9-
INITIAL START-UP, OPERATION AND SHUT DOWN
9.1- Initial Start-Up
- First of all, the electrical connection of combi boiler should be made. The electrical
connection of the device must be connected to a grounded supply line that can supply
sufficient voltage for the device.
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All radiator valves are opened.
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The radiator outlet-return valves of the combi boiler must be open.
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After these operations, the filling valve is slowly opened to start water filling.
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The filling process is continued until the water pressure read on the device screen is
between 1.5 to 2 bar and then the valve is closed.
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When the water pressure rises above 0.8 bar, the combi boiler switches to automatic air purge
mode, and “AP” is displayed on the device. In this case, the RESET button should never be
pressed and it should be waited for the 16-second air purge process to complete.
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During commissioning, the pressure on the pressure gage should be checked frequently. If the
pressure drops frequently, there is a leak in the water installation.
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To discharge air from the central heating installation, the air purgers of the radiator are
loosened and the air is allowed to discharge until water comes out. This is done for all
radiators.
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The pressure is rechecked via the LCD screen. The filling valve is opened and the
pressure is allowed to reach 1.5-2 bar.
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Whether there is air in the central heating installation is checked from the radiator air
purgers. For fully efficient heating,
all air must be evacuated from the installation.
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Finally, check for any leaks in the radiator and installation pipes
.
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Check the domestic water installation by opening the hot water tap. Check for are any
leaks in the installation pipes.
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The initial start-up of the device must be performed by the authorized service.
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After the installation and initial start-up operations of the device are completed, ask the
authorized service for information about how to operate the device and the safety devices.
Ask for information for econiomic and comfortable use of the device in Eco/Comfort modes.
9.2- Turning Off the Device
You can turn off the combi boiler by holding the On/Off button for 3 seconds. The screen will turn
off in 1 minute.
Anti freeze protection function remains active.
CAUTION:
To prevent calcification of the heat exchanger, the pH of the water to
be used in the combi boiler installation should be between 7.5 to 9.5. If there are
any aluminum parts in the installa
tion, the pH
shoul d be less than 8.5. The
hardness value of the water to be used in combi
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