Quiet (Low Noise) Operation - Daikin ZQG71~140L7V1B Service Manual

ESIE12-06
2.5

Quiet (Low Noise) 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)
2.5.1 Quiet (Low Noise) Operation by Automatic Control
Table
Silent operation can be set by field setting from the wired remote controller:
Description
Silent
Operation
Low noise
start &
stop time
Method
When setting mode 16(26)-0-02, quiet (low noise) 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 Priority
When setting mode 16(26)-0-04, the low noise operation will be stopped when the heating or
Setting 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
Field Setting
Mode First Second Code No.
No. Code
No.
01
16(26) 0 OFF
1 —
Maximum
ambient
+8 hours
temperature
Trend line indicating fluctuation of
outdoor ambient temperature in 24
hours.
Field Setting from Remote Controller
02 03
Low noise —
activation
— 22h00 ~
06h00
Start night End night
quiet +10 hours quiet
operation operation
04 05
Low noise —
+ capacity
priority
22h00 ~ 20h00 ~
08h00 08h00
85