Panasonic CW-XC100VK User manual

1 Functions 2
2 Product Specifications 4
3 Dimensions 5
4 Refrigeration Cycle Diagram 6
5 Block Diagram 6
6 Wiring Diagram 7
7 Air Conditioner Performance Evaluation 7
8 Troubleshooting Guide 8
9 Operation Details 10
10 Operating Instructions 13
© 2002 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
CW-XC100VK
CW-XC120VK
11 Installation Instructions 18
12 Care and Maintenance 22
13 Servicing Information 23
14 Technical Data 25
15 Electronic Circuit / Main 26
16 Electronic Circuit / Indicator Complete 27
17 Electronic Circuit Diagram 28
18 Exploded View 31
19 Replacement Part List 32
Room Air Conditioner
CONTENTS
Page Page
Order No. MAC0208039C1

1 Functions
1.1. Remote Control
2
CW-XC100VK / CW-XC120VK

1.2. Main Unit
3
CW-XC100VK / CW-XC120VK

2 Product Specifications
Unit CW-XC100VK CW-XC120VK
Phase ØSingle Single
Voltage V115 115
Frequency hZ 60 60
Cooling Capacity kW
Btu/h
2.93
10,000
3.37
11,500
Running Current A8.7 9.8
Input Power W0.98k 1.12k
EER (w/w)
Btu/h
- -
10.2 10.2
Starting Current A35 48
Compressor Output W0.70K 0.75k
Fan Motor Output W54 54
Noise Level Indoor
(High / Low)
db(A) 50 / 46 51 / 47
Outdoor
(High / Low)
db(A) 57 / 54 58 / 55
Moisture Removal L/h
Pt/h
1.2
2.5
1.4
3.0
Air Circulation Indoor m3/min (ft3/min) 9.1 (320) 9.3 (330)
Outdoor m3/min (ft3/min) 14.7 (520) 14.7 (520)
Dimensions Height mm
inches
375
(14-25/32)
375
(14-25/32)
Width mm
inches
560
(22-1/16)
560
(22-1/16)
Depth mm
inches
606
(23-7/8)
606
(23-7/8)
Net Weight kg
lb
35
77
35
77
Gross Weight kg
lb
39
86
39
86
Refrigerant (R-22) g
oz
450
15.9
550
19.4
• Specifications are subject to change without notice for further improvement.
4
CW-XC100VK / CW-XC120VK

3 Dimensions
3.1. Top View, Front View and Side View
3.2. Unit
Item Unit: Inch (mm)
A - Width 22-1/16”(560)
B - Height 14-25/32”(375)
C - Depth 23-7/8”(606)
D11-9/16”(294)
E1-13/16”(46)
F11-3/32”(281.6)
G11-3/32”(281.6)
5
CW-XC100VK / CW-XC120VK

4.1. CW-XC100VK
Item Pressure (MPa) Temperature (°C)
Lower Upper Lower Upper
A1.85 2.05 61 76
B1.82 2.02 36 46
C0.59 0.65 914
D0.57 0.63 10 17
Note: Indoor temperature at 27°C (DB), 19°C (WB) and Outdoor at
35°C (DB), 24°C (WB) for Cooling.
4.2. CW-XC120VK
Item Pressure (MPa) Temperature (°C)
Lower Upper Lower Upper
A1.90 2.10 64 80
B1.87 2.07 36 46
C0.57 0.63 713
D0.53 0.59 915
Note: Indoor temperature at 27°C (DB), 19°C (WB) and Outdoor at
35°C (DB), 24°C (WB) for Cooling.
4 Refrigeration Cycle Diagram
5 Block Diagram
6
CW-XC100VK / CW-XC120VK

6 Wiring Diagram
6.1. Resistance of Fan Motor
windings and the rated
Capacitor
Model CW-XC100VK CW-XC120VK
Connection CWA951216 CWA951215
Blue - Yellow 34.6 Ω34.8 Ω
Yellow - Brown 2.3 Ω2.5 Ω
Brown - Orange 13.7 Ω14.8 Ω
Red -Yellow 36.6 Ω37.6 Ω
6.2. Resistance of Compressor
windings and the rated
Capacitor
Model CW-XC100VK CW-XC120VK
Connection CWB09623 CWB09624
C-R 0.690 Ω0.724 Ω
C-S 2.429 Ω2.168 Ω
Capacitor CWA312066 (40µF,
250VAC)
CWA312067 (45µ,
250VAC)
Note: Resistance at 20°C of Ambient Temperature.
7 Air Conditioner Performance Evaluation
Suction & Discharge Air
Temperature Difference
Current Determination Remedy
• 8°C and over (14.4°F) • As specified. • Nothing wrong. • None.
• 8°C and over (14.4°F) • Higher than specified. • Nothing wrong, outdoor
temperature is too high, heat
radiation is not efficient.
• Improve heat radiation.
• Under 8°C (14.4°F) • Higher than specified. • Something is preventing heat
radiation.
• Excessive amount of refrigerant.
• Improve heat radiation.
• Under 8°C (14.4°F) • Lower than specified. • Leakage of refrigerant or
refrigerant system is blocked.
• Locate and repair leak.
• Flush refrigeration cycle.
• Under 8°C (14.4°F) • Higher than specified by
50%.
• Compressor defect. • Replace the compressor.
Note: Room air humidity is relatively higher, the temperature difference will be smaller.
7
CW-XC100VK / CW-XC120VK

8 Troubleshooting Guide
Warning: Disconnect unit from electrical power supply before making any electrical checks.
Trouble Check Result Causes Remedy
Fan Motor and Compressor
won’t run.
• Supply Voltage
• Fuse Box or Circuit
Breaker.
• Power cord or Wiring
Harness.
• Temperature Setting.
• Less than 10% by
Rated.
• Open Contacts.
• Pulled loose or Shorted.
• Higher than room
temperature
• Temporary or
Permanent?
• Customer Restarted
unit immediately without
waiting 3 minutes.
• Consult ELECTRICIAN,
if permanent.
• WAIT FOR 3
MINUTES.
• Repair Open Circuit.
• Repair or Replace it.
• Set it LOWER.
Fan motor won’trun
(Compressor run).
• Objects around Fan.
• RESISTANCE between
Wires.
• Capacitor Fan Motor.
• Locked Fan.
• Shorted / Open circuit.
• OHM Meter doesn’t
Deflect.
• Fan Hitting Cowling.
• Foreign Materials.
• Frozen Bearings.
• Shorted or Burned out.
• Capacitor Defect.
• Adjust Fan position
setting screw.
• Remove Foreign
Materials.
• Replace Fan Motor.
• Replace Fan Motor.
• Replace Capacitor Fan.
Compressor won’t run (Fan
run).
• Temperature setting.
• RESISTANCE between
Terminal and the
Compressor Body.
• RESISTANCE between
Terminals.
• Overload Protector.
• Capacitor Compressor.
• Thermostat.
• Higher than room temp.
• Shorted.
• Shorted.
• Infinity between
Terminals.
• OHM Meter doesn’t
deflect.
• No click heard.
• Winding Coil touched to
the compressor shell.
• Rear Shorted or Burnt
out.
• Rear Shorted or Burnt
out.
• Overload Protector
defect.
• Capacitor defect.
• Thermostat defect.
• Set it lower.
• Replace Compressor.
• Replace Compressor.
• Replace Overload
Protector.
• Replace Capacitor
Compressor.
• Replace Thermostat.
Air Swing won’trun • Air Swing Switch. • OFF position. • Set it ON.
• No contact at position. • Open circuit • Replace Air Swing
Switch.
• Resistance between
wires.
• OHM Meter doesn’t
deflect.
• Shorted or open circuit. • Replace Air Swing
Motor.
8
CW-XC100VK / CW-XC120VK

Trouble Check Result Causes Remedy
Insufficient cooling. • Temperature Setting.
• Ventilation door open.
• Air filter dirty.
• Location of installation.
• Evaporator/Condenser
Coil obstructed.
• Unit capacity for the
room too small.
• Temperature difference
and running current.
• Higher than room
temperature.
• Open.
• Clogged or dirty.
• Sunlight hitting outdoor
side.
• Obstacles.
• Clogged or dirty.
• Not satisfied.
• REFER TO
PERFORMANCE
EVALUATION.
• Reduces capacity.
• Restricted air
circulation.
• Restricted Heat
Exchanger.
• Restricted Heat
Exchanger.
• Restricted air
circulation.
• Leakage of refrigerant
or refrigeration system
is blocked.
• Set it lower.
• Close ventilation door.
• Clean or replace Air
Filter.
• Consider building an
AWNING.
• Remove obstacles or
reinstall unit.
• Clean the coils.
• Replace the unit with
bigger one.
• Locate repair leak.
• Flush refrigeration
cycle.
Noise • Source of Noise • Vibration.
• Intermittent Noise.
• Faulty installation.
• Fan hitting objects.
• Refrigerant tubing
touching each other.
• Fan splashing Drain
Water.
• Reinstall unit or
Reinforce the
installation.
• Adjust Fan position or
remove foreign
materials.
• About 1/2”Clearance
needed.
• Remove drain plug and
mount a drain pan to
remove the water.
• Set the Drain outlet
downward, so that the
Drain water can run off.
Water dripping inside room. • Unit installation.
• Drain Tray-Styrofoam
pieces blocking drain
channel.
• Tilted to inside room.
• Clogged.
• Restricted run off.
• Clogged or blocked.
• Tilt unit to outside
slightly.
• Remove the foreign
materials.
Frozen Evaporator • Temperature setting.
• Air Filter/Evaporator.
• Temperature difference
and running current.
• Set too low for ambient
conditions.
• Clogged or Dirty.
• REFER TO
PERFORMANCE
EVALUATION
• Outdoor temperature
low (Night time).
• Restricted air
circulation.
• Leakage of refrigerant
or refrigeration system
is blocked.
• Set the Main Control
knob to Fan to melt ice
and set the
Temperature Control to
higher temperature.
• Clean Air
filter/Evaporator.
• Locate and repair leak.
• Flush refrigeration
cycle.
9
CW-XC100VK / CW-XC120VK

9 Operation Details
9.1. Fan Mode Operation
• Fan operation only. Fan in operation according to Remote Control or Main Unit (Touch Control Panel) setting.
9.1.1. Manual Setting of Fan Speed
• Basic Fan Speed can be manually adjusted (Lo or Hi) by using the Fan Speed Selection Button/Pad at Remote Control or Main
Unit (Touch Control Panel).
9.2. Cooling Mode Operation
• Cooling in operation according to Remote Control or Main Unit (Touch Control Panel) setting.
9.2.1. Time Delay Safety Control (3 minute)
• When the compressor is stopped by Operation Switch at the Remote Control or Main Unit (Touch Control Panel), it restart after
3 minutes when the Operation Switch at the Remote Control or Main Unit (Touch Control Panel) is turned ON.
• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
• Protection of compressor to balance the pressure in the refrigeration cycle for 3 minutes.
9.2.2. 7 minutes Time Saved Control
• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
ON temperature and OFF temperature.
9.2.3. Starting Current Control
• When the compressor and fan motor are simultaneously started, the fan motor will operate 1.6 seconds later.
9.2.4. Freeze Prevention Control
If the temperature of the indoor heat exchanger falls
continuously below 10°C for 3 minutes or more, the
compressor turns off to protect the heat exchanger from
freezing. The fan speed setting remains the same.
Compressor restarts when the heat exchanger temperature
rises to 12°C (Recovery).
*3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
9.2.5. Compressor Reverse Rotation Protection Control
• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and heat
exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically (Time Delay Safety Control is valid).
10
CW-XC100VK / CW-XC120VK