Omega OTEC IECS-D Series, Technical Manual

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IECS031J3A-DWG090 / IECS036J3A-DWG105 / IECS042J3A-DWG120 / I ECS048J3A-DWG140
Temperature compensation
in heating mode is 0
℃
(Follow Me function)
Temperature
compensation in heating
mode is 2
℃
Temperature
compensation in heating
mode is 4
℃
Yellow/Green
Black
Red
ON to indicate that the operating mode judgment time
in auto mode is 15 minutes
OFF to indicate that the temperature compensation in
cooling mode t = 0
℃
(factory default)
ON to indicate that the temperature compensation in
cooling mode t = 2
℃
OFF to indicate that the operating mode judgment
time in auto mode is 30 minutes (factory default)
OFF to indicate that the open condition in the auto-open
mode of auxiliary electric heater T4 = 0
℃
(factory default)
ON to indicate that the open condition in the auto-open
mode of auxiliary electric heater T4 = 15
℃
OFF to indicate that the anti-cold air temperature value in
heating mode is 24
℃
(factory default)
ON to indicate that the anti-cold air temperature value in
heating mode is 15
℃
220-240V
～
50Hz
Power Supply
XT1
Temperature compensation in
heating mode is 6
℃
(factory
default)
Yellow/Green
Attention:Please use three core shielding wire, and the shielding layer must be connected to the of sheet metal
Indoor Main Control Board
Red
Brown
Red
Yellow/Green
Drawings are for reference only.
10500W
9000W
14000W
16000W
8
7
9
A
ENC1
Toggle
Switch
Code
Set
horsepower
Capacity
12000W
ENC1
Error or protection definition
HF
H4
E7
E9
E.9.
H0
E1
E2
E3
E43
E44
E45
E5
E6
EE
EH
Eb
EF
PL
P1
P2
P3
P4
P5
PE
L0
L1
IDU mismatching error
L (L0/L1) error occurs three times in one hour, reporting
H4, and this error is not recoverable
IDU EEPROM error
ODU EEPROM error
Wrong compressor model in EPROM
Communication error between main control
board and IR341
T1 sensor error
T2 sensor error
T2B sensor error
T3 sensor error
T4 sensor error
T5 sensor error
Voltage protection error
ODU DC fan error
Water level alarm error
TL sensor error
E6 error occurs six times in one hour,
requiring power failure recovery
PFC feedback resistance failure
Heat sinkTF high temperature protection
High pressure protection
Low pressure protection
Input current protection
Discharge temperature protection
Outdoor condenserT3 high temperature protection
EvaporatorT2 high temperature protection
Module protection is triggered
DC bus low voltage protection
DC bus high voltage protection
MCE error
Zero speed protection
Phase loss
Protection when the previous and next speed change
is > 15 Hz
Protection for a difference of > 15 Hz between the set
speed and operating speed
Detected DC bus voltage (PN voltage) < 200 VDC for
5S after power-on
Typhoon protection
Ambient temperature less than or equal to 10
℃
in
cooling mode
Communication error between IDU and ODU
E4 L2
L4
L5
L7
L8
L9
F1
P8
EP
Error
Code
Error or protection definition
Error
code
Ed ODU error