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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
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Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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York Centrifugal Chiller YKZQZQK75DDGS

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Maintenance Plans for York Centrifugal Chiller Model YKZQZQK75DDGS

Integrate maintenance plans directly into your work orders in MaintainX.

1 Yearly Compressor Maintenance

7.1.6 Annually (more often if necessary)

Drain and replace the oil in the compressor oil sump

7.3 Oil Charge

Verify the nominal oil charge for the compressor is 75.7 litres of York 'K' oil

Ensure only York 'K' refrigeration oil is used in the centrifugal compressor

Keep oil tightly capped until used to prevent moisture absorption

7.3.1 Oil Charging Procedure

Shut down the unit

Open the oil charging valve and pump oil until the level is midway in the upper sight glass

Run this procedure

6 Monthly Chiller Maintenance

7.1.5 Every 6 Months (or more often as required)

Change and inspect compressor oil filter element

Inspect for internal wearing of compressor parts

Is the unit shutting down on High Oil Temperature or Low Oil Pressure?

Examine oil filter element for aluminum particles

Are aluminum particles found in the oil filter?

Contact York Service Agent if aluminum particles continue to accumulate

Has the variable speed oil pump (VSOP) Drive frequency increased to 55 Hz?

Inspect oil filter for aluminum particles indicating possible bearing wear

Run this procedure

1 Yearly Heat Exchangers Maintenance

7.1.6 Annually (more often if necessary)

Inspect and clean components

7.5 Condenser and Evaporator

Is the water side of the condenser and evaporator clean?

Check for common issues due to untreated water

Is the temperature difference between the water off the condenser and the condenser liquid temperature more than 2.2 K greater than the difference recorded on a new unit?

Has the temperature difference between the refrigerant and the chilled water increased slowly over the operating season?

7.5.1 Chemical Water Treatment

Has a chemical analysis of the water been conducted?

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1 Yearly Chiller Maintenance

7.1.6 Annually (more often if necessary)

Inspect and service electrical components as necessary

Perform chemical analysis of system

7.8 Electrical Controls

Inspect all electrical controls for obvious malfunctions

Ensure factory settings of controls (operation and safety) are unchanged

Run this procedure

Chiller Shutdown Maintenance

6.8 Prolonged Shutdown

Test all system joints for refrigerant leaks with a leak detector

Were any refrigerant leaks found?

Repair any detected refrigerant leaks before long-term shutdown

Is the system tightness checked periodically during idle periods?

Drain water from cooling tower, condenser, condenser pump, chilled water system, chilled water pump, and coils if freezing temperatures are encountered

Open drains on evaporator and condenser liquid heads to ensure complete drainage

Drain water from additional systems if applicable

Disable the clock on the SETUP Screen to conserve battery

Run this procedure