Ferroli ECONCEPT TECH 25 C Instrucciones De Uso página 36

Heating power adjustment
To adjust the heating power, switch the boiler to TEST mode (see sec. 4.1). Press the
heating buttons detail 3 - fig. 1 to increase or decrease the power (min. = 00 - max. =
100). Press the reset button within 5 seconds and the max. power will remain that just
set. Exit TEST mode (see sec. 4.1).
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.
36 EN
ECONCEPT TECH 25 C - 35 C
Table of faults
Table. 8 - List of faults
Fault code
A01
A02
A03
A04
A05
A06
F07
F10
F11
F12
F13
F14
F15
F34
F35
F37
F39
A41
F42
cod. 3540R812 - 06/2011 (Rev. 00)
Fault Possible cause
No gas
Ignition/detection elec-
trode fault
No burner ignition
Faulty gas valve
Insufficient gas supply
pressure
Trap blocked
Electrode fault
Flame present signal
with burner off
Card fault
Heating sensor damaged
Overtemperature
No water circulation in the
protection activation
system
Air in the system
Fume extraction duct Fault F07 generated 3
safety device activation times in the last 24 hours
Fault F15 generated for 1
Fan protection activated
hour (consecutive)
Ionisation electrode fault Check the position of the ionisation
Flame unstable
Gas valve Offset fault
No flame after ignition
stage
(6 times in 4 minutes)
air/fume ducts obstructed
Trap blocked
The exchanger probe
detects an excessive tem-
High fume temperature
perature for over 2 min-
utes
Sensor damaged
Delivery sensor 1 fault Wiring shorted
Wiring disconnected
Sensor damaged
Return sensor fault Wiring shorted
Wiring disconnected
Sensor damaged
DHW sensor fault Wiring shorted
Wiring disconnected
Probe damaged
Exchanger probe fault Wiring shorted
Wiring disconnected
Sensor damaged
Delivery sensor 2 fault Wiring shorted
Wiring disconnected
No 230V power supply
Tachometric signal
Fan fault
interrupted
Fan damaged
Supply voltage under
Electric mains trouble
170V
Faulty mains frequency Electric mains trouble
Pressure too low
Incorrect system water
Water pressure switch
pressure
damaged or not
connected
Probe damaged or wiring
shorted
External probe fault
Probe disconnected after
activating the sliding
temperature
Delivery sensor
Sensor positioning disconnected from the
pipe
Heating sensor fault Sensor damaged
Cure
Check the regular gas flow to the
boiler and that the air has been
eliminated from the pipes
Check the wiring of the electrode and
that it is correctly positioned and free
of any deposits
Check the gas valve and replace it if
necessary
Check the gas supply pressure
Check the trap and clean it if
necessary
Check the ionisation electrode wiring
Check the card
Check the correct positioning and
operation of the heating sensor
Check the circulating pump
Vent the system
See fault F07
See fault F15
electrode and replace it if necessary
Check the burner
Check the Offset adjustment at
minimum power
Remove the obstruction from the flue,
fume extraction ducts and air inlet and
terminals
Check the trap and clean it if
necessary
Check the exchanger
Check the wiring or replace the sensor
Check the wiring or replace the
sensor
Check the wiring or replace the
sensor
Check the wiring or replace the
exchanger probe
Check the wiring or replace the
sensor
Check the 3-pin connector wiring
Check the 5-pin connector wiring
Check the fan
Check the electrical system
Check the electrical system
Fill the system
Check the sensor
Check the wiring or replace the
sensor
Reconnect the external probe or
disable the sliding temperature
Check the correct positioning and
operation of the heating sensor
Replace the sensor