Ravenheat CSI 85 Installation And Servicing Instructions - page 26
5.14
PROGRAMMABLE TIMECLOCK
Instructions for use consult User’s Guide.
SECTION 6
COMMISSIONING
6.1
Each boiler has been through a rigorous
operational procedure at our factory and
should not require any further adjustment
If in the unlikely event of the appliance not
operating correctly, please turn to the Fault
Finding and Logic Sequence charts.
6.2
GAS SUPPLY INSTALLATION
6.2.1
Inspect the entire installation including the
gas meter, test for soundness and purge, all
as described in BS 6891.
6.3
ELECTRICAL INSTALLATION
Preliminary electrical systems checks to
ensure electrical safety shall be carried out
by a competent person (earth continuity,
polarity, resistance to earth). Those checks
are outlined in the «Instructions for British Gas
Multimeter» Booklet. If a fault has occurred
on the appliance the fault finding procedure
should be followed as specified under the
servicing section of this document.
6.4
INITIAL FILLING OF THE SYSTEM
Open central heating flow and return valves
Unscrew the cap on automatic air release
valve one full turn (leave open permanently).
- Close all air release taps on the central
heating system.
- 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 it only when
clear water, free of bubbles, 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 gauge. Then turn off the filling
points stopcock
- Inspect the system for water soundness
and remedy any leaks discovered
6.5
SETIING THE SYSTEM DESIGN
PRESSURE
The design pressure must be a min. 1 bar
and max. 1.5 bar. These figures are read off
the pressure gauge.
- The actual reading should ideally be 1bar
+ the height in metres to the highest point
of yhe system above the base of the
appliance (up to max of 1.5 bar).
N.B.: They safety valve is seat to lift a 3
bars (30 mt/42.5 psing).
- To lower the system pressure to the
required value remove drain poin (Fig. 93)
or drain on the heating circuit.
6.6
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.
6.7
LIGHTING THE BOILER
Before lighting the main burner make sure
that thwe 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
Timeclock and Thermostat) make sure
that they call for heat
- Turn main switch (1) to winter
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