61
Operation
Troubleshooting guide.
Problem
number
Problem
Possible cause
Action
(continued)
12
13
(continued)
LL probe fault
ML probe fault
(continued)
Improper water level
changes inside tank
Water in tank
oscillates or jumps
Over boiling or
foaming of water in
tank.
Low conductivity
water supply
Humidifier
overtemperature
thermostat
Humidifier interlock
cover switch
Probes
Improper water level
changes inside tank
Wiring between control cabinet and
humidifier exceeds the recommended 50
foot limit.
Check fill and drain plumbing
installation.
Back pressure from dispersion system,
distance, elbows, restrictions.
No P trap installed on tank and/or
plugged.
Poor maintenance, tank needs cleaning.
Chemical used to clean tank not
recommended, drain and rinse tank
thoroughly.
100 µs/cm minimum. Add salt.
Measure zero Volt A.C. from probes to
ground when water is in contact with
probes.
Reset manual thermostat switch
Thermostat switch not wired
Switch not wired
Install humidifier cover.
Adjust switch for proper closure.
Clean probe tips.
Verify proper wiring of probe system.
Shielded type wiring is not
recommended
Probe wiring routed with high voltage
wiring.
Wiring between control cabinet and
humidifier exceeds the recommended
15.25 m limit.
Check fill and drain plumbing
installation.
More on next page ...
Operation:
Troubleshooting guide
VL3-IOM-0301-METRIC.pdf 65
11/19/2009 9:22:40 AM
Summary of Contents for Vapor-logic3
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