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September 1, 1997
REMOTE CONDENSERS
General Description
The Scroll Plus Fibertronic system is available for
use with three types of condensers: remote air
cooled, water cooled, and evaporative water
cooled. Refer to specific manufacturer's instruc-
tions for the installation of these components. See
the store legend for manufacturer and model num-
ber.
Remote Air Cooled Condensers
When air cooled condensers are used, generally
there will be individual condensers for each rack.
Split condenser valving is an option to reduce the
refrigerant charge. During certain conditions, the
valving will automatically valve off one-half of
the condenser to minimize the refrigerant charge.
The valving may be field or factory installed.
Water Cooled Condensers
When water cooled condensers are used, they
generally will be shell and tube construction. The
water cooled condensers may be factory or field
installed.
Evaporative Water Coolers for Condensers
Evaporative water cooled condensers are shipped
directly to the job site by the manufacturer.
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Air Cooled Application
Split condenser valving is recommended if any of
the following conditions exist:
1. The difference between summer and winter dry
bulb temperatures is greater than 90
2. The local climate conditions are anticipated to
be more severe than those stated in the
ASHRAE charts.
3. The heat reclaim coil is sized for more than
50% of the heat of rejection for the unit.
4. The condenser liquid return line is longer than
100 feet.
5. The system is equipped for low head
pressure operation that seeks to obtain a maxi-
mum of subcooling.
Shutoff Valves
These valves are field supplied and should be
installed in such a manner as to isolate the entire
condenser.
Maximum Allowable Distances
Remote Satellites should not be placed below the
level of the Scroll Plus Rack. The Satellite may be
positioned above the Rack. The maximum allow-
able elevation is 6 feet from the bottom of the
Satellite to the bottom of the Rack.
When piping from the Rack to a Remote Satellite,
the maximum allowable piping equivalent is
50 feet.
When piping from the Rack to a Remote Header,
the maximum allowable piping equivalent is
50 feet.
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
P/N 401789
5 - 3
F.
O
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