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

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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

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Only for training and service purposes
3. Wiring Diagrams
CN-D/PUMP
CN-D/PUMP
CN-POWER
CN-POWER
CN-VANE2
CN-VANE2
CN-VANE1
CN-VANE1
CN-DISPLAY
CN-DISPLAY
CN-MOTOR1
CN-MOTOR1
CN-REMO
CN-REMO
CN-FLOAT
CN-FLOAT
CN-ROOM
CN-ROOM
CN-OPTION
CN-OPTION
CN-PIPE/IN
CN-PIPE/IN
CN-PIPE/OUT
CN-PIPE/OUT
CN-D/PUMP
CN-POWER CN-VANE2
CN-VANE1
CN-DISPLAY
CN-MOTOR1
CN-VANE1
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