27
TroubleshootingProduct Manual - Perma-Cyl
®
w/ FlexFill™ Piping Option
Trouble Probable Cause Remedy
Gas supply to gas-
use equipment is too
cold. (continued)
Gas withdrawal rate from Perma-Cyl tank
exceeds the capacity of tank’s ambient
vaporizer.
1. Reduce gas withdrawal rate to within specied
parameters.
2. Install freestanding ambient vaporizer on gas
supply line in warm location or install in-line heated
vaporizer on gas supply circuit.
3. Install larger tank with greater withdrawal rate
capacity.
Routinely high tank
pressure.
Normal when little or no gas has been
used for several days.
1. None - Routine use of gas will automatically
reduce the tank pressure.
2. Gas usage must exceed NER of tank, if not,
contact gas supplier for different tank model.
Economizer function on regulator is
malfunctioning.
1. If tank is in a mixer application and the usage is
low, consider drawing gas off the vent line, as
the economizer will not work completely in non-
consistent draws.
2. Call gas service technician to clean, repair, or
replace regulator.
Tank is over-lled 1. If tank is lled to or beyond proper ll level,
pressure builds very rapidly and relief valve may
open.
2. Use gas or liquid as soon as possible to reduce
tank contents.
3. Vent tank until no liquid is coming out the vent
valve.
Pressure building function on
regulator is set too high or regulator is
malfunctioning.
1. Reduce pressure setting by turning adjustment
knob counter-clockwise to the desired pressure
setting and continuing normal gas use until
pressure drops.
2. Close PB isolation valve and carefully observe
pressure to ensure tank pressure does not drop
too low during use.
3. Call gas service technician to adjust PB regulator.
Weak or failed vacuum. 1. Observe if condensation and / or frost are present
even during periods of non-use as possible sign of
vacuum problem.
2. Call gas service technician.
Unknown. 1. Call gas service technician.
Hissing sounds or
evidence of gas
leaking near tank,
gas lines, or gas-use
equipment.
Normal for short periods of time from
some regulators and relief valves.
1. Evacuate and ventilate room or area, if necessary.
2. If possible, observe leak. If leak is not large, does
not last long, does not occur frequently and is in
well-ventilated area, no action may be needed.
If in doubt, call appropriate equipment service
technician.
3. If above combined conditions do not exist, call
equipment service technician and observe “Safety”
precautions.
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