Panasonic CS-W7DKR + CS-W9DKR + CS-W7DKR Series Service Manual & Repair Guide

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CS-W7DKR CU-W7DKR / CS-W9DKR CU-W9DKR / CS-W12DKR CU-W12DKR

2 Functions
2.1. Remote Control

AUTO HEAT COOL DRY OFF ON TIMER TIMER

FAN SPEED AIR SWING

MODE

OFF/ON

POWERFUL

FAN SPEED

QUIET TIMER ON 1 OFF

TEMP

AIR SWING

SET 2 3 CANCEL
CLOCK RESET

OFF / ON I

Operation Start / Stop Operation Mode Selection
· · · ·
AUTO HEAT COOL DRY

TEMP.

Room Temperature Setting
Heating, Cooling, Soft Dry Operation. · Increase or decrease set temperature (16°C to 30°C) Automatic Operation Operation with 2°C higher than · standard temperature. · Operation with standard temperature. Operation with 2°C lower than · standard temperature.

MODE

Automatic Operation Heating Operation Cooling Operation Soft Dry Operation

FAN SPEED

Indoor Fan Speed Selection
· · · · Low Fan Speed Medium Fan Speed High Fan Speed Automatic Fan Speed
ON-TIMER OFF-TIMER

Timer Operation Selection
· 24-hour, OFF / ON Real Timer Setting.

AUTO

L M

AIR SWING

Time / Timer Setting
· Hours and minutes setting.

Vertical Airflow Direction Control
· ·
AUTO

Automatic Vertical Airflow Control. Manual Vertical Airflow Control (5 stages of adjustment).

SET CANCEL

Timer Operation Set / Cancel
· ON Timer and OFF Timer setting and cancellation.

CLOCK POWERFUL

Powerful Operation Start / Stop Quiet Operation Start / Stop

Clock Setting
· Current time setting.

QUIET

Ionizer Operation Start / Stop

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CS-W7DKR CU-W7DKR / CS-W9DKR CU-W9DKR / CS-W12DKR CU-W12DKR

2.2.

Indoor Unit

AUTO OFF / ON

Automatic Operation Button
· Press for < 5 second to operate Automatic operation mode. Used when the remote control cannot be used. · Press for 5 second to operate Cooling operation mode and compressor force to on ("beep" sound will heard). Used when test running or servicing. · Within 20 second of Cooling operation, press continuously for 5 second to enter various setting mode. "beep, beep" sound will be heard. (Used to toggle remote control signal receiving sound or select remote control transmission code).

Random Auto Restart Control
· Unit will be restarted, when resume from power failure, at previous setting.

Indoor Fan Speed Control
· Manual control fan speed (High, Medium and Low). · Automatic fan speed.

Airflow Direction Control
· Vertical airflow control can be adjusted automatically or manually by remote control. · Horizontal airflow can be manually adjusted by hand.

Operation Indication Lamps (LED)
· POWER (Green) ............. Lights up in operation,
blinks in Automatic Operation judging and Hot Start operation. TIMER (Orange) ............ Lights up in Timer Setting. QUIET (Orange) ............. Lights up in Quiet Operation. POWERFUL (Orange) ...... Lights up in Powerful Operation. ION (Green) .................. Lights up in Ionizer Operation.
ALLERU-BUSTER (Blue) ... Lights up in operation.

Anti-Freezing Control
· To prevent indoor heat exchanger from freezing.

· · · ·

Starting Current Control
· To reduce the starting current.

Time Delay Safety Control
· Restarting is inhibited for appro. 3 minutes.

7 Minutes Time Save Control
· To reduce the built up humidity inside the room.

· SUPER

Anti-Dew Formation Control Operation Mode
· Heating, Cooling, Soft Dry and Automatic Operation. · Anti-Dew Formation Control for indoor unit discharge area.

Powerful Operation
· Reaches the desired room temperature quickly.

30 Minutes Time Save Control
· Heating operation only.

Timer Operation
· Delay OFF/ON Timer control.

Hot-Start Control
· To prevent cold air being discharge during Heating operation starts.

Quiet Operation
· To provide quiet operation.

Anti Cold Draft Control
· To prevent the cold draft during Heating mode operation in thermo off condition.

Ionizer Operation
· Generate and discharge negative ion.

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CS-W7DKR CU-W7DKR / CS-W9DKR CU-W9DKR / CS-W12DKR CU-W12DKR

2.3.

Outdoor Unit

Compressor Reverse Rotation Protection Control
· To protect compressor from reverse rotation when there is a instantaneous power failure.

Deice Control
· To prevent frosting at outdoor heat exchanger. (Only for Heating Operation) · Temperature of outdoor heat exchanger is sensed by TRS (Thermal Reed Switch). TRS OFF temperature 4°C. TRS ON temperature -3°C.

Overload Protector
· OLP to protect the compressor. Overload Protector will trip when ­ Temperature of compressor increases to 120°C. ­ High temperature or high current flows to compressor. (Refer circuit diagram for OLP characteristic)

Overload Protection Control
· Outdoor fan stops when indoor heat exchanger temperature rises to 51°C and above, and restarts when the indoor heat exchanger temperature drops to 49°C and below. · Compressor stop when indoor heat exchanger temperature reaches 65°C or above. (Heating Operation Only)

60 Secs. Forced Operation Control
· Once the compressor is activated, it does not stop within the first 60 secs. However, it stops immediately with remote control stop signal.

Compressor Protection Control
· If the outdoor fan motor is not running after compressor starts for 50 secs., compressor will stop. (Cooling and Soft Dry Operation only).

Outdoor Fan Operation Control
· Temperature Fuse.

4-Way Valve Control
· When the unit is switched to "OFF" during Heating Operation, 4-way valve stays at Heating position for 5 minutes.

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