11.3.2. Air Discharge Mode (AP Mode)
It is the process that the device automatically activates to discharge air in the central heating
installation for 160 seconds. In this mode, "AP" is displayed on the screen.
The circulation pump runs for 15 seconds then stops every 5 seconds in intervals of every 20 seconds.
The three-way valve motor also changes position between a CH-DHW in 40 seconds. The situations
where this mode is activated is listed here below.
• Once the device is powered for the first time or after the electricity has been switched off and on,
• After the reset operation following the overheating fault (A03),
• After elimination of high water pressure (C40) or low water pressure (C37) error,
Do not press 'RESET' while AP mode is active.
11.3.3. Winter Mode – Radiator Heating
If the device in the standby position is set to the winter position, the appliance will heat the water in the
heating circuit until the domestic water is needed. In the winter mode, both the tap and the radiator icon
are displayed on the LCD screen. When a request for heating is made for radiator, radiator icon flashes
(once/second), tap icon stays fixed. When a request for domestic water is made, tap icon flashes
(once/second), radiator icon stays fixed. In this mode, radiator heating circuit's temperature can be set
between 30-80°C. For under floor heating applications, the temperature range can be set between
30-45°C.
11.3.4. Summer Mode
If the device in the OFF position is set to the summer position, the device will only respond to the
domestic hot water demands. In summer mode, the tap symbol appears fixed on the LCD screen, the
radiator icon does not appear. When the domestic hot water is heating request, the tap symbol flashes
(1 time / second). In this mode, the domestic hot water temperature can be adjusted between 30-65°C.
11.3.5. Comfort Mode
The standard operating mode of the device is Comfort mode. By pressing the "Reset" button, Eco-
Comfort modes can be switched. When Comfort mode is active, "Comfort" icon is displayed on the LCD
screen. Comfort mode is only for radiator heating circuit. It has no effect on use of domestic water
circuit. In this mode, the device responds to fast heating demands by running in modulation.
11.3.6. ECO Mode
By pressing the "Reset" button, Eco-Comfort modes can be switched. When Eco mode is active, "Eco"
icon is displayed on the LCD screen. Eco mode is only for radiator heating circuit. It has no effect on
use of domestic water circuit. This mode allows savings on fuel by performing on-off operation.
11.3.7. Maintenance Reminder Mode
It is the mode where a reminder for yearly maintenance is activated. When this mode is
active, only "ASE" is displayed on screen and device continues to meet heating
requests. When you see "ASE" on screen, please get in contact with E.C.A. authorized
services for yearly maintenance.
11.3.8. Anti-Frost Mode
During the winter season, when the installation water temperature falls below 6 ° C, the anti-freeze
function is activated and the device continues to operate until the water output of installation rises to
15°C. In order for anti-freeze function to be activated, the following conditions must be checked and
ensured by the customer.
• The power supply of the device must be switched on.
• The gas valve and radiator valves must be open.
• Water pressure of system should be at appropriate level.
• The anti-freeze function helps protect your device, it does not protect your installation.
• If device will not be operated for a while in places where there is risk of freezing, then it is
necessary to drain the water or to use an anti-freeze agent.
INFORMATION
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