The intended use of this package is for more aggressive venting of an enclosure, this may be cabinetry, a projector box... and that vent is roughed-in during construction (new or remodeling). It is a 4" flange which is then obround inside the wall so can run the 4" non-insulated ducting in the wall. This ducting connects to a 6 to 4" reducer and then the Inline Duct Fan which may be installed in an attic, crawlspace or utility area. It should be noted that this amount of airflow is fine for 4" ducting. Optimally the fan is then exhausted to the HVAC return vent or back into the home. It should also be noted that for venting back into the home can run to a vent that looks similar to other AC vents and the idea is the air will mix with the air in the home, thus why you vent to a larger room or hallway, and then be recycled through the HVAC system. If you choose to not exhaust this way, do be conscious of the extreme amount of air will be pulling out of the home only to be replaced by outside or attic air (very undesirable). For this reason, if are in a very mild climate then it's not so bad but if it's a hot humid climate the HVAC system could be stressed. Now if still proceed to vent to the attic or crawlspace, ensure to still connect 3-4' of ducting to the exhaust port and position like an S. This is to create pressure within the fan as the fan units are intended to run with at least some pressure.
Now for installing the fan unit, refer to the instructions for more detailed instructions and for the mounting options but basically want to isolate the fan, not have it installed to where vibrations may create noise. Typically this would mean if in an attic, to the roof rafters instead of to the ceiling joists. If on the ceiling joist, create a platform and use rubber or foam to insolate the fan.
For powering the unit. 110/220V AC is required at the fan unit and the unit has a plug for 110V. Now during construction, a 4 conductor, 18-22awg, should be run from the fan unit to the controller location. This will be hardwired to both the controller and the fan unit and the controller is powered from the fan unit (2 wires are for power, 2 for control).
For the sensor. A 2 conductor, 18-22awg, should be run between the controller and the enclosure that will be vented. The controller included with the package utilizes a remote sense and the sensor can simply be spliced to the wire (it is only an ohm reading and if the temp can be calibrated within the controller if it affects the reading).
For controller configuration please refer to the instructions for the controller.
