Both BEST CONTROL models 1 1/4” and 1” can be provided with three different factory preset cut
-in pressures. Use the appropriate guidelines below for the specific model.
A - BEST CONTROL preset cut-in pressure 22 psi model:
•
Max pressure generated by the pump must be at least 45 psi.
•
The column of water between BEST CONTROL and the highest tap must not exceed 50 feet.
•
BEST CONTROL unit operates from min 22 psi to the max pressure generated by the pump.
B - BEST CONTROL preset cut-in pressure 32 psi model:
•
Max pressure generated by the pump must be at least 55 psi.
•
The column of water between BEST CONTROL and the highest tap must not exceed 70 feet.
•
BEST CONTROL unit operates from min 32 psi to the max pressure generated by the pump.
C - BEST CONTROL preset cut-in pressure 42 psi model:
•
Max pressure generated by the pump must be at least 75 psi.
•
The column of water between BEST CONTROL and the highest tap must not exceed 90 feet.
•
BEST CONTROL unit operates from min 42 psi to the max pressure generated by the pump.
CALIBRATION
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In the event the pump pressure does not reach the value stated above, the unit will go into
Failure mode and will not restart the pump.
In the event the high of the water column exceeds the level indicated, the unit will not restart the
pump.
To overcome these problems install BEST CONTROL at a higher level in order to recreate the
above mentioned conditions, otherwise use higher cut-in pressure models.
