Aprilaire E070 - Installing the Drain; Installing the Condensate Pump; Installing Ductwork

INSTALLING THE DRAIN
USING HARD PIPE:
• Install a 3/4” PVC slip x 3/4” MNPT PVC tting to the
dehumidier and use 3/4” nominal PVC Schedule 40 pipe to
run the condensate line to the nearest oor drain or to an
outside location that slopes away from the building�
• Always maintain a constant downward slope in drain
piping. Ensure that drain tubing does not interfere with
removal of the side panel or lter door.
• Do not use metal ttings and only hand-tighten threaded
ttings. PTFE thread seal tape is recommended for threaded
connections�
• Install a tee or three-way elbow at the dehumidier outlet
with a small, capped vertical tube (do not cement cap in
place) to allow for cleaner to be poured into the drain line
(see FIGURE 6).
• PVC primer and cement is recommended for slip-t
connections (do not cement threaded connections).
USING FLEXIBLE TUBING:
• Install the provided 3/4” NPT x 3/4” hose barb tting and use
3/4” I.D. exible drain tubing. Hand-tighten the tting to the
dehumidier. PTFE thread seal tape is recommended for
threaded connections�
• Always maintain a constant downward slope from the
dehumidier to the nearest oor drain or condensate pump,
and do not allow soft tubing to curl up, which may result in
air lock.
INSTALLING THE CONDENSATE PUMP
• The AprilAire Model 4856 condensate pump is capable of
lifting water up to 22 feet�
• The dehumidier can be elevated (while remaining level) to
increase downward slope for proper draining�
• Wire the oat switch terminals to the normally closed
contacts on the condensate pump (see FIGURE 14).
INSTALLING DUCTWORK
Add ductwork to the inlet and outlet of the dehumidier to
ensure dehumidied air is circulated throughout the crawl
space and reduce the noise level of the dehumidier. Point
the inlet and outlet ducts in opposite directions to minimize
recirculation of dehumidied air.
• Maximum recommended total duct length is 100 feet.
• To avoid pulling in dirt and other particles, do not lay intake
duct on the oor of the crawl space.
NOTE: Maximum allowable static pressure for this unit is 0.4" w.c.
A
B
C
D
E
FIGURE 11: DRAIN AND CONDENSATE PUMP INSTALLATION
A. FLOAT SWITCH WIRE
B.
3
⁄4" MNPT x
3
⁄4" BARB
FITTING
(INCLUDED)
C.
3
⁄4" CLEAR PVC
TUBING (INCLUDED)
D. CONDENSATE PUMP
(PART #4856)
E. 8" DIAMETER
INSULATED
FLEX DUCT
90 -2306
8 English