panel:
a.
Main power switch and indicating lamp
b.
MAN-OFF-AUTO selector switch
c.
Indicating lamp for bleed-off valve
d.
120 Volt, heavy-duty, grounded duplex receptacle
e.
Conductivity controller
f.
Electric timer
g.
Accumulative counter
2.11.9
Sequence of Operation
2.11.9.1
Conductivity Controller
Shall open the bleed-off solenoid valve when the conductivity of the
cooling water rises above the set point of the controller. When the
conductivity falls below the set-point, the valve shall close.
2.11.9.2
Water Meter
Shall start the timer after a pre-set volume of make water has been
measured.
2.11.9.3
Timer
Shall turn the feed pumps on for a pre-set amount of time.
2.11.10
Piping
Provide plastic piping and fittings conforming to ASTM D 2996 for water
treatment system. Piping for feed pump suction shall contain a foot valve
and strainer.
2.11.11
Chemicals
**************************************************************************
NOTE: Select the applicable paragraphs from the
following:
**************************************************************************
[Provide sufficient chemicals to initially place system in service and make
tests.] [Provide same chemicals used for treatment at station's other
towers.]
2.11.11.1
Water Analysis
Description
Silica (Si02)
___________
Insoluble
___________
Iron and Aluminum Oxides
___________
Calcium (Ca)
___________
Magnesium (Mg)
___________
SECTION 15602N
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