6
Condensate Pan, Condensate Pump
and Float Switch
Always install the dehumidifier in a condensate pan when
locating in or above a finished space. Adhere to local codes
regarding draining of the condensate pan. If a condensate
pump is needed, install it in the condensate pan as well.
Install a condensate overflow safety switch (i.e. float switch)
in the condensate pan, remove the factory installed jumper
wire between the Float Switch terminals on the control and
wire the float switch to the dehumidifier as shown in
Figure
13
. Overflow safety switches on condensate pumps can
be wired to the Float Switch terminals in a similar fashion.
Figure 13. Float Switch Wiring
FLOA
T
Switch
DH
DH
NORMALLY CLOSED
FLOAT SWITCH
90-1857
Drain Installation – Model HCWHD4-130
The drain outlet on the dehumidifier can be hard piped
using a 3/4" PVC Slip x 3/4" MNPT fitting. Always maintain
a constant downward slope from the dehumidifier to the
drain.
NOTE:
PTFE thread seal tape is recommended for
the threaded connection and
hand tighten only
.
The dehumidifier must use a field supplied drain trap. Use
Lennox trap Catalog No. 49P66 or 91P90 or any 3/4" PVC
SCH 40 P- or J-trap. The trap must have a depth of 2". The
use of blocks under the dehumidifier may be necessary to
provide clearance.
Figure 12. Level the Unit
0.38" MIN
2.00" MAX
3/4" FNPT DRAIN
90-1885
Figure 10. Level the Unit
0.38" MIN
2.00" MAX
3/4" DRAIN
BUBBLE LEVEL
90-2592
LEVELING
The feet can be adjusted to level the unit, and if required,
to accommodate drain fittings and a secondary condensate
pan. Leveling is required to ensure proper drainage from
the dehumidifier. See
Figure 10
.
LEVELING
The feet can be adjusted to level the unit, and if required,
to accommodate drain fittings and a secondary condensate
pan. Leveling is required to ensure proper drainage from
the dehumidifier. See
Figure 12
.
Figure 11. Drain Trap
CLEAN OUT
PRESS IN
(DO NOT GLUE)
VENT
TO APPROVED
DRAIN
TRAP
DEPTH
2"
(51 mm)
VENT MUST EXTEND ABOVE HEIGHT OF
COIL DRAIN PAN BY 2 INCHES (51 mm)
1" x 3/4" x 3/4"
REDUCING TEE
WITH PLUG
LENNOX P-TRAP
49P66, J-TRAP
91P90, OR ANY
3/4" PVC SCH 40
P- OR J-TRAP
DRAIN LINE SHOULD SLOPE A MINIMUM
OF 1 INCH PER 10 FEET (25 mm per 3 m)