Buderus Logamatic 4122 User Manual

Operation in the event of a fault
12
Logamatic 4121, 4122 and 4126 - Subject to technical modifications.
83
12.3 Manual mode Logamatic 4126
Before making any adjustments for manual mode, check
the individual modules for any settings which may be
incorrect. If the control system indicates a fault you may
temporarily run your heating system manually.
z Switch on the control unit via the ON/OFF switch
(Æ
Fig. 26, [1]).
z Set primary circuit (Æ Fig. 26, [2]) at selector
switch to manual .
z Set secondary circuit (Æ Fig. 26, [3])
at selector switch to manual .
z Set boiler water thermostat on the boiler to the
required temperature.
z Switch on "Flue gas test" switch Q on the wall
mounted boiler.
Fig. 26 Logamatic 4126
20
25
15
+
B
1
2
3
2
3
1
WARNING!
RISK OF SCALDING
from hot water!
The DHW temperature can be set to
a
maximum of 80 °C. Settings higher than
60 °C create a risk of scalding at the draw-
off points.
z Ask your local heating contractor about
the maximum set DHW temperature
and/or check it yourself. The DHW
temperature is set via the thermostat
of
the wall mounted boiler.
CAUTION!
SYSTEM DAMAGE
through closed mixer circuits!
z To ensure operational reliability, mixer
circuits must not be fully closed.
B
P
3
P
B
S
3
S

Buderus Logamatic 4122 Specifications

General

Brand	Buderus
Model	Logamatic 4122
Category	Control Unit
Language	English