Specifications
18
4.0 INSTALLATION OF REMOTE HEAT EXCHANGER
Air cooled condensers and fl uid coolers have individual Selection Guide/Operation and Maintenance
manuals which should be referred to for more complete details.
4.1 Rigging
Secondary heat exchangers matched with evaporators of this size are typically remote, outdoor
type. The heat exchanger should be moved to its (typically rooftop) mounting location using a crane
or fork lift. Each fan section has heavy, steel leg supports with lifting holes at the top.
Do not lift with a choke sling around the unit. Spreader bars are recommended for lifting multiple
fan units. Under no circumstances should the coil headers or piping be used for lifting the unit.
Ideally, the unit should be kept in its shipping crate until it is ready to be set in place.
4.2 Leg Assembly
The legs must be unbolted from their collapsed shipping position and extended prior to placing
the unit on its pad. Each leg extends down approximately 18” and reattaches using the same bolts.
Note: Failure to extend the legs will result in poor air distribution over the cooling coil resulting in
signifi cant capacity reduction.
NOTE:
Failure to extend the legs will result in poor air distribution over the cooling coil resulting
in signifi cant capacity reduction. DAMAGE CAUSED TO THE COMPRESSOR(S) DUE TO
OVERHEATING IS NOT COVERED BY DATA AIRE’S WARRANTY.
Concrete pads are often used to provide support for the heat exchanger. Bolt holes in the bottom
of each leg can be used to anchor the unit.
4.3 Locating the Remote Heat Exchanger
The remote heat exchanger must be located in an area that
will ensure free air fl ow into and out of the heat exchanger plus
adequate service access clearance. Short circuiting of the air
fl ow or the intake of warmer air from another unit will seriously
degrade the performance of the air cooled heat exchanger.
Do not locate the heat exchanger in a location that is
bordered by tall obstructions (i.e. higher than 10 feet) on no
more than two sides. See fi gure at right for minimum clearance
from obstructions and between units. With proper clearance on
all sides, two units can be placed at least 48 inches apart.