Panasonic CS-A281KR User manual

Order No: MAC011105AC3

Room AirConditioner

CS-A281KR.CU-A281KR

2001 Matsushita Air-Conditioning Corp. Sdn. Bhd. (183914D)All

rights reserved. Unauthorized copying and distribution isa

violation of law.

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1. Features

-High Efficiency

-High EfficiencyAirflow Circuit

-Compact Design

-Soft Starter Current

-Auto Restart after Power Failure

-Long Piping up to 30m

-CatechinDeodorizing AirFilter

-Deodorizing Control during operation

-Colddraught Control

2. Functions

3. Product Specifications

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Unit CS-A281KR CU-

A281KR

Cooling Capacity kW

Btu/h 8.00 - 7.92

27,300 - 27,000

Heating Capacity kW

Btu/h 8.40 - 8.35

28,700 - 28,500

Moisture Removal l/h

Pint/h 3.7

7.8

PowerSource Phase

Cycle

Single

240 - 230

AirflowMethod OUTLET

INTAKE

SIDE VIEW TOP

VIEW

AirVolume IndoorAir(Lo) m3/min

(cfm) Cooling; 14.2 (501) —

Heating; 15.6 (551)

IndoorAir(Me) m3/min

(cfm) Cooling; 15.0 (530) —

Heating; 16.4 (579)

IndoorAir(Hi) m3/min

(cfm) Cooling; 16.3 (575) —

Heating; 17.7 (625)

OutdoorAir m3/min

(cfm) —Cooling; 59.0 (

2,083)

Heating; 59.2 (

2,090)

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Noise Level dB (A) Cooling; 48/46/44 Cooling; 63

Heating; 48/44 Heating; 63

Electrical DataInput kW Cooling; 2.65 -2.62

Heating; 2.90 - 2.88

Running Current A Cooling; 12.0 - 12.2

Heating; 13.2 - 13.2

COP W/W Cooling; 3.02 - 3.02

Heating; 2.90 - 2.90

Starting Current A 43

Piping Connection Port

(Flare piping) inch

inch G ; Half Union 5/8”

L; Half Union 1/4” G ; 3-way

valve

L; 3-way

valve

Pipe Size

(Flare piping) inch

inch G (gas side); 5/8”

L(liquidside); 1/4” G (gas side);

L(liquidside)

;

Drain

Hose Innerdiameter mm 14 —

Length m 0.73 —

PowerCordLength

Numberof core-wire m2.1

3 (2.5 mm2)—

—

Dimensions Height inch(mm) 14 - 9/16 (370) 26 - 31/32 (

685)

Width inch(mm) 48 - 1/32 (1,220) 34 - 21/32 (

880)

Depth inch(mm) 8 - 21/32 (220) 13 - 19/32 (

345)

Net Weight lb(kg) 40 (18) 154 (70)

Compressor Type — Scroll

type

Motor Type — Induction (2-

poles)

Rated Output kW — —

AirCirculation Type Cross-flowFan Propeller

Fan

Material AS + Glass Fiber30% AS + Glass

Fiber

Motor Type Induction (4-poles) Induction (4-

poles)

Input W — —

Rated Output W 40 100

Fan

Speed Low rpm Cooling; 1,262 Heating; 1,250 920 - 880

Medium rpm Cooling; 1,322 Heating; 1,328 —

High rpm Cooling; 1,418 Heating; 1,420 1,200 -

1,170

Heat

Exchanger Description Evaporator

Condenser

Tube material Copper Copper

Finmaterial Aluminium

Aluminium

FinType Louver Louver

Row/ Stage (Plate finconfiguration, forceddraft)

2 × 10 2 × 26

FPI 18 18

Size (W × H × L) mm 966.5 × 254 × 44 826 × 663.9

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Refrigerant Control Device — Capillary

Tube

Refrigeration Oil (cm3)— SONTEX

200 LT (

1,242)

Refrigerant (R-22) g(oz) — 1,800 (

63.5)

Thermostat Electronic Control Electronic

Control

Protection Device InnerProtector Inner

Protector

CapillaryTube Length mm — Cooling; 850,

Heating

FlowRate l/min — Cooling; 21.8,

Heating

2 ATM)

InnerDiameter mm — Cooling; 2.0,

Heating

AirFilter Material

Style A.B.S

Honeycomb —

CompressorCapacitor F, VAC —50 F,

370VAC

FanMotorCapacitor F, VAC 2.0 F, 450VAC 3.0 F,

450VAC

-Specifications are subject to change without notice for further

improvement.

4. Dimensions

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5. Refrigeration Cycle Diagram

6. Block Diagram

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7. Wiring Diagram

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8. Operation Details

8.1. Cooling Mode Operation

Cooling inoperation according toRemote Control setting.

Time DelaySafetyControl (3 minutes)

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-When the compressor isstopped byPower Switch, Remote

Control or there isapower failure, itrestarts after 3minutes when

the Power Switch, Remote Control isturned ONor the power

supplyisresumed.

-When the setting temperature isreached during cooling operation,

the compressor stops and itwill not start for 3minutes.

7 minutes Time SavedControl

-The compressor will start automaticallyifithas stopped for 7

minutes even ifthe room temperature isbelow the compressor ON

temperature.

Anti-Freezing Control

-Ifthe temperature of the indoor heat exchanger fallscontinuously

below 2°Cfor 4minutes, the compressor turns off to protect the

indoor heat exchanger from freezing. The fan speed setting

remains the same. /

-Compressor recommences when the indoor heat exchanger

temperature rises to 10°C(Recovery).

3minutes waiting of Time DelaySafetyControl is valid

for Cooling Operation.

Automatic FanSpeedMode

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