Daikin Brc1c51 61 Installation Manual -
The Daikin BRC1C51/61 is a wired remote controller used primarily for ducted and VRV air conditioning systems. The installation manual provides critical procedures for mounting, wiring, and initial configuration to ensure the system operates correctly without electrical interference. Key Installation Procedures
The installation process is divided into physical mounting and technical electrical connection: Preparation: Disconnect all power before starting work.
Separate the upper case (which contains the PCB) from the lower case using a flathead screwdriver in the designated recesses. Mounting the Lower Case:
Select a flat mounting surface and avoid over-tightening screws to prevent deforming the plastic, which can make the upper case difficult to snap back on.
Route wires through the top, rear, or bottom center outlets before securing the case to the wall. Wiring and Connection:
Terminals: Connect the remote controller terminals (P1, P2) to the corresponding terminals on the indoor unit.
Polarity: These wires are non-polar, meaning it does not matter which wire goes to which P1/P2 terminal. Cable Specs: Use 2-core sheathed vinyl cord or cable ( ) with a maximum length of 500 meters.
Noise Prevention: Keep control wiring at least 1 meter away from power lines and electronic devices (like TVs or radios) to avoid electrical noise interference. Field and Hardware Settings
After installation, specific configurations may be required:
Main/Sub Controller: If controlling one unit with two controllers, one must be set as the "Sub RC" by holding the Mode button for 4 seconds during power-up.
Hardware Jumpers: The board may have jumpers to adjust the temperature range (e.g.,
) or to activate/deactivate the "Turbo" and "Quiet" features.
Field Settings: Access the service settings menu by holding the Mode button for 4 seconds or longer to adjust "Mode No." values for specific system behaviors like group control. Troubleshooting Common Install Errors
Error Code U5: Typically indicates a communication error or failure to designate a Sub-controller when two controllers are used.
Blank Screen: Often caused by poor P1/P2 connections or damage to the PCB during installation.
Temperature Inaccuracy: Ensure the controller is not installed in direct sunlight or near heat sources, as this affects the internal sensor. daikin brc1c51 61 installation manual
For further assistance, you can refer to the official Daikin Comfort documentation or the Daikintech Quick Reference guide. Daikin Air Conditioning Fault Codes Explained [Infographic]
: Supports basic functions including ON/OFF, mode change-over (Cool, Heat, Dry, Fan, Auto), and temperature adjustment. Fan & Airflow Management : Features a Fan Speed Selector for High/Low settings and Swing Flap control to adjust airflow direction. Smart Automation : Includes a Program Timer
allowing users to schedule start or stop times up to 72 hours in advance. Maintenance Alerts : A dedicated Filter Clean Reset
button and indicator light alert users when it is time to inspect or clean the indoor return air filter. System Diagnostics Inspection/Test Operation
button allows qualified service personnel to access system modes for troubleshooting and maintenance. Advanced Comfort (Model Dependent) : Certain models feature PMV (Predicted Mean Vote) Control
, which "learns" user temperature preferences over time to automatically optimize comfort and energy costs. Installation Highlights
The installation process focuses on secure mounting and electrical safety to prevent interference: WIRED REMOTE CONTROLLER - Daikin
The Daikin BRC1C51/61 installation manual outlines procedures for mounting, wiring, and configuring the wired remote controller, focusing on securing it to a flat, dust-free surface. Key steps include separating control lines from high-voltage cables, avoiding wire pinching, and configuring field settings—such as sensor activation via the test button—to ensure accurate temperature management. For the full installation manual, visit the Daikin Manual Library. Daikin Manual User BRC1C51 61 | PDF | Air Conditioning
Daikin does not publicly provide free PDF downloads for the BRC1C51/61 installation manuals in the same way they do for residential "plug-and-play" units. These are advanced commercial wired controllers, and their installation manuals are typically bundled with the indoor unit documentation or restricted to certified Daikin installers.
However, I can provide the critical content and specifications required for installation based on the technical data for this series.
Mounting and physical installation
- Wall mounting:
- Use the included mounting plate or wall bracket; mark and drill holes using the plate as template.
- Avoid mounting on exterior walls exposed to temperature swings; avoid near air diffusers that could bias the room sensor.
- Clearance:
- Leave clearance for wiring entry and future service access.
- Wiring entry:
- Route wiring through designated knockout or cable entry; secure cable to prevent strain on terminals.
2. Included Parts (Check Box)
| Part | Quantity | |------|-----------| | Remote controller (BRC1C51 or BRC1C61) | 1 | | Installation manual (original) | 1 | | Operation manual | 1 | | Screws for back plate | 2 | | Flat-head screws for wiring cover | 2 |
Maintenance & Troubleshooting
- Routine: clean front panel with a dry cloth; do not use solvents.
- If display is blank: confirm power supply and terminal wiring.
- Communication error: verify bus wiring, address settings, and terminal tightness.
- Refer to error codes (if displayed) and indoor unit manual for corrective actions.
Appendices (recommendations)
- Appendix A — Typical wiring checklist:
- Confirm communication pair continuity and polarity
- Verify sensor wiring insulation and separation from mains
- Label each conductor at both ends
- Appendix B — Pre‑commissioning checklist (quick):
- Mounting secure, wiring complete, power on, communication OK, functional tests passed, documentation completed.
- Appendix C — Typical DIP switch/address table (example):
- Address 1: DIP1=ON, DIP2=OFF, … (confirm against specific model sheet)
Note: This paper provides a comprehensive installation overview but is not a substitute for the official Daikin installation manual and product-specific wiring diagrams. Obtain and follow the exact Daikin BRC1C51 / BRC1C61 official manual and wiring diagrams for precise terminal names, voltages, DIP switch maps, and firmware-specific instructions.
Yes, here are the direct instructions and step-by-step procedures outlined in the Daikin BRC1C51/61 installation manual. 📍 1. Selecting the Installation Location
Height: Mount at a height where the room's average temperature can be detected. Avoid Sunlight: Do not install in direct sunlight.
Avoid Heat Sources: Keep the controller away from any heat or steam sources. The Daikin BRC1C51/61 is a wired remote controller
Interference Barrier: Install the control wires at least 3.5 feet (1 meter) away from televisions, radios, and power lines to prevent electrical noise and image interference.
Moisture: Avoid moist areas where exposure to water is possible. 🛠️ 2. Mounting the Controller
Case Separation: Carefully separate the upper case from the lower case using a flat-head screwdriver inserted at the bottom clips. Backplate/Lower Case Mounting:
Route the control wire through the access hole or the top center outlet of the lower case before installing it onto the wall.
Fasten the lower case to a flat surface using the provided screws.
⚠️ Caution: Avoid over-tightening the screws to prevent the deformation of the plastic case.
Upper Case Assembly: Align the upper case with the tabs of the lower case, then press and snap it firmly into place starting from the bottom clips. Ensure no wires are pinched. 🔌 3. Wiring Connections
Terminals: Connect the control terminals P1 and P2 on the remote controller to the terminals P1 and P2 on the indoor unit.
Polarity: The P1 and P2 wire connections are not polarity sensitive, meaning they can be connected either way.
Wire Stripping: Keep double isolation up through the notch of the remote controller case.
Seal Entrances: Use field-supplied putty to securely seal the wiring lead-in hole to prevent the entry of water or insects. ⚙️ 4. System Addressing & Setup
Initial Power Up: When power is first applied, the screen will display "Connection under check. Please wait for a moment".
Main/Sub Setting: If you are using two remote controllers to operate the same indoor unit (e.g., in large rooms), you must assign one as MAIN and the other as SUB.
Field Settings: Specialized system operations (such as air filter timers or sensor offsets) can be programmed directly through the controller's field settings menu using specific mode and code combinations. Installation Manual - WIRED REMOTE CONTROLLER
The Daikin BRC1C51/61 is a wired remote controller used to manage split-system and ducted air conditioning units. Installing it involves mounting a lower case, routing control wiring to the indoor unit, and snapping the upper case into place. 1. Choosing the Installation Site Wall mounting:
Surface: Select a flat wall surface to avoid deforming the controller's lower case when tightening screws.
Environment: Avoid areas exposed to direct sunlight, moisture, or heat sources.
Interference: Keep the controller and its wiring at least 3.3 to 3.5 feet (1 meter) away from televisions and radios to prevent electrical noise. 2. Mounting the Lower Case
Open the Controller: Use a screwdriver to lightly twist and release the tabs at the bottom to remove the upper case.
Prepare Wiring Entry: Cut out the plastic at the notched areas (top center, right, or bottom) for the wiring to enter the case.
Fix to Wall: Route the wire through the chosen hole and secure the lower case to the wall using the provided wood screws or small screws. 3. Wiring and Final Assembly
Connection: Connect the control wire to the CN_WIR connector on the printed circuit board (PCB) located on the upper case.
Indoor Unit Link: Connect the other end of the wire to the indoor unit's PCB, typically at the CN_NS connector for compatible models like the FTK/FTX series.
Snap On: Align the upper case with the four tabs on the lower case and press firmly until it clicks into place. Finish: Peel off the protective sheet from the display. 4. Initial Setup
Clock: To set the time, hold the timer button for 5 seconds until the display blinks. Use the arrow buttons to adjust the minutes and day of the week, then confirm.
Test Run: Turn on the main power. The system should take about 15–20 seconds to power up, after which you can test basic ON/OFF and mode functions. Operating Manual | Daikin Comfort
Safety & Compliance
- Only qualified technicians should install and service HVAC controls.
- Follow local electrical regulations and grounding requirements.
- Dispose of packaging and electronic components per local regulations.
Part 5: Advanced Settings (Hidden Menu)
After installation, you may need to calibrate the temperature or lock the buttons. From the "Daikin BRC1C61 installation manual" supplementary sheet:
To enter Field Settings (Installer Mode):
- Press and hold the "Cancel" button (bottom right) for 4 seconds.
- Use the timer up/down to navigate modes.
- Mode 10 (Room temp adjustment): Range -2°C to +2°C.
- Mode 12 (Remote controller lock): 0 = No lock, 1 = Full lock, 2 = Partial lock (mode/temp only).
To exit, press "Cancel" twice.