Checker board Control Panel
13
Primary Voltage
Switch Position
Position the voltage switch to correspond to the
incoming power. When pushed to the left, the
switch is set for 90 to 130-Volt AC. When pushed
to the right, the switch is set for 180 to 260-Volt
AC. A customer-supplied transformer must be
provided for all other voltages.
Incoming Voltage, Hot In/ Hot Out
This is the primary voltage source for the board.
Acceptable voltage is 90 to 130 or 180 to 260-Volt
AC, 50 or 60 Hz, Single Phase. The hot wire
connects to the IN terminal. The OUT terminal
provides a convenient point to connect the line
voltage to other output connections that will
operate on the same voltage, such as relays.
Incoming Voltage, Neutral In/ Neutral Out
This is the neutral connection for the primary
voltage source. The primary connection attaches to
the IN side. The OUT side provides common
connections to the other output connections, such
as relays.
ON/OFF
Power to the Checker board should be ON at all
times, except while being serviced. The remote ON/
OFF provides control of the Checker board status
whether it is in standby or active mode. A typical
installation would use the motor starter pull-in coil
voltage to power the ON/OFF circuit, initiating the
active mode any time the motor starter is engaged.
Connecting one terminal to the motor starter coil
voltage and the other terminal to neutral, allows
the Checker board active mode to start and stop in
conjunction with the blower motor.
Voltage Switch
120-Volt
240-Volt
hot in/hot out
neutral in/neutral out
Incoming Voltage
