SECTION 2: INSTALLATION
2.10 Introduction
2.11 This manual has been compiled not only for the care and maintenance of the Welch GEMINI
Vacuum System now in your possession, but as a helpful reference and guide to prevent
operating problems, enable troubleshooting, and ensure maximum pump life.
2.20 Unpacking
2.21 Carefully remove the Welch GEMINI
™
Vacuum System from the shipping case. Preserve all
paperwork for future reference. If damage has occurred from shipment a claim must be fi led
with the carrier immediately; preserve the shipping carton for inspection by the carrier. If
you are required to communicate with your dealer of Welch Vacuum, be sure to include your
order numbers for quick identifi cation. Do not return the pump to Welch without fi rst calling for
a returned goods number.
2.30 Pump Location
2.31 Physical Location
The Aspiration/Filtration Vacuum System should be located preferably in a clean, dry, and well
ventilated area. The system should be placed where the surrounding temperature remains
between 10°C and 40°C (50°F and 104°F). Always check to insure the location chosen
is protected from direct or indirect moisture contact.
2.32 Electrical Source
GEMINI
™
pumps operate at 12 VDC. Locate the pump near a source of AC power
(115V/60Hz, 230V/50Hz) to utilize the AC power adapter. The pump may also be used
with the 12 VDC power lead plugged into a standard automotive accessory socket or other
12VDC source.
2.33 Proximity to Vacuum Application
Welch recommends that the pump be installed at the highest point within the system to prevent
possible water condensate form entering the pump. The pump should be located close to
the vacuum application system in order to maximize effi ciency.
2.34 Proximity to Ventilation
Locate pump to achieve proper ventilation of exhaust fumes, particularly if the vacuum
application evolves fumes that are dangerous or malodorous. Exhaust ventilation to a hood
is recommended for all applications that could pass organic or acid base fumes through
the vacuum pump.
5
WARNING
Do not pump fl ammable or explosive gases or vapors or operate this
pump in an atmosphere containing fl ammable or explosive gases or
vapors.
