Tank Connection - Pentair MYERS HJ Série Notice D'utilisation

Installation

Tank Connection

Pre-Charge Tank Connection
If your system uses a pre-charged tank, it should be
connected to the pump as shown in Figure 2. The relief
valve must be capable of passing the entire pump
capacity at 100 PSI pressure.
Check the pre-charge of air in the tank with an ordinary
tire gauge. The pre-charge is measured when there
is no water pressure in the tank. Disconnect power
to the pump and drain the tank before checking the
pre-charge. Your pump has a 30/50 PSI switch, so the
tank pre-charge pressure should be 28 PSI (that is, it
should be 2 PSI lower than the cut-in pressure of the
pressure switch.
No Air Volume Control is required for a pre-charged
tank; the 1/8" NPT AVC port on the pump body should
be plugged.
Standard Tank Connection
If your system uses a standard tank, connect it to the
pump as shown in Figure 3. The relief valve used with
a standard tank must be capable of passing the entire
pump capacity at 75 PSI pressure.
Connect the Air Volume Control (AVC) tube to the
1/8" NPT AVC port on the pump body. Run the tubing
from the pump's AVC port to the AVC mounted on the
tank. See the instructions provided with tank and AVC
for details.
NOTICE Installing a check valve between the pump and
tank can cause short cycling in the following conditions:
a. Leaky foot valve
b. Long horizontal suction line
c. Air trapped in suction line
d. Wells with gaseous water
To resolve this problem you can:
a. Remove the check valve completely.
b. Move the check valve beyond the tank.
c. Change the pressure switch tap to the tank tee.
To Household
Water Piping
Pressure
Switch
Figure 2 - Pre-charged Tank Connections
To Household
Water Piping
Pump Priming Tee
with Plug or Gauge
Pressure
Switch
Figure 3 - Standard Tank Connections
7
Pump Priming Tee
with Plug or Gauge
From Well
1864 0312
Air Volume
Control
Air Volume
Control Tube
From Well
1865 0312