AFCO AF 976734 Istruzioni per l'installazione e il funzionamento - Pagina 4

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Problem
A) Foamer will not draw chemical.
B) Foam surges.
C) Foam output too wet.
D) Foam output too dry.
E) Doesn't come on when switch is turned on.
F) Comes on and runs continuously.
G) Comes on but no water through solenoid.
H) Air or solution backing up into water line.
Startup
1. Air pressure too high
Adjust air regulator slowly counterclockwise until output stabilizes.
2. Air adjustment too low
Adjust air regulator very slowly clockwise.
3. Use of an oiler in the airline will cause poor foam quality
Use only clean, dry air.
4. Not enough chemical - metering tip too small
Install larger metering tip.
5. No metering tip installed or metering tip too large
Install smaller metering tip.
6. Improper chemical
Ensure product is recommended for foaming and/or the
application.
7. Chemical tube not immersed in chemical or chemical depleted
Immerse tube or replenish
8. Foam hose kinked or hose/plumbing too short or wrong size
(See REQUIREMENTS on page 1)
9. Water pressure too low or water volume too low/inlet piping too
small
Increase water pressure or water volume. (See REQUIREMENTS
on page 1)
10. No water to the unit
Ensure that the water supply is not shut off to the unit.
11. Timer failed/Controller not set properly or malfunctioned
Replace timer. See Controller manual.
12. May have electrical problems
Ensure circuit breaker (5 Amp) has not been tripped.
Have a qualified electrician check electrical connections.
PREVENTIVE MAINTENANCE: When the unit will be out of service for extended periods, place chemical tube(s) in water and flush
the chemical out of the unit to help prevent chemical from drying out and causing build-up. Periodically check and clean chemical
strainer and replace if missing.
Printed: Thursday Jun 26th 2014
Troubleshooting Guide
AF 976734 • Vision Satellite Entryway Foam Sanitizer
Possible Cause / Solution
Possible Cause / Solution
Startup
1, 7, 8, 9, 10
1, 2, 3, 4, 6, 7, 8, 9, 10
2, 3, 4, 6, 7, 8, 9, 10
1, 5
11,12
11
10
13. Chemical check valve stuck or failed
Clean or replace.
14. Chemical strainer or metering tip partially blocked
Clean or replace chemical strainer and/or metering tip.
15. Chemical tube stretched out where tube slides over check valve or
pin hole/cut in chemical tube (sucking air in)
Cut off end of tube or replace tube.
16. Vacuum leak in chemical pick-up connections
Tighten the connections.
17. Air regulator failed allowing too much air or not enough air
Clean or replace.
18. Air check valve or air solenoid clogged or failed
Clean or replace.
19. Water solenoid clogged or failed
Clean or replace the water solenoid.
20. Chemical build-up may have formed in the body, causing poor or no
chemical pick-up
Follow PREVENTIVE MAINTENANCE instructions below, using
hot water or descaling acid. When there is no draw at all,
carefully remove fittings and soak entire body in descaling acid.
21. No backflow preventer installed
Install appropriate backflow preventer into water line.
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Maintenance
13, 14, 15, 16, 17, 19, 20
13, 14, 15, 16, 17, 19, 20
13, 14, 15, 16, 17, 18, 19, 20
17
19
21
Maintenance