Taconova TACOTHERM FRESH PETA 2, Operating Instructions Manual

Page: 49 / 76

Fault descrip-
tion Cause Remedy Personnel
Black water at
the taps. Heat exchanger
defective.
Check the water quality.
Heating and
sanitary
technician
Insufficient
water pressure
at the taps. Calcination of the
outlet valve or
drinking water con-
nection pressure
too low.
Clean the aerator at the
outlet valve, or check the
connection pressure in the
building.
Operator
Calcination of the
pipes in the fresh
hot water station or
in the entire pipe
system. Check the water quality. Heating and
sanitary
technician
Stations with
two-zone strati-
fier: Excessive
tank return flow
stratification Incorrect parame-
ters set for the
controller.
Set the parameters for the
controller in accordance
with the instructions for
the controller ( Ä
Chapter
1.2 ‘Other applicable docu-
ments’ on page 8).
Heating and
sanitary
technician
Tank sensor or
return line sensor
defective.
Replace the tank sensor or
return line sensor.
Heating and
sanitary
technician
Drive motor for the
two-zone stratifier
defective.
Replace the drive motor in
accordance with the manu-
facturer’s documentation
(
Ä
Chapter 1.2 ‘Other appli-
cable documents’
on page 8).
Heating and
sanitary
technician
Safety valve
blows off. Safety valve defec-
tive.
Check the network pres-
sure and, if necessary,
replace the safety valve.
Heating and
sanitary
technician
9.3 Fault repair work
9.3.1 Replacing the heat exchanger
Personnel:
n
Heating and sanitary technician
Tool:
n
Adjustable spanner
n
Hexagon socket screw key
1.
Shut down the fresh hot water station for a short period
( Ä
Chapter 11.1 ‘Shutting down the fresh water station for a
short period (<24 h)’ on page 56).
2.
Drain the fresh hot water station ( Ä
Chapter 11.3 ‘Draining the
fresh water station’ on page 57).
TACOTHERM FRESH PETA 2 / PETA 2 X Faults
V02.2020 11/2020 Item no. 215747 EA no. 1329 Operating instructions 49