NuAire ILM 125S, User Manual

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To set the fan speed (air capacity) rotate the speed control knob in the same way. The fan functioning logic may be based
on temperature or timer controls:
temperature‐based functioning (model ILM XXX U) is used to keep air temperature to within 2 °C. In this case the fan
switches are rare. The fans switches to maximum speed as air temperature reaches the set point.
As air temperature drops down 2 °C below the temperature set point or if the initial temperature is below the set point
the fan operates with the set speed.
timer‐based functioning (model ILM XXX U1) is used for exact air temperature control. The speed switches are more
frequent as compared to the temperature‐based functioning logic, but one speed interval continues at least 5 minutes.
As air temperature exceeds the set point, the fan switches to the maximum speed.
As air temperature drops down below the temperature set point, the timer starts 5 minutes countdown and then the fan
switches to the set lower speed. If the initial air temperature is below the set point, the fan operates with lower speed
from the start.
ILM XXX P is equipped with a speed controller that enables switching the fan on/off, smooth speed (air flow) control from
minimum to maximum value (Fig. 3
1 )
MOUNTING
The fan is designed for horizontal and vertical installation on the floor, on the wall or on the ceiling (Fig. 2). The fan
may be operated as a single unit or included into parallel.
Be sure to provide on the intake side:
a straight air ducts segment on the intake vent minimum 1 m long for horizontal installation;
an outer hood to prevent water ingress inside the fan for vertical installation.
The exhaust spigot must always be connected to the air duct.
The fan mounting steps are shown in Fig.
3 –1 0 and 2 3 –2 8 .
The wiring diagrams are shown in Fig. 1 1 –2 2 .
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