Mitsubishi Electric Mr. Slim SUZ-KA25VA6 Manuale operativo

TECHNICAL & SERVICE MANUAL

R410A

[Model Name]

SUZ-KA25VA6

SUZ-KA35VA6

SUZ-KA50VA6

SUZ-KA60VA6

SUZ-KA71VA6

CONTENTS

COMBINATION OF INDOOR AND OUTDOOR UNITS

..... 2

2. PARTS 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............. 12

8. ACTUATOR CONTROL................................... 16

9. SERVICE FUNCTIONS ................................... 17

10. TROUBLESHOOTING..................................... 17

11. DISASSEMBLY PROCEDURE........................ 34

Indication of

model name

Note:

•This service manual

describes service data of

the outdoor units only.

HFC

utilized

R410A

SUZ-KA25VA6.TH

SUZ-KA35VA6.TH

PARTS CATALOG (TCB004)

No. TCH004

November 2016

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

[Service Ref.]

SUZ-KA25VA6.TH SUZ-KA25VA6.TH-ER

SUZ-KA25VA6.TH-ET

SUZ-KA35VA6.TH SUZ-KA35VA6.TH-ER

SUZ-KA35VA6.TH-ET

SUZ-KA50VA6.TH SUZ-KA50VA6.TH-ER

SUZ-KA50VA6.TH-ET

SUZ-KA60VA6.TH SUZ-KA60VA6.TH-ER

SUZ-KA60VA6.TH-ET

SUZ-KA71VA6.TH SUZ-KA71VA6.TH-ER

SUZ-KA71VA6.TH-ET

TCH004

1COMBINATION OF INDOOR AND OUTDOOR UNITS

INDOOR UNIT SERVICE MANUAL

Indoor unit Outdoor unit

Heat pump type

SUZ-

Service Ref. Service

manual No.

KA25VA6.TH

KA25VA6.TH-ER

KA25VA6.TH-ET

KA35VA6.TH

KA35VA6.TH-ER

KA35VA6.TH-ET

KA50VA6.TH

KA50VA6.TH-ER

KA50VA6.TH-ET

KA60VA6.TH

KA60VA6.TH-ER

KA60VA6.TH-ET

KA71VA6.TH

KA71VA6.TH-ER

KA71VA6.TH-ET

Heat pump without electric heater

SLZ-KF25VA2.TH(-ER) OCH616

OCB616

────

SLZ-KF35VA2.TH(-ER) ─ ───

SLZ-KF50VA2.TH(-ER) ── ──

SLZ-KF60VA2.TH(-ER) ─── ─

SEZ-KD25VAQR2.TH(-ER) HWE1008

BWE102040

(BWE014090)

────

SEZ-KD35VAQR2.TH(-ER) ─ ───

SEZ-KD50VAQR2.TH(-ER) ── ──

SEZ-KD60VAQR2.TH(-ER) ─── ─

SEZ-KD71VAQR2.TH(-ER) ────

SEZ-KD25VALR2.TH

HWE0711

BWE012050

────

SEZ-KD35VALR2.TH ─ ───

SEZ-KD50VALR2.TH ── ──

SEZ-KD60VALR2.TH ─── ─

SEZ-KD71VALR2.TH ────

PLA-RP35EA.UK OCH625

OCB625

─ ───

PLA-RP50EA.UK ── ──

PLA-RP60EA.UK ─── ─

PLA-RP71EA.UK ────

PCA-RP35KAQR2(-ER) OCH491

OCB491

─ ───

PCA-RP50KAQR2(-ER) ── ──

PCA-RP60KAQR2(-ER) ─── ─

PCA-RP71KAQR2(-ER) ────

PEAD-RP35JAQR2.UK

BWE014160

─ ───

PEAD-RP50JAQR2.UK ── ──

PEAD-RP60JAQR2.UK ─── ─

PEAD-RP71JAQR2.UK ────

PEAD-RP35JALQR2.UK ─ ───

PEAD-RP50JALQR2.UK ── ──

PEAD-RP60JALQR2.UK ─── ─

PEAD-RP71JALQR2.UK ────

TCH004

2PARTS NAMES AND FUNCTIONS

SUZ-KA25VA6

SUZ-KA35VA6

SUZ-KA50VA6

SUZ-KA60VA6

SUZ-KA71VA6

Air outlet

Drain outlet

Piping

Drain hose

Air inlet

(back and side)

Model SUZ-KA·VA6

Drain socket 1

Piping

Air outlet

Drain outlet

Air inlet

(back and side)

Drain hose

TCH004

SPECIFICATION

Note: Test conditions are based on JIS B8616

Cooling : Indoor D.B. 27°C W.B. 19°C

Outdoor D.B. 35°C

Heating : Indoor D.B. 20°C

Outdoor D.B. 7°C W.B. 6°C

Refrigerant piping length (one way): 7 m

*Measured under rated operating frequency.

Outdoor model

SUZ-KA25VA6 SUZ-KA35VA6 SUZ-KA50VA6 SUZ-KA60VA6 SUZ-KA71VA6

Power supply Single phase 230 V, 50 Hz

Compressor

Model KNB073FKFMC KNB092FFAMC SNB130FGBMT SNB172FEKMT

Output W 550 650 900 1,200

Current* Cooling A2.76 4.06 5.58 6.62 8.02

Heating 3.24 4.09 5.75 6.37 8.13

Refrigeration oil

(Model)

L 0.31 (FV50S) 0.27 (FV50S) 0.35 (FV50S) 0.4 (FV50S)

Fan motor Model RC0J50-NA RC0J60-BC RC0J60-BC

Current* Cooling A0.24 0.29 0.84 0.84 0.83

Heating 0.27 0.28 0.93 0.93 0.82

Dimensions W × H × D mm 800 × 550 × 285 840 × 880 × 330

Weight kg 30 35 54 50 53

Special remarks

Air

ﬂow*

Cooling High

m³/h

1,806 2,868 3,492 3,426

Med. 1,806 2,868 3,066 3,006

Low 1,170 1,038 1,602 1,692 1,512

Heating High 2,106 2,778 2,952 2,892

Med. 1,806 1,770 2,778 2,952 2,892

Low 1,452 1,326 2,124 2,226 2,280

Sound pressure level*

Cooling

dB(A)

47 49 52 55

Heating 48 50 52 55

Sound power level 58 62 65 65 69

Fan

speed

Cooling High

rpm

740 810 840 950

Med. 740 810 840

Low 740 490 480 450

Heating High 860 900 810

Med. 740 770 810

Low 600 610 620 650

Fan speed regulator 3

Refrigerant ﬁlling capacity

(R410A) kg 0.80 1.15 1.60 1.60 1.80

TCH004 5

Specifications and rating conditions of main electric parts

Model

Item

SUZ-KA25VA6 SUZ-KA35VA6 SUZ-KA50VA6 SUZ-KA60VA6 SUZ-KA71VA6

Smoothing

capacitor

(C61) — — 620 μF 420 V — —

(C62, C63) 620 μF 420 V 620 μF 420 V 620 μF420 V — —

(CB1, 2, 3) — — — 560 μF 450 V 560 μF 350 V

Diode module (DB61) 15 A 600 V 15 A 600 V 25 A 600 V — —

Fuse

(F61) T20 A L250 V T20 A L250 V T20 A L250 V — —

(F62) — — — T20A L250V T20A L250V

(F701, F801, F901)

T3.15 A L250 V T3.15 A L250 V T3.15 A L250 V — —

(IC700) 15 A 600 V 15 A 600 V 20 A 600 V — —

Inteligent power

module (IPM) — — — 20 A 600 V

(IC932) 8 A 600 V 8 A 600 V 8 A 600 V 5 A 600 V 5 A 600 V

Power factor

controller (PFC) — — — 20A 600V 20A 600V

(IC820) 20 A 600 V 20 A 600 V 20 A 600 V — —

Expansion valve

coil (LEV) 12 V DC

Reactor (L61) 18 mH 23 mH 23 mH — —

(L) — — — 340 μH 20 A 340 μH 20 A

Current-Limiting

PTC thermistor (PTC64, PTC65) 33Ω

Terminal block (TB1, TB2) — — — 3P 3P

(TB) 5P 5P 5P — —

Relay

(X63) 3 A 250 V 3 A 250 V 3 A 250 V — —

(X64) 20 A 250 V

(X601) — — — 3 A 250 V 3 A 250 V

(X602) — — — 3 A 250 V 3 A 250 V

R.V. coil (21S4) 220–240 V AC

TCH004

NOISE CRITERIA CURVES

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

COOLING

FUNCTION SPL(dB(A)) LINE

High

Med.

FAN SPEED

HEATING

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

NC-10

SUZ-KA25VA6.TH

SUZ-KA25VA6.TH-ER

SUZ-KA25VA6.TH-ET

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

COOLING

FUNCTION SPL(dB(A)) LINE

FAN SPEED

HEATING

High

Med.

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

NC-10

SUZ-KA35VA6.TH

SUZ-KA35VA6.TH-ER

SUZ-KA35VA6.TH-ET

COOLING

FUNCTION SPL(dB(A)) LINE

High

FAN SPEED

HEATING

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

NC-10

SUZ-KA50VA6.TH

SUZ-KA50VA6.TH-ER

SUZ-KA50VA6.TH-ET

Test conditions

Cooling: Dry-bulb temperature 35°C

Heating: Dry-bulb temperature 7°C

Wet-bulb temperature 6°C

OUTDOOR UNIT

MICROPHONE

1 m

SUZ-KA60VA6.TH SUZ-KA71VA6.TH

SUZ-KA60VA6.TH-ER SUZ-KA71VA6.TH-ER

SUZ-KA60VA6.TH-ET SUZ-KA71VA6.TH-ET

OCTAVE BAND SOUND PRESSURE LEVEL, 0dB re 0.0002 MICRO BAR

COOLING

FUNCTION SPL(dB(A)) LINE

High

FAN SPEED

HEATING

10 63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

BAND CENTER FREQUENCIES, Hz

NC-10

TCH004

5OUTLINES AND DIMENSIONS

800

302.5

500 Bolt pitch for installation

150

22.3

Handle

550

280

164.5

99.5

170.5

23 Service panel

Service port

285

344.5

400

Air in

Air out

Air in

17.5

Bolt pitch for

installation

304~325

Liquid refrigerant pipe joint

Refrigerant pipe (flared) [6.35

Gas refrigerant pipe joint

Refrigerant pipe (flared) [9.52

43-

35-

2-Oval holes 10×21

REQUIRED SPACE

Basically, leave this space open.

Only if front and both sides are open,

leave 100 mm at minimum.

350mm or more

200mm or more

100mm or more

200 mm or more.

Leave any 2 sides among

right, left or rear open.

Drain hole [42

Unit: mm

SUZ-KA25VA6.TH SUZ-KA35VA6.TH

SUZ-KA25VA6.TH-ER SUZ-KA35VA6.TH-ER

SUZ-KA25VA6.TH-ET SUZ-KA35VA6.TH-ET

TCH004

417.5

Drain hole

175 500

330

Air in

Air out 2-Oval holes 10 21

840

109 81

880

452

Service panel

99.5

164.5

195

Liquid refrigerant pipe joint

Refrigerant pipe (flared)

Ø 6.35...(SUZ-KA50/60VA6)

Ø 9.52...(SUZ-KA71VA6)

Gas refrigerant pipe joint

Refrigerant pipe (flared)

Ø 12.7...(SUZ-KA50VA6)

Ø 15.88...(SUZ-KA60/71VA6)

350 mm or more

100 mm or more

REQUIRED SPACE

Basically, leave this space open.

Only if front and both sides are open,

leave 500 mm at minimum.

100mm or more

500 mm or more.

Leave any 2 sides among

right, left or rear open.

Air in

Bolt pitch for

installation

360

Unit: mm

SUZ-KA50VA6.TH SUZ-KA60VA6.TH SUZ-KA71VA6.TH

SUZ-KA50VA6.TH-ER SUZ-KA60VA6.TH-ER SUZ-KA71VA6.TH-ER

SUZ-KA50VA6.TH-ET SUZ-KA60VA6.TH-ET SUZ-KA71VA6.TH-ET

TCH004 9

6WIRING DIAGRAM

SUZ-KA25VA6.TH SUZ-KA35VA6.TH

SUZ-KA25VA6.TH-ER SUZ-KA35VA6.TH-ER

SUZ-KA25VA6.TH-ET SUZ-KA35VA6.TH-ET

TCH004

SUZ-KA50VA6.TH

SUZ-KA50VA6.TH-ER

SUZ-KA50VA6.TH-ET

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