Discharge Pipe and Pressure Tank Connections 5
From
Well
Water System
Relief Valve
Pre-Charged
Tank
20
40
60
80
100
Pressure Gauge
Pressure
Switch
To Household
Water System
Pressure
Switch
Suction Pipe
From Well
Air Volume
Control
Air Volume
Control Tube
Priming Te e
and Plug
Relief Valve
Drive Pipe
To Well
Standard
Tank
20
40
60
80
100
Figure 6: Pre-charged Tank
Connections
Figure 7: Standard Tank Connections
Table I: Wiring Chart – Recommended Wire and Fuse Sizes
PRE-CHARGE TANK CONNECTION (Figure 6)
If your system uses a pre-charged tank, it should be connected to the pump
as shown in Figure 6. 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 AVC is required for a pre-charged tank; the 1/8” NPT AVC port on the
pump body should be plugged.
STANDARD TANK CONNECTION (Figure 7)
If your system uses a standard tank, connect it to the pump as shown in
Figure 7. The relief valve used with a standard tank must be capable of pass-
ing 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.
Branch Distance in Feet (Meters);
Max Fuse Wire Size AWG (mm
2
)
Load Rating 0-100 101-200 201-300 301-400 401-500
Model HP Amps Amps (0-30) (31-61) (62-91) (92-122) (123-152)
115Volts:
HNAS-50 1/2 12.2 20 12(3) 10(5.5) 8(8.4) 6(14) 6(14)
HNAS-75 3/4 14.8 20 12(3) 8(8.4) 6(14) 6(14) 4(21)
HNAS-100 1 19.2 25 10(5.5) 8(8.4) 6(14) 4(21) 4(21)
230 Volts:
HNAS-50 1/2 6.1 15 14(2) 14(2) 14(2) 12(3) 12(3)
HNAS-75 3/4 7.4 15 14(2) 14(2) 14(2) 12(3) 10(5.5)
HNAS-100 1 9.6 15 14(2) 14(2) 12(3) 10(5.5) 10(5.5)
Sealing Pipe Joints
Use only PTFE pipe thread sealant tape for making all threaded
connections to the pump itself. Do not use pipe joint compounds on
plastic pumps: they can react with the plastic in pump components.
Make sure that all pipe joints in the suction pipe are air tight as well as
water tight. If the suction pipe can suck air, the pump will not be able to
pull water from the well.
To Next Page
Loading...
Need help?
General
