43
9.8 De-Aeration Function
Used to eliminate air inside the heating circuit when boiler
is installed or after maintenance when water is drained from
primary circuit.
1.
Press buttons
together and hold for 6 seconds.
On
appears on display for a few seconds, followed by
program row
312
.
2.
The electronic board will activate pump on/off cycle for
10 minutes. Function will automatically stop at end of the
cycle.
3.
To manually exit this function, press
buttons
together and hold for 6 seconds.
9.9 Commission Set Up (Gas) - Changing The Type Of
Gas
During the
first
installation boiler carries out an automatic
commissioning function.
The system is able to detect the gas type present in the
network.
Correct gas type setting, is made by pressing two buttons at
the same time, see section 9.6 Commissioning.
Change of gas type is made
after
the first installation:
• Change parameter P02. See section 9.6 Commissioning
and section 9.11 Parameter Settings.
• Check minimum gas pressure is suitable for selected gas:
Gas A (NG) = 3.5" (8.7mbar)
Gas E (LPG) = 8.0" (19.9mbar)
• Place supplied label with indication of gas type close to
the data plate of boiler replacing the original.
• Manufacturer recommends
verification of CO
2
concentration
on the flue.
FIGURE 9-3 - Gas Inlet Tap - Pi
9 - START UP PROCEDURE
PI = Gas Supply Inlet Pressure Tap
D. Combustion of this appliance has been factory controlled,
calibrated and set for operation with
Gas A
(Natural
Gas).
E. During Gas Type Control Function, combustion ratio will
increase for a short period of time while gas type is being
established.
240011947 REV B, [03/31/2018]
Summary of Contents for DCB-125
Page 2: ...DCC 205 ...
Page 4: ...DCB 165 ...
Page 65: ...61 APPENDIX A WIRING DIAGRAMS A 1 MODELS 125 Heat Only 240011947 REV B 03 31 2018 ...
Page 66: ...62 APPENDIX A WIRING DIAGRAMS A 2 MODELS 165 Heat Only 240011947 REV B 03 31 2018 ...
Page 67: ...63 APPENDIX A WIRING DIAGRAMS A 3 MODELS 150 Combi 240011947 REV B 03 31 2018 ...
Page 68: ...64 APPENDIX A WIRING DIAGRAMS A 4 MODELS 205 Combi 240011947 REV B 03 31 2018 ...
Page 69: ...65 NOTES 240011947 REV B 03 31 2018 ...
Page 70: ...66 NOTES 240011947 REV B 03 31 2018 ...
Page 81: ...9 125 WITH ZONE CIRCULATOR PUMPS 125 with Zone Circulator Pumps PN 240011430 REV G 03 31 18 ...
Page 84: ...12 125 WITH ZONE VALVES PIPING DIAGRAM 125 with Zone Valves PN 240011430 REV G 03 31 18 ...
Page 90: ...18 165 with Zone Valves 165 WITH ZONE VALVES PIPING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 94: ...22 150 205 WITH ZONE PUMPS WIRING DIAGRAM 150 205 With Zone Pumps PN 240011430 REV G 03 31 18 ...
Page 102: ...30 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 103: ...31 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 104: ...32 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 105: ...33 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV G 03 31 18 ...
Page 110: ...38 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV G 03 31 18 ...
Page 111: ...39 NOTES PN 240011430 REV G 03 31 18 ...
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