Whole Building - Aprilaire 1720 Installation,Safety & Maintenance Manual

WHOLE BUILDING INSTALLATION AND OPERATION
In this configuration the dehumidifier will pull air from the return duct. The air passes through the dehumidifier, where moisture is
removed, and then returned to the HVAC system downstream of the cooling coil in the supply plenum. This installation is used
when the HVAC unit conditions the area where dehumidification is needed.
REQUIRED COMPONENTS
1 – 6508 Normally Closed Power Open Damper
Duct Work
24 VAC Transformer (10 VA minimum)
Thermostat Wire
FIGURE 3 – DUCTING
4
OPTIONAL COMPONENTS
6506 Ventilation Damper
24 VAC Transformer (10 VA minimum) for Ventilation Damper
8052 Outdoor Temperature Sensor
Normally Closed Condensate Overflow Safety Switch
90-973