Daikin FTXC25AV1B Manuel D'installation page 18

The refrigerant is pre-charged in the outdoor unit. If the piping length is less than 7.5m, then additional charge after vacuuming
is not necessary. If the piping length is more than 7.5m, then use the additional charge value as indicated in the table.
Additional refrigerant charge [g] per additional 1m length as tabulated
Indoor
Model
Outdoor
Additional charge [g/m]
Example:
FTXC25 & RXC25 with 12m piping length, additional piping length is 4.5m. Thus,
Additional charge = 4.5[m] x 17[g/m]
= 76.5[g]
IR Signal Receiver
When an infrared remote control operating signal has been
transmitted, the signal receiver on the indoor unit will respond
as below to confirm acceptance of the signal transmission.
ON to OFF
OFF to ON
Pump down / Cool force on
Others
Cooling Unit/Heat Pump Unit
The table shows the LED indicator lights for the air conditioner
unit under normal operation and fault conditions. The LED
indicator lights are located at the side of the air conditioner
unit.
The heat pump units are equipped with an "auto" mode
sensor whereby it will provide reasonable room temperature
by switching automatically to either "cool" or "heat" mode
according to the temperature set by the user.
LED Indicator Lights: Normal Operation And Fault Conditions For Cooling/Heat Pump Unit
COOL/HEAT
(BLUE/RED)
BLUE
RED
RED
BLUE
BLUE
BLUE
RED
BLUE
ON
ADDITIONAL CHARGE
(FTXC)
(RXC)
INDICATOR LIGHTS
1 Long Beep
2 Short Beep
1 Short Beep
Operation
Cool mode
Heat mode
Auto mode in Heating operation
Auto mode in Cooling operation
Timer on
Sleep mode on
Fan mode on
Dry mode on
Defrost operation
Unit error
Blinking
25 35
25 35
17 17
LED Indicator Lights for Cooling Unit/Heat Pump
Unit
ON/OFF
1-16
50 60
50 60
17 17
IR Receiver
IR Receiver
Cool/Heat
Timer
Sleep
ON/OFF switch