TF140-DC Tranquil Bathroom Fan

Description

With its high efficiency DC motor and multi-speed capability, the TF140-DC Tranquil Bathroom Fan offers whisper-quiet exhaust that is under 1 sone. Toggle-switch positioning determines the maximum desired airflow rate, ranging from 90 to 140 cfm. The low-speed airflow rate is adjustable from 40 cfm up to the maximum desired airflow.

The versatile TF140-DC fan can be installed as a traditional bathroom fan. Alternatively, it can be configured to operate continuously at a low airflow rate to improve indoor air quality (IAQ), and to boost the exhaust to maximum airflow with a flip of a switch.

Features and Benefits of TF140-DC Tranquil Bathroom Fan

• Efficient DC motor
• Multi-speed fan
• Whisper-quiet, under 1 sone
• Continuous operation with boost function
• Toggle-switch positioning for maximum desired airflow
• Airflow ranging from 90 to 140 cfm
• Superior ventilation & efficient performance
• Clean, simple grille design
• Galvanized steel housing with mounting frame
• Easy installation to joist
• Built-in backdraft damper
• 120V, 60 Hz, single phase operation
• Automatic reset thermal overload protection
• Fits 6” duct

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Fan Dimensions & Performance Curves

• Select the Charts / Diagrams tab below

Additional information on Ventilation & Bathroom Fans:

How much airflow is required for bathroom ventilation?

HVI recommends ventilation rates based on 8 air changes per hour. For most bathrooms this works out to 1 cfm per square foot of area, with a minimum of 50 cfm.

• A bathroom less than 100 square feet:
  • Calculate 1 cfm per square foot of floor area. A minimum of 50 cfm is the required ventilation rate.
• A bathroom larger than 100 square feet:
  • To calculate the proper ventilation rate, add the cfm requirement for each fixture; toilet 50 cfm, shower 50 cfm, bathtub 50 cfm, jetted tub 100 cfm. Note: For proper sizing, the static pressure (SP) needs to be calculated.

What is HVI?

HVI, also known as the Home Ventilating Institute, is an independent non-profit organization that certifies fan performance characteristics and provides HVAC guidelines for consumers. Learn more about HVI at HVI.org.

When it comes to choosing the right duct, people often ask, “What is the best duct for bathroom ventilation?” While there isn’t necessarily one absolute right choice, many times the best option is the flexible insulated duct.  Learn more in our blog posting: what-is-the-best-duct-for-bathroom-ventilation