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2.8 - operation
2.8.1 - Test operation
Before starting the chiller, check the opening of the valves and
the damper position. Refer to exhibit LJ.
Usually the units are factory-adjusted, but when assembling
them on site or operating them for the first time, the following
adjusting procedure should be taken.
Mark
Item
B1*
Hammer sound
(heat exchanger)
* During the adjustment, service engineers must stay near the chiller, because it is running with the hot water control valve forced open.
2.8.2 - operation and data record
Record data three times at 10 to 15-minute intervals during
stable operating conditions.
Tools required to record operation data
•
Thermometer
•
Pressure gauge
•
Stop watch
•
Solution sampling tool
•
Gravimeter
•
Concentration table as attached
1
Criteria
No hammer sound
2.8.3 - Absorbent sampling
Sampling should be carried out as follows:
•
•
•
Action
Close the diluted solution damper little by little
(angle ± 2°)
Sampling of diluted solution
Sampling from SV4, located on the absorbent pump outlet
Solution should be sampled twice. The sample quantity is
100 ml. The second sample should be used for analysis.
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