Rangemaster CLASSIC 110 GAS FSD - Manual (Page 23)

23
IMPORTANT
Flexible hose must be suitable for 70°C rise when
the supply connection is above 610mm from the
floor. For LPG, a suitable hose for the gas type and
pressure must be used.
If in doubt contact, your supplier.
Screw connect the threaded end of the hose into the
gas inlet in the underside of the connector block on
the back of the cooker.
After completing the gas connection, check the
cooker is gas sound with a pressure test. When
checking for gas leaks do not use washing up
liquid - this can corrode. Use a product specifically
manufactured for leak detection.
Pressure testing
The gas pressure can be measured at one of the
hotplate burner jets (NOT a Wok burner). Make sure
that the cooker is not connected to the electricity
supply. Lift off a burner head. Fit the pressure gauge
to the jet. Turn on one of the other burners and light
it with a match. Turn on the control for the hotplate
burner to which the pressure gauge is fitted. Press
in the knob to allow the gas through and register the
pressure on the gauge.
For Natural Gas cookers the pressure should be
20mbar/25mbar
For LP Gas cookers the pressure should be
28/30mbar for Butane
37mbar for Propane.
Reassemble burner top, making sure it is reassembled
in the correct way on the burner body.
Electrical Connection
WARNING: THIS COOKER MUST BE EARTHED.
All external wiring must comply with the Regulations in
force and any regulations for the Electrical Equipment
of Buildings. Connection to the electrical supply can be
made with either a plug and socket or be permanently
wired via a double pole switch. The cooker is supplied
with a 3 core cable 2m long. If a replacement cable is
fitted it must be 250v high temperature PVC (85°C),
1mm 2 . Should the plug not fit the socket in your home,
it should be removed and replaced with a suitable
plug. Note: If a plug is fitted which is not suitable, it
must be cut off and disposed of properly. To avoid the
risk of electrocution, the plug must not be left where
children might find it and plug it into a supply socket.
IMPORTANT The wires in the mains lead are coloured
in accordance with the following code:-
GREEN AND YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
Electrical checks
EARTH CONTINUITY CHECK
The cooker must be disconnected from the power
supply. Set your meter to (ohm) on the X1 scale and
adjust to zero if necessary.
Test the leads from any of the cooker’s earth points
(e.g. inside electric box cover) - to the earth pin on
the cooker’s plug - resistance should be less than
1 (ohm). If it is not, check all the earth wires for
continuity. Check that all contacts are clean and
tight. Re-check. If the resistance is still greater than
1 (ohm) there may be a problem, consult a qualified
electrical engineer.
POLARITY CHECK
The cooker must be connected to the power supply.
Your meter should be set on 300V ac scale.
Test at the cooker terminal block:
1. Test leads from L to N. Your meter should read approx.
220-240V ac.
2. Test leads from L to E. Your meter should read approx.
220-240V ac.
3. Test leads from N to E. Your meter should read
approx. 0-15V ac.
If the readings are different from these values there
is an electrical fault. Rectify any fault and repeat the
test. If necessary repeat the test at the supply system
socket/spur - if the fault also occurs at this stage then
there is a house system fault which requires attention
by the Electrical Authority.
The customer should be warned NOT to use the
appliance until this examination has been carried out.
Hotplate check
Check each burner in turn. Each burner has a flame
safety device (FSD) that stops the flow of gas to the
burner if the flame goes out.
For each burner, press ignition switch on facia panel
and push in and turn the knob to the solid flame
symbol ( ).
Keep holding the knob pressed in to let the gas
through to the burner for few seconds. If, when you let
go of the control knob, the burner goes out, the safety
device has not held in. Turn the control to the off
position and wait one minute, then try again this time
holding in the control knob for slightly longer.
Grill check
Open the grill compartment door.
There is an FSD which stops the flow of gas to the
grill if the flame goes out. Turn the knob to the large
flame symbol ( ). Press in the grill knob. This lets gas
through to the burner. Keep holding the knob pressed
in and press the igniter button or light with a match.
Keep holding the button for about 10 seconds
If when you let go of the control knob the burner goes
out, the safety device has not held in. Turn off the grill
and wait one minute then try again this time holding in
the button for slightly longer.