Not required., BRC7EA628 Infrared remote control including receiver (Heat Pump)., BRC1H519W User-friendly wired remote controller with premium design (White)., BRC1H519S User-friendly wired remote controller with premium design (Silver)., BRC1H519B User-friendly wired remote controller with premium design (Black)., BRC1E53A/B/C Wired remote control with full-text interface and back-light., BRC1D52 Standard wired remote control with weekly timer., BRC2E52C Simplified remote control (with operation mode button)., BRC3E52C Simplified remote control (without operation mode button)., DCC601A51 Intelligent Tablet Controller., DCS601C51 Intelligent Touch Controller., DCM601A51 Intelligent Touch Manager., EKMBDXA DIII-net modbus interface., KLIC-DI KNX interface., DMS502A51 BACnet interface., DMS504B51 LowWorks interface., KRP4A53 Wiring adapter for external monitoring/control via dry contacts and setpointcontrol via 0-140Ω., KRP2A52 Wiring adapter for external central monitoring/control (controls 1 entiresystem)., DTA104A61 External control adapter for outdoor unit (installation on indoor unit)., DTA114A61 Adapter for multi-tenant applications (24 V a.c. PCB power supply interface)., BRP7A51 Digital input adapter., UK.FB2 Installation box/ mounting plate for adapter PCBs, KRCS01-1 External wired temperature sensor., K.RSS External wireless temperature sensor., EKEWTSC Wire harness required for connection to K.RSS.