English
26
After successful maintenance and repair work, install and
connect the pump according to the "Installation and electri-
cal connection" chapter. Switch on the pump according to
the "Commissioning" chapter.
Fault
Cause
Remedy
Pump is not run-
ning although the
power supply is
switched on.
Electrical fuse defec-
tive.
Check fuses.
Pump has no voltage.
Restore power after
interruption.
Pump is making
noises.
Cavitation due to
insufficient suction
pressure.
Increase the system
suction pressure within
the permissible range.
Check the delivery-head
setting and set it to a
lower height if neces-
sary.
Building does not
get warm.
Thermal output of the
heating surfaces is
too low.
Increase setpoint
(see 5.3).
Set control mode to three
speed stages
Содержание BUE-Plus
Страница 2: ...Fig 1 Fig 2a Fig 2b H max H H min Hs Q Hs 1 2 max H min 2 1 3 Q ...
Страница 3: ...Fig 3 Fig 4a Fig 4b PE N L ...
Страница 4: ...Fig 4c Fig 4d Fig 4e Fig 5 ...
Страница 6: ......
Страница 197: ...Bosch Thermotechnik GmbH Sophienstrasse 30 32 D 35576 Wetzlar www buderus com 4 218 795 Ed 01 2017 03 ...