MAXIMUM ALLOWABLE DIFFERENCE (in.)
0.5 | 1.0 | 1.0 |
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Fig. 5 Ð Unit Leveling Tolerances
IV. FIELD CONNECTIONS
A. External Trap Condensate Drain
The unit's
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
All units must have an external trap for condensate drain- age. Install a trap at least
B. Field Duct Connections
NOTE: The design and installation of the duct system must be in accordance with NFPA standards for the installation of
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,
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.
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UNIT | WEIGHT |
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| Lb |
| Kg | in. |
| mm | in. |
| mm | in. |
| mm |
558D036 | 415 |
| 188 |
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558D048 | 425 |
| 193 | 73.69 |
| 1872 | 35.00 |
| 889 | 33.35 |
| 847 |
558D060 | 445 |
| 202 |
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558D072 | 520 |
| 236 |
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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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