Wiring To External Or Remote Controls; Wiring To A Float Switch - Aprilaire E080 Installation & Owner's Manual

WIRING TO EXTERNAL OR REMOTE CONTROLS

The dehumidifier can be wired to an external control that
senses the humidity in the living space, such as an AprilAire
Thermostat or the Model 76 Dehumidifier Control. This is most
often done when the dehumidifier is ducted to the HVAC
system and is located in a hard-to-reach location such as an
attic or basement
The Model 76, when used as a remote control, allows the user
to see the humidity sensed by the dehumidifier and adjust the
dehumidifier setting from a remote location. This is most often
used when the dehumidifier is not ducted to the HVAC system
and serves a hard-to-reach location such as a crawl space or
basement
If using an external control, wire to the DH terminals of the
dehumidifier (see FIGURE 21) Most external controls use a
normally open switch that closes with a dehumidification
demand, in which case leave the NC/NO switch in the NO
position For controls that use a normally closed switch, put the
NC/NO switch in the NC position If using the AprilAire Model 76
as a remote control, wire to the (+ - A B) terminals Refer to the
installation instructions for the control being used for wiring
details
FIGURE 21: WIRING TO AN EXTERNAL OR REMOTE CONTROL
A
+ - A B
NC NO
A. USE FOR EXTERNAL CONTROL APPLICATIONS
B. USE FOR REMOTE CONTROL APPLICATIONS
ODT VENT DEH
Remote Sensor Dampers
B

WIRING TO A FLOAT SWITCH

Use only if the installation includes a float switch or a
condensate pump. The dehumidifier leaves the factory with a
jumper wire installed in the float switch terminals. Remove the
jumper and wire the float switch terminals to the float switch or
condensate pump overflow switch as shown in FIGURE 22
FIGURE 22: FLOAT SWITCH WIRING
90-1857
90-2694
NORMALLY CLOSED
FLOAT SWITCH
13