82
Installation
External hook−up in multi−boiler systems without LON (cont.)
Adjustments on every control unit
Set code"01:3".
The high limit safety cut−out settings
and other settings are subject to the
system equipment and the safety
equipment in accordance with
DIN47512.
Enable boiler, butterfly valve
Contact closed:
The burner can be externally
switched. The butterfly valve opens.
Contact opened:
The butterfly valve is closed after
approx. 5min. Burner stages cannot
be started externally.
Starting burner stage 1
Contact closed:
Burner stage 1 is started. The boiler
water temperature is limited by the
electronic maximum temperature
limiter, if it is set below that of
mechanical control thermostat"R".
Contact opened:
Burner stage 1 is shut down.
5862730GB
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