SECTION VI
UL EX-4510 12-1-01 Page 6-11
Installation
Distribution Manifold And Piping (Continued)
3. Continue piping remainder of the distribution piping,
following piping sketch and computer design complet-
ed in System Design Section. When installing a selec-
tor valve in the piping system, make certain of the fol-
lowing:
• Selector valve is installed with either a manual actu-
ator or a brass cap on the upper actuator threads.
See Component Sheet, Page 1-8 for Part Nos. of
lever actuators.
•Make certain valve is installed in the correct flow
direction.
NOTICE
All piping shall be laid out to reduce fric-
tion losses to a reasonable minimum and
care shall be taken to avoid possible
restrictions due to foreign matter or faulty
fabrication.
4. Install discharge nozzles as specified on the computer
design piping output sheet.
5. Install male end of flexible discharge bend, Part No.
427082, into each manifold inlet. Wrench tighten.
6. With cylinders securely mounted in bracket, attach
female end of flexible discharge bend unto cylinder
valve outlet.Wrench tighten.
7. If accessory piping is required, see Installing Acces-
sories, for detailed piping information.
MAIN/RESERVE SYSTEM
When piping a connected reserve system, the reserve
cylinders must be segregated from the pressure of the main
system. This is accomplished by adding check valves in the
distribution manifold. It is also necessary to install a header
vent plug on each side of the manifold. This is required
because of the addition of the check valves in the manifold.
See Figure 9.
FIGURE 9
002211
HEADER VENT
PLUG
HEADER VENT
PLUG
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