AAON LN Series, Установка, эксплуатация и обслуживание

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Figure 8 - Front View of Utility Entry and
Power Switch from Control Compartment
Startup technician must check for proper
motor rotation and check fan motor amperage
listed on the motor nameplate is not
exceeded. Motor overload protection may be
a function of the variable frequency drive and
must not be bypassed.
Note: All units are factory wired for
208/230V, 460V, or 575V. If unit is to be
connected to a 208V supply, the transformer
must be rewired to 208V service. For 208V
service interchange the yellow and red
conductor on the low voltage control
transformer.
Red-Black for 208V
Yellow-Black for 230V
Wire control signals to the unit’s low voltage
terminal block located in the controls
compartment. All wiring beyond this point
has been completed by the manufacturer and
cannot be modified without effecting the
unit’s agency/safety certification.
If any factory installed wiring must be
replaced, use a minimum 221°F (105°C) type
AWM insulated conductors.
Supply voltage must be within the min/max
range shown on the unit nameplate. Available
short circuit current should not exceed the
short circuit current rating (SCCR) shown on
the unit nameplate.
Three phase voltage imbalance will cause
motor overheating and premature failure.
The maximum allowable imbalance is 5%.
Three phase voltage imbalance will
cause
motor overheating and
premature failure.
CAUTION
Scroll compressors are directional
and will be damaged by operation in
the wrong direction. Low pressure
switches on compressors have been
disconnected after factory testing.
Rotation should be checked by a
qualified service technician at startup
using suction and discharge pressure
gauges and any wiring alteration
should only be made at the unit power
connection.
Installing Contractor is responsible for
proper sealing of the electrical and
gas entries into the unit. Failure to seal
the entries may result in damage to
the unit and property.
CAUTION
CAUTION