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25
Hex nut
assembly,fully
screwed down
Hexnutassembly,
removed
from regulator
and insert
disassembled
Insert
oriented
for LPG
operation
Figure 10
Insert
oriented for
natural gas
operation
2. Unscrew the hex nut from the regulator. The hex
nut,brasswasherandnyloninsertwilldisengageas
an assembly.
3. Unclip the nylon insert and nut assembly by rotating
theinsert¼turn,andpullingitfree.
4. Turn over the insert and clip back into position.
5.Retthehexnutassemblytotheregulatorensuring
that it is fully screwed down. The regulator is now
set for connection to LP.
6. Turn on the gas supply and at each new connection
check for leaks using soapy water: each hotplate
valveshouldbeturnedon,oneatatime,andthe
injector hole blanked off for several seconds.
7.Theoperationoftheregulatorcanbeconrmedby
connecting a manometer to the pressure test point
located on the side of the regulator body adjacent to
the outlet.
With the appliance operating check the
outlet pressure:
•whenallburnersoftheapplianceareoperating
atmaximum,
•whenthesmallestburneroftheapplianceis
operating at minimum.
Under these conditions the outlet pressure should not vary
from the nominal outlet pressure of 2.60kPa by more the
+/-0.52kPa.
8. If the regulator appears to not be performing
satisfactorily then check the following points:
•Iftheoutletpressureisconsistentlytoolowthen
the inlet pressure may be too low and adjustment
ofanupstreamregulatormaybeneeded,oran
upstreamregulatororvalvewithinsufcientow
capacity may be present in the gas supply line.
If this is suspected then it may be necessary to
repeat the checks whilst measuring both the
inlet and outlet pressure to determine if the inlet
pressure is in the range 2.75 – 7.00kPa.
•Checkthattheinserthasbeenttedcorrectlyas
perdiagramgure10.Checkthatthehexnutis
fully screwed down.
•Checkthattheregulatorhasbeenttedtothe
gassupplylineinthecorrectorientation,thearrow
on the base of the body indicates the direction of
gasow.
Oncethesecheckshavebeencompleted,ifthe
regulator still fails to perform in a satisfactory manner it
should be replaced.
9.Onebyone,turntheknobstominimumandscrew
in the bypass screw (accessible when the knob is
removed) until a small stable flame results. Turn the
knob to maximum and then back to minimum to
ensure that the correct minimum flame is maintained.
10.AttachtheLPGstickertothecooker,nearthegas
supply inlet. Cover the Natural Gas label that is
factorytted.
Use of hose assembly
Ensure that the hose assembly is restrained from
accidental contact with the flue outlet of an underbench
oven or any other hot surface of an adjacent appliance.
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