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
©2002Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
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
2
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
l
•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
3
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.
➝
4
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.
5
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
V
Cycle
Single
230 -220
50
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 —
6
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.
7
CS-A28BKP5/CU-A28BKP5

4Dimensions
8
CS-A28BKP5/CU-A28BKP5
CS-A28BKP5/ CU-A28BKP5

CS-A28BKP5/CU-A28BKP5
5Refrigeration Cycle Diagram
9
CS-A28BKP5/CU-A28BKP5
CS-A28BKP5/CU-A28BKP5
Dimensions
CS-A28BKP5/CU-A28BKP5
CS-A28BKP5/CU-A28BKP5

6Block Diagram
10
CS-A28BKP5/CU-A28BKP5
CS-A28BKP5/CU-A28BKP5