
PRODUCT DESIGN
4
TheGSC13SEERmodels are shipped with a nitrogen hold-
ingcharge only andareavailablein11/2 through 5tonsizes.
Theyaredesignedfor208/230 voltsinglephase applications.
SelectGSC3phasemodelsareavailablein208-230V3phase
and460v 3 phase.
The condenser air is pulled through the condenser coil by a
direct drive propeller fan. This condenser air is then dis-
charged out of the top of the cabinet.
These units are designed for free air discharge, so no addi-
tional resistance like duct work shall be attached.
The suction and liquid line connections on present models
areof the sweat type for field pipingwithrefrigeranttypecop-
per. Back seating valves are factory installed to accept the
fieldruncopper.
Systems should be properly sized by heat gain and loss
calculations made according to methods of the Air Condi-
tioning Contractors Association (ACCA) or equivalent. It is
the contractors responsibility to ensure the system has ad-
equate capacity to heat or cool the conditioned space.
Some GSC condensing units use a mix of Copeland Recip-
rocating®and Copeland Compliant®Scroll compressors.
Thereareanumberof designcharacteristicswhichare differ-
ent from the scroll compared to the traditional reciprocating
compressor.
Due to their design Scroll compressors are inherently more
tolerantof liquid refrigerant.
NOTE: Eventhough thecompressorsectionofa Scrollcom-
pressorismoretolerantofliquidrefrigerant,continuedflood-
backor flooded start conditionsmay wash oil fromthe bear-
ingsurfacescausing premature bearing failure.
CopelandCompliant®Scroll compressors usewhiteoilwhich
iscompatiblewith3GS. 3GSoilmaybeused if additional oil
isrequired.
The GSC condensers use new generation scroll compres-
sors. The scroll compressors have an internal equalization
mechanismand an anti-counter rotation device which allow
the scrolls to equalize in approximately ½ second at shut
down.
Operating pressures, amp draws and minimum circuit am-
pacity may differ from standard reciprocating compressors.
This information may be found in the "Cooling Performance
Data" section and should be reviewed prior to installation of
thecondenser.
OK!
OK!
AA AAA
A
CC
CCOK!
OK!
OK!
OK!
NOT
RECOMMENDED
AA
AA AA
AA
AA
B B B
B
Model Type A B C AA
Residential 10" 10" 18" 20"
Light Commercial 12" 12" 18" 24"
Minimum Airflow Clearances
Special consideration must be given to location of the con-
densing unit(s) in regard to structures, obstructions, other
units, and any/all other factors that may interfere with air
circulation. Where possible, the top of the unit should be
completely unobstructed; however, if vertical conditions re-
quire placement beneath an obstruction there should be a
minimum of 60 inches between the top of the unit and
theobstruction(s). The specified dimensionsmeetrequire-
mentsforair circulation only. Consultallappropriate regula-
torycodes prior to determiningfinal clearances.
Another important consideration in selecting a location for
the unit(s) is the angle to obstructions. Either side adjacent
the valves can be placed toward the structure provided the
sideawayfromthestructuremaintainsminimumserviceclear-
ance. Cornerinstallations are strongly discouraged.
DO NOT locate the unit:
– Directlyundera vent termination fora gas appliance.
– Within 3 feet of a clothes dryer vent.
– Where the refreezing of defrost water would create a
hazard.
– Where water may rise into the unit.