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APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)
ISM Calibration — J8B 4 to 20mA Output
LEGEND
*Default value is shown only if configurable in this table.
ISM Calibration — J6 0-10V Input
LEGEND
*Default value is shown only if configurable in this table.
Pumpdown/Lockout (Screen 1)
Navigation: MAIN MENU
MAINTENANCE MENU
PUMPDOWN/LOCKOUT
PUMPDOWN — The control shall support the use of an
external means to pump the refrigerant from the evaporator to
the condenser for service purposes.
Upon entering Pumpdown, the following message is
displayed:
Press OK to Start Pumpdown?
If the operator selects the OK key, chilled water pump and
condenser water pump shall be turned on and the following
message is displayed:
Water Flow Verifying...
If both flows are not confirmed before the WATER FLOW
VERIFY TIME, then both pumps shall be de-energized and ei-
ther, or both, of the following messages will be displayed:
Water Flow Verification Failed
At this point, EXIT will be the only course of action.
If both flows are confirmed, the following message will be
displayed with the OK and Cancel soft key:
Continue?
When the operator confirms flow by pressing the OK soft
key the following message will be displayed:
Please Remove Refrigerant. Press OK if Completed.
After operator removes refrigerant and then selects the OK
soft key, the following message will be displayed:
Chiller Lockout in Effect
Once Lockout is in effect, a Startup will not be allowed until
a Terminate Lockout (next section) is performed. The follow-
ing message “Chiller Start or in Quick Test, Pumpdown/Lock-
out Denied” will be displayed.
The Hot Gas Bypass Relay shall be set to OFF to prevent it
from being energized until Lockout is terminated. The only op-
tion the user has at this time is to exit Pumpdown.
TERMINATE LOCKOUT — Upon entering Terminate
Lockout, the operator is prompted by the following message:
Chiller Lockout in Effect
Upon selecting the “End Lockout” key, the following mes-
sage will be displayed:
Press OK to Terminate Lockout?
The CHILLED WATER PUMP and CONDENSER WA-
TER PUMP shall be energized and water flows will be veri-
fied. And then The “Continue?” text will be displayed.
Operator should manually check the water flows. If op-
erator presses the “Exit” button, the following description
will be displayed.
Water Flow Verification Failed
At this point, EXIT will be the only course of action.
If OK button is pressed, the following message will be
displayed:
Please Add Refrigerant. Press OK if Completed.
After adding refrigerant to chiller, the operator shall select
the OK soft key to continue. Upon doing so, the operator is fur-
ther prompted as follows:
Chiller Lockout Terminated
The operator can only exit Terminate Lockout at this point.
Startup is once again allowed by the control and the Hot Gas
Bypass Relay shall be enabled to be turned ON.
CCN TABLE NAME: ISM_CAL1
PIC 5 PATH: Main Menu
Maintenance Menu
ISM Calibration
J8B 4-20mA Output
LINE
PIC 5 DESCRIPTION
CCN NAME
RANGE
DEFAULT
VALUE*
UNIT
READ/WRITE
1
Calibration Enable
cal_en
DSABLE/ENABLE
DSABLE
RW
2
ISM Output mA
ism_ma
4 to 20
0
mA
RW
3
ISM Output Percent
ismo_per
0 to 100
0
%
RO
4
VFD Reading mA
vfd_ma
4 to 20
0
mA
RW
5
VFD Reading Percent
vfdi_per
0 to 100
0
%
RO
6
Calibration Factor
cal_fact
0 to 2000
0
RO
7
Calibration Completed
cal_done
NO/YES
NO
RO
RW — Read/Write
CCN TABLE NAME: ISM_CAL2
PIC 5 PATH: Main Menu
Maintenance Menu
ISM Calibration
J6 0-10V Input
LINE
PIC 5 DESCRIPTION
CCN NAME
RANGE
DEFAULT
VALUE*
UNIT
READ/WRITE
1
Calibration Enable
cal_en
DSABLE/ENABLE
DSABLE
RW
2
VFD Output Voltage
vfd_v
0 to 10
0
Volts
RW
3
VFD Output Percent
vfdo_per
0 to 100
0
%
RO
4
ISM Reading Voltage
ism_v
0 to 10
0
Volts
RW
5
ISM Reading Percent
ismi_per
0 to 100
0
%
RO
6
Calibration Factor
cal_fact
800 to 1200
1000
RO
7
Calibration Completed
cal_done
NO/YES
NO
RO
RW — Read/Write