RTD Interfaces

RTD products are available exclusively from Daikin, contact your local Daikin sales office for details.

For UK customers without an account with Daikin, RTD products are available through Gallant Air Conditioning

RTD Interfaces

RTD-10 Daikin Control Interface

The RTD-10 is a monitoring and control interface for Daikin VRV and Skyair ranges of air-conditioners; and VAM and VKM ventilation units. The interface is compatible with all units that have a P1,P2 remote controller network connection and allows control of upto 16 units in a single group.

Control Functions

  • HARDWIRED CONTROL. Unit control can be achieved through resistance inputs using resistor, potentiometer and volt-free contact inputs.
  • BMS INTEGRATION. Unit control can be achieved through 1-10V voltage inputs integrated with BMS control outputs.
  • HEATING INTERLOCK. Units can be interlocked with external heating systems.
  • DUTY/STANDBY. Multiple groups can be operated with rotating duty/standby with fault and high temperature alarming.
  • MODBUS CONTROL. The RTD supports RS485 Modbus-RTU Protocol for network control and monitoring. Maximum of 16 RTD-10s on a network*.
  • CUSTOM CONTROL. RTD interfaces can be supplied in custom configurations to suit specific applications.

*Additional Modbus Engineering instructions and register information is available in the RTD-NET Datasheet.

RTD-NET Daikin Modbus Interface

The RTD-Net is an RS485 Modbus-RTU interface for monitoring and control of Daikin VRV and Skyair ranges of air-conditioners; and VAM and VKM ventilation units. The interface is compatible with all units that have a P1,P2 remote controller network connection and allows control of up to 16 units in a single group. Up to 62 RTD-NETs can be placed on a single RS485 network.

Control Functions

  • GROUP CONTROL. Group control of unit settings such as Setpoint, Fanspeed, Run Mode, Louvre and On/Off State
  • KEYPAD CONTROL. Control of lock/unlock state of individual buttons on wired remote controller and the ability to limit ranges of user adjustment.
  • UNIT MONITORING. Group and individual readback of unit data including Fault Codes, Unit Temperatures.
  • VAM CONTROL. Control of VAM and VKM unit fanspeed and damper position
  • CUSTOM CONTROL. RTD interfaces can be supplied in custom configurations to suit specific applications.

RTD-HO Daikin Control Interface

The RTD-HO is a control interface for Daikin VRV and Skyair ranges of air-conditioners. The interface is compatible with all units that have a P1,P2 remote controller network connection and allows control of up to 16 units in a single group.

The RTD-HO is designed to manage hotel rooms where a volt-free contact is used to indicate room occupancy status. When the room is occupied the occupant is allowed full access to the A/C operation through a wired remote controller, with setpoints limited to the range 19 to 24 or 29 in High Temperature Mode.

When the room is unoccupied the RTD will initially operate the room to maintain minimum comfort conditions for the occupant. After 18 hours the RTD reverts to the Unoccupied state and only operates the A/C to protect the room from extreme temperatures.

The RTD-HO also supports a window switch input to prevent unit operation when the room window is opened.

RTD Interfaces - Additional files

RTD Fault Codes RTD Common Modbus Registers