Ferroli ECONCEPT TECH 18 A Instructions D'utilisation, D'installation Et D'entretien page 27

ECONCEPT TECH 18 A
4.2 Startup
Before lighting the boiler
• Check the seal of the gas system.
• Check correct prefilling of the expansion tank.
• Fill the water system and make sure all air contained in the boiler and the system
has been vented.
• Make sure there are no water leaks in the system, DHW circuits, connections or boiler.
• Check correct connection of the electrical system and efficiency of the earthing system.
• Make sure the gas pressure for heating is that required.
• Make sure there are no flammable liquids or materials in the immediate vicinity of
the boiler
Checks during operation
• Switch the unit on.
• Check the tightness of the fuel circuit and water systems.
• Check the efficiency of the flue and air/fume ducts while the boiler is working.
• Check the correct tightness and efficiency of the condensate removal system and trap.
• Make sure the water is circulating properly between the boiler and systems.
• Make sure the gas valve modulates correctly in heating and domestic hot water pro-
duction.
• Check proper lighting of the boiler by turning it on and off several times with the room
thermostat or remote control.
• Make sure the fuel consumption indicated on the meter matches that given in the
technical data table on cap. 5.
• Make sure that with no heating demand the burner correctly lights on opening a hot
water tap. Check that the heating circulating pump stops on opening a hot water tap
during heating operation and there is a regular production of hot water.
• Check correct programming of the parameters and carry out any required customi-
sation (compensation curve, power, temperatures, etc.).
4.3 Maintenance
Periodical check
To ensure correct operation of the unit over time, have qualified personnel carry out a
yearly check, providing for the following:
• The control and safety devices (gas valve, flow meter, thermostats, etc.) must func-
tion correctly.
• The fume exhaust circuit must be perfectly efficient.
• The sealed chamber must be tight.
• The air/fume terminal and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits. Do not use chemical
products or wire brushes to clean.
• The electrode must be properly positioned and free of scale.
• The gas and water systems must be tight.
• The water pressure with system cold must be approx. 1 bar; otherwise bring it to that
value.
• The circulating pump must not be blocked.
• The expansion tank must be filled.
• The gas flow and pressure must match that given in the respective tables.
• The condensate removal system must be efficient, with no leaks or obstructions.
4.4 Troubleshooting
Diagnostics
In case of operation faults or problems, the display flashes and the fault identification
code appears.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
operation just press the reset button (detail 6 -fig. 1) for 1 second or RESET on the op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to firstly
eliminate the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
Table of faults
Table. 5 - List of faults
Fault code Fault
A01 No burner ignition
Flame present signal with
A02
burner off
Overtemperature protec-
A03
tion activation
Fume exhaust duct safety
A04
activation
A05 Fan protection activated
No flame after ignition stage
A06
(6 times in 4 minutes)
F07 High fume temperature
F10 Delivery sensor 1 fault
F11 Return sensor fault
F12 DHW sensor fault
F13 Fume sensor fault
F14 Delivery sensor 2 fault
F15 Fan fault
F34 Supply voltage under 170V Electrical mains trouble
F35 Faulty mains frequency
Incorrect system water
F37
pressure
F39 External probe fault
A41 Sensor positioning
F42 Heating sensor fault
cod. 3540R791 - 02/2010 (Rev. 00)
Possible cause Cure
Check the regular gas flow to the
No gas boiler and that the air has been elimi-
nated from the pipes
Check the wiring of the electrode and
Ignition/detection electrode fault that it is correctly positioned and free
of any deposits
Check the gas valve and replace it if
Faulty gas valve
necessary
Insufficient gas supply pressure Check the gas supply pressure
Check the trap and clean it if neces-
Trap blocked
sary
Electrode fault Check the ionisation electrode wiring
Card trouble Check the card
Check the correct positioning and
Heating sensor damaged
operation of the heating sensor
No water circulation in system Check the circulating pump
Air in system Vent the system
Fault F07 generated 3 times in See fault F07
the last 24 hours
Fault F15 generated for 1 hour
See fault F15
(consecutive)
Ionisation electrode fault Check the position of the ionisation
electrode and replace it if necessary
Flame unstable Check the burner
Gas valve Offset fault Check the Offset adjustment at mini-
mum power
Remove the obstruction from the flue,
air/fume ducts blocked fume exhaust and air inlet ducts and
terminals
Check the trap and clean it if neces-
Trap blocked
sary
Flue partially obstructed or Check the efficiency of the flue, fume
insufficient exhaust ducts and outlet terminal
Check the correct positioning and
Fume sensor position
operation of the fume sensor
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Sensor damaged
Check the wiring or replace the sen-
Wiring shorted
sor
Wiring disconnected
Check the wiring of the 3-pin connec-
No 230V power supply
tor
Check the wiring of the 5-pin con-
Tachometric signal interrupted
nector
Fan damaged Check the fan
Check the electrical system
Electrical mains trouble Check the electrical system
Pressure too low Fill the system
Water pressure switch damaged
Check the sensor
or not connected
Probe damaged or wiring Check the wiring or replace the sen-
shorted sor
Probe disconnected after acti- Reconnect the external probe or dis-
vating the sliding temperature able the sliding temperature
Delivery sensor disconnected Check the correct positioning and
from the pipe operation of the heating sensor
Sensor damaged Replace the sensor
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