HOW TO INSTALL THE FEED PUMP
AND TOTAL TOWER IN A COOLING TOWER

THIS INSTALLATION DOES NOT REQUIRE TOWER SHUTDOWN

(1) Move the TOTAL TOWER drum to a location close to the system circulating pump.

(2) With the assistance of the equipment operator, select a TOTAL TOWER injection point on the discharge side of the circulating pump. insert a "T" in the pressure gauge assembly. Do not move the gauge to make this installation until the valve between the water line and the gauge has been securely closed. Connect the plastic tubing to the "T." Replace the pressure gauge, but do not reopen the shutoff valve at this time.

(3) Set the Feed Pump on the drum head, or mount it on the wall about 8 inches above the drum. Connect the siphon tube and insert it into the drum. Connect the discharge tubing from the Tower Tender to the injection fitting. Now, reopen the shutoff valve.

(4) With the assistance of the maintenance man, locate the tower bleed-off assembly. Insert the electric bleed valve, followed by the 4 gpm flow regulator. Wire the electric bleed valve to the Feed Pump. Electrical services should be performed by the electrician, and should conform to local code.

(5) Plug the line cord into a 110 volt outlet. Use electrical service outlet that is energized only when the tower circulating water pumps are operating. You are now ready to add TOTAL TOWER, as needed, to control scale and corrosion and also ready to bleed water from the system, as required, to maintain control over the total solids in the circulating water.

                    1. Initial Charge

                        To bring the tower water up to operating strength, put in TOTAL TOWER at the rate of 2.5 pints per 1000 gallons of system water. Estimate 10 gallons per rated ton.
                        EXAMPLE: 300 tons = 3000 gallons = 7.5 pints.

                        This can be done at the tower basin or a holding tank. Get the operator to help choose the most convenient location. After two hours of operation, test the tower water for TOTAL TOWER content. The reading should be between 240 and 300 ppm.

                    2. Interim Setting for the Feed Pump

                        To maintain the proper level of TOTAL TOWER in the tower water, set the Feed Pump according to this chart:

                        RATED CAPACITY                           240          200          150          100          50
                        of the Tower                                   Tons        Tons        Tons        Tons       Tons
                        TIMER SETTING                                  5              4              3              2              1

                        Instruct the operator how to run daily tests for TOTAL TOWER level. Furnish a Test Kit and Log Sheets to record these readings. Tell him you will return in several days to inspect the Log Sheet and make recommendations based on the data recorded.

                    3. Continuous Maintenance Feed Rate

                        On your first service call, review the Log Sheet. Confirm the figures by personally running the following tests before making any "fine tuning" adjustments in the Feed Pump.

TOTAL TOWER Titration

Scale and corrosion protection are performed most effectively when the TOTAL TOWER content of the tower water is between 240 and 300 ppm. If your test result is lower than 240 ppm, or over 300 ppm, you may have been given an inaccurate estimate of the tower tonnage. The Feed Pump knob can be moved higher or lower than its present position, according to your new information.

EXAMPLE: If you originally set the knob at Position #2 or a two-ton tower, and your first TOTAL TOWER test shows 180 ppm, the Tower Tender knob should be moved up to between Positions #2 and #3. If a change of setting is indicated, return within a week and repeat the tests for confirmation.

Molybdenum Testing

This is in the treatment as a corrosion inhibitor and is easy to analyze using our instruments. The molybdenum is in the water at the specification level when the treatment level is correct.

4. Teach The Operator To Make Daily Tests

The full cooperation of your customer and his staff is the difference between success and mediocrity. Run through the two tests with these people. Tell them how to enter the results on the Log Sheet. Urge them to phone you for service when the Log shows any deviation from normal. Explain that prompt service at this time will prevent problems in the future.