Morco GB24 - Boiler Display and Fault Codes; Final Checks and User Handover

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SECTION 6 - COMMISSIONING INSTRUCTIONS
6.6 FINAL CHECKS
Re-light and test for gas soundness.
Set the CH and DHW temperature knobs to the desired settings.
Ensure that the integral timer and/or room thermostat are set to
the required settings.
6.7 HANDING OVER
After completing the installation and commissioning of the system
the installer should:
• Hand the Users Instruction to the owner and emphasise their
responsibilities under the relevant national regulations.
• Explain and demonstrate the lighting and shut down
procedures.
• Explain the operation of the boiler and the use and
adjustment of the system controls to ensure the greatest
possible fuel economy, consistent with the owners heating
and hot water requirements.
• Advise the user of the precautions necessary to prevent
damage to the system and to the building in the event of the
system remaining in operation during frosty condition.
• Explain the function of the boiler fault mode. Emphasise that
if a fault is indicated, refer to Fault Codes in the User Guide.
• Explain and demonstrate system controls, integral timer
functions and boiler restart procedure.
IMPORTANT - Stress the importance of an annual service by
a competent gas registered engineer.
THE DISPLAY
The user control has two LEDs and two 7 segment displays
to inform the user about the status. The display will show
the status of the boiler. The LED will show the status of the
ame. If no ame is detected the LED is off. When the ame
is detected the LED will be lit permanently.
Below is a list with display function in normal operation.
Standby, no demand for heat present.
CH Boiler is active for central heating.
H Boiler is active for domestic hot water.
F CH circuit water less than 5ºC.
Below is a list with display in fault condition. If the display is
showing “L” or “F” with a number / letter refer to page 33.
L Boiler is in lockout for a specic error. Display will
show “L” with a number or letter to show which error is
detected.
F Boiler has a fault for a specic error. Display will show “F”
with a number or letter to show which error is detected.
Service Modes
SH Service High
SL Service Low