Friedrich MR24UY3J 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: MR24UY3J
960-920-09

1. Specification
Indoor Unit
Indoor Unit
MC24Y3J
MD24Y3J
Capacity
Cooling
Min. ~ Rated ~ Max.
kW
2.84 ~ 7.03 ~ 7.81
2.84~7.03~7.81
Min. ~ Rated ~ Max.
Btu/h
9,700 ~ 24,000 ~ 26,700
9,700~24,000~26,700
Heating
Min. ~ Rated ~ Max.
kW
3.20 ~ 7.91 ~ 8.80
3.20~7.91~8.80
Min. ~ Rated ~ Max.
Btu/h
10,900 ~ 27,000 ~ 30,000
10,900~27,000~30,000
Power Input
Cooling
Rated
kW
1.91
2.00
Heating
Rated
kW
2.30
2.28
Running Current
Cooling
Rated
A
10.5
12.2
Heating
Rated
A
14.2
16.0
EER / COP
Btu/h·W
12.05 / -
12.0/-
SEER / HSPF
Btu/h·W
17.00 / 9.70
17.00 / 10.00
Outdoor Unit
Outdoor unit
MR24UY3J
Power Supply
V , Ø , Hz
1 / 208/230 / 60
Starting Current
Cooling
Max.
A
-
Heating
Max.
A
-
Wiring Connections
Power Supply Cable (included Earth)
No. x mm2 (AWG)
3C x 2.5
Casing Color
-
Warm Gray
Dimensions
W x H x D
mm
834 × 950 × 330
W x H x D
inch
32-27/32 x 37-13/32 x 13
Net Weight
kg (lbs)
60 (132.3)
Compressor
Type
-
Twin Rotary
Model
Model x No.
GJT240MAA x 1
Motor type
-
BLDC
Motor Output
W x No.
2,137 x 1
Refrigerant
Type
-
R410A
Precharged Amount
g (oz)
2,000
Chargeless-Pipe Length
m (ft)
7.5 (24.6)
Additional Charging Volume
g/m (oz/ft)
40 (0.43)
Control
-
Electronic Expansion Valve
Refrigerant Oil
Type
-
FVC68D
Charged volume
cc x No.
900 x 1
Heat Exchanger
(Row x Column x Fins per inch) x No.
-
(2 x 38 x 14) x 1
Fan
Type
-
Propeller
Air Flow Rate
m3/min(ft3/min) x No.
58(2048) x 1
Fan Motor
Type
BLDC
Output
W x No.
124 x 1
Sound Pressure Level
Cooling
Rated
dB(A)
48
Heating
Rated
dB(A)
52
Sound Power Level
Cooling
Rated
dB(A)
62
Piping Connections
Liquid
Outer Dia.
mm(inch)
Ø 9.52 (3/8)
Gas
Outer Dia.
mm(inch)
Ø 15.88 (5/8)
Piping Length
Max.
m (ft)
50 (164.0)
Maximum Height Difference
Outdoor Unit ~ Indoor Unit
Max.
m (ft)
30 (98.4)
Operation Range
(Outdoor Temperature)
Cooling
Min. ~ Max.
℃DB (℉DB)
-15 (5.0) ~ 48 (118.4)
Heating
Min. ~ Max.
℃WB (℉WB)
-18 (-0.4) ~ 18 (64.4)
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
Outdoor Unit
RefrigerantFlow
Cooling
Heating
Thermistorfor
condenserpipe
temperature
Thermistorfor
condenser
middle pipe
temperature
Thermistorfor
outdoorair
temperature
Ø9.52
Flare Connection M
Strainer Electronic
Expansion
Valve
Strainer
Pressure
sensor
Ø15.88
Flare Connection
4 way
Valve
Thermistor for
discharge pipe
temperature
Accumulator
Thermistorfor
suction pipe
temperature
Inverter
Compressor
Description
PCB Connector
Electronic Expansion Valve
CN-EEV1
Thermistor for suction pipe temperature
CN-TH3
Thermistor for discharge pipe temperature
CN-TH3
Thermistor for condenser pipe temperature
CN-TH2
Thermistor for outdoor air temperature
CN-TH2
Thermistor for condenser middle pipe temperature
CN-TH4
Pressure sensor
CN-TH1
- 3 -

3. Wiring Diagrams
MAIN PCB
CN_PFC_OUT
CN_PFC_IN
CN-TH4
CN-TH3
CN-4WAY CN-TH2
CN-MOTOR1 CN-FlasH
CN-CENTRAL
CN-CP(N)
CN-CP(L)
CN-LGMV
CN-TH5
CN-EEV1 CN-COM
- 4 -

4. Exploded View
549610
554030
552115
552113
435512
559010
546810
447910
137213A
435300
237202
137213B
437212
435301 349480
435513
237205
135500
649950
437211
550140B
430410
661400
552116
165010
265021
552117
268711
669010
W6200
Air / Cond-Out
263230A
152503
55211E
148000
552200
Pressure
Sen sor
552202
548490
W6631
Suction
/Discharge pipe
Cond-Mid
263230B
263230C
552203B
552203A
552560 561410
554160
W4986A
W6640
550140A
W4986B
Location No. Description Sensor Information Housing Color
263230A Thermistor 1 (CN-TH2) Air / Cond-Out White
263230B Thermistor 2 (CN-TH3) Suction /Discharge pipe Red
263230C Thermistor 3 (CN-TH4) Cond-Mid Orange
165010 Pressure sensor (CN-TH1) Pressure Sensor Red
- 5 -

Model: MR24UY3J
Loc No. Description Friedrich Part #
548490
Accumulator
67600100
447910
Barrier Assembly, Outdoor
67600305
430410
Base Assembly, Outdoor
67600601
549610
Bracket Assembly ,Motor(Outdoor)
67600711
649950
Case Assembly, Control(Outdoor)
67600926
661400
Coil, Expansion
67601104
554030
Condenser Assembly ,First
67601308
W6640
Connector, Terminal Block
67601400
135500
Cover
67601503
435512
Cover Assembly, Top(Outdoor)
67601612
435513
Cover Assembly, Tubing
67601616
550140B
Damper, Compressor
67601701
550140A
Damper, Compressor
67601703
561410
Drawing, Assembly
67601906
559010
Fan ,Propeller
67602117
W6200
Filter, Line Noise
67602212
669010
Fuse Assembly
67602303
W4986A
Gasket
67602407
W4986B
Gasket
67602408
435301
Grille ,Discharge
67602511
435300
Grille, Rear
67602519
W6631
Harness ,Multi
67602604
546810
Motor Assembly, DC,Indoor
67603308
546810
Motor Assembly, DC,Outdoor
67603314
552560
Muffler
67603400
152503
Nipple, Drain
67603500
349480
Orifice
67603602
437211
Panel Assembly, Front(Outdoor)
67603808
437212
Panel Assembly, Rear(Outdoor)
67603819
137213A
Panel Assembly, Side
67603830
137213B
Panel Assembly, Side
67603842
237202
Panel, Front
67603835
237205
Panel, Rear
67603840
268711
PCB Assembly
67603901
265021
Plug, Fusible
67602303
554160
QJ-T
67604200
165010
Sensor, Pressure
67607400
148000
Supporter
67604602
263230A
Thermistor Assembly, NTC
67604803
263230C
Thermistor Assembly, NTC
67604812
263230B
Thermistor Assembly ,NTC
67604815
55211E
Tube Assembly, Check Valve
67605200
552113
Tube Assembly ,Condenser(Out)
67605308
552115
Tube Assembly, Menifold(Outdoor)
67606010
552116
Tube Assembly, Reverse
67606103
552117
Tube Assembly, Suction(Outdoor)
67606203
552200
Valve, Expansion Body
67606302
552202
Valve, Reverse
67606403
552203A
Valve, Service
67606511
552203B
Valve, Service
67606514

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