CAIRE HELiOS Plus, Техническое и сервисное руководство

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HELiOS Portables Technical Service Manual • PN 20562190 Rev E
26
HELiOS P
or
tables
Troubleshooting & Repair Procedures
XI
Symptom Probable Cause Corrective Action
4) Liquid leaks from the
QDV poppet after filling
a) Ice crystal preventing the QDV
from closing properly.
Engage and disengage the portable onto the reservoir several
times to dislodge the ice crystal. Always be sure that the male
and female QDVs are wiped clean and dry before filling.
b) Dirty or damaged QDV poppet Replace the QDV assembly (RP17)
5) Liquid leaks from the
vent valve tube/outlet
a) Vent valve is not fully closed Ensure that the vent valve lever is fully in the closed position.
b)
The portable has been trans-
ported or laid in an improper
operating position
Return the portable to an upright or acceptable operating posi-
tion and allow several minutes for stabilization.
c) Vent valve is frozen open
Allow the portable to warm until the vent valve can close.
After the warm up, allow up to 60 minutes for the portable to
stabilize and build pressure before operating.
d) Faulty vent valve Replace the vent valve (RP15)
6) Excessive venting from
relief valves (hissing
sound)
a)
The portable has been trans-
ported or laid in an improper
operating position
Return the portable to an upright or acceptable operating posi-
tion and allow several minutes for stabilization.
b) Saturation pressure too high.
Inspect the saturation pressure of the reservoir used for filling.
Allow at least 30 minutes at no flow for the portable to satu-
rate properly.
c) Relief valve frozen open
Allow the portable to warm and thaw. Attempt to re-fill the
portable.
d) Faulty relief valve
Test the relief valve (RP7 & RP8) and replace if necessary
(RP10 & RP11)
e) Partial or complete loss of
vacuum
Conduct the NER test (RP22) and return the unit to CAIRE,
inc. if necessary.
7) No Flow
a) Portable is empty
Check the contents indicator/level gauge and fill the portable
if needed.
b) Flow control valve turned off Ensure the flow control knob is not in the off (“0”) position.
c) Nasal cannula kinked or discon-
nected
Ensure proper nasal cannula functionality and positioning
d) Saturation pressure is too low
Inspect the saturation pressure of the reservoir used for filling.
Allow at least 30 minutes at no flow for the portable to satu-
rate properly.
e) Leak in the system
Perform a leak check on the plumbing (RP2). Repair leaks as
necessary.
Table 6 (cont.)