Hired-Hand System 1000 Power Curtain Eight Stage Controller - Manual (Page 11)

System 1000™ Power Curtain™ Controller 8
combinations for cable and pulleys, this controller will support only two ratios (1:1 or
1:2).
7.13. Timer
The system has a built in timer which can be used with any cooling stage. This timer
can be adjusted in many ways. The timer period can be set from one to twenty minutes.
The timer percentage (percent of timer period that the timed stage is active) may be
increased or decreased, and the timer may be used as "normal" or "expanded".
Normal timer works just like an electromechanical timer. It will operate the stage the
amount of time (timer percentage) you have selected each time the timer period resets.
(for example a ten minute timer on forty percent will operate four minutes out of every
ten minutes)
With the expanded timer option, however the timer percentage will change with outside
temperature. As outside temperature increases, the timer percentage increases to ensure
that enough fresh air is brought into the enclosure. As temperature decreases, the timer
percentage will decrease to minimize heat loss.
Hi temp 80F
Hi percent 30%
Low temp 30F
Low percent 10%
7.14. Manually Set Speed
This option allows you to experiment with the variable speed fans. If you are not sure of
the speed you want, you can test here until you find the speed you want. The controller
will ask for a percentage, then when entered, will run the fan, or fans at that percentage
and ask if you would like to change again. This feature is only operable when in selected
features. The controller will not automatically control temperature, or curtain machines
while in selected features.
7.15. Sensors for display
As you scroll through the programming features, you will notice three screens with a lot
of information in them. The screen which reads "S1:-(Some Temperature) S2:-(Some
Temperature)..." shows the temperature read by each sensor. The next two screens show
the temperature each stage (Relay) is reading. This will help to determine if your stages
are set up properly. If you expect your heater to come on with sensor one, but you have it
programmed by sensor 3 you should be able to see that error here. This feature is