22
C6.1.11/0718-0619/E
2.9.11 How to check the operating values of the frequency inverter M200
1)
Enter the "Service" menu
2)
Use the
UP
and
DOWN
keys to select the "M200 status" sub-menu
3)
Press
ENTER
2.9.12 Controller setting
IMPORTANT
Never adjust the suction pressure to a value that is outside of the envelope
approved by Emerson.
To change the suction pressure:
1)
Press the
PARAM
key to access the programming menu
2)
Use the
UP
and
DOWN
keys to select the
Pr1
menu
3)
Press
Pr1
to enter this menu
4)
Select setpoint (
SETC1
)
5)
Use the
UP
and
DOWN
keys to adjust
SETC1
to the desired suction pressure
NOTE: No change to the iPro HPV (gas cooler high-pressure valve) setting is required before
starting the unit.
2.9.13 Manual compressor run
IMPORTANT
Manual compressor runs are intended for maintenance purposes only!
Only qualified personnel and certified companies are allowed to perform a
manual compressor run as it can force the compressor to operate outside of
the approved envelope. In any case special care shall be taken when
performing one. In particular, never run the compressor for more than
2 minutes.
During a manual compressor run, all the safety features remain active: the controller run signal is
bypassed. Besides, during manual operation the HPV and BGV valves are closed, unless this was
manually overwritten.
To manually run the compressor, check first that the
SB2
switch is switched to "I" then switch on the
SB1
switch. The compressor will immediately start at minimal speed.
Figure 29: Manual compressor operation
SB2
SB1
Summary of Contents for Copeland EazyCool OME-4MTL-09X
Page 1: ...Copeland Eazycool CO2 Refrigeration Units Application Guidelines ...
Page 5: ......
Page 68: ...C6 1 11 0718 0619 E 63 ...
