Pentair AERMOTOR VNA Serie Manual Del Usuario página 10

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Operation / Maintenance
6 0
4 0
2 0
8 0
1 0 0
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Figure 11: Adjust Regulator
(See Figures 12, 13, 14)
6 0
4 0
2 0
8 0
1 0 0
Figure 12: Open Regulator Valve
6 0
4 0
2 0
8 0
1 0 0
Figure 13: Watch for Pressure Gauge
to Flutter
4 0
6 0
2 0
8 0
1 0 0
Figure 14: Close Regulator Valve Until
Pressure Stabilizes
Step 4. Once unit has primed and pressure stabilized, slowly open (turn
counterclockwise - Figure 12) regulator valve until pressure falters
(pressure gauge needle flutters; pump may become noisy - see
Figure 13). At this point, close (turn clockwise) regulator valve
slightly until pressure stabilizes. This setting provides maximum
flow (Figure 14).
Step 5. Pump may draw well down far enough at this point to lose its
prime. If so, close regulator valve until pressure is stable through-
out pumping cycle. Close faucets and allow pump to pressurize
tank and shut off.
Step 6. Check system by alternately opening and closing faucets in the
system. With faucets open , pressure will drop until pump starts;
with faucets closed, pressure will build up until pump shuts off.
Step 7. There are conditions of deep well operation when the regulator
valve may be completely open without any faltering of pressure.
In this case, operate pump with regulator valve open.
MAINTENANCE
Hazardous voltage! Can shock, burn, or cause death.
Disconnect power before working on pump or motor.
If motor is replaced, replace the shaft seal. Keep one on hand for future
use.
Be sure to prime pump before starting.
IMPORTANT: Check motor label for lubrication instructions. The mechani-
cal shaft seal in the pump is water lubricated and self-adjusting.
IMPORTANT: Drain pump when disconnecting from service or when it
might freeze.
WINTERIZING
Step 1. Precharge Tank:
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a. Remove drain plug on pump body and disconnect pressure
switch tube at regulator.
b. Remove pressure gauge to vent pump; drain pressure tank
and all piping to a point below frost line.
c. Drain any piping that may be cut off from system drain
due to check valves in pipe, etc.
Step 2. Standard Tank:
a. Follow steps 1a, b, c under "Winterizing," above.
b. Disconnect air volume control (AVC) tubing and turn AVC
180° counterclockwise. Any water in AVC will then drain
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back into tank (see Figure 15).
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Figure 15
(FIGURE 15)
Standard Tank
Rotate AVC
180 CCW
Disconnect
AVC Tube
Remove
Drain Plug
10
40
60
20
80
10 0
Remove
Gauge
Disconnect
Pressure
Switch Tube
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