Foamit MU-AC-15N User manual

15 Gallon Electric Fog/Mist Unit
User Manual
MU-AC-15N
MU-AC-15N-PSGN130
READ ALL INSTRUCTIONS BEFORE USING, OR SERVICING, THIS EQUIPMENT. KEEP THIS MANUAL IN A
LOCATION THAT IS READILY AVAILABLE TO USERS AND SERVICE TECHNICIANS.
English (Original Instructions)

1 Safety.......................................................3
2 Product Overview..........................................5
Product Requirements....................................... 5
Product Specifications....................................... 5
Product Components ....................................... 6
3Assembly...................................................8
4Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5Troubleshooting ............................................11
6Parts ....................................................... 13
Contents
V20200501 • Page 2 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130

1Safety
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 of 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 proper protective clothing, gloves, and
eye wear may result in serious injury such as burns, rashes, eye, throat
or lung damage and death. Always wear protective clothing, gloves, and
eye wear 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 Safety Data Sheet (SDS) associated with the chemical
solution being used 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. Never leave the unit unattended while pressurized.
Using the unit with fluid temperatures above 100°F (37.77°C) may result in scalding, burns, serious
injury or death. DO NOT use a solution with a temperature above 100°F (37.77°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 (7 bar) may result in pressure buildup, explosion,
serious injury or death. DO NOT exceed 100 psi (7 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 for five (5) minutes when switching from an alkaline to an acid or an acid to
an alkaline.
Touching damaged electrical cords (i.e.: bare wires, bare receptacles) may result in electrical shock,
serious injury or death. Always inspect the electrical cords and extension cords for damage before
connecting the unit to the power supply. DO NOT touch a damaged electrical cord, or extension cord,
that is connected to the power supply.
Operating the air compressor in wet weather or in wet conditions may result in electrical shock,
serious injury or death. Always place the unit (air compressor) in an area away from the misting
direction. DO NOT touch the air compressor, electrical or extension cords if your hands or feet
are wet.
V20200501 • Page 3 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
WARNING
!

Servicing, or modification, of 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 pumps life. The air must be filtered, clean, dry and
free of moisture. If needed, install an air dryer before the unit.
Using an excessively long or thin-wired extension cord will cause severe damage to the motor. Always use a 3-wire
extension cord that has a 3-blade grounding plug and is no more than 25 ft. long and at least 14 gauge.
Operating the air compressor motor with excessive, or insucient, electrical supply (i.e.: low voltage and/or an
overloaded circuit) can cause the air compressor motor’s overload protection system circuit breaker to trip. Refer to
the serial label for voltage and amperage requirements. Ensure the electrical supply supports the air compressor
motor’s requirements. For best results use a dedicated circuit.
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
V20200501 • Page 4 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
NOTICE

2Product Overview
* Dilution rates and flow rates given are based on chemical with viscosity of water and factory air pressure settings.
** Area covered and run time may vary based on humidity, air flow, and product used.
V20200501 • Page 5 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
Product requirements
Liquid temperature range 40-100˚F (4.4-37˚C)
Electrical requirements 120 VAC at 60 Hz, 8.5 amps (GFCI protected outlet)
Operating voltage 120 VAC
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 Electricity
Chemical pickup type Draws from pre-mixed solution
Number of products unit can draw from One product
Suction line length/diameter 3/8 in. (9.5 mm) inside diameter
Capacity 15 gallons (56.8 liters)
Discharge line length/diameter 25 ft. (7.6 m) coiled twin-line tubing with 1/4 in. (6.4 mm) outside diameter
Discharge wand/tip type Handheld double-barrel misting wand with one nozzle or Polypropylene
trigger handle with misting nozzle
Output distance 3-4.5 ft. (0.9-1.4 m)
Output volume 8.9 oz/min (263.2 ml/min) at 50 psi (3.4 bar)
Flow rate* 8.9 oz/min (263.2 ml/min) at 50 psi (3.4 bar)
Pump seals Santoprene, Viton, or Kalrez
Run time from full tank** Approx. 3.5 hours
Nozzle type Pneumatic fog nozzle
Number of nozzles 1 nozzle
Droplet size 15 microns at 50 psi (3.4 bar)
Wheel type Two 10 in. (25.4 cm) non-marking wheels
Two 5 in. (12.7 cm) casters with lock
Product specifications

1. Hinged back plate
2. Quick-change pump
3. Air regulator
4. Air pressure gauge
5. 1/4 tube x 1/4 tube quick-fit check valve
6. Suction line valve
7. In-line strainer
Product components
Before you begin get to know the MU-AC-15N and MU-AC-15N-PSGN130 components that you will need to use,
adjust or assemble.
V20200501 • Page 6 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
6
1
Back plate assembly • Inside view
7
23
4
5

9. PSG-N130 wand
10. Hinged cap assembly
11. Air inlet valve
12. Bulkhead 1/4 in. tube
13. Suction line valve
14. MGA-RAC-N130 wand
15. Drain plug
16. Air compressor bracket
17. 120V air compressor - 1HP
18. Tank
19. Air supply line
20. 25 ft. coiled tubing
V20200501 • Page 7 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
Tank assembly • Front view Tank assembly • Back view
18
19
20
14
9
17
13
16
15
11
12
10

3Assembly
1. Remove all components from packaging.
2. Place the compressor and pre-assembled bracket
into the cavity.
3. Align the holes on the compressor bracket with the
holes on the front tank sides.
4. Fasten the screws into the bracket.
5. Attach the ¼ in. blue air hose from that back of the
unit to the air compressor using the quick connect
fittings.
V20200501 • Page 8 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
2
4
4
Quick connect
fitting
5
3

4Operation
1. Follow all instructions from the chemical
manufacturer and fill the tank with a ready-to-
use solution or mix to the chemical manufacturer
instructions. Important! Do not spill the solution on
the air compressor.
2. Plug the unit in to a 120 VAC GFCI protected
power outlet.
3. Turn the power switch ON to start the air compressor.
4. Set the pressure setting to 85 psi.
5. Verify that the air shut-o valve at the trigger gun is
in the closed position and open the air inlet valve on
the back plate.
6. On model MU-AC-15-PSGN130:
Point the discharge wand in a safe direction and
open the air shut-o valve at the trigger gun.
Then squeeze the trigger handle to begin misting.
Note: Both discharge valves should be completely
open while misting.
On model MU-AC-15N:
Point the discharge wand in a safe direction and
press the red and blue discharge trigger buttons at
the same time to begin misting. Note: Both discharge
buttons should be completely open while misting.
7. On model MU-AC-15-PSGN130:
To stop misting, release the trigger handle and the
close the air shut-o valve.
On model MU-AC-15N:
To stop misting, release the red and blue discharge
trigger buttons.
V20200501 • Page 9 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
2
5
6
6
3
4
Open
PSG12 trigger
RAC-GUN-.5 red and blue buttons
Close
5

After Use Instructions
8. Flush the unit with fresh water for 5 minutes.
9. Shut o the air supply to the unit by closing the air
inlet valve on the back plate.
10. Turn the power switch OFF to shut o the air
compressor.
11. Unplug the air compressor.
12. On model MU-AC-15-PSGN130:
Open the air shut-o valve at the trigger gun and
squeeze the trigger handle to relieve any pressure
remaining in the unit.
Once pressure is relieved, release the trigger handle
and close the air shut-o valve at the trigger gun.
On model MU-AC-15N:
Press the red and blue trigger buttons to relieve
any pressure remaining in the unit. Once pressure is
relieved, release both trigger buttons.
13. Depressurize and drain the air compressor tank by
opening the ball valve on the compressor tank.
V20200501 • Page 10 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
10
11
12
9
Open
PSG12 trigger (model MU-AC-15-PSGN130)
Close
13
12
RAC-GUN-.5 red and blue buttons (MU-AC-15N)

5Troubleshooting
Issue Solution
Air passes through the
pump without cycling
• If air passes through the pump (P56) without cycling, the pump needs to
be replaced.
The solution backs up into
the air regulator
• If solution backs up into the air regulator, the check valve (CV14QF-S) needs to
be replaced.
The unit operates at a
reduced pressure
• Check the discharge tubing to ensure that there are no kinks that could obstruct
fluid flow.
• Check for proper air pressure on the air gauge and adjust the air regulator if
needed. The air regulator is factory set at 50 psi. Operating pressure is 50 psi.
• Check the air compressor (AC120V-1HP-CAT) to confirm sucient air pressure is
being supplied.
• 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 the chemical suction line and strainer for debris or damage.
Clean or replace as needed. To prevent damage to the unit, the strainer
(STR38-IL) must always be used.
V20200501 • Page 11 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130

Issue Possible cause Solution
The compressor stopped
and does not start.
Overloaded because of
motor overheating.
• Check that the main voltage corresponds to
specifications. An extension cord that is too thin or too
long can cause a voltage drop and cause the motor to
overheat. Allow the motor to cool down. use heavy duty
extension cords. ensure that the compressor is plugged
into a socket as close as possible to the consumer unit
or fuse box.
Motor windings are
burned out. • Contact Customer Support.
The motor does not start
and makes a humming
noise.
Low voltage supply to the
motor.
• Check that the main voltage corresponds to
specifications. An extension cord that is too thin or
too long can cause a voltage drop and cause the
motor to overheat. Allow the motor to cool down.
use heavy duty extension cords. ensure that the
compressor is plugged into a socket as close as
possible to the consumer unit or fuse box.
The compressor is noisy
with metallic clangs.
Compressor head gasket
broken or valve plate
faulty.
• Stop the compressor and contact the dealer.
Compressor worn or
broken piston ring • Stop the compressor and contact the dealer.
Compressor worn or
broken cylinder ring • Stop the compressor and contact the dealer.
Air Compressor
V20200501 • Page 12 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130

6Parts
V20200501 • Page 13 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
AC120V-1HP-CAT
AG100
AP25
BVB14
CST5SS-L
CST5SS
CT25
CV14QF-S
QFSOV14 DFP7
DP-A
H14BU
H14B-F
H38B-F
P56, P56K, P56V
PSG-N130
R25
QF1214
PSG12
TANK-15N- C
TANK-15NC- CATBRKT
W15
STR38-IL
HHPB3414
PVCV34FM
HBSSEL1438
PFN-N130
PFN-N130
QF1814SS
RAC-GUN-.5
RAC-GUN-N130-BRKT
MGA-RAC-N130

V20200501 • Page 14 of 14
Model: MU-AC-15N, MU-AC-15N-PSGN130
Item number Description
AC120V-1HP-CAT 120v air compressor - 1hp
AG100 1.5 in. dry model 20 dual scale gauge
AP25 Air fitting 1/4 mpt x plug-nickel-plated brass
BVB14 Air inlet valve-1/4in mpt x 1/4in mpt
CST5SS 5 in. S.S. Swivel caster with 4 in. wheel
CST5SS-L 5 in. S.S. Swivel caster with 4 in. wheel and lock
CT25 25 ft. coiled 1/4 in. poly urethane red/blue tubing
CV14QF-S 1/4 Tube x 1/4 tube chk quick fit-small
DFP7 7 Inch hinged cap assembly - includes black cap, lid flange and hinge pin
DP-A Drain plug assembly for natural portable units - includes plug and gasket
H14B-F 1/4 in. blue hose-hybrid tpe-available per ft.
H14BU 1/4 in. od blue polyurethane tubing - available per ft.
H14RU 1/4 in. od red polyurethane tubing - available per ft.
H38B-F 3/8 in. blue hose-hybrid tpe-available per ft.
HBSSEL1438 Stainless hose barb 1/4 mpt x 3/8 barb elbow
HHPB3414 Hex head poly bushing 3/4 mpt x 1/4 fpt
MGA-RAC-N130 Misting gun assembly-rac gun- PFN-N130
P56 Pump with santoprene seals - includes hose barbs, air fitting, and exhaust barb
P56K Pump with kalrez seals - includes hose barbs, air fitting, and exhaust barb
P56V Pump with viton seals - includes hose barbs, air fitting, and exhaust barb
PFN-N130 Pneumatic fog nozzle - polypropylene and kynar tip - 3.7 Gal/hr per nozzle
PSG-N130 PSG gun with PFN-N130
PVCV34FM PVC Valve 3/4 in. fpt X 3/4 in. mpt
QF14P Quick fit-1/4 mpt x 1/4 od tube-polypropylene
QF1814SS Quick fit-1/8 mpt x 1/4 od tube-stainless
QFBH14 Bulkhead 1/4in tube polypropylene
R25 Air regulator - 1/4fpt two port 1/8 fpt two port - includes filter and bowl
RAC-GUN-.5 Polypro body, twin trigger, ss lance, .5 Meter
RAC-GUN-N130-BRKT SS bracket for PFN-N130 on rac-gun
STR38-IL In line strainer-3/8 barb-epdm gasket-20 mesh SS
TANK-15N- C 15 Gallon concentrate tank natural in color
TANK-15NC- CATBRKT SS bracket for cat air compressor on tank-15nc
W15 Non-marking wheel for portable units