Prior To Commissioning; Commissioning For The First Time; Automatic Calibration Function - ECR International Dunkirk DCBF-125 Installation, Operation And Maintenance Manual

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 the 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, assure maximum heat exchange
to heating by having all heating zones open or all
domestic hot water taps open, in order to prevent
boiler from switching off due to overheating.
• 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 on natural gas and display shows
LPG (Gas E), press
down for at least 4 seconds to exit without changing
factory setting. Boiler will stay set to Natural Gas.
• If boiler operates on Gas E (LPG) display shows LPG
(Gas E). Press
used.
• If display shows NG (Gas A) and does not recognize
the type of gas used, press
and hold down for at least 4 seconds to exit the
function. Change parameter P02=01 as described in
section 9.12 Parameter
Operation and Maintenance Manual. Perform Automatic
Calibration Function. Manual Calibration may be
necessary if combustion is not within specified range.
9 - START UP PROCEDURE
and together and hold
for at least 6 seconds to confirm gas
and together
of boiler Installation,
Settings
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
pressing previous buttons.
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,
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 following phase, from maximum
power to ignition power and then to minimum power.
and appear on the display.
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.
to exit the function. Display will show ESC.
Press
7.
Verify combustion is within specified range. If not,
perform Automatic and then Manual Calibration. (See
Section 9.8)
IMPORTANT: If Calibration function does not
complete, verify unit did not shut down for over-
temperature. Raise minimum fan speed and repeat
Automatic Calibration. Replace KEY if Automatic
calibration does not complete after second try.
During initial ignition, burner may not ignite. This may
cause boiler to shut down until any air in gas pipes is
vented. Repeat ignition procedure until gas reaches the
burner. To reset boiler operation, press
2 seconds.
42
within 3 seconds after
NOTICE
and will flash on the
flash together on the display,
NOTICE
NOTICE
240012879 REV A, [01/31/2020]
for at least