User manual

User Manual
Wall Hung Condensing Boiler – Cod. 99921NA – June 2002
I
BOILER OPERATION AND ADJUSTMENT PROCEDURES FOR USER
Before turning on the boiler read the following warnings carefully .
Make sure that the warranty booklet carries the stamp of the authorised technician responsible for installing the boiler.
Installation, starting up for the first time, adjustments and maintenance operations must all be carried out solely by qualified
technicians. Incorrect installation may cause damage to persons, animals or property for which the manufacturer cannot be held
liable.
WARNING!
⇒ Do not start the boiler unless you are sure it has been thoroughly tested by an authorised technician.
⇒ Check that the regulations regarding air intakes and ventilation of the room where the boiler is installed have been fully
complied with.
⇒ Boilers can be installed externally, in a partially protected place (see page no.6) in conformity with local Building Regulations
and only if the outside minimum temperature is not lower than –10°C; the manufacturer is not responsible for external
installations where the outside temperature is lower than – 10°C.
⇒ The anti-freeze system will come into operation only if the ON/OFF switch 1 (see fig.1) is ON position and the gas supply
turned on. The manufacturer can accept no responsibility for damage to the boiler caused by lack of observation of these
requirements.
⇒
If the boiler should freeze up, under no circumstances attempt to turn it on but call the service centre immediately.
LEGEND
(see fig. 1)
1.
ON / OFF POWER SWITCH
2.
HEATING TEMPERATURE ADJUSTMENT KNOB
3.
DOMESTIC HOT WATER TEMPERATURE ADJUSTMENT
KNOB
4.
SPACE FOR AN OPTIONAL TIME CLOCK
5.
MODE SELECTION PAD (SUMMER ONLY / WINTER
ONLY / SUMMER AND WINTER)
6.
OUTSIDE TEMPERATURE DISPLAY PAD (ONLY WITH
OPTIONAL OUTSIDE TEMPERATURE SENSOR FITTED)
7.
TEMPERATURE AND ERROR CODES DISPLAY
8.
WATER DEFICIENCY INDICATOR
9.
WATER PRESSURE LEVEL 1 BAR INDICATOR
10.
WATER PRESSURE LEVEL 1.5 BAR INDICATOR
11.
GENERAL LOCK-OUT WITH FLASHING ERROR CODE
ON DISPLAY (7)
12.
HEATING MODE (STABLE LIGHT)
HEATING OPERATION (FLASHING LIGHT)
13.
DOMESTIC HOT WATER MODE (STABLE LIGHT)
DOMESTIC HOT WATER OPERATION (FLASHING LIGHT)
Turning on the electronic ignition:
 turn on the gas cock situated under the boiler grill;
 push Pad 5 to select heating mode (led 12 ON
intermittent) or D.H.W. mode (led 13 ON intermittent);
 make sure that display light is ON (see fig. 1) and the
no.9 or no.10 lights are ON (see fig. 1); if light no.8
flashes, it means water deficiency in the system: open
the filling tap located under the boiler and fill the
system until a pressure of 1.5 bar has been reached (light no.10 ON; see fig. 1) and then close the filling tap.
 The automatic ignition system will turn the burner on.
It may be necessary to repeat the procedure a few times to purge air from the pipes. Set the ON/OFF switch 1 (see fig.1) to OFF and
then ON position and try the ignition procedure once again. If the boiler does not start, reset boiler and set the ON/OFF switch 1 to
OFF and then ON position.
IMPORTANT
should the boiler fail to ignite
wait 3 minutes
before a new ignition procedure.
In case of water deficiency the display shows code 04 intermittent and the Led 8 is ON. To restore water pressure open the tap on the filling
loop and fill the system, when led 10 (1.5 bar pressure) is ON, close the tap.
If locking-out persists, turn boiler OFF and call an authorised radiant service engineer.
Turning on procedure for electronic ignition
(only for U.K. and Ireland)
:
 turn on the gas cock situated under the boiler grill;
 set the ON/OFF switch 1 (see fig.1) to ON;
ELECTRONIC WATER
PRESSURE GAUGE
236
7
8 9 10 11 12 513 1 4
R
Fig. 2
Fig. 1