User manual

Installation
Liebert
®
InteleCool
™
26
2.0 INSTALLATION
2.1 Preparation
2.1.1 Room Preparation
The room should be well-insulated and sealed to reduce airborne contaminants from penetrating the
site. Outside air may be introduced through the damper option or be used for economized cooling by
using the Economizer option. However, uncontrolled outside air should be kept to a minimum.
Outside air adds to the cooling, heating and filtration loads of the site. Doors should be properly
sealed to minimize leaks and should not contain grilles.
2.1.2 Location Considerations
The Liebert InteleCool2 unit is field-mounted on an outside wall. Additional framing in the wall may
be required to ensure adequate structural support.
The outdoor area near the condenser supply and discharge must also be considered. To ensure
adequate air supply, the unit should be mounted in a clean area, away from loose dirt and foreign
matter that may clog the condenser coil. The unit should not be located near steam, hot air or fume
exhausts. Also, the unit should not be mounted closer than 12 feet (3.7 m) from an opposing wall,
obstruction or unit. For service clearance, provide 36" (914mm) in front of the unit, and 30" (762mm)
on each side. When mounting units side-by-side, provide a minimum of 36" (914mm) between adjacent
units unless the adjacent units will not be run at the same time. In this case, the units may be placed
as close as 18" (457mm) apart. However, this will make the units more difficult to service. In such
situations, consider the compressor location option for improved serviceability. Before mounting units,
check local codes for applicable clearances.
2.1.3 Equipment Inspection
Upon delivery of the unit, inspect all items for visible damage. Concealed damage may be discovered
later during installation. Report any damage to the shipper immediately and file a damage claim.
Also, forward a copy of the damage claim to your Emerson
®
supplier.
2.2 Unit Installation
The Liebert InteleCool2 is designed to be installed against, and through, an outside wall. Two
openings in the wall are required for the evaporator supply and return. Provide 1/2" (12.7mm)
clearance on wall openings for supply and return air. Install the unit in a level position to ensure
proper refrigerant flow, oil return and condensate drain. To install the unit, follow the instructions
below.
1. Verify that the mounting wall is structurally adequate to support the weight of the unit during
start, stop and operation cycles. Emerson recommends that the installer have a professional
structural engineer evaluate the wall strength and determine the correct fastener type and size.
See Tables 6-13 for static unit weights. Note that some vibration will occur during start, stop and
operation cycles. The wall may need to be reinforced to support the maximum load of the unit.
2. Using a chalk line, mark the outside wall with a level horizontal line where the bottom of the unit
is to rest.
3. Prepare supply and return openings in an outside wall, measuring from the chalk line.
4. Prepare the wall mounting holes. The mounting holes may be pilot holes for lag screws or
clearance holes for bolts that will extend through the wall as determined by the structural
engineer. Refer to Figure 1 for the location of these holes.
5. Fasten the unit mounting base angle to the outside wall with the mounting fasteners as
specified
by the structural engineer.
!
WARNING
Risk of inadequate wall strength or improper unit mounting. Can cause wall collapse or unit
to fall off the wall resulting in building and equipment damage, serious injury or death.
Installer must verify that the wall and the mounting fasteners are structurally adequate to
support the weight of the unit during all phases of operation.