18
10. Observe the boiler now filling with water to cover the heating
elements. When water has reached the pre-set limit, the
excess will discharge to drain. Check the water drains freely
and does not back up into the boiler level control.
11. Switch the CLEAN button off by pressing it a second time. The
switch light goes out.
12. The heaters will now warm up and eventually run at a red
glow. If the flow rate is insufficient, the heaters will not switch
on. This will require adjustment of the mini valve assembly to
be opened further. After about 2 – 3 minutes of operation
distilled water will emerge from the outlet pipe falling into the
collection reservoir.
13. To avoid excess wastage of coolant water, make further
adjustments to the mini valve assembly. Slowly reduce the flow
rate until the flow control switch switches off the heaters,
then increase the flow until the power is restored.
14. Refit the Perspex screen.
15.
Safety Cut-Outs
– All Aquatron water stills are protected by
the following safety devices.
Flow Control Switch
– Monitors the flow of coolant water
into the still and shuts off the heating element if the flow is
insufficient.
Thermostat Cut-Out
– In normal operation the water within
the glass will be at 100°C. In single fault conditions, i.e. in the
event of water supply failure, the content will increase to
112°C where upon a resettable thermostat will operate. Once
switched, the thermostat has to be manually reset. This is
achieved by unscrewing the black knob located inside the
cabinet and pressing the reset button.
Reservoir Control
– Is positioned on the collection reservoir
and switches off both the electricity and water supplies when
the reservoir is full of distillate water. The water supply is shut
off around 7 minutes after the reservoir is full to allow the
heating element to cool.
It is recommended that the operation of the flow switch and
reservoir control is checked on a regular basis.
a.
Simulation of Mains Water Supply Failure
Turn off the mains water supply at the tap. This should switch
off the heating element. Turning the tap on again will switch
the heater on.
b. Simulation of Reservoir Full Condition
Lower the glass pressure bell of the reservoir water level
sensor into the distillate to a depth of 150mm. This will switch
off the heating element immediately and the cooling water
after 7 minutes. Raising the bell will cause both to be
re-supplied.
16.
Switching Off
– Push the CLEAN switch to the ON position.
Wait until the residual heat contained in the heating element
has dispersed and no boiling is evident. Turn off water supply.
Push ON/OFF switch to OFF position. Isolate from mains
electricity supply.
A8000 Spares
Boiler
WB8
Funnel
WF48
Condenser
WC48/M2
‘Mains On’ Green Indicator
700691(S)
‘On/Off’ White Switch
700988(S)
‘Reservoir Full’ Amber Indicator
700987
‘Clean’ White Switch
700988(S)
Reservoir Pressure Switch
WPS
Heater Terminal Block
A4000/HTB
Solenoid Assembly
A4000/SA
Water Flow Sensor Assembly and Hoses
I/A8000HK/1
Condenser to Boiler Level Control Hose Assembly
I/A8000HK/2
Reservoir Water Level Sensor
WLS
Mains Water Mini Valve Assembly
7001059(S)
Thermostat Glass Tube
WTT48
Thermostat
WT8
Boiler Level Control
WL48
Boiler Plastic Coupling
WBC1
Heater Assembly
A4000/HA
Heater Assembly 220V
A4000/HA220
Boiler Retaining Spring
700007
Distillate Output and Boiler Level Control
Drain Hose Kit
I/WH48/2/B
Rotaflow Stop Cock Assembly
A4000/RCOCK
Relay Assembly
A4000/RA
PCB
700804(ES)
6 Way Electrical Terminal Block
A4000/ETB
Ceramic Terminal Block
A4000/CTB
5 DIN Socket Assembly
A4000/DIN
Boiler Vapour Tube Sealing O Ring
I/M502
Boiler Vapour Tube Stabilising O Ring
I/QR38/24
Black Phenolic Screw Cap
I/QC38/25
Wall Mounting Bracket
M510G
