SiUS281117
Field Setting from Outdoor Unit
88
Field Setting
3. If necessary, while in "Setting mode 2", select the setting condition (i.e., "06:00", "07:00", or
"08:00") for set item No. 27 (Setting of end time of low night noise operation).
(Use the end time as a guide since it is estimated according to outdoor air temperatures.)
4. If necessary, while in "Setting mode 2", set the setting condition for set item No. 29 (Setting
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.)
Image of operation in the case of A
Image of operation in the case of B
Image of operation in the case of A and B
Rated operation
sound
Operation sound
Approx. 55 db (target)
Approx. 50 db (target)
Approx. 45 db (target)
Note1: Above values are reference only (measured in silent room)
Note2: Above values are for 1 module only.
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.
Low noise mode instructing
Operation sound level set with "External low noise setting"
Operation sound during low
noise mode is instructed
can be set with "External low
noise level setting"
(Factory setting is "Mode 2".)
(The power consumption may be
increased by about 10 %.)
(The power consumption may be
increased by about 20 %.)
(The power consumption may be
increased by about 30 %.)
Operation sound of
level 2
Operation sound of
level 1
Operation sound of
level 3
Operation sound
of level 2
Operation sound
of level 1
Operation sound
of level 3
Time set with "Low night noise start setting"
Time set with "Low night noise end setting"
Operation sound level set with
"Low night noise setting"
Set with "Low night noise start setting".
(Factory setting is "PM 10:00".)
Set with "Low night noise end setting".
(Factory setting is "AM 8:00".)
Operation sound during
night-time low noise mode is
instructed can be set with
"Low night noise level
setting".
(Factory setting is "OFF".)
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.
Night-time
Operation sound
Rated operation
sound
PM 8:00
PM 0:00
PM 10:00
AM 6:00 AM 7:00 AM 8:00
Operation sound
of level 2
Operation sound
of level 1
Operation sound
of level 3
When external low noise
instruction is received during the
operation with low night noise
mode.
Mole 2 precedes Level 1 and
Level 3 precedes Level 2.
Time set with "Low night noise start setting"
Time set with "Low night noise end setting"
Set with "Low night noise start setting".
(Factory setting is "PM 10:00".)
Set with "Low night noise end setting".
(Factory setting is "AM 8:00".)
Operation sound during low noise
mode is instructed can be set with
"External low noise level setting".
(Factory setting is "Mode 2".)
Operation sound during low night
noise mode is instructed can be
set with "Low night noise level
setting".
(Factory setting is "OFF".)
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.
Night-time
Low noise mode
instructing
Operation sound set with
"External low noise setting"
AM 6:00 AM 7:00 AM 8:00
PM 8:00 PM 10:00 PM 0:00
Low noise mode instructing
Operation sound set with
"External low noise setting"
Operation sound
level set with "Low
night noise setting"
Operation sound
Rated operation
sound
