1. SITUATION
There is too much oil consumption at Compressors for Cascade Chiller System.
As the information from LBC, their operator has charged oil around 10 litters every week.
In April, our staff went to site to check and modify Oil Return Pipe of Oil Separators.
But the situation is not change as before.
This time, Manager of Service Team (Mr. Kajit & Mr. Sato) have been to site for checking.
2. RESULT OF INSPECTION
Generally, some of abnormal operations cause high oil consumption.
For example, "Liquid Back" Operation, too much frequency of Load - Unload, and so on.
But This time, we couldn't find this kind of abnormal operation at all.
3. EXPECTED CAUSE OF PROBLEM
Now we cannot say the cause of problem clearly.
We need more inspection as below for finding the cause of problem.
4. MORE INSPECTIONS
For making the cause of problem clearly, we will continually watch the situation.
LBC's co-operations are necessary for us.
a. Operating Data
We've already set PC in Control Panel for collecting Operating Data of Compressors and Cascade
Chiller System. Now, it is collecting data every 1 minutes.
b. Detail of Oil Consumption
We requested Mr. Xaisana for checking detail of oil consumption.
b.-1 We put tape with scale on Oil Sight Glass of each Compressor.
b.-2 Please make a record of Oil Level at Sight Glass every day.
b.-3 When charging oil, please make record of Oil amount charged (one by one), operating hour of
Compressors, Oil Level difference (before & after), and so on.
c. Some Parts inside Compressor
If there is no problem for operating conditions, we need to open Compressors and check some
parts.
d. Piping Modification
We will plan to modify some piping for making Oil Separator more effective.
We will submit schedule and plan for this work soon.