Cetetherm Midi Compact TA
Installation, service and operating instruction
20
7.1.4 Noise in the DHWC system
Reason
Action
The pump capacity is set too high
Reduce the pump capacity
Reduce the level by choosing a lower output setting on the pump.
The lowest setting is the most economical.
Air in the pump
Vent the pump
Set the pump to speed III. Loosen the pump motor end nut to and
let it stay opened until the air in the pump is released. When the
pump has been vented, i.e. when the noise has ceased, set the
pump according to the recommendations.
The pump motor or pump component
damaged
See
9.3 Change the complete DHWC pump or pump components
7.2 Service instructions, heating system
7.2.1 Heating system temperature too high or too low
Reason
Action
The heating control equipment may
need to be adjusted
Check and adjust the heating curve
Heating circuit strainer clogged
See
9.2 Clean the heating circuit strainer.
Heating valve and/or actuator does not
work
See
8.2 Check the function of the heating actuator and valve
7.2.2 No heating
Reason
Action
Circulation pump not running
Check that the electrical power is on
Check the heating parameters in operator control panel
Air pockets in the substation or in the
heating circuit
Bleed the heating pump
The pump is self-venting. Air in the pump may cause noise. This
noise ceases after a few minutes run time.
Heating circuit strainer clogged
9.2 Clean the heating circuit strainer.
7.2.3 Noise in the radiator system
Reason
Action
The pump capacity set too high
Reduce the pump capacity
Reduce the level by choosing a lower output setting on the pump.
Air in the DHWC pump
Vent the pump
The pump is self-venting. Air in the pump may cause noise. This
noise ceases after a few minutes run time.
The pump motor or pump component
damaged
See
9.4 Change the complete heating pump or pump