Dehumidifier • For HVAC Installer Only
69-2298—01 4
Place the dehumidifier on supports to raise the
base of the unit. Do not place the dehumidifier
directly on structural building members without
vibration absorbers or unwanted noise may result.
The dehumidifier may be suspended from structural
members by supporting the entire base of the unit
via cross members, rigid frame, or the like. Do
not hang the dehumidifier from the cabinet.
Remember to place a drain pan under the unit if
it is suspended above a finished area or above an
area where water leakage could cause damage.
4.1D Sizing Chart
*This sizing chart is based on extreme climates where
Rh levels are between 70 and 90% outdoor Rh. For
less extreme climates then larger homes can be
adequately served. Actual requirements may vary.
4.2 Electrical Requirements
Dehumidifier Capacity Required to
Maintain Desired Indoor Rh*
Home Size
(square
feet)
60% Indoor
Rh
55% Indoor
Rh
50% Indoor
Rh
Pints/day Pints/day Pints/day
2080 49-54 55-58 71-78
2600 61-68 65-72 90-97
3120 75-82 79-86 95-110
WARNING: Installation must be performed
by a qualified service technician and must
comply with local codes. Remove power to
the device before installing or servicing the
device. Failure to connect the device
according to these instructions may result in
damage to the device or the controls.
The dehumidifier plugs into a common grounded
115VAC outlet. The device draws 6.3 Amps under
normal operating conditions. If used in an area
which may become wet, a ground fault interrupter
(GFI) protected circuit is recommended.
IMPORTANT: Do not install the humidistat
where it may not accurately sense the relative
humidity such as near HVAC supply registers,
near exterior doors, on an outside wall, near
a window, or near a water source.
Refer to Section 6 for typical hookup diagrams.
Some of the control wires leaving the dehumidifier
may not be used with certain installations and
should be left unconnected with wire nuts taped
onto the stripped ends for safety.
4.3 Condensate (Water) Removal
The dehumidifier removes a large amount of moisture
from the air and the device must be connected to a
drain line that will carry away the excess water. A
trap in the drain line is recommended and may be
required by some local codes.
The drain line should be connected to the 3/4"
male pipe thread adaptor on the front of the
dehumidifier.
Care should be taken to install the drain line with
a continuous slope of 1" per 10' to assure proper
water removal.
4.4 Ducting
IMPORTANT: When connecting ventilation
duct, remove the label and 6" round
insulation plug from the ventilation duct
opening. If not using ventilation feature,
leave the insulation intact.
For the ideal installation, draw air from the central
part of the home and return it to the isolated areas
of the home like the bedrooms, den, utility room, or
family room. See Figure 2. Alternative installation
option can be completed by drawing air directly
from the return ducting and distributing through
the supply air to the home.
Another installation option is ducting directly from
the return and distributing directly back into the
system's return. See Figure 3. Fresh air ventilation
is optional and does not have to be ducted in order
for the dehumidifier to properly function.
IMPORTANT: DO NOT draw air directly from
the kitchen, laundry, or isolated basement.
Air may be drawn from a basement that is open
to the home. All flexible ducting connected to the
dehumidifier should be UL listed.
A short piece of flexible ducting on all dehumidifier
duct connections is recommended to reduce noise
and vibration transmitted to rigid ductwork in the
structure. Ducting the dehumidifier as mentioned
requires consideration of the following points:
