Daikin Brc1c51 61 Installation Manual Jun 2026

Align the back plate horizontally on the wall or mount it to a standard electrical switch box.

Strip back the outer insulation jacket of your 2-core wire by roughly 50mm.

Cut out the plastic at the notched areas (top center, right, or bottom) for the wiring to enter the case.

Hold the case level against the wall, mark the screw holes, insert wall anchors, and screw the case into place.

Select a flat wall surface to avoid deforming the controller's lower case when tightening screws. daikin brc1c51 61 installation manual

Insert a flat-head screwdriver into the small recesses at the bottom of the controller to carefully pop the upper case off the back plate. Mount the Back Plate:

Press the to save and lock in the new settings.

Keep it clear of windows, doors, or direct air discharge from the vents.

Press the Inspection/Test Operation button once to write the data to memory. Align the back plate horizontally on the wall

Once powered on, you may need to configure "Field Settings" to tell the unit how to behave. This is done by holding the for 4 seconds. Mode No. 10: Used for setting things like filter signs.

: Control wires should be kept at least 1 meter (3.5 feet) away from TVs or radios to avoid signal interference.

Pass the 2-core wire through the center hole of the lower case.

Look at the back of the front circuit board assembly before snapping it into place. Hold the case level against the wall, mark

Do not over-tighten the screws. Over-tightening deforms the back plate, which prevents the upper casing from snapping secure, leaving the control buttons misaligned. Step 3: Environmental Sealing

: Features a clear display for operation mode, fan speed, and centralized control status (indicated by a specific icon when managed by a master controller). Maintenance Alerts

: Connect the remote controller terminals (P1, P2) to the corresponding terminals on the indoor unit.

The remote controller display will activate. For the first 1 to 2 minutes, the display will flash or show a filtering icon. This indicates the system is performing an initial automatic communication check.

If you are controlling multiple indoor units (up to 16) with a single BRC1C51/61 controller: