Stulz S-Klima C7000 - PIN Assignment - I;O Controller

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BA C7000 for EC Tower | EN | 01-2019 | 1000755
3.1.1 PIN assignment - I/O controller
Pin Designation EC Tower/EC Tower 2
1 24 VAC
Electrical supply
2 GND
3 GND –
4 D-IN 1 Fan malfunction
5 D-IN 2
Status signal
Compressor 1
6 D-IN 3
–/ Status signal
Compressor 2
7 D-IN 4 Electric heater malfunction 1-3
8 D-IN 5 Filter alarm
9 D-IN 6 Humidifier malfunction
10 D-IN 7 Water detector
11 D-IN 8 Outdoor unit malfunction 1
12 D-IN 9 – / Outdoor unit 2 malfunction
13 D-IN 10 Remote on/off
14 D-IN 11 Fire
15 D-OUT 1 (NO)
Fan enable16 D-OUT 1 (COM)
17 D-OUT 1 (NC)
18 D-OUT 2 (NO)
Not assigned19 D-OUT 2 (COM)
20 D-OUT 2 (NC)
21 D-OUT 3 (NO)
Electric heater 122 D-OUT 3 (COM)
23 D-OUT 3 (NC)
24 D-OUT 4 (NO)
Electric heater 225 D-OUT 4 (COM)
26 D-OUT 4 (NC)
27 D-OUT 5 (NO)
Dehumidification or
hot-gas bypass
28 D-OUT 5 (COM)
29 D-OUT 5 (NC)
30 D-OUT 6 (NO)
Common alarm 131 D-OUT 6 (COM)
32 D-OUT 6 (NC)
33 D-OUT 7 (NO)
–34 D-OUT 7 (COM)
35 D-OUT 7 (NC)
The assignment depends on the unit type (DX1, DX2, CW, EC tower, EC tower 2). A DX1 unit is an air conditioning unit with
a refrigerant circuit; a DX2 unit is an air conditioning unit with two refrigerant circuits. A CW unit is an air conditioning unit with
one or two water circuits (CW/CW2 designs). An EC tower is an air conditioning unit with an inverter-regulated outdoor unit of
Mitsubishi Heavy Industries.
e.g. ALD 371 GE -> DX1, ASU 462 ACW -> DX2, ASD 950 CW -> CW
Pin Designation EC Tower/EC Tower 2
36 +15 V
Active sensor 1
37 GND
38 A-IN 1 Room/return air temp.
39 A-IN 2 Room/return air humidity
40 +15 V
–
41 GND
42 A-IN 3 Supply air temperature sensor
43 A-IN 4 Supply air humidity sensor
44 +Ub
No function
45 GND
46 A-IN 5
47 GND
48 A-OUT 1
Fan
49 GND
50 A-OUT 2
– / Compressor speed 2
51 GND
52 A-OUT 3
Humidifier or
actual value humidity
53 GND
54 A-OUT 4
Compressor speed 1
55 GND
56 Port 1-H
RS485 I/O bus
57 Port 1-L
58 Port 1-H
RS485 I/O bus
59 Port 1-L
60 +15 V –
X10 SUB-D 15 Bus 3 IIC (socket1)
X11 SUB-D 15 Bus 3 IIC (socket2)
X12 SUB-D 15 Bus 3 IIC (socket3 )
X13 SUB-D 15 Bus 3 IIC (socket 4)
X14 SUB-D 15 Exp. EBUS (plug)
X15 SUB-D 9 RS232 service port (plug)