Installation; Jobsite Survey; Step 1 - Plan For Unit Location; Roof Mount - Carrier WeatherMaster Series Installation Instructions Manual

C
LOCATION
Unit disconnect is mounted on panel
No disconnect, convenience outlet option
A
Recommended service clearance
Minimum clearance
Surface behind servicer is grounded (e.g., metal, masonry wall)
B Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass)
Check for sources of flue products within 10 ft of unit fresh air intake hood
Side condensate drain is used
C
Minimum clearance
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
D
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.

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 installation
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 — Plan for Unit Location
Select a location for the unit and its support system (curb or oth-
er) that provides for the minimum clearances required for safety.
This includes the clearance to combustible surfaces, unit perfor-
mance and service access below, around and above unit as speci-
fied in unit drawings. See Fig. 4.
B
Fig. 4 — Service Clearance Dimensional Drawing — Sizes 07-12
CONDITION
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 the
unit.
Select a unit mounting system that provides adequate
height to allow installation of condensate trap per require-
ments. Refer to Step 9 — Install External Condensate Trap
and Line – for required trap dimensions.

ROOF MOUNT

Check building codes for weight distribution require-
ments. Unit operating weight is shown in Table 2.
8
D
A
DIMENSION
48 in. (1219 mm)
18 in. (457 mm)
18 in. (457 mm)
12 in. (305 mm)
42 in. (1067 mm)
36 in. (914 mm)
Special
36 in. (914 mm)
18 in. (457 mm)
42 in. (1067 mm)
36 in. (914 mm)