Trane Series R™ Helical Rotary Chiller RTAC400S

Warning: This procedure requires trained personnel with PPE!

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?

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

Enter the unit dimensions as per submittal drawings

Enter the minimum clearance for compressor service (Recommended: 4 feet or 1.2 m)

Is there sufficient clearance for the opening of control panel doors?

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

Is there unobstructed flow of condenser air?

Avoid warm air recirculation and coil starvation.

Is there any debris, trash, supplies etc. in the vicinity of the unit?

Keep condenser coils and fan discharge free of snow or other obstructions.

Suction line isolation valve is closed

Oil return line service valve is closed

Liquid line service valve is closed

Refrigerant moved from the condenser to evaporator using a liquid pump or vacuum pump

NOTE: If a pump is to be used, connect it before closing this valve. This port is only isolated when the valve is back seated. If a vacuum pump is used, then connect it to the discharge line service valve near the oil separator.

Evaporator is large enough to hold all the charge for any unit to below the center-line of the shell

Sign off on the Low Side Charge Isolation procedure

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. For example, changing the oil filter would require the compressor to be isolated and pulled into vacuum.

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.

Provide evidence that the damage did not occur after delivery

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

Record the details of the conversation with the carrier’s terminal

Notify the Trane sales representative and arrange for repair.

Record the details of the conversation with the Trane sales representative