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Condensate Drain
The 15GCSX unit is equipped with a 3/4 inch FPT coupling
for condensate line connection. Plumbing must conform to
local codes. Use a sealing compound on male pipe
threads.
The drain line must be properly trapped and routed to a
suitable drain. See figure 5 for proper drain arrangement.
The drain line must pitch to an open drain or pump a
minimum of 1 inch per 10 feet to prevent clogging of the
line. The drain line must be supported so that weight of
drain line is not carried by drain line connection. Seal
around drain connection with suitable material to prevent
air leakage into return air system.
Drain piping should not be smaller than drain connection
at coil. An open vent in drain line will some times be
required due to line length, friction and static pressure.
Drains should be constructed in a manner to facilitate
future cleaning.
NOTE − The condensate drain line MUST be trapped to
provide proper drainage.
CAUTION
Condensate line connection must be hand−tight-
ened. Do not use tools.
UNIT
Minimum Pitch
1 in. (25 mm) per
10’ (3 m) of line
MOUNTING
FRAME
Figure 5
OPEN
VENT
Trap must be deep enough to offset maximum
static difference (Generally, 3 inches minimum).
Typical Condensate Drain
Filters
Filters are not factory−supplied with the unit; however,
optional internally installed filter kits are available. Filter kit
92M54 is used with 2, 2−1/2 and 3−ton units. Filter kit 92M55
is used with 3−1/2, 4 and 5−ton units. The filter kits
accommodate the use of 1", 2" or 4" filters. If the optional
filter kit is not used, a filter must be field−installed.
Filters must always be installed ahead of evaporator coil
and must be kept clean or replaced. Dirty filters will reduce
the airflow of the unit. Filter sizes are shown in table 1.