GRE BC3800 Instruction Manual page 6

The first digit indicates the "parameter"
The second digit(s) indicate the value of the "parameter"
This "reading mode" will be deactivated if you do not press a button for 10 sec.
By pressing ▲ or ▼ you will see parameters from 0 to F (one by one)
Make a note of each parameter (for your records.)
Wait 10 sec. and this function is deactivated (you are back to normal)
7. How to set the clock
1. In standby, press
▲ or ▼
again: minute digits will flash to indicate that they can be modified by pressing ▲
2. Press
or ▼
3. Press again for final confirmation of time setting
Once time has been set, LED display will show time when heat pump is on standby.
8. How to set timer start and timer stop
a) Press to activate 'timer start' setting: hour and minute digits will be flashing together.
b) Press again to modify the hour setting: the hour digits will flash meaning they are ready
to be modified by pressing ▲ or ▼.
c) Press again to modify the minute setting: the minute digits will flash meaning they are
ready to be modified by pressing ▲ or ▼.
d) Press to confirm setting - display will return to standby status. 'Timer start' green
indicator light will light up to show the starting time has been set.
e) Repeat the same procedure using
indicator light will light up to show the stopping time has been set.
: hour digits will flash to indicate that they can be modified by pressing
instead of to set 'timer stop'. 'Timer stop' red
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