Ferroli DIVAtop MICRO LN C, Инструкция по использованию, установке и обслуживанию

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DIVAtop MICRO LN C
36
EN
4.3 Maintenance
Periodical check
To ensure proper 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, flowmeter, thermostats, etc.) must func-
tion correctly.
• The fume exhaust circuit must be perfectly efficient.
(Sealed chamber boiler: fan, pressure switch, etc. - The sealed chamber must be
tight: seals, cable glands, etc.)
(Open chamber boiler: anti-backflow device, fume thermostat, etc.)
• The air/fume terminal and ducts must be free of obstructions and leaks
• The burner and exchanger must be clean and free of deposits. For cleaning do not
use chemical products or wire brushes.
• The electrode must be free of scale and properly positioned.
• The gas and water systems must be tight.
• The water pressure in the cold water system 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 flowrate and pressure must match that given in the respective tables.
A
The boiler casing, control panel and aesthetic parts can be cleaned with a soft
damp cloth, if necessary soaked in soapy water. Do not use any abrasive de-
tergents and solvents.
Opening the casing
To open the boiler casing:
1.
Undo the screws A (see fig. 22).
2. Turn the casing (see fig. 22).
3. Lift the casing.
B
Before carrying out any operation inside the boiler, disconnect the power supply
and close the gas cock upstream
fig. 22 - Opening the casing
Combustion analysis
1. Insert the probe into the flue;
2. Check that the relief valve is connected to a drain funnel;
3. Activate TEST mode;
4. Wait 10 minutes for the boiler to stabilize;
5. Take the measurement.
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault,
the display will flash together with the fault symbol (detail 22 - fig. 1) indicating the fault
code.
There are faults that cause permanent shutdown (marked with the letter “
A ”): to restore
operation just press the RESET button (detail 8 - fig. 1) for 1 second or RESET on the
optional remote timer control if installed; if the boiler fails to start, it is necessary to first
eliminate the fault.
Other faults (marked with the letter “
F ”) cause temporary shutdowns that are automati-
cally reset as soon as the value returns within the boiler's normal working range.
Table of faults
Table. 2
A
A
1
3
2
Code
fault
Fault Possible cause Recommended cure
A01 No burner ignition
No gas
Check the regular gas flow to the
boiler and that the air has been
eliminated from the pipes
Ignition/detection electrode fault
Check the wiring of the electrode
and that it is correctly positioned
and free of any deposits
Defective gas valve Check and change the gas valve
Ignition power too low Adjust the ignition power
A02
Flame present signal
with burner off
Electrode fault
Check the ionisation electrode wir-
ing
Card trouble Check the card
toA03
Over-temperature pro-
tection trips
Heating sensor damaged
Check the correct positioning and
operation of the heating sensor
No water circulation in the system Check the circulator
Air in the system
Vent the system
F04
Fume thermostat acti-
vated (after activation
of the fume thermostat,
boiler operation is pre-
vented for 20 minutes) Fume thermostat contact open Check the thermostat
Wiring disconnected Check the wiring
Flue not correctly sized or
obstructed
Change the flue
A06
No flame after the igni-
tion phase
Low pressure in the gas system Check the gas pressure
Burner minimum pressure setting Check the pressures
F10 Delivery 1 sensor fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
F11 Tap water sensor fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
F14 Delivery 2 sensor fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
F34
Supply voltage under
170V.
Electric mains trouble Check the electrical system
F35
Irregular mains fre-
quency
Electric mains trouble Check the electrical system
F37
Incorrect system water
pressure
Pressure too low Fill the system
Sensor damaged Check the sensor
F39 External sensor fault
Probe damaged or wiring shorted
Check the wiring or change the
sensor
Sensor disconnected after activat-
ing the sliding temperature Reconnect the external sensor or
disable the sliding temperature
F40
Incorrect system water
pressure
Pressure too high
Check the system
Check the safety valve
Check the expansion tank
A41 Sensor positioning Delivery sensor detached from pipe
Check the correct positioning and
operation of the heating sensor
F42 Heating sensor fault Sensor damaged Change the sensor
F43
Exchanger protection
trips.
No system H
2
O circulation
Check the circulator
Air in the system Vent the system
F47
System water pres-
sure sensor fault
Wiring disconnected Check the wiring
F50 Modureg fault Wiring disconnected Check the wiring
cod. 3540 S350 - Rev. 0 5 - 03 /201 3