Bryant installation instructions Unit Operating Weight, 581B 036, 048, 060, 072

NOTES:

1.	Place unit on curb as close as possible to the duct end.
2.	Dimension in ( ) is 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 grav- ity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.

4.Weights include base unit without economizer. See Table 1 for unit operating weights and economizer weights.

5.Weights include base unit without the Perfect Humidity™ dehumid- ification system. See Table 1 for additional unit operating weights with the Perfect Humidity system.

CAUTION: All panels must be in place when rigging.

UNIT	OPERATING		“A”		“B”		“C”
	WEIGHT
581B
	lb	kg	in.	mm	in.	mm	in.	mm
036	530	240	73.69	1872	35.50	902	33.31	847
048	540	245	73.69	1872	35.50	902	33.31	847
060	560	254	73.69	1872	35.50	902	33.31	847
072	635	288	73.69	1872	35.50	902	33.31	847

Fig. 6 — Rigging Details

Size gas supply piping for 0.5-in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection.

Support gas piping as shown in the table in Fig. 9. For exam- ple, a 3/4-in. gas pipe must have one field-fabricated support beam every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams. See Fig. 9 for typical pipe guide and locations of external manual gas shutoff valve.

NOTE: If accessory thru-the-bottom connections and roof curb are used, refer to the Thru-the-Bottom Accessory

Installation Instructions for information on power wiring and gas connection piping. Power wiring, control wiring and gas connection piping can be routed through field-drilled holes in the basepan, which is specifically designed and dim- pled for drilling the accessory connection holes.

CAUTION: When connecting the gas line to the unit gas valve, the installer MUST use a backup wrench to prevent damage to the valve.

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