Before Start-Up; Start-Up And Operation - Powerex SE Serie Mode D'emploi

10HP - 20HP Scroll Enclosure Air Compressors
OPERATION
BEFORE START UP
1. Make sure all safety warnings, labels and instructions have
been read and understood before continuing.
2. Remove any shipping materials, brackets, etc.
3. Confirm that the electric power source and ground have
been firmly connected.
4. Check the belts for tightness.
5. Be sure all pressure connections are tight.
6. Check to be certain all safety relief valves etc., are the
proper size.
7. Securely mount all panels and guards.
8. Check that all fuses, circuit breakers etc., are the proper
size.
9. Make sure the inlet filter is properly installed.
10. Secure the area in front of the compressor to prevent
unauthorized access during this check. Remove the front
access panel so that the motor pulley on each set is visible.
Turn power on the unit and exercising extreme caution, use
the HMI display/input screen to jog each motor. (To reach the
JOG function, select SYSTEM STATUS from the MAIN
screen, then select PUMP INFORMATION for each installed
pump/motor set) Correct rotation is CW looking at the pulley
from the motor side. All motors should rotate in the same
direction. If all or any of the motors rotate incorrectly, lock
out the power, correct the input wiring and recheck. Restore
the front access panel before operating the unit.
INITIAL START UP AND SET UP OF THE CONTROL
The control is programmed at the factory and default settings
are installed. To access certain control functions you will
need to enter a seven digit authorization code. You may select
your own code. We recommend using the last seven digits of
the unit serial number.
To enter the code, from the SYSTEM STATUS screen touch
SELECT SETPOINT.
Go to PG 2 of the SELECT SETPOINT screen.
The second page of the SETUP screen will appear.
Pg 8
Check motor rotation before
operating the unit.
Touch the rectangle to enter the Authorization Code and enter
seven digits using the keypad that appears. Powerex suggests
using the last seven digits of the serial number.

START-UP AND OPERATION

1. Follow all the procedures under "Before start-up" before
attempting operation of the compressor.
2. Switch on the electric source.
3.Verify the display screen is lit.
4. If an isolation valve is installed between the compressor
unit and the air receiver, make sure it is open. Close the
isolation valve between the air receiver and the facility
piping.
5. Pushing the ON button below the touch screen will allow
unit to start and operate automatically. Pushing the OFF but-
ton will stop the motors, but the HMI screen will remain ac-
tive.
6. If the pressure does not rise, turn the unit off, the unit is
running backwards. Have a qualified electrician switch the
breaker OFF and exchange two out of the three phases of
electrical source. If pressure is rising, allow the compressor
unit to run. Each compressor motor will automatically turn
off as the pressure rises and the maximum operating pressure
is reached. Pressure settings may be adjusted as described
below.
7. Open the isolation valve between the air receiver and the
facility piping. The compressor will start and stop each pump
as needed to maintain the pressure between the high and low
set points.
8. After a few hours and again after a few days, check the
display screen to see if the ALARM screen has appeared. If a
HIGH TEMPERATURE or MOTOR OVERLOAD condition
occurs, the alarm screen will appear and the affected
pump-motor will be taken out of service. If the chosen
settings are causing the motors to start too frequently, the
ALARM screen will appear and the MOTOR WARNING
indicator will illuminate. Motor warning will not take the
motor out of service, but the user should take action to
prevent motor overload and damage. To reduce motor starting
frequency, adjust the set points to a wider range between
High and Low and possibly increase the differential. If
starting is still too frequent, a larger or additional air receiver
will be needed.