4
C09002
Fig. 1 -- Unit Dimensional Drawing – 04 — 07 Size Unit (cont.)
INSTALLATION
Jobsite Survey
Complete the following checks before installation.
1. Consult local building codes and the NEC (National
Electrical Code) ANSI/NFPA 70 for special installa-
tion requirements.
2. Determine unit locati on (from projec t plans) or select
unit location.
3. Check for possible overhead obstructions which may
interfere with unit lifting or rigging.
Step 1 — Plan for Unit Location
Select a location for the unit and its support system (curb
or other) that provides for the minimum clearances
required for safety. This includes the clearance to
combustible surfaces, unit performance and service access
below, around and above unit as specified in unit
drawings. See Fig. 2.
NOTE: Consider also the effect of adjacent units.
Unit may be installed directly on wo od floo ring or on Class
A, B, or C roof--covering material when roof curb is used.
Do not install unit in an indoor location. Do not locate a ir
inlets near exhaust vents or other sources of contaminated
air.
18” (457)
42" (1067)
18" (457)
42" (1067)
1
Required bottom condensate drain connection.
Otherwise, 36” (914mm) for condensate connection.
1
C07459
Fig. 2 -- Service Clearance Dimensional Drawing
Although unit is weathe rproof, avoid locations that permit
water from higher level runoff and overhangs to fal l onto
the unit.
Selec t a unit mounting system that provides adequate
height to allow for removal and disposal of frost and ice
that will form durring the heating--defrost mode as well as
allow installation of condensate t rap per requirements.
RefertoStep9—InstallExternalCondensate Trap and
Line – for required trap dimensions.
50TCQA
