Product Description
Low-profile retrofit DC ventilation for fast fan replacement
The Panasonic FV-0511VF1 WhisperFit DC is built for remodels: its low-profile housing fits ceilings with just 5-5/8" of depth and 2 x 6 construction, so you can replace an existing fan from below without opening the ceiling. The DC/ECM motor with SmartFlow holds the rated airflow across 50-80-110 CFM via Pick-A-Flow, and the 4" adapter with backdraft damper (plus 3" reducer) lets you reuse existing duct. Quiet, ENERGY STAR-certified operation makes it a premium choice for bathroom renovations and hotel projects.
Top Features
- Low-Profile Retrofit Design: Fits ceilings with at least 5-5/8" depth and 2 x 6 construction - ideal for replacing an existing fan from below.
- SmartFlow DC/ECM Motor: Automatically adjusts to hold the rated CFM even when duct runs add resistance.
- Pick-A-Flow Selector: Choose 50-80-110 CFM on a single fan with the flip of a switch.
- Flex-Z Fast + Alignment Guides: Single-hinge bracket, pre-installed alignment guides, and a temporary clip make ceiling install fast and secure.
- Reuses Existing Duct: 4" adapter with backdraft damper plus a 3" reducer lets you keep existing ductwork; ENERGY STAR certified.
| Specification | Value |
|---|---|
| Model | FV-0511VF1 |
| Series | WhisperFit DC |
| Type | Low-profile retrofit ceiling ventilation fan |
| Airflow (Pick-A-Flow) | 50-80-110 CFM |
| Sound Level | <0.3 / <0.3 / 0.8 sones |
| Motor | DC / ECM with SmartFlow technology |
| Duct Size | 3" or 4" (4" adapter with backdraft damper, 3" reducer included) |
| Construction Fit | 2 x 6 (min. 5-5/8" ceiling depth) |
| Mounting | Ceiling |
| Voltage | 120V / 60Hz |
| Amperage | 0.29A |
| Lighting | None (fan only) |
| Listings | UL listed for tub/shower enclosure when GFCI protected; ENERGY STAR |
| Compatible Damper | Ceiling Radiation Damper PC-RD05C5 |
| Country of Origin | Mexico |
| UPC | 885170375468 |
| Warranty | 6-Year ECM motor / 3-Year parts limited warranty |
WhisperFit DC is ENERGY STAR certified with TrueFlow-rated airflow verified at higher static pressure for a realistic installed value. It is UL listed for tub/shower enclosures on a GFCI-protected circuit and compatible with the PC-RD05C5 ceiling radiation damper. Backed by a 6-Year ECM motor / 3-Year parts limited warranty. Install to local electrical code using a licensed electrician.













