ECP300 EXPERT
Page 20
USE AND MAINTENANCE MANUAL
Rel. 01-21
COMPRESSOR MOTOR CIRCUIT BREAKER CALIBRATION
Below we show step by step how to correctly calibrate motor circuit breaker dedicated to
the compressor.
Fig.15:
When the system is started for first
time it’s suggested to calibrate the
motor circuit breaker on the
compressor power circuits. Using
an ammeter verify the effective
absorption.
Fig.16:
Make the motor circuit breaker
calibration
basing
on
the
measured absorption. Anyway, the
set-up value must not be higher
than the one expected by the
compressor manufacturer.
Caution:
incorrect calibration may
cause
compressor
failure
or
unwanted action of the motor
protection switch.
Fig.17:
To carry out the calibration, use
the adjustment screw on the
front of the motor protection
switch.
CHAP. 3 - Installation
3.6