Daikin E-Series Service Manual page 158

SiAU18-715
3.2.2 Setting of Low Noise Operation and Demand Operation
Setting of Low Noise Operation
By connecting the external contact input to the low noise input of the outdoor unit external
control adapter (optional), you can lower operating noise by 2-3 dB.
When the low noise operation is carried out automatically at night (The external control
adapter for outdoor unit is not required)
1. While in "Setting mode 2", select the setting condition (i.e., "Mode 1", "Mode 2", or "Mode 3")
2. If necessary, while in "Setting mode 2", select the setting condition (i.e., "20:00", "22:00", or
3. If necessary, while in "Setting mode 2", select the setting condition (i.e., "06:00", "07:00", or
4. If necessary, while in "Setting mode 2", set the setting condition for set item No. 29 (Setting
Image of operation
Test Operation
for set item No. 22 (Setting of nighttime low noise level).
"24:00") for set item No. 26 (Setting of start time of nighttime low noise operation).
(Use the start time as a guide since it is estimated according to outdoor temperatures.)
"08:00") for set item No. 27 (Setting of end time of nighttime low noise operation).
(Use the end time as a guide since it is estimated according to outdoor temperatures.)
of capacity precedence) to "ON".
(If the condition is set to "ON", when the air-conditioning load reaches a high level, the
system will be put into normal operation mode even during nighttime.)
Field Setting
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