Positioning On Curb; Step 7 - Convert To Horizontal And Connect Ductwork (When Required) - Carrier WeatherMaster 48HC14 Installation Instructions Manual

"B"
NOTES:

POSITIONING ON CURB

For full perimeter curbs CRRFCURB074A00 and 075A00,the
clearance between the roof curb and the front and rear base
rails should be 1 / -in. (6.4 mm). The clearance between the
4
curb and the end base rails should be
fit applications with curbs CRRFCURB003A01 and 4A01, the
unit should be position as shown in Fig. 7. Maintain the
15 1 / -in. (394 mm) and 8 5 /
2 8
the 22 / -in. (567 mm) dimension to float if necessary.
5
16
Fig. 7 — Retrofit Installation Dimensions
If the alternative condensate drain location through the bottom
of the unit is used in conjunction with a retrofit curb, the hole
in the curb must be moved 12
of the unit. (See Fig. 8.)
Although unit is weatherproof, guard against water from higher
level runoff and overhangs.
Remove all shipping materials and top skid. Remove extra cen-
ter post from the condenser end of the unit so that the condens-
er end of the unit matches Fig. 29 and 30. Recycle or dispose of
all shipping materials.
PLACE ALL SEAL STRIP IN PLACE BEFORE PLACING
UNIT ON ROOF CURB.
36"-54"
(914-1371)
"C"
"A"
SEE DETAIL "A"
MAX
WEIGHT
UNIT
lb
48HC**14 2215
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.
Fig. 6 — Rigging Details
/ -in. (13 mm). For retro-
1
2
-in. (220 mm) clearances and allow
1 / -in. (320 mm) towards the end
2
DUCT END
DIMENSIONS
A
kg in. mm in.
1009 116.0 2945 62.5
Fig. 8 — Alternative Condensate Drain Hole Positions
IMPORTANT: If the unit has the factory-installed Thru-the-
Base option, make sure to complete installation of the option
before placing the unit on the roof curb. See the following sec-
tions:
• Factory-Option Thru-Base Connections (Gas Connec-
tion) on page 15
• Factory-Option Thru-Base Connections (Electrical Con-
nections) on page 23
NOTE: If gas and/or electrical connections are not going to occur
at this time, tape or otherwise cover the fittings so that moisture
does not get into the building or conduit in the interim.
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 op-
tion may be field-converted to horizontal ducted configuration.
To convert to horizontal configuration, remove screws from
11
DETAIL "A"
B C
mm in. mm
1590 59.5 1510
Original New Position
Position (moved 12.5-in.)