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25 Gallon Foam Unit Operation Manual FI-25N READ ALL INSTRUCTIONS BEFORE USING OR SERVICING THIS UNIT. KEEP THIS MANUAL IN A LOCATION THAT IS READILY AVAILABLE TO USERS AND SERVICE TECHNICIANS. Scan this code for English (Original Instructions) operation manual...
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Always flush the unit with fresh water thoroughly when switching from an alkaline to an acid or an acid to an alkaline. Model: FI-25N V20230427 • Page 2 of 8...
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If needed, install an air dryer before the unit. PROTECT THE ENVIRONMENT Please dispose of packaging materials, old machine components, and hazardous fluids in an environmentally safe way according to local waste disposal regulations Model: FI-25N V20230427 • Page 3 of 8...
Two 10 inch (25.4 cm) non-marking wheels and two 3 inch (7.6 cm) Wheel type locking casters *Flow rates given are based on chemical with viscosity of water and factory air pressure settings. Model: FI-25N V20230427 • Page 4 of 8...
Product Components Get to know the FI-25N components that you will need to use, adjust or assemble. Back plate assembly • Inside view 1. In-line strainer 2. Quick-change pump 3. Needle valve 4. Air regulator 5. Air pressure gauge 6. Check valve 7.
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Front view Back view 10. Solution tank 11. Hinged lid 12. Drain plug 13. Discharge wand 14. Discharge ball valve 15. Discharge hose 16. Needle valve 17. Air fitting 18. Suction line valve Model: FI-25N V20230427 • Page 6 of 8...
10. Open discharge ball valve to relieve remaining pressure. 11. Close ball valve after all pressure has been relieved. Store unit with discharge ball valve closed. 12. Before using unit with another chemistry, thoroughly flush with water. Model: FI-25N V20230427 • Page 7 of 8...
To service your unit, refer to the service manual which includes: • Troubleshooting procedures. • Detailed parts breakdowns and illustrations. • Part numbers of serviceable components and assemblies. Scan this code for service manual Model: FI-25N V20230427 • Page 8 of 8...
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25 Gallon Foam Unit Service Manual FI-25N READ ALL INSTRUCTIONS BEFORE USING OR SERVICING THIS UNIT. KEEP THIS MANUAL IN A LOCATION THAT IS READILY AVAILABLE TO USERS AND SERVICE TECHNICIANS. Scan this code for English (Original Instructions) service manual...
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Always flush the unit with fresh water thoroughly when switching from an alkaline to an acid or an acid to an alkaline. Model: FI-25N V20230428 • Page 2 of 13...
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• Crescent wrench (2x) • #2 Phillips head screwdriver • ⁷/16 in. (11 mm) open-ended wrench • #3 Phillips head screwdriver • Flat head screwdriver • Hose cutters • Thread seal tape • Knife Model: FI-25N V20230428 • Page 3 of 13...
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6. Replace the mixing mesh and screen into the back of the tee. Screw the stainless hose barb back into the tee. NOTE: It is recommended to use a pipe thread sealant when reinstalling the stainless hose barb back into the tee fitting. Model: FI-25N V20230428 • Page 4 of 13...
- 20 mesh SS - black bowl ¼ in. blue hose - hybrid TPE - 9 H14BL-F available per ft. ⅜ in. blue hose - hybrid TPE - 10 H38BL-F available per ft. Model: FI-25N V20230428 • Page 7 of 13...
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Stainless steel union - ¼ in. FPT Water separator - 20 CFM - ¼ in. FPT 9 WS-20CFM ports Air fitting ¼ MPT x plug - nickel-plated 10 AP14 brass WSA-20CFM* *Optional assembly sold separately Model: FI-25N V20230428 • Page 8 of 13...
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Item number Description Stainless tee ½ FPT ⅜ barb - no 5 SST12HB38 mixing material Mixing material assembly - 6 MXA- PF includes stainless mesh and screen NVA-NV14-PF SST12HB38A-MX Model: FI-25N V20230428 • Page 9 of 13...
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Bulkhead adapter - stainless - ¼ NPT 10 SSA14BKH x ¼ NPSM 11 SSSFN12 Serrated flange nut - stainless - ½ in. Air fitting ¼ MPT x plug - nickel- 12 AP14 plated brass RGA-R25-PF Model: FI-25N V20230428 • Page 10 of 13...
* Additional colors available, see datasheet for options. AKSS34: Stainless anti-kink spring for ¾ in. hose Item number Description 4 AKSS34 Stainless anti-kink spring for ¾ in. hose AKSS34 HA34BL-30 Model: FI-25N V20230428 • Page 12 of 13...
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Stainless hex nipple ½ MPT x ½ MPT 14 BVSS12 ½ in. stainless ball valve - welded nut 15 HBSS1234 Stainless hose barb ½ MPT x ¾ barb 16 SSC34 Stainless screw band clamp for ¾ in. hose Model: FI-25N V20230428 • Page 13 of 13...