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SETTING THE CONTROL (CONT.)
CONTROLS WITH A FIXED DIFFERENTIAL
The indicator (B) points to the temperature at which the contacts
open.
To set the control:
Use a screwdriver in the adjusting slot (A) on the front of the
control to rotate dial until the desired temperature at which
the contacts will open is positioned directly under the
indicator (B).
CONTROLS WITH ADJUSTABLE DIFFERENTIAL
The movable indicator points to the temperature at which the
contacts open. The fixed indicator points to the temperature at
which the contacts close. The difference between these two
indicators is the differential.
To set the control:
1. Use a screwdriver in the adjusting slot (A) on the front of the
control to turn the dial so that the fixed indicator (B) points
to the temperature at which the contacts will close.
2. Turn the differential adjusting screw (C) until the movable
indicator (D) points to the temperature at which the contacts
will open.
“B” Fixed indicator
(cut-in point)
“C” Differential
adjusting screw
“D” Movable indicator
(cut-out point)
“A” Adjusting
slot
“B” Fixed
indicator
“A” Adjusting
slot