Overview
The 7KPH and 14KPH require annual filter replacement at 1,000 run hours or 12 months, whichever comes first. The controller will display a filter alarm when service is due — "FAlm" on TWIX units, "FILtr" on Panasonic units. Environments with higher levels of airborne dust or contaminants may require more frequent changes. The annual filter replacement kit for both models is FRP-001.
There are three filters that must be replaced as part of this service: the air pre-filter on the compressor intake, the particulate filter, and the coalescing filter. All three are included in the FRP-001 kit along with replacement O-rings.
Parts Required
| Item | Part Number | Applies To |
|---|---|---|
| Annual Filter Replacement Kit | FRP-001 | 7KPH, 14KPH |
Tools Required
Phillips-head screwdriver for particulate element removal. Have a clean dry cloth available for wiping down filter bowls and housings.
Procedure
Step 1 — Power Down and Access the Filters
- Turn off the power switch located on the upper left side of the cabinet on the control panel.
- Allow the system to fully depressurize before proceeding. Confirm zero pressure on the downstream gauge before loosening any filter housing.
- Remove the front cover to gain access to the filters.
Step 2 — Air Pre-Filter
The air pre-filter is mounted on the compressor air intake and prevents particles from entering the compressor housing.
- Locate the pre-filter housing on the compressor air intake.
- Remove the filter cap by twisting it clockwise.
- Remove the old filter element.
- Wipe the inside of the filter housing with a clean dry cloth.
- Install the new filter element and replace the cap.
Step 3 — Particulate and Coalescing Filters
The particulate filter (5 micron) and coalescing filter (0.1 micron) are located after the air compressor. Both filters include an auto-drain plumbed to the outside of the cabinet.
- Verify the gauge after the filter bowls reads 0 PSIG before proceeding.
- Unscrew the filter bowls by turning them counter-clockwise.
- Once removed, rinse any debris from the bowls with warm water.
- Dry the bowls thoroughly with a clean dry cloth.
- Replace the old O-rings with the new ones provided in the kit.
- Using a Phillips-head screwdriver, remove the particulate filter element and replace it with the new element from the kit.
- Remove the coalescing element by turning it counter-clockwise by hand. Replace with the new element in reverse order.
- Once both elements have been replaced and the bowls cleaned, reinstall the bowls into their corresponding filter housings. Hand-tighten only — do not use tools to tighten the filter bowls.
Step 4 — Reset the Filter Change Timer
The filter change timer must be reset after every filter replacement. Identify your controller and follow the appropriate reset procedure below.
TWIX Controller (Current — MiniPSA v7 and later)
- Locate the Filter Change Reset button (F2) on the electrical panel.
- Press and hold F2 for 10 seconds.
- The display will return to normal run status, confirming the timer has been reset.
Panasonic FP-e Controller (Older Units)
- If the display shows "LOCK," press and hold the Mode Select Button to unlock the controller.
- Press the Mode Select Button until the System Mode Indicator displays "S" (Switch mode).
- Press and hold Button 0 (Filter Change Reset) for 7 seconds.
- An audible beep and a display of "reSet" confirm the 1,000-hour filter timer has been reset.
Step 5 — Reassemble and Verify
- Replace the front cover on the cabinet.
- Restore power by turning on the power switch. You should hear the air compressor start and the system will resume nitrogen production.
- Check all filter bowl connections for leaks once the system is back up to pressure.
- Verify the filter alarm is no longer displayed on the controller.
Maintenance Schedule
| Service Item | Interval | Kit |
|---|---|---|
| Air pre-filter element | 1,000 run hours or 12 months, whichever comes first | FRP-001 |
| Particulate filter element and O-ring | 1,000 run hours or 12 months, whichever comes first | FRP-001 |
| Coalescing filter element and O-ring | 1,000 run hours or 12 months, whichever comes first | FRP-001 |
| Filter change timer reset | After every filter replacement | N/A |
Related Articles
| Article | Applies To |
|---|---|
| Installation & Startup — 7KPH | 7KPH |
| Installation & Startup — 14KPH / 14KPH-HO | 14KPH, 14KPH-HO |
| Annual Filter Replacement — 14KPH-HO | 14KPH-HO |
| BlastOff™ Leak Detection System | All models |
| Pressure Troubleshooting | All models |
| Product Overview & Model Guide | All models |
Contact South-Tek Systems
Phone: (910) 415-1880
Email / Ticket: support@southteksystems911.zendesk.com