19
MPC 5000 Tank Switch Installation and Operation
By installing a float switch at the top of your water tank, the watermaker can shut itself down and
fresh water flush itself when the tank is full.
Automatic operation using a float switch could potentially flood a boat or run ship’s batteries
completely dead, so it is imperative that you have a thorough understanding of the automatic
operation, and your ship’s plumbing and electrical systems. Contact Spectra for more infor-
mation.
If the tank remains full for extended periods, the watermaker will automatically fresh water flush
itself, as programmed under the Flush Interval (see pages 36 and 68).
The float switch is connected to terminals on the green 10 pin connector on the MPC circuit board,
labeled Float Switch 1. There is no polarity. Float Switch 2 is for land-based applications only, and
will be bridged with a jumper wire in marine installations. See the wiring diagram on the next page.
Spectra uses two types of float switch, the side-mounted float switch (EL-SWT-SMLV) and the top-
mounted Tank Full Switch (EL-SWT-LV). Either may be used, depending on the geometry of your
tank.
To use this mode the watermaker must be started with the Stop/Start button or the Auto Run
button. The watermaker will then fill the tank automatically and enter the Autoflush Mode, fresh
water flushing itself according to the programmed Flush Interval.
If you are using the tank full switch, DO NOT press and hold the Auto Run button, as this will en-
ter the AutoFill Mode and the watermaker will not function properly.
Note: It is possible to have tanks switches on multiple tanks. Contact Spectra factory for advice.
Summary of Contents for Ventura 150T MPC
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Page 7: ...7 Installation ...
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Page 29: ...29 Operation ...
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Page 39: ...39 Maintenance Storage and Troubleshooting ...
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Page 61: ...61 MPC 5000 Programming and Controls ...
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Page 75: ...75 Exploded Views and Part Numbers ...
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Page 84: ...84 Parts HP CYL 3 4R ...
Page 85: ...85 PL MTS 3 8X1 2S HP CYL SST HP CYL CCA SO HPP ECCB HP CYL EC HP CYL R HP CYL PT Parts ...
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