Friedrich MR24UY3F, MC24Y3F User Manual

SPLIT TYPE

AIR CONDITIONER

CASSETTE

Models

Indoor unit Outdoor unit

type

MC24Y3F MR24UY3F

(60Hz)

CONTENTS

SPECIFICATIONS ...................... 1

DIMENSIONS .......................... 2

REFRIGERANT SYSTEM DIAGRAM ....... 4

CIRCUIT DIAGRAM ..................... 5

7INDOOR PCB CIRCUIT DIAGRAM ........

...... 8OUTDOOR PCB CIRCUIT DIAGRAM

ERROR CONTENTS ....................

DISASSEMBLY ILLUSTRATION ..........13

PARTS LIST .......................... 21

STANDARD ACCESSORIES ............. 23

11

SPECIFICATIONS

TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY

HEATING CAPACITY

COOLING & HEATING

MC24Y3F

MR24UY3F

22,200 / 22,200 BTU/h

24,200 / 24,200 BTU/h

NOISE LEVEL

INDOOR UNIT

OUTDOOR UNIT

HIGH-SPEED

MED-SPEED

LOW-SPEED

COOL

HEAT

45.0 dB

43.0 dB

38.0 dB

53.0 dB

55.0 dB

ELECTRICAL DATA

POWER SOURCE

COOLING

RUNNING CURRENT

HEATING

COOLING

INPUT WATTS

HEATING

COOLING

E.E.R.

HEATING

STARTING CURRENT

MOISTURE REMOVAL

AIRCIRCULATION -High

COMPRESSOR

TYPE

DISCRIMINATION

REFRIGERANT R410A

1 230 / 208 V 60Hz

9.2 / 10.1 A

10.4 / 11.4 A

2.10 / 2.10 kW

2.37 / 2.37 kW

3.10 / 3.10 kW/kW

3.00 / 3.00 kW/kW

9.5 A

3.0 l/hr

1,050 m

3

/hr

Total enclosed type, 4 poles,

Inverter, Twin Rotary

TNB220FPBM9

4 lb 3 oz, 1,900 g

REFRIGERANT CHARGE (R410A)

MAX PIPE LENGTH

MAX PIPE HEIGHT

Pipe Length

FULL CHARGE
AMOUNT

ADDITIONAL REFRIGERANT

49 ft. (15 m)

66 ft. (20 m)

98 ft. (30 m)

131 ft. (40 m)

164 ft. (50 m)

4 lb 3 oz (1,900 g)

4 lb 10 oz (2,100 g)

5 lb 8 oz (2,500 g)

6 lb 6 oz (2,900 g)

7 lb 5 oz (3,300 g)

0.424 oz / ft. (40g/m)

50 m

30 m

FAN MOTOR

DISCRIMINATION

HIGH-SPEED
INDOOR UNIT
( Cool / Heat )

OUTDOOR UNIT
( Cool / Heat )

MED-SPEED

LOW-SPEED

S-LOW-SPEED

DISCRIMINATION

HIGH-SPEED

DIMENSIONS

INDOOR UNIT HxWxD

HxWxDOUTDOOR UNIT

WEIGHT

INDOOR UNIT Gross / Net

Gross / NetOUTDOOR UNIT

MFA-24RPT

490 r.p.m. / 440 r.p.m.

430 r.p.m. / 380 r.p.m.

360 r.p.m. / 330 r.p.m.

- / 250 r.p.m.

MFE-45ROM

850 r.p.m. / 900 r.p.m.

9-3/4" x 32-3/4" x 32-3/4" inch

( 246 x 830 x 830 mm )

32-3/4" x 35-1/2" x 13" inch

( 830 x 900 x 330 mm )

44 kg / 34 kg

70 kg / 64 kg

2006.05.25 1

DIMENSIONS

INDOOR UNIT
unit : inch (mm)

1-3/16" (30)

9-3/4" (246)

9-1/4" (235)

37" (940)

Drain inside Dia. ø1-1/4" (ø32)

outside Dia. ø1-1/2" (ø37)

11-3/4" (298.5)

2-3/8" (60)

12" (305.5)

9-25/32"

(248.5)

2-3/4" (70)

37" (940)

3-15/16" (100)

7-7/8" (200)

2-3/8" (60)

29-17/32" (750)

32-3/4" (830)

11-3/4" (298.5)

12" (305.5)

9-25/32"

(248.5)

29-17/32" (750)

2-3/4" (70)

32-3/4" (830)

3-15/16" (100)

2006.05.18 2

OUTDOOR UNIT
unit : inch (mm)

32-3/4" (830)

7/8" (21)

35-1/2" (900)

3/8"

(9)

3"(77)

1-1/4"
(31)

13" (330)

15-3/4" (400)

1/2"
(12)

17-3/8" (440)

Air Flow

14-5/8" (370)

25-5/8" (650)

2006.05.18 3

6-3/4" (170)

3-7/8"

(99)

5-3/4" (147)

7-3/4" (196)

REFRIGERANT SYSTEM DIAGRAM

OUTDOOR UNIT

Condenser

Pressure
Check Valve

High Pressure
Switch

4-way

Muffler

Valve

Compressor

Expansion
Valve

INDOOR UNIT

Refrigerant Pipe

15.88mm (5/8")

Charging
Valve

Evaporator

Accumulator

Refrigerant Pipe

9.52mm (3/8")

Strainer

Strainer

: COOL

: HEAT

2006.05.18 4

Charging Valve

CIRCUIT DIAGRAM

INDOOR UNIT

PIPE TEMPERATURE THERMISTOR

ROOM TEMPERATURE THERMISTOR

TO REMOTE CONTROL UNIT

TERMINAL

3

1

2

POWER SUPPLY

PCB ASSY

L

N

GREEN

BLACK

WHITE

G

1

RED

2

(N)

RED

WHITE

BLACK

Use T3.15A-250V

Fuse on F101

1

2
3

BLACK

WHITE

RED

1
2
3

3

TERMINAL

GRAY

BLACK

GRAY

1212

12

CN7 CN8

CN17

12

CONTROLLER PCB ASSY

1

1

2

2

CN1

3

3

BLACK

1
2
3
4
5

1
2

CN15 CN10

3

1
2

1
2

CN16 CN6

3

1
2
3
5
6

121

CN4 CN5

BROWN BROWN

1

RED RED

2

ORANGE

3
4

WHITE WHITE

5

BLACK

1
2

BLACK

3

BLACK

1

BLACK

2

RED

1

WHITE

2

BLACK

3

BLACK

1

WHITE

2

RED

3

PURPLE

5

BLUE

6

WHITE

WHITE

2

1

1

2

2

3

3

4

4

5

5

BLACK

1

1

2

2

BLACK

3

3

YELLOW

121

YELLOW

2

FAN MOTOR

FM

ORANGE

YELLOWYELLOW

STEP MOTOR

M

FLOAT SWITCH

DRAIN PUMP MOTOR

M

GREEN /
YELLOW

FAN MOTOR
CAPACITOR

TO OUTDOOR UNIT

2006.05.18 5

OUTDOOR UNIT

COMPRESSOR

BLACK

BLACK

CHOKE COIL

PIPE TEMPERATURE
THERMISTOR

DISCHARG TEMPERATURE
THERMISTOR

CONNECTOR

RED RED

U

WHITE

V

W

BLACK

ACTIVE

FILTER

MODULE

TERMINAL

WHITE

BROWN

L1

L2

+

-

EMI FILTER

WHITE

BLACK

BROWN

1

RED

2

ORANGE

3
4
5

YELLOW

6

P

N

EMI FILTER

1T

YELLOW

2T

BLACK

BLACK

BROWN

12 12 12 12 12

CN21

CN22

CN23

U

W305

V

BLUE

W304

W

W303

1

CONTROLLER PCB ASSY

2

CN407

3
4
5

W12

W13

FUSE

F4 T 5A-250V

FUSE

F2 T 3.15A-250V

RED

W16

W17

W10

W11

CN1

1

BLUE

BROWN

BLACK

THERMISTOR

COMPRESSOR TEMPERATURE
THERMISTOR

HEAT SINK TEMPERATURE
THERMISTOR

CN25

CN26

RED

OUTDOOR TEMPERATURE

1

CN37

CN30

CN802

CN27

432

CN34

1

32

W200

RED

2

BLACK

1
2

BLACK

3

RED

1
2

BLACK

3

WHITE

4

YELLOW

5

BLUE

6

RED

1

BROWN

2

BLUE

3

ORANGE

4

YELLOW

5

WHITE

6

HIGH PRESSURE SWITCH

4WV

SOLENOID COIL

FM FANMOTOR

EXPANSION VALVE COIL

EV

WHITE

BLACK

TM102

POWER SUPPLY PCB ASSY

TM101

W3

GREEN

1

GG

EARTH EARTH

2006.05.18 6

BLACK

BROWN

RED

32

CN1

W6 W7

BLACK

13LN

WHITE

W9 W8

WHITE

2 (N)

BLACK

W4

BLACK

W5

WHITE

RED

INDOOR PCB CIRCUIT DIAGRAM

Model : MC24Y3F

CONTROLLER PCB ASSEMBLY

K01AL-050LHSE-C1

2006.05.25 7

OUTDOOR PCB CIRCUIT DIAGRAM

Model : MR24UY3F

POWER SUPPLY PCB ASSY

K04BA-0500HUE-P0

INVERTER ASSEMBLY

EZ-005FHUE

CONTROLLER PCB ASSY

K04AW-0502HUE-C1

2006.05.25 8

Model : MR24UY3F

CONTROLLER PCB ASSEMBLY

K04AW-0502HUE-C1

600/450V x 4

2006.05.25 9

Model : MR24UY3F

POWER SUPPLY PCB ASSEMBLY

K04BA-0500HUE-P0

TM100

POWER SOURCE
230V
60Hz

TO INDOOR UNIT

EARTH

AC VOLT OUT

BLACK

WHITE

W4

W5

W6

BLACK

W7

WHITE

W3

GREEN

W8

BLACK

W9

WHITE

L1

RCH4730-021PF07

B

VA101

470V

<TNR>

VA102

470V

C101

3.3
<LE>

<TNR>

B

SA100
RA-302M

B

B

B

B

B

C104

0.033
<YE>
C105

0.033
<YE>

C106

3.3
<LE>

L2

N200500K1D7C

C107

3.3
<LE>

CT1
CT-1B

D60

5V

DAN217U

220/16V

R60 1.0K
<1/10W>
(1%)

C60

<PJ>

L4

RCH4730-021PF07

+

VR1
B2K

R61 3.74K
<1/10W>
(1%)

C111

3.3
<LE>

R68 22K
<1/10W>

C64

0.1
<F>

C112

0.015
<YE>
C113

0.015
<YE>

C65

0.1
<F>

5V

TM101

TM102

CN1
B3B-XASK-1-A

WHITE

1

2

3

CT OUT

2006.05.25

10

ERROR CONTENTS
(indoor unit)

(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button simultane-

ously for 2 seconds or more to start the test run.

Test run display

(3) Press the start/stop button to stop the test run.

[SELF-DIAGNOSIS]

When the error indication "E:EE" is displayed, follow the following items to
perform the self-diagnosis. "E:EE" indicates an error has occurred.

1. REMOTE CONTROLLER DISPLAY

(1) Stop the air conditioner operation.

(2) Press the set temperature buttons

onds or more to start the self-diagnosis.
Refer to the following tables for the description of each error code.

Unit number (usually 0)

SUMOTUWETH FR

simultaneously for 5 sec-

Error code

SA

Error code Error contents

13
14
15
16
17

18

19
1A
1b

1c
1d
1E
1F

Outdoor signal abnormal

Excessive outdoor pressure (permanent stop)

Compressor temperature sensor

Pressure switch error

IPM error

CT error

Active filter module (AFM) error

Compressor does not operate

Outdoor unit fan error

Communication error
(inverter multicontroller)

2 way valve sensor error

Expansion valve error

Connection indoor unit error

Ex. Self-diagnosis

(3) Press the set temperature buttons simultaneously for 5 sec-

onds or more to stop the self-diagnosis.

Error code Error contents

00
01
02
03
04
05
06
08
09

0A

0c
11
12

Communication error
(indoor unit remote controller)

Communication error
(indoor unit

Room temperature sensor open

Room temperature sensor short-circuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor short­circuited

Outdoor heat exchanger temperature sensor

Power source connection error

Float switch operated

Outdoor temperature sensor

Discharge pipe temperature sensor

Model abnormal

Indoor fan abnormal

outdoor unit)

2. CHECKING DRAINAGE

To check the drain, remove the water cover and fill with 2 to 3 of water as
shown in figure.
The drain pump operates when operating in the cooling mode.

Drain pipe

Water cover

Watering pot

2006.05.25 11

ERROR CONTENTS
(outdoor unit)

1. Make a TEST RUN in accordance with the in­stallation instruction sheet for the indoor unit.

2. OUTDOOR UNIT LEDS

When a malfunction occurs in the outdoor unit, the LED on
the circuit board lights to indicate the error. Refer to the fol­lowing table for the description of each error according to the
LED.

LED

1 flash

2 flash

3 flash

4 flash

7 flash

8 flash

9 flash

12 flash

13 flash

14 flash

15 flash

16 flash

lighting

Communication error
(Indoor unit - Outdoor unit)

Discharg pipe temperature sensor

Outdoor heat exchanger temperature sensor

Outdoor temperature sensor

Compressor temperature sensor

Heat sink temperature sensor

Pressure switch abnormal

IPM error

Compressor rotor position cannot detect

Compressor cannot operate

Outdoor fan abnormal (upper fan)

Outdoor fan abnormal (lower fan)

No error

Error contents

2. When the product is operating:

1

Press the PUMP DOWN switch on the outdoor unit.
The LED on the outdoor unit circuit board lights, and
operation stops. At this point, recovery has not been
completed, so do not close the two- and three-way
valves.

The pump down operation (cooling operation) be-

2

gins after three minutes. Close the three-way valve
(liquid) after operation starts.

After2-3minutes, operation stops. Close the three-

3

way valve (gas) within one minute after operations
stops.

The LED will go out three minutes after it stops. Dis-

4

connect the power supply after confirming that the
LED has gone out.

*When the pump down operation is repeated, temporarily disconnect
the power supply after opening the closed valves (both liquid and gas).
Reconnect the power supply after2-3minutes and perform the pump
down operation.

*When the start of the operation after pump down operation has been
completed, temporarily disconnect the power supply after opening the
closed valves (both liquid and gas).
Reconnect the power supply after 2-3 minutes and be sure to perform
a test operation for cooling.

3-way valve
(Liquid)

SPECIAL INSTALLATION
SETTING

PUMP DOWN (Refrigerant collecting operation)

Perform the following procedures to collect the refrigerant
when moving the indoor unit or the outdoor unit.

1. When the product is stopped:

1

Press the PUMP DOWN switch on the outdoor unit.
(The LED on the outdoor unit circuit board lights.)

The pump down operation (cooling operation) be-

2

gins right away. After oparation starts, close the
three-way valve (liquid).

3

After2-3minutes, operation stops. Close the three­way valve (gas) within one minute after operations
stops.

4

The LED will go out three minutes after it stops.Dis­connect the power supply after confirming that the
LED has gone out.

3-way valve
(Gas)

PUMP DOWN SW (SW2)

2006.05.18 12

DANGER

This part (Choke coil) generates high voltages.
Never touch this part.

847

692

690

692

847

543

692

122

847

122

690

543

544

847

122

522

544

122

543

692

847

876-2

122

543

338

226

692

692

847

847

690

DISASSEMBLY
ILLUSTRATION

INDOOR UNIT

705

834-2

240

544

253-A

472-4

544

481

705

545

472-2

542

858

71

777-2

93

481

472-1

487

469

468

472-5

61

2006.05.25 13

472-5

481-1

481

472-3

71

858

777-1

472-5

472-5

710

INDOOR UNIT

462

460-2

467

127

835

479

482

460-1

798

835

334

541-1

244

484

187

815-1

803

465

541

164

168

484

484

814

464

484

563

834-1

514

223

477

476-2

474

197

337-1

457

565

146-2

337-2

146-1

197

337-1

160

457

2006.05.18 14

488

INDOOR UNIT

195

625

815-2

320-1

212

32

380

381-4

34

234

875

236

380

320-1

380

381-4

731-2

2006.05.18 15

INDOOR UNIT

184-1

187

138

235

735

896

2006.05.18 16

OUTDOOR UNIT

1

6

3

4

2

2006.05.25 17

5

OUTDOOR UNIT

10

9

15

13

14

11

17

18

8

2006.05.25 18

OUTDOOR UNIT

26

23

19

22

31

24

25

27

29

20

28

12

12

30

2006.05.24 19

OUTDOOR UNIT

35

38

37

36

33 34

2006.05.18 20

PARTS LIST

INDOOR UNIT

Ref. Part No. Ord. Ref. Part No. Ord.

No MC24Y3F Q'ty No MC24Y3F Q'ty
32 Control Box Assy 67200589 472-3 RFM (Grille)-C 67200562
34 Capacitor (Fan Motor) 67220259 472-4 RFM (Grille)-D 67200563
61 Decoration Plate 67200591 472-5 RFM (Grille)-E 67200564
71 Holder (Hook) 67200557 474 Turbo Fan Assy 67200587

93 Filter 67200555 476-2 Washer(Turbo Fan) 67207465
122 Holder(LouverSupporter) 67200569 479 Float Switch 67200614
127 Drain Hose 67200548 481 Insulation (Grille)-A 67200615
138 Separate wall 67200600 481-1 Insulation (Grille)-B 67200616

146-1 Evaporator-A Assy 67200601 482 Pump Unit 67200617
146-2 Evaporator-B Assy 67200602 484 Hook 67200618

160 Kit (Drain Pan Sub Assy) 67200603 487 Hinge Wire (Grille) 67200619
164 Motor, Induction 67220260 488 Drain Pan Plug 67200550
168 Cabinet-E 67220210 514 ControlBox Cover 67200542

184-1 Thermistor Spring-A 67206400 522 Joint Gear 67200567

187 Clamp No. 1219 67220226 541 TerminalBase 67201709
195 Binder-C 67220227 541-1 TerminalCover 67201708
197 Wind Guide Board 67220261 542 PanelBase 67200575
212 Clamp NK-4N 67200453 543 Holder (Panel Frame) 67500576
223 Control Box 67200590 544 Holder (Panel Base) 67500574
226 Motor Gear 67200572 545 Panel Frame 67200577
234 Room Temp. Thermistor 67203505 563 InnerBox 67200620
235 Pipe Temp. Thermistor 67203506 565 EvaporatorHolderAssy 67200552
236 Controller PCB Assy 67203713 625 Cord Bushing 67230030

240 Remote Control Unit 67200604 692 Joint Shaft 67200622
244 Pipe CoverAssy

253-A Wire Assy 67200606 710 Intake Grille 67200623

320-1 Wire Clamp Metal 67200607 731-2 Holder 67200566

334 Wire Cover 67200608 735 Distributor Assy 67200595

337-1 RFM (Eva. )-A 67200609 777-1 Hook (Grille)-A 67200558
337-2 RFM (Eva. )-B 67200610 777-2 Hook (Grille)-B 67200559

338 Motor Holder 67200573 798 Drain Pump Holder 67200594
380 Locking Spacer 67207455 803 Cabinet-D 67220209

381-4 Spacer 67207464 814 Cabinet-C 67220208

457 RFM (Drain Pan) 67200503 815-1 Terminal-3P 67200585

460-1 Pump Cover-A 67200611 815-2 Terminal-3P 67200584
460-2 Pump Cover-B 67200612 834-1 Cover(Wire)-A 67200596

462 Panel(Top)Assy 67200592 834-2 Cover(Wire)-B 67200597
464 Cabinet-A Assy 67220206 835 Cushion (Pump) 67200545
465 Cabinet-B Assy 67220207 847 LouverSupporter 67200570
467 Drain Port 67200551 858 Spring (Grille) 67200565
468 M10 Nut-A (Large) 67207462 875 Power Supply PCB Assy 67200598
469 M10 Nut-B (Small) 67207463 876-2 Motor,Step 67200599

472-1 RFM (Grille)-A 67200560 896 Coupling Pipe Assy 67200613
472-2 RFM (Grille)-B 67200561

(K01AL-05L1HSE-C1)

67200605

690 Joint-A 67200621

705 LouverAssy 67200593

DescriptionDescription

2006.06.13 21

OUTDOOR UNIT

Ref. Part No. Ord.

No MR24UY3F Q'ty

1 Top Panel Sub Assy 67201640
2 Front Panel 67201601
3 Fan Guard 67201602
4 Grip Side 67201603
5 Service Panel Sub Assy 67201688
6 Right Panel 67201605
8 Propeller Fan Assy 67201607
9 Motor, Induction 67201608

10 Condenser-A Assy 67201609
11 CoilChoke 67201633
12 Strainer Assy 67201611
13 Separate Wall Assy 67201647
14 Cap Foot 67201650
15 Base Assy 67201648
17 3-Way Valve Assy (3/8) 67201614
18 3-Way Valve Assy (5/8) 67201615

19 Check Joint Assy 67201616
20 CompressorAssy 67201689
22 4-Way Valve 67201619
23 Solenoid 67201681
24 Pressure Switch 67201621
25 Inlet Pipe Cond A Assy 67201622
26 Inlet Pipe Cond B Assy 67201690
27 Outlet Pipe Cond A Assy 67201691

28 Expansion Valve Assy 67201692
29 Coil (Expansion Valve) 67201422
30 Distributor 67201693
31 Discharge Pipe A Assy 67201694
33 Terminal2P 67220181
34 Terminal5P 67201632
35 ACTPM 67201627
36 Holder Thermo 67201628

Description

37 Inverter PCB Assy 67201695
38 Power PCB Assy 67201696

---- Fuse 3.15A-250V 67201697

---- Thermistor (Outdoor Temp.) 67201686

---- Heat Exchanger Thermistor 67201698

---- Thermistor (Discharge) 67201635

---- Compressor Thermistor 67201637

---- Thermistor 67201430

---- Heatsink Thermistor 67201685

---- Transformer 67201699

---- Varistor 67201700

---- Arrester 67201701

---- Relay 67201702

---- Relay 67201703

---- Switch Push 67201704

---- Switch Slide 67201705

---- Drain Pipe Assy 67201706

---- Drain Cap 67201707

2006.05.25 22

STANDARD
ACCESSORIES

INDOOR UNIT ACCESSORIES

Name and Shape

Coupler heat
insulation

Q’ty

2

Application

For indoor side pipe joint

Tapping Screw
(flush heads)

Special nut A
(large flange)

Special nut B
(small flange)

Template

Binder
(small)

Blower cover insulation

Hook wire

For installing the remote
controller

2

For installing indoor unit

4

For installing indoor unit

4

For ceiling hole cutting

1

For fixing the remote
controller cord

1

For discharged air

2

For installing intake grille

2

Remote
controller

1

Remote controller cord

For connecting the remote
controller

1

OUTDOOR UNIT ACCESSORIES

Name and Shape Q'ty Application

Drain pipe

Drain cap

For outdoor unit drain

1

piping work (May not be
supplied, depending on
the model.)

5

2006.05.25 23

0605G3089