Foamit FI-5N User manual

READ ALL INSTRUCTIONS BEFORE USING OR
SERVICING THIS UNIT. KEEP THIS MANUAL IN A
LOCATION THAT IS READILY AVAILABLE TO USERS
AND SERVICE TECHNICIANS.
English (Original Instructions) Scan this code for
operation manual
5 Gallon Foam Unit
FI-5N
Operation Manual

V20230929 •Page 2 of 8Model: FI-5N
PEOPLE OR OBJECTS CAN BE HURT OR DAMAGED IF THIS UNIT IS NOT USED CORRECTLY!
Failure to read all the instructions before operating the unit may result in personal injury or death from
the improper use or the chemical solution. Anyone handling, operating or using the unit must read and
understand the instructions in the manual. The buyer assumes all responsibility for safety and proper
use in accordance with the instructions.
Using or servicing the unit without appropriate personal protective
equipment (PPE) may result in serious injury such as burns, rashes, eye,
throat or lung damage and death. Always wear PPE as indicated in the
Safety Data Sheet (SDS) when using or servicing the unit. Protect eyes, skin,
and lungs against drifting spray.
Chemical solutions may pose a health risk and death if they contact the skin or eyes, are inhaled
or swallowed. Always read and follow all chemical safety precautions and handling instructions
provided by the chemical manufacturer and the SDS associated with the chemical solution before
using the unit.
Pressure within the equipment may cause an unexpected release of the chemical solution and
cause serious injury such as burns, rashes, eye damage, throat or lung damage and death.
Always depressurize and clean the unit after each use. Release any remaining air pressure by opening
the discharge ball valve. Never leave the unit unattended while pressurized.
Using the unit with fluid temperatures above 100°F (37.8°C) may result in scalding, burns, serious injury
or death. DO NOT use a solution with a temperature above 100°F (37.8°C).
Operating the unit when damaged or leaking may result in exposure to chemical solutions, serious
injury or death. Never use the unit if it is damaged or leaking.
Never point the discharge wand at yourself, another person, or any object you do not want covered
in chemical.
Using incoming air pressure exceeding 100 psi (6.9 bar) may result in pressure buildup, explosion,
serious injury or death. DO NOT exceed 100 psi (6.9 bar) incoming air pressure when operating
the unit.
Use of hydrocarbons and flammable products may result in explosions, fire and serious injury or death.
Never use hydrocarbons or flammable products with the unit.
Mixing an alkaline with an acid may result in a chemical reaction. Overheating of the mixture may
cause it to splatter caustic compounds or release hazardous fumes, gas and vapors. Always flush
the unit with fresh water thoroughly when switching from an alkaline to an acid or an acid to
an alkaline.
WARNING
Safety

Servicing or modifying this unit with parts not listed in this manual may cause the unit to operate improperly. Do not
use unauthorized parts when servicing the unit.
Use of an air lubricator before the unit may result in diminished performance and damage to the unit. Do not use an
air lubricator before the unit.
Moisture in the air lines will damage the pump and diminish the pump life. The air must be filtered, clean, dry and
free of moisture. 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
V20230929 •Page 3 of 8Model: FI-5N
NOTICE

V20230929 •Page 4 of 8Model: FI-5N
Product Overview
Requirements
Compressed air requirements 40-80 psi (2.8-5.5 bar) with 5-10 CFM (141.6-283.2 l/min)
Liquid temperature range 40-100˚F (4.4-37.8˚C)
Chemical compatibility
Chemical products used with this equipment must be formulated for this
type of application and compatible with unit materials and pump seals.
For more information on chemical compatibility, consult the manufacturer
or SDS for your product or contact our customer service department.
Power type Compressed air
Chemical pickup type Draws from pre-mixed solution
Number of products unit can draw from One product
Suction line length/diameter 3.5 ft. (1 m) hose with ⅜ in. (12.7 mm) inside diameter
Capacity 5 gallons (113.6 liters)
Discharge line length/diameter 20 ft. (6.1 m) hose, with ½ in. (19 mm) inside diameter
Discharge wand/tip type 7 in. (17.8 cm) stainless steel wand with zero tip and ball valve
Output distance 15-20 ft. (4.6-6.1 m)
Output volume 15-30 gal/min (56.8-113.6 l/min)
Flow rate* 2-2.3 gal/min (7.6-8.7 l/min)
Pump seals Santoprene, Viton, or Kalrez
Wheel type Two 4 inch (10.2 cm) non-marking wheels
Specifications
*Flow rates given are based on chemical with viscosity of water and factory air pressure settings.

V20230929 •Page 5 of 8Model: FI-5N
Product Components
Get to know the FI-5N 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. Tee assembly
8. Back plate thumb nuts
1
2 3 4
6
7
8
5

V20230929 •Page 6 of 8Model: FI-5N
Tank Assembly
9. Handle
10. Solution tank
11. Cap
12. Discharge wand
13. Discharge ball valve
14. Discharge hose
14. Discharge wand
15. Needle valve
16. Air fitting
Front view Back view
9
13 14
11
10
12
16 15

V20230929 •Page 7 of 8Model: FI-5N
Using your unit
Operating Instructions
1. Following all instructions from chemical manufacturer,
fill the solution tank with pre-mixed solution.
2. Verify cap is securely tighted.
3. With the discharge ball valve in the closed position,
plug an air line into the air fitting.
4. Slowly open the discharge ball valve to begin
foaming. Discharge ball valve should be completely
open while foaming.
5. While the unit is running and discharging product,
adjust the needle valve as needed to regulate the
wetness or dryness of the foam following the steps
below:
a. Close needle valve completely in clockwise
direction.
b. Open needle valve in counter-clockwise direction
3 complete turns.
c. Continue to open needle valve in ¼ turn increments,
allowing 30 seconds between adjustments, until
desired consistency of foam is achieved.
6. Close the discharge ball valve to stop foaming.
After Use Instructions
NOTE: For proper handling and disposal procedures
refer to chemical SDS.
7. Solution should be removed from unit after each use.
This can be done in two ways:
a. Unthread drain plug from front of tank and drain
solution into approved location.
b. Place discharge wand into approved container to
transfer remaining solution. Turn the needle valve to
the wet setting and activate unit until all solution has
been flushed from the system.
8. After solution has been removed, disconnect air line
from the air fitting.
9. Open discharge ball valve to relieve remaining pressure.
10. Close ball valve after all pressure has been relieved.
Store unit with discharge ball valve closed.
11. Before using unit with another chemistry, thoroughly
flush with water.
2
3
46
5

V20230929 •Page 8 of 8Model: FI-5N
Performing any maintenance with the unit pressurized, and connected to the air supply may result in serious injury or
death. Always ensure that the unit has been depressurized, and disconnected from the air supply before conducting
any maintenance. Servicing or modifying this unit with parts not listed in this manual may cause the unit to operate
improperly. Do not use unauthorized parts when servicing the unit.
To keep your unit operating properly, periodically perform the following maintenance procedures:
• Inspect the pump for wear and leaks.
• Inspect all hoses for leaks or excessive wear.
Make sure all hose clamps are in good condition and
properly secured.
• Replace the filter located within the air regulator as
needed. Clean by unthreading the air regulator bowl
from the air regulator.
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.
• Check the suction line and strainer for debris.
Clean as needed.
• Drain your air compressor tank on a regular basis
to help extend pump life. An air source with a high
moisture content will accelerate pump wear.
Note: If your air source has a high moisture content,
install a water separator to the air fitting on the backplate.
WARNING
Maintenance
Maintaining Your Unit
Servicing Your Unit
Scan this code for
service manual

5 Gallon Foam Unit
FI-5N
READ ALL INSTRUCTIONS BEFORE USING OR
SERVICING THIS UNIT. KEEP THIS MANUAL IN A
LOCATION THAT IS READILY AVAILABLE TO USERS
AND SERVICE TECHNICIANS.
English (Original Instructions) Scan this code for
service manual
Service Manual

PEOPLE OR OBJECTS CAN BE HURT OR DAMAGED IF THIS UNIT IS NOT USED CORRECTLY!
Failure to read all the instructions before operating the unit may result in personal injury or death from
the improper use or the chemical solution. Anyone handling, operating or using the unit must read and
understand the instructions in the manual. The buyer assumes all responsibility for safety and proper
use in accordance with the instructions.
Using or servicing the unit without appropriate personal protective
equipment (PPE) may result in serious injury such as burns, rashes, eye,
throat or lung damage and death. Always wear PPE as indicated in the
Safety Data Sheet (SDS) when using or servicing the unit. Protect eyes, skin,
and lungs against drifting spray.
Chemical solutions may pose a health risk and death if they contact the skin or eyes, are inhaled
or swallowed. Always read and follow all chemical safety precautions and handling instructions
provided by the chemical manufacturer and the SDS associated with the chemical solution before
using the unit.
Pressure within the equipment may cause an unexpected release of the chemical solution and
cause serious injury such as burns, rashes, eye damage, throat or lung damage and death.
Always depressurize and clean the unit after each use. Release any remaining air pressure by opening
the discharge ball valve. Never leave the unit unattended while pressurized.
Using the unit with fluid temperatures above 100°F (37.8°C) may result in scalding, burns, serious injury
or death. DO NOT use a solution with a temperature above 100°F (37.8°C).
Operating the unit when damaged or leaking may result in exposure to chemical solutions, serious
injury or death. Never use the unit if it is damaged or leaking.
Never point the discharge wand at yourself, another person, or any object you do not want covered
in chemical.
Using incoming air pressure exceeding 100 psi (6.9 bar) may result in pressure buildup, explosion,
serious injury or death. DO NOT exceed 100 psi (6.9 bar) incoming air pressure when operating
the unit.
Use of hydrocarbons and flammable products may result in explosions, fire and serious injury or death.
Never use hydrocarbons or flammable products with the unit.
Mixing an alkaline with an acid may result in a chemical reaction. Overheating of the mixture may
cause it to splatter caustic compounds or release hazardous fumes, gas and vapors. Always flush
the unit with fresh water thoroughly when switching from an alkaline to an acid or an acid to
an alkaline.
V20230929 • Page 2 of 12Model: FI-5N
WARNING
Safety

Servicing or modifying this unit with parts not listed in this manual may cause the unit to operate improperly. Do not
use unauthorized parts when servicing the unit.
Use of an air lubricator before the unit may result in diminished performance and damage to the unit. Do not use an
air lubricator before the unit.
Moisture in the air lines will damage the pump and diminish the pump life. The air must be filtered, clean, dry and
free of moisture. 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.
Performing any maintenance with the unit pressurized and connected to the air supply may result in serious injury or
death. Always ensure that the unit has been depressurized and disconnected from the air supply before conducting
any maintenance. Servicing or modifying this unit with parts not listed in this manual may cause the unit to operate
improperly. Do not use unauthorized parts when servicing the unit.
Most repairs on the unit can be performed with the following tools:
• Crescent wrench (2x)
• / in. (11 mm) open-ended wrench
• Flat head screwdriver
• Thread seal tape
• #2 Phillips head screwdriver
• #3 Phillips head screwdriver
• Hose cutters
• Knife
To keep your unit operating properly, periodically perform the following maintenance procedures:
• Inspect the pump for wear and leaks.
• Inspect all hoses for leaks or excessive wear.
Make sure all hose clamps are in good condition
and properly secured.
• Replace the filter located within the air regulator as
needed. Clean by unthreading the air regulator bowl
from the air regulator.
• Check the suction line and strainer for debris.
Clean as needed.
• Drain your air compressor tank on a regular basis
to help extend pump life. An air source with a high
moisture content will accelerate pump wear.
Note: If your air source has a high moisture content,
install a water separator to the air fitting on the backplate.
See Page 7for more details. (Back plate assembly)
V20230929 • Page 3 of 12Model: FI-5N
NOTICE
WARNING
Service Guide
Maintaining Your Unit
Servicing Your Unit

If your unit is not operating properly, try using these troubleshooting tips:
Troubleshooting Your Unit
V20230929 • Page 4 of 12Model: FI-5N
Issue Solution
Air regulator bowl or air filter
has debris such as water, oil, or
rust particles
• Clean by unthreading the air regulator bowl from the air regulator.
Pump is cycling improperly • The needle valve is open too far. Close and readjust the needle valve as
described in the operation section.
• Ensure proper foaming chemical and concentration are being used.
Air passes through the pump
without cycling
• The pump needs to be replaced.
The solution backs up into the air
regulator bowl
• The check valve needs to be replaced.
Foam comes out wet, no matter
where the needle valve is
positioned
• Check for proper air pressure on the air gauge. The air regulator is factory set
at 50 psi (3.4) bar. Operating range is 40 to 80 psi (2. 8 to 5.5 bar) with
5 to 10 CFM (141.6 to 283.3 l/min).
• The check valve may need to be replaced.
• Verify correct chemical concentration is being used.
The unit operates at a
reduced pressure
• Check suction line and strainer for debris or damage. Clean or replace as
needed. To prevent damage to the unit, the strainer must always be used.
• Check the air compressor supplying the unit. If the pressure is less than 40 psi
(2.8 bar), turn o the unit until the compressor can catch up.
• If the air supply is 50 psi (3.4 bar) or above, check the air gauge, which should
read near 50 psi (3.4 bar). If the air gauge reads more or less than 50 psi (3.4
bar), adjust the pressure by turning the knob on the top of the
air regulator.
• Check if the stainless steel mixing mesh is plugged. Remove and clean it by
following the instructions below:
1. Verify the unit is not plugged into an air supply and then relieve all stored
pressure in the unit by turning the ball valve to the open position.
2. Remove discharge hose from hose barb on back of the unit.
3. Open back plate assembly and hold stainless tee with wrench to remove
hose barb from tee fitting.
4. Remove the screen and the mixing mesh from inside the tee fitting.
5. Clean any particles from the mixing mesh and the screen. If the mixing
mesh has a lot of foreign particles in it, make sure the suction strainer is
still in place.
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.

V20230929 • Page 5 of 12Model: FI-5N
Item number Description
3JC35B
Black* 3.5 in. one-way vented cap
polypropylene - includes EPDM
gasket and check valve
4TNK-5N-HNDL Handle for 5 gallon tank
5PTAB-TNK5N Tab for TNK-5N handle - HDPE
6TNK-5N 5 gallon natural tank
7HBSS1238 Stainless hose barb ½ MPT x ⅜
barb
Tank Assembly
TNKA-5N-BK:
5 gallon natural tank assembly - black* lid - includes handle,
wheels, and backplate thumb nuts
BPTNA:
Back plate thumb nut assembly - includes bolt, thumbnut,
and tether
Front view
* Additional colors available, see datasheet for options.
Item number Description
1BST1420118-VS ¼-20 x 1 ⁄ in. set bolt - stainless -
Vibra-Seal
2TN1420 ¼-20 thumb nut - brass insert -
assembled with tether
CSTA-5WHL:
5 in. caster wheel - includes bolt and washers
Item number Description
8B51618214-HH ⁄-18 x 2 ⁄ in. bolt - stainless -
hex head
9CST5-WHL Wheel - polypro - for CST5SS and
CST5SS-L
10 FW3816
Flat washer for ⁄-16 bolt -
stainless - 0.41 in. id x 0.88 in. od x
0.05 in. thk
3
2
8
9
10
6
1
4
5
BPTNA
7
CSTA-5WHL

V20230929 • Page 6 of 12Model: FI-5N
Item number Description
1AP56
Pump with Santoprene seals -
includes hose barbs, air fitting,
and exhaust barb
BP56K
Pump with Kalrez seals - includes
hose barbs, air fitting, and
exhaust barb
CP56V
Pump with Viton seals - includes
hose barbs, air fitting, and
exhaust barb
2NV14 Needle valve - ¼ in. NPT -
includes black knob
3R25
Air regulator - two ¼ in. FPT
ports - two ⅛ in. FPT ports -
includes filter and bowl
4AG100 Air gauge - ⅛ in. NPT - 100 PSI
dry model
5CV38-AP
Check valve - ⅜ in. barbs - PVC
body - Hastelloy spring - Teflon
ball - white
6SSC38 Stainless screw band clamp for
⅜ in. hose
7SST12HB38A-MX
Stainless tee assembly - ½ in.
FPT x ⅜ in. barb - includes
mixing material and screen
8STR38-IL In-line strainer - ⅜ barb - EPDM
gasket - 20 mesh SS - black bowl
9H14 BL- F ¼ in. blue hose - hybrid TPE -
available per ft.
10 H38BL- F ⅜ in. blue hose - hybrid TPE -
available per ft.
Back Plate Assembly
PA-PF12:
Plate assembly for portable foam units with ½ in. hose -
Santoprene pump
Additional plate assembly pump options:
PA-PF12K: Kalrez pump
PA-PF12V: Viton pump
Inside view
1 2
8 9 10
3
4
6
7
5

V20230929 • Page 7 of 12Model: FI-5N
Back view
2
3
5
4
6
9
10
1
7
8
Item number Description
1NV14-HNDL Black knob for needle valve
2SSSFN12 Serrated flange nut - stainless - ½ in.
3SSA14BKH Bulkhead adapter - stainless - ¼ NPT x
¼ NPSM
4AP14 Air fitting ¼ MPT x plug - nickel-plated
brass
5FW12NPT Flat washer for ⁄ in. NPT - stainless -
0.88 in. id x 1.5 in. od x 0.05 in. thk
6HBSS1212 Stainless hose barb ½ MPT x ½ barb
Back Plate Assembly
PA-PF12:
Plate assembly for portable foam units with ½ in. hose -
Santoprene pump
Additional plate assembly pump options:
PA-PF12K: Kalrez pump
PA-PF12: Viton pump
Item number Description
7SN1414 Stainless hex nipple ¼ MPT x ¼ MPT
8SSU14 Stainless steel union - ¼ in. FPT
9WS-20CFM Water separator - 20 CFM - ¼ in. FPT
ports
10 AP14 Air fitting ¼ MPT x plug - nickel-plated
brass
Optional Components
WSA-20CFM:
Water separator assembly - 20 CFM - ¼ in. FPT ports -
includes air plug and union fittings
*Optional assembly sold separately
WSA-20CFM*

V20230929 • Page 8 of 12Model: FI-5N
Item number Description
1HBSSEL1438 Stainless hose barb ¼ MPT x ⅜ barb
elbow
2NV14-HNDL Black knob for needle valve
3NV14 Needle valve - ¼ in. NPT -
includes black knob
4HBSS1438 Stainless hose barb ¼ MPT x ⅜ barb
5SSC38 Stainless screw band clamp for
⅜ in. hose
Back Plate Sub-assemblies
NVA-NV14-PF:
Needle valve assembly for portable foam units -
includes hose barbs, and screw band clamps
SST12HB38A-MX:
Stainless tee assembly - ½ in. FPT x ⅜ in. barb -
includes mixing material and screen
Item number Description
6SST12HB38 Stainless tee ½ FPT ⅜ barb - no
mixing material
7MXA- PF Mixing material assembly -
includes stainless mesh and screen
1
6
2
3
7
4
NVA-NV14-PF
SST12HB38A-MX
5

V20230929 • Page 9 of 12Model: FI-5N
Item number Description
1HBB14P ¼ in. hose barb - brass - for G57/P56
air fitting with o-ring
2EC14 Oetiker clamp for ¼ in. hose
3H14 BL- F ¼ in. blue hose - hybrid TPE -
available per ft.
4HBSSEL1814 Stainless hose barb ⅛ MPT x ¼
barb elbow
5SSC38 Stainless screw band clamp for
⅜ in. hose
6H38BL- F ⅜ in. blue hose - hybrid TPE -
available per ft.
7HBSSEL1438 Stainless hose barb ¼ MPT x ⅜ barb
elbow
8R25
Air regulator - two ¼ in. FPT ports -
two ⅛ in. FPT ports - includes filter
and bowl
9AG100 Air gauge - ⅛ in. NPT - 100 PSI
dry model
10 SSA14BKH Bulkhead adapter - stainless - ¼ NPT
x ¼ NPSM
11 SSSFN12 Serrated flange nut - stainless - ½ in.
12 AP14 Air fitting ¼ MPT x plug - nickel-
plated brass
Back Plate Sub-assemblies
RGA-R25-PF:
Air regulator assembly for portable foam units - includes air
gauge, pump barb, hose, bulkhead fittings, and air plug
1
2
3
4
89
5
6
7
10 11 12
RGA-R25-PF

Item number Description
1 A HB5638 Hose barb for P56 pump - EPDM o-ring
BHB5638K Hose barb for P56K pump - Kalrez
o-ring
CHB5638V Hose barb for P56V pump - Viton
o-ring
2STR38-IL In-line strainer - ⅜ barb - EPDM gasket
- 20 mesh SS - black bowl
3SSC38 Stainless screw band clamp for ⅜ in.
hose
4H38BL- F ⅜ in. blue hose - hybrid TPE - available
per ft.
5HBSS1238 Stainless hose barb ½ MPT x ⅜ barb
V20230929 • Page 10 of 12Model: FI-5N
Suction Assembly
SCTNA-PF-TNK5:
Suction assembly for portable foam units - includes hose,
in-line strainer, and pump hose barb - for Santoprene pump
Additional suction assembly options:
SCTNA-PFK-TNK5: Portables with Kalrez pump
SCTNA-PFV-TNK5: Portables with Viton pump
SCTNA-PF-TNK5
1
3
5
4
2

V20230929 • Page 11 of 12Model: FI-5N
Hose Assembly
HA12BL-20:
Hose assembly - 20 ft. of ½ in. blue* hose - includes ferruled
hose barb
Item number Description
1HBSS1212 Stainless hose barb ½ MPT x ½ barb
2SSC12 Stainless screw band clamp for ½ in. hose
3H12B L- F ½ in. blue* hose - hybrid TPE - available
per ft.
Item number Description
4AKSS12 Stainless anti-kink spring for ½ in. hose
* Additional colors available, see datasheet for options.
AKSS12:
Stainless anti-kink spring for ½ in. hose
HA12BL-20
1
4
3
AKSS12
2

V20230929 • Page 12 of 12Model: FI-5N
Wand Assembly Options
SSWA12:
Stainless wand assembly for ½ in. hose - ¼ in. outlet
SSWA1210-ST:
Stainless wand assembly for ½ in. hose - 10 in. stainless
wand - ST80100SS spray tip
Item number Description
6ST80100SS Spray tip - 80 degree - 10.0 GPM -
stainless - ½ MPT
7W1210FM Stainless wand - ½ in. MPT x ½ in. FPT -
10 in. long
8BVSS12 ½ in. stainless ball valve - welded nut
9HBSS1212 Stainless hose barb ½ MPT x ½ barb
10 SSC12 Stainless screw band clamp for ½ in. hose
PWA1210-ST:
Poly wand assembly for ½ in. hose - 10 in. poly wand -
ST80100SS spray tip
Item number Description
11 ST80100SS Spray tip - 80 degree - 10.0 GPM -
stainless - ½ MPT
12 PW12F10 ⁄ in. FNPT and ⁄ in. FNPT wand - black
polypropylene - 10 in. long
13 SN1212 Stainless hex nipple ½ MPT x ½ MPT
14 BVSS12 ½ in. stainless ball valve - welded nut
15 HBSS1212 Stainless hose barb ½ MPT x ½ barb
16 SSC12 Stainless screw band clamp for ½ in. hose
Item number Description
1W147 Polished - SS wand ¼ MPT toe - 7 in. long
2HHSB1214 Hex head stainless bushing ½ MPT x
¼ FPT
3BVSS12 ½ in. stainless ball valve - welded nut
4HBSS1212 Stainless hose barb ½ MPT x ½ barb
5SSC12 Stainless screw band clamp for ½ in. hose
16
15
3
8
13
2
7
12
4
10
9
14
1
6
11
5