Bryant Legacy 547K 14, Руководство по установке

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Fig. 3 — Service Clearances — 547K*14 Units
INSTALLATION
Jobsite Survey
Complete the following checks before installation.
1. Consult local building codes and the NEC (National Elec -
trical 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
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 Fig. 3.
NOTE: Consider also the effect of adjacent units.
Be sure that unit is installed such that snow will not block the
combustion intake or flue outlet.
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 for removal and disposal of frost and ice that will form
during the heating-defrost mode as well as allow installation of
condensate trap per requirements. See Install External Conden -
sate Trap and Line on page 11 for required trap dimensions.
ROOF MOUNT
Check building codes for weight distribution requirements.
Unit operating weight is shown in Table 2.
NOTE: Unit is not designed to have overhead obstruction. Contact Application Engineering for guidance on any application planning overhead
obstruction or for vertical clearances.
LOCATION
DIMENSION
in. (mm)
CONDITION
A
48 (1219)
18 (457)
18 (457)
12 (305)
Unit disconnect is mounted on panel.
No disconnect, convenience outlet option.
Recommended service clearance.
Minimum clearance.
B
42 (1067)
36 (914)
Special
Surface behind servicer is grounded (e.g., metal, masonry wall).
Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass).
Check for sources of flue products within 10 ft (3 m) of unit fresh air intake hood.
C
36 (914)
18 (457)
Side condensate drain is used.
Minimum clearance.
D
42 (1067)
36 (914)
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit).
Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass).
C
D
A
B
Table 2 — Operating Weights
547K*14 LB (kg)
BASE UNIT 1250 (567)
ECONOMIZER
VERTICAL 130 (47)
HORIZONTAL 242 (110)
POWERED OUTLET 35 (16)
CURB
14 in. (356 mm) 180 (82)
16 in. (610 mm) 245 (116)