Ferroli DIVAtop MICRO F WF - Инструкция по эксплуатации - Страница 41

DIVAtop MICRO F

41

EN

cod. 3540S261  -  02/2010  (Rev. 00)

Checks during operation

•

Ignite the appliance as described in sec. 2.3.

•

Check the airtightness of the fuel circuit and water systems.

•

Check the efficiency of the flue and air-fume ducts while the boiler is working.

•

Check that the water is circulating properly between the boiler and the systems.

•

Make sure that the gas valve modulates correctly in both the heating and hot water
production phases.

•

Check the proper ignition of the boiler by performing various tests, turning it on and
off with the room thermostat or remote control.

•

Make sure that the fuel consumption indicated on the meter corresponds to that giv-
en in the technical data table in sec. 5.2.

•

Make sure that with no call for heating the burner correctly ignites on opening a hot
water tap. Check that during heating operation, on opening a hot water tap, the heat-
ing circulator stops and there is a regular production of hot water.

•

Check the parameters are programmed correctly and perform any required custom-
ization (compensation curve, power, temperatures, etc.)

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. 28).

2.

Turn the casing (see fig. 28).

3.

Lift the casing.

B

Before carrying out any operation inside the boiler, disconnect the electrical
power supply and close the gas cock upstream

fig. 28 - Opening the casing

Combustion analysis

Two test points are provided at the top of the boiler, one for fumes (

ref. 1

 - fig. 29) and

the other for air (

ref. 2

 - fig. 29). To take samples:

1.

Open the air/fume test point plug;

2.

Insert the probes as far as the stop;

3.

Make sure the safety valve is connected to a drain funnel;

4.

Activate the TEST mode;

5.

Wait 10 minutes for the boiler to stabilise;

6.

Take the measurement.

fig. 29 - Fume analysis DIVAtop MICRO F 24

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. 5 - List of faults

A

A

1

3

2

Fault
code

Fault

Possible cause

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

Faulty gas valve

Check the gas valve and replace it if 
necessary

Ignition power too low

Adjust the ignition power

A02

Flame present signal 
with burner off

Electrode fault

Check the ionisation electrode wiring

Card fault

Check the card

A03

Overtemperature pro-
tection activation

Heating sensor damaged

Check the correct positioning and oper-
ation of the heating sensor

No water circulation in the system

Check the circulating pump

Air in the system

Vent the system

F05

The air pressure trans-
ducer does not receive 
a sufficient minimum 
value within 25 sec-
onds

Incorrect air pressure transducer wiring Check the wiring

Flue obstructed or not correctly sized

Check the length of flue and that it is 
clean

A06

No flame after ignition 
phase

Low pressure in gas system

Check the gas pressure

Burner minimum pressure setting

Check the pressures

F10

Delivery sensor 1 fault

Sensor damaged

Check the wiring or replace the sensor

Wiring shorted
Wiring disconnected

F11

DHW sensor fault

Sensor damaged

Check the wiring or replace the sensor

Wiring shorted
Wiring disconnected

F14

Delivery sensor 2 fault

Sensor damaged

Check the wiring or replace the sensor

Wiring shorted
Wiring disconnected

A15

Air signal protection 
activation

Fault F05 generated 5 times in the last 
15 minutes

See fault F05

F34

Supply voltage under 
170V.

Electric mains trouble

Check the electrical system

F35

Faulty mains frequency 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 probe fault

Probe damaged or wiring shorted

Check the wiring or replace the sensor

Sensor disconnected after activating 
the sliding temperature

Reconnect the external probe 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 oper-
ation of the heating sensor

F42

Heating sensor fault

Sensor damaged

Replace the sensor

F43

Exchanger protection 
activation.

No system H

2

O circulation

Check the circulating pump

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

1

2