Ravenheat HE 25 S COMPACT, Инструкция по использованию, установке и обслуживанию

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6.3 INITIAL FILLING OF THE SYSTEM
Open central heating flow and return valves
Unscrew the cap on automatic air release valve
positioned on the top of the pump housing one
full turn (leave open permanently).
- Close all air release taps on the central
heating system. Press the info button to
display the current pressure (code E08 will
display if the pressure is nil/too low).
- Gradually open stopcock at the filling point
connection to the central heating system
until water is heard to flow.
- Starting with the lowest radiator open each
air release tap in turn. Close when the
water is clear, free of bubbles and flows
out. In the same way release air from any
high points in the pipework.
- Continue filling the system until 1.5 bar
register on digital display. Press the ESC
button once again to return to the main
screen.
Then turn off the filling points stopcock.
- Inspect the system for water soundness
and remedy any leaks discovered.
6.4 SETTING THE HEATING SYSTEM DESIGN
PRESSURE
The design pressure must be a min. 1bar
and max. 1.5 bar. These figures are read
on the digital display by pressing the INFO
button.
The actual reading should ideally be 1 bar +
the height in metres to the highest point of
the system above the base of the
appliance (up to max of 1.5 bar).
N.B.: The safety valve is set to lift at
3 bar (30 m/42.5 psi).
To lower the system pressure to the
required value unscrew the drain
point (fig. 36) or drain on the heating
circuit.
6.5 FILLING THE HOT WATER SYSTEM
Close all hot water draw-off taps.
Open the cold water inlet cock.
Slowly open each draw-off tap until clear water
is discharged.
6.6 LIGHTING THE BOILER
Before lighting the boiler make sure that
the heating circuit flow and return valves are
open and also that the cold water input cock
is open.
- If external controls are installed (E.g. time
clock and thermostat) make sure that they
are calling for heat.
- Select winter function, the winter icon in
digital display will be flashing (item 3 fig.
2).
- To select the minimum heating temperature
press the radiator button.
IMPORTANT:
Before lighting the boiler select the minimum
central heating temperature. This must be left
at minimum for approx 5 mins to purge air
safely from the boiler.
Fig. 36
Fig. 35
- To select the minimum heating temperature
press the radiator button.
- Press arrow up and arrow down buttons to
adjust.
- The digital display shows the current set
temperature in central heating.
- After a few seconds the digital display shows
the central heating temperature in demand
(CH icon flashing, item 3 fig. 2).
- The fan starts and after a few seconds or
so the digital led display will show that the
ignition has commenced.
- NOTES: Put the digital clock in demand
position.