Daikin REYQ72 Serveice Manual page 111

Field Setting
3.2.3 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 external control adapter for
outdoor unit (optional), you can lower operating noise by 2-3 dB.
A. When the low noise operation is carried out by external instructions (with the use
1. Set "External low noise / Demand YES/NO setting" to "External low noise / Demand YES".
2. Set "External low noise level setting" on the outdoor unit PC board, as the need arises.
3. Set "Capacity precedence setting" on the outdoor unit PC board, as the need arises.
B. When the low noise operation is carried out automatically at night (The external
1. Set "Night-time low noise setting" on the outdoor unit PC board. (Set by Setting Mode 2)
2. Set "Night-time low noise start setting" on the outdoor unit PC board, as the need arises.
3. Set "Night-time low noise end setting" on the outdoor unit PC board, as the need arises.
4. Set "Capacity precedence setting" on the outdoor unit PC board, as the need arises.
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of the external control adapter for outdoor unit)
(Set by Setting Mode 2)
(Lower noise operation can be carried out by "Mode 2" than by "Mode 1", and by "Mode 3"
than by "Mode 2".)
(If set to "ON", when air conditioning load gets higher, the low noise instructions are
neglected to switch to normal operation.) (Set by Setting Mode 2)
control adapter for outdoor unit is not required)
(Lower noise operation can be carried out by "Mode 2" than by "Mode 1", and by "Mode 3"
than by "Mode 2".)
(Set by Setting Mode 2)
(Since the time is presumed in accordance with the outdoor temperature, the starting time is
a target only.)
(Set by Setting Mode 2)
(Since the time is presumed in accordance with the outdoor temperature, the ending time is
a target only.)
(Set by Setting Mode 2)
(If set to "ON", when air conditioning load gets higher, the status is switched to normal
operation even at night.)
SiUS39-602
Test Operation