 |
When to replace the Cryogeneic high-vacuum cryo-pump refrigerant oil? |
 |
|
To maintain the performance and lifetime of the compressor operation, compressor running hours reach at 10,000 ~ 15,000 hours (in 24 hours of continuous operation basis, about 1 year~1½year), should replace compressor refrigerant Oil.
If without professional guidance, do not try to do replacement of the action, so as to avoid serious consequences, please contact customer service agent or the Department of Jern Ru for replacement.
|
|
|
|
|
How many type of cryogenic refrigerant? |
|
|
There are two type of refrigerant:
[1] Non-environmentally friendly refrigerant (HFC-H)
[2] Environmentally friendly refrigerant (HFC-F)
This two refrigerant are prohibit of mixed use.
|
|
|
|
|
How many type of cryogenic refrigerant oil? |
|
|
There are two type of cryogenic refrigerant oil:
[1] JR-H-150 (Mineral, for Non-environmentally friendly system)
[2] JR-F-32、JR-F-68 (Synthetic oil, for Environmentally friendly system)
This two cryogenic refrigerant oil are prohibit of mixed use.
|
|
|
|
|
Discharge pressure warning lights, then how to solve the problem? |
|
|
Please follow theses step:
(1) Make sure the cooling water temperature is between 15℃~25℃
(2) Confirm the cold-trap interface heat load is in the normal range
(3) If the model has defrost function, make sure that defrost procedures are working properly
If the warning light is still lit, please contact the Jern Ru Customer Service Department
|
|
|
|
|
Suction pressure warning lights, then how to solve the problem? |
|
|
(1) Make sure the cooling water temperature is between 15℃~25℃
If the warning light is still lit, please contact the Jern Ru Customer Service Department
|
|
|
|
|
High Discharge temperature warning lights, then how to solve the problem? |
|
|
(1) Make sure the cooling water temperature is between 15℃~25℃
(2) Confirm the cold-trap interface heat load is in the normal range
(3) If the model has defrost function, make sure that defrost procedures are working properly
(4) Confirm the discharge temperature controller setting is set at 145℃
If the warning light is still lit, please contact the Jern Ru Customer Service Department
|
|
|
|
|
High Liquid Temperature warning lights, then how to solve the problem? |
|
|
Please follow these step:
(1) Confirm the cooling water flow in the correct direction
(2) observed the cooling water temperature for 30 minutes, make sure the temperature is between 15 ℃ -25 ℃
(3) Confirm the cooling water temperature controller setting is set at 33 ℃
If the warning light is still lit, please contact the Jern Ru Customer Service Department
|
|
|
|
|
Compressor O/L(Overload) warning lights, then how to solve the preblem? |
|
|
Please follow these step:
(1) Please detected by a qualified electrician, make sure the power supply stable
If the warning light is still lit, please contact the Jern Ru Customer Service Department
|
|
|
|
|
How long you need to clean the chiller condenser? |
|
|
|
|
How long you need to replace the water in chilled water tank? |
|
|
About a month need to replace clean water. ( Normal tap water can do )
|
|
|
|
> Q&A
