Field Fabricate Ductwork, Rig and Place Unit

		C
A	MAXIMUM ALLOWABLE
A	DIFFERENCE IN. (MM)
	DIFFERENCE IN. (MM)

B
B	A-B	B-C	A-C
	0.5” (13)	1.0” (25)	1.0” (25)

C10001

Fig. 4 - Unit Leveling Tolerances

Step 5 — Field Fabricate Ductwork

Cabinet return-air static pressure (a negative condition) shall not exceed 0.35 in. wg (87 Pa) with economizer or 0.45 in. wg (112 Pa) without economizer.

For vertical ducted applications, secure all ducts to roof curb and building structure. Do not connect ductwork to unit.

Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.

Ducts passing through unconditioned spaces 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.

For Units with Accessory Electric Heaters —

All installations require a minimum clearance to combustible surfaces of 1-in (25 mm) from duct for first 12-in (305 mm) away from unit.

!CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in damage to roofing materials.

Membrane roofs can be cut by sharp sheet metal edges. Be careful when placing any sheet metal parts on such roof.

Step 6 — Rig and Place Unit

When the unit is ready to be rigged and no longer will be lifted by a fork truck, the wood protector under the basepan must be removed. Remove 4 screws from each base rail. Wood protector will drop to the ground. See instructions on the unit base rails.

Keep unit upright and do not drop. Spreader bars are required. Rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 5 for additional information.

Lifting holes are provided in base rails as shown in Fig. 5. Refer to rigging instructions on unit.

!CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in equipment damage.

All panels must be in place when rigging. Unit is not designed for handling by fork truck.

Before setting the unit onto the curb, recheck gasketing on curb.

548J*14D

“B”

PLACE ALL GASKET IN PLACE BEFORE PLACING

UNIT ON ROOF CURB.

914 - 1371

( 36” - 54” )

“C”

DETAIL “A”

“A”

DUCT END

SEE DETAIL “A”

									C10281

	MAX WEIGHT				DIMENSIONS

UNIT				A		B			C
UNIT				A		B			C
	LB	KG	IN	MM	IN		MM	IN	MM

548J*14D	2015	916	116.0	2945	55.5	1410		59.5	1510

NOTES:

1.SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used.

2.Dimensions in ( ) are in millimeters.

3.Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered around the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit.

Fig. 5 - Rigging Details

548J*14D specifications

The Bryant 548J*14D is a highly efficient and versatile air conditioning unit designed to meet the varying demands of residential and light commercial applications. This model stands out due to its advanced engineering, energy-saving features, and reliable performance, making it an ideal choice for homeowners looking to enhance comfort without compromising on energy efficiency.

One of the main features of the Bryant 548J*14D is its excellent SEER (Seasonal Energy Efficiency Ratio) rating, which signifies its ability to provide cooling while consuming less energy. Optimized for efficiency, this unit employs a high-efficiency compressor that adjusts its output based on cooling demands, allowing it to use only the energy necessary to maintain a comfortable environment.

The unit’s all-aluminum evaporator coil ensures durability and resistance to corrosion, contributing to its longer lifespan and consistent performance. Additionally, the Bryant 548J*14D incorporates advanced refrigeration technologies for maximum heat transfer efficiency. This technology not only enhances cooling performance but also improves overall system reliability.

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In summary, the Bryant 548J*14D is a cutting-edge air conditioning unit that combines energy efficiency, quiet operation, and advanced technologies. With its robust construction, smart features, and reliable performance, it stands as a valuable solution for anyone looking to enhance comfort and save on energy costs in their homes or light commercial environments.