UAB KOMFOVENT we reserve the right to make changes without prior notice
MOU_22-10
23
Connection Terminal Introduction:
N, L –
Power supply connection terminal 230V,1-phase, 50/60Hz.
ALARM –
Digital output 5A-250VAC or 5A-30VDC. When outdoor unit has malfunction signal is
activated.
DEFROST – Digital output 5A-250VAC or 5A-30VDC. When outdoor unit is in defrost mode is activated.
PQ –
Terminal to communication cable between controller and outdoor unit. Should not be less
than 2×0,5mm2 (shielded) (KA8243/KA8245).
S –
Communication between controller and outdoor unit (KA8140/KA8141).
Different outdoor units may have different signal terminal. Please refer tofollowing con-
nection:
E
Q
P
S1
S
S2
Q
P
Q
S
P
Outdoor unit
terminal
PCB terminal
Outdoor unit
terminal
Outdoor unit
terminal
PCB terminal
PCB terminal
Remark: If S1-Q/S2-P does not work,
then change it to S1-P/S2-Q.
TEMP1
– Anti-frozen protection sensor terminal (for KA8140/KA8141, KA8245). Please know that
temp sensor must be placed at middle of heat changer.
0-10V
–
Analog input terminal to control outdoor unit capacity.
Capacity steps:
0-0.5 V 0% (unit stopped)
0.5-1.5 V, 10 % capacity (LED display digit 1)
1.5-2.5 V, 20 % capacity (LED display digit 2)
2.5-3.5 V, 30 % capacity (LED display digit 3)
3.5-4.5 V, 40 % capacity (LED display digit 4)
4.5-5.5 V, 50 % capacity (LED display digit 5)
5.5-6.5 V, 60 % capacity (LED display digit 6)
6.5-7.5 V, 70 % capacity (LED display digit 7)
7.5-8.5 V, 80 % capacity (LED display digit 8)
8.5-9.5 V, 90 % capacity (LED display digit 9)
9.5-10.5V, 100% capacity (LED display digit 10)
Negative(0/-) and Positive(10/+) terminals can not be mixed, otherwise it may de-
stroy this control module. Signal input can not exceed 10.5VDC, otherwise it may
destroy this control module.
