Condec UPC5110 - Manual (Page 25)

22 UPC5100/UPC5110 Operation & Maintenance Manual
4. Remove end of nylon tubing that goes to the SUPPLY SELECT assembly, other end stays connected to
vacuum control assembly. Install customer supplied nylon tube, with fitting on other end, into SUPPLY
SELECT assembly. Install fitting end into test port of customer supplied Standard
5. Remove section of copper tubing that goes from Chassis Mounted Regulator to cylinder tee fitting. Tighten
plug fitting (PN 69199) where copper tubing section was on regulator.
6. Input customer supplied N
2
source to regulated pressure of 250 PSI .
7. Turn Chassis Mounted Regulator shaft locknut counter-clockwise, to approximately 1/4" from top of shaft.
8. Use flat head screwdriver to rotate shaft, clockwise to increase, until Standard display reads 150-155 PSI.
9. Tighten shaft locknut, while holding screwdriver in position.
10. Shut off customer supplied N
2
source, and vent Standard.
11. Remove customer supplied nylon tube, with fitting on other end, from SUPPLY SELECT assembly and
test port of customer supplied Standard.
12. Replace end of nylon tubing that goes to the SUPPLY SELECT assembly, other end is connected to
vacuum control assembly
13. Remove plug fitting on regulator. Install section of copper tubing that goes from regulator assembly to
cylinder tee fitting.
14. Fill the cylinder to approximately 1000 PSIG and check all fittings for leaks. If there are no leaks, fill
nitrogen supply cylinder to maximum pressure. See Section 2.1 on page 4 for cylinder refilling
procedure.
15. Install panel/chassis assembly in its enclosure as described in Section 4.2.1 on page 14.
4.2.11 Pressure Limit Control (PN 58409) - Regulator Removal and Installation
Tools required: 7/16" open end wrench
hex wrench (.186")
channel locks
A/R 1/4" wide Teflon tape, (PN's 60575)
snoop, liquid leak gas detector (PN 64781)
Removal:
1. Vent any remaining nitrogen from cylinder to atmosphere. Disconnect power cord from power source.
2. Remove front panel from its enclosure as described in Section 4.2.1 on page 14, and carefully place on a
bench top.
3. Note the orientation and remove the tubing sections that connect to the regulator inlet and outlet fittings.
4. Loosen and remove regulator mounting nut from the front of panel, by using channel locks.
5. Note the orientation, then remove the regulator by sliding out from the panel rear.
6. Note the orientation of the inlet and outlet fittings in the regulator. Remove the fittings and any remnants
of Teflon tape from the pipe threads.
Installation:
1. Wrap two layers of Teflon tape on the pipe threads of each fitting and install into the inlet and outlet of
the regulator and ensure that each is oriented properly.
2. Insert the new regulator into the panel through rear of panel and rotate to proper position. Thread and
tighten the mounting nut onto the regulator body from the panel front.
3. Install the tubing sections to the inlet and outlet fittings.
4. Close PRESSURE LIMIT MONITOR by pulling regulator knob outward and turning counter-clockwise.
When closed, push knob inward.
5. Fill the cylinder to approximately 1000 PSIG and check all fittings for leaks. If there are no leaks, fill
nitrogen supply cylinder to maximum pressure. See Section 2.1 on page 4 for cylinder refilling
procedure.
6. Install panel/chassis assembly in its enclosure as described in Section 4.2.1 on page 14.