This works fine for me:
# L2 NAV Knob
{ ch = 1, cc = 45, type = "enc", mode = "range", command_up = "sim/GPS/g1000n1_nav_outer_up", command_down = "sim/GPS/g1000n1_nav_outer_down" },
{ ch = 1, cc = 46, type = "enc", mode = "range", command_up = "sim/GPS/g1000n1_nav_inner_up", command_down = "sim/GPS/g1000n1_nav_inner_down" },
{ ch = 1, cc = 47, type = "cmd", mode = "range", command = "sim/GPS/g1000n1_nav12" },
Then on loupdeck live you need to set
Display Name: NAV Outer (or whatever you want)
45-LSB for Control 13 (again or whatever cc number you want just make sure the 1st line of the code above matches
Mode = CC Set
Value = 127
1-Ch. (note I use channel 1, the examples provided on github (before I saw them) are ch11 so don't get tripped up by this)
This will change the big numbers
Repeat this on another rotary dial for the small numbers, in my example I used channel 46
And then pressing the encoder button will be channel 47 (Nav will plip between nav1/nav2
On Loupedeck create an Midi actio
Action 1
47 - LBS fpr Controller 15
CC Set
127
1Ch.
Action 2
150
Delay
Action 3
47 - LBS fpr Controller 15
CC Set
0
1Ch.
Note the difference between action 1 and 3 here. The values for action 1 is 127 for action 3 it is zero