Daikin

Setting Indoor Group Address

Indoor Group Address is required for proper CoolMasterNet operation. Without Group Address Indoor unit is not visible and can not be controlled by CoolMasterNet. Group Address is set with wired remote controller. Here is a simple sequence of operations for Daikin BRCE61 wired remote controller to set Group Address.

• Press and hold Cancel button for a few seconds
  

• Scroll down to Group No. setting function and press Menu/Enter button
  

• Program Group Address and then press Menu/Enter to save address
  

Remember if Indoor unit can not see a CoolMasterNet you won't have the Group Address menu option. So make sure the CoolMasterNet is wired to F1 F2 HVAC line and powered.

KRP928A2S Autom Mode Control

To enable proper Auto mode control from CoolMasterNet of the Indoor Unit connected via KRP928A2S adapter, make sure to configure SW3 switch to GLO position:

Daikin Self-diagnostic Malfunction (Error) Codes

I n d o o r U n i t	Malfunction Code	Problem Description	Supposed Causes	Models
				RA	Sky Air	VRV	Pac kage	HRV	Chil ler	Fan Coil
	A0	External protection device activated	External protection device connected to the terminal strip T1-T2 of indoor unit is activated		V	V	V
	A1	Malfunction of indoor unit PCB	Defective indoor unit PCB External factor (Noise etc.)	V	V	V	V	V	V
	A3	Drain Level Control System Abnormality	Drain clogging, upward slope, etc Defective drain pump Defective float switch or short circuit connector	V	V	V		V		V
	A4	Malfunction of freezing protection	Shortage of water volume Low water temperature setting Defective water temperature thermistor	V	V	V	V		V	V
	A5	High pressure control in heating, freeze-up protection control in cooling	Clogged air filter of indoor unit and short circuit Defect of indoor unit heat exchanger thermistor
	A6
	A7
	A8
	A9
	AA
	AF
	AH
	AJ