Setting up a Renogy DC-DC Charger 20/40/60A for a Roamer LiFePO4 lithium battery

Once the charger is wired up, the settings for charging Roamer batteries are very simple.
The unit has some DIP switches, that need to be toggled up/down (off/on) to set the voltages.

OFF - ON - OFF - ON - OFF
UP - DOWN - UP - DOWN - UP

ON - ON - OFF - ON - OFF
DOWN - DOWN - UP - DOWN - UP