General • Maintenance

Series R® Helical Rotary Chiller: Weekly Maintenance

This procedure is the recommended weekly maintenance procedure for your equipment. Performing all maintenance procedures and inspection at the recommended intervals will prolong the life of your chiller and minimize the possibility of malfunctions.

MaintainX

10/24/2021

Series R® Helical Rotary Chiller: Weekly Maintenance

Maintenance

Perform all maintenance procedures and inspections at the recommended intervals. This will prolong the life of the chiller and minimize the possibility of costly failures.

Use the “Operator’s Log”, such as that show in chapter “Log and Check Sheet,” p. 124 to record an operating history for unit. The log serves as a valuable diagnostic tool for service personnel. By observing trends in operating conditions, an operator can anticipate and prevent problem situations before they occur. If unit does not operate properly during maintenance inspections, see “Diagnostics,” p. 103.

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

Weekly

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.
Important: 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.

Source: Trane (www.trane.com)

Maintenance

Perform all maintenance procedures and inspections at the recommended intervals. This will prolong the life of the chiller and minimize the possibility of costly failures.

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

Weekly

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.

Important: 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.