Dunkirk DWB Series - Manual (Page 28)

Boiler Ignition
Supply unit with electricity.
Boiler ignition
For 120 seconds display will show FH which identifi es the
air venting cycle for the heating system.
During the fi rst 5 seconds the display will show the
software release of the card also.
Open the gas valve before the boiler.
When FH vanishes, boiler is ready to automatically work
whenever hot tap water is drawn or room thermostat
requests heating.
Turning the boiler off
Press the button below (see item 7 on the control panel
display) for 5 seconds.
When the boiler is turned off, the electronic board is still
powered.
Domestic hot water and heating operation are disabled. The
antifreeze system remains activated.
To re-light the boiler, press the button (see item 7 on the
control panel display) again for 5 seconds.
Boiler will be immediately ready to operate whenever
domestic hot water is drawn or room thermostat demand.
Summer/Winter Switchover
Press the button for 2 seconds.
Display will activate Summer symbol (see item 10 on the
control panel display). Boiler will deliver tap water only.
Antifreeze system stays on.
To turn off Summer mode, press button again for 2
seconds.
Heating temperature setting
Use heating buttons (see items 3 and 4 on the control
panel display) to change the temperature from minimum of
86°F (30C) to a maximum of 185°F (85C); it is advisable to
not operate boiler below 113°F (45C).
Domestic hot water temperature adjustment
Operate DHW buttons (see items 1 and 2 on the control
panel display) to vary the temperature from a minimum of
50°F (40C) to a maximum of 149°F (55C)
10 - OPERATING INSTRUCTIONS
28