Panasonic CS-A28BKP5 User manual

1 Features 2

2 Functions 3

3 Product Specifications 6

4 Dimensions 8

5 Refrigeration Cycle Diagram 9

6 Block Diagram 10

7 Wiring Diagram 11

8 Operation Details 12

9 Operating Instructions 22

10 Installation Instructions 42

and distribution is a violation of law.

CS-A28BKP5/CU-A28BKP5

11 3-way Valve 51

12 Servicing Information 58

13 Troubleshooting Guide 62

14 Technical Data 64

15 Exploded View 67

16 Replacement Parts List 68

17 Exploded View 69

18 Replacement Parts List 70

19 Electronic Parts List 71

20 Electronic Circuit Diagram 72

Room Air Conditioner

CONTENTS

Page Page

OrderNo:TAC0204001C2

•High Efficiency

• High EfficiencyAirflow Circuit

• CompactDesign

• Auto Restartafter Power Failure

• Long Piping up to 30m

•Catechin Deodorizing AirFilter

• Deodorizing Controlduring operation

• Cold draughtControl

1 Features

CS-A28BKP5/CU-A28BKP5

2 Functions

Remote Control

Operation OFF / ON

OFF / ON IRoom Temperature Setting

TEMP.

• Temperature Setting (16˚C to 30˚C)

• Automatic Operation

m / n 2˚C lower than standard

n Standard

n - o 2˚C higher than standard

Operation Mode Selection

•AUTO Automatic Operation Mode

•HEAT Heating Operation Mode

•COOL Cooling Operation Mode

•DRY Soft Dry Operation Mode

MODE

TIME Time / Timer Setting

• Hours and minutes setting.

Clock Setting

• Current time setting.

Sleep Mode Operation OFF / ON

SLEEP

Indoor Fan Speed Selection

FAN SPEED

•h j k Low Speed

•h j k Medium Speed

lll

•h j k High Speed

lllll

•AUTOFAN Automatic Fan Speed

Airflow Direction Control

• 24-hour, OFF / ON Real Timer Setting.

ON-TIMER

OFF-TIMER Timer Operation Selection

SET

CANCEL Timer Operation Set / Cancel

• ON Timer and OFF Timer setting and

cancellation.

CLOCK

(q)

AIR SWING

•SWING Automatic Airflow Direction

Control

•MANUAL Airflow Direction Manual

Control

CS-A28BKP5/CU-A28BKP5

Indoor Unit

Auto Restart Control

•Operation is restarted after power failure

at previous setting mode.

Anti-Freezing Control

•Anti-Freezing control for indoor heat

exchanger. (Cooling and Soft Dry)

Sleep Mode Auto Control

•Indoor Fan operates at Low fan

speed.

•Operation stops after 8 hours.

Indoor Fan Speed Control

•High, Medium and Low.

•Automatic Fan Speed Mode

–Heating : Fan speed varies from Hi

SLo in accordance with

indoor heat exchanger.

–Cooling : Fan rotates at Hi and Me

speed. Deodorizing control

is available.

–Soft Dry: Fan rotates at Lo speed.

Hot-Start Control

•Automatic air swing and manual adjusted

by remote control for vertical airflow.

•Manually adjusted by hand for horizontal

airflow.

Airflow Direction Control

•The indoor fan stops until the indoor heat

exchanger temperature over 30°C.

•The indoor fan operates at SLo and Lo

when indoor heat exchanger temperature

reaches 30°C ~ 42°C.

•Hot start is completed when indoor heat

exchanger reaches 42°C.

Auto Operation Switch

•Used when the remote control cannot be

used.

AUTO

OFF / ON

Remote Control Signal Receiving

Sound Control

•It can be controlled by pressing Auto

Operation Switch for 10 seconds.

Operation Test Running / Pump

Down Switch

TEST RUN

OFF / ON

•Used when test running or servicing.

Operation Indication Lamps (LED)

•POWER (Red)........ Lights up in operation,

blinks in Automatic

Operation Mode judging

and Hot Start operation.

•SLEEP (Orange).... Lights up in Sleep

Mode Operation.

•TIMER (Orange).... Lights up in Timer

Setting.

Operation Mode

•Heating, Cooling, Soft Dry, and Automatic

Mode.

Time Delay Safety Control

•Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control

•Cooling Operation only.

➝

CS-A28BKP5/CU-A28BKP5

Outdoor Unit

4-Way Valve Control

•When the unit is switched to “OFF”

during Heating operation, 4-way valve

stays at Heating Position for 5 minutes.

60 Secs. Forced Operation Control

•Once the compressor is activated, it

does not stop for 60 secs. (Stops imme-

diately with remote control stop signal.)

Outdoor Fan Operation Control

•

4-pole induction motor (2-speed)

•For Cooling or Soft Dry Operation

Hi-speed …when outdoor temperature

reaches to 31°C

Lo-speed …when outdoor temperature

reaches to 29°C

•For Heating Operation

Hi-speed ... when outdoor temperature

reaches to 13.5°C.

Lo-speed ... when outdoor temperature

reaches to 15.5°C.

•For Over-heating Protection, the Fan is

switched ON or OFF depending on the

piping temperature and the outdoor

temperature.

Overload Protector

•Inner protector (Compressor, Fan Motor).

Deice Control

•

To prevent frosting at outdoor heat

exchanger during Heating Operation.

CS-A28BKP5/CU-A28BKP5

3 Product Specifications

Unit CS-A28BKP5 CU-A28BKP5

Cooling Capacity kW

Btu/h 7.92 -7.80

27,000 - 26,600

Heating Capacity kW

Btu/h 8.35 -8.25

28,500 -28,200

Moisture Removal l/h

Pint/h 4.6

9.7

Power Source Phase

Cycle

Single

230 -220

Airflow Method OUTLET

INTAKE

SIDE VIEW TOP VIEW

Air Volume Indoor Air (Lo) m3/min (cfm) Cooling; 14.2 (501) —

Heating; 15.6 (551)

Indoor Air (Me) m3/min (cfm) Cooling; 15.0 (530) —

Heating; 16.4 (579)

Indoor Air (Hi) m3/min (cfm) Cooling; 16.3 (575) —

Heating; 17.7 (625)

Outdoor Air m3/min (cfm) —Cooling; 59.0 (2,083)

Heating; 59.2 (2,090)

Noise Level dB (A) Cooling; 48/46/44 Cooling; 63/55

Heating; 48/44 Heating; 63/55

Electrical Data Input kW Cooling; 2.62 -2.60

Heating; 2.88 -2.85

Running Current ACooling; 12.2 -12.5

Heating; 13.2 -13..5

COP W/W Cooling; 3.0 -3.0

Heating; 2.9 -2.9

Starting Current A76

Piping Connection Port

(Flare piping) inch

inch G ; Half Union 5/8”

L ; Half Union 1/4”G ; 3-way valve 5/8”

L ; 3-way valve 1/4”

Pipe Size

(Flare piping) inch

inch G (gas side); 5/8”

L (liquid side); 1/4”G (gas side); 5/8”

L (liquid side); 1/4”

Drain

Hose Inner diameter mm 14 —

Length m0.73 —

CS-A28BKP5/CU-A28BKP5

Power Cord Length

Number of 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) 150 (68)

Compressor Type —Scroll type

Motor Type —Induction (2-poles)

Rated Output kW —2.11

Air Circulation Type Cross-flow Fan Propeller Fan

Material AS + Glass Fiber 30% AS +Glass Fiber 20%

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

Input W— —

Rated Output W40 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

Fin material Aluminium Aluminium

Fin Type Louver Louver

Row / Stage (Plate fin configuration, forced draft)

2×10 2×26

FPI 18 18

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

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 Inner Protector Inner Protector

Capillary Tube Length mm —Cooling; 850, Heating; 1,200

Flow Rate l/min —Cooling; 21.8, Heating; 23 (1/2 ATM)

Inner Diameter mm —Cooling; 2.0, Heating; 2.4

Air Filter Material

Style A.B.S

Honeycomb —

Compressor Capacitor µF, VAC —50 µF, 370VAC

Fan Motor Capacitor µF, VAC 2.0 µF, 450VAC 3.0 µF, 450VAC

• Specifications are subject to change without notice for further improvement.

CS-A28BKP5/CU-A28BKP5

4Dimensions

CS-A28BKP5/CU-A28BKP5

CS-A28BKP5/ CU-A28BKP5

CS-A28BKP5/CU-A28BKP5

5Refrigeration Cycle Diagram

CS-A28BKP5/CU-A28BKP5

Dimensions

CS-A28BKP5/CU-A28BKP5

6Block Diagram

CS-A28BKP5/CU-A28BKP5

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