Rima ONGAS MEGA 05, Installation Manual

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Features of the continuous operation:
• Heating mode without time schedule
• Protective functions are active
• 24-hour heating limit is not active at Automatic summer/winter switching (ECO functions) and
Continuous operation with comfort level
2.1.3.Protection or Off: Heating system is off during the operation of the protection mode, but
protection against frost (freezing protection temperature) is active if there is no power error.
Features of the protection mode:
• Heating off
• Temperature as per freezing protection
• Protective functions are active
• Automatic summer/winter switching (ECO functions) and automatic 24-hour heating limit are active
2.2.Selection of the Winter Mode : Winter mode is selected using the Winter button. Selection is
indicated by the setting bar under the relevant symbol.
2.2.1.Winter Mode: Winter mode allows the control of the room temperature as per the time
schedule.
Features of the winter mode:

Manual winter mode

Time scheduled winter mode

Temperature setting determined as per “Comfort Winter Level”

Protective functions are active

Automatic summer/winter switching is active

Summer compensation
2.2.2 Freezing Protection: When the water temperature of the heating circuit is dropped too much,
the protection system integrated to the boiler is started. If the water temperature is below 4°C, the
boiler is turned on. If the water temperature rises above 10°C, the boiler switches off and the heating
circuit pump runs for a short period after that.
3.3.Selection of DHW (Domestic hot water) heating mode: The button indicated is used to switch
DHW heating mode on or off. Selection is indicated by the setting bar under the relevant
symbol.
DHW heating mode
• ON: DHW is heated as per the selected switching schedule.
• OFF: DHW heating is turned off. However, protective functions are active.