S&P ERV TRC1600 P1, Инструкция по установке, эксплуатации и обслуживанию

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ERV TRC1600
16 WWW.SOLERPALAU-USA.COM INSTALLATION, OPERATION AND MAINTENANCE MANUAL 1.800.961.7370
OPERATION
START-UP & OPERATION
MOTOR STARTERS
This unit uses IEC-style motor starters to protect the motors against overload.
IEC-style motor starters use Overload Relays to detect excessive current and interrupt the control circuit
that engages the motor’s contactors.
Overload Relays are sized to Full Load Amp (FLA)
rating of the protected motor. The Overload Relays
can be adjusted to trip (interrupt the control circuit)
at a specific setting within a range.
Overload Relays should initially be set at the FLA
rating of the motor (see Unit Rating Label). If
necessary to prevent nuisance tripping at start-up,
the Relays can be adjusted to trip no higher than
115% of the motor’s FLA rating.
For safest operation, the overload relays should also
be used in manual reset mode with trip test capability.
NOTE:
As factory-wired, if one blower motor is
shut down due to overload by its Motor Starter, the
other motor will also be shut down.
NOTE:
Terminals 96 & 97 of the Overload Relays
and terminals 14 & 13 of the Contactors are
normally-open dry contacts that may be used to
signal that the contactors are closed and/or that
the Overload Relays have tripped.
The Overload Relay output contacts 95 & 96 must remain in series with the low-voltage control circuit!
Altering this will create a hazardous situation in which the motor is not protected against overload!
Adhere to applicable local codes when adjusting the dial setting of the overload relays.
DANGER OF INJURY OR DAMAGE.
The motors in this unit must not be run at an amperage that exceeds the motor’s rated full load amps and
overload relays on the motor starters must be set at or below motor full load amps. For safest operation,
the overload relays should also be used in hand reset mode with trip test capability.
It is the installer’s responsibility to measure the operating amperage of each motor. If the full load amp
rating is exceeded, the amp draw must be reduced by substituting a smaller motor pulley or by adjusting
the variable sheave. Continue these adjustments until the actual amperage is no more than the motor’s
faceplate full load amps.
Failure to make this adjustment may result in unsafe motor winding temperatures or tripping of the
supplied motor starter’s overload relay motor protection devices set at full load amps.
The relay must be set for correct FLA rating depending on the motor horsepower. See Unit Rating Label on
motor for HP and FLA specifications.
WARNING
WARNING