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Control Panel Features
INSTALLATION
The Fresh Air Cycler (Model FX1) is a board that interfaces
between a zone control panel or thermostat and the HVAC
unit in order to open a spring closed damper to bring in
fresh (outside Air) to the return plenum.
When installing the FX1 panel it is important to pick a
central location where it is most convenient to bring all the
wires. Most often this is near the furnace or air handler and
close to power source and the HVAC unit control, typically
located at or near the plenum.
The FX1 case and cover are made of sturdy ABS plastic and
can be mounted to any flat surface. It is recommended that
the panel be mounted to a wall or return plenum and NOT
on the furnace or supply plenum where it will be in contact
with the high heating temperatures. The panel can be
located in an attic space or in an enclosed cabinet of a
rooftop unit, provided the panel is enclosed and not in direct
exposure to the elements.
The cover easily removes from the case by pulling firmly and
separating the cover from the case exposing the circuit
board. There are 4 key-hole mounting points in each corner
of the case. The case has openings in the rear of the case
for all wiring.
OPERATION
The FX1 controls the fan signal going to the HVAC unit and
one 24VAC spring closed damper. When the FX1 gets a
signal from the zone control panel or thermostat that the
HVAC equipment is activated it will activate the fan (when
appropriate) and open the fresh air damper for the duration
of the call if the fresh air requirement for the hour has not
been satisfied.
A 60 minute timer begins to countdown as soon as FX1 is
powered. The OFF setting does not turn off the FX1 it just
keeps the damper closed regardless of a heat/fan call. If
the knob is switched to OFF from a different setting, the
timer resets back to 60 minutes and starts counting down
again.
Ventilation LED
Power LED
24VAC Transformer
Input Terminals
Fresh Air Damper Input
Terminals
Ventilation Timer Setting
Dial, Adjustable in 5
minute increments, Range
5 to 45 minutes
Input / Output Terminals
