Prior To Commissioning; Commissioning For The First Time; Automatic Calibration Function - Dunkirk DCBF-100 Manual

WARNING
!
Asphyxiation hazard! Fill condensate trap before
starting boiler to avoid combustion products escaping
boiler. Failure to follow these instructions could result
in death or serious injury.
NOTICE
All connections shall be made and water added
before performing this function.
NOTICE
First ignitions immediately after installation,
system will implement a self-learning procedure
to reach correct ignition level.

9.6 Prior to Commissioning:

• Verify door is ON boiler;
• Check system pressure is correct;
• Power boiler;
• Open gas tap (positioned under boiler);
• Select required heating mode. See section 10.4
Operating Modes.

9.7 Commissioning For The First Time:

1.
Turn power to boiler on. Code "000" appears on the
display. Appliance is ready for "commissioning" procedure.
2.
Press at the same time. Hold for 6 seconds. "On"
appears on the display for 2 seconds followed by code
"312" indicating "de-aeration" function is active. This
function lasts 10 minutes.
3.
Boiler will turn on after deaeration function is complete.
Display will show code "000" alternating with % of
ignition power and temperature value (°F / °C).
• During this gas recognition function phase which lasts
about 7 minutes, type of gas being used is analyzed.
• During this function, ensure maximum heat exchange
out to the system with all zones and circulators running.
Maintain system temperature below 176° F for duration of
the process until NG or LPG are seen on the display.
• If boiler operates on Gas A (Natural Gas) and display
shows LPG (Gas E), press
and hold down for at least 4 seconds to exit without
changing factory setting. Boiler will stay set to Natural
Gas.
• If boiler operates on Gas A (Natural Gas), display shows
NG (Natural Gas) for about 10 seconds. Boiler is now
ready for normal operation.
• If boiler operates with Gas A (Natural Gas) and the
display shows LPG (Gas E), press
and hold down for at least 4 seconds to exit the function.
Change parameter P02=01 as described in section 9.15
Parameter Settings of boiler Installation, Operation and
Maintenance Manual. Perform Automatic Calibration
Function. Manual Calibration may be necessary if
combustion is not within specified range.
• If boiler operates on Gas E (LPG) and display shows LPG,
press for at least 6 seconds to confirm gas used.
• After fuel type is detected confirm P02 is set for the
desired fuel type by checking parameter see section 9.15.
9 - START UP PROCEDURE
and together
and together
49
Boiler must not shutoff during calibration.
Note
Open all heating zones in heating or DHW
mode to ensure boiler does not shutoff.

9.8 Automatic Calibration Function

Before performing this function verify the door is on the
boiler and there are no heat demands in progress.
During this function ensure there is maximum heat
exchange to the system in Heating or DHW mode (DHW
request) to avoid boiler shutting off due to overheating.
Press and together and hold for about 6
seconds. When display indicates "On" press
3 seconds after pressing previous buttons.
NOTICE
Important: If display indicates "303" Automatic
Calibration function has not been activated.
Disconnect boiler from main power supply for few
seconds and repeat procedure.
1.
When function is enabled,
the display.
2.
After ignition sequence, which can also take place
after few attempts, boiler performs three operations.
Each operation lasts about 1 minute:
• maximum power
• ignition power
• minimum power
3.
Before moving to the next combustion point the
and appear on the display as the control is setting
values.
4.
During this phase, power level reached by boiler and
delivery temperature alternate on the display.
5.
When , and
automatic calibration function has completed.
6.
Press to exit the function. Display will show
ESC.
7.
Verify combustion is within specified range. If not,
perform Automatic and then Manual Calibration.
(See Sections 9.8 & 9.9)
NOTICE
IMPORTANT: If Calibration function does not
complete, verify unit did not shut down for over-
temperature. Repeat Automatic Calibration.
Replace KEY if Automatic Calibration does not
complete after second try.
and will flash on
flash together on the display,
240013375 REV A, [07/01/2021]
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