Bryant 558D Maximum Allowable Difference, IV. Field Connections, External Trap Condensate Drain

MAXIMUM ALLOWABLE DIFFERENCE (in.)

A-B	B-C	A-C
0.5	1.0	1.0

Fig. 5 Ð Unit Leveling Tolerances

IV. FIELD CONNECTIONS

A. External Trap Condensate Drain

The unit's 3¤4-in. condensate drain connections are located on the bottom and side of the unit. Unit discharge connec- tions do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications.

When using the standard side drain connection, make sure the plug in the alternate bottom connection is tight before in- stalling the unit.

To use the bottom drain connection for a roof curb installa- tion, relocate the factory-installed plug from the bottom con- nection to the side connection. See Fig. 7. The piping for the condensate drain and external trap can be completed after the unit is in place.

All units must have an external trap for condensate drain- age. Install a trap at least 4-in. deep and protect against freeze- up. See Fig. 8. If drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection.

B. Field Duct Connections

NOTE: The design and installation of the duct system must be in accordance with NFPA standards for the installation of nonresidence-type air conditioning and ventilating systems, NFPA No. 90A or residence-type, NFPA No. 90B, and/or local codes and ordinances.

Adhere to the following criteria when selecting, sizing and installing the duct system:

1.Remove appropriate panels from unit to obtain either horizontal or vertical discharge. If units are installed in horizontal discharge applications, remove vertical dis- charge duct covers, save screws and install covers over vertical duct openings.

2.Select and size ductwork, supply-air registers and return- air grilles according to ASHRAE (American Society of Heating, Refrigeration and Air-Conditioning Engi- neers) recommendations.

CAUTION: When drilling the duct system fastening holes into the side of the unit for duct ¯anges, be care- ful not to puncture the coil or coil tubes. See Fig. 9.

		MAX			``A''			``B''			``C''
UNIT	WEIGHT
	Lb		Kg	in.		mm	in.		mm	in.		mm
558D036	415		188
558D048	425		193	73.69		1872	35.00		889	33.35		847
558D060	445		202
558D072	520		236

NOTES:

1. Dimension in ( ) is in millimeters.

2.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 skid when rigging to pre- vent rigging straps from damaging unit.

3.Weights do not include economizer. See Table 1 for econo- mizer weights.

CAUTION: All panels must be in place when rigging.

Fig. 6 Ð Rigging Details

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