Westinghouse WVG613SC, Руководство пользователя

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11
INSTALLATION
Operating Pressures
Supply and operating pressures for various gases and
corresponding injector sizes for each burner.
GAS TYPE
SUPPLY
PRESSURE
(KPA)
NOMINAL
TEST POINT
PRESSURE
(KPA)
OVEN
INJECTOR
NG & SNG 1.13 - 5.00 1.00 1.50
UNIVERSAL
LP
2.75
2.75 0.82
Testing the operation of the appliance
This product has an Electronic Burner Control with
a flame safeguard system, which includes a safety
shutdown function that operates when the presence of a
flame is not detected within a prescribed period.
It may be necessary to interrupt the operation of the
control system in order to facilitate purging of air from
the appliance.
During the purging procedure the product should be
closely monitored to ensure that the ignition spark can
be observed through the round hole in the left hand side
of the cover on the bottom of the oven, and that the
solenoid valve can be heard to open and close.
1. After connecting the gas and leak testing the gas
connection, plug in the service cord and turn on
the power.
2. Set the time of day clock (if fitted).
3. Purging procedure:
a. Turn on the oven.
b. The unit will commence sparking and the
solenoid valve will open for a short period. If a
flame is not established, the controller will shut
the solenoid valve and stop sparking, then pause
for a moment before repeating this cycle. At this
point if there is still no flame, the control system
will go into safety shutdown.
c. If the control system does go into safety
shutdown, turn off all the controls and switch off
the power supply for a few seconds.
d. Then turn the power back on and repeat steps 2.
to 3.c. until the gas ignites.
NOTE: If the power supply is not switched off, then a delay
of 90 seconds will be required after each safety shutdown
before a new ignition cycle can be attempted. For more
details about how the Electronic Burner Control works
refer to ‘Electronic Burner Control’.
4. Check the manometer zero point is correct.
5. Connect the manometer to the cooker pressure
test point. This is located on the regulator or LPG
inlet fitting.
6. Check the operating pressure (refer table above).
For LPG Cookers: Adjust the regulator if necessary
(this may be remote from the cooker).
For NG Cookers: The outlet pressure should not vary
from the nominal outlet pressure of 1.00kPa by more
than ±0.20kPa.
If the regulator apppears to not be performing
satisfactorily, then check the following points:
a. 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
insufficient flow 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 1.13 – 5kPa.
b. Check that the regulator has been fitted to the
gas supply line in the correct orientation, the
arrow on the base of the body indicates the
direction of gas flow.
Once these checks have been completed, if the
regulator still fails to perform in a satisfactory manner
it should be replaced.
7. Observe the flame appearance on the burner. If it
is much larger or much smaller than expected, the
injector size may require checking. Where a flame is
unsatisfactory refer to the servicing instructions and
correct the fault if possible.
8. Check the operation of the timer, light and fan.
If the appliance cannot be adjusted to perform correctly,
inform the customer of the problem and affix an
appropriate warning notice to the appliance. If the
fault appears to be dangerous, the appliance should be
disconnected. However, if only a minor fault exists,
the customer may wish to use the appliance while
awaiting service.
The customer should be advised that, in the event of a
fault, they should contact the manufacturer’s local service
organisation or the retailer from whom the appliance
was purchased.