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INSTALLATION
_kWARNIN(
Hazardous
pressure
If your system can develop more than
100 PSI pressure, install a Sears No.
2729 relieve valve in system to prevent
possibility of tank blow Ul).
NOTICE: All(;apfixe Air "lhnks except Models 391) 291 I_;N
and 390.291358 are designed to operate ill tile vertical
pusititm.
The tank is shipped from tile l_tctury with a pre charge nf
air. This system DOES NO'I' require the use of an3' outside
air charging devices such as ;tit- volume controls on jet
pumps, or bleeder orifices on suhmersible puml)s.
(_apdve Air Tanks can be connected together to increase
the SUl'q'_l} of usable water (dntv_'down). Two tanks of the
same size \\ill double the suppl 3 and three tanks will triple
thc SUl_p[} See Figtlres 8 and _) l_)r t} pleat illstallaliolaS
\\ hell tlSJl)_ a _,tiblliersiblc ptinlp, the iI]allil_>ld and sxvilch
assembly must lye installed in the pipe lille as close to tile
center of the tanks as possible. See Figures 8 and 9.
Tanks
From To Froml
Well Service Well
Pressure Switch and 27229
Relief Valve Location When
Using Submersible Pump
Tanks
/
Pressure Switch and 27229
Relief Valve Location When
Using Submersible Pump
To
Service
FIGURE 8
FIGURE 9
OPERATION
BEFORE YOU START YOUR PUMP
Your tank is facto W charged with forty (40) pounds of air
pressure. To determine pressure switch setting, see pump
owner's manual. If your pump pressure switch cut-in set-
ting is less than forty (40) pounds, the tank air pressure
MUST be reduced to this cut-in pressure switch setting
(see table). To do this, bleed air from the valve located on
top of the tank. Check pressure frequently with an accu-
rate tire pressure gauge until correct pressure has been
reached.
Conventional pump pressure switch settings on SEARS
pumps are as follows:
CUT IN/CUT OFF PRECHARGE
20/40 PSI 20 PSI
30/50 PSI 30 PSI
40/60 PSI 40 PSI
NOTICE: For years of trouble free service, check pre-
charge annually. See service hints (Page 7) for procedure.
NOTICE: Release and expel all air out of the piping sys-
tem and the water reservoir portion of the Captive Air®
Tank. This is required on new installations, pumps requir-
ing repriming and pumps that have been apart for service.
To accomplish this, open faucets farthest away from tank
and start the pump. Observe the sputtering water flow
from faucets. This is a mixture of air and water. Allow
pump to run until there is a steady air free stream of water.
()pen and close faucets repeatedly until you are sure all air
has been removed.
If air continues to remain in system, check for leaks in pip-
ing on suction side of pump system (Jet Pumps Only).
If yuu have a submersible pump, remove the bleeder ori-
fices in the pipe (just below the well seal) and replace
bleeder orifice with pipe plugs.
6
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