Trane Series R™ Helical Rotary Chiller RTHCE3D2E2

WARNING: Hazardous Voltage! Disconnect all electrical power, including remote disconnects before servicing. Failure to disconnect power before servicing can cause severe personal injury or death.

Perform all weekly and monthly maintenance procedures.

Check the refrigerant charge and oil level.

Routine oil changing is not necessary on a hermetic system.

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

IMPORTANT: Due to the hygroscopic properties of the POE oil, all oil must be stored in metal containers. The oil will absorb water if stored in a plastic container.

Check the pressure drop across the oil filter.

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

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

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?

Describe any issues found during the tube test

Was the test performed at more frequent intervals?

Describe the condition of the compressor and internal components

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

CAUTION: Due to the hygroscopic properties of the POE oil, all oil must be stored in metal containers. The oil will absorb water if stored in a plastic container.

Is the service valve located on the bottom of the oil sump open?

Connect a line to the oil sump drain valve.

Is the valve open and allowing the desired amount of oil to flow into the container?

Measure the exact amount of oil removed from the unit.

Sign off on the compressor oil replacement

CAUTION: Do not use untreated or improperly treated water, or equipment damage may occur.

Condenser tube fouling is indicated when the “approach” temperature is higher than predicted.

If the approach exceeds 10°F cleaning the condenser tubes is recommended.

Remove the retaining bolts from the water boxes at each end of the condenser.

Use a hoist to lift the water boxes.

Work a round nylon- or brass- bristled brush in and out of each of the condenser water tubes to loosen the sludge.

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 Clear Language Display.

Pressure readings should fall within the following ranges specified in the Operating Conditions table:

NOTE: Optimum 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 of the Series R™ Helical Rotary Chiller.