Installation; Step 1- Plan For Unit Location - Bryant LEGACY 580J*16 Series Installation Instructions Manual

DIMENSION
LOCATION
in. (mm)
48 (1219)
18 (457)
A
18 (457)
12 (305)
42 (1067)
B 36 (914)
Special
36 (914)
C
18 (457)
48 (1219)
42 (1067)
D
36 (914)
Special
NOTE: Unit is not designed to have overhead obstruction. Contact Application Engineering for guidance on any application planning overhead obstruction or
for vertical clearances.

INSTALLATION

Step 1 — Plan for Unit Location —
the unit and its support system (curb or other) that provides for the
minimum clearances required for safety. This includes the clear-
ance to combustible surfaces, unit performance and service access
below, around and above unit as specified in unit drawings. See
Fig. 2-4.
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. For proper
unit operation, adequate combustion and ventilation air must be
provided in accordance with Section 5.3 (Air for Combustion and
Ventilation) of the National Fuel Gas Code, ANSI Z223.1 (Ameri-
can National Standards Institute) and NFPA (National Fire Protec-
tion Association) 54 TIA-54-84-1. In Canada, installation must be
in accordance with the CAN1-B149 installation codes for gas
burning appliances.
C
B
CONDITION
Unit disconnect is mounted on panel.
No disconnect, convenience outlet option.
Recommended service clearance.
Minimum clearance.
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 of unit fresh air intake hood.
Side condensate drain is used.
Minimum clearance.
No flue discharge accessory installed, surface is combustible material.
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit).
Surface behind servicer is electrically non-conductive (e.g., wood, fiberglass).
Check for adjacent units or building fresh air intakes within 10-ft (3 m) of this unit's flue outlet.
Fig. 6 — Service Clearances — 580J*16 Units
Select a location for
A
Although unit is weatherproof, avoid locations that permit
water from higher level runoff and overhangs to fall onto the unit.
For sizes 08-14 only, locate mechanical draft system flue
assembly at least 4 ft (1.2 m) from any opening through which
combustion products could enter the building, and at least 4 ft
(1.2 m) from any adjacent building (or per local code). Locate the
flue assembly at least 10 ft (3.05 m) from an adjacent unit's fresh
air intake hood if within 3 ft (0.91 m) of same elevation (or per lo-
cal code). When unit is located adjacent to public walkways, flue
assembly must be at least 7 ft (2.1 m) above grade.
Select a unit mounting system that provides adequate height
to allow installation of condensate trap per requirements. See
Step 11 — Install External Condensate Trap and Line on
page 24 for required trap dimensions.
ROOF MOUNT — Check building codes for weight distribu-
tion requirements. Unit operating weight is shown in Table 2 (on
page 13).
11
D