Table of Contents
Advertisement
Supplied by HeatingSpares247.com
3. Boiler Characteristics.
3.1 The Heat Line boiler is a fan flued, wall-
mounted combination boiler that supplies both
central heating and mains fed domestic hot
water. Being room sealed the boiler may be
installed in any room without the need for
purpose made ventilation.
boiler is installed in a compartment it is
recommended
ventilated for cooling purposes. A functional
diagram of the boiler's principal components
is given in figure 1, page 7.
3.2 An electronic control unit, consisting of a
PCB which includes ignition module provides
direct burner ignition and flame supervision
along with continuous modulation of the
burner's gas supply.
3.3 An interface unit, which includes boiler
adjustment potentiometers and fault display
codes provides easy serviceability of the
boiler.
3.4 Heat transfer to the boiler's primary
hydraulic circuit is obtained via a primary, gas
08
to water heat exchanger contained within a
hermetically sealed combustion chamber. A 24
volt, modulated speed fan blows the products
of combustion from the combustion chamber
to outside air via an associated flue system.
3.5 A secondary heat exchanger allows the
instantaneous transferral of heat from the
primary hydraulic circuit to water destined for
domestic hot water use. The secondary heat
exchanger is sized so as to minimise thermal
shock and is protected against the build up of
lime scale by limiting the D.H.W. outlet water
temperature to a maximum of 60°C.
3.6 An integral pump located in the boilers
main hydraulic circuit circulates water through
the primary heat exchanger to either the
central heating circuit or D.H.W. heat
exchanger, depending on the demand. In the
event
of reduced
circulation in the central heating circuit, a
system by-pass should be fitted, in accordance
with current legislation as far away from the
boiler as possible.
However, if the
that
the
compartment
or
interrupted
water
Note:
It is no longer
permissible to utilise a non-thermostatic controlled
radiator as a by-pass.
3.7 Room temperature can be controlled by the
use of an external room thermostat or temperature
regulator. Note connection of the room thermostat
is dependant on the operating voltage of the
thermostat. See section 9.4 & 9.5 for details.
is
3.8 The C H system temperature can be adjusted
automatically to balance heat demand, dependant
on the outside temperature, if an outdoor sensor is
connected directly to the main PCB. Call Heatline
Technical Services for further assistance.
3.9 The boiler incorporates an integrated clock,
which allows the setting of central heating periods
and the boiler's control panel incorporates an LCD
display, which indicates the state of operation and
fault defect codes.
4. Operation
4.1
Using the operating switch the boiler can be
set to operate either on domestic hot water
only or domestic hot water and heating.
Note:
Domestic hot water demand draws
preference over heating. During heating
periods the boiler will automatically revert
back to heating mode, after a draw off of hot
water, but there will be a 45sec delay if the
No.3 dipswitch is set to the OFF position.
See fig 19 page 27.
4.2 Depending on demand water is either diverted
via the three port valve to the secondary water-
to-water heat exchanger for domestic hot
water or directly to the heating system.
4.3 DOMESTIC HOT WATER MODE:
On opening a hot water faucet the boiler
automatically responds to fire the boiler and
supply the water-to-water heat exchanger with
hot water via the three port valve, located on
the hydro-block.
control unit automatically modulate the
burner's output to maintain the required
temperature at the faucet.
Page 8
solaris 24PC, 30PC
The boilers electronic
Hot water will
Hide quick links:
Advertisement
Table of Contents
