Alpha InTec 50CS, Инструкции по установке, использованию и обслуживанию

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Fig. 2-8
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19 Alpha Intec 50CS
Push button control panel fault. This occurs
when the circuit board detects a fault on the
push button control panel. If normal conditions
are restored the boiler restarts without having to
be reset. If this fault persists, contact a qualified
engineer for assistance.
Insufficient circulation. This occurs if there
is overheating in the boiler due to insufficient
water circulating in the primary circuit, the
causes can be:
- low system circulation - check that no shut-off
devices are closed on the heating circuit and
that the system is free of air (deaerated).
- circulating pump blocked - free the circulating
pump.
If this phenomenon occurs frequently, contact a
qualified engineer for assistance.
Loss of remote control communication. This
occurs in the case of connection to a remote
control that is not compatible. Try the connection
procedure again by turning the boiler off and
then back on again. If the Remote Control is
still not detected on re-starting the boiler will
switch to local operating mode, i.e. using the
controls on the boiler itself. In this case the boiler
cannot activate the 'Central heating' function.
To make the boiler function in 'Heating' mode,
activate the 'Emergency' function present inside
the 'Customisations' menu (Section 2.14, P33).
If this phenomenon occurs frequently, contact a
qualified engineer for assistance.
Low temperature zone 2 sensor fault. If the
board detects a fault with the low temperature
zone 2 sensor, the boiler will not function in
that zone. A qualified engineer must be called.
Low temperature zone 3 sensor fault. If the
board detects a fault with the low temperature
zone 3 sensor, the boiler will not function in
that zone. A qualified engineer must be called.
Low temperature zone 2 safety thermostat
operation.
During operation, if a fault causes
excessive overheating of the low temperature
zone 2, the boiler will not satisfy the requests
of that zone. If normal conditions are restored
the boiler restarts without having to be reset. A
qualified engineer must be called.
Low temperature zone 3 safety thermostat
operation.
During operation, if a fault causes
excessive overheating of the low temperature
zone 3, the boiler will not satisfy the requests
of that zone. If normal conditions are restored
the boiler restarts without having to be reset. A
qualified engineer must be called.
IMG Bus communication loss. If due to a fault
on the boiler control unit, communication is lost
between the control unit and the zone control
unit or on the IMG Bus, the boiler will not satisfy
central heating requests. A qualified engineer
must be called.
Low power supply voltage. This occurs when
the supply voltage is lower than the allowed
limits for the correct operation of the boiler.
If normal conditions are restored, the boiler
re-starts without having to be reset. If this
occurs frequently, contact a qualified engineer
for assistance.
Loss of flame signal. This occurs when the boiler
has lit correctly but the burner flame switches
off unexpectedly, a new attempt at ignition is
performed and if normal conditions are restored,
the boiler does not have to be reset (this fault can
be checked in the list of errors P19 present in the
'M1' menu in Section 2.14.). If this phenomenon
occurs frequently, contact a qualified engineer
for assistance.
2.7 BOILER SHUTdOWN.
Switch the boiler off by pressing the “ ”,
button, disconnect the isolation switch outside of
the boiler and close the gas cock upstream from
the appliance. Never leave the boiler switched on
if left unused for prolonged periods.
2.8 RESTORE THE SYSTEM PRESSURE.
Periodically check the system water pressure.
The boiler pressure gauge should read a pressure
between 1 and 1.2 bar.
If the pressure falls below 1 bar (with the system
cold) restore normal pressure via the system filling
valve located in the right side of the boiler and
accessible behind the bottom cover (Fig. 2-8).
Note: Ensure the valve is closed after filling.
If pressure reaches 3 bar the safety valve may
be activated.
In this case contact a qualified engineer for
assistance.
In the event of frequent pressure drops, contact
a qualified engineer to check for possible system
leakage.
2.9 dRAIN THE SYSTEM.
To drain the boiler, use the central heating drain
tap (Fig. 2-8).
Before draining, ensure that the filling valve is
closed.
2.10 dRAIN THE HOT WATER SYSTEM.
To drain the domestic hot water system, use the
hot water store drain tap (Fig. 2-8).
Note:
Before performing this operation close the
boiler cold water inlet valve and open a hot water
tap in order to allow the store to drain.
2.11 ANTI-FREEZE PROTECTION.
The boiler controls include an anti-freeze mode
that activates the pump and burner when the
system water temperature in the boiler falls
below 4°C.
The anti-freeze function is only guaranteed if:
- the boiler has a constant supply of gas and
electricity.
- the boiler is not in stand-by( ).
- the boiler ignition has not locked out.
- the boiler essential components are not faulty.
In the case of prolonged inactivity (second
home), we recommend that:
- the electricity supply is disconnected.
- the central heating and boiler domestic hot
water circuits are drained. In systems that
are drained frequently, filling must be carried
out with suitably treated water to eliminate
hardness that can cause lime-scale.
2.12 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.13 dECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact a qualified engineer for the procedures
and ensure that the electrical, water and gas
supplies are shut off and disconnected.
Central heating drain tap
Hot water store drain tap