Operating The Boiler; Testing For Gas Leaks And Purgining The Gas Supply; Boiler Controls - Dunkirk DCC-150 Installation, Operation & Maintenance Manual

13. OPERATING THE BOILER

13.1 TESTING FOR GAS LEAKS AND PURGING THE GAS SUPPLY
• With the boiler gas service cock closed (spindle flats at right angles to valve). Pressure test the gas supply and inlet pipework
connection to the boiler gas service cock for soundness.
• Loosen the screw of the pressure inlet gas test port on the gas valve (see section 13.4: "GAS VALVE"). Ensure the gas supply
is on and open the boiler service cock to purge.
• Retighten the test port screw and test for gas leaks. Close the boiler gas shutoff device.

13.2 BOILER CONTROLS

To light the boiler correctly, proceed as follows:
• Check that the system pressure is correct;
• Power the boiler;
• Open the gas tap (yellow, positioned under the boiler);
• Select the required heating mode (see section 3.4: "OPERATING MODES").
BUTTONS Key
DHW temperature adjustment
(+ to increase the temperature and – to decrease it)
Heating water temperature adjustment
(+ to increase the temperature and – to decrease it)
Boiler operating information
Operating mode:
DHW – DHW & Heating – Heating Only
Off – Reset – Exit menu/functions
SYMBOLS Key
Off: heating and DHW disabled
(only boiler frost protection is active)
Ignition fault
Boiler/system water pressure low
Call a qualified service technician
Manually resettable fault (
Fault in progress
)
32
Burner lit
DHW operating mode enabled
Heating mode enabled
Programming menu
Boiler information menu
Set unit of measurement (SI/US)
240011373, REV D (05/02/16)