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Note
Release of refrigerant to the atmosphere is harmful to the environment. Refrigerant must be
recycled in accordance with state and local regulations.
4. Remove failed compressor.
5. Follow manufacturer's instructions to clean out kits.
6. Install replacement compressor and make all connections. Do pressurization and
leakage tests to the system at approximately 150PSIG (1034kPa).
7. Evacuate the system twice to 1500 microns and the third time to 500 microns.
Break the vacuum each time with clean and dry refrigerant to 2PSIG (13.8kPa).
8. Charge the system with refrigerant based on the requirements of the evaporator,
condenser and lines.
9. Apply power and operate the system. Check for proper operation. Refer to the
circulation suction pressure and discharge pressure ranges in normal operation,
and supplement some refrigerant if necessary.
6.3 Condenser
6.3.1 Refrigeration System
Each month the components of the refrigerant system should be inspected for
proper function and signs of wear. Refrigerant lines must be properly supported and
not allowed to vibrate against ceiling, floors, or the unit frame. Inspect all refrigerant
lines every six months for signs of wear.
6.3.2 Air Cooled Condensing Units
Use compressed air or fin cleaner (alkalescence) to clean the condenser of all
debris that inhibits airflow. The compressed air should be blown at the reversed
airflow direction. In winter, do not let snow to accumulate around the side or
underneath the condenser. At the same time check for bent or damaged coil fins
and repair as necessary. Check all refrigerant lines and capillaries for vibration and
support as necessary. Carefully inspect all refrigerant lines for signs of oil leaks.
6.4 Maintenance Inspection Checklist
Note
Regular inspections are necessary to assure proper operation.
DataMate 3000 Series Air Conditioner User Manual
Chapter 6 Maintenance
51
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