Variable speed operation – Hired-Hand System 100 Variable Speed Controller User Manual
Page 5
System 100 Variable Speed Controller
4801-2974
December 21, 1995
3
74
78
76
100
40
70
Variable Speed Operation
% Max
Speed
Degrees
Fahrenheit
Target
For this example:
Target Temp--74F, Variable Span--4 degrees, Variable Minimum--40 percent.
If temperature increases to 76 degrees, the speed of the fan will increase to 70 percent. Likewise,
another increase of two degrees (78F) would increase the speed of the fan to 100%
Stage Programs
Program A
Program B
On / Off
On / Off
Cool 2
+2 / +1
+4 / +3
Cool 1
+1 / 0
+2 / +1
Variable Speed
Span
Span
Target
Dial
Dial
Heat
-2 / -1
-3 / -1
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