Branch Boxes - HEIL DLFBHC12K1A Installation Instructions Manual

TROUBLESHOOTING (CON'T)
This unit has on−board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with colored
LED lights. Table 12 explains the error codes on both.
ERRORS OF DEFINITION
Indoor unit 3 is connected
Indoor unit 4 is connected
Indoor unit 5 is connected
Indoor unit 6 is connected
Indoor unit 7 is connected
Indoor unit 8 is connected
Indoor unit 9 is connected
Indoor anti-freeze protection
Inside temperature sensor error
Evaporator midway temp sensor error
Liquid pipe of Branch Boxes module temperature sensor
error
Gas pipe of Branch Boxes module temperature sensor
error
Mode conflicts
Communication error
Communication error between the main board and driving
board
Communication error between the main board and testing
board
Indoor unit gas sensor error
Indoor unit humidity sensor error
Indoor unit water full protection
Jumper terminal error
Power supply phase lack
Outdoor unit fan motor error
Refrigerant recovery mode

BRANCH BOXES

ERRORS
Branch Box
1 is connected
Branch Box
2 is connected
Branch Box 3 is connected
Indoor unit A is connected
Indoor unit B is connected
Indoor unit C is connected
Indoor unit A gas tube temperature sensor error
Indoor unit A liquid tube temperature sensor error
Indoor unit B gas tube temperature sensor error
Indoor unit B liquid tube temperature sensor error
Indoor unit C gas tube temperature sensor error
Indoor unit C liquid tube temperature sensor error
328 014525201
Table 12—Malfunction Status Table Outdoor Multi−zone Sizes 48−56
MAIN CONTROL DISPLAY FOR OUTDOOR UNIT
YELLOW LED
Branch Box 1
Branch Box 2
Branch Box 3
Table 13—Branch Box
INDICATING LED FLASHING TIMES
YELLOW LED
Flash 1 time
Flash 2 times
Flash 3 times
Specifications subject to change without notice.
RED LED
Flash 10 times
Flash 11 times
Flash 12 times
Flash 13 times
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit A
Indoor unit B
Indoor unit C
GREEN LED RED LED
Flash 1 time
Flash 2 times
Flash 3 times
Flash 1 time
Flash 2 times
Flash 3 times
Flash 4 times
Flash 5 times
Flash 6 times
INDOOR UNIT
CODE
GREEN LED
Flash 7 times
Flash 8 times
Flash 9 times
E2
F1
F2
b5
b7
E7
C5
Fo
INDOOR UNIT OUTDOOR UNIT ERROR
ERROR CODE
b7 b7+ indoor unit address
b5 b5+ indoor unit address
b7 b7+ indoor unit address
b5 b5+ indoor unit address
b7 b7+ indoor unit address
b5 b5+ indoor unit address
TESTING
BOARD
CODE
E2
F1
F2
b5
b7
E7
P6
CE
Fn
L1
E9
C5
dJ
L3
Fo
CODE
17