Ariston 47-116-33 Manual do utilizador, instruções de instalação e manutenção - Página 27

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Commissioning
7.7

Draining the System

Draining the Heating System
The heating system must be drained as follows:
- Turn off the boiler;
- Attach a hose pipe and open the drain valve;
- Drain the system at the lowest points (where present). When
the heating system is unused for an extended period of time,
it is recommended that you add antifreeze with an ethylene
glycol base to the water in the heating pipe work and radia-
tors if the ambient temperature drops below 0°C during the
winter.
This makes repeated draining of the entire system unneces-
sary.
Draining the Domestic Hot Water System
Whenever there is the danger of the temperature dropping below
the freezing point, the domestic hot water system must be
drained as follows:
- Turn off the general water valve for the household plumbing
system;
- Turn on all the hot and cold water taps;
- Empty the remaining water from the lowest points in the sys-
tem (where present).
7.8
Completion
For the Republic of Ireland it is necessary to complete a
"Declaration of Conformity" to indicate compliance to I.S. 813. An
example of this is given in the current edtion of I.S. 813. In addi-
tion it is necessary to complete the
7.9
Operational Checks
1.
The flue system must be visibly checked for soundness.
2.
Run the Central Heating and
Heating temperature control knob to check the gas pres-
sures at high and low fire with a pressure guage/manome-
ter, and adjust if necessary.
3.
Range rate the thermal power for Central Heating, as
detailed in S
8.2
ECTION
4.
Run the Domestic Hot Water, manipulate the Domestic Hot
Water temperature control knob to check the gas pressures
at high and low fire with a pressure guage/ manometer, and
adjust if necessary.
5.
Balance the Central Heating system until all return temper-
atures are correct and equal.
6.
Turn ON/OFF button OFF, disconnect the pressure Gauge,
retighten screw and re-light boiler.
7.
Re-examine Central Heating, Domestic Hot Water and Cold
Water supplies for soundness.
8.
Check the appearance of the gas flame to assess the ade-
quacy of the combustion air supply.
9.
If external controls have been disconnected, reconnect and
test.
10. Refit boiler casing.
Supplied By www.heating spares.co Tel. 0161 620 6677
Log Book.
manipulate the Central
27
7.10
Instructing The End User
1.
Hand over the copy of the End User Instructions supplied
with the appliance, together with these instructions, and
explain how to use the timeclock and room thermostat if fit-
ted.
2.
Show the End User how to switch the appliance off quickly,
and indicate the position of the electric supply isolator.
3.
Inform the End User of the location of all drains, isolating
valves and air vents.
4.
Explain how to turn the appliance off for both short and long
periods and advise on the precautions necessary to prevent
damage in the event that the appliance is inoperative when
freezing conditions occur.
5.
Finally advise the End User that, for continued safe and effi-
cient operation, the appliance must be serviced by a compe-
tent person at least once a year.