Difference between revisions of "Daikin"
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| High pressure control in heating, freeze-up protection control in cooling | | High pressure control in heating, freeze-up protection control in cooling | ||
| Clogged air filter of indoor unit and short circuit<br> Defect of indoor unit heat exchanger thermistor | | Clogged air filter of indoor unit and short circuit<br> Defect of indoor unit heat exchanger thermistor | ||
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− | | | + | | Malfunction of fan motor |
− | | | + | | Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness<br> Defective fan motor<br> Defective indoor unit PCB |
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Revision as of 04:52, 27 October 2016
Contents
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.
Reading Thermostat ambient temperature instead of return air
CoolMasterNet will read ambient temperature measured by Thermostat - local wired controller (like BRC1E72) if following field settings had being done on Thermostat:
Setting 10-2 = 03 - Only the thermostat thermistor will be utilized by Indoor unit.
Setting 10-5 = 02 - Room temperature value reported to CoolMasterNet by Indoor is taken from Thermostat
KRP928A2S Auto 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 |
V | V | V | V | ||||
A6 | Malfunction of fan motor | Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness Defective fan motor Defective indoor unit PCB |
V | V | V | V | V | |||
A7 | ||||||||||
A8 | ||||||||||
A9 | ||||||||||
AA | ||||||||||
AF | ||||||||||
AH | ||||||||||
AJ |