RTD Interfaces

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


Daikin RTD Brochure

RTD Product Brochure Click on the image to download the Daikin 2012 Control Systems Accessories Brochure for the RTD product range. Includes details of RTD-10, RTD-NET and RTD-HO.

 

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-W Daikin Control Interface

The RTD-W is a monitoring and control interface for Atherma HT hydroboxes (heating only and reversible), small inverter chillers (EWA/YQ16..64 series) and VRV heating only hydrobox. The interface is compatible with all units that are operated using a BRC21 remote controller network connection and allows control of up to 16 units in a single group.

RTD-RA Daikin Control Interface

The RTD-RA is a monitoring and control interface for the Room Air-conditioner range of air-conditioning units. The interface is compatible with the indoor units that have a S21 remote controller network connection. Control functions include:

  • STAND ALONE MODE: Allows energy-efficient operation of a Room Air-conditioner by restricting user operating ranges and unit locked off defined by volt-free contact input.
  • MODBUS SLAVE MODE: Allows control and monitoring of unit operation using RS485 Modbus commands.
  • RTD CLONE MODE: Configures the RTD-RA to duplicate the operating settings of another RTD or RTD-RA device on the RS485 network. Allows creation of group controlled devices.
  • RTD-10 DUTY/STANDBY SLAVE: Configures the RTD-RA to operate in an RTD-10 Duty/Standby network. An RTD-10 Master controlling Skyair or VRV units can be integrated with one or more Room Air Conditioners in a Duty/Standby configuration.
  • RTD-20 RETAIL CONTROL MODE: The RTD-RA can be integrated into an RTD-20 Retail Control network. The RTD-RA can be configured to operate as a User Control Zone or to operate in Clone Mode and duplicate the control settings from anther device on the network.

RTD-20 Daikin Control Interface

The RTD-20 is a monitoring and control interface for VRV and Skyair ranges of air-conditioners and VAM ventilation units. The interface is compatible with the units that have a P1,P2 remote controller network connection and allows control of up to 16 units in a single group. Control functions include:

  • RETAIL MODE: Up to 16 RTD-20s can operate as a coordinated Retail Control System. Multiple Shop Floor and User Control Zones can be controlled with global or zone level settings. Zone setpoints can be limited or locked to restrict staff control of the system. Energy Efficient unit control minimises operating costs.
  • VAM CONTROL: Advanced control of VAM Units with energy efficient operation of heat-recovery and 3 speed fan control with optional CO2 sensor speed control. Supports integration with Retail Mode.
  • AIR CURTAIN CONTROL: Advanced control of CYQ* & CYV* Air Curtains Units with energy efficient operation, Outside Air compensated operation Supports integration with Retail Mode including optional cooling interlock.
  • PARTITIONED ROOM CONTROL: Up to 4 zones can be operated as stand-alone systems that automatically group together when connecting partitions are opened.
  • ERQ MODE: The RTD-20 ERQ mode gives a linear 0-10VDC capacity control of the range of ERQ condensers for cooling and heating coils within air handling units.

RTD Interfaces - Additional files

RTD Fault Codes RTD Common Modbus Registers