VA CAPACITY EACH
VOLTAGE SECONDARY 25V
40 $48.34
Economical and stripped-down “skel- eton” type universal mount 40VA
mounts allow for direct, horizontal or vertical foot mounting.
CAT. NO. MFG. NO. VOLTAGE PRIMARY
1C910 1C911
AT40A1121 120 AT40A1139 240
VOLTAGE SECONDARY 26.5 26.5
3C101M S84Z-401 120/208/240 24 VA CAPACITY EACH
40 40 40
$38.33 $40.67 $40.03
FURNACE ELECTRONIC CONTROL BOARDS
preprogrammed functions. They use inputs and send outputs based on their programs. The programs are sequential and the board will always proceed in the sequential programmed order. Deviation from the program only occurs when input is changed, or the
outputs. The inputs are from the thermostat, and from the limits connected to the board. A change in the inputs will result in a the limit string and the board will respond by keeping the output circuits to the inducer and space blower closed, continuously inducer and space blower to reduce the temperature at the equipment)
How would we “check the board” to determine if it is OK? Assuming the board has been wired correctly and is powered, we board not react the same way when the inputs devices are reconnected, check the input devices and the connecting wiring, as the board is functioning normally) Conversely, should the board not close the outputs to the inducer motor and space blower motor, the board is malfunctioning and needs be replaced.