Trane Series R™ Helical Rotary Chiller RTAC185H

Follow the manufacturer’s recommendations for selection and installation procedures.

Mount the switch upright, with a minimum of 5 pipe diameters of straight horizontal run on each side. Do not install close to elbows, orifices or valves.

Is the arrow on the switch pointing in the direction of flow?

To prevent switch fluttering, remove all air from the water system.

The CH530 provides a 6-second time delay after a “loss-of-flow” diagnostic before shutting the unit down. Contact a qualified service representative if nuisance machine shutdowns persist.

Adjust the switch to open when water flow falls below the minimum flow rate. Evaporator data is given in the General Information section. Flow switch contacts are closed on proof of water flow.

Is the switch adjusted to open when water flow falls below the minimum flow rate?

Install a pipe strainer in the entering evaporator water line to protect components from waterborne debris.

Sign off on the evaporator flow switch installation

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.

Inspect the individual pieces of the shipment for obvious damage

Inspect the unit for concealed damage

Date of concealed damage report

Evidence that the damage did not occur after delivery

Notify the carrier’s terminal of the damage immediately, by phone and by mail

Request an immediate, joint inspection of the damage with the carrier and the consignee

Notify the Trane sales representative and arrange for repair

Do not repair the unit until damage is inspected by the carrier’s representative

Warning: This procedure requires trained personnel with PPE!

Use the initial charging procedure under the following circumstances:

NOTE: This procedure can be followed even with the refrigerant charge isolated in the evaporating section of the unit.

If small quantities of oil were removed to service refrigeration components, such as the evaporator, 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:

If the compressor is 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 com¬pressor into the chiller.

Compressor installed in the system?

Make sure that the filter shut off valve is closed. Other compressor isolation valves may also be closed depending upon the service that was completed.

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.