Example:
Static head
(The distance between
the external unit and the
highest internal device)
10 m
= static pressure
1 bar
Note
Where the installation results in
the static height of all components
being on a single level (for exam-
ple in a bungalow) or where the
internal device lies lower than the
external unit, adjust the inlet pres-
sure to 0.5 bar.
3.
Top up with water, until the filling
pressure exceeds the inlet pres-
sure of the diaphragm expansion
vessel.
On a cold system, the filling pres-
sure must be approx. 0.5 bar higher
than the static pressure.
Max. operating pressure: 3.0 bar.
4.
During commissioning, mark this
value on the pressure gauge as
minimum filling pressure.
Cleaning the water filter
Note
Clean the water filter installed on site
for the first time after 2 hours of opera-
tion.
!
Please note
Dirt inside the heat exchanger
of the hydraulic circuit (heating
or cooling circuit) can lead to
the plate-type heat exchanger
icing up, which would result in
severe equipment damage.
Only fill the hydraulic circuit
with clean water; regularly
clean the water filter.
1.
Close the shut-off valves upstream
and downstream of the water filter.
2.
Regularly maintain the water filter
in accordance with the manufac-
turer's instructions.
3.
Open the shut-off valves upstream
and downstream of the water filter.
4.
Vent the hydraulic circuit (see
page 10) and check the pressure in
the hydraulic circuit (see page 10).
5.
Record the implementation of the
work in the service report from
page 39.
Further details regarding the individual steps
(cont.)
11
Commissioning, inspection, maintenance
5692
695
GB
Summary of Contents for OC208HM
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