LOCATION DIMENSION CONDITION
48-in (1219 mm) Unit disconnect is mounted on panel
18-in (457 mm) No disconnect, convenience outlet option
A
18-in (457) mm Recommended service clearance
12-in (305 mm) Minimum clearance
42-in (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall)
B 36-in (914 mm) Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass)
Special Check sources of flue products within 10-ft of unit fresh air intake hood
36-in (914 mm) Side condensate drain is used
C
18-in (457 mm) Minimum clearance
42-in (1067 mm) Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
D
36-in (914 mm Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass)
NOTE: Unit not designed to have overhead obstruction. Contact Application Engineering for guidance on any application
planning overhead obstruction or for vertical clearances.
Fig. 3 - Service Clearance Dimensional Drawing
C08337
.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 location (from project plans) or select
unit location.
3. Check for possible overhead obstructions which may
interfere with unit lifting or rigging.
Step 1 1 Plan for Unit Location
Select a location for the unit and its support system (curb
or other) that provides for minimum clearances required
for safety (including clearance to combustible surfaces),
unit performance and service access below, around and
above unit as specified in unit drawings. See Fig. 3.
NOTE: Consider also the effect of adjacent units.
Unit may be installed directly on wood flooring 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 air
inlets near exhaust vents or other sources of contaminated
air.
Although unit is weatherproof, avoid locations that permit
water from higher level runoff and overhangs to fall onto
unit.
Select a unit mounting system that provides adequate
height to allow installation of condensate trap per
requirements. Refer to Step 9 I Install External
Condensate Trap and Line - for required trap dimensions.
Roof Mount i
Check building codes for weight distribution
requirements. Unit operating weight is shown in Table 1.
To Next Page
Loading...
