3.Low Ambient Cooling; 4.Quiet Shift; 5.Ac/Heat Pump Rpm Max; 6.Defrost Fan Delay - Carrier Infinity SYSTXCCITW01 Installation Instructions Manual

Default = 30 minutes
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6.3.4.3. Low Ambient Cooling
Selecting YES will enable the low ambient cooling operation in the outdoor unit.
This setting is only available with communicating outdoor units and with Cooling
Lockout set to NONE. Low ambient kits are not needed with communicating
outdoor units. After the selection is made, touch SAVE.
Low Ambient Cooling: Yes or No
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Default = No
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6.3.4.4. 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.
Quiet Shift: On or Off
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Default = Off
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6.3.4.5. 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.
AC Heat Pump Max RPM: Adjustable from 4500 – 7000
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Default = 4500 RPM
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6.3.4.6. 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
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