Operating Modes; Filling The System; Switching Off The Boiler; Gas Conversion - Baxi ECO5 BLUE Operating And Installation Instructions

2.

OPERATING MODES

Press this button to set the following operating modes:
• SUMMER
• WINTER
• OFF
In the SUMMER mode, the display shows
(ambient frost protection function active).
In the WINTER mode, the display shows
protection function active).
In the OFF mode, the display shows neither of the above two symbols
function is active while requests for DHW and central heating are not satisfied.
3.

FILLING THE SYSTEM

Disconnect the boiler from the mains power supply using the two-pole switch.
Regularly check that the pressure displayed on the pressure gauge B is 1 - 1.5 bar,
with the boiler cold. If the pressure is too low, turn tap C to fill the boiler.
In case of overpressure, open the boiler drain valve A.
A System drain tap
B Pressure gauge
C System filling tap
Take special care when filling the heating system. In particular, open any
thermostat valves in the system, ensure the water enters slowly in order to
prevent the formation of air inside the primary circuit until operating pressure
is reached. Lastly, vent any radiators in the system. Our company declines all
liability for damage deriving from the presence of air bubbles in the primary exchanger
due to the incorrect or imprecise observance of the above.
The boiler is fitted with a hydraulic pressure gauge which prevents the boiler from working if there is no water.
If pressure drops occur frequently, have the boiler checked by the AUTHORISED TECHNICAL SERVICE CENTRE.
4.

SWITCHING OFF THE BOILER

To turn off the boiler, disconnect the electric power supply. In the "OFF" mode the boiler remains off (the display indicates OFF)
though the electrical circuits remain live and the frost protection device is enabled.
5.

GAS CONVERSION

The boilers can operate both on natural gas (G20) and LPG (G31) . All gas conversions must be made by the AUTHORISED
TECHNICAL SERVICE CENTRE.
6.

PROLONGED SHUTDOWN. ANTI-FREEZE PROTECTION

Do not drain the whole system as filling up with water again could cause unnecessary and harmful scale to build up inside the
boiler and the heating elements. If the boiler is not used during winter and is therefore exposed to the danger of frost, add some
specific anti-freeze to the water in the system (e.g.: propylene glycol coupled with corrosion and scale inhibitors). The electronic
boiler management system includes a "frost protection" function for the heating system which, when delivery temperature falls
below 5°C, lights the burner until a delivery temperature of 30°C is reached.
The function is operative if: the boiler is electrically powered, there is gas, system pressure is normal and the boiler is not
blocked.
If the boiler is not supplied with power and the delivery temperature is below 2°C, causing the primary circuit to freeze up,
the boiler enables the "Defrosting" function which controls start-up of the burner when the supply of power is restored.
. The boiler satisfies requests for DHW only while central heating is not enabled
. The boiler satisfies requests for both DHW and central heating (ambient frost
25
. In this mode, only the ambient frost protection
7729106 (02-05/19)
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