INSPECTION
Prior to initial use, and at monthly intervals, all rigging brackets
and straps should be visually inspected for any damage, evidence
of wear, structural deformation, or cracks. Particular attention
should be paid to excessive wear at hoist hooking points and load support areas. Brackets or straps showing any kind of wear in these areas must not be used and should be discarded.
ELECTRICALSHOCKHAZARD
Failure to follow this warning could result in personal iniury or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Turn off accessory heater power switch if
applicable. Tag disconnect switch with a suitable warning label.
UNIT FALLING HAZARD
Failure to follow this warning could result in personal iniury or death.
Never stand beneath rigged units or lift over people.
INTRODUCTION
The lifting/rigging bracket is engineered and designed to be installed only on Small Packaged Products.
This bracket is to be used to rig/lift a Small Packaged Product onto roofs or other elevated structures.
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal
iniury/death or property damage.
Rigging brackets for one unit use only. When removing a unit at the end of its useful life, use a new set of brackets.
USE OF RIGGING BRACKET
Field Installation of Ri_in_ Bracket
1.If applicable, remove unit from shipping carton. 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.Remove 4 screws in unit corner posts.
3.Attach each of the 4 metal rigging brackets under the panel
rain lip (See Fig. 7). Use the screws removed in step 2 above to secure the brackets to the unit.
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal
iniury/death or property damage.
Rigging bracket MUST be under the rain lip to provide adequate lifting.
PROPERTY DAMAGE HAZARD
Failure to follow this warning could result in personal
iniury/death or property damage.
Do not strip screws when
stripped, replace the stripped one with a larger diameter screw (included).
Riu_inu/Liftinu of Unit
1.Bend top of brackets down approximately 30 degrees from the corner posts.
2.Attach straps of equal length to the rigging brackets at opposite ends of the unit. Be sure straps 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.
4.After unit is securely in place detach rigging straps. Remove
corner posts, screws, and rigging brackets then reinstall screws.
UNIT FALLING HAZARD
Failure to follow this warning could result in personal
iniury/death or property damage.
When straps are taut, the clevis should be a minimum of 36 in. (914 mm) above the unit top cover.
After the unit is placed on the roof curb or mounting pad, remove the top crating.
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,
according to ASHRAE (American Society of Heating,
Refrigeration, and Air Conditioning Engineers) recommendations.
The unit has duct flanges on the supply- and
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal iniury 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. Units with electric heaters require 90 degree elbow in supply duct.
When designing and installing ductwork, consider the following:
1. All units should have
filter rack installed in the
Recommended sizes for filters are shown in Table 1.
2. Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
