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within the boiler.
DOMESTIC
CENTRAL HEATING MODE:
When heating demand is requested the boiler
will fire automatically. An integral pump is
then energised and hot water from the boilers
primary circuit is circulated around the
heating systems pipe-work and radiators. The
heat output from the boiler is automatically
adjusted by the boiler's internal control unit to
match the heating demand. As the water
temperature of the heating system increases
the gas input to the burner decreases,
conserving energy and increasing efficiency.
When the demand for heating no longer exists,
either the room thermostat is satisfied or the
heating period has ended, the burner will shut
down and the boiler will revert to stand-by,
waiting to respond to the next heating
demand. The integral pump may continue to
run after shut down for a short while to
dissipate any excess heat within the boiler.
44
Please Note. When domestic hot water is called
for during the heating mode, the boiler will
automatically revert to domestic hot water
mode until the demand for hot water ceases.
NOTE: Depending on the boiler set up there
may be a delay of 45secs before the boiler re-
fires.
HOT
WATER
AND
Figure 2
ACCESS TO THE BOILER CONTROLS
The boiler controls are found behind the control
panel door, sited at the bottom of the boiler's front
case. To open: press the doors retaining push
catch just above the display screen. (figure 2)
BOILER CONTROLS
The function and operation of the main controls
located on the control panel fascia (figure 3) is as
follows:
(
1.
Function switch.) This is the boilers
main operating switch. In the
position the boiler is in stand-by mode
and power supply is ON. For the boiler to
operate the switch must be in the
position.
When switched to the
boiler will operate only to supply
domestic hot water. (Summer use) For
the boiler to operate to give both central
heating and domestic hot water the switch
must be in the
2.
(Central Heating temperature control.)
The position of this control dial will
determine the temperature of the water
delivered to the radiators. The water
temperature can be set from a minimum
of 30º C (anticlockwise stop position) to a
maximum of 85º C (clockwise stop
position.)
3.
(D.H.W. temperature control) The
position
of
this
determine
the
domestic hot water delivered to the taps
or shower unit. The water temperature
can be set from a minimum of 35ºC
(anticlockwise
maximum of 64ºC (clockwise stop
position.)
Page 43
solaris 24PC, 30PC
or
position the
position.(Winter use)
control
dial
will
temperature
of
the
stop
position)
to
a
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