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KELCO T20 Installation & Programming Instructions
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Contents
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Advanced FunctionsThe T20 timer includes a set of advanced functions that extend the capability ofthe timer well beyond basic loss of flow protection. The advanced functions aredirectly accessible by moving beyond the more basic start-up and run-on timerspreviously described. There follows here a detailed description of each of theadvanced functions. Advanced functions can be used singularly or in combina-tion with other advanced functions as well as with the start-up and run-on timers.Some advanced functions conflict with others and the T20 timer will automaticallystep over conflicting functions based on your progressive selections.Pre-Start Delay TimerOn moving into the advanced functions section of the T20’s menu you are firstpresented with the option to include a pre-start delay time. The pre-start delaytimer delays the starting of the pump for a selectable period. It can be set fromzero to 240 seconds (4 minutes) in 1 second increments. If you choose to usethis timer the actual starting of your pump will be delayed by whatever delay youset this timer to. Each time the T20 is switched on it boots up but prevents theactual starting of the pump for the set period. As soon as the set time has elapsedthe pump will start and run normally. The pre-start timer can be used to allowperipheral equipment time to boot up. For example, some VS drives require afew seconds to stabilise and the T20’s pre-start timer can hold off the starting ofthe pump until the system has stabilised. The pre-start timer can also be used tostage or stagger the starting of multiple pumps. If you want to use the delayedstarting function press the up or down buttons to display “YES” and then press the(P) button. You will then be able to enter your required delay period using the upand down buttons. The range of adjustment is zero to 240 seconds in 1 secondincrements. When you have entered your required time press (P) to move on tothe next function.24 |
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