Step 7 - Convert To Horizontal And Connect Ductwork (When Required) - Carrier WeatherMaster 50GC 04-06 Series Installation Instructions Manual

.
"B"
REQUIRED
SPREADER
BARS
UNIT
50GC-*04
50GC-*05
50GC-*06
NOTES:
1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used.
2. Dimensions in ( ) are in millimeters.
3. Hook rigging shackles through holes in base rail, as shown in detail "A." Holes in base rails are centered around the unit center of
gravity. Use wooden top to prevent rigging straps from damaging unit.
Step 7 — Convert to Horizontal and Connect
Ductwork (When Required)
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 configuration. To
convert to horizontal configuration, remove screws from side duct
opening covers (see Fig. 6) and remove covers. Use the screws to
install the covers on vertical duct openings with the insulation-side
down. The panels must be inserted into the notches on the basepan
to properly seal. The notches are covered by the tape used to
secure the insulation to the basepan and are not easily seen. See
Fig. 7 for position of the notches in the basepan. Seals around duct
openings must be tight. Secure with screws as shown in Fig. 8.
Cover seams with foil duct tape.
Field-supplied flanges should be attached to horizontal duct open-
ings and all ductwork should be secured to the flanges. Insulate
and weatherproof all external ductwork, joints, and roof or build-
ing 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.
REMOVABLE HORIZONTAL
RETURN DUCT OPENING COVER
REMOVABLE HORIZONTAL
SUPPLY DUCT OPENING COVER
Fig. 6 — Horizontal Conversion Panels
36"- 54"
PLACE ALL SEAL STRIP IN PLACE
(914-1371)
BEFORE PLACING UNIT ON ROOF CURB.
"C"
"A"
SEE DETAIL "A"
MAX WEIGHT
lb kg in.
780 354 74.5
863 391 74.5
969 440 74.5
Fig. 5 — Rigging Details
DUCT END
DIMENSIONS
A B
mm in.
1890 35.5
1890 35.5
1890 35.0
NOTCHES
Fig. 7 — Location of Notches
Fig. 8 — Horizontal Duct Panels In Place
10
DETAIL "A"
C
mm in. mm
900 33.5 850
900 33.5 850
890 41.5 1055
NOTCHES
BASEPAN
SCREWS
DUCT COVERS
SHEET METAL
FACE UP
BASEPAN