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Heating Airflow, horizontal or downflow from .2 to .6” wg.
Selection
Low Stage High Stage
7-OFF 8-OFF A 600 850
7-ON 8-OFF B 625 900
7-OFF 8-ON C 650 925
7-ON 8-ON D 700 975
4YCY4024A1064
Switch Settings Nominal Airflow
Selection
Low Stage High Stage
7-OFF 8-OFF A 725 1000
7-ON 8-OFF B 775 1075
7-OFF 8-ON C 850 1150
7-ON 8-ON D 925 1250
4YCY4030A
Switch Settings Nominal Airflow
Selection
Low Stage High Stage
7-OFF 8-OFF A 725 1000
7-ON 8-OFF B 775 1075
7-OFF 8-ON C 850 1150
7-ON 8-ON D 925 1250
Selection
Low Stage High Stage
7-OFF 8-OFF A 825 1100
7-ON 8-OFF B 875 1175
7-OFF 8-ON C 950 1275
7-ON 8-ON D 1025 1375
* can be 1 or 3
4YCY4036A*075
4YCY4036A*096
Switch Settings Nominal Airflow
Switch Settings Nominal Airflow
* can be 1 or 3
Selection
Low Stage High Stage
7-OFF 8-OFF A 1075 1375
7-ON 8-OFF B 1100 1450
7-OFF 8-ON C 1150 1500
7-ON 8-ON D 1200 1575
4YCY4042A
Switch Settings Nominal Airflow
Selection
Low Stage High Stage
7-OFF 8-OFF A 1075 1375
7-ON 8-OFF B 1100 1450
7-OFF 8-ON C 1150 1500
7-ON 8-ON D 1200 1575
Selection
Low Stage High Stage
7-OFF 8-OFF A 1050 1500
7-ON 8-OFF B 1100 1575
7-OFF 8-ON C 1150 1625
7-ON 8-ON D 1200 1700
4YCY4048A*096
4YCY4048A*120
Nominal Airflow
* can be 1 or 3
* can be 1 or 3
Switch Settings
Switch Settings Nominal Airflow
Low Stage High Stage
7-OFF 8-OFF A 1375 1800
7-ON 8-OFF B 1450 1900
7-OFF 8-ON C 1525 1975
7-ON 8-ON D 1575 2075
Switch Settings Selection
4YCY4060A
Nominal Airflow
Indoor Blower Performance