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Configuration and electrical connection
22
With controller ZG 252 N, the temperature and ground inputs are
located at the following terminals:
456 10
TW
ZG 252 N
Ground input
TW-Input
789 1112
Depending on the design, the temperature selector and
ground inputs are found on different terminals of the controller
MCR 200.
Boiler feedback
If control cables for heating (“boiler regression”) and for the pump
relay are available:
► Use cables in accordance with the table on Page 16.
► Connect boiler regression and pump relay to storey controller as
shown in the following diagram.