Friedrich MC12Y3JM User manual

Multi Zone Air Conditioner

SVC MANUAL(Exploded View)

MODEL : A3UW243FA2 [MR24DY3JM]

CAUTION

Before Servicing the unit, read the safety

precautions in General SVC manual.

Only for authorized service personnel.

960-920-05

- 2 -

Only for training and service purposes

1. Specification

Note:

1. Capacities are based on the following conditions:

Cooling: - Indoor Temperature 26.7˚C(80˚F) DB/19.4˚C(67˚F)

- Outdoor Temperature 35˚C(95˚F) DB/23.9˚C(75˚F)

Heating: - Indoor Temperature 21.1˚C(70˚F) DB/15.6˚C(60˚F) WB

- Outdoor Temperature 8.3˚C(47˚F) DB/6.1˚C(43˚F) WB

Piping Length - Interconnecting Piping Length 7.5m(24.6 ft.)

- Level Difference of Zero

2. Wiring cable size must comply with the applicable local and national code.

3. The specification may be subject to change without prior notice for purpose of improvement.

4. For more Capacity(*),refer to the combination table

Conversion Formula

kW = Btu/h class X 0.0002931

cfm = CMM x 35.3

Power Supply V, Ø, Hz

Capacity(*) Btu/h class

Current Running Current A

Fan Motor Type

Fan Type

Motor Output(W) x No. of Unit

Air Flow Rate CMM

(H / M / L) CFM

External Static Pressure mmAq

Capacitor μF / Vac

Drive

Coil Row x Column x FPI

Dimensions Body mm(inch)

(W x H x D) Decorative Panel mm(inch)

Net Weight Body kg (lbs)

Decorative Panel kg (lbs)

Sound Level (H / M / L) dB(A)+3

Piping Liquid mm (inch)

Connections Gas mm (inch)

Drain(OD/ID) mm(inch)

Safety Devices

Referigerant

Referigerant Control

Transmission Interunit Cable No. x AWG

Model

Decoration Panel Name

AMNW12GTRA0[MC12Y3JM]

PT-UQC

AMNW18GTQA0[MC18Y3JM]

PT-UQC

Indoor unit type Ceilling Cassette - 4way

208/230, 1, 60 208/230, 1, 60

12,000 18,000

0.25 0.25

BLDC BLDC

Turbo Fan Turbo Fan

43 x 1 43 x 1

9.5 / 8.0 / 7.0 13.0 / 12.0 / 11.0

335 / 283 / 247 459 / 424 / 388

Direct Drive Direct Drive

2R x 8C x 18 2R x 10C x 18

570 × 214 × 570 (22-7/16 x 8-7/16 x 22-7/16)

570 × 256 × 570 (22-7/16 x 10-3/32 x 22-7/16)

700 x 22 x 700 (27-9/16 x 7/8 x 27-9/16) 700 x 22 x 700 (27-9/16 x 7/8 x 27-9/16)

14.0 (30.9) 15.0 (33.1)

3.0 (6.6) 3.0 (6.6)

38/ 35/ 32 38/ 37/ 34

6.35 (1/4) 6.35 (1/4)

9.52 (3/8) 12.7 (1/2)

32.0(1-1/4) / 25.0(1) 32.0(1-1/4) / 25.0(1)

Fuse, thermal protector for fan motor Fuse, thermal protector for fan motor

R410A R410A

EEV(in Outdoor unit) EEV(in Outdoor unit)

4C x 18 4C x 18

- 3 -

Only for training and service purposes

2. Piping Diagrams

Heat eHcHanger Gas pipe connection port

(Hlare connection)

HiHuid pipe connection port

(Hlare connection)

Cooling

Heating

TurHo Han

Th3

Th1

Th2

LOC. Description PCB Connector

Th1 Thermistor for sunction air temperature CN_ROOM

Th2 Thermistor for evaporator inlet temperature CN_PIPE/IN

Th3 Thermistor for evaporator outlet temperature CN_PIPE/OUT

- 4 -

Only for training and service purposes

3. Wiring Diagrams

CN-D/PUMP

CN-POWER

CN-VANE2

CN-VANE1

CN-DISPLAY

CN-MOTOR1

CN-REMO

CN-FLOAT

CN-ROOM

CN-OPTION

CN-PIPE/IN

CN-PIPE/OUT

CN-D/PUMP

CN-POWER CN-VANE2

CN-VANE1

CN-DISPLAY

CN-MOTOR1

CN-VANE1

CN-AIRC

CN-CC

CN-REMO

CN-FLOAT

CN-ROOM

CN-PTC

CN-OPTION

CN-PIPE/IN

CN-PIPE/OUT

- 5 -

Only for training and service purposes

4. Exploded View

130411

131410

354210

148000

346810

352150249310

267110

352116

263230B

Eva-in sensor

263230C

Eva-out sensor

349600

W49810

W48300B

330871B

330871A

349480

W3110

359012

W50011

140570

158580 130911B

158591

130911A

249951

268711E

268711C

263230A

Air-Inlet sensor

135511

266010

352115

W6640

• AMNW12GTRA0[MC12Y3JM]

- 6 -

Only for training and service purposes

130411

131410

148000

346810

352150249310

267110

352116

263230B

Eva-in sensor

263230C

Eva-out sensor

349600

W49810

330871B

330871A

349480

W3110

359012

140570

158580 130911B

158591

130911A

249951

268711E

268711C

263230A

Air-Inlet sensor

135511

266010

352115

W6640

W51620

(18 k Btu/h class only)

W50011

354210

W48300B

• AMNW18GTQA0[MC18Y3JM]

- 7 -

Only for training and service purposes

Front Panel (Accessory)

• PT-UQC [DCG1218]

135316

159830

749740B

749740A

135800

135303

146811

237202

145200 268711

135500

147581

266001

P/No : MFL61777631

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