York HA090 Technical Manual page 115

036-21328-003-D-0206
FEATURES (Continued)
Optional factory installed service valves.
Optional skid for fork truck handling (requires 96" length
forks).
A filter-drier is shipped in the unit s control box for field
installation in the liquid line near the evaporator coil. Two
are provided on all 30, 40 and 50 ton models.
Copper stub-outs are factory mounted on the suction
and liquid lines to simplify the field piping connections.
These stubs are provided on units equipped with or with-
out service valves.
Multiple controls to provide stable system operation at
ambient temperatures down to 40 F with kits available
for operation to 0 F.
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Capacity staging for more economical operation and
more even temperature levels within the conditioned
space.
A lockout circuit to prevent the unit from cycling on safety
control.
Pump-out on unit startup to prevent liquid refrigerant
returning to the compressor is standard on 25 through 50
ton models.
I nherently protected condenser fan motors.
V-Coil Design with exterior service port connections.
Five-minute anti-short cycle timer and minimum com-
pressor run time.
Factory installed disconnect and Technicoat coils option.
Self contained high and low pressure controls.
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