Lennox @DNOVA 2mAC ADVANCED CONTROLLER Installation, Operating And Maintenance page 11

PROGRAMMING PARAMETERS AND THEIR MODIFICATION
setting the default parameters
Pressing the button alarm on start up saves the default parameters
in the EEPROM. During this operation the message dF is
displayed.
copying data from the key to the machine's eePRoM
With the power disconnected from the µAC, insert the key in
the relative connector.
Powering the machine while keeping the
programs the machine's parameters with the values of the data
contained in the programming key. During this operation the
message ce is displayed, and, in the case of errors, ceee.
copying data from the machine's eePRoM to the key
Pressing the enter and button together on start up allows the
key to be programmed with the machine's parameters. During
this operation the message ec is displayed, and, in the case
of errors, ecee.
Adjusting LcD contrast
The contrast of the display can be adjusted to suit the effective
angle of viewing. Pressing the
time increases the value, vice-versa,
button pressed
5 Sec.
enter and button at the same
alarm and decreases it.
Important warning
After having modified any parameters which alter the
machine's configuration (number of compressors,
presence of valve, etc.), the alarm delays or compressor
times may vary as a consequence; in order to have
correct operation immediately, it is recommended to
reset the regulator by disconnecting the power supply. In
addition, such selections must be made with the actuators
disconnected, so as to avoid unwanted activation of the
latter.
IOM / @DNOVA-µAC-0907-E - Page 9