19
4.0 INSTALLATION OF REMOTE OUTDOOR HEAT EXCHANGER
Air cooled condenser and fl uid coolers have individual Installation, Operation and Mainte-
nance manuals which should be referred to for more complete details
4.1 Rigging
The following covers outdoor condensers, condensing units and fl uid coolers. Outdoor heat ex-
changers should be moved to their mounting location using a crane or fork lift as applicable. Each
fan section has 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. The
unit should be kept in its shipping crate until it is ready to be set in place.
4.2 Leg Assembly
The legs of the remote heat exchanger are shipped with the unit in the “collapsed” position and need
to be lowered during the rigging process. The legs must be unbolted from their collapsed position
and extended prior to placing the units on its pad. Each leg extends down 18 inches and should be
reattached using the same bolts. The bolts are placed through the lower set of holes on the bracket.
Multiple fan units have leg supports between each section.
Concrete pads or a rail system 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.
DARC-03 and DARC-05 units do not have legs and are ready for installation.
WARNING: Failure to extend the legs will result in poor air distribution over the cooling coil
resulting in signifi cant capacity reduction and potential high discharge pressure problems.
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.
To Next Page
Loading...
