STIEBEL ELTRON LWZ 370 plus - Page 14

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INSTALLATION
Installation
10.4.4 Connection X14
1 2 3 4 5 6 7 8 9
26�04�15�0002
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