Control Systems
V-70
2
2
Centralized control system
2-3. Function controller (MCM-A100)
9) Error display
No Display Description Note
1Er➔ EA
Centralized controller
↔
Function controller communication error
(no response from the centralized controller)
2Er➔ Eb
No data from indoor units to centralized controller. (Normal communication
between centralized controller and function controller)
3Er
➔
EC Indoor unit communication error
4Er
➔
Ax Indoor unit evaporator IN sensor separation
5Er
➔
Bx Indoor unit evaporator OUT sensor separation
6Er
➔
Cx Indoor unit EEV Open error
7Er
➔
Dx Indoor unit EEV Close error
8Er
➔
Fx Indoor unit evaporator IN/OUT sensor separation
9Er
➔
G2 Outdoor unit refrigerant leakage/activation failure
10 Er
➔
G3 Outdoor unit condenser sensor separation
11 Er
➔
ox Indoor unit floating switch error
12 Er
➔
qx Indoor unit room sensor error (Open/Short)
13 Er
➔
rx Indoor unit evaporator IN sensor error (Open/Short)
14 Er
➔
sx Indoor unit evaporator OUT sensor error (Open/Short)
15 Er
➔
tx Indoor unit EEPROM error
16 Er
➔
Ux Indoor unit EEPROM option error
17 Er
➔
vx Indoor unit fan operation error
18 Er ➔ Eo
Outdoor unit error which causes indoor units to stop
•
Outdoor unit sensor error (temperature/pressure)
•
EEV Open/Close 6th detection
•
Wrong 3-phase power connection/Phase missing
•
Communication error
Communication error
x : Indoor unit address
x : Indoor unit address
Ex) Evaporator IN sensor Open/Short error in indoor unit of RMC address 2
Alternating display
05-2_control systems(046~081) 3/6/08 14:02 Page 70
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