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Daikin RXYQ5PY1 Service Manual Page 122

Daikin r-410a heat pump 50hz/60hz cooling only 50hz.
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Test Operation
4.4.2.3 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 outdoor unit external
control adapter (optional), you can lower operating noise by 2-3 dB.
Mode 1
Mode 2
Mode 3
A. When the low noise operation is carried out by external instructions (with the use
1. While in "Setting mode 2", set the setting condition for set item No. 12 (Setting of external
2. If necessary, while in "Setting mode 2", select the setting condition (i.e., "Mode 1", "Mode 2",
3. If necessary, while in "Setting mode 2", set the setting condition for the set item No. 29
B. When the low noise operation is carried out automatically at night (The external
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
116
Setting
Set the outdoor unit fan to Step 6 or lower.
Set the outdoor unit fan to Step 5 or lower.
Set the outdoor unit fan to Step 4 or lower.
of the external control adapter for outdoor unit)
low noise/demand operation) to "YES".
or "Mode 3") for set item No. 25 (Setting of external low noise level).
(Setting of capacity precedence) to "ON".
(If the condition is set to "ON", when the air-conditioning load reaches a high level, the low
noise operation command will be ignored to put the system into normal operation mode.)
control adapter for outdoor unit is not required)
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.)
Content
SiEN34-705
General Information

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