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Cleaning and maintenance
8.
Cleaning and maintenance
DANGER! Life threat of electric power shock!
Electric power work must be done only by
qualified person
Before opening device: turn heating
installation off electric power supply
using safety switcher and disconnect
it from power supply net through
corresponding fuse
Secure heating installation against
accidental turn on
Comply with instructions for installation
WARNING: Material damage due to
unprofessional maintenance!
Insufficient or unprofessional maintenance of
boiler can lead to damage or destruction and
to loss of Warranty rights
Secure regular, entire and professional
maintenance of heating installation
Electric parts and work units protect
against water and humidity
Use only spare parts delivered by the manufacturer
or those approved by manufacturer. There will be
no responsibility for damage occurred due to spare
parts not delivered by the manufacturer
Control examination log is provided on chapter 8.4
Perform works in accordance with log on control
and maintenance
All deficiencies remove immediately
8.1
Boiler cleaning
Clean this device externally with wet cloth
8.2
Check working pressure; re-fill water
and air-vent installation
DANGER: Health threat due to mix of
drinking water!
It is demanding to respect state regulations
to avoid mix of drinking water (with water
from heating installations)
Comply with EN 1717
Establish a working pressure of at least 1 bar,
depending on the height of the highest point of the
installation. If, due to the height of the installation, the
operating pressure is greater than 1 bar (eg 1.5 bar)
before the system is filled with water, it is necessary
to lift the air intake in the expansion vessel to the
same value - 1.5 bar
The volume of newly filled water is reduced in the first days
after charging due to heating. This creates airbags that create
interference in the heating system.
Testing working pressure
Working pressure of new heating installation should
control on daily basis at the beginning of its work. If
needed, re-fill water and air vent the system
Later check working pressure once per month. If needed,
re-fill water and air vent the system
Check working pressure. If it decreases below 0,5 bar re-
fill water
Re-fill the water
Air vent the heating installation
Check working pressure again
8.3
Re-fill the water and air-vent the
installation
WARNING: Material damage due to heat
tension. Filling heating installations in warm
condition can produce cracks due to tension
Fill heating installation only in cold condition
(temperature of starting duct lines of max 40 °C)
WARNING: Material damage due to frequent
re-filling!
Due to frequent water re-filling installations can
be damaged by corrosion and carbonate layers
depending on water characteristics
Test sealing and watertight of heating
installations and expansion dish on
functionality
Connect hose on water faucet
Fill the hose with water and connect to connector for
filling/draining
Tighten the hose and open the water faucet for
filling/draining
Slowly fill the heating installation while following up with
pressure (manometer)
During filling procedure air vents the system
When reach working pressure close the drainage faucet
When reach working pressure close the drainage faucet
Remove the hose from filling/drainage faucet
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