50
6.3.4.5. Quiet Shift
This option turns on Quiet Shift function in 1--stage or 2--stage communicating heat
pumps. After the selection is made, touch SAVE.
NOTE: This option is not available with variable speed heat pumps nor geothermal
units.
S Quiet Shift:OnorOff
d Default = Off
6.3.4.6. AC/Heat Pump RPM Max
Used with variable capacity heat pumps, this option clamps the operating speed
of the heat pump to this maximum. Used to reduce operating noise while in high
heating capacity. Reducing this value will reduce the heating capacity of the heat
pump. After the selection is made, touch SAVE.
S AC Heat Pump Max RPM: Adjustable from 4500 – 7000
d Default = 7000 RPM
6.3.4.7. Defrost Fan Delay
Turns on the outdoor unit fan at the end of a defrost cycle for approximately 12
seconds. This helps to reduce any nuisance refrigerant noise caused by the
switching reversing valve. This setup is only available on communicating heat
pumps. After the selection is made, touch SAVE.
S Defrost Fan Delay: Yes or No
d Default = No
6.3.4.8. Brownout Disable
This option turns off the high voltage brownout detection function in the outdoor
unit control. After the selection is made, touch SAVE.
S Brownout Disable: On or Off
d Default = Off
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