Trane XB 13, Product & Performance Data, Page: 13 / 14

22-1769-07 13
Mechanical
Specification Options
General
The 2TTB3 is designed to operate at
outdoor ambient temperatures as high
as 115°F. Cooling capacities shall be
matched with a wide selection of air
handlers and furnace coils that are
A.H.R.I. certified. The unit shall be certi -
fied to UL Standard 1995. Exterior must
be designed for outdoor application.
Casing
Unit casing is constructed of heavy
gauge, galvanized steel and painted with
a weather-resistant powder paint. Corro -
sion and weatherproof CMBP-G30 base.
Refrigerant Controls
Refrigeration system controls include
condenser fan and compressor contac -
tor. High and low pressure controls are
inherent to the compressor. Another
standard feature is the liquid line dryer.
Compressor
The compressor features internal over
temperature and pressure protector,
total dipped hermetic motor and thermo -
statically controlled sump heater. Other
features include: centrifugal oil pump,
and low vibration and noise.
Condenser Coil
The Spine Fin™ coil shall be continuous -
ly wrapped, corrosion resistant all alu -
minum with minimum brazed joints. This
coil is 3/8 inch O.D. seamless aluminum
glued to a continuous aluminum fin.
Coils are lab tested to withstand 2,000
pounds of pressure per square inch. The
outdoor coil provides low airflow resis -
tance and efficient heat transfer. The coil
is protected on all four sides by louvered
panels.
Low Ambient Cooling
As manufactured, this unit has a cool -
ing capability to 55°F. The addition of
an evaporator defrost control permits
operation to 40°F. The addition of an
evaporator defrost control with TXV per -
mits low ambient cooling to 30°F.
Accessories
Thermostats —
Heating/Cooling
(manual and automatic change over).
Sub-base to match thermo stat and lock -
ing thermostat cover.
Evaporator Defrost Control —
See
Low Ambient Cooling.
Outdoor Thermostat —
Supplemen -
tal heat outdoor ambient lockout from
46 to –10°F.