Air Filter - Cleaning
Clean the filters after 90 days of operation.
Filters should be cleaned more frequently if you notice any of the following conditions:
- Excessive buildup of dust
- The filter deflects excessively due to blocked air flow
- The system temperatures are steadily increasing or the UPS presents temperature warnings
Filter cleaning is not covered by warranty or standard service contracts.
Filters are installed in the front doors of the cabinet. The filters are the washable electrostatic type and can be removed for cleaning without opening the cabinet doors.
Flywheels and Cabinets - Clean
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Risk of electric shock or energy hazard. Parts inside this UPS are energized by the flywheel even when the AC power is disconnected. |
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The accumulation of dust on the surface of the flywheel and inside the cabinets can reduce heat transfer and reduce cooling. The routine replacement of air filters should minimize dust buildup on these surfaces.
- Monitor general cleanliness.
- If you notice excessive dust or contaminant buildup on system components, carefully vacuum the dust from the components.
Vacuum Pump Oil - Change
The vacuum pump oil should be changed once per year. If storage is anticipated, or if vacuum pump shutdown is anticipated for more than 30 days, the vacuum pump oil reservoir should be drained and filled with new oil.
Vacuum Pump Oil
All of the cabinets with a flywheel contain a vacuum pump. The vacuum pump requires a yearly oil change. Refer to the "Vacuum Pump Oil - Change" section of this document for information in order to replace the vacuum pump oil. The "Vacuum Pump Oil - Change" section is in "Chapter 13 - Procedures" of this document.
Flywheel Bearing - Replace
UPS flywheel bearings must be changed due to wear and vibration.
Scheduled bearing change interval is every 2.5 years. A bearing may need changed earlier in system service life if there is excessive vibration or elevated temperature.
When the time limits for the bearing life of each flywheel bearing have been reached, a notice message will appear and the alarm will sound. When the bearings are replaced, the installation date can be set to the current date via CSVIEW.
The bearings are contained in removable cartridges. The cartridges are replaced at the same time as the bearings. The cartridges must be positioned accurately for proper operation.
For the replacement procedure, refer to the "Flywheel Bearing - Replace" section of this document section that is in "Chapter 13 - Procedures".
Controller Board Battery Replacement
There are two printed circuit (pc) boards that control the Series 1200 UPS System. Each pc board contains a lithium ion battery.
The UPS Controller Board (APC2) contains a lithium ion battery. The UPS Controller Board (APC2) is located in the "Controls" cabinet.
The "CSHV Controller Board" (APC) contains a lithium ion battery. "CSHV Controller Board" (APC) is located in the "CSHV" cabinet.
The UPS Controller Board and the"CSHV Controller Board" has a lithium ion battery in order to maintain power for the on board clocks, discharge the counter, and for the uptime counter.
The lithium ion batteries for both the UPS and the controller boards for the Flywheel Cabinets have a life of five (5) years.
If either of the following symptoms appear, the batteries may need replaced.
- Telemetry appears to be inaccurate.
- The system will not restart properly after utility power is lost and system has discharged completely.
Refer to the "Controller Board Battery - Replace" section that is located in the "Procedures" portion of this document. The "Controller Board Battery - Replace" section will provide instructions in order to replace the batteries.
Capacitors - Replace
Capacitors that are in the inverter cabinet and the Flywheel Cabinet should be replaced about every seven (7) years. Capacitor replacement frequency is greatly affected by per cent load, types of loads, and operating environment temperatures. Refer to Table 1.
| Ambient Temperature (Degrees C) | Per Cent Load | Lagging Power Factor | Number Years Between Replacement |
| 40 | 100 | 0.8 | 5 |
| 30 | 100 | 0.8 | 8 |
| 40 | 75 | 0.8 | 10 |
| 30 | 75 | 0.8 | 18 |
Cable and Bus Connections - Check
The recommended interval in order to check the tightness and torque of the major power conductors is once every three (3) to five (5) years.
The interval period may vary due to local environmental conditions.
An alternate solution in order to avoid manually checking the tightness and torque of each physical connection, would be to scan the system with a thermal camera while the system is under normal load. Normal load assumes 50% to 100% nominal system capacity.