Bryant 548J*14D Series, Installation Instructions Manual

Page: 14 / 56

14
TOP
PANEL
INDOOR COIL
ACCESS PANEL
SCREW
HOOD DIVIDER
LEFT
HOOD
SIDE
C10008
Fig. 15 -- Economizer Hood Construction
3. Remove the shipping tape holding the economizer
barometric relief damper in place.
4. Insert the hood divider between the hood sides. See
Fig. 15 and 16. Secure hood divider with 3 screws on
each hood side. The hood divider is also used as the
bottom filter rack for the aluminum filter.
5. Attach the post that separates the filters with the
screws provided.
6. Open the filter clips which are located underneath the
hood top. Insert the aluminum filters into the bottom
filter rack (hood divider). Push the filter into position
past the open filter clips. Close the filter clips to lock
the filters into place. See Fig. 16.
DIVIDER
BAROMETRIC
RELIEF
CLEANABLE
ALUMINUM
FILTER
FILTER
HOOD
FILTER
CLIP
OUTSIDE
AIR
C10009
Fig. 16 -- Economizer Filter Installation
7. Install the two rain deflectors on the edge of the hood
top as shown in Fig. 14.
8. Caulk the ends of the joint between the unit top panel
and the hood top as shown in Fig. 14.
9. Replace the filter access panel.
Step 9 — Install External Condensate Trap and
Line
The unit has one
3
/
4
-in. condensate drain connection on
the end of the condensate pan and an alternate connection
on the bottom. See Fig. 17. Unit airflow configuration
does not determine which drain connection to use. Either
drain connection can be used with vertical or horizontal
applications.
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
/
2
--in. square socket drive extension.
To use the alternate bottom drain connection, remove the
red drain plug from the bottom connection (use a
1
/
2
--in.
square socket drive extension) and install it in the side
drain connection.
DRAIN
(FACTORY-IN
S TALLED)
PLUG
CONDEN S ATE PAN ( S IDE VIEW)
S TANDARD
S IDE DRAIN
ALTERNATE
BOTTOM DRAIN
C08021
Fig. 17 -- Condensate Drain Pan (Side View)
The piping for the condensate drain and external trap can
be completed after the unit is in place. See Fig. 18.
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4 in. (102 mm) trap is recommended.
MINIMUM PITCH
1” (25mm) PER
10’ (3m) OF LINE
BASE RAIL
OPEN
VENT
TO ROOF
DRAIN
DRAIN PLUG
ROOF
CURB
SEE NOTE
3˝(76mm)
MIN
a50--- 9660
Fig. 18 -- Condensate Drain Piping Details
All units must have an external trap for condensate
drainage. 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
(
3
/
4
-in.).