Mitsubishi Heavy Industries SRK50HE-S1 Bedienungsanleitung

WALL MOUNTED TYPE ROOM AIR-CONDITIONER

( Split system, air to air heat pump type )

SRK50HE-S1, SRK56HE-S1

SRK63HE-S1, SRK71HE-S1

Manual No. ’06

SRK-T

050

updated September 29, 2009

137

( )

2.2 SRK50HE-S1

SRK56HE-S1 .........................................................176

2.3 SRK63HE-S1

SRK71HE-S1 .........................................................211

2. WALL MOUNTED TYPE

ROOM AIR-CONDITIONER

Split system, air to air

heat pump type

176

CONTENTS

2.2.1 GENERAL INFORMATION ...................................................................... 177

(1) Specific features................................................................................... 177

(2) How to read the model name .............................................................. 177

2.2.2 SELECTION DATA ................................................................................... 178

(1) Specifications ....................................................................................... 178

(2) Range of usage & limitations .............................................................. 180

(3) Exterior dimensions ............................................................................. 180

(4) Piping system ....................................................................................... 181

(5) Selection chart...................................................................................... 182

2.2.3 ELECTRICAL DATA ................................................................................. 183

(1) Electrical wiring .................................................................................... 183

2.2.4 OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER............ 184

(1) Operation control function by remote control switch ...................... 184

(2) Unit ON/OFF button .............................................................................. 185

(3) Power blackout auto restart function ................................................. 185

(4) Custom cord switching procedure ..................................................... 186

(5) Flap control ........................................................................................... 186

(6) Comfortable timer setting.................................................................... 187

(7) Outline of heating operation ............................................................... 187

(8) Outline of cooling operation ............................................................... 190

(9) Outline of dehumidifying operation.................................................... 191

(10) Outline of automatic operation ........................................................... 192

(11) Outline of fan operation ....................................................................... 192

(12) Protective control function.................................................................. 193

2.2.5 APPLICATION DATA ............................................................................... 195

(1) Selection of location for installation .................................................. 196

(2) Installation of indoor unit .................................................................... 197

(3) Installation of outdoor unit .................................................................. 200

(4) Refrigerant piping ................................................................................ 200

(5) Test run.................................................................................................. 201

(6) Precautions for wireless remote controller installation and

operation ............................................................................................... 202

2.2.6 MAINTENANCE DATA ............................................................................. 203

(1) Troubleshooting procedures for electrical equipment ..................... 203

(2) Servicing ............................................................................................... 210

2.2.7 REFRIGERANT PIPING INSTALLATION/SERVICING MANUAL

FOR AIR CONDITIONERS USING R410A .............................................. 210

177

Error of signal transmission

2.2.1 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 or

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

(a) Remote control flap

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

¡Air scroll: 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.

(b) Automatic operation

When the remote control switch is set on “auto( ) ”, it will either automatically decide operation mode such as cooling, heating

and thermal dry, or operate in the operation mode before it has been turned to automatic control.

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

follows.

(2) How to read the model name

Example : SR K 50 H E - S1

Room temperature sensor error

Indoor fan motor error

Heat exchanger sensor error

2 time flash

6 time flash

TIMER light

1 time flash

Outdoor unit heat exchanger

sensor error

Discharge pipe sensor error

Outdoor temperature sensor error

2 time flash

4 time flash

RUN light

keeps flashing

1 time flash

OFF

Over heat of compressor

5 time flash

RUN light

5 time flash

6 time flash 6 time flash

RUN light TIMER light Outdoor (LED)

R410A models

Series No.

Heat pump type

Product capacity

Wall mounted type

Split type room air-conditioner

2 time flash OFF Abnormality of outdoor unit

178

Item

Model SRK50HE-S1 SRC50HE-S1

Cooling capacity(1) W4700

Heating capacity(1) W5300

Power source 1 Phase, 220-240V, 50Hz

Cooling input kW 1.41

Running current (Cooling) A 6.5/6.3/6.0

Heating input kW 1.40

Running current (Heating) A 6.5/6.2/6.0

Inrush current A 39.6

COP Cooling: 3.33 Heating: 3.79

Cooling Sound level Hi 43, Me 39, Lo 34 47

Noise level Power level dB 58 63

Heating Sound level Hi 44, Me 39, Lo 35 49

Power level 61 64

Exterior dimensions

Height ×Width ×Depth mm 298 ×840 ×259 640 ×850 ×290

Color Cool white Stucco white

Net weight kg 12 44

Refrigerant equipment

Compressor type & Q’ty –RM-B5118MNE5 (Rotary type) ×1

Motor kW –1.4

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 1.4 (Pre-Charged up to the piping length of 15m)

Refrigerant oil R0.7 (MA68)

Deice control Microcompter control

Air handling equipment

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

Motor W 27 35

(Cooling) 10.0 38.0

Air flow (at High) (Heating) CMM 12.5 38.0

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

Shock & vibration absorber –Cushion rubber (for compressor)

Electric heater ––

Operation control

Operation switch Wireless-Remote controller –

Room temperature control Microcomputer thermostat –

Pilot lamp RUN (Green), TIMER (Yellow), HI POWER (Green), ECONO (Orange)

Safety equipment

O.D mm (in) Liquid line: φ6.35 (1/4″)Gas line: φ12.7 (1/2″)

Connecting method Flare Connection

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 (Natural enzyme filter ×1, Photocatalytic washable deodorizing filter ×1)

Optional parts –

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

2.2.2 SELECTION DATA

(1) Specifications

Model SRK50HE-S1 (Indoor unit)

SRC50HE-S1 (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 220/230/240V 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, Serial signal error protection, Indoor fan motor error protection, Frost

protection

The piping length is 7.5m.

(220/230/240V)

179

Item

Model SRK56HE-S1 SRC56HE-S1

Cooling capacity(1) W5100

Heating capacity(1) W5800

Power source 1 Phase, 220-240V, 50Hz

Cooling input kW 1.59

Running current (Cooling) A 7.3/7.1/6.8

Heating input kW 1.58

Running current (Heating) A 7.4/7.1/6.8

Inrush current A 45.2

COP Cooling: 3.21 Heating: 3.67

Cooling Sound level Hi 44, Me 40, Lo 35 49

Noise level Power level dB 59 64

Heating Sound level Hi 44, Me 39, Lo 35 51

Power level 61 65

Exterior dimensions

Height ×Width ×Depth mm 298 ×840 ×259 640 ×850 ×290

Color Cool white Stucco white

Net weight kg 12 44

Refrigerant equipment

Compressor type & Q’ty –RM-B5120MNE5 [Rotary type] ×1

Motor kW –1.5

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 1.4 (Pre-Charged up to the piping length of 15m)

Refrigerant oil R0.7 (MA68)

Deice control Microcomputer control

Air handling equipment

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

Motor W 27 35

(Cooling) 11.0 38.0

Air flow (at High) (Heating) CMM 12.5 38.0

Air filter, Q’ty

Polypropylene net (washable)

–

Shock & vibration absorber –Cushion rubber (for compressor)

Electric heater ––

Operation control

Operation switch Wireless-Remote controller –

Room temperature control Microcomputer thermostat –

Pilot lamp RUN (Green), TIMER (Yellow), HI POWER (Green), ECONO (Orange)

Safety equipment

O.D mm (in) Liquid line: φ6.35 (1/4″)Gas line: φ12.7 (1/2″)

Connecting method Flare connection

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 (Natural enzyme filter ×1, Photocatalytic washable deodorizing filter ×1)

Optional parts –

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

Model SRK56HE-S1 (Indoor unit)

SRC56HE-S1 (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 220/230/240V 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, Serial signal error protection, Indoor fan motor error protection,

Frost protection

The piping length is 7.5m.

(220/230/240V)

180

(2) Range of usage & limitations

Indoor return air temperature

(Upper, lower limits)

Refrigerant line (one way) length Max. 25m

All models

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

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

Models

(3) Exterior dimensions

(a) Indoor unit

Models All models

Unit: mm

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 (ø12.7)

Piping for liquid 603.5 (ø6.35)

63.5

8.5

5.3 284.2

44.5

73.5

182.5

450

693

181

(b) Outdoor unit

Models All models

Drain holes

286.4

290

49.6 43.5

850

203.1 510 136.9

476

Elogated hole

(2-12 x16)

314 12

328

Terminal block

Service valve (Liquid)

ø6.35 (1/4'')

Service valve (Gas)

ø12.7 (1/2'')

Ground

terminal

124 34.6

20˚

42.7

100.3

640

(4) Piping system

Models SRK50HE-S1, 56HE-S1

Outdoor unitIndoor unit

Heat

exchanger

Room temp.

sensor

Heat

exchanger

Flare connection

Heat

exchanger

sensor

Piping

(Liquid)

ø6.35

Check joint

4 way valve

Service valve (Liquid)

Flare connection

Discharge pipe

temp. sensor

Cooling cycle

Heating cycle Outdoor air

temp. sensor

Heat exchanger

sensor

Compressor

Capillary tube

Strainer

Accumulator

Service valve

(Gas)

Electronic

expansion valve

Piping

(Gas)

ø12.7

Capillary tube

182

(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 SRK50HE-S1 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 = 4700 ✕ 0.975 ✕ 1.0 = 4583 W

SRK50HE-S1 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

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

Piping length [m]

Cooling

Heating

1.0

0.99

1.0

0.975

1.0

0.965

1.0

0.95

1.0

183

2.2.3 ELECTRICAL DATA

(1) Electrical wiring

Models SRK50HE-S1, 56HE-S1

Power source

1 Phase

220-240V 50Hz

Outdoor unit

Indoor unit

HEAT

EXCHANGER

Printed circuit board

Y/GN

CNU

TB TB

250V

3.15A

ZNR

CNM

CNE CNG

52C3

52C

52C4 JG

Th1 Th2

52C

52X

( )

Display

Wireless

R-Amp

Y/GN

CNG

(250V 3.15A)

ZNR

D.S

J N L

CM2

52X1

CM1

52X2

52X3 1

CNE

51C

CNB

CNU

20S

Th4

Th5

Th6

FMo

CFO

EEV

Black

Brown

Red

Light Blue

White

Yellow/Green

Yellow

Orange

Y/GN

Color symbol

Meaning of marks

Symbol Parts name

CM Compressor motor

FFuse

Fan motor (Indoor)

FMo Fan motor (Outdoor)

SM Flap motor

RL Inspection lamp

Symbol Parts name

Room temp. sensor

Heat exchanger sensor (Indoor unit)

Heat exchanger sensor (Outdoor unit)

Outdoor air temp. sensor

Discharge pipe sensor

Symbol Parts name

ZNR Varistor

20S 4 way valve (coil)

52C Magnetic contactor

DS Diode stack

52X

1-3

Auxiliary relay

EEV Electronic expansion valve

51C Motor Protector for CM

TB Terminal block

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