Carrier 50DL - Manual

#
Number One
Air Conditioning
l\^er
mstaflation, Start-Up
and Service Instructions
Carrier Parkway • Syracuse NY 13221
Single-Package Cooling Units
INSTALLATION
Rigging and Unit Placement — Inspect unit for
transportation damage. File claim with transporta­
tion agency. Do not remove shipping skid until unit
is ready to be set in final location. Do not drop unit;
keep upright. Use spreader bars over unit to prevent
sling or cable damage. Rollers may be used to move
unit across a roof. Level by using unit frame as
reference. See Fig. 1 for additional information.
Unit weight is shown in Table 1.
Fig. 1 — Rigging Details
Units are designed to be hoisted only. However,
units with optional shipping skids may be moved
with a fork truck. Refer to Accessory Roof Curb
Installation Instructions for additional information
as required.
Roof Curb — Assemble and install as described in
instructions shipped with this accessory. Accessory
roof curb and information required to field fabricate
a roof curb of 2-in. x 14-in. planks is shown in Fig. 2.
Install insulation, cant strips, roofing and flashing as
required. For unit drains to function properly, curb
must be level or within tolerances shown in Fig. 3.
Roof Mount — Check building codes for weight
distribution requirements. Unit weight is shown
in Table 1.
Slab Mount — Provide a level concrete slab that
extends beyond unit cabinet at least 6 inches. Make
a slab 8 in. thick with 4 in. above grade. Use gravel
apron in front of condenser air inlet to prevent grass
and foliage from obstructing airflow.
Alternate Unit Support Methods — Where the
preferred curb or slab mount cannot be used,
support unit with sleepers on perimeter, using curb
support area. However, if sleepers cannot be used,
support long sides of unit (dimension “A,” Fig. 4)
with 4-in. X 4-in. pads equally spaced on each side.
Unit may sag if supported by corners only.
Positioning — Unit condenser air inlets and outlets
may be located in any compass direction since they
are not affected by wind. Provide clearances around
and above unit for airflow, safety and service
access (Fig. 4).
Do not install unit in an indoor location. Do not
locate air inlets near exhaust vents or other sources
of contaminated air.
Although unit is weatherproof, guard against
water from higher level runoff and overhangs.
Field-Fabricated Ductwork — Secure all ducts to
building structure. Use flexible duct connectors be­
tween unit and ducts as required. Insulate and
weatherproof all external ductwork, joints and all
roof openings with flashing and mastic in accord­
ance with applicable codes.
Carrier Corporation 1983 Form 50DL-1SI