28
In the event of complete MPC control failure
, the system may be operated manually by using
the manual run switch on the Electrical Box and manually opening the diversion valve.
For manual start up, switch on the Spectra-Pearson Pump and Boost Pump by setting the
feed pump switch to “RUN MAN”. Shut the unit down if the Spectra-Pearson Pump
knocks loudly or sounds rough or if air is continuously present in the intake line.
The
automatic safety controls are disabled in manual mode.
The diversion valve, an electrically operated three way valve which is normally energized
by the MPC controls to send water to the tank, will not open automatically in manual mode.
Instead, it must be opened using the mechanical override button on the valve. The button is
located on the side of the valve opposite the electrical connection and above the plumbing
fittings. Firmly
press the button in
as far as it will go and
rotate it 90 degrees Clockwise
.
This locks the diversion valve open.
Always discard the product water for the first few minutes of operation. The initial product
water from the system may not be potable. Taste the product water before sending to a tank.
To get a water sample loosen the 1/2 inch product tube fitting at the diversion valve in the
High Pressure Module or remove the tubing from the membrane outlet and collect a sample,
or collect a sample of a sampling tap—if installed. Check it with a handheld salinity meter
or taste it.
Manual Operation
In the event of a component failure
resulting in a shut down due to a false alarm, the failed
component can be overridden using the Programming Function on the display. High Pressure,
Service Prefilter, System Stalled (airlock), and Salinity Probe Failed can be defeated. If one
safety shutdown is disabled, the other safety shutdowns will still be activated. The pressure
sensors and salinity probe can also be calibrated from the display. Complete instructions are
found in Part 2 of this manual under “Programming from the Display”.
Be absolutely certain
that the alarm is false before defeating the automatic controls.
Run Manual
Toggle Switch
Diversion Valve
Diversion Valve
Manual Bypass
Summary of Contents for Farallon 1800
Page 2: ...2...
Page 15: ...15 John Guest Super Speedfit Fittings...
Page 43: ...43...
Page 44: ...44 Farallon 1800 Settings Farallon 2800 Settings...
Page 45: ...45 Float Switch Wiring...
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