Panasonic CS-V28BKP5 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 19
10 Installation Instructions 39
©2001Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-V28BKP5/CU-V28BKP5
11 3-way Valve 50
12 Servicing Information 57
13 Troubleshooting Guide 61
14 Technical Data 63
15 Exploded View 65
16 Replacement Parts List 66
17 Exploded View 67
18 Replacement Parts List 68
19 Electronic Parts List 69
20 Electronic Circuit Diagram 70
Room Air Conditioner
CONTENTS
Page Page
OrderNo: TAC0204003C2
(Refrigerant:R407C)

CS-V28BKP5/CU-V28BKP5
•High Efficiency
• High EfficiencyAirflow Circuit
• CompactDesign
• Auto Restartafter Power Failure
• Long Piping up to 30m
•Catechin Deodorizing AirFilter
• Deodorizing Controlduring operation
1 Features
2

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
•
COOL Cooling Operation Mode
• DRY Soft Dry Operation Mode
•
FAN Air Circulation 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-V28BKP5/CU-V28BKP5

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 Lo fan speed.
•Operation stops after 8 hours.
Indoor Fan Speed Control
•High, Medium and Low.
•Automatic Fan Speed Mode
–Fan :Fan speed varies Low and stop in
accordance with the differential of the
indoor temperature & set temperature.
–Cooling : Fan rotates at Hi and Me
speed. Deodorizing control
is available.
–Soft Dry:Fan rotates at SLo speed.
•Automatic air swing and manual adjusted
by remote control for vertical airflow.
•Manually adjusted by hand for horizontal
airflow.
Airflow Direction Control
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
•SLEEP (Orange).... Lights up in Sleep
Mode Operation.
•TIMER (Orange).... Lights up in Timer
Setting.
Operation Mode
•Fan, 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-V28BKP5/CU-V28BKP5

Outdoor Unit
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
Overload Protector
•Inner protector (Compressor, Fan Motor).
CS-V28BKP5/CU-V28BKP5

3 Product Specifications
Unit CS-V28BKP5 CU-V28BKP5
Cooling Capacity kW
Btu/h 7.90 -7.80 27,000 -26,600
kW
Btu/h
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) —
Indoor Air (Me) m3/min (cfm) Cooling; 15.0 (530) —
Indoor Air (Hi) m3/min (cfm) Cooling; 16.3 (575) —
Outdoor Air m3/min (cfm) —Cooling; 59.0 (2,083)
Noise Level dB (A) Cooling; 48/46/44 Cooling; 63/55
Electrical Data Input kW Cooling; 2.98 -2.95
Running Current ACooling; 14.0 -14.5
COP W/W Cooling; 2.7 -2.6
Starting Current A82
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-V28BKP5/CU-V28BKP5

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) 146 (66)
Compressor Type —Scroll type
Motor Type —Induction (2-poles)
Rated Output kW —2.88
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 1818
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-407C)g (oz) —1,760 (62.1)
Thermostat Electronic Control Electronic Control
Protection Device Inner Protector Inner Protector
Capillary Tube Length mm —Cooling; 300
Flow Rate l/min —Cooling; 29.2 (0.03MPa)
Inner Diameter mm —Cooling; 2.3
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
µF, VAC
CS-V28BKP5/CU-V28BKP5

4 Dimensions
8
CS-V28BKP5/CU-V28BKP5
CS-V28BKP5/ CU-V28BKP5

5Refrigeration Cycle Diagram
9
CS-V28BKP5 / CU-V28BKP5
Dimensions
CS-V28BKP5 / CU-V28BKP5
CS-V28BKP5/CU-V28BKP5

6Block Diagram
CS-V28BKP5 / CU-V28BKP5
10
CS-V28BKP5/CU-V28BKP5

7 Wiring Diagram
11
CS-V28BKP5 / CU-V28BKP5
CS-V28BKP5/CU-V28BKP5

Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Saved Control
Anti-Freezing Control
• If the temperature of the indoor heat exchanger falls
continuously below 1°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).
3 minutes waiting of Time Delay Safety Control is
valid for Cooling Operation.
8 Operation Details
8.1. Cooling Mode Operation
• When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3 minutes when
the Power Switch, Remote Control is turned ON or the power supply is resumed.
• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is below the compressor
ON temperature.
12
CS-V28BKP5/CU-V28BKP5

Automatic Fan Speed Mode
Cooling Operation Time Diagram
When Automatic Fan Speed is selected at Remote Control during cooling operation.
• Fan speed rotates in the range of Hi to Me.
• Deodorizing Control.
13
CS-V28BKP5/CU-V28BKP5

Time Delay Safety Control
Anti-Freezing Control
Automatic Fan Speed Mode
8.2. Soft Dry Mode Operation
• The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and
then Soft Dry operation will start.
• During Soft Dryoperation, the Indoor Fan operateswith SLo speed.
• Once room temperature reaches below Soft Dry OFF temperature, Indoor Fan, Compressor and Outdoor Fan Stop for 6
minutes.
• Once the compressor stops, it will not start for 3 minutes during Cooling operation.
• Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor
stops.)
When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.
• Fanspeed rotates atSLospeed.
• Deodorizing Control.
14
CS-V28BKP5/CU-V28BKP5

Soft Dry Operation Time Diagram
15
CS-V28BKP5/CU-V28BKP5

8.3.Automatic Mode Operation
1.When the Automatic Mode Operation is selected, the indoor fan operates at SLo fan speed for 20 seconds to sense intake air
temperature and determine the 1st operation mode.
Standard for Determining Operation Mode Judgement
2.After judgingoperationmodewillnotshift.Howeverduringsoftdryoperationmode.coolingoperationisavailable.
Note:Below setting is available by cutting jumper wire (J-TMP)
16
*.AstheJ-TMPbecutted.
CS-V28BKP5/CU-V28BKP5

Cooling or Soft Dry Operation
When you press the SLEEP Mode, the following movement will
start to avoid overcooling.
• The fan speed refer to Indoor Fan Motor Control.
• Thesetting temperature willbe risen by
0.5°Cat the start of
operation and by 0.5°C one hour later.
• The operation will stop after 8hours.
• When using together with the Timer, the ON-Timer has
priority.
Fan Operation
• The fan speed refer to Indoor Fan Motor Control.
• The operation will stop after 8hours.
• When using together with the Timer, the ON-Timer has
priority.
8.4.Sleep Mode Auto Operation
8.5.Auto Restart Control
• If there is a power failure, operation will be automatically restarted when the power is resumed.
It will start with previous operation mode and airflow direction.
(Time Delay Safety Control is valid)
• Auto Restart Control is not available when Timer or Sleep Mode is set.
• This control can be omitted bycutting the jumper wire J2. (Refer Circuit Diagram)
8.6.Indoor Fan Speed Control
• Auto Fan Speed Control
When settoAuto Fan Speed, the fan speed is adjustedbetweenmaximumand minimumsetting as shown in the table.
• Manual Fan Speed Control
Basic fan speed adjustment (3 settings, from Lo to Hi) can be carried out by using the Fan Speed selection button.
Fan Speed High Speed ←→ Low Speed
Manual OOO
Cooling Auto O O O O
Sleep O
Soft Dry Manual, Auto O
Sleep O
Manual O
Fan Auto O O
Hi Me Lo SLo STOP
17
OO
CS-V28BKP5/CU-V28BKP5

Airflow Direction Auto-Control
• When set a Airflow Direction Auto-Control with remote
control, the louver swings up and down as shown in the
diagram.
• The louver does not swing when the Indoor Fan stops
during operation.
• When stopped with remote control, the discharge vent is
closed with the louver.
The left and right airflow direction louvers can be adjusted
manually.
1There is no swinging while indoor fan is stopped during
Cooling and Soft Dry operation.
Airflow Direction Manual Control
• When the airflow direction set button is pressed, the
automatic airflow is released and the airflow direction louver
move up and down in the range shown in the diagram.
The louver can be stopped by releasing the button at the
desired louver position.
• When the remote control is used to stop the operation, the
discharge vent is closed with airflow direction louver.
The left and right airflow direction louvers can be adjusted
manually.
8.7.Airflow Direction Control
8.8.Delay ON Timer Control
• When the Delayed ON Timer is set by using the remote control, the unit will start operate slightly before the set time, so that
the room will reach nearly to the set temperature by the desired time.
• For Cooling and Soft Dry mode, the operation will start 15 minutes before the set time.
• For Automatic mode, the indoor fan willoperate atSLo speed for 20 seconds, 15 minutesbefore the set time todetect the
intake air temperature to determine the operation mode. The operation indication lamp will blink at this time.
18
CS-V28BKP5/CU-V28BKP5

9 Operating Instructions
■Do not install, remove and reinstall the unit yourself.
Improper installation will cause leakage, electric shock or fire. Please consult an authorized dealer or
specialist for the installation work.
To prevent personal injury, injury to others and property damage, the following instructions must be followed.
■Incorrect operation due to ignoring of instructions will cause harm or damage, the seriousness of which is
classified as follows :
■The instructions to be followed are classified by the following symbols :
!
Installation precautions
Before operating, please read the following “Safety Precautions” carefully.
■This room air conditioner must be
earthed.
Improper grounding could cause
electric shock.
■Do not install the unit in a place where
there may be explosive gas leaks.
Gas leaks near the unit could
cause fires.
■Ensure that drainage piping is connected
properly.
Otherwise, water will leak out.
!
This symbol (with a white background) denotes an action that is
PROHIBITED.
These symbols (with a black background) denote an action that is
COMPULSORY.
OFF
Safety Precautions
Warning : This sign warns of death or serious injury.
Caution :
This sign warns of injury or damage to property only.
Warning
!
Caution
!
19
CS-V28BKP5/CU-V28BKP5

Operation precautions
■Insert the power plug
properly.
Heat generated by a loose
power plug could cause electric
shock or fire.
Electrical outlet and power plug
shall be easily accessible.
■Do not modify the length of
the power cord or use an
extension cord.
It could cause electric shock or
fire.
■Do not be directly exposed
to the cold airstream for
too long.
It could lead to health problems.
■Do not operate or stop the
unit by inserting or pulling
out the power plug.
It could cause electric shock or
fire.
■Do not operate the unit with
wet hands.
It could cause an electric shock.
■ If there is a smell of burning,
stop the air conditioner and
disconnect the power supply.
The heat generated could cause
electric shock or fire. Please con-
sult an authorized dealer or serv-
ice centre.
■Do not damage or use an
unspecified power cord.
It will cause electrical shock or
fire.
■Do not insert finger, sticks
or other objects into the
units.
It could lead to physical injury
and cause damage to the units.
■Do not try to repair the unit
yourself.
It could lead to fire or cause an
electric shock. Please call an
authorized dealer or service
centre.
OFF
Switch off
the breaker. Disconnect
the power
plug.
Warning
!
20
CS-V28BKP5/CU-V28BKP5