Commissioning The Boiler; Adjusting Ambient Temperature And Dhw Temperature - Baxi Mainfour 24-24F Operating And Installation Instructions

To light the boiler correctly, proceed as follows:
1) power the boiler
2) open the gas tap;
3) press the button ( and switch the boiler to Summer (
)
4) press the heating circuit (
the main burner.
When the boiler is lit, the symbol ( ) will appear on the display.
In the Summer position (
Warning:
During initial ignition, the burner may not ignite (causing the boiler to shut down) until any air in the gas pipes is vented.
In this case, repeat the ignition procedure until gas reaches the burner. Press button ( ), for at least 2 seconds.
Figure 1

4. ADJUSTING AMBIENT TEMPERATURE AND DHW TEMPERATURE

The system must be equipped with an ambient thermostat for controlling the room temperature.
Adjust the ambient temperature (
The ignition of the burner is shown on the display with the symbol ( ) as described in section 3.1.
HEATING
While the boiler is operating in heating mode, the display (figure 1) shows the flashing symbol (
livery temperature (°C).
DOMESTIC HOT WATER
While the boiler is operating in DHW mode, the display (figure 1) shows the flashing symbol (
temperature (°C).
INSTRUCTIONS FOR USERS

3. COMMISSIONING THE BOILER

) and domestic hot water circuit (
) the main burner will only ignite if a DHW tap is turned on.
) and the DHW temperature (
), Winter ( ) or heating only (
) temperature adjustment buttons (
SYMBOL KEY
Operation in the heating mode
Flame present (burner on)
No flame (ignition failure)
Operation in the DHW mode
Generic fault
RESET
No water (Low system pressure)
Numerical signal (Temperature, fault code, etc.)
BUTTON KEY
On/Off/Summer/Winter
+/-
) CH Temperature Adjust (Heating)
(
+/-
( ) DHW Temperature Adjust (Hot Water)
Reset
Information
) by pressing the respective
29
);
+/-
) in order to ignite
+/-
buttons (figure 1).
) and the heating de-
) and the DHW output
71.07144.01 - EN