Sleep Mode; Id-Od Communication - Daikin FTXB50BV1B Service Manual

Function & Control

2.6 Sleep Mode

SLEEP Mode can be activated by pressing from the remote controller to keep the thermal comfort during
sleeping.
SLEEP Mode continues operation at the target temperature for the fi rst one hour, then automatically raises
the target temperature slightly in the case of cooling, or lowers it slightly in the case of heating. This prevents
excessive cooling in summer and excessive heating in winter to ensure comfortable sleeping conditions, and
also conserves electricity.
ON signal of sleep operation
ON signal of sleep operation+operation ON signal
target temperature
<COOL or DRY>
target temperature
<HEAT>
2.7 Indoor-Outdoor Communication
Master by outdoor unit.
Indoor controller board will transmit signal to outdoor controller board every 0.5s. Outdoor unit will response
to indoor once the valid data is received.
Indoor
Outdoor
If the data communication line between indoor and outdoor disrupted for 15s continuously, compressor will
stop, Outdoor fan stop with fan OFF timer. Indoor LED blinks error.If the communication resumes within 15s,
error code is clear and compressor restarts after 3 minutes.If the communication does not resume after 15s,
unit unable to restart and the error keep blinking.
15
run
sleep operation
1hr 1hr
(no offset on target
temperature)
(shift 0.5°C)
(shift 1.0°C)
OFF signal of sleep operation
operation OFF signal
(shift 1.0°C)
(shift 2.0°C)