York R-134a Installation Instructions

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LD08634

MODEL YD (Mod C)

(COOLING ONLY)

WITH OPTIVIEW™ CONTROL CENTER

Issue Date:

October 30, 2015

CENTRIFUGAL LIQUID CHILLERS

INSTALLATION INSTRUCTIONS Supersedes 160.69-N3 (414) Form 160.69-N3 (1015)

R-134a

Table of Contents

Other manuals for York R-134a

Operation And Maintenance Manual38 pages

Questions and Answers:

C
cherylsalinasAug 15, 2025
What to do if my York R-134a Chiller has abnormally low suction pressure?
- H
  Heather MitchellAug 16, 2025
  If your York Chiller is experiencing abnormally low suction pressure, several factors could be responsible. You may have insufficient refrigerant, so check for leaks and add refrigerant to the system. There might be a variable orifice problem, requiring the removal of any obstruction. Dirty or restricted evaporator tubes can also cause this issue, so clean them. Finally, it could be due to insufficient load for the system capacity; in this case, check the pre-rotation vane motor operation and the setting of the low water temperature cutout.
F
fmcdonaldAug 19, 2025
How to fix abnormally high discharge pressure in my York Chiller?
- C
  cchanAug 19, 2025
  Abnormally high discharge pressure in your York Chiller can occur due to several reasons. The condenser tubes might be dirty or scaled, requiring cleaning and a check of the water conditioning. Another cause could be high condenser water temperature, suggesting a need to reduce the condenser water inlet temperature, and you should also check the cooling tower and water circulation. Finally, insufficient condensing water flow could be the culprit, in which case you should increase the quantity of water through the condenser to the proper value.
G
Gina WolfAug 21, 2025
Why does my York R-134a Chiller have high evaporator pressure?
- J
  juan32Aug 21, 2025
  High evaporator pressure in your York Chiller can be attributed to a couple of reasons. One potential cause is the failure of the pre-rotation vanes to open, which necessitates checking the pre-rotation vane motor positioning circuit. Another reason might be system overload. Ensure the vanes are wide open (without overloading the motor) until the load decreases.
S
Steven SmithAug 25, 2025
What to do if the oil pump in my York Chiller vibrates or is noisy?
- M
  Ms. Rebecca YoungAug 26, 2025
  If the oil pump in your York Chiller is vibrating or noisy, it could be due to a couple of reasons. First, the oil may not be reaching the pump suction inlet in sufficient quantity, so check the oil level. Second, the oil pump may be worn or failed, requiring repair or replacement.
B
Blake KingAug 27, 2025
What should I do if there's no oil pressure when the start button is pushed on my York R-134a?
- J
  Jimmy JohnsonAug 27, 2025
  If there's no oil pressure when you push the start button on your York Chiller, it could be because the oil pump is running in the wrong direction; check the rotation of the oil pump. Alternatively, the oil pump might not be running at all, so troubleshoot the electrical problem with the oil pump VSD.
J
joshuathompsonAug 30, 2025
How to resolve reduced oil pump capacity in my York Chiller?
- R
  Rose MartinezAug 30, 2025
  If your York Chiller has reduced oil pump capacity, it could be caused by excessive end clearance in the pump or other worn pump parts; inspect and replace any worn parts. Another possible cause is a partially blocked oil supply inlet, so check the oil inlet for any blockage.
A
Andrew NelsonSep 2, 2025
Why does my York Chiller oil pressure gradually decrease?
- J
  Jose PowellSep 3, 2025
  If you notice that the oil pressure in your York Chiller is gradually decreasing, it is likely because the oil filter is dirty. You should change the oil filter.
J
jacksonevanSep 5, 2025
What causes unusually high oil pressure in my York Chiller?
- L
  Larry HartmanSep 6, 2025
  If unusually high oil pressure develops when the oil pump runs in your York Chiller, it may be because the oil pressure transducer is defective. Consider replacing the low or high oil pressure transducer.
C
Charles LopezSep 8, 2025
What to do if York Chiller oil pressure system stops returning an oil/refrigerant sample?
- K
  Karen MartinSep 9, 2025
  If the oil pressure system in your York Chiller stops returning an oil/refrigerant sample, the filter-drier in the oil return system might be dirty, so replace the old filter-drier with a new one. Also, the jet or orifice of the oil return jet could be clogged; remove the jet, inspect it for dirt, remove the dirt using solvent, and then replace it.
M
Matthew ElliottSep 12, 2025
What causes the oil pump to fail to deliver oil pressure in my York R-134a?
- A
  Adam ConleySep 12, 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. Try replacing the oil pressure transducer.

York R-134a Specifications

General

Brand	York
Model	R-134a
Category	Chiller
Language	English

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