Daikin DKN Plus Interface - AZAI6WSPDKC

The DKN Plus Interface enables the energy-efficient control of Daikin air conditioners by a third-party thermostat or an automation system. With this interface, third-party devices or systems can control the VRV, SkyAir, and Daikin Single/Multi-Zone indoor units through Cloud API, Modbus, BACnet™ MS/TP, or thermostat relay contacts. This interface can be commissioned with ease through the DKN Cloud North America (NA) app via Bluetooth Low Energy (BLE).

Model Compatibility:

Indoor Unit Family	Model Number	Type
VRV and VRV LIFE	CXTQ, FXAQ, FXDQ, FXEQ, FXFQ, FXHQ, FXLQ, FXMQ, FXNQ, FXSQ, FXTQ, FXUQ, FXZQ	P1P2
SkyAir	FAQ, FBQ, FTQ, FCQ, FHQ	P1P2
Single-Zone and Multi-Zone	FDMQ, FFQ	P1P2
Single-Zone and Multi-Zone	CDXS, CTXS*, FDXS, FTK*, FTKB*, FTX*, FTXB* FTXG, FTXR, FTXS, FVXS, FTXM	S21

*FTK_AXVJU, FTKB_AXVJU, FTX_AXVJU, FTXB_AXVJU and CTX_AXVJU units are not compatible.

The following indoor units do not have the S21 connection and require an additional interface adaptor (ordered separately) to
provide the S21 connector:

Indoor Unit Models	Required Interface Adaptor
FTX09NMVJU(A), FTX12NMVJU(A), FTX09WVJU9, FTX12WVJU9	KRP067A41E
FTX15NMVJU(A), FTX15WVJU9	KRP980B2E
FTXM09VVJU, FTXM12VVJU, FTXM18VVJU, FTXM24VVJU, FTXM09WVJU9, FTXM12WVJU9, FTXM18WVJU9, FTXM24WVJU9	KER087A41

Features:

Versatile interface that can integrate with smart thermostat through multiple approaches:

• Cloud API (Honeywell Home App/Cloud – Ecobee App/Cloud – Nest App/Cloud)
• Local API (integration to Daikin Color Touch (DT4272C) with firmware v4.05 - Premium Mini (D2270C) “Future”
• Modbus RTU
• BACnet MS/TP

3rd party thermostat G/Y/W (Fan/Cool/Heat) relay control through thermostat wiring

• Automatically disables thermostat relay logic when cloud API connection detected.
• Custom control logic applied to minimize the loss of the indoor unit efficiency when no cloud API, BACnet or Modbus connection detected
• Compatible Daikin thermostats: App Stat 250803400 – Value Series (TSTATD1100-2 or TSTATD1152-2) – Premium series (D4271C) – Premium Mini (D2270C) – Color Touch (DT4272C)

Easy commissioning with Bluetooth configuration App (DKN Cloud NA App)

Indoor unit control and monitoring points (for integration through cloud, Modbus, and BACnet MS/TP only)

• On/Off – Setpoint - Room temperature - Mode (Auto, Cool, Heat, Fan, Dry) - Fan speed - Louver position - Error code

Indoor unit force off by interlock control through digital input dry contact.

Controls auxiliary heater with dry contact as a secondary heat source:

• Turn on and off the auxiliary heater based on the differential (configured in App) between the setpoint and the room temperature
• Enable/Disable the auxiliary heater based on outdoor temperature (S21 IDU only)
• The user can enable the emergency heat mode from the DKN App
  • If the indoor unit has an error, the user can enable the emergency heater from the app.

Integration to home automation systems through software drivers

• Crestron
• Control4
• RTI Control
• Fibaro

Modbus RTU and BACnet MS/TP Integration

• The following points are available:

** The room temperature is writable for P1P2 indoor units only and read only for S21 indoor units.

Specifications:

Brand	Daikin
Model	AZAI6WSPDKC
Description	DKN Plus Interface
Maximum connections	1 for each S21/P1P2 indoor unit
Wiring	S21 Wire: 8.2 ft / 2.5 m (Included) P1P2 Wire: 8.2 ft / 2.5 m (Included)
Modbus RTU / BACnet MSTP communication baud rate	9600, 19200, 38400, 57600, 76800, 115200 bps (Default: 38400)
Power supply	For DKN Plus Interface: 12-16VDC from indoor unit PCB For 3rd party thermostat: 24VAC from external power supply
Contact Rating	Digital output (Aux. Heat): 1 amp. at 24VAC (Normally Open (NO)) Digital Input (Force Off): Dry contact (Configurable as NO or NC).
Dimensions	3.62 in x 3.15 in x 1.14 in / 92mm x 80 mm x 29 mm
Weight	3.24 oz / 92g
Storage temperature	-4°F to 158°F
Operation temperature	32°F to 113°F
Compliance	EMC with the standard 47 CFR Part 15B (US) EMC with ICES-003 Issue 6 standard (Canada)
Resources	Product Flyer Application Guide Daikin DKN Plus with 3rd Party Thermostat Installation Manual Engineering Manual - VRV Controls Modbus Integration Manual BACNet integration Manual Operation Manual Submittal Data Sheet Warranty Certificate