OPTIONAL FEATURES
HeatNet Control V3 3.x
Page 72
settings should be restored. See Saving and Restoring
Settings.
To access the factory backup program, the P3
BOOT pins on the HeatNet control board need
to be shunted and the CALIBRATE/S2 switch placed in the
CALIBRATE position. The BOOT jumper is located close to
where the ribbon cable for the display plugs in. If the control is
power cycled in this condition, the factory program will
overwrite the existing running program. If in the LOAD
FIRMWARE menus, STORAGE LOCATION 0 will be an
allowed storage location. When the boot starts, remove the
shunt from the P3 jumper pins and place the Calibrate/S2
switch back in the Normal position (slide towards S2).
BOOT P3 Shunt Pins are located under the plastic cover.
Boot P3 pins are located under the cover near the ribbon cable
socket.