aermotor VNA2 Serie Manual De Instalación Y De Operación página 11

Operation
4 0
2 0
Figure 14A: Open Regulator Valve
4 0 6 0
2 0
Figure 14B: Watch for Pressure Gauge
to Flutter
4 0
2 0
Figure 14C: Close Regulator Valve
until Pressure Stabilizes
Gases
rise to
surface
Ejector
Pipe strap or
wire to hold
pipe sleeve
Tail
pipe
Foot
valve
Pipe
sleeve
Pipe
cap
Figure 15: Gas/Air Control in Well
Step 4. Once unit has primed and pressure stabilized, slowly open (turn
6 0
8 0
1 0 0
Step 5. Pump may draw well down far enough at this point to lose its
Step 6. Check system by alternately opening and closing faucets in the sys-
8 0
1 0 0
Step 7. There are conditions of deep well operation when the regulator
HOW TO HANDLE A GASEOUS WELL
In some areas well water contains gases which must be allowed to escape
before the water is used. To deliver gas-free water suspend a pipe, closed at
the bottom and open at the top, so that it surrounds the suction pipe inlet.
(See Figure 15). Since the gases rise in the well casing, the water sucked
down through the pipe and into the pump suction is free of gas. This type
6 0
of well must be vented to the outside of any enclosure.
8 0
1 0 0
AIR CONTROL IN FLOWING WELLS
Flowing wells or wells with little or no drawdown, could create a special
problem in air control in the operation of your standard tank system.
In such cases, a pre-charged tank (which needs no air control) is
recommended.
2876 0697
counterclockwise - Figure 14A) regulator valve until pressure falters
(pressure gauge needle flutters; pump may become noisy - see
Figure 14B). At this point, close (turn clockwise) regulator valve
slightly until pressure stabilizes. This setting provides maximum
flow (Figure 14C).
prime. If so, close regulator valve until pressure is stable throughout
pumping cycle. Close faucets and allow pump to pressurize tank
and shut off.
tem. With faucets open , pressure will drop until pump starts; with
faucets closed, pressure will build up until pump shuts off.
valve may be completely open without any faltering of pressure. In
this case, operate pump with regulator valve open.
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