13
14.3 Now connect the AC Voltmeter across the
two Dryer Element terminals. With Dryer
Temperature Control 'OFF', no voltage should be
present and the Dryer Pilot Light should be out. If
voltage is present, replace Dryer Temperature
Control. Turn Dryer Temperature Control to 'LOW'
position and observe Voltmeter. Line voltage shold
be present for less than 5 seconds approximately
once every 25 seconds. Turn Dryer Temperature
Control to 'HIGH' positionn and observe Voltmeter.
Line voltage shold be present for less than 5
seconds approximately once every 16 seconds. If
the above conditions are not met, replace Dryer
Temperature Control.
15.0 CHECKING FOR SYSTEM LEAKS: Unplug
unit form electrical outle. Move insulation away
from the copper tubing connections at the vessel
and Sensor so they may be observed during test.
15.1 Plug unit inot electrical outlet. Fill vessel to
proper water level, tighten door, turn Timer and
Power Switch 'ON', turn Function Switch to Dryer
'OFF' and turn Autoclave Temperature Control fully
counter clockwise. Allow unit to reach maximum
temperature and pressure.
15.2 Observe around door gasket, all fittins and
the Pressure Relief Valve for leaks. Also see
Sections 10.3 through 10.5.
15.3 If a door gasket leak cannot be stopped by
tightening door, it should be replaced. Replace
leakiy Pressure Relief Valve. If fittings are leaking,
unplug unit from electrical outlet and allow unit to
cool.
15.4 Tighten the leaking fitting up to 1/4 turn. DO
NOT tighten excessively, see Introductory
Information at beginning of Test Procedures. DO
NOT twist tubing when tightening. Use a second
tool to hold part from turning.
15.5 After repairing a leak, always retest unit in
Autoclave Cycle. If a repaired fitting leaks after
re-testing, it should be replaced. Order the
preformed copper tube sections with new
compression nuts, as necessary.
16.0 SENSOR ASSEMBLY REPLACEMENT:
Unplug unit from electrical outlet.
16.1 Remove the two wires from the Sensor
Switch.
16.2 Completely loosen the tube compression
fitting on top of the Sensor Body.
16.3 With the bottom access cover removed,
completely loosen the tube compression fitting
from the vessel and then remove the Sensor
Assembly.
16.4 Place new Sensor Assembly in positon.
Install new compression nut over Sensor Tube and
then inset tube into vessel fitting. Tube may have
to be bent slightly or vessel fitting turned to get
proper position. Tighten one complete turn after
finger tight. If retightening, turn nut 1/2 turn after
finger tight.
16.5 Retighten tube fitting from Solenoid Valve to
top of Sensor Body. Tighten 1/2 turn after finger
tight.
16.6 Replace black wire to 'COM' connection on
Sensor Switch. Replace orange wire to 'N.O.'
16.7 Test and adjust Sensor as per Section 8.
also check for leaks.
17.0 AUTOCLAVE TEMPERATURE CONTROL
REPLACEMENT: Unplug unit form electrical
outlet.
17.1 Remove black wires from T.B. Terminals #4
& #5, which lead to the controller.
17.2 Completely loosen the two compression nuts
on the back of the Control. DO NOT bend tubing
more than necessary to clear Controller.
17.3 Loosen the two set screws on the control
knob and remove the knob.
17.4 Remove the nut from the Control knob stop
and then remove the Autoclave Temperature
Control.
17.5 Install new Control in Control Panel and
replace nut on Control knob stop.
17.6 Retighten the two tube compression nuts to
the back of the Controller.
