York YK Series User Manual (English)

Other manuals for York YK Series

Operation And Maintenance38 pages

Installation Guide34 pages

Questions and Answers:

K
Karl NelsonAug 15, 2025
Why is the discharge pressure abnormally high in my York Chiller?
- T
  Tara JohnsonAug 15, 2025
  Abnormally high discharge pressure in your York Chiller can be caused by several factors. It could be due to air in the condenser, dirty or scaled condenser tubes (in which case you should clean the condenser tubes and check water conditioning), high condenser water temperature (reduce condenser water inlet temperature, checking the cooling tower and water circulation), or insufficient condensing water flow (increase the quantity of water through the condenser to the proper value).
J
James CookAug 18, 2025
What to do if my York YK Chiller has abnormally low suction pressure?
- K
  Karl GriffithAug 18, 2025
  If your York Chiller has abnormally low suction pressure, it could be due to several reasons. It might be caused by an insufficient charge of refrigerant (check for leaks and charge refrigerant into the system), a variable orifice problem (remove obstruction), evaporator tubes being dirty or restricted (clean evaporator tubes), or insufficient load for system capacity (check prerotation vane motor operation and setting of low water temperature cutout).
R
Richard NovakAug 21, 2025
What to do if oil pump vibrates in York YK?
- J
  Jennifer ReedAug 21, 2025
  If your York Chiller's oil pump vibrates or is noisy, it could be due to insufficient oil reaching the pump suction inlet (check oil level) or a worn or failed oil pump (repair/replace the oil pump).
K
Kimberly ReedAug 25, 2025
How to fix high evaporator pressure in York YK?
- B
  Benjamin ClaytonAug 25, 2025
  High evaporator pressure in your York Chiller can be caused by prerotation vanes failing to open (check the prerotation vane motor positioning circuit) or system overload (ensure the vanes are wide open, without overloading the motor, until the load decreases).
V
victoriabondAug 27, 2025
What causes reduced oil pump capacity in York YK?
- R
  Robin BrownAug 27, 2025
  Reduced oil pump capacity in your York Chiller can stem from excessive end clearance in the pump or other worn pump parts (inspect and replace worn parts), or a partially blocked oil supply inlet (check the oil inlet for blockage).
G
Gina MorrowAug 30, 2025
What to do if the York YK oil pressure system ceases to return an oil/refrigerant sample?
- S
  Sean ThompsonAug 30, 2025
  If the York Chiller oil pressure system ceases to return an oil/refrigerant sample, it may be due to a dirty filter-drier in the oil return system (replace the old filter-drier with a new one) or a clogged jet or orifice of the oil return jet (remove the jet, inspect for dirt, remove dirt using solvent, and replace).
N
Nicole DillonSep 2, 2025
Why does the oil pressure gradually decrease in my York YK Chiller?
- B
  bmccannSep 2, 2025
  If the oil pressure in your York Chiller gradually decreases, as noted by observation of daily log sheets, it is likely that the oil filter is dirty. You should change the oil filter.
J
johnsonwilliamSep 5, 2025
What causes unusually high oil pressure in York Chiller?
- J
  Joseph LucasSep 5, 2025
  Unusually high oil pressure that develops when the oil pump runs in your York Chiller might be caused by a defective high oil pressure transducer. Replace the low or high oil pressure transducer.
E
Ernest JacksonSep 8, 2025
What to do if York YK oil pump fails to deliver oil pressure?
- J
  Jennifer JohnsonSep 8, 2025
  If the oil pump fails to deliver oil pressure in your York Chiller, it could be due to a faulty oil pressure transducer or faulty wiring/connectors. Replace the oil pressure transducer.
X
xwilliamsSep 12, 2025
What to do if there is no oil pressure when system start button is pushed on York Chiller?
- M
  Matthew CortezSep 12, 2025
  If there is no oil pressure when the system start button is pushed on your York Chiller, it could be because the oil pump is running in the wrong direction (check the rotation of the oil pump) or the oil pump is not running (troubleshoot the electrical problem with the oil pump VSD).