![ACCESS PANELS MUST BE IN PLACE WHEN RIGGING.](/images/new-backgrounds/33408/3340817x1.webp)
CAUTION - NOTICE TO RIGGERS
PRUDENCE - AVIS AUX MANIPULATEUR
ACCESS PANELS MUST BE IN PLACE WHEN RIGGING.
PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION.
Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition
DUCTS
MINIMUM HEIGHT: 36" (914.4 mm)
HAUTEUR MINIMUM
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| BANDE SCELLANT DOIT ÊTRE |
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| SEAL STRIP MUST BE IN | ||
UNIT HEIGHT | PLACE BEFORE PLACING | EN PLACE AVANT DE PLACER | ||
HAUTEUR D'UNITÉ | UNIT ON ROOF CURB | L'UNITÉ SUR LA BASE DE TOIT | ||
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| DETAIL A |
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SEE DETAIL A | VOIR DÉTAIL A |
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VOIR DÉTAIL A |
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| 50CY502286 2.0 |
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| A09079 | |
CABINET | MODEL | RIGGING WEIGHT | |||
lb | kg | ||||
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Small | 577D | A24 | 426 | 193 | |
Small | 577D | A30 | 433 | 196 | |
| 577D | A36 | 522 | 237 | |
Large | 577D | A42 | 544 | 247 | |
577D | A48 | 558 | 253 | ||
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| 577D | A60 | 609 | 276 |
NOTE: See dimensional drawing for corner weight distribution.
Fig. 7 - Suggested Rigging
Rigging/Lifting of Unit (See Fig. 7)
!WARNING
UNIT FALLING HAZARD
Failure to follow this warning could result in personal injury or death.
Large base units must be secured to common curb before allowing full weight of unit to rest on curb. Install screws through curb into unit base rails while rigging crane is still supporting unit.
Lifting holes are provided in base rails as shown in Fig. 5 and 6.
1.Leave top shipping skid on the unit for use as a spreader bar to prevent the rigging straps from damaging the unit. If the skid is not available, use a spreader bar of sufficient length to protect the unit from damage.
2.Attach shackles, clevis pins, and straps to the base rails of the unit. Be sure materials are rated to hold the weight of the unit (See Fig. 7).
3.Attach a clevis of sufficient strength in the middle of the straps. Adjust the clevis location to ensure unit is lifted level with the ground.
After the unit is placed on the roof curb or mounting pad, remove the top skid.
Select and Install Ductwork
The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of
Select and size ductwork,
The unit has duct flanges on the supply- and
!WARNING
PERSONAL INJURY HAZARD
Failure to follow this warning could result in personal injury or death.
For vertical supply and return units, tools or parts could drop into ductwork, therefore, install a 90 degree turn in the return ductwork between the unit and the conditioned space. If a 90 degree elbow cannot be installed, then a grille of sufficient strength and density should be installed to prevent objects from falling into the conditioned space.
When designing and installing ductwork, consider the following:
1.All units should have
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