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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 gravity. Use wooden top skid when rigging to prevent rigging
straps from damaging unit.
4. Unit weights do not include economizer. See Table 1 for econo-
mizer 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 dehumidification system.
CAUTION: All panels must be in place when rigging.
Fig. 6 — Rigging Details
551B
OPERATING
WEIGHT
ABC
lb kg in. mm in. mm in. mm
090 755 343 77.42 1967 41.5 1054 42.12 1070
102 895 406 77.42 1967 41.5 1054 50.12 1273
120 915 415 77.42 1967 41.5 1054 50.12 1273
150 930 422 77.42 1967 41.5 1054 50.12 1273
MAXIMUM ALLOWABLE DIFFERENCE
(in.)
A-B B-C A-C
0.5 1.0 1.0
Fig. 3 — Unit Leveling Tolerances
DRAIN PLUGHORIZONTAL
DRAIN OUTLET
NOTE: Drain plug is shown in factory-installed position.
Fig. 4 — Condensate Drain Location
NOTE:
Trap should be deep enough to offset maximum unit static differ-
ence. A 4-in. trap is recommended.
Fig. 5 — Condensate Drain Piping Details