Yale ERC40VH Manual page 33

Valve Threshold Function 1 "A" Direction Prompt Icon
Valve Threshold Function 1 "B" Direction Prompt Icon
Valve Threshold Function 2 "A" Direction Prompt Icon
Valve Threshold Function 2 "B" Direction Prompt Icon
Valve Threshold Function 3 "A" Direction Prompt Icon
Valve Threshold Function 3 "B" Direction Prompt Icon
Valve Threshold Function 4 "A" Direction Prompt Icon
Valve Threshold Function 4 "B" Direction Prompt Icon
This icon points to the * key and is used for valve calibration in this submenu.