Amico NFPA Triplex RVL Modular Stack Mount - Manual (Page 17)

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C. Piping and Control Components
The piping control components for each vacuum pump shall include:
1. Flexible inlet and outlet couplings.
3. Inlet and outlet shut-off valves.
3. Exhaust drip leg.
4. A means of removing the vacuum pump for service or replacement without interruption to the
system.
Piping and control components shall have corrosion resistance at least equivalent to that of brass or copper and
have a rating consistent with the pressure and flow requirements of the system. Exhaust piping from the vacuum
pump to the outlet shall be made of non-flammable, corrosion-resistant materials.
The exhaust of the vacuum pumps shall be outdoors to avoid possible contamination of the intake system (e.g. the
medical air intake system) and the exhaust shall be:
a. Located at least 10 ft (3 m) away from any door or operable window, door, air intake, or
other openings in buildings.
b. At a level different from air intake.
c. Where prevailing winds, adjacent buildings, topography, or other influences that would not
divert the exhaust into occupied areas or prevent dispersion of the exhaust.
d. The end of the exhaust shall be turned downward, screened, and otherwise be protected
against the entry of vermin, debris, or precipitation by screening fabricated or composed of
a non-corroding material.
e. Each pump can be isolated by manual or check valve, blind flange, or tube cap to
prevent open exhaust piping when pump(s) are removed for service and consequent flow
of exhaust air into the room.
D. Control Panel and Alarm Sensors
The control system is U.L. labeled. The control system provides automatic lead/lag sequencing and automatic
alternation of pumps based on first-on/first-off principle with provision for simultaneous operation if required.
Automatic activation of reserve unit, if required, will activate an audible alarm as well as a visual alarm on the
display screen.
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