Step 7 - Convert To Horizontal And Connect; All Units; Step 8 - Install Outside Air Hood; Economizer Hood Removal - Carrier RAV180 Installation Instructions Manual

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
option may be field-converted to horizontal ducted configu-
ration using accessory CRDUCTCV002A00. To convert to
horizontal configuration, remove screws from side duct
opening covers and remove covers.
Discard the supply duct
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.
Insulate and weatherproof all external ductwork, joints, and
roof or building openings with counter flashing and mastic in
accordance 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
economizer using two 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 outlined in Economizer and Two-Position
Hood Setup, on page 11.
Fig. 9 — Typical Access Panel Locations
10
cover. Install accessory
FILTER ACCESS PANEL
INDOOR COIL ACCESS PANEL
Specifications subject to change without notice.
Fig. 10 — Economizer Hood Package Location
TWO-POSITION DAMPER HOOD REMOVAL
(FACTORY OPTION)
1. The hood is shipped in knock-down form and assem-
bled to a metal support tray using plastic stretch
wrap. Located in the return air compartment, the
assembly's metal tray is attached to the basepan and
also attached to the damper using two plastic tie-
wraps.
2. To gain access to the hood, remove the filter access
panel. See Fig. 9.
3. Locate the (2) screws holding the metal tray to the
basepan and remove. In order to remove the screws,
it may be necessary to remove the panel underneath
the two-position damper. Remove the two screws.
Locate and cut the (2) plastic tie-wraps securing the
assembly to the damper. (See Fig. 11.) 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 outlined in Economizer and Two-Position
Damper Hood Setup, on page 11.
5. If removed, reattach the panel under the damper.
Fig. 11 — Two Position Damper Hood Package
Location
REMOVE
HOOD PARTS
CUT PLASTIC TIES
(2) PLACES
ECONOMIZER
HOOD PARTS
PLASTIC TIE WRAP
QTY (2)
SCREWS FOR
METAL TRAY
QTY (2)
RAV-180-01SI