Riello FAMILY CONDENS 2.5, Installer And User Manual

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FAMILY CONDENS IS E
10
ENGLISH
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- Undo and remove the mixer connection gas train (A, fig. 31)
- Remove the ignition electrode and flame detection electrical con-
nections and the fan electrical connections
- Undo the 4 screws that secure the air gas conveyor to the main
heat exchanger (B, fig. 31)
- Remove the conveyor-fan assembly from the heat exchanger (C,
fig. 31), taking great care not to damage the burner insulating panel
- To access the check valve remove the fan by undoing the 4 screws
(D, fig. 32) that secure it to the conveyor
- Make sure there are no foreign material deposits on the membrane
of the check valve and if any remove them and checking for dam-
age.
- Check the correct opening and closing operation of the valve
- Reassemble the components in reverse order, making sure the
check valve is put back in the correct direction (fig. 32)
Failure to comply with the above can lead to the abnormal func-
tioning of the check valve and the consequent diverse perfor-
mance of the boiler until its failure.
Failure to comply with the above may compromise the safety
of people and animals due to the possible leakage of carbon
monoxide from the smoke pipe.
With the operation completed, perform a thorough control of
all seals of the combustion product evacuation and air suction
pipes by performing a combustion analysis.
NOTE: If the fan is removed, make sure the check valve is put back
in the correct direction (fig. 32).
Suggestions for the correct elimination of air from the heating
circuit and from the boiler.
During the initial installation phase, or in the event of extraordinary
maintenance, you are advised to perform the following sequence of
operations:
1. Open by two or three turns the automatic relief valve cap (A) and
leave it open. Connect the tube (supplied with the boiler) to the
valve, so the water can be drained into an external container.
2. Turn on the system filling tap on the hydraulic unit, and wait until
water begins to seep out of the valve.
3. Switch on the electricity supply to the boiler, leaving the gas tap
turned off.
4. Activate a heat request via the ambient thermostat or the remote
control panel, so that the 3-way valve goes into heating mode.
5. Activate a domestic water request by either turning on a tap (in the
case of instantaneous boilers) or via the storage tank thermostat
(for heating-only boilers connected to an external storage tank)
for 30” every minute so the 3-way valve passes from heating to
domestic water and vice versa about 10 times. In this situation,
the boiler will go into alarm mode due to the absence of gas, so it
must be reset every time this happens).
6. Carry on with the sequence until only water leaks out of the man-
ual air vent valve, and the air flow has stopped; now close the
manual air vent valve.
7. Check the system pressure level is correct (the ideal level is 1
bar).
8. Turn off the manual system filling tap on the hydraulic unit.
9. Turn on the gas tap and ignite the boiler.
4 - COMMISSIONING AND MAINTENANCE
4.1 First commissioning preparation
Before the ignition and the functional testing of the FAMILY CON-
DENS IS E boiler, it is necessary to:
- check that the system fuel and water supply taps are open
- check that the gas type and the power supply pressure are those
for which the boiler is designed
- check that the deaerator cap is open
- check on the display that the pressure of the water circuit when
cold is between 1 bar and 1.5 bar and that the circuit is vented
- check that the pre-loading of the expansion tank is adequate (see
technical data)
- check that the electrical connections have been carried out cor-
rectly
- check that the combustion product outlet and air suction pipes
were adequately realised
- check that the circulator turns freely; undo the inspection screw
and check with a flat screwdriver that the rotor shaft moves without
hindrances.
After routine and extraordinary maintenance operations
have been carried out, fill the siphon, following the in-
structions in the section “Installation room
”.
Before loosening or removing the closing tap of the circulator,
protect the underlying electrical devices from possible water
leakage.
Eventual releasing of the circulator shaft
- Insert a screwdriver in the hole (1) of the circulator
- Press (a) and turn the screwdriver (b) until the release of the crank-
shaft.
Perform this operation with extreme caution to avoid damaging
the components.
1
a
b
4.2 First commissioning
- Adjust the ambient temperature thermostat to the desired temper-
ature (~20°C) or, if the system is equipped with a programmable
thermostat or timer, ensure that the thermostat or timer is "active"
and set correctly (~20°C)
- Every time the boiler is powered, an automatic bleed cycle begins
(lasting about 2 minutes).
- 43 and are simultaneously displayed.
- Press the key to interrupt the automatic venting cycle.
- When powered, the boiler performs a sequence of checks, and a
series of numbers and letters will appear on the display, after which
it will go into standby.
- The boiler switches back on in the status it occupied before switch-
off.
- If the boiler is in the heating mode when it is turned off, it turns back
on in the same mode; if it is OFF, the display will show ENERGY
FOR LIFE.
- Press the key to activate operation.
- Press the key and turn the encoder A to select the required
heating water temperature.
- The large digits will light up on the display, indicating the selected
temperature value.