Step 9 - Install External Condensate Trap And Line - Carrier WeatherMaster 50HC14 Installation Instructions Manual

INDOOR
COIL
ACCESS
PANEL
Fig. 15 — Indoor Coil Access Panel Relocation
SCREW
LEFT
HOOD
SIDE
HOOD DIVIDER
Fig. 16 — Economizer Hood Construction
DIVIDER
CLEANABLE
ALUMINUM
FILTER
BAROMETRIC
RELIEF
Fig. 17 — Economizer Filter Installation
SIDE
PANEL
RAIN DEFLECTORS
TOP
PANEL
CAULK
HERE
INDOOR
COIL
ACCESS
PANEL
TOP
PANEL
INDOOR COIL
ACCESS PANEL
OUTSIDE
AIR
HOOD
FILTER
FILTER
CLIP
Step 9 — Install External Condensate Trap and
Line
The unit has one 3 /
end of the condensate pan and an alternate connection on the
bottom. See Fig. 18. Unit airflow configuration does not de-
termine which drain connection to use. Either drain connec-
tion can be used with vertical or horizontal applications.
CONDENSATE PAN (SIDE VIEW)
STANDARD
SIDE DRAIN
Fig. 18 — Condensate Drain Pan (Side View)
When using the standard side drain connection, ensure the
red plug in the alternate bottom connection is tight. Do this
before setting the unit in place. The red drain pan can be
tightened with a 1 / -in. square socket drive extension.
2
To use the alternate bottom drain connection, remove the
red drain plug from the bottom connection (use a
square socket drive extension) and install it in the side drain
connection.
The piping for the condensate drain and external trap can
be completed after the unit is in place. See Fig. 19.
All units must have an external trap for condensate drain-
age. Install a trap at least 4-in. (102 mm) deep and protect
against freeze-up. If drain line is installed downstream from
the external trap, pitch the line away from the unit at 1-in. per
10 ft (25 mm in 3 m) of run. Do not use a pipe size smaller
than the unit connection (
MINIMUM PITCH
1˝ (25 mm) PER
10´ (3 m) OF LINE
TO ROOF
DRAIN
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4-in. (102 mm) trap is recommended.
Fig. 19 — Condensate Drain Piping Details
13
-in. condensate drain connection on the
4
ALTERNATE
DRAIN PLUG
BOTTOM DRAIN
(FACTORY-INSTALLED)
3 / -in.).
4
BASE RAIL
3˝ (76 mm)
MIN
OPEN
VENT
DRAIN PLUG
1 / -in.
2
SEE NOTE
ROOF
CURB