Advertisement
Winter and Summer Operating Modes
In the 'winter' operating mode, the boiler will produce both Central
Heating and Domestic Hot Water. In the 'summer' operating mode, the
boiler will produce only Domestic Hot Water.
Using the knobs on the control panel, the user can select 'winter'
or 'summer' operating mode. Keeping the knob "C" at the "0"
position selects the 'sum-
mer'
operating
mode.
'Winter' operating mode
may be selected by posi-
"C"
tioning
the
knob
between the min. and max.
settings.
Adjusting the Heating
It is possible to set the temperature of the
heating system by adjusting the knob "C".
By positioning the indicator somewhere
between 1 and 9, a temperature may be
obtained which varies from approximately
40˚C to about 80˚C.
External (Room) Thermostat Control
If an external (room) thermostat is installed, it is recommended
that the temperature of the heating system be set by means of
the "C" knob, leaving it at MAX position in order to obtain the
best performance from the boiler and to allow the regulation of
the external temperature to function efficiently.
Setting the Hot Water for Domestic Use
Both in the winter and summer mode, the temperature of the
domestic hot water may be adjusted by
using the "B" knob. A delivery temperature
for the water may be chosen in a range from
36˚C to about 56˚C, depending on the flow
rate of the water and the position of the knob
between 1 and 9 settings.
Turning Off the Central Heating
To turn off the Central Heating, rotate the
"C" knob to the "0" position.
The boiler will stay in 'summer' mode, pro-
viding Domestic Hot Water on request.
Turning Off the Boiler
To turn the boiler off, rotate the selector knob
"A" to the "0" position (OFF); the respective
green L.E.D. "F" will go off. Close the gas
cock located under the boiler and turn the
electricity supply switch (located outside the
boiler) to the OFF position.
Supplied By www.heating spares.co Tel. 0161 620 6677
summer
winter
C
C
C
F
A
3. Boiler Shutdown Situations
The boiler is equipped with safety devices that intervene in cer-
tain situations and shut it off. Most of these situations are commu-
nicated by means of the L.E.D.s and at times the user may be
able to remedy them.
Shutdown Due To Ignition Failure
In the event that the automatic ignition of the burner has failed, the
red L.E.D. "D" will illuminate. In order to reset the ignition, the but-
ton "G" must be pressed and released. Should the boiler fail to
ignite a second time, check that the external gas cock is open. If
the problem persists, contact an Authorised Service Centre.
D
Shutdown Due To Overheating
In the event that the safety limit is exceeded for the temperature
of the water in the boilers exchanger, the thermostat shuts off the
boiler and the red L.E.D. "H" illuminates.
To remedy this situation, wait a few minutes to allow the exchanger
to cool down, then press and release the reset button "G".
If this situation occurs frequently, contact an Authorised Service
Centre.
Shutdown Due To Insufficient Circulation
If the boiler is off, one possible cause for this state is an insuffi-
cient pressure of water in the system.
Check the system pressure on the pressure
gauge "J" and if it is less than 0.5 bar, con-
sult your installer for checking and refilling the
system.
If the boiler does not start up again, contact
an Authorised Service Centre.
If there are frequent drops in pressure within
the system, have a plumber check the heating system for possi-
B
ble water leaks.
Temporary Shutdown Due To Defective
Discharge of Exhaust Fumes
The boiler is fitted with safety devices, which in the event of a
defective discharge of exhaust fumes, automatically interrupts
the gas supply, thereby shutting off the boiler.
The shut-off of the boiler is temporary and is indicated by the illumi-
C
nation of the yellow L.E.D. "E" for a period of about 15 minutes.
Once this time period has passed and the discharge state of
exhaust fumes has returned to normal, the boiler automatically
turns back on.
Important!
If this situation occurs frequently, contact an Authorised Service
Centre. so that they may check that the exhaust fumes are being
expelled correctly and that the area is ventilated properly.
Anti-frost Device
The boiler is fitted with a device which, in the event that the water
temperature falls below 8˚C the pump activates and runs until a
temperature of 18˚C is attained. In the event that the water tem-
perature falls below 3˚C, the diverter valve switches to Domestic
Hot Water and the burner fires and runs on minimum power until
a temperature of 33˚C is attained.
This device is only activated when the boiler is operating perfectly and
- the system pressure is sufficient;
- the boiler is powered electrically;
- gas is being distributed.
4
G
H
J
Advertisement
