4
Step 4 — Rig and Place Unit — Inspect unit for trans-
portation damage. File any claim with transportation agency.
Keep unit upright and do not drop. Spreader bars are not re-
quired if top crating is left on unit. Rollers may be used to
move unit across a roof. Level by using unit frame as a refer-
ence. See Table 1 for additional information. Operating weight
is shown in Table 1 and Fig. 6.
Lifting holes are provided in base rails as shown in Fig. 6
and 7. Refer to rigging instructions on unit.
POSITIONING — Maintain clearance around and above unit
to provide proper airflow and service access. See Fig. 7.
Position unit on roof curb so that the following clearances
are maintained:
1
/
4
-in. clearance between the roof curb and the
base rail inside the front and rear, 0.0 clearance between the
roof curb and the base rail inside on the duct end of the unit.
This will result in the distance between the roof curb and the
base rail inside on the condenser end of the unit being approxi-
mately equal to Fig. 2, section C-C.
Do not install unit in an indoor location. Do not locate unit
air inlet near exhaust vents or other sources of contaminated
air.
Although unit is weatherproof, guard against water from
higher level runoff and overhangs.
After unit is in position, remove polyethylene shipping
wrapper and rigging skid.
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 prevent rigging straps from damaging unit.
3. Unit weights do not include economizer. See Table 1 for economizer weights.
4. Weights include base unit without the Humidi-MiZer™ adaptive dehumidifica-
tion system. See Table 1 for unit operating weights with the Humidi-MiZer
system.
All panels must be in place when rigging.
Fig. 6 — Rigging Details
50HJ
OPERATING
WEIGHT
ABC
lb kg in. mm in. mm in. mm
008 755 343 77.42 1967 41.5 1054 42.12 1070
009 895 406 77.42 1967 41.5 1054 50.12 1273
012 915 415 77.42 1967 41.5 1054 50.12 1273
014 930 422 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 dif-
ference. A 4-in. trap is recommended.
Fig. 5 — Condensate Drain Piping Details
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