Supplied By www.heating spares.co Tel. 0161 620 6677
5.13
ELECTRICAL CONNECTlONS
5.13.1
The electricity supply must be as specified
in clause (sect. 4.10).
- When controls external to the appliance
are required, design of the external
electrical circuits should be undertaken
by a competent person. In accordance
with the IEE wiring regulations.
It is essential that all external controls
must be
volt free.
Factory fitted internal wiring must not be
disturbed when wiring external controls.
- To gain access to the electrical box
remove the front panel of the case as
described in clauses (sect. 5.4.1) and
the instrument panel as described in
clauses (sect. 5.4.3).
- The terminals are easily visible on the
front of the electronic control board (Fig.
48).
- Heat resistant flexible cable is fitted
between the isolator and the terminal
block. It is a 3 core cable of 0.75 mm
2
(24x0,2 mm) to BS 6500.
Make sure all wires to the appliance are
routed away from sharp edges and hot
surfaces.
The cable must be fastened with its
cord anchorage and connected so that
should the cable slip from the anchor-
age the current carrying conductor does
not become taut before the earthing
conductor.
Securely tighten all terminal screws and
arrange the cable with slack between
the cord anchorage and the terminal
block.
WARNING: If the supply cord is dam-
aged, it must be replaced by a service
engineer (supply cord available from
Ravenheat Manufacturing Ltd).
PROGRAMMABLE TIME CLOCK
Instructions for use Consult User’s Guide.
SECT ION
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 lNSTALLATlON
Preliminary electrical system 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 <<lnstructions 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 docu-
ment.
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 permanent-
ly).
- 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 at least
1.5 bar registers on gauge. Then turn off
the filling points stopcock.
-
Inspect the system for water soundness
and remedy any leaks discovered.
