14
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INSTALLATION
Installation
10.4.4 Connection X14
1 2 3 4 5 6 7 8 9
26
�0
4�
15
�000
2
The 9-pole X15 terminal strip can be accessed on the back of the
display cover without having to open the appliance.
Connection X14
Purpose
Parameter 15 Parameter 21
1 & 2
External switching contact
0
N/O contact (factory setting)
1
0 - 10 V input; X15-1 = GND & X15-2 = 0 - 10 V
2
N/C contact
3
Switching input 1: Bypass open = 12 V; bypass closed = 0 V
4
Switching input 1: Bypass open = 0 V; bypass closed = 12 V
3 & 4
Input 0 - 10 V
0
N/O contact
1
0 - 10 Vinput (= factory setting)
2
N/C contact
3
Switching input 2: Bypass open = 12 V; bypass closed = 0 V
4
Switching input 2: Bypass open = 0 V; bypass closed = 12 V
5 & 6
24 V connection
max. 4.5 V A; 5 = earth; 6 = +
7 & 8
Connection of sensor for reheat-
er coil or outside temperature
for geothermal heat exchanger
9
Valve control signal (0 or 10 V)
9 = + ; 5 = earth
