Standard Tank Connection; Precharged Tank Connection - Pentair AERMOTOR VNA Serie Manual Del Usuario

Installation
Standard Tank
Air Volume
Control
(AVC)
1" Discharge
Relief Valve
AVC Tubing
Well Seal
Figure 4: Pump With Standard Tank
Pre-Charged
Pressure Tank
4 0 6 0
2 0
1" Discharge
Figure 5: Pump With Pre-charged Tank
Check Pressure With
Tire Gauge
Figure 6: Checking Tank Pre-charge
DISCHARGE PIPE SIZES
Step 1. If increasing discharge pipe size, install reducer in pump discharge
port. Do not increase pipe size by stages.
Step 2. When the pump is set away from the points of water use, the
discharge pipe size should be increased to reduce pressure losses
caused by friction.
Pressure
• Up to 100 ft run: Same size as pump discharge port.
Regulator
• 100 ft. to 300 ft run: Increase one pipe size.
• 300 ft. to 600 ft run: Increase two pipe sizes.
PRESSURE TANK INSTALLATION – DEEP WELL
AVC
Port
The Pressure Tank provides a reservoir of water under pressure and
maintains cushion of air pressure to prevent pipe hammering and possible
damage to plumbing components. When water is drawn off through house
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fixtures, the pressure in the tank is lowered and the pressure switch starts
the pump.

STANDARD TANK CONNECTION

When a standard tank is used, an air volume control (AVC) adds air to the
tank when it is needed. See Figure 4 for typical standard tank installation.
To connect AVC to pump, thread a 1/8" compression fitting into tapped
hole on the front of the pump. Cut tubing to length to reach AVC; assemble
to fitting on pump and to AVC on tank. See installation instructions provid-
ed with tank and AVC.

PRECHARGED TANK CONNECTION

When a precharged tank is used, no AVC is necessary. See Figure 5 for
8 0
1 0 0
typical precharged tank installation. A precharged tank contains a factory
provided air charge.
IMPORTANT: Your pump pressure switch is set for a 30-50 PSI range and
Pressure
requires a tank pre-charge of 28 PSI for proper operation (see Figure 6). See
Regulator
tank owner's manual. An annual check on tank charge is recommended.
Relief Valve
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6