10
Step 7 — Convert to Horizontal and Connect
Unit is shipped in the vertical duct configuration. Unit without
factory-installed economizer or return air smoke detector op
-
tion may be field-converted to horizontal ducted configuration
using accessory CRDUCTCV002A00. To convert to horizontal
configuration, remove screws from side duct opening covers
and remove covers.
Discard the supply duct cover. Install accessory
CRDUCTCV002A00 to cover the vertical supply duct open
-
ing. Use the return duct cover removed from the end panel to
cover the vertical return duct opening.
ALL UNITS
Field-supplied flanges should be attached to horizontal duct
openings and all ductwork should be secured to the flanges. In
-
sulate and weatherproof all external ductwork, joints, and roof
or building openings with counter flashing and mastic in accor
-
dance with applicable codes.
Do not cover or obscure visibility to the unit’s informative data
plate when insulating horizontal ductwork.
Step 8 — Install Outside Air Hood
ECONOMIZER HOOD REMOVAL (FACTORY OPTION)
1. The hood is shipped in knock-down form and located in
the return air compartment. It is attached to the econo
-
mizer using 2 plastic tie-wraps.
2. To gain access to the hood, remove the filter access panel
(see Fig. 9).
3. Locate and cut the (2) plastic tie-wraps being careful (see
Fig. 10). Be careful to not damage any wiring or cut tie-
wraps securing any wiring.
4. Carefully lift the hood assembly (with metal tray) through
the filter access opening and assemble per the steps out
-
lined in
Economizer and Two-Position Hood Setup,
on
page 10.
Fig. 9 — Typical Access Panel Locations
Fig. 10 — Economizer Hood Package Location
ECONOMIZER HOOD SETUP
NOTE: If the power exhaust accessory is to be installed on the
unit, the hood shipped with the unit will not be used and must be
discarded. Save the aluminum filter for use in the power exhaust
hood assembly.
1. The indoor coil access panel will be used as the top of the
hood. If the panel is still attached to the unit, remove the
screws along the sides and bottom of the panels. See
Fig. 11.
2. Swing out indoor coil access panel and insert the hood
sides under the panel (hood top). Be careful not to lift the
panel too far, as it might fall out. Use the screws provided
to attach the hood sides to the hood top. Use screws pro
-
vided to attach the hood sides to the unit. See Fig. 12.
3. Remove the shipping tape holding the economizer baro
-
metric relief damper in place (economizer only).
4. Insert the hood divider between the hood sides. See Fig. 12
and 13. Secure hood divider with 2 screws on each hood
side. The hood divider is also used as the bottom filter rack
for the aluminum filter.
5. Open the filter clips, which are located underneath the
hood top. Insert the aluminum filter into the bottom filter
rack (hood divider). Push the filter into position past the
open filter clips. Close the filter clips to lock the filter into
place. See Fig. 13.
6. Caulk the ends of the joint between the unit top panel and
the hood top.
7. Replace the filter access panel.
Filter Access Panel
Indoor Coil Access Panel
Economizer
Cut Plastic Ties
(2) Places
Remove
Hood Parts
Summary of Contents for Legacy 547K 14
Page 4: ...4 Fig 2 547K 14 Unit Dimensional Drawing...
Page 5: ...5 Fig 2 547K 14 Unit Dimensional Drawing cont...
Page 8: ...8 Fig 5 547K 14 Roof Curb Details...
Page 21: ...21 Fig 41 Typical Control Wiring Diagram Electromechanical with W7220 Controller...
Page 22: ...22 Fig 42 Typical Power Wiring Diagram 208 230 460 3 60 Unit Shown...
Page 23: ...23 Fig 43 Typical Power Wiring Diagram 575 3 60 Unit Shown...
Page 41: ......
