hot water system the unvalved radiator(s) on the gravity circuit must
have an output of at least 1.25 kW. This is to prevent boiling in case
of pump failure. All pipework in the primary circuit must be 28 mm
diameter and the gravity flow pipe must rise continuously from the
boiler to the open vent. Two typical systems are shown in Figures 5
and 6.
If the appliance is used to heat a small central heating system then the
heat output to the room from the fire will be reduced.
Fitting a radiator in the same room as the fire is recommended as it
will allow greater flexibility in the way that the system is operated as
well as ensuring that there is sufficient heat.
Connect the heating system to the boiler ensuring that the primary
flow pipe rises continuously from the appliance to the vent. Fill the
system with water and check for leaks.
The circulating pump may be controlled by means of time switches,
room thermostats or outdoor thermostats. Radiators may be either
manually or thermostatically controlled. These controls will all work
in conjunction with the thermostat on the appliance and the low limit
pipe thermostat.
We recommend fitting a pipe thermostat onto the gravity return to
act as a low limit thermostat This should be wired into the mains
supply to the pump so that if the gravity return temperature drops
below 45º C then the pump will cut out. This will help to prevent
condensation forming on the boiler faces and will thereby increase the
life of the boiler. It will also ensure that priority is given to the
SYSTEM CONTROLS
Register Plate
With Soot Door
Alternative
Soot Door Positions
Fig. 11. Horizontal Register Plate With Optional
Vertical Rear Flue Connector
197mm
Register Plate
With Soot Door
Alternative
Soot Door Positions
Fig. 10. Horizontal Register Plate With Top Flue Connection
Register Plate
With Soot Door
Alternative
Soot Door Positions
Fig. 9. Horizontal Register Plate With Rear Flue Connection
Register Plate
Soot Door
In Side or Rear
Of Chimney
Fig. 8. Vertical Register Plate With Bricked Up Fireplace
INSTALLATION INSTRUCTIONS
®
charnwood
I S L A N D
11
Содержание Island III
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