Buy The AAF-Herman Nelson shaft Parts

AAF-Herman Nelson designs its unit ventilators to adapt to changes in temperature as they occur. Generally a shaft comprises of a ‘fan’ and a ‘rota’, but the AAF-Herman Nelson shaft part is more developed. In high humidity conditions, a device denoted as the Active Dehumidification Control or else abbreviated as ADC is used. This device contains a humidity sensory gadget which directs the device to cool past the normal set point in order to eliminate excess moisture. This device uses hydronic/electrical heat in reheating the discharge moisture while installing back the normal room temperature. AAF-Herman Nelson refers to this process as passive dehumidification.

The AAF-Herman Nelson shaft part is generally equipped with a face as well as bypass damper control which provides increased protection from coil freeze-up. The shaft is constantly supplied with hot water which passes through a coil. The principle of latent heat in flowing water is applied here.

The AAF-Herman Nelson shaft part is usually double walled with an insulated outdoor air. A micro-Tech 11 control in the shaft helps configure the amount of reheating required in the shaft with the help of an installed valve-controlled temperature modulator. The temperature modulator manages the room humidity level. When the humidity level increases past the pre-set value, the modulator opens its valves to release chilled water. This helps de-humify the out-door mixture. This is followed by opening of the re-heat modulating water valve or the engagement of an electrical heat to warm the air coming out of the cooling coil. This process helps restore normal room temperature. The AAF-Herman Nelson shaft part comprises of a sampling chamber and various heat transfer coils for sensing and regulating room temperature respectively. The fan motor is located away from the heating coil to reduce heat exposure for a prolonged life.


AAF-Herman Nelson manufactures its ventilators in order to be flexible and sensitive to temperature fluctuations. These ventilators are unit ventilators and they monitor temperature changes while they occur. Usually a shaft is comprised of a rota and a fan, but the AAF-Herman Nelson shaft is more advanced than the average shaft mechanism. During conditions of high humidity, the Active Dehumidification Control, otherwise abbreviated as ADC, can be utilized. The device is comprised of a gadget that is used to sense humidity which signals the device to cool down the ordinary set point in order to get rid of extra moisture. The mechanism uses electrical and hydronic heat when it reheats the moisture that is discharged when installing the ordinary temperature of the room. This process is an important one, and AAF-Herman Nelson calls this passive dehumidification.

The AAF-Herman Nelson shaft component comes with a face in addition to a bypass control for the damper, which offers greater protection from the freeze-up of the coil. Hot water is supplied consistently to the shaft, and this hot water them moves through a coil. This coil uses the principle of latent heat in order to facilitate flowing of water.

The AAF-Herman Nelson shaft component is made with double walled technology and outdoor air is insulated with this component. MicroTech II controls in this shaft provides assistance with configuration of the reheating material that is needed for the shaft along with the help of a modulator that controls temperature. The temperature modulator maintains the humidity level of the room. When the level of humidity increases higher than the value that has been preset, the modulator is opened to let out water that has been chilled. This action helps to dehumidify the mixture that is outdoors. The modulating water valve then opens and electrical heat warms the air that the cooling coil lets out. The process of modulating water in this way restores the room's ordinary temperature and helps return it to normal. The AAF-Herman Nelson component part is comprised of a chamber for sampling and a variety of heat transfer coils that are used for sensing and modulating room temperature. The motor of the fan is found in a separate place from the heating coil in order to lessen the exposure of heat in order to ensure long life. Doing this will help the part last longer and provide greater durability for the user.