WALLTHERM
®
produced and developed by
Walltherm
®
28/64
The high efficiency pump functions:
Variable pressure (left scale):
in this case the velocity/pressure of the pump will modulate, the
max. velocity is the presetted, for example no. 4
Constant pressure (right scale): in this case the pump will
work constantly on the adjusted velocity. We consider this setting
if you load a storage tank.
On the imagine you see the
constant pressure adjustment on pos. 3.
Bleed function (position on the top):
In this case the pump will be activated a few times to bleed the pump body.
More information you find in the constructors manual.
Bleed the boiler stoves heat exchanger:
On the boiler stoves upper right side you find a manual
air bleed valve. Open it to bleed the boiler stove. Before a new
heating season starts it is recommended to bleed the boiler
stove.
Manual air bleeder
The return flow
temperature displayed on
the thermometer, it should
be at 60°C
Thermostat head of mixing
valve
Normally at pos. 5
– 7
Forward flow temperature
Can be between 60
– 75 °C
The return flow temperature of
the storage tank. It can be very
low depending on the
temperature at the lower
storage tank. Speicher ist daher
auch sehr tief sein.
INFO:
If necessary the pump
unit can be turned for 180 Grad,
in this case the connection to the
Walltherm
®
boiler stove are below
and the storage tank get connected
on the top.
To protect the pump it is
recommended to start it once a
month, also in the summer time.
Non return valve
forward flow return flow
boiler stove
forward flow return flow
storage tank
