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BUTTON/SWITCH
POSITION
S1
-
S2
1
CONEC-
CON-
FUSE
TION
TACT NO.
NO.
NO.
1
X19
2
-
3
1
2
X20
-
3
4
1
2
X21
-
3
4
1
2
XH1
-
3
4
1
2
3
4
X23
-
5
6
7
8
1
2
3
4
X24
-
5
6
7
8
BUTTON/SWITCH
S1
PRESSURE SENSOR
SK1
SK2
MCB_miniMCB v2019.1
LED4
LED5
LED6
LED7
PURPOSE
Board Reset button (B5 mcu port)
120R line termination resistor
miniMCB EX1
MAX
LED
CONTACT NAME
CURRENT,
NO.
A
AI1 (0-10V)
-
-
GND
24VDC
GND
AO1 (0-10V)
-
-
GND
AI2 (NTC)
DO1
24VDC
-
-
DO2
24VDC
GND
0,01
5VDC
GND
0,01
5VDC
DI1
12VDC
DI2
12VDC
-
-
DI3
12VDC
DI4
12VDC
GND
24VDC
12VDC
3.3VDC
-
-
2.5VDC_REF
GND
I2C_SDA
I2C_SCL
LED1
PURPOSE
EX1 Reset button
PURPOSE
Current supply air flow pressure (Pa)
Current extract air flow pressure (Pa)
MCB status LED
Communication line Transmit indica-
tion
Communication line Receive indica-
tion
24V peripheral POWER ON indica-
tion
FUNCTIONAL UNIT TITLE
A1-Supply RH/pressure or extract
CO
/RH sensor input
2
Heater control output (0-10VDC)
Hydronic heater ret. fluid tempera-
ture sensor
Working indication output (24VDC;
1,2W max.)
Alarm indication output (24VDC;
1,2W max.)
Power supply for DTJ sensor
Supply air electrical heater manual
protection input (NC)
Supply air electrical heater au-
tomatic
protection
input
Water heater circulation pump fail
Supply filter pressure relay/Fire place
realy input I, DI (NO)/ Fire protection
input 2 (NO)
Extract
filter
pressure
relay/Fire
place relay input II, DI (NO)
Communication with MCB, power
EX1 status LED
+
-
-
-
OPERATION IN
STAND-BY MODE
(1W)
-
-
-
-
-
-
-
(NC)/
-
-
-
-
-
EN |
21
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