Is Installation of the 12 Volt Fan required on the above models?
AF (Air Flow) NE models:
These models require the installation of the 12 Volt fan to ensure that air is being drawn down the Sun-Mar dry toilet in the bathroom.
Installation of the 12 Volt Fan is only required on these models where both vent stacks have been installed, or any of the other situations exist where Sun-Mar recommends its installation.
Centrex 3000 NE:
While installation of the vent fan is not required on this model, it is highly recommended for assistance with airflow, or any of the other situations exist where Sun-Mar recommends its installation.
How Do I Install the 12 Volt Fan?
Choose a section of your vent where you will easily be able to access the fan, and connect it to the battery. Cut a suitably sized section of vent stack and insert the fan into the stack, ensuring that the piece is positioned correctly so that the fan is blowing upwards (coupling will be at the bottom). Caulk both seams with silicone for the best airflow.
Why can't I just use a computer fan?
Our fans are protected from moisture and weather, except in the case of air that is rich in salt (see above). While they may look like computer fans, they aren't.
How Do I Power the Fan?
With DC Power:
Purchase a solar panel appropriate to the wattage of your fan (5 Watt for the 1.4 watt fan, 10 watts or above for the 2.4 watt fan). You will also require a 12 Volt battery (Sun-Mar suggests a deep cycle marine battery for best results). Connect the wires on the fan (red wire positive, blue negative) to the appropriate terminals on the battery, and the appropriate wires on the solar panel to the battery. The battery will store the charge from the solar panel, ensuring continuous operation of the fan even at night or cloudy days.
With AC Power:
Purchase a 12 Volt AC Adapter from any electronics store. Cut off the female plug. Attach the positive wire to the red wire, the negative wire to the blue wire, and secure both with small wire connectors (marrettes). Plug into wall.
What Different Voltages and Watts are these fans Available In?
12 Volt 1.4 Watt Fan
This is the fan which is shipped when you order a 12 Volt Fan. It will do for most situations, and has the lowest draw.
12 Volt 2.4 Watt Fan
This fan increases the airflow level and is necessary for situations where there may be competing drafts, which is true in the case of the AF NE models and the AC/DC, dual-vented models.
24 Volt 3.3 Watt Fan
For those with 24 Volt systems.