Mitsubishi Heavy Industries SRK25ZJP-S, SRK35ZJP-S, SRK50ZJP-S User Manual

TECHNICAL MANUAL

Manual No.'10•SRK-T-100

INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)

SRK25ZJP-S

SRK35ZJP-S
SRK50ZJP-S

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1

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'10 • SRK-T-100

'10 • SRK-T-099

CONTENTS

1. SPECIFICATIONS ........................................................................................ 3

(2) Outdoor units ....................................................................................... 7

.......................................................... 18

(3) Wireless remote controller

................................................................... 9

............................................................................ 6

(1) Indoor units .......................................................................................... 6

2. EXTERIOR DIMENSIONS

3. ELECTRICAL WIRING ................................................................................. 10

(1) Indoor units .......................................................................................... 10

4. NOISE LEVEL ............................................................................................... 13

(2) Outdoor units ....................................................................................... 11

6. RANGE OF USAGE & LIMITATIONS

................................................................................... 20

7. CAPACITY TABLES

5. PIPING SYSTEM ......................................................................................... 16

.................................................................................. 21

8. APPLICATION DATA

9. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 29

(6) Timer operation

.................................................................................. 31

....................................................... 30

(1) Operation control function by remote controller

(5) Flap control ........................................................................................ 31

(4) Custom cord switching procedure

......................................................................... 30(3) Auto restart function

(2) Unit ON/OFF button

........................................................................... 30

.................................. 29

(7) Outline of heating operation ................................................................ 32

(9) Outline of automatic operation ........................................................... 33

(8) Outline of cooling operation ............................................................... 33

(10) Protective control function

................................................................... 34

..................... 39

............................................................................... 38

(4) Troubleshooting procedure (If the air conditioner runs)

(3) Troubleshooting procedure

(If the air conditioner does not run at all)

........ 38

(1) Cautions

............................................................................................. 38

(2) Items to check before troubleshooting ................................................. 38

(5) Self-diagnosis table ............................................................................. 40

(6) Service mode (Trouble mode access function) ................................... 41

(7) Inspection procedures corresponding to detail of trouble .................... 49

10. MAINTENANCE DATA

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2

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'10 • SRK-T-100

'10 • SRK-T-099

(10) How to make sure of wireless remote controller .................................. 54

(11) Outdoor unit inspection points .............................................................. 55

(8)

Phenomenon observed after shortcircuit, wire breakage on sensor

......... 53

(9) Checking the indoor electrical equipment

........................................... 53

■How to read the model name

Example: SRK 25 Z

Series code

Inverter type

Product capacit

Model name SRK : Wall mounted type

SRC : Outdoor unit

JP-S

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3

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'10 • SRK-T-100

RWA000Z232

1. SPECIFICATIONS

Model

Item

SRK25ZJP-S

Indoor unit SRK25ZJP-S Outdoor unit SRC25ZJP-S
Cooling capacity (1) W 2500 (1000 (Min.)~2700 (Max.))
Heating capacity (1) W 3200 (1200 (Min.)~4200 (Max.))
Power supply 1 Phase, 220~240 V, 50Hz

Operation
data (1)

Power
consumption

Cooling

kW

0.71 (0.21~0.88)

Heating 0.86 (0.27~1.46)

Running
current

Cooling

A

3.6 / 3.4 / 3.3 (220/ 230/ 240 V)

Heating 4.2 / 4.0 / 3.9 (220/ 230/ 240 V)

Inrush current 4.2 / 4.0 / 3.9 (220/ 230/ 240 V)

COP

Cooling 3.52
Heating 3.72

Noise
level

Cooling

Sound level dB(A) Hi : 36 Me : 30 Lo : 22 46
Power level dB 52 56

Heating

Sound level dB(A) Hi : 35 Me : 30 Lo : 26 48

Power level dB 51 58
Exterior dimensions (Height x Width x Depth) mm 268 x 790 x 224 540 x 780 (+62) x 290
Exterior appearance

(Munsell color)

Fine snow

(8.0Y 9.3/0.1) near equivalent

Stucco white

(4.2Y 7.5/1.1) near equivalent

Net weight kg 8.5 32

Refrigerant
equipment

Compressor type & Q'ty — RM-B5077MDE1 (Rotary type) x 1
Motor (Starting method) kW — 0.75 (Line starting)
Refrigerant oil 0.35 (DIAMOND FREEZE MA68)
Refrigerant (3) kg R410A 0.75 (Pre-Charged up to the piping length of 10m)
Heat exchanger Louver fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control

Air handling
equipment

Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24

Air flow

Cooling

CMM

Hi : 8.0 Me : 6.2 Lo : 4.5 29.5

Heating Hi : 9.3 Me : 7.8 Lo : 6.6 25.6

Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —

Shock & vibration absorber — Cushion rubber (for compressor)

Operation
control

Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —

Operation Display

RUN : Green, TIMER : Yellow, HI POWER : Green,

ECONO : Orange

Safety devices

Compressor overheat protection, Overcurrent protection,

Frost protection, Serial signal error protection, Fan motor error protection,

Heating overload protection (High pressure control), Cooling overload protection

Installation
data

Refrigerant piping size (O.D) mm Liquid line: φ6.35 (1/4") Gas line: φ9.52 (3/8")
connecting method Flare connecting

Attached length of piping m

Liquid line : 0.4

Gas line : 0.33

—

Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length

m

Max. 15

Vertical height difference between
outdoor unit and indoor unit

Max.10 (Outdoor unit is higher)

Max.10 (Outdoor unit is lower)
Drain hose Connectable (VP 16) —
Power cable 2m (3 Cores wih Earth)
Recommended breaker size A 16

Connection wiring

Size x Core number 1.5mm2 x 4 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)

Accessories (included)

Mounting kit

Optional parts —

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

Item

Operation

Indoor air temperature Outdoor air temperature

Standards

DB WB DB WB

Cooling 27˚C 19˚C 35˚C 24˚C

ISO-T1, JIS C 9612

Heating 20˚C — 7˚C 6˚C

(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 10m connecting piping.
(Purging is not required even for the short piping.)

The pipe length is 7.5m.

Adapted to RoHS directive

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4

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'10 • SRK-T-100

Model

Item

SRK35ZJP-S

Indoor unit SRK35ZJP-S Outdoor unit SRC35ZJP-S
Cooling capacity (1) W 3500 (1000 (Min.)~3700 (Max.))
Heating capacity (1) W 4000 (1300 (Min.)~4800 (Max.))
Power supply 1 Phase, 220~240 V, 50Hz

Operation
data (1)

Power
consumption

Cooling

kW

1.06 (0.21~1.24)

Heating 1.09 (0.29~1.58)

Running
current

Cooling

A

5.1 / 4.9 / 4.6 (220/ 230/ 240 V)

Heating 5.2 / 5.0 / 4.8 (220/ 230/ 240 V)

Inrush current 5.2 / 5.0 / 4.8 (220/ 230/ 240 V)

COP

Cooling 3.30
Heating 3.67

Noise
level

Cooling

Sound level dB(A) Hi : 39 Me : 32 Lo : 23 49
Power level dB 54 59

Heating

Sound level dB(A) Hi : 41 Me : 36 Lo : 27 51

Power level dB 57 61
Exterior dimensions (Height x Width x Depth) mm 268 x 790 x 224 540 x 780 (+62) x 290
Exterior appearance

(Munsell color)

Fine snow

(8.0Y 9.3/0.1) near equivalent

Stucco white

(4.2Y 7.5/1.1) near equivalent

Net weight kg 8.5 35

Refrigerant
equipment

Compressor type & Q'ty — RM-B5077MDE1 (Rotary type) x 1
Motor (Starting method) kW — 0.90 (Line starting)
Refrigerant oil 0.35 (DIAMOND FREEZE MA68)
Refrigerant (3) kg R410A 1.05 (Pre-Charged up to the piping length of 15m)
Heat exchanger Slit fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control

Air handling
equipment

Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24

Air flow

Cooling

CMM

Hi : 8.5 Me : 6.8 Lo : 4.6 27.8

Heating Hi : 11.0 Me : 8.4 Lo : 6.8 27.8

Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —

Shock & vibration absorber — Cushion rubber (for compressor)

Operation
control

Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —

Operation Display

RUN : Green, TIMER : Yellow, HI POWER : Green,

ECONO : Orange

Safety devices

Compressor overheat protection, Overcurrent protection,

Frost protection, Serial signal error protection, Fan motor error protection,

Heating overload protection (High pressure control), Cooling overload protection

Installation
data

Refrigerant piping size (O.D) mm Liquid line :φ6.35 (1/4") Gas line :φ9.52 (3/8")
connecting method Flare connecting

Attached length of piping m

Liquid line : 0.40
Gas line : 0.33

—

Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length

m

Max. 15

Vertical height difference between
outdoor unit and indoor unit

Max.10 (Outdoor unit is higher)

Max.10 (Outdoor unit is lower)
Drain hose Connectable (VP 16) —
Power cable 2m (3 Cores wih Earth)
Recommended breaker size A 16

Connection wiring

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

Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Optional parts —

Adapted to RoHS directive

RWA000Z232

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

Item

Operation

Indoor air temperature Outdoor air temperature

Standards

DB WB DB WB

Cooling 27˚C 19˚C 35˚C 24˚C

ISO-T1 , JIS C 9612

Heating 20˚C — 7˚C 6 ˚C

(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)

The pipe length is 7.5m.

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5

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'10 • SRK-T-100

Model

Item

SRK50ZJP-S

Indoor unit SRK50ZJP-S Outdoor unit SRC50ZJP-S
Cooling capacity (1) W 5000 (1600 (Min.)~5500 (Max.))
Heating capacity (1) W 5800 (1600 (Min.)~6600 (Max.))
Power supply 1 Phase, 220~240 V, 50Hz

Operation
data (1)

Power
consumption

Cooling

kW

1.56 (0.40~2.20)

Heating 1.60 (0.42~2.10)

Running
current

Cooling

A

7.2 / 6.9 / 6.6 (220/ 230/ 240 V)

Heating 7.3 / 7.0 / 6.7 (220/ 230/ 240 V)

Inrush current 7.3 / 7.0 / 6.7 (220/ 230/ 240 V)

COP

Cooling 3.21
Heating 3.63

Noise
level

Cooling

Sound level dB(A) Hi : 47 Me : 37 Lo : 26 51
Power level dB 63 61

Heating

Sound level dB(A) Hi : 47 Me : 40 Lo : 33 53

Power level dB 62 63
Exterior dimensions (Height x Width x Depth) mm 268 x 790 x 224 640 x 800 (+71) x 290
Exterior appearance

(Munsell color)

Fine snow

(8.0Y 9.3/0.1) near equivalent

Stucco white

(4.2Y 7.5/1.1) near equivalent

Net weight kg 8.5 42

Refrigerant
equipment

Compressor type & Q'ty — 5RS132XAB21 (Rotary type) x 1
Motor (Starting method) kW — 1.50 (Line starting)
Refrigerant oil 0.37 (FV50S)
Refrigerant (3) kg R410A 1.35 (Pre-Charged up to the piping length of 15m)
Heat exchanger Slit fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control

Air handling
equipment

Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 34

Air flow

Cooling

CMM

Hi : 11.0 Me : 7.6 Lo : 4.7 36.0

Heating Hi : 13.8 Me : 10.7 Lo : 8.3 36.0

Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —

Shock & vibration absorber — Cushion rubber (for compressor)

Operation
control

Operation switch Wireless-Remote control —
Room temperature control Microcomputer thermostat —

Operation Display

RUN : Green, TIMER : Yellow, HI POWER : Green,

ECONO : Orange

Safety devices

Compressor overheat protection, Overcurrent protection,

Frost protection, Serial signal error protection, Fan motor error protection,

Heating overload protection (High pressure control), Cooling overload protection

Installation
data

Refrigerant piping size (O.D) mm Liquid line :φ6.35 (1/4") Gas line :φ12.7 (1/2")
connecting method Flare connecting

Attached length of piping m

Liquid line : 0.4

Gas line : 0.33

—

Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length

m

Max. 25

Vertical height difference between
outdoor unit and indoor unit

Max. 15 (Outdoor unit is higher)

Max. 15 (Outdoor unit is lower)
Drain hose Connectable (VP 16) —
Power cable 2m (3 Cores wih Earth)
Recommended breaker size A 16

Connection wiring

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

Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Optional parts —

Adapted to RoHS directive

RWA000Z232

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

Item

Operation

Indoor air temperature Outdoor air temperature

Standards

DB WB DB WB

Cooling 27˚C 19˚C 35˚C 24˚C

ISO-T1 , JIS C 9612

Heating 20˚C — 7˚C 6 ˚C

(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220/230/240V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)

The pipe length is 7.5m.

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6

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'10 • SRK-T-100

2. EXTERIOR DIMENSIONS

(1) Indoor units

Models SRK25ZJP-S, 35ZJP-S, 50ZJP-S

RKX0 00Z50 7

G

Terminal block

F

Wireless remote controller

Outlet for down piping

㧔Refer to the above view㧕

Space for installation and service when viewing from the front

D A

B

E

C

Hole on wall for right rear piping
Hole on wall for left rear piping

Gas piping

Outlet for wiring

Drain hose

Liquid piping

F

E

C
D

B

Symbol

A

㧔Ǿ65㧕

VP16

Ǿ6.35㧔1㧛4"㧕㧔Flare㧕

Content

㧔Ǿ65㧕

Ǿ9.52㧔3㧛8"㧕㧔Flare㧕

Outlet for piping㧔on both side㧕

G

Ǿ12.7㧔1㧛2"㧕㧔Flare㧕

Model 25,35
Model 50

Note㧔1㧕The model name label is attached

ޓޓޓon the underside of the panel.

60

150

17.3

788

2760

45

60

45

790

268

17.5

3224

45

609

200

39.3

43.244.5

102.5 585 102.5

206.5 450 133.5

138 450 202

44.5

7.5252.28.3

㧔Service space㧕

65

㧔Service space㧕

15

50

㧔

Service space

㧕

100

㧔Service space㧕

53.5

380.6

448.6

520

53.5

Installation plate

Unit

Unit:mm

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7

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'10 • SRK-T-100

A

RCV0 00Z00 6

(2) Outdoor units

Models SRC25ZJP-S, 35ZJP-S

Notes
㧔1㧕 It must not be surrounded by walls on the four sides.
㧔2㧕 The unit must be fixed with anchor bolts. An anchor bolt must not
protrude more the 15mm.
㧔3㧕 Where the unit is subject to strong winds, lay it in such
a direction that the blower outlet faces perpendicularly
to the dominant wind direction.

㧔4㧕 Leave 1m or more space above the unit.
㧔5㧕 A wall in front of the blower outlet must not exceed the units height.
㧔6㧕 The model name label is attached on the lower right comer of the front panel.

L4

L3

L1

Intake

Service
space

Intake

Outlet

Minimum installation space

L2

L2
L3
L4

L1

100
100
250

Open

㧵 㧵㧵

Open

250

80

280

㧵㧵㧵

280

Open

80

75

Examples of

Dimensions

installation

㧵㨂

180

Open

80

Open

Ǿ9.52㧔3㧛8"㧕㧔Flare㧕

Content

C Pipe㧛cable draw-out hole

D

E Anchor bolt hole

Drain discharge hole

Symbol

B

A Service valve connection㧔gas side㧕

M10 × 4places

Ǿ20 × 2places

Service valve connection㧔liquid side㧕

Ǿ6.35㧔1㧛4"㧕㧔Flare㧕

Unit:mm

A

C

Terminal block

B

40°

40°

33.5

138.4

97.7

15.8

540

290

42.5

69.4

63.4

390.6

390.6

111.6 510

158.4

12

50.6

17.9

780 61.9

312.5

351.6

14.8 24.3

D

E

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8

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'10 • SRK-T-100

Model SRC50ZJP-S

RC T 000Z 005

L2

Intake

Outlet

Intake

L3

L1

Minimum installation space

Service
space

( )

L4

L2
L3
L4

L1

100
100
250

Open

Ｉ ＩＩ

Open

250

80

280

ＩＩＩ

280

Open

80

75

Examples of

Dimensions

installation

ＩＶ

180

Open

80

Open

φ12.7（1／2"）（Flare）

Content

C Pipe／cable draw-out hole

D

E Anchor bolt hole

Drain discharge hole

Symbol

B

A Service valve connection（gas side）

M10 × 4places

φ20 × 5places

Service valve connection（liquid side）

φ6.35（1／4"）（Flare）

Notes

（1） It must not be surrounded by walls on the four sides.

（2） The unit must be fixed with anchor bolts. An anchor bolt must not

protrude more the 15mm.
（3） Where the unit is subject to strong winds, lay it in such
a direction that the blower outlet faces perpendicularly
to the dominant wind direction.

（4） Leave 1m or more space above the unit.
（5） A wall in front of the blower outlet must not exceed the units height.
（6） The model name label is attached on the right side of the unit.

A

C

Terminal block

B

93 42.5

640

800

89 510 201

327.3

83.5

290

43.5

327.3 50.6

12

24.3312.514.8

71.2

17.9

40°

40°

33.5148.4

12.4

351.6

38.6

90.6

520.6 161

35.6

D

E

Unit:mm

-

9

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'10 • SRK-T-100

(3) Wireless remote controller

Unit: mm

60

17.3

150

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10

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'10 • SRK-T-100

3. ELECTRICAL WIRING

(1) Indoor units

Models SRK25ZJP-S, 35ZJP-S, 50ZJP-S

RW A 000Z 228

G

J

R-AMP

WIRELESS

DISPLAY

N

CNGCNE

250V 3.15A

CNU

CNM

52C

52C-3

52C-4

BACK UP SW

5

U

M

M

CNF

FMSM

HD

F

Va

DS

T

※

Blue

BlackBK

Red

BL

RD

WhiteWH

Yellow／Green

Y／G

ColorMark

Heat exch. sensor

Fan motor

Room temp. sensor

Flap motor

Diode stackDS
FuseF

Connector

CNE-CNU

FM

Terminal blockT

Description

Item

VaristorVa

SM

ThI
Th2

YellowY

Humidity sensor

HD

BrownBR

Light blueLB

BR

Y／G

RD

Y

WH

Y／G

RD

BK

BOX

CONTROL

3

2／N

WH

6

TO OUTDOOR UNIT

1

BOARD

PRINTED CIRCUIT

～220／230／240V 50Hz

POWER SOURCE

BR

LB

Y／G

BK

1 3 4 5

RDBKBL

EXCHANGER

HEAT

WH

8 2 2 2

t゜

※SRK35, 50 MODELS ONLY

ThI Th2

t゜

-

11

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'10 • SRK-T-100

RW C 000Z 236

(2) Outdoor units

Models SRC25ZJP-S, 35ZJP-S

3

1

2

[

]

N

（BK）

C-2

G1

（RD）

（Y／G）

S.IN

（WH）

R.IN

（BK）

（WH）

（RD）

PWB ASSY

250V 20A

F2

F3 250V 1A

++

F4

250V 10A

F1

250V 2A

CIRCUIT

PAM

SWITCHING POWER

CIRCUIT

N

P

W

V

U

TRANSISTOR

POWER

W

V

U

FILTER

NOISE

CN20S

CNTH

CNEEV

CNFAN

M

M

3～

250V 15A

（Y／G）

T1

T2

（OR）

（Y）

M

t゜

20S

TH1TH2 TH3

EEV

FMo

CM

t゜ t゜

t゜

L

TERMINAL

N

1

3

2

BLOCK

T

TO INDOOR UNIT

POWER WIRES

SIGNAL WIRE

POWER SOURCE
～220／230／240V 50Hz

Color

RD

Mark

OrangeOR

Yellow／Green

Y／G

BlackBK

YellowY

WhiteWH

Red

DescriptionItem

Connector

Electric expansion valve（coil）EEV

Fan motorFMo

ReactorL

Terminal blockT

Compressor motorCM

Solenoid valve for 4 way valve20S

Heat exchanger sensor（outdoor unit）TH1

Outdoor air temp.sensorTH2

TH3 Discharge pipe temp.sensor

CN20S
CNTH
CNEE

-

12

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'10 • SRK-T-100

RW C 000Z 237

Model SRC50ZJP-S

3

1

2

[

]

N

M

T2

T1

S

（BK）

（WH）

（RD）

V

W

U

PWB ASSY （MAIN）

M

M

+ +

R

TRANSISTOR

POWER

CIRCUIT

SWITCHING POWER

250V 2A

F1

250V 20A

F2

F3 250V 1A

W

V

U

P

NU
NV
NW

CNTH

CNEEV

CNFAN

t゜

3～

+

ACTIVE
FILTER
UNIT

250V 20A

F8

（OR）

（Y）

S-2

t゜ t゜

（BK）

（WH）

（WH）

（BK）

PWB ASSY （SUB）

S-1

CNSUB

CNMAIN

S

R

（BK）

（WH）

G1

（Y／G）

IN

IN

S

R

O

O

250V 20A

FUSE

2

1

N

3

（Y／G）

CN20S

C-2

（RD）

20S

（RD）

T

TERMINAL

TH1 TH2 TH3

EEV

FMo

CM

BLOCK

L

TO INDOOR UNIT

POWER WIRES

SIGNAL WIRE

POWER SOURCE
～220／230／240V 50Hz

Color

RD

Mark

OrangeOR

Yellow／Green

Y／G

BlackBK

YellowY

WhiteWH

Red

DescriptionItem

Connector

Electric expansion valve（coil）EEV

Fan motorFMo

ReactorL

Terminal blockT

Compressor motorCM

Solenoid valve for 4 way valve20S

Heat exchanger sensor（outdoor unit）TH1

Outdoor air temp.sensorTH2

TH3 Discharge pipe temp.sensor

CN20S
CNTH
CNEE

-

13

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'10 • SRK-T-100

(Outdoor Unit)

Model SRC25ZJP-S
Noise

Level

Cooling 46 dB(A)
Heating 48 dB(A)

(Indoor Unit)

Model SRK25ZJP-S
Noise

Level

Cooling 36 dB(A)
Heating 35 dB(A)

×

......

Cooling, Heating

×

......

Cooling, Heating

Condition ISO-T1,JIS C9612

4. NOISE LEVEL

Model SRK25ZJP-S

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

N50

N30

N40

N60

N70

N20

N50

N30

N40

N60

N70

N20

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

ISC09164

-

14

-

'10 • SRK-T-100

(Outdoor Unit)

Model SRC35ZJP-S
Noise

Level

Cooling 49 dB(A)
Heating 51 dB(A)

(Indoor Unit)

Model SRK35ZJP-S
Noise

Level

Cooling 39 dB(A)
Heating 41 dB(A)

×

......

Cooling, Heating

×

......

Cooling, Heating

Condition ISO-T1,JIS C9612

Model SRK35ZJP-S

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

N50

N30

N40

N60

N70

N20

N50

N30

N40

N60

N70

N20

ISC09164

-

15

-

'10 • SRK-T-100

(Indoor Unit)

Model SRK50ZJP-S
Noise

Level

Cooling 47 dB(A)
Heating 47 dB(A)

×

......

Cooling, Heating

×

......

Cooling, Heating

Condition ISO-T1,JIS C9612

Model SRK50ZJP-S

N50

N30

N40

N60

N70

N20

N50

N30

N40

N60

N70

N20

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

10

20

30

40

50

60

70

63 125 250 500 1000 2000 4000 8000

10

20

30

40

50

60

70

Sound Pressure Level (dB)

(standard 2×10

-5

Pa )

Mid Octave Band frequency (Hz)

ISC09164

(Outdoor Unit)

Model SRC50ZJP-S
Noise

Level

Cooling 51 dB(A)
Heating 53 dB(A)

-

16

-

'10 • SRK-T-100

'09•SRK-DB-087D

5 PIPING SYSTEM

Models SRK20ZJ-S, 25ZJ-S

Model SRK35ZJ-S

Humidity
sensor

(HD)

5. PIPING SYSTEM

Model SRK25ZJP-S

Model SRK35ZJP-S

-

17

-

'10 • SRK-T-100

Model SRK50ZJP-S

Indoor unit

Outdoor unit

Flare
connection

Flare connection

Liquid
pipe

(φ6.35)

Gas pipie
(φ12.7)

Service valve

Heat
exchanger

Electronic
expansion valve

(Liquid)

Strainer

Receiver

Muffler

Capillary tube

Outdoor air
temp. sensor

Muffler

Muffler

Compressor

Discharge pipe
temp. sensor

Cooling cycle

Heating cycle

Check joint

4way valve

Service valve

Heat
exchanger
sensor

(Th2)

(TH3)

Room temp.
sensor

(Th1)

(

Gas

)

(TH2)

Heat
exchanger
sensor

(TH1)

(EEV)

Capillary tube

Heat
exchanger

Humidity
sensor

(HD)