Trane Series R™ Helical Rotary Chiller RTAC155H

Perform all weekly maintenance procedures

Warning: Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

Perform all weekly and monthly procedures.

Check oil sump oil level while unit is off.

NOTE: Routine changing of the oil is not required. Use an oil analysis to determine the condition of the oil.

Have a qualified laboratory perform a compressor oil analysis to determine system moisture content and acid level.

Contact a qualified service organization to leak test the chiller, to check operating and safety controls, and to inspect electrical components for deficiencies.

Inspect all piping components for leakage and damage. Clean out any inline strainers.

Clean and repaint any areas that show signs of corrosion.

Liquid line service valve is shut

Oil return line service valve is shut

Circuit started with the service tool (access compressor service view in Techview)

Discharge check valve closed after unit trip

Discharge isolation valve is closed

Oil line shut off valve is closed

Refrigerant remainder recovered

NOTE: Remaining vapor can be recovered/stored in the high side of the system. Be certain to follow proper recovery procedures to avoid introduction of non-condensable gases.

Isolate the refrigerant charge outside of the compressor and close all four valves leading to the compressor?

Disconnect power to the chiller?

WARNING: Hazardous Voltage! Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.

Evacuate the compressor through the service fitting provided?

Disconnect all four lines attached to the compressor, as well as the junction box?

Remove three screws from the bottom of the compressor?

Remove the compressor by sliding it out of the chiller onto a well supported skid or other platform?

Reinstall all lines, wires, and screws?

This procedure is used when virtually all of the oil has been removed or if the oil charge is removed from the compressor and oil system only.

If small quantities of oil were removed to service refrigeration components, simply replace the oil that was removed into the serviced component prior to vacuum and recharge of the refrigerant.

If oil was removed from the compressor only to service a compressor or change the oil filter follow this procedure:

Is the compressor a new compressor or has been removed from the system and reworked?

Add 1 quart (2 lb.) oil to the motor cavity prior to installing the compressor into the chiller.

Is the compressor installed in the system?

Is the filter shut off valve closed?

Is the compressor not pressurized?

Is the flare fitting on the oil line shut off valve open?