Service manual

B - 21
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0
Appendix B • Vission 20/20 Application Procedures
Flashcard Replacement Procedure
Before powering down to replace the fl ashcard, copy
down all of the follow operating setpoints and confi gu-
ration information.
RECORD OPERATING SETPOINTS AND
CONFIGURATION INFORMATION
1. Confi guration Screen - Page 1
a. Order number
b. Active Remote Control Setting
c. If Active Remote Control = Direct I/O, docu-
ment “type” of Direct I/O selection.
d. Ethernet IP settings
e. Anti-Recycle Settings
2. Confi guration Screen - Page 2
a. Compressor Type, Model, Refrigerant
b. Compressor Control Type & number of
Controllers
c. Oil Pump selection
d. Oil Cooling type
e. Motor Current Device
3. Confi guration Screen - page 3
a. Optional Function Selections
4. 4. Confi guration Screen - Page 6
a. Optional I/O boards
5. Compressor Control Setpoints – all
6. Alarms and Trips Setpoints – all
7. Timer Setpoints – all
8. Instrument Calibration - Pressure page
a. Record Transducer Range selection for suction
pressure, discharge pressure, fi lter inlet pres-
sure, oil manifold pressure.
b. Record ‘total offset” value for suction pres-
sure, discharge pressure, fi lter inlet pressure,
oil manifold pressure
9. Instrument Calibration - Temperature page
a. Record ‘total offset’ for suction temperature,
discharge temperature, oil separator tempera-
ture, oil manifold temperature and process
temperature.
10. Instrument Calibration - Misc page
a. Record current transformer ratio
11. Maintenance Notes –all
12. Compressor Runtime.
REPLACE FLASH CARD
(Refer to Figure B-9)
1. Remove power from Vission 20/20 panel.
2. Remove old fl ashcard and install new fl ashcard and
power panel back up.
RE-ENTER OPERATING SETPOINTS AND
CONFIGURATION INFORMATION
1. Log on as “admin” user (default password = admin).
2. Re-enter all values in Confi guration screen. Of most
importance, is to re-enter the correct compressor
type, model and refrigerant. Re-enter Compressor
Runtime on page 1 of the confi guration screen.
Make sure you re-select any optional boards that
are installed, and apply those additions.
3. Re-enter all Control Limits
4. Re-enter all Alarm and Trip setpoints. Of most im-
portance - under the “Delay” tab, enter 5 seconds
for all alarm and trip delays.
5. Re-enter all Timer Setpoints
6. Re-enter all Instrument Calibration offsets for pres-
sure transducers. Insure that the Suction Pressure
transducer range is properly selected (typically
0-200psia 4-20ma) – but double check proper set-
ting. In Misc page – re-enter C/T Ratio.
7. Re-enter Maintenance Notes if desired.
8. You do not need to recalibrate the capacity and vol-
ume actuators.
Revisions:
• R1-5/25/10 – added notes to insure that op-
tional boards are re-selected after new fl ashcard is
installed.
• R2 – 6/28/10 – added note to indicate recalibration
of actuators is unnecessary.