WARNING: Before performing service or maintenance operations on unit, turn off gas supply then unit main power switch. Electrical shock or explosion could cause serious injury or death.
CAUTION: Puron
A | C |
MAXIMUM ALLOWABLE
DIFFERENCE (in.)
B
|
|
|
1/4 | 1/4 | 1/4 |
Fig. 2—Unit Leveling Tolerances
C99065
A. General
The 583B units (see Fig. 1) are fully
Models with an N in the thirteenth position of the model number are dedicated Low NOx units designed for California installation. These models meet the California maximum oxides of nitrogen (NOx) emissions requirements of 40 nanograms/joule or less as shipped from the factory and must be installed in California Air Quality Management Districts where a Low NOx rule exists.
RECEIVING AND INSTALLATION I. CHECK EQUIPMENT
IDENTIFY UNIT — The unit model number and serial number are stamped on unit identification plate. Check this information against shipping papers and job data.
INSPECT SHIPMENT — Inspect for shipping damage while unit is still on shipping pallet. If unit appears to be damaged or is torn loose from its anchorage, have it examined by transportation inspectors before removal. Forward claim papers directly to transportation company. Manufacturer is not responsible for any damage incurred in transit.
Check all items against shipping list. Immediately notify the nearest Bryant Air Conditioning office if any item is missing. To prevent loss or damage, leave all parts in original packages until installation.
II. PROVIDE UNIT SUPPORT
ROOF CURB — Install accessory roof curb in accordance with instructions shipped with curb. See Figs. 4 and 5 and Table 1 for roof curb dimensions. Install insulation, cant strips, roofing, and flashing. Ductwork must be attached to curb.
IMPORTANT: The gasketing of the unit to the roof curb is critical for a watertight seal. Install gasketing material supplied with the roof curb. Improperly applied gasketing can also result in air leaks and poor unit performance.
Curb should be level to within 1 /4 inch. This is necessary for unit drain to function properly. Refer to accessory roof curb installation instructions for additional information as required (see Fig. 2).
OPTIONAL | OPTIONAL |
RETURN | SUPPLY |
AIR | AIR |
OPENING | OPENING |
2"
(50.8mm)
EVAP.COND.
COILCOIL
C99014
Fig. 3—Slab Mounting Details
SLAB MOUNT — Place the unit on a solid, level concrete pad that is a minimum of 4 in. thick with 2 in. above grade. The slab should be flush on the compressor end of the unit (to allow condensate drain installation) and should extend 2 in. on the three remaining sides of the unit. See Fig. 3. Do not secure the unit to the slab except when required by local codes.
GROUND MOUNT — The unit may be installed either on a slab or placed directly on the ground if local codes permit. Place the unit on level ground prepared with gravel for condensate dis- charge.
III. FIELD FABRICATE DUCTWORK
Secure all ducts to roof curb and building structure on vertical discharge units. Do not connect ductwork to unit. For horizontal applications, unit is provided with flanges on the horizontal openings. All ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.
Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier.
If a plenum return is used on a vertical unit, the return should be ducted through the roof deck to comply with applicable fire codes. A minimum clearance is not required around ductwork. Cabinet
