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Foundation™ (GBC180-300) Rooftop Units: Monthly Maintenance

This procedure is the recommended monthly maintenance procedure for your equipment. Performing all maintenance procedures and inspection at the recommended intervals will prolong the life of your chiller and minimize the possibility of malfunctions.
MaintainX
05/03/2021

Foundation™ (GBC180-300) Rooftop Units: Monthly Maintenance

4 steps
This procedure is the recommended monthly maintenance procedure for your equipment. Performing all maintenance procedures and inspection at the recommended intervals will prolong the life of your chiller and minimize the possibility of malfunctions.
  • Monthly Maintenance

  • Before completing the following checks, turn the unit OFF and lock the main power disconnect switch open.

  • ! WARNING

  • Hazardous Voltage!

  • Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Verify that no power is present with a voltmeter.

  • Filters

  • Inspect the return air filters. Clean or replace them if necessary. Refer to the unit Service Facts for filter information.

  • Condensate Overflow Switch

  • During maintenance, the switch float (black ring) must be checked to ensure free movement up and down.

  • Cooling Season

  • With the unit running, check and record the following:

  • Record this data on an “operator’s maintenance log” like the one shown in Sample maintenance log table in Final Process Section. If the operating pressures indicate a refrigerant shortage, measure the system superheat and system subcooling. For guidelines, refer to “Compressor Start-Up,” p. 34.

  • Important: Do not release refrigerant to the atmosphere! If adding or removing refrigerant is required, the service technician must comply with all federal, state and local laws. Refer to general service bulletin MSCU-SB-1 (latest edition).

  • Heating Season

  • Coil Cleaning

  • Regular coil maintenance, including annual cleaning enhances the unit’s operating efficiency by minimizing the following:

Please note that any procedure, checklist, or other document available in the MaintainX Global Procedure Library is provided for general education and information only and does not constitute legal, medical, or financial advice. MaintainX makes the materials available AS IS and AS PROVIDED, without warranties of any kind. By downloading or using any such materials, you assume the risk that they may not be appropriate for your specific situation and agree that you are solely responsible for any such use, including compliance with applicable law and with meeting any conditions of product warranties.