Back Up Battery; Specifications; Function; Battery Check - Daikin LXE10E-A Service Manual

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3.5 Back Up Battery

3.5.1 Specifications

DECOS 3c/d controller can use two types of batteries; DRY or Rechargeable (Optional).
The battery is installed to the lid of the controller.
DRY Battery: 9V block battery. (This can be purchased locally.)
Rechargeable: DAIKIN original rechargeable battery

3.5.2 Function

This battery is used without main power supply for the following functions.
DRY Battery
( Purchased locally )
Rechargeable
(Optional)
: Available : Not available
1) Display wake up (Refer to clause 3.3.2) page 3-11.
Setting/Display the following items on the LCD display.
<Display>
Temperature on the return air sensor
Temperature on the supply air sensor
Ventilating volume of USDA1, USDA2, USDA3 (CTS)
<Setting change>
Inside temperature, defrosting interval, dehumidifying set (Optional), Unit ON/OFF
2) USDA data log
USDA sensors data log every 1 hour
3) Trip data log
Trip data log every 1 hour.
3.5.3 Battery check (When using optional rechargeable battery)
1) Rechargeable battery life
The rechargeable battery has a service life of about 2 years.
If the battery has been used for 2 years or longer, USDA data log or trip data log may
not be available, even if LED is lit when the battery checked.
1) Display wake up
3-36
2) USDA data log 3) Trip data log