Trane Series R™ Helical Rotary Chiller RTWD150PREM

Has the service been completed?

Once service is complete, the waterbox/ cover should be reinstalled following all previous procedures in reverse.

Are new o-rings or gaskets used on all joints after thoroughly cleaning each joint?

Contact local Trane parts center for information.

Are the waterbox/cover bolts torqued?

Note: Torque bolts in a star pattern. See the table below for torque values.

Sign off on the chiller reassembly

Use a nondestructive tube test to inspect the condenser and evaporator tubes at 3-year intervals.

NOTE: It may be desirable to perform tube tests on these components at more frequent intervals, depending upon chiller application. This is especially true of critical process equipment.

Depending on chiller duty, contact a qualified service organization to determine when to conduct a complete examination of the unit to determine the condition of the compressor and internal components.

Nondestructive tube test passed?

Notes on the condition of the compressor and internal components

Sign off on the 3 Yearly Series R™ Helical Rotary Chiller Maintenance

Warning: This procedure requires trained personnel with PPE!

Name of the water treatment specialist consulted

Materials used in the external circulation system

Duration of the cleaning period

Was safety gear used during the procedure?

Sign off on the chemical cleaning

After the unit has operated for approximately 30 minutes and the system has stabilized, check the operating conditions and complete the procedures below:

Check evaporator and condenser pressures with gauges and compare to the reading on the unit chiller.

Pressure readings should fall within the specified ranges listed in Table 23, p. 65 and Table 24, p. 65. If chiller measurements vary significantly from values listed, problems may exist with refrigerant and oil charge levels. Contact local Trane service.

Note: Optimal condenser pressure is dependent on condenser water temperature, and should equal the saturation pressure of the refrigerant at a temperature 2 to 5°F above that of leaving condenser water at full load.

Sign off on the weekly maintenance check.

Clean all water strainers in both the chilled and condensing water piping systems

See “Refrigerant and Oil Charge Management,” p. 65. If chiller measurements vary significantly from values listed in Table 23, p. 65 and Table 24, p. 65, problems may exist with refrigerant and oil charge levels.

Contact local Trane service if measurements vary significantly?