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5797 340 - 01
Vitoflex 300-RF Installation & Operating
Parameters
Boiler 2
“Temperatures” tab
Parameters
Description
Setting in
Setting
range
Default
value
“Operating status”
Displays the current operating state of additional boiler
--
--
--
“Start at
temperature
undershooting”
Start temperature of Boiler 2
(°F)
°C
(122 to 203)
50 to 95
(158)
70
“Start delay”
Start delay after set temperature has been undershot
minutes
0 to 600
60
“Temperature drop” If the temperature at the set sensor falls below the start
temperature by this value, the boiler starts without start
delay.
(°F)
°C
(50 to 122)
10 to 50
(68)
20
“Minimum runtime” Minimum runtime of Boiler 2 after starting up
minutes
0 to 600
10
“Boiler start at
sensor”
Setting specifies which sensor Boiler 2 should start at
--
“ B28.2”
“ B28.2”
“Tank charging,
to sensor”
Setting specifies to which sensor Boiler 2 should charge
the heating water buffer tank
--
“ B28.4”
“ B28.4”
“Tank charging,
temperature”
Setting specifies the temperature to which the boiler
should charge the heating water buffer tank
(°F)
°C
(122 to 194)
50 to 90
(176)
80