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CG-PRC007-EN10
Application
Considerations
c
Provide Lateral Clearance
The condenser coil inlet must not be
obstructed. A unit installed closer than
the minimum recommended distance to
a wall or other vertical riser may
experience a combination of coil
starvation and warm air recirculation,
resulting in unit capacity and efficiency
reductions and possible excessive head
pressures.
The recommended lateral clearances are
depicted in the dimensional data section.
These are estimates and should be
reviewed with the local Trane sales
engineer at the jobsite.
b
Provide Vertical Clearance
Vertical condenser air discharge must be
unobstructed. While it is difficult to
predict the degree of warm air
recirculation, a unit installed as shown
below would have its capacity and
efficiency significantly reduced —
possibly to the degree of nuisance high
head pressure trip outs. Performance
data is based on free air discharge.
d
Provide Sufficient Unit-to-Unit Clearance
Units should be separated from each
other by sufficient distance to prevent
warm air recirculation or coil starvation.
Doubling the recommended single unit
air-cooled chiller clearances will
generally prove to be adequate.
e
Walled Enclosure Installations
When the unit is placed in an enclosure
or small depression, the top of the fans
should be no lower than the top of the
enclosure or depression. If they are,
consideration should be given to ducting
the top of the unit. Ducting individual
fans, however, is not recommended.
Such applications should always be
reviewed with the local Trane sales
engineer.
VOLTAGE
Nominal voltage is the nameplate rating
voltage. The actual range of line voltages
at which the equipment can satisfactorily
operate are given below.
WATER TREATMENT
Dirt, scale, products of corrosion, and
other foreign material in the water will
adversely affect heat transfer between
the water and system components.
Foreign matter in the chilled water
system can also increase pressure drop
and, consequently, reduce waterflow.
Proper water treatment must be
determined locally and depends on the
type of system and local water
characteristics.
Do not use salt or brackish water in Trane
chillers. Use of either will lead to a
shortened life. Trane encourages the
employment of a reputable water
treatment specialist, familiar with local
water conditions, to assist in the
establishment of a proper water
treatment program.
The capacities given in the “Performance
Data” section of this catalog are based
on water with a fouling factor of 0.0001
(in accordance with ARI 550/590-98). For
capacities at other fouling factors, see
“Performance Adjustment Factors”
section of this catalog.
EFFECT OF ALTITUDE ON
CAPACITY
Chiller capacities given in the
“Performance Data” section are based
upon application at sea level. At
elevations substantially above sea level,
the decreased air density will decrease
condenser capacity and, therefore, unit
capacity and efficiency. The adjustment
factors in the “Performance Adjustment
Factors” section of this catalog can be
applied directly to the performance data
to determine the unit’s adjusted
performance.
Voltage
Rated Utilization
Voltage Range
200 180-220
208-230 187-253
230 208-254
380 342-418
400 360-440
415 374-456
460 414-508
575 520-635