Trane Series R™ Helical Rotary Chiller RTAC170S

Inspect the individual pieces of the shipment for obvious damage

Inspect the unit for concealed damage

If concealed damage is discovered, stop unpacking the shipment. Do not remove damaged material from the receiving location.

Provide 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.

Enter the details of the carrier notified

Notify the Trane sales representative and arrange for repair. Do not repair the unit, however, until damage is inspected by the carrier’s representative.

Enter the details of the Trane sales representative notified

Warning: This procedure requires trained personnel with PPE!

This procedure is used under the following circumstances: When virtually all of the oil has been removed, if the oil charge is removed from the compressor and oil system only but the unit has been run for less than 15 minutes, if the oil charge is removed from the compressor and oil system only and the unit has been run for more than 15 minutes.

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:

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?

Ensure enough space around the outdoor unit for unrestricted access to all service points.

Refer to submittal drawings for the unit dimensions.

Enter the clearance in feet for compressor service (minimum recommended is 4 feet)

Provide sufficient clearance for the opening of control panel doors.

Refer to Figure 18 through Figure 19 for minimum clearances.

Local codes requiring additional clearances will take precedence over these recommendations.

Ensure unobstructed flow of condenser air to maintain chiller capacity and operating efficiency.

Avoid warm air recirculation and coil starvation.

Do not allow debris, trash, supplies etc. to accumulate in the vicinity of the unit.

While unit is running in stable conditions.

Check MP pressure for evaporator, condenser and intermediate oil.

Observe liquid line sight glass on EXV.

If liquid line sight glass has bubbles measure the subcooling entering the EXV. The subcooling should never be less than 4 °F under any circumstances.

A clear sightglass alone does not mean that the system is properly charged. Also check the rest of the system operating conditions.

Inspect the entire system for unusual conditions and inspect the condenser coils for dirt and debris. If the coils are dirty, refer to coil cleaning.

Sign off on the weekly maintenance

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.