Trane TWE050A-TWE200B Heat Pump User Manual


 
76 SS-PRC003-EN
Mechanical
Specifications Condensing Units
Controls
Condensing units shall be completely
factory wired with necessary controls
and contactor pressure lugs or
terminal block for power wiring.
Control wiring shall be 24-volt control
circuit which includes fusing and
control transformer. Units shall provide
external location for mounting a fused
disconnect device. Time delay timers to
prevent compressors in dual
compressor units from simultaneous
start-up and anti- recycle timers are
available as optional accessories.
Low Ambient Operation
Standard units shall start and operate
to approximately 35°F (1.7°C) when
matched with Trane air handlers and
coils. Optional head pressure control
accessory permits operation to 0°F (-
17.8°C).
Accessories
Low Ambient Head Pressure Control
This accessory shall modulate the
RPM of unit outdoor fan motor in
response to outdoor ambient
temperature and unit head pressure.
Accessory provides unit cooling
operation to outdoor temperatures of
0° F (-17.8° C).
Vibration Isolation Packages This
accessory shall reduce transmission of
noise and vibration to building
structures, equipment, and adjacent
spaces. Packages shall be available in
either neoprene-in-shear or spring-flex
types.
Hot Gas Bypass Kit This accessory
shall be available to provide capacity
modulation.
Time Delay Relay This accessory
shall prevent compressors in dual
compressor unit from combine on line
simultaneously. Time shall be 24-volt,
60 cycle, with four minute timing
period.
Anti-Short-Cycle Timer This
accessory shall prevent rapid on-off
compressor cycling in light load
conditions by not allowing compressor
to operate for 5-7 minutes upon
shutdown. This accessory shall consist
of a 24-volt, solid state timing device
with either 5 or 7 minute fixed-off
timing period.
Condenser Coil Guard Metal grille
with PVC coating shall be provided to
alleviate coil damage.
Factory Installed Accessories
Black Epoxy Coated Condenser Coil
This option is designed to provide
corrosion protection of air cooled
condenser coils for seacoast
application. The black epoxy coil
protection is a factory applied
thermoset vinyl coating, bonded to
normal aluminum fin stock. The
uniform thickness of the bonded vinyl
layer exhibits excellent corrosion
protection in salt spray tests performed
in accordance with ASTM B177.