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

MC24Y3J

MD24Y3J

Capacity

Cooling

Min. ~ Rated ~ Max.

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.

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

1.91

2.00

Heating

Rated

2.30

2.28

Running Current

Cooling

Rated

10.5

12.2

Heating

Rated

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 ,

, Hz

1 / 208/230 / 60

Starting Current

Cooling

Max.

Heating

Max.

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

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)

Heating

Rated

dB(A)

Sound Power Level

Cooling

Rated

dB(A)

Piping Connections

Liquid

Outer Dia.

mm(inch)

9.52 (3/8)

Gas

Outer Dia.

mm(inch)

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:

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.

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

Due to our policy of innovation some specifications may be changed without notification.

Sound Level Values are measured at Anechoic chamber.

Therefore, these values can be increased(maximum 3dB(A)) owing to ambient conditions during operation.

- 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 -

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 -

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

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