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1
HELiOS Portables Technical Service Manual • PN 20562190 Rev E
24
HELiOS P
or
tables
Troubleshooting & Repair Procedures
XI
Table of Contents
A.
Introduction ----------------------------------------------------------------------------------------- 20
B.
Troubleshooting Charts ------------------------------------------------------------------------21–27
C.
Repair Procedures
RP1 General --------------------------------------------------------------------------------- 31
RP2
Liquid Leak Detector Test ----------------------------------------------------------- 31
RP3A
Emptying the Unit (H300) ----------------------------------------------------------- 33
RP3B
Emptying the Unit (H850) ----------------------------------------------------------- 33
RP4
Cover Removal ------------------------------------------------------------------------ 34
RP5A
Front Cover R/R ---------------------------------------------------------------------- 34
RP5B
Rear Cover R/R ----------------------------------------------------------------------- 35
RP6
Contents Indicator Test -------------------------------------------------------------- 35
RP7
Primary Relief Valve Test ----------------------------------------------------------- 36
RP8
Secondary Relief Valve Test -------------------------------------------------------- 37
RP9A
Economizer Test (H300) ------------------------------------------------------------- 38
RP9B
Economizer Test (H850) ------------------------------------------------------------- 38
RP10
R/E Valve R/R ------------------------------------------------------------------------ 39
RP11
SRV R/R ------------------------------------------------------------------------------- 39
RP12
Pressure Hold Test -------------------------------------------------------------------- 40
RP13A Liquid Withdrawl Warming Coil R/R (H300) ------------------------------------ 40
RP13B Liquid Withdrawl Warming Coil R/R (H850) ------------------------------------ 41
RP14A Gas Withdrawl Warming Coil R/R (H300) --------------------------------------- 42
RP14B Gas Withdrawl Warming Coil R/R (H850) --------------------------------------- 42
RP15A Vent Valve Assembly R/R (H300) ------------------------------------------------- 42
RP15B Vent Valve Assembly R/R (H850) ------------------------------------------------- 43
RP16
Vent Valve Disassembly & Repair ------------------------------------------------- 43
RP17A QDV Assembly R/R (H300) -------------------------------------------------------- 44
RP17B QDV Assembly R/R (H850) -------------------------------------------------------- 45
RP18
QDV Lip Seal R/R -------------------------------------------------------------------- 45
RP19
Demand Flow Control Valve Test -------------------------------------------------- 46
RP20
Demand FCV R/R -------------------------------------------------------------------- 48
RP21
Demand FCV Filter Screen Replacement ----------------------------------------- 48
RP22
Normal Evaporation Rate (NER) Test --------------------------------------------- 49
RP23
Oxygen Supply Line Quick Connect R/R ----------------------------------------- 49
RP24
Inline Check Valve R/R -------------------------------------------------------------- 49
RP25
Compression Fitting (Nut & Ferrule) Replacement ------------------------------ 50
RP26
Flexible Tubing Replacement ------------------------------------------------------- 50
RP27
CPC Connector Kit Installation ----------------------------------------------------- 50
Introduction
1. These procedures are designed to be performed only by qualified personnel with proper equipment.
2. Any failure during routine maintenance checks will refer you to this section. See troubleshooting chart for appropriate
procedure.