MasterCraft 312222 User Manual

Discharge Pipe and Pressure Tank Connections 6
PRE-CHARGED TANK CONNECTION (Figure 4)
Step 1. Install two tees in the pump discharge port (see Figure 4). The pipe
size must be at least as large as the discharge port.
Step 2. Run a pipe or reinforced hose from one arm of the first tee to the
port on the pre-charged tank.
Step 3. Connect the other end of the discharge tee to your plumbing system.
Step 4. Check the pre-charge of air in the tank with an ordinary tire gauge.
The pre-charge should be 2 PSI less than the cut-in setting of the
pump’s pressure switch. The pre-charge is measured when there is
no water pressure in the tank. Your new pump has a 20/40 PSI
switch, so adjust the tank pre-charge pressure to 18 PSI.
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yyoouurr jjeett ppuummpp..
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STANDARD TANK CONNECTION (Figure 5)
Step 1. Install one tee in the pump discharge port (see Figure 5).
Step 2. Run a pipe from the pump discharge port to the inlet port of your
tank. The pipe size must be at least as large as the discharge port.
Step 3. Remove the 1/8" NPT pipe plug from the pump Air Volume Control
(AVC) port (see Figure 5). Run tubing from the pump’s AVC port
(see Figure 5) to the port on the AVC mounted on the tank. See
instructions provided with tank and AVC for details. AVC port loca-
tion will vary, depending on your pump model (see exploded view,
Page 11).
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yyoouurr jjeett ppuummpp..
PPlleeaassee ggoo ttoo PPaaggeess 77 aanndd 88 ffoorr eelleeccttrriiccaall hhooookkuupp..
To Household
Water System
Pressure
Switch
Priming
Tee and
Plug
Check
Valve
From Well
To Household
Water System
Pressure
Switch
From
Well
Air Volume
Control
Air Volume
Control Tube
Pump
Priming Tee
and Plug
1865
0
Figure 4: Pre-charged Tank Connections
Figure 5: Standard Tank Connections
Sealing Pipe Joints
Use only Teflon tape or Teflon based joint compounds for
making all threaded connections to the pump itself.
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ppiippee jjooiinntt ccoommppoouunnddss oonn ppllaassttiicc ppuummppss::
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.
For parts or assistance, call Customer Service at 1-877-455-5508

MasterCraft 312222 Specifications

General

Brand	MasterCraft
Model	312222
Category	Water Pump
Language	English