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HELiOS Portables Technical Service Manual • PN 20562190 Rev E
29
HELiOS Portables
Troubleshooting & Repair Procedures
XI
Symptom
Probable Cause Corrective Action
14) Unit will not main-
tain acceptable pres-
sure when in use
a)
Saturation pressure is out of
specification
Inspect the saturation pressure of the reservoir used for filling.
Allow at least 30 minutes at no flow for the portable to saturate
properly.
b) Leak in the system
Preform a leak check on the plumbing (RP2). Repair leaks as nec-
essary.
c) Economizer valve faulty Test the economizer (RP9) and replace (RP10) if necessary.
15) Unit will not main-
tain acceptable
pressure in standby
mode
a)
Saturation pressure is out of
specification
Inspect the saturation pressure of the reservoir used for filling.
Allow at least 30 minutes at no flow for the portable to saturate
properly.
b) Leak in the system
Preform a leak check on the plumbing (RP2). Repair leaks as nec-
essary.
c) PRV faulty Test the PRV (RP7) and replace (RP10) if necessary.
Table 6 (cont.)
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