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Inline Fan Operation and Settings Guide

Inline Fan Overview:

An inline fan is a versatile ventilation system that allows users to control its speed based on specific conditions. The fan can be adjusted in three distinct ways, offering flexibility in operation.

 

a. Temperature and Humidity Control: Users can configure the fan to respond to temperature and/or humidity changes. By setting high and low points for temperature or humidity, the fan will adjust its speed accordingly (refer to the fan theory section for detailed examples).

b. Manual On/Off Times: Users have the option to manually set desired on and off times for the fan operation.

c. Cycle Settings: Users can define specific cycle times for the fan to turn on and off at regular intervals.

 

Fan Setting Theories:

  1. Temperature-Triggered Fan Speed: Users can establish a high temperature trigger and a transition temperature. When the ambient temperature reaches the high trigger, the fan starts to speed up. A transition temperature is set, and the fan accelerates by 10% for each transition step. This process continues until the fan reaches 100% speed. A similar mechanism applies in reverse for low temperature settings. It's crucial for users to set a neutral fan speed within the normal operating range.

    Example: If a user sets a high trigger at 80 degrees with a 3-degree transition, the fan speeds up by 10% at 80 degrees, 10% more at 83 degrees, and so forth, until reaching 100% speed.

  2. Temperature and Humidity Spread Adjustment: Users can define high and low points for both temperature and humidity. The fan automatically adjusts its speed levels to match the temperature and humidity spread within the specified range. The larger the spread, the more significant each speed adjustment becomes.

    Example: If a user sets a low temperature of 60 degrees and a high point of 80 degrees (20-degree spread), the fan adjusts by 10% for every 2 degrees of temperature change. This process continues until 100% speed is reached at the high set point. Adjusting the high temperature setpoint to 90 degrees changes the speed adjustment to every 3 degrees of temperature change.