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6.6 FROST PROTECTION
When the temperature in the heating system drops down to 5°C, there is security system that
automatically activates the resistances When the water temperature reaches 30°C, activation
of resistances are stopped. This system prevents the water inside the boiler to freeze and
damage the components.
In order for this system to work, the main switch to which the device is connected must be
turned on and the valves on the installation should be open. Malfunctions and damages
caused by frost when the electricty is off or if the valves are closed are not covered by
warranty.
6.7 DOMESTIC HOT WATER NTC SENSOR
In Maktek Omega LCD boiler, temperature control is done with precise NTC sensors. When a
sensor failure occurs in hot water system, H2 warning code appears on LCD screen.
6.8 CENTRAL HEATING NTC SENSOR
When a sensor failure occurs in central heating system.H1 warning code appears on the LCD
screen
6.9 HIGH WATER PRESSURE PROTECTION
When there is over pressure in the heating system, the 3 bar safety valve discharges water
and decreases the pressure.
6.10 CIRCULATION PUMP ANTI-JAMMING SYSTEM
When the boiler is in the OFF position, the pump is operated in every 24 hours by the control
card for a certain period of time to prevent locking and jamming of the pump.
6.11 3-WAY VALVE ACTUATOR MOTOR SAFETY
When the boiler is in the OFF position, the 3-way valve is operated in every 24 hours by the
control card for a certain period of time. The motorized valve returns to its previous position
after a certain period of time after changing the position.
6.12 AUTOMATIC BY-PASS
If there is thermostatic valve one each radiator, even when all thermostatic valves are
switched off, there is an automatic by-pass system in order to provide the passing of
minimum water flow in order to prevent rapid over heating of the boiler.
&
CAUTION!
• The stand-by safety systems of the boiler; such as frost protection, pump lock protection
and 3-way valve actuator motor safety are only active if the electricity connection of the
boiler is on. The valves on the installation should not be closed.
• Especially during winter, when the ambient temperature decreases below 0°C there is a
risk of freezing and the system water must be drained if the electrical connection of the
device is interrupted during these periods.
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