, indoor wet-bulb temperature at 19.0˚C

and outdoor dry-bulb temperature 35˚C is Net cooling capacity = 4000 ✕0.975 ✕1.0 =3900 W

SRK13ZEV-S4 Length 15m Factor by air

temperatures

ISO-T1 Standard ConditionOutdoor air W.B. temperature ˚C W.B.

1005-5

16 18 20 22 24

ISO-T1 Standard ConditionIndoor air W.B. temperature ˚C W.B.

Heating

Applicable range

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

Cooling

Heating operation

Indoor air D.B.

temperature

˚C D.B.

Cooling operation

Outdoor air D.B.

temperature

˚C D.B.

Coefficient of cooling &

Heating capacity in

relation to temperature

Piping length [m]

Cooling

Heating

1.0

0.99

1.0

0.975

1.0

0.965

1.0

0.95

1.0

Air inlet temperature of

outdoor unit in ˚CWB

Adjustment coefficient

-5

0.91

-3

0.88

-1

0.86

0.87

0.92

1.00

1.3 ELECTRICAL DATA

(1) Electrical wiring

Model SRK13ZEV-S4

Outdoor unit

Indoor unit

Printed circuit

board

TB TB

F (250V 20A)

RD U

C2 S.IN R.IN

Th4

Th5

Th6

CNB

CNE

CNA

CND

Power

transistor

20S

EEV

FMo

Black

Brown

Red

Blue

White

Yellow/Green

Y/GN

Yellow

Color symbol

Meaning of marks

Symbol Parts name

CM Compressor motor

FFuse

Fan motor (Indoor)

FMo

an motor (Outdoor)

Flap motor

Reactor

Symbol Parts name

Room temp. sensor

Heat exchanger sensor (Indoor unit)

Humidity sensor

Heat exchanger sensor (Outdoor unit)

Outdoor air temp. sensor

Discharge temp. sensor

Symbol Parts name

20S 4 way valve (coil)

ZNR Varistor

52C Magnetic contactor

DS Diode stack

EEV Electronic expansion valve

SV Solenoid valve

ZNR

250V

CNM Printed

circuit

board

JEM-ACNFCNE

52C3

CNG

52C

52C4

4CNU

CNL

CNV

CNN

ION

generator

Safety switch

Display

Wireless R-Amp

Back-up switch

Y/G

Th1 Th2 Th3

Heat

exchanger

Power source

1 Phase

220V 50Hz

( )

1.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

(1) Operation control function by remote control switch

TEMP

SLEEP

ECONO

ACL

OFF

DRY MODE

AIR FLOW

CANCEL

ion

START

JET/

JET

ECONO

AM PM

SLEEP

MED

AUTO

FAN SPEED

MODE

TIME

SET UP

TIMER

FAN SPEED button

Each time the button is pushed, the indi-

cator is switched over in turn.

•The above illustration shows all controls, but in

practice only the relevant parts are shown.

OPERATION MODE select button

Each time the button is pushed, the indi-

cator is switched over in turn.

ION button

This button selects ION operation.

ON/OFF button

Press for starting operation, press again for

stopping.

JET/HI POWER button

This button changes the JET/HI POWER mode

.DRY MODE button

This button changes the DRY mode.

RESET switch

Switch for resetting microcomputer.

SLEEP button

This button selects SLEEP operation.

ECONO switch

This switch changes the ECONOMY mode.

TIME SET UP switch

This switch for setting the TIME.

TEMPERATURE button

This button sets the room temperature.

(This button changes the present time and

TIMER time.)

CANCEL button

This button cancels the ON timer and

SLEEP timer.

JET

ECONO

AM PM

SLEEP

MED

AUTO

OPERATION MODE indicator

Indicates selected operation with lamp.

[ (Auto) • (Cool) • (Heat) • (Dry) • (Fan)]

TEMPERATURE indicator

Indicates set temperature.

(Does not indicate temperature when operation

mode is on AUTO)

FAN SPEED indicator

Indicates set air flow rate with lamp.

ECONOMY MODE indicator

Indicates during economy mode operation.

SLEEP indicator

Indicates during SLEEP operation.

ON TIMER indicator

Indicates during ON TIMER operation.

HI POWER MODE indicator

Indicates during Hi power mode operation.

Time indicator

Indicates present time or timer setting time.

DRY MODE indicator

Shows the various DRY modes.

START button

This button selects ON TIMER operation.

(Air scroll) (Flap stopped)

AIR FLOW button

This button changes the flap mode. When

pressed, this button changes the mode in the

following order:

AIR FLOW indicator

Shows selected flap mode.

SIndication section

Model SRK13ZEV-S4

Remote control

SOperation section

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