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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.
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.
2) USDA data log 3) Trip data log
DRY Battery
(
Purchased locally
)
1) Display wake up
Rechargeable
(Optional)
: Available : Not available
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