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3.9 - Verify control board parameters
Parameters should be as follows (please refer to exhibit LH).
Item
specification setting
1.
Chilled-water setting
2.
Chilled-water temperature difference setting
3.
rank-up/down
4.
Purge pump light on
5.
Purge pump light off
Input setting
6.
Control type
7.
Input correction
PID setting
8.
Proportional setting in cooling
9.
Integral setting in cooling
10. Derivative setting in cooling
11. Sampling setting
Field setting
12. Cooling water temperature at maximum input
13. Slow input time
14. Slow input temperature
15. Dilution cycle time
16. remote signal
17. remote off pulse signal
3.10 - Pre-operation checks
Start and stop:
Interlock alarm
•
Chilled water:
•
Cooling water:
Motor alarm:
System alarm:
Check direction of pump rotation
•
Absorbent pump:
•
Refrigerant pump:
•
Purge pump:
Data display
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
Good ®
Not good ®
setpoint
Verify
example
21
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