Application Considerations - Trane Precedent YSC060-120 User Manual

RT-PRC017-EN
Application
Considerations
Application of this product should be
within the cataloged airflow and cooling
considerations.
Low Ambient Cooling
The Precedent ™ line features, as
standard, low ambient cooling down to
-18°C (0°F). Contact your local Trane
Representative for more assistance with
low ambient cooling applications.
Barometric Relief
This product offers an optional
barometric relief damper for use in
conjunction with economizer option.
This option consists of gravity dampers
which open with increased pressure. As
the building air pressure increases, the
pressure in the unit return air section
also increases, opening the dampers and
relieving the conditioned space.
NOTE: THE EFFECTIVENESS OF
BAROMETRIC RELIEF DAMPER DURING
ECONOMIZING OPERATION IS SYSTEM
RELATED. PRESSURE DROP OF THE
RETURN AIR SYSTEM SHOULD BE
CONSIDERED TO CONTROL BUILDING
PRESSURIZATION.
Heating Operation
The heat exchanger is manufactured
with aluminized steel. To prevent
condensation within the heat exchanger,
do not exceed 50% outside air.
Condensate Trap
The evaporator is a draw-thru
configuration. A trap must be field
provided prior to start-up on the cooling
cycle.
Clearance Requirements
The recommended clearances identified
with unit dimensions should be
maintained to assure adequate service,
maximum capacity and peak operating
efficiency. Actual clearances which
appear inadequate should be reviewed
with the local Trane sales personnel.
Unit Pitch
These units have reversible sloped
condensate drain pans. Units must be
installed level; any unit slope must be
toward side of unit where condensate
drain is connected.
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