Annual Filter Replacement — BeerBlast™ / N2-GEN™ 7KPH / 14KPH

Applies to: BeerBlast™ 7KPH, BeerBlast™ 14KPH, N2-GEN™ 7KPH, N2-GEN™ 14KPH

Does NOT apply to: BeerBlast™ / N2-GEN™ 1KPH, 3KPH, 14KPH High Output — see the applicable filter replacement article for those models.

⚠ WarningPower down the system and allow it to fully depressurize before performing any filter maintenance. Do not attempt to remove filter bowls while the system is pressurized. Confirm zero pressure on the downstream gauge before loosening any filter housing.

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.

▲ AttentionThe filter change timer must be reset after every filter replacement. Failure to reset the timer will leave the filter alarm active and prevent accurate tracking of the next service interval. Reset instructions are included at the end of this procedure — do not skip this step.

▲ AttentionUse only South-Tek Systems specified filters. Use of non-factory filters may cause permanent damage to the generator media and will void the warranty. A plugged drain system will carry water and oil into the system, causing permanent damage not covered under warranty.

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

1. Turn off the power switch located on the upper left side of the cabinet on the control panel.
2. Allow the system to fully depressurize before proceeding. Confirm zero pressure on the downstream gauge before loosening any filter housing.
3. 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.

1. Locate the pre-filter housing on the compressor air intake.
2. Remove the filter cap by twisting it clockwise.
3. Remove the old filter element.
4. Wipe the inside of the filter housing with a clean dry cloth.
5. 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.

⚠ WarningConfirm zero pressure on the gauge downstream of the filter bowls before removing any bowl. Do not remove filter bowls under pressure.

1. Verify the gauge after the filter bowls reads 0 PSIG before proceeding.
2. Unscrew the filter bowls by turning them counter-clockwise.
3. Once removed, rinse any debris from the bowls with warm water.
4. Dry the bowls thoroughly with a clean dry cloth.
5. Replace the old O-rings with the new ones provided in the kit.
6. Using a Phillips-head screwdriver, remove the particulate filter element and replace it with the new element from the kit.
7. Remove the coalescing element by turning it counter-clockwise by hand. Replace with the new element in reverse order.
8. 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)

1. Locate the Filter Change Reset button (F2) on the electrical panel.
2. Press and hold F2 for 10 seconds.
3. The display will return to normal run status, confirming the timer has been reset.

Panasonic FP-e Controller (Older Units)

1. If the display shows "LOCK," press and hold the Mode Select Button to unlock the controller.
2. Press the Mode Select Button until the System Mode Indicator displays "S" (Switch mode).
3. Press and hold Button 0 (Filter Change Reset) for 7 seconds.
4. An audible beep and a display of "reSet" confirm the 1,000-hour filter timer has been reset.

ℹ NoteThe filter timer can also be reset using the filter reset button on the electrical panel inside the cabinet. Both the panel button and the PLC button perform the same reset function on Panasonic-equipped units.

Step 5 — Reassemble and Verify

1. Replace the front cover on the cabinet.
2. Restore power by turning on the power switch. You should hear the air compressor start and the system will resume nitrogen production.
3. Check all filter bowl connections for leaks once the system is back up to pressure.
4. 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

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