74
Installation
External hook−up in single boiler systems (cont.)
Control unit settings
Code"01:1"
(delivered condition)
The boiler water temperature must
be set to the lower value.
The high limit safety cut−out settings
and other settings are subject to the
system equipment and the safety
equipment in accordance with
DIN47512.
Starting burner stage 1
Contact closed:
Burner stage 1 is started. An external
modulation controller regulates the
load−dependent modulation. 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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