10
5.3 If installing a new switch, test by repeating
steps 5.1 and 5.2.
6.0 FUNCTION SWITCH: When this switch is in
the Dryer 'ON' position, the Drying Element
circuitry is enabled and autoclave circuits disabled.
When in Dryer 'OFF' position, the autoclave
circuitry is enabled and Dryer circuits disabled.
6.1 To test, connect and AC Voltmeter across T.B.
Terminal #2 and center wire connection at the
Function Switch. Turn the Timer 'ON' and turn the
Power Switch 'ON'. the full line voltage should be
present. If not see Sections 1 through 5.
6.2 Move meter test lead from enter wire to top
wire connection on Switch. Turn Switch to Dryer
'OFF' position. Full line voltage should be present.
Now turn Switch to Dryer 'ON' position, No voltage
should be present. If these conditions are not met,
replace Switch.
6.3 Move meter test lead from top wire to bottom
wire connection on Switch. With Switch in Dryer
'ON' position, full line voltage should be present.
Turn Switch to Dryer 'OFF' position; no voltage
shold be present. If these conditions are not
present, replace switch.
7.0 SENSOR: (Thermal Switch, Factory set to
103°C) The sensor is a switch which activates a
latching relay which inturn emergizes (closes) a
solenoid valve to stop the vessel from purging
when the purging steam reaches 103°C.
7.1 To test, fill vessel to proper water level, tighten
door, turn Function Switch to Dryer 'OFF' position,
turn Timer and Power Switch 'ON'. Temperature
light should be on now. Connect an AC Voltmeter
across T.B. Terminal #2 and the black wire
connection on the Sensor Switch. Full line voltage
shold be present. If not, check for loose wires at
terminal block. Move meter test lead from black
wire to orange wire connection on Sensor Switch.
If line voltage present, replace Sensor Assembly.
No voltage shold be present until vessel
temperature reaches 103°C. It will take
approximately minutes for the vessel to reach this
temperature from ambient. Observe temperature
gauge on door while unit is heating. Meter should
display a change from zero volts to full line voltage
when temperature gauge reaches 103°C±1°C. If
Sensor does not function properly, see Section 8.0
(Sensor Adjustment) before replacing Sensor. If
Sensor activates at a low temperature, turn Sensor
adjusting screw 1-1/2 turns clockwise before
proceeding with adjusment procedure. See Figure
2 for adjustment screw location and use and
electrically insulated screwdriver if unit is plugged
into electrical outlet.
8.0 SENSOR ADJUSTMENT: The Sensor is set
at the factory (near sea level) to close the solenoid
at 3°C above the boiling point of water. Since the
boiling point will vary with altitude the Sensor may
need adjustment when setting up the unit for
operation at much higher elevations. Note the
applicabel temperature on the following chart.
8.1 If vessel is hot, let cool for 10 minutes. Refill
vessel to proper water level, tighten door, turn
Function Switch to Dryer 'OFF' position, turn Timer
and Power Switch to 'ON'. Vessel wll begin to heat.
8.2 Connect and AC Voltmeter across T.B.
Terminal #2 and the orange wire connection on
the Sensor Switch. The meter should indicate no
voltage present. Observe the Temrperature Gauge
while the vessel is heating . When the Temperautre
Gauge just reaches 3°C above the local boiling
point of water, turn the Sensor adjusting screw
counterclockwise until meter indicates full line
voltage. An audible click of the Solenoid Valve
closing also indicates line voltage is present. Now
turn Power Switch 'OFF'.
8.3 Repeat Step 8.1 and 8.2 to confrm that the
Sensor Adjustment is now correct. If during Step
8.2 the Sensor switched befor the desired
temperature, turn the Sensor Adjusting Screw 1-
1/2 turns clockwise and repeat Steps 8.1 and 8.2.
BOILING TEMPERATURE OF WATER VS. ALTITUDE
ALTITUDE
(METERS)
TEMP. °C
ALTITUDE
(FT.)
TEMP. °F
0
100
0
212
150
99.5
1000
210.1
300
98.9
2000
208.3
600
97.9
3000
206.5
900
96.9
4000
204.6
1200
95.9
5000
202.8
1500
94.8
6000
201.0
2000
92.9
7000
199.3
