Aprilaire 1850 Dehumidifier User Manual


 
VENTILATION (CONTINUED)
VENT-AUTO & VENT-TIMED
OUTDOOR TEMPERATURE SENSOR INSTALLATION
The dehumidifier can ventilate in four modes.
Vent-Timed: Ventilation occurs based only on time setting; no temperature restrictions.
Vent-Auto-B: Ventilation prevented when outdoor temperature is below 0°F and above 100°F. Between 0°F – 20°F ventilation is only allowed
during a HVAC heat call.
Vent-Auto-C: Ventilation prevented when outdoor temperature is below 0°F and above 100°F.
Vent-Auto-D: Ventilation prevented when outdoor temperature is below 0°F and above 90°F. Between 0°F – 40°F ventilation is only allowed
during a HVAC heat call.
Vent-Auto-B, -C, -D modes apply outdoor temperature limits and require an outdoor temperature sensor to be installed.
The Outdoor Temperature Sensor should be installed outside in a shaded location, or in the outdoor air intake duct.
NORTH, EAST
OR WEST SIDE
OF HOME
OUTDOOR
TEMPERATURE
SENSOR
SENSOR
SENSOR
BRACKET
ABOVE EXPECTED
SNOW LINE
OUTDOOR
TEMPERATURE SENSOR
LEADS
FIGURE 27 – ODT Mounted Outside
36" MAX.
CENTER LINE
OUTSIDE WALL
FIGURE 28 – ODT Mounted in Intake Duct
B2202617-D B2202617-E
20