Adjusting Maximum Heating Power; Annual Servicing - Dunkirk DCC-150 COMBI Manuel D'installation, D'utilisation Et D'entretien

14.1 ADJUSTING MAXIMUM HEATING POWER

The maximum heating power of the boiler can be reduced to suit the requirements of the heating system it serves. A table showing
parameter P13 values according to the desired maximum power model is shown below for each single boiler.
To access and edit P13 values, proceed as described in the PARAMETER SETTINGS section.
Boiler model - PARAMETER P13 (%)/ Heating output
Btu/h kW
20,473 6
23,885 7
27,297 8
30,709 9
34,121 10
40,946 12
47,770 14
54,594 16
61,419 18
68,243 20
75,067 22
81,891 24
88,716 26
95,540 28
102,364 30
109,189 32
112,601 33

15. ANNUAL SERVICING

DANGER
Burn Hazard! Wait for the appliance to cool down before working on the parts exposed to heat
WARNING
Before commencing any maintenance operations, make sure the boiler is disconnected from the power supply. After
servicing, reset the original operating parameters of the boiler if they were changed.
WARNING
Burn Hazard! Do not clean the boiler with abrasive, aggressive and/or easily flammable substances (such as petrol,
acetone, etc.).
To optimize boiler efficiency, carry out the following annual maintenance:
• Check the appearance and airtightness of the gaskets of the gas and combustion circuits;
• Check the state and correct position of the ignition and flame-sensing electrodes;
• Check the state of the burner and make sure it is firmly fixed;
• Check for any impurities inside the combustion chamber. Use a vacuum cleaner to do this;
• Check the pressure of the heating system;
• Check the pressure of the expansion tank;
• Check the fan works correctly;
• Make sure the flue and air ducts are unobstructed;
• Check for any impurities inside the condensation trap;
• Check the magnesium anode, where present, for boilers fitted with indirect storage tanks.
DCB-125 DCC-150
0 0
4 3
7 6
11 9
15 12
22 18
30 24
37 29
44 35
52 41
59 47
67 53
74 59
80 65
88 71
75
96
100 80
36
240011373, Rev. G [03/31/2017]