Service manual

Field settings ESIE05-03
4–24 Part 4 – Commissioning and Test Run
3
1
4
5
2.11 Silent Operation
Purpose Lower the operation sound of the outdoor unit.
Setting Silent Operation can be activated by:
1 Automatic control (By field setting from remote controller)
2 External activation (from optional PCB KRP58M)
2.11.1 Silent Operation by Automatic control
Table Silent operation can be set by field setting from the wired remote controller:
Method When setting mode 16(26)-0-02, silent operation will be carried out by presuming the current time in
accordance with the outside temperature.
Automatic mode will start when the outdoor temperature is = average max of last 10 days -5°C and
will be conducted for 10 hours.
The maximum outdoor temperature is supposed to occur at 14:00h.
As the time judgement is made in accordance with the outdoor temperature, the above mentioned
timing is an estimation only.
Capacity
precedence setting
When setting mode 16(26)-0-04, the low noise operation will be stopped when the heating or cooling
load increases. In that case, the operation will return to normal operation. The unit will return to
low-noise operation when the heating or cooling load decreases again.
Graph
Descrip-
tion
Mode First
Code
Second Code
01 02 03 04 05
Silent
Operation
16(26) 0 OFF Low
noise
activation
—Low
noise +
capacity
priority
—
Low noise
start &
stop time
1——22h00 ~
06h00
22h00 ~
08h00
20h00 ~
08h00
Maximum
ambient
temperature
+8 hours
Start night
quiet
operation
+10 hours
End night
quiet
operation
Trend line indicating fluctuation of
outdoor ambient temperature in 24
hours.
ESIE05-03.book Page 24 Wednesday, April 6, 2005 4:09 PM