Aprilaire 1750A Installation,Safety & Maintenance Manual page 7

SYSTEM SETUP
OFF
A
B
HVAC FAN
HVAC FAN
WHL HOUSE CONVERTIBLE
VENT-AUTO VENT-TIMED
CYCLE PERIOD
30 MIN.
1 HOUR
2 HOUR
3 HOUR
30
MIN.
0 60
MIN MIN.
OFF TEST
CYCLE TIME
THERMOSTAT HVAC EQUIPMENT
R
C
G
W
Y
ON
DEHUMIDIFIER
CONTROL
R
C
G
W
Y
90-964
90-965