BCXC-SVX01A-EN 25
Installation
Procedure
Heating Coil Option
Note: The hydronic heating coil option is
factory installed in either the reheat or
preheat position. Coils can be rotated for
either right or left-hand connections.
If you need to rotate the hydronic heating
coil option to change the coil connection
side, follow the procedure below.
1. Remove both coil access panels.
2. Remove the coil and rotate to change
connection position.
3. Exchange coil patch plates.
4. Knock out drain pipe connections on
new coil hand access panel.
5. Plug old drain connections.
Mixing Box Option
Materials provided:
• mounting legs
• interconnecting linkage, LH or RH
attachment
Materials needed:
• grooved and extendible drive rods,
1
/
2
-inch O.D. grooved
• screws
The mixing box option ships separately
for field installation. It has two low-leak,
opposed blade dampers and all neces-
sary interconnecting linkage components
for left or right hand attachment onto
1
/
2
-inch O.D. grooved, extendible drive
rods. Also, mounting legs are provided
for floor mounting on a vertical unit.
Knockouts are provided to suspend the
mixing box from the ceiling horizontally.
Installation
Mixing Box Installation Procedure
1. Support the mixing box independent
of the unit in the horizontal position.
2. Install the mixing box as a sleeve
around the duct collar of the filter
frame. To attach the mixing box to the
filter frame, insert screws through the
matching the holes on all sides of the
mixing box and filter frame.
3. Install the linkage, following the
procedure below.
Linkage Installation Procedure
1. Attach the linkage on either the right or
left side of the mixing box following the
procedure below.
2. Open the damper blades fully. Locate
drive rods on the LH or RH side for
linkage attachment. Loosen drive rod
set screw, without removing.
3. Remove knockouts on side access
panel adjacent to the drive rods.
4. Pierce a hole through the insulation at
the knockouts to allow the drive rod to
extend freely through side of mixing
box. Cut away insulation sufficiently to
allow drive rod to turn smoothly.
5. Extend drive rod end at desired
position beyond side of unit. Tighten
drive rod set screws.
6. Attach linkage and tighten all set
screws. Note that neither hand levers
are provided. However, mixing box
actuators are a factory-provided option
that ship inside the mixing box when
ordered.
7. Position linkage so both sets of
dampers operate freely and so that
when one damper is fully open, the
other is fully closed.
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