Foamit FST 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
Flooded Suction Tank
FST
Operation Manual

V20240125 •Page 2 of 9Model: FST
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 open ball valves with chemical in the tank, unless the ball valves are connected to an
appropriate location for chemical discharge. Never point the discharge valves at yourself, another
person, or any object you do not want covered in chemical. Never operate unit without the lid on.
Do not use the unit if an overflow hose is not installed. If chemical flows from the overflow port, shut
down the unit immediately and correct the problem before proceeding.
Using incoming air pressure exceeding 80 psi (5.5 bar) may result in pressure buildup, explosion,
serious injury or death. DO NOT exceed 80 psi (5.5 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

V20240125 •Page 3 of 9Model: FST
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
NOTICE
Model No.: FST
Manufactured by: FOAMit
3833 Soundtech Ct. SE Grand Rapids, MI 49512 US
This device complies with Part 15 of the FCC Rules for Class B devices. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

V20240125 •Page 4 of 9Model: FST
Product Overview
Requirements
Compressed air requirements 20-80 psi (1.4-5.5 bar)
Electrical requirements 100-240 VAC at 60 Hz, 1 amp (GFCI protected outlet)
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 and electricity
Electrical operating voltage 24 VDC; Power supply included
Rated load of relay signal terminals 8A 250VAC / 8A 30VDC
Chemical pickup type Draws from concentrated, pre-mixed, or ready-to-use product
Number of products unit can draw from One product
Fluid capacity 3.5 gallons (13.2 liters)
Fill rate* Up to 2.5 gal/min (9.5 l/min)
Discharge valve type/material Polypropylene ball valve with EPDM seals
Pump seals Santoprene, Viton, Kalrez
Fluid control valve seal Kalrez
Specifications
*Flow rates given are based on chemical with viscosity of water and factory air pressure settings.

V20240125 •Page 5 of 9Model: FST
Product Components
Get to know the FST components that you will need to use, adjust or assemble.
Tank assembly • Front view
1. Overflow port
2. Cap
3. Indicator light
4. Poly ball valve
5. Air fitting
6. Power supply
7. Lid
8. E-stop
9. Prime button
10. Mounting bracket
11. Tank
1
8
9
7
5 6
10
11
2 3
4
Back view

V20240125 •Page 6 of 9Model: FST
Product Components
12. Quick-change pump
13. Controller
14. Float level sensor
15. Air regulator
16. Air control valve
17. PVC ball valve
18. Fluid control valve
Plate assembly • Without lid
12
15
16
1817
13 14

V20240125 •Page 7 of 9Model: FST
Using your unit
Installation Instructions
1. Remove components from packaging, and select
desired area to mount the unit.
2. Ensure the mounting bracket is oriented correctly,
and secure it to the wall using the provided
hardware.
Note: Use a ⁄ in. drill bit to drill holes for the plastic
anchors. Two holes should be 8 in. (20.3 cm)
apart horizontally.
3. Mount the unit by connecting the bracket located
on the back of the tank to the bracket on the wall.
4. Loosen all 4 screws and slowly remove the lid.
Note: Use caution during lid removal; light indicator
and power supply are not secured to the unit.
5. Remove indicator light and housing from parts
packages.
6. Using the included instructions, wire the indicator
light assembly to the controller and mount in a
suitable location. Wiring not included.
7. Connect one or more of the ball valves on the
underside of the unit to your existing metering
pump(s).
8. Connect a hose to the suction barb of fluid pump.
Maximum draw length is 30 ft (0.3 m).
Note: Suction hose and strainer are not included with
the unit. These can be purchased separately.
9. Connect a hose to the overflow port. Run the hose
back to your chemical source or to another location
that is suitable for chemical discharge.
10. Verify the ball valves on the underside of the unit
are in the closed position.
11. Connect compressed air supply to air inlet fitting.
12. Check to ensure the PVC ball valve is in the open
position.
13. Secure lid back to the unit by tightening all 4 screws.
3
2
7
8
9
4
11
10
12
6

V20240125 •Page 8 of 9Model: FST
Using your unit
Operating Instructions
1. Follow all instructions from the chemical
manufacturer.
2. Verify that all of the ball valves that will not be used
are closed and/or plugged.
3. Verify the cap is secured on the top of the tank.
4. Verify pump is connected to the chemical source.
5. To power the unit, plug the 24 VDC power adapter
to a 100-240 VAC outlet.
6. To activate the unit, press the PRIME button when
tank is empty. Press PRIME again if unit does not
reach the fill level within 90 seconds.
Note: The PRIME button LED will illuminate when the
tank is empty, and will turn o when product
reaches appropriate fill level.
7. When the unit is active, the pump will begin to cycle.
Note: The pump will stop cycling when product reaches
the appropriate fill level.
8. Operation cycle of the unit will be indicated by the
on-board LED lights, listed below:
9. Open the ball valve(s) that are connected to your
outputs. Any ball valves that are not connected to
an output should remain closed.
After Use Instructions
10. Before shutting down or using the unit with another
chemistry, thoroughly flush the unit with water.
11. After the unit has been completely flushed, unplug
the 24 VDC power adapter to shut down the unit.
Controller LED Color Signals
Green
Unit is active. Solution is filled to the
appropriate level (or) unit is actively filling
the tank.
Red Tank has run dry (or) error has occurred
with the unit.
6
3 85
2 9
4

V20240125 •Page 9 of 9Model: FST
Performing any maintenance with the unit connected to the air supply and/or electrical power may result in serious
injury or death. Before conducting any maintenance, always ensure that the unit has been drained and disconnected
from both compressed air and electrical power. 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, you
may wish to install a water separator before the unit.
WARNING
Maintenance
Maintaining Your Unit
Servicing Your Unit
Scan this code for
service 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
service manual
Flooded Suction Tank
FST
Service Manual

V20240125 • Page 2 of 9Model: FST
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 open ball valves with chemical in the tank, unless the ball valves are connected to an
appropriate location for chemical discharge. Never point the discharge valves at yourself, another
person, or any object you do not want covered in chemical. Never operate unit without the lid on.
Do not use the unit if an overflow hose is not installed. If chemical flows from the overflow port, shut
down the unit immediately and correct the problem before proceeding.
Using incoming air pressure exceeding 80 psi (5.5 bar) may result in pressure buildup, explosion,
serious injury or death. DO NOT exceed 80 psi (5.5 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

V20240125 • Page 3 of 9Model: FST
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, you
may wish to install a water separator before the unit.
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 connected to the air supply and/or electrical power may result in serious
injury or death. Before conducting any maintenance, always ensure that the unit has been drained and disconnected
from both compressed air and electrical power. 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. (16 mm) open-ended wrench
• Flat head screwdriver
• Thread seal tape
• #2 Phillips head screwdriver
• #3 Phillips head screwdriver
• Hose cutters
• Knife
NOTICE
WARNING
Service Guide
Maintaining Your Unit
Servicing Your Unit
Model No.: FST
Manufactured by: FOAMit
3833 Soundtech Ct. SE Grand Rapids, MI 49512 US
This device complies with Part 15 of the FCC Rules for Class B devices. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

V20240125 • Page 4 of 9Model: FST
If your unit is not operating properly, try using these troubleshooting tips:
Troubleshooting Your Unit
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 • Check for low air pressure or a clog in the fluid lines.
Air passes through the pump
without cycling
• The pump needs to be replaced.
Tank will not fill and/or pump
not cycling
• Check to ensure PVC ball valve is in the open position.
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.
Indicator lamp is on and
on-board LED is red
• Unit is under filled. Inspect the unit with the following instructions:
1. Check for an empty chemical source tank.
2. Press the PRIME button to prime the tank.
Indicator lamp is flashing and
on-board LED is red
• Unit error. Inspect the unit with the following instructions:
1. Unplug the unit and inspect components. Plug back into power source.
2. If error persists, replace level sensor.

V20240125 • Page 5 of 9Model: FST
Tank Assembly
TN K A- 4N - FST:
4 gallon natural tank assembly - black lid - includes fill and
overflow ports, 3x outlet valve, and wall mounting bracket
Item number Description
1HBEL1010 Hose barb elbow - 1 in. MPT x 1 in.
barb - polypropylene
2BVPVC14MF PVC ball valve - ⁄ NPT to ⁄ FNPT -
EPDM seal
3HHPB1214 Hex head poly bushing ⁄ MPT x
⁄ FPT
4HBEL1438 Hose barb elbow ⁄ MPT x ⁄ hose
barb
5BVPP12MF Polypropylene ball valve - ⁄ NPT
to ⁄ FNPT - EPDM seal
6JC35B-P Black 3.5 Inch cap - polypropylene
7B142012-VS ⁄-20 x ⁄ in. bolt - stainless - truss
head Phillips - Vibra-Seal
8BRKT-TPL Wall mounting toe plate bracket
9TNK-4N-FST Tank - 4 gal natural - FST 6
9
8
54
3
1
2
7

V20240125 • Page 6 of 9Model: FST
Item number Description
1PBS-ESTP Push button emergency
stop switch - panel mount
2WRHN-ESTP Wire harness for PBS-ESTP
3PBSA-24V-NLTCH
Push button switch assembly
24v LED switch and wire
harness - non latching
4AP56
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
5CTRLR-FST Controller for FST
6R25
Air regulator - two ¼ in. FPT
ports - two ⅛ in. FPT ports -
includes filter and bowl
7AG100 Air gauge - ⅛ in. NPT - 100
PSI dry model
8ACV14-24VDC-MLX Air control valve - 24 VDC -
with molex connector
9FCVA-FST
Fluid control valve assembly
⁄ in. NPT - 24 VDC - Molex
connector - includes
mounting hardware
10 TB14BL-PU
⁄ in. od blue tube -
polyurethane - available
per ft.
11 PL-TN K4 - F ST Plate for FST TNK-4
12 HBB38AP14 Hose barb adapter ⁄ MPT
to AP14
13 PS120VAC-24VDC-1.5A
Plug-in voltage transformer
120 VAC input - 24 VDC
output - 1.5 A output
Plate Assembly
PA-FST:
Plate assembly for FST units - Santoprene pump
Additional plate assembly pump options:
PA-FSTK: Kalrez pump
PA-FSTV: Viton pump
4 5 6 7
8
1
131211
910
32

Item number Description
1FCV38-24VDC-MLX
Fluid control valve - ⁄ in.
NPT - 24 VDC - with Molex
connector
2H38CL-CB
⁄ in. id clear clearbraid hose
PVC - available per ft. - max
100 ft. section
3SSC38 Stainless screw band clamp
for ⅜ in. hose
4HBEL1438 Hose barb elbow ⁄ MPT x ⁄
hose barb
5BRKT-FCV38 Bracket for mounting FCV38
solenoid - stainless
6FW4MM
M4 flat washer - stainless -
4.3 mm id x 9.0 mm od x
0.7 mm thk
7LN4MM Locknut - M4 - stainless -
nylon insert
V20240125 • Page 7 of 9Model: FST
Plate Sub-assemblies
FCVA- FST:
Fluid control valve assembly ⁄ in. NPT - 24 VDC - Molex
connector - includes mounting hardware
FCVA-FST
1 2 3 4 5
67

Item number Description
1SEL14M Stainless elbow ⁄ in. MPT x
⁄ in. MPT
2ACV14-24VDC-MLX Air control valve - 24 VDC -
with Molex connector
3QF14P Quick fit - ⁄ MPT x ⁄ od tube
polypropylene
4R25
Air regulator - two ¼ in. FPT
ports - two ⅛ in. FPT ports -
includes filter and bowl
5AG100 Air gauge - ⅛ in. NPT - 100
PSI dry model
6HBSSEL1438 Stainless hose barb ¼ MPT
x ⅜ barb elbow
7SSC38 Stainless screw band clamp
for ⅜ in. hose
8H3 8B L- F ⅜ in. blue hose - hybrid TPE
available per ft.
9HBB38AP14 Hose barb adapter ⁄ MPT to
AP14
V20240125 • Page 8 of 9Model: FST
Plate Sub-assemblies
RGA-R25-FST:
Regulator assembly for FST units - includes air gauge,
plug, air control valve, quick fit, fittings, hose, and air fitting
RGA-R25-FST
1
2
8
9
3
6
7
5
4

V20240125 • Page 9 of 9Model: FST
Additional Components
Item number Description
1B142012-VS ⁄-20 x ⁄ in. bolt - stainless -
truss head Phillips - Vibra-Seal
2IL24V-HSG-RD Indicator light housing - red 24v
LED - no bulb
3IL24V-BLB Indicator light bulb - 24v
4FLS-TNK4-HRS Float level sensor for TNK4 -
with Hirose connector
5FW1420-LG
Flat washer for ⁄-20 bolt - large
stainless - 0.28 in. id x 0.75 in.
od x 0.05 in. thk
6B14201 ⁄-20 x 1 in. bolt - stainless -
truss head Phillips
7TNK-4N-LID-FST Tank - 4 gal natural - FST lid
2
3
41
7
5 6