White Knight eco 86A, Installation And Service Instructions Manual

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6. OPERATIONAL CHECK
6.1 Remove the pressure test point screw from the gas
tee connection at the back of the dryer and connect
a gas pressure gauge.
6.2 Check that the dryer control is in the 'off' position, and
that the heat switch is set to 'high'.
Remove anything from inside the drum, check that
the lint filter is fitted, shut the dryer door.
6.3 Turn on the gas, push the electric plug into the socket
and switch on the electricity supply.
6.4 Select program 9 (Timed). Check for ignition.If the gas
fails to remain lit then repeatedly open and close the
door, push the start switch and run the machine for
periods of at least 30 seconds until the air is
removed from the system and burning is continuous.
Note that gas is not lit when the drum is turning anti-
clockwise.
The flame recognition system will only
operate if the electric supply is polarity correct - live
is live and neutral is neutral.
6.5 With the gas burning ensure that the pressure is as
detailed in the Technical Data.Turn off and replace
the pressure test point screw.Check for soundness.
6.6 Switch on again and re-start so that the gas is
burning.Disconnect the flexible gas hose and check
that the solenoids can be heard to close.After 30
seconds turn on the gas and check that there is no
re-ignition.Switch the machine off and on again and
check for re-ignition.
6.7 Check that the operation of the machine does not
cause spillage of products of combustion from any
open flued gas appliance in the same room, or from
appliances in adjoining rooms, e.g.a gas fire or
central heating boiler.
6.8 In the event of an electrical fault after installation of
the appliance, preliminary electrical system checks
must be carried out (i.e.earth continuity, polarity and
resistance to earth).
6.9 IMPORTANT INFORMATION RE-FUNCTIONING
OF THE FULL SEQUENCE FLAME CONTROL
BOX.
THE FULL SEQUENCE FLAME CONTROL BOX
ON THIS APPLIANCE REQUIRES A 6-12 SECOND
RE-SET PERIOD FOLLOWING EACH
INTERRUPTION OF INPUT VOLTAGE.
6 SECONDS DELAY IS REQUIRED BETWEEN
EACH ATTEMPT TO RESTART THE APPLIANCE
FOLLOWING SWITCHING IT OFF, OR AFTER
OPENING THE DOOR.
THE CONTROL BOX WILL ONLY
WORK CORRECTLY WHEN THE ELECTRIC SUPPLY
TO THE DRYER HAS CORRECT POLARITY - LIVE IS
LIVE AND NEUTRAL IS NEUTRAL
7 AIRFLOW
It is most important that airflow to the plinth is not
restricted.
8 MAINTENANCE
This appliance does not require an annual service
unless it is required as part of a landlord's gas
safety certificate.
If you do have any maintenance activity carried out,
it should be carried out by a competent person (i.e.
registered Engineer).
9 STACKING
Instructions for stacking, if required, are supplied
with the stacking kit.
PROGRAMME
The electronic control measures dryness by the electrical
resistance method and operates relays to:a) energise
the drive motor, in foward and reverse rotation and b)
energise the full sequence flame controller.
The electronic controller determines when the selected
dryness level is reached, then turns off the heat source
and continues to rotate the drum for 12 minutes
"cool down", intermittent tumbling follows this until the
machine is unloaded - "anticrease" is indicated by an LED
(if selected).
The full sequence flame controller opens the tandem
solenoid gas valves after a delay time of about 8 seconds
and operates the pulsing spark ignition.If the flame is not
detected by the flame failure electrode within 10 seconds
then the valves are closed.The system must then be re-
set by switching the machine off and re-starting.
The heat selector switch provides options for either 60˚C,
or 50˚C, exhaust thermostat control.This results in the
burner cycling on and off giving Ionger than anticipated
drying times.Drying times vary depending on the weight
and size of the articles, type of fabric, dampness etc.
These thermostats turn off the heating towards the end of
the chosen cycle and so avoid waste of energy.The lower
temperature thermostat prevents delicate fabrics from
getting too hot with possible risk of damage.
An inlet thermostat is fitted in the ducting at the back of
the dryer.It may also operate under certain other
conditions of restriction of the air-flow, for example, an
overloaded drum or blocked lint filter.This thermostat
switches off the flame controller.This will result in the
burner cycling on and off giving longer than anticipated
drying times.
Should the thermostat fail there is an inlet cut-out
connected in circuit with the gas valves.After operation,
the cut-out can be re-set by switching OFF/ON the
mains supply for a periood, to restore heating but a service
call may be required to correct the initial fault.
The conditions of failure of the air flow, blow-back, or of
gas interruption are detected by the flame failure
electrode and the system is shut-down.
Both drum rotation and heater control are switched off
when the door is opened and switched on when the door
is reclosed, and the activate and start buttons pressed.
For programmes see chart on dryer control panel.
Note: Do not allow fluff to accumulate around the dryer.
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