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20
Description of indicators, plugs and switches,
continued
Part/function
This table refers to the illustration above:
Pin no.
z
b
d
2
Interconnection -
“Warning” relay NC. Fail relay NC.
4
Interconn
“Warning” relay com. Fail relay com.
6
Damper GND
Damper control
Damper supply
8
36 V AC supply
Power meter compr.
GND
Power meter heat
GND
10
36 V AC supply
Power meter compr. Power meter heat
12
GND
Alarm relay NC.
Alarm relay com.
14
- Batt Int DC fan.
PWM Int. DC fan
+ Batt Int DC fan.
16
“Hot spot” sensor
GND
Return sensor GND Cond. sensor GND
18
“Hot spot” sensor
Return sensor
Cond. sensor
20
- 48 V DC int. fan
Rot. Sign. Int. DC
fan
+48 V DC int. fan
22
Dig./Analogue GND Analogue input 2
Analogue input 1
24
Digital input 3
Digital Input
“Occupied”
Digital Input smoke
alarm
26
- Batt ext. DC fan
PWM Ext. DC fan
+ Batt ext. DC fan
28
RS 485 B
Supply air sensor
GND
Outdoor air sensor
GND
30
RS 485 A
Supply air sensor
Outdoor air sensor
32
- 48 V DC ext. fan
Rot. Sign. Ext. DC
fan
+48 V DC ext. fan
Input/output
terminals
An extra row of terminals is located next to the supply terminals:
Terminal no.
Description
1 Warning
2 Warning
3 Alarm
4 Alarm