Zephyr Vent Fan – Made in Canada by Solacity Inc.
www.Solacity.com/zephyr-vent-fan/
Zephyr Vent Fan Installation
Wiring
Many inverters and charge controllers have an auxiliary relay that is programmable to turn a Vent Fan on
or off based on the battery Voltage. These tend to come in two version: Either a constant Voltage (often
12V), and if the current rating is sufficient this can drive a (12V) fan directly. All the Fans use less than 200
mA (0.2 Amp, this is true for the 12, 24, and 48V Vent Fans).
The other version has a dry contact (a regular unpowered relay). The battery Voltage has to be wired to
the switch part of such a relay and the fan should match the battery Voltage. A 12V powered relay can
also be used to drive an additional relay to use a 24V or 48V Vent Fan. An automotive relay is an often-
used option. A 1 Ampere fuse is recommended to protect the wiring.
Plumbing
The 12V and 24V Zephyr
Vent Fans use 2” DWV
(Drain-Wastewater-Vent)
PVC pipe for both intake and
output, the 48V Vent Fan
uses 3” for the output
