Friedrich MD24Y3J User manual

Single Zone Air Conditioner
SVC MANUAL (Exploded View)
CAUTION
Before Servicing the unit, read the safety
precautions in General SVC manual.
Only for authorized service personnel.
MODEL: MD24Y3J
960-920-12

1. Specification
Indoor
Model Name
MD24Y3J
Power Supply
V, Ø , Hz
208/230, 1, 60
Power Input
W x No.
-
Running Current
A
1.0
Casing Color
-
-
Dimensions Body
W x H x D
mm
1,182 × 298 × 450
W x H x D
inch
46-17/32 x 11-23/32 x 17-23/32
Net Weight
Body
kg (lbs)
33.0 (72.8)
Heat Exchanger
(Row x Column x Fins per inch) x No.
-
(3 x 12 x 21) x 1
Face Area
m
2
(ft
2
)
0.26 (2.77)
Fan
Type
-
Sirocco Fan
Air Flow
Rate
High-static Mode
(Factory Set)
H / M / L
m
3
/min
19.5 / 17.5 / 15.0
H / M / L
ft
3
/min
688 / 168 / 530
External Static
Pressure
Pa (mmAq) 100.0(10.2)
Fan Motor
Type
-
BLDC
Output
W x No.
154 x 1
Dehumidification Rate
l / h (pts/h)
3.3 (7.0)
Sound Pressure Level
H / M / L
dB(A)
38 / 36 / 35
Sound Power Level
Cooling
dB(A)
56
Piping
Connections
Liquid
mm(inch)
Ø 9.52 (3/8)
Gas
mm(inch)
Ø 15.88 (5/8)
Drain (O.D. / I.D.)
mm
Ø 32.0(1-1/4) / 25.0(31/32)
Safety Devices
-
Fuse
-
-
Power and Communication Cable (included Earth)
No. x mm
2
(AWG)
4C x 0.75 (18)
Note:
1. All data are based on the following conditions:
-Cooling Temperature : Indoor 26.7℃(80℉) DB / 19.4℃(67℉) WB
Outdoor 35℃(95℉) DB / 23.9℃(75℉) WB
-Heating Temperature : Indoor 21.1℃(70℉) DB / 15.6℃(60℉) WB
Outdoor 8.33℃(47℉) DB / 6.11℃(43℉) WB
-Piping Length : Interconnected Pipe Length = 7.5m
-Difference Limit of Elevation (Outdoor ~ Indoor Unit) is Zero.
2. Wiring cable size must comply with the applicable local and national code.
3. Due to our policy of innovation some specifications may be changed without notification.
4. Sound Level Values are measured at Anechoic chamber.
Therefore, these values can be increased(maximum 3dB(A)) owing to ambient conditions during operation.
- 2 -

2. Piping Diagrams
Heating
Heat exchanger
Gas pipe connection port
(flare connection)
Cooling
Sirocco Fan
M
Thermistor for
evaporator outlet
temperature
Thermistor
for suction air
temperature
Thermistor for
evaporator inlet
temperature
Liquid pipe connection port
(flare connection)
Description
PCB Connector
Thermistor for suction air temperature
CN-ROOM
Thermistor for evaporator inlet temperature
CN-PIPE / IN
Thermistor for evaporator outlet temperature
CN-PIPE / OUT
n Refrigerantpipeconnectionportdiameters
[Unit: mm(inch)]
Model Gas Liquid
ABNH24GGLA2 [MD24Y3J] Ø15.88(5/8) tØ9.52(3/8)
- 3 -

3. Wiring Diagrams
CN-MOTOR1
CN-ZONE
CN-FLOAT
CN-EXT
CN-DISPLAY
CN-CC
CN-POWER
CN-D/PUMP
CN-VM
CN-ROOM
CN-PIPE/IN
CN-REMO
CN-PIPE/OUT
- 4 -

4. Exploded View
349480
336600B
346810
348601
359012A
137213B
336600A
359012B
137214
349480
349600
147901
137213A
Eva-In
263230B
Eva-Out
263230C
W3001
W50011
354210
268711E 263230A
Air-Inlet W6640
268711A 135500
267110
437213B
437213A
352114
352118
249951
152302
330871
TEM P
FAN
SPEED
OP ER
M OD
E
Location No.
Description
Sensor Information
Housing Color
263230A
Thermistor1(CN_ROOM)
Air-Inlet
Orange
263230B
Thermistor2(CN_PIPE/IN)
Eva-in
White
263230C
Thermistor3(CN_PIPE/OUT)
Eva-out
Red
- 5 -

Model: MD24Y3J
Loc No. Description Friedrich Part #
W50011 Accessory Assembly, Indoor 67600001
W3001 Angle Assembly 67600200
147901 Barrier, Indoor 67600400
349600 Bracket, Motor 67600714
249951 Case Assembly, Control(Indoor) 67600908
348601 Clamp, Motor 67607000
W6640 Connector, Terminal Block 67601408
135500 Cover 67601500
354210 Evaporator Assembly, First 67602008
359012A Fan Assembly, Blower 67602106
359012B Fan Assembly, Blower 67602101
152302 Filter, Air 67602204
336600A Housing Assembly 67602900
336600B Housing Assembly 67602905
346810 Motor Assembly, DC 67603304
349480 Orifice 67603600
349480 Orifice 67603600
330871 Pan Assembly, Drain 67603700
437213A Panel Assembly, Rear(Indoor) 67603813
437213B Panel Assembly, Rear(Indoor) 67603814
137213A Panel Assembly, Side 67603822
137213B Panel Assembly, Side 67603823
137214 Panel Assembly, Upper 67603833
268711A PCB Assembly, Main 67603910
268711E PCB Assembly, Option 67603919
267110 Remote Controller Assembly 67604306
263230A Thermistor Assembly, NTC 67604810
263230B Thermistor Assembly, NTC 67604820
263230C Thermistor Assembly, NTC 67604822
352114 Tube Assembly, Distributor 67605700
352118 Tube Assembly, Manifold (Indoor) 67606003

FriedrichAirConditioningCo. I10001ReunionPlace,Suite500 ISanAntonio,TX78216 I877.599.5665
www.friedrich.com