PROPERLY IDENTIFY THE INLET AND OUTLET OF THE PUMP
Outlet Port
Inlet Port
WARNING:
(Model 2028 shown)
Remove Plug From Exhaust
Port Before Operating.
2.20 Electrical Power
2.21 Power Source Review
Review the power source and the voltage rating on the units serial number tag to be sure they agree in
voltage, phase and frequency. Serious damage may occur to the system if it is connected to an improper
voltage. All Welch systems must be grounded. Grounding reduces the risk of electric shock in the
event of an electrical short circuit. The plug must be plugged into an outlet properly grounded.
Consult your local electrical codes if you have doubts.
2.22 Identification Symbols
on Models:
on Model:
2025,2026 & 2027
2028
2.23 Grounding Instructions
This product should be grounded. In the event of an electrical short circuit, grounding reduces the risk
of electric shock by providing an escape wire for the electric current. This product is equipped with a
cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is
properly installed and grounded in accordance with all local codes and ordinances.
DANGER
Improper installation of the grounding plug
can result in a risk of electrical shock.
If repair or replacement of the cord or plug is necessary, do not connect the grounding wire to either flat blade
terminal. The wire with insulation having an outer surface that is green with or without yellow stripes is the
grounding wire.
Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if
in doubt as to whether the product is properly grounded. Do not modify the plug provided; if it will not fit the
outlet, have the proper outlet installed by a qualified electrician.
Model’s 202501, 202601, 202701 and 202801 are for use on a nominal 120V circuit, and has a grounding plug
that looks like the plug illustrated in Sketch A in Figure #1. A temporary adapter, which looks like the adapter
illustrated in sketches B and C, may be used to connect this plug to a 2-pole receptacle as shown in sketch B if a
properly grounded outlet is not available.
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