Refer to the specific sticker inside the battery cover for the exact switch matrix for your hardware revision.
: Insert a flat-head screwdriver into the notched area at the bottom and twist "LIGHTLY" to remove the top casing from the lower part. Wiring Entry daikin brc1c51 61 installation manual
| Feature | Daikin BRC1C51 | Daikin BRC1C61 | | :--- | :--- | :--- | | | Older SkyAir & split systems (R22/R410A) | Newer SkyAir, VRV, and modern residential units | | Display | Monochrome LCD with green backlight | Monochrome LCD with white/blue backlight | | Thermistor | Internal sensor only (optional external) | Internal + improved external sensor logic | | Voltage | 12V DC (from indoor unit) | 12V DC (from indoor unit) | | Physical size | 78mm x 120mm (same face plate) | 78mm x 120mm (same face plate) | Refer to the specific sticker inside the battery