Step 7 - Convert To Horizontal And Connect Ductwork (When Required); Step 8 - Install Outside Air Hood; Economizer And Two Position Damper; Economizer Hood And Two-Position Hood - Carrier WeatherMaker 48TC 06 Installation Instructions Manual

Step 7 — Convert to Horizontal and Connect
Ductwork (When Required) —
vertical duct configuration. Unit without factory-installed
economizer or return air smoke detector option may be field-
converted to horizontal ducted configuration. To convert to
horizontal configuration, remove screws from side duct open-
ing covers and remove covers. Using the same screws, install
covers on vertical duct openings with the insulation-side down.
Seals around duct openings must be tight. See Fig. 7.
REMOVABLE HORIZONTAL
RETURN DUCT OPENING COVER
Fig. 7 — Horizontal Conversion Panels
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 AND TWO POSITION DAMPER HOOD
PACKAGE REMOVAL AND SETUP — FACTORY
OPTION
NOTE: Economizer and two position damper are not avail-
able as factory installed options for single phase (-3 voltage
code) models.
1. The hood is shipped in knock-down form and must be
field assembled. The indoor coil access panel is used
as the hood top while the hood sides, divider and filter
are packaged together, attached to a metal support tray
using plastic stretch wrap, and shipped in the return air
compartment behind the indoor coil access panel. The
hood 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. 8.
Unit is shipped in the
REMOVABLE HORIZONTAL
SUPPLY DUCT OPENING COVER
FILTER ACCESS PANEL
Fig. 8 — Typical Access Panel Locations
3. Locate the (2) screws holding the metal tray to the base-
pan and remove. Locate and cut the (2) plastic tie-wraps
securing the assembly to the damper. (See Fig. 9.) Be
careful to not damage any wiring or cut tie-wraps secur-
ing any wiring.
Fig. 9 — Economizer and Two-Position Damper
Hood Parts Location
Carefully lift the hood assembly (with metal tray) through
the filter access opening and assemble per the steps outlined in
Economizer Hood and Two–Position Hood, below.

ECONOMIZER HOOD AND TWO-POSITION HOOD

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.
10
COMPRESSOR
ACCESS PANEL
OUTDOOR-AIR OPENING AND
INDOOR COIL ACCESS PANEL
HOOD PARTS
PLASTIC TIE WRAP
QTY (2)
SCREWS FOR METAL T
QTY (2)