SiAF332111E
Field Settings for Outdoor Unit (6/8 HP Models)
Part 5 Field Settings and Test Operation
137
Mode 2-25: Night-time low noise operation level when using external input to optional board
DTA104A61/62.
If the system needs to be running under low noise operation conditions when an external
signal is sent to the unit, this setting defines the level of low noise that will be applied.
This setting will only be effective when the optional external control adaptor for outdoor
unit DTA104A61/62 is installed and the setting is enabled (mode 2-12-1).
When night-time low noise operation is actually performed, conditions can be checked
via mode 1-1.
The night-time low noise operation will not be performed in one of following conditions:
Startup of system, or
During oil return, or
30 minutes after external input opened, or
Capacity priority setting is active (refer to mode 2-29-1) and limit condition is met.
Default value: 2 (level 2)
Night-time low noise operation level can be selected to 1, 2, or 3 (field setting 2-25-1, 2,
3).
Mode 2-26:
Start time automatic night-time low noise
operation. When the auto
night-time low noise operation is active (refer to field setting 2-22) outdoor will start when
start time is reached. The time judgment is taken from outdoor air tendency.
Default value: 2 (10:00 PM)
Field setting 1: 8:00 PM, 3: 12:00 AM (midnight).
Mode 2-27:
Stop time automatic night-time low noise
operation. When the auto
night-time low noise operation is active (refer to field setting 2-22), outdoor unit will stop the
night-time low noise operation level automatically when stop time is reached.
Default value: 3 (8:00 AM)
Field setting 1: 6:00 AM, 2: 7:00 AM
Mode 2-28:
Power transistor check
mode. To evaluate the output of the power transistors.
Use this function in case error code is displayed related to defective inverter PCB or
compressor is locked.
Default value: 0. Power transistor check mode is not active.
Field setting 1: Power transistor check mode is active.
Function:
Inverter circuit gives output of 10 rps in sequence by all 6 transistors. Remove the
U/V/W terminals of the compressor, and connect to the inverter checker module. If all
6 LEDs blink, the transistors switch correctly.
When the power transistor check mode is set back to 0 (default), after turning off the
power supply, 2 LEDs will light up to indicate discharge of the DC voltage.
Peak in the outdoor
temperature
8 hrs
10 hrs
8:00 AM 12:00 PM
4:00 PM
8:00 PM 12:00 AM
4:00 AM
8:00 AM
50%
100%
Night mode ENDS
Night mode STARTS
Night
quiet mode
Min. 40 dB(A)*
40 dB(A)*
52 dB(A)
Load %
Operating
sound dB(A)
*45 dB(A)
for 3-phase models
Содержание VRV S RXMQ10ARY1
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