Filter
Top Products
Application
Considerations
PKG-PRC002-EN 11
Remote Air-Cooled Condenser
Unit Location
Unobstructed condenser airflow is
essential to maintaining capacity and
operating efficiency. When determining
unit placement, give careful
consideration to assure sufficient airflow
across the condenser coils. Avoid these
two detrimental conditions: warm air
recirculation and coil starvation.
Both warm air recirculation and coil
starvation cause reductions in unit
efficiency and capacity because of the
higher head pressure associated with
them. In more severe cases, nuisance
unit shutdowns will result from excessive
head pressures.
Clearance
Ensure vertical condenser air discharge
is unobstructed. While it is difficult to
predict the degree of warm air
recirculation, a unit installed with a ceiling
or other obstruction above it will
experience a capacity reduction that will
reduce the maximum ambient operation
limit. Nuisance high head pressure
tripouts may also occur.
The coil inlet must also be unobstructed.
A unit installed closer than the minimum
recommended distance to a wall or other
vertical riser will experience a
combination of coil starvation and warm
air recirculation. This may result in unit
capacity and efficiency reductions, as
well as possible excessive head
pressures. Reference the service
clearance section on page 93 for
recommended lateral distances.
Ambient Limitations
Standard ambient control allows
operation down to 45 F (7.2 C) with
cycling of condenser fans. Units with the
low ambient option are capable of
starting and operating in ambient
temperatures down to 0 F (-17.8 C).
Optional low ambient units use a
condenser fan damper arrangement that
controls condenser capacity by
modulating damper airflow in response
to saturated condenser temperature.
Maximum ambient temperature
operation of a standard condenser is 115
F (46.1 C). Operation at design ambient
above 115 F can result in excessive head
pressures. For applications above 115 F,
contact the local Trane sales office.
Air Cooled
Condenser