Mechanical Specification Options
General
The 4TWB4 is fully charged from the factory for up to 15 feet of piping. This unit is designed to operate at outdoor ambient temperatures as high as 115°F. Cooling capacities are matched with
a wide selection of air handlers and furnace coils that are AHRI certified. The unit is certified to UL 1995. Exterior is designed for outdoor application.
Casing
Unit casing is constructed of heavy gauge, G90 galvanized steel and painted with a
on all louvers, panels, prepaint on all other panels. Corrosion and weather- proof
Refrigerant Controls
Refrigeration system controls include condenser fan and compressor contac- tor. High and low pressure controls are inherent to the compressor. A factory installed liquid line drier is standard.
Compressor
The Climatuff® compressor features internal over temperature and pressure protection and total dipped hermetic motor. Other features include: centrifugal oil pump and low vibration and noise.
Condenser Coil
The outdoor coil provides low airflow resistance 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 with TXV permits low ambient cooling to 20° F.
Accessories
Thermostats — Cooling only and heat/ cooling (manual and automatic change- over).
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Trane | Trane has a policy of continuous product and product data improvement and it reserves the right to change |
www.trane.com | design and specifications without notice. |