10
INSTALLATION INSTRUCTIONS
VENTILATION OF ROOMS
The room in which this appliance is installed must be well ventilated by natural or mechanical means or
a combination of both to ensure correct combustion and the removal of spent air. The minimum
quantity of air for combustion will depend on the room volume, number of appliances and their total
power rating. The power rating of your appliance can be found by reference to the Rating Plate.
NOTE:
The actual ventilation requirements must be determined by reference to the Statutory
Regulations in force.
GAS CONNECTION
Data Label – The Data Label is located on the underside of the appliance. A duplicate label is supplied
to adhere in an accessible area adjacent to the appliance. This appliance is suitable for Natural Gas
and propane Gas; ensure that the available gas supply matches the Data Label.
Test Point Pressure – The appliance is factory set for Natural gas. The test point pressure should be
adjusted to 1.00 kPa with the relevant burners operating at maximum flame (see Table Page 7).
Natural Gas – 1.00 kPa
Propane Gas – 2.75kPa
When converting from Natural Gas to Propane ensure that the NG regulator is removed and replaced
with the Test Point Assembly. A gas regulator suitable for a supply pressure of 2.75 kPa should be part
of the gas tank supply. Replace the old data plate with one, which is suitable for the type of gas for
which the appliance has been regulated.
The gas supply must be connected by use of the ½ BSP Elbow, Seal and copper pipe and an isolation
tap fitted in an easily accessible position. For the location of the Gas Connection please refer to the
following table:
MODEL
Inlet Position
Inlet (mm)
from side
Inlet (mm)
from rear
CH311XFF
RHS Rear
30
30
CH311WOKFF
RHS Rear
35
30
CH607X CH607W
RHS Rear
30
30
CH609X CH609W
RHS Rear
30
30
CH611XFF CH611WFF
LHS Rear
50
40
CH711XFF
LHS Rear
105
40
CH911XFF
RHS Rear
55
40
CH915XFF CH915AFF
RHS Rear
40
40
CH920XFF
RHS Rear
60
45
FIG 2
The appliance as supplied is for use with Natural Gas, if it is to be adapted for LPG proceed as follows:
Isolate the appliance from the electricity and gas supplies.
Remove the pan supports and burner assemblies.
Replace the injectors with the alternative type supplied.
Use the appropriate thread sealant and check for gas soundness.
Affix the self-adhesive label to the Rating Plate to amend the Gas Category.
