37
ENGLISH
Explanation
Terminal No.
Input / Output
AC/DC
Maximum
allowable current
A
Power
L, N
Input
AC
2.5 A
B
Operation check
B1, B2
Contact output
-
0.5 A
C
Alarm
B3, B4
Contact output
-
0.5 A
D
Water pump
B5, B6
Contact output
-
0.5 A
E
Booster heater
B7, B8
Contact output
-
0.5 A
F
3Way valve 1
B9 ~ B11
Output
AC
0.5 A
G
3Way valve 2
B12 ~ B14
Output
AC
0.5 A
H
2Way valve
B15 ~ B17
Output
AC
0.5 A
I
AC 230, AC 24 V Thermostat
B19 ~ B26
Input
AC
0.5 A
J
Indoor temperature sensor
1,2(1,2)
Input
DC
1 mA
K
Temperature sensor for water tank
7,8(3,4)
Input
DC
20 mA
L
Solar pump
13,14(5,6)
Input
AC
10 mA
M
External control
16,17(7,8)
Input
DC
1 mA
N
Smart grid
19,20(9,10)
Input
DC
1 mA
O
Communication cable (RS485)
F1, F2
Input , Output
DC
10 mA
P
Wired remote controller
V1
Output
DC
210 mA (per each
controller)
V2
Grounding
-
-
F3, F4
Input, Output
DC
10 mA
Q
Flow switch
F/S
Input
DC
1 mA
❋
( ) : Hydro unit HT
❋
For instruction regarding on wiring power, communication and wired remote controller, refer to "Connecting power and
communication cable" chapter.
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