Daikin VRV S RXQ4/5ARV1 - Night-Time Low Noise Operation and Demand Operation

SiAF332111E Field Settings for Outdoor Unit (4/5 HP Models)
Part 5 Field Settings and Test Operation 117
2.3 Night-Time Low Noise Operation and Demand Operation
2.3.1 Night-Time Low Noise Operation
By connecting the external contact input to the low noise input of the outdoor unit external
control adaptor (optional), you can lower operating noise by 2-3 dB.
When night-time low noise operation is carried out automatically (External control
adaptor for outdoor unit is not required)
1. While in setting mode 2, select a night-time low noise operation level (i.e., Level 1, Level 2,
Level 3) for the item 2-22.
2. If necessary, while in setting mode 2, select a starting time of night-time low noise operation
(i.e., 8:00 PM, 10:00 PM, or 12:00 AM) for the item 2-26. (Use the starting time as a guide since
it is estimated according to outdoor temperatures.)
3. If necessary, while in setting mode 2, select an ending time of night-time low noise operation
(i.e., 6:00 AM, 7:00 AM, or 8:00 AM) for the item 2-27. (Use the ending time as a guide since it
is estimated according to outdoor air temperatures.)
4. If necessary, while in setting mode 2, set the item 2-29 (Capacity priority setting) 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 night-time.)
Operation
sound
Rated
Level 1
Level 2
Level 3
Time set with night-time low noise
operation start setting
If capacity priority is set in
Capacity priority setting, the fan
speed will be increased
according to the load of air
conditioning when load is heavier.
Time set with night-time low
noise operation end setting
Operation sound during
night-time low noise
operation mode can be set
with night-time low noise
operation level setting.
(Factory setting is OFF.)
Night-time
Operation sound level set with
night-time low noise operation
setting
6:00 AM8:00 PM 10:00 PM 12:00 AM 7:00 AM 8:00 AM
Set with night-time low noise operation end setting.
(Factory setting is 8:00 AM.)
Set with night-time low noise operation start setting.
(Factory setting is 10:00 PM.)