Emerson PFH020A-L, User Manual

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Site Preparation and Installation
Liebert
®
Mini-Mate2
™
18
5.3 Equipment Inspection (Upon Receipt)
Do not uncrate the equipment until it is close to its final location. All required assemblies are banded
and shipped in corrugated containers. If any damage is discovered when the unit is uncrated, report it
to the shipper immediately. If any concealed damage is later discovered, report it to the shipper and
to Emerson
®
.
5.4 Installing Ceiling Units
The evaporator unit is usually mounted above the ceiling and must be securely mounted to the roof
structure. The ceiling and ceiling supports of existing buildings may require reinforcement.
NOTICE
Risk of improper installation. Can cause water leaks that result in damage to the building,
equipment and furniture below.
The Liebert Mini-Mate2 must be level or condensate will not drain properly and can overflow
the drain pan and leak from the cabinet. Verify that the unit is level before startup.
Follow all national and local building codes.
• Use field-supplied threaded suspension rods and 3/8-16 factory hardware kit.
• Recommended clearance between ceiling grids and building structural members is the unit’s
height plus 3 inches (76mm).
• Install the four field-supplied rods by suspending them from suitable building structural
members. Locate the rods so that they will align with the four mounting holes in the flanges that
are part of the unit base. Securely anchor the top ends of the suspension rods. Make sure all nuts
are tight.
• Using a suitable lifting device that is rated for the weight of the unit (see 5.2 - System Weights ),
raise the Liebert Mini-Mate2 and pass the threaded rods through the four mounting holes in the
flanges that are part of the unit base.
• Attach the threaded rods to the flanges using the supplied nuts and grommets. (See Figure 12 ).
The rubber grommets provide vibration isolation.
• Use the plain nuts to hold unit in place. Adjust these nuts so that the weight of the unit is
supported evenly by the four rods, does not rest on the ceiling grid and to ensure the unit is level.
• Use the shake-proof nuts to jam the plain nuts.
!
WARNING
Risk of ceiling collapse and heavy unit falling. Can cause building damage, serious injury or
death.
Verify that the supporting roof structure is capable of supporting the weight of the unit(s) and
the accessories during installation and service (see 5.2 - System Weights ).