521-OM0108.88
Copyright
2009 Nalco Company
6-7
Technical Help
(630) 305-CHEM
3D TRASAR
5500 - Installation & Operation Manual
6.4
3D TRASAR Bio-Control/3D TRASAR Bio-Shock Start-Up
Procedure (con’t)
• If using 3DTBR10, feed into the main recirculating line
with an acid/heat compatible
injection quill P/N 231-P4611.88
(Hasteloy). Heat is generated at the point of injection of
the product into the recirculating line. Use injection quill, check valves and pumps capable of
withstanding the heat and the low pH. High recirculating water flow rates will assist in dissi-
pating the heat. Use injection quill with sufficient length to discharge product into the center
of the recirculating line. Do not feed product close to the walls of the recirculating pipe
which may result in increased localized corrosion, and product deposit.
• 3DTBR10 will precipitate solids unless installed into pipes with adequate water flow
(5 gpm minimum). Do not feed into potential dead legs. Product will precipitate unless there
is adequate flow and dilution at the point of injection
.
Oxidant Feed Pump
• Connect oxidant feed pump to control relay 4 (see Section 2 for wiring details).
• Verify oxidant injection point is located sufficiently far enough from the bio-reporter injec-
tion point so that oxidizing biocide is thoroughly mixed. Preferred location is downstream of
bio-reporter injection point.
• Do not feed oxidant directly upstream of skid/fluorometer sample stream inlet.
• Do not feed oxidant into a low flow/mix or dead-leg or intermittent (e.g. make up water
header) portion of system.
• Manually operate pump from the keypad to verify operation (see Section 4.10.8 for manual
relay control).
• For standard 3D TRASAR Bio-Control, set the oxidant feed pump rate, so that, if the pump
operated continuously it would deliver to the system a 0.3 ppm TRH residual.
• For 3D TRASAR Bio-Shock mode set the oxidant pump rate so that the ORP set point can
be easily achieved in the configured Ox slug feed time.
• For Towerbrom 960 applications using 3D TRASAR Bio-Shock mode: Aspecial setup
needs to be done on the Towerbrom control panel to allow the 3D TRASAR controller to
take over biocide feed. The program is compatible with Towerbrom feeder models ATF 500-
2, 2370-2 and 2370-10. The following setup steps are required:
• The ATF must be converted to Semiautomatic mode prior to the startup.
• Depending on the design of the control panel, the wiring from the 3D TRASAR
controller to Towerbrom shall be connected as the “Remote Start Input” listed in the
ATF manual. The Ox relay on the 3D TRASAR supplies a 60 second dry contact
closure to begin a feed cycle. ATFs that have a touch screen control panel must be
set-up to havethe entire feed cycle exceed 1 minute. Older style feeders will need to
add a special timer relay to convert the 60 second contact closure to a momentary
contact closure. Contact the NGES Help Desk for specific information on
implementing these changes.
• The ATF will dump the preprogrammed number of product dumps as entered on
control panel when in semi-automatic mode. The ATF will feed one dump of product
when in manual mode. Each dump is either two pounds or ten pounds depending
on the ATF model.
