Trianco Contractor H.E. 50/90 EXTERNAL, Инструкция пользователя по установке, пусконаладке и обслуживанию, Страница: 5 / 24

5
SYSTEM CONTROLS
ROOM THERMOSTAT
The room thermostat should not be positioned near a source
of heat, such as a radiator, or be exposed to direct sunlight,
as this will cause the heating to switch off before the room is
up to the correct required temperature. Always follow the
manufacturer’s instructions for the best siting position of the
room thermostat.
TIME-SWITCH/PROGRAMMER
When choosing the operating times for your boiler, it is
useful to remember that central heating systems usually take
between half an hour and an hour before becoming effective
and usually remain warm for up to half an hour after boiler
shut-down. The timer can therefore be switched off earlier as
an economy measure.
FROST PROTECTION
As the boiler will be sited externally to the property being
heated, the water may be in danger of freezing and, as such,
the appliance is protected by a factory-fitted frost thermostat,
which will cause the boiler to fire should the temperature
within the casings drop to below 7°C).
If the system is shut down for a long period during very cold
weather, it is also advisable to completely drain the system.
However, too frequent draining of the system should be
avoided, especially in hard water areas, as this could lead to
scaling of the boiler waterways.
See page 7 for flushing and water treatment.
SHUTTING DOWN FOR THE SUMMER
If the boiler is shut down for the summer months, it is
advisable to have it serviced and thoroughly cleaned as
soon as possible to minimise corrosion of the heating
surfaces.
OIL
The oil for your boiler is 28 sec. Kerosene class C2 to BS
2869.
Always ensure that the oil storage tank is topped up
regularly; do not wait until the tank is nearly empty before
refilling, as sludge and water could be sucked into the oil
pipe, affecting the operation of the burner and potentially
reducing the life of the pump.
After a delivery of oil, it is recommended that it be allowed to
settle in the tank for about half an hour before restarting the
boiler.
Sludge and water caused by condensation should be drawn
off at the drain-cock on the oil tank annually.
SIMPLE FAULT-FINDING
If the boiler fails to start for no apparent reason, carry out the
following checks before calling your service engineer:
1. Check for failure in the electrical supply.
2. Check for a blown fuse. If the fuse has blown and the
replacement subsequently blows again, switch off the mains
electrical supply to the boiler and contact your service
engineer.
3. Check that there is adequate oil in the tank and that all
isolation valves are fully open.
4. Check for burner lock-out (see page 4 ).
5. Check for excess water temperature (see high-limit
thermostat details, page 4 , for further details).
Note: If the boiler has been shut down due to a failure of the
power supply, it may be necessary to reset the time-
switch or programmer to the correct time, unless the
device has an in-built power reserve.
SERVICING
To ensure the efficient and reliable operation of the boiler it is
essential that the burner be
commissioned immediately after
installation, and prior to first use. The boiler requires an annual
service thereafter.
IMPORTANT NOTES
1. Only an OFTEC-trained and registered engineer can carry
out commissioning and service work.
2. Electrical safety checks should be carried out by a qualified
electrical engineer.
3. It is the responsibility of the installer to ensure proper
commissioning is carried out.
4. It is a requirement of the guarantee and any extended
warranty that an annual service is carried out.
5.
The system water must always be protected by a corrosion
inhibitor.