Auto Restart Control; Indication Panel; Drain Pump Control; Pump Down Operation By Cn-S - Panasonic CS-MS9SD3H Service Manual

11.5 Auto Restart Control

1 When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within
three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be
selected randomly) after power supply resumes.
2 This type of control is not applicable during ON/OFF Timer setting.
3 This control can be omitted by open the circuit of JP10 at indoor unit printed board.

11.6 Indication Panel

LED
Color
Light ON
Light OFF
Note:
POWER

If POWER LED blinks, the possible operation of the unit is ON Timer sampling.

If TIMER LED blinks, there is an abnormality operation occurs.

11.7 Drain Pump Control


This unit has built-in with drain pump.
Control content

During COOL/DRY mode.
During COOL/DRY mode, drain pump starts 10 seconds after indoor fan motor starts.
o
The drain pump turns ON and turns OFF periodically. (ON or OFF duration depends on room temperature).
o

After COOL/DRY mode, when unit turns OFF (power standby) or changes to HEAT mode.
The drain pump turns ON for 60 seconds immediately.
o

Error judgment
When float switch detects ON signal continuously for 2 minutes 30 seconds, error code H21 are shown.
o
When float switch ON has operated 2 times within 20 minutes, error code H35 are shown.
o

11.8 Pump Down Operation By CN-S


A convenience method to activate pump down operation.

Control start condition:
During power standby condition, short CN-S continuously between 1 second and 10 seconds.
o

Control stop condition:
480 seconds after pump down operation starts.
o
CN-S is shorted again during pump down operation.
o
POWER
GREEN
Operation ON Timer setting ON
Operation OFF Timer setting OFF
TIMER POWERFUL
ORANGE
Powerful Mode ON
Powerful Mode OFF
36
ORANGE
Quiet Mode ON
Quiet Mode OFF
QUIET
ORANGE