Bryant 551J Plan for Unit Location, Plan for Sequence of Unit Installation, Roof mount

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 installa- tion 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 minimum clearances required for safety (including clearance to combustible surfaces), unit performance and service access below, around and above unit as specified in unit drawings. See Fig. 2.

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18” (457)

42" (1067)

18" (457)

42" (1067)

1Required bottom condensate drain connection. Otherwise, 36” (914mm) for condensate connection.

C07459

Fig. 2 - Service Clearance Dimensional Drawing

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 requirements. Refer to Step 9 — Install External Condensate Trap and Line – for required trap dimensions.

Roof mount —

Check building codes for weight distribution requirements. Unit operating weight is shown in Table 1.

Step 2 — Plan for Sequence of Unit Installation

The support method used for this unit will dictate different sequences for the steps of unit installation. For example, on curb-mounted units, some accessories must be installed on the unit before the unit is placed on the curb. Review the following for recommended sequences for installation steps.

Curb-mounted installation —

Install curb

Install field-fabricated ductwork inside curb

Install accessory thru-base service connection package (affects curb and unit) (refer to accessory installation instructions for details)

Prepare bottom condensate drain connection to suit planned condensate line routing (refer to Step 9 for details)

Rig and place unit Install outdoor air hood

Install condensate line trap and piping Make electrical connections

Install other accessories

551J

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Table 1 – Operating Weights

551J			UNITS LB (KG)
Component	*04		*05		*06
Base Unit	458	(208)	545	(247)	550	(249)
Economizer
Vertical	50	(23)	50	(23)	50	(23)
Horizontal	80	(36)	80	(36)	80	(36)
Cu Fins	25	(11)	43	(20)	56	(25)
Powered Outlet	32	(15)	32	(15)	32	(15)
Curb
14--- in/356 mm	110 (50)		110 (50)		110 (50)
24--- in/610 mm	145 (66)		145 (66)		145 (66)

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