Product Description
Panasonic FV-WCCS1-W WhisperControl™ is a smart wall-mounted humidity and condensation sensor that automatically activates your fan when high moisture levels are detected. With dual countdown timers, adjustable sensitivity settings, and a Minutes Per Hour (MPH) fan timer, this commercial-grade controller helps maintain indoor air quality while meeting key ventilation standards.
Brand: Panasonic
Model: FV-WCCS1-W
Control Type: Humidity & Temperature Sensor with Countdown Timers
Voltage: 120V AC
Max Load: 8 Amps
Dry Contact Switching: 24V AC Input/Output
Installation: Indoor use only – Includes matching wall plate
Free shipping on orders over $250
Product Benefits
- Automatically activates exhaust fan when condensation is detected
- Countdown timer options for both manual and automatic control
- Meets ASHRAE 62.2, LEED, ENERGY STAR® 3.0, and CALGreen requirements
- Improves comfort and prevents moisture-related damage in bathrooms and laundry areas
Key Features
- Humidity + Temperature Sensor: Anticipates dew point to proactively control fan operation
- Adjustable MPH Timer: Runs the fan 0–60 minutes per hour for ASHRAE 62.2 compliance
- Dual Countdown Timers: 30-minute auto-off (sensor triggered), 20-minute manual override
- Moisture Sensitivity Selector: High / Average / Low settings to suit different climates
- LED Indicator: Blue light shows when fan is on
- Commercial Grade: 8 Amp load capacity with 2-year limited warranty
Specifications
Technical Specs
| Voltage | 120V AC |
| Amperage | 8 Amps |
| Dry Contact Switching | 24V AC Input/Output |
| Wiring Termination | 6" Copper Wire Leads |
| Grounding | Required |
Compliance
| Certifications | UL/CSA Listed |
| Standards Met | ASHRAE 62.2, LEED, ENERGY STAR® 3.0, CALGreen |
| Warranty | 2-Year Limited |
Application Examples
- Residential bathrooms and powder rooms
- Multi-family housing requiring ASHRAE compliance
- Laundry rooms or high-humidity areas with poor ventilation
- Pairing with Panasonic WhisperCeilingDC, WhisperValueDC, or WhisperFitDC fans
Installation Tips
- Use only with 120V AC 60Hz power supply
- Mount in standard single-gang wall enclosure
- Keep away from sources of cold drafts to prevent false triggering
- Adjust moisture sensitivity and timer settings via hidden dials under cover
- Consult a qualified electrician for code-compliant installation
Frequently Asked Questions
What does the FV-WCCS1-W control?
This model controls exhaust fans only, activating them based on humidity/temperature sensing or manual use.
How is the fan run time adjusted?
You can use the Moisture Sensitivity Selector and the Minutes Per Hour (MPH) fan timer to fine-tune fan runtime.
What happens when the fan is manually turned on?
A 20-minute countdown timer is activated. It turns the fan off automatically after that time unless overridden.
Is this switch compatible with any fan?
It works with most fans but is optimized for Panasonic Whisper-series fans. It may also extend their warranty.
Does this require a neutral wire?
Yes. Correct wiring includes connection to Hot, Neutral, and Ground wires.
Can I use this in a shower zone?
No. This device is rated for indoor use and should not be installed where it is directly exposed to water.
How do I comply with ASHRAE 62.2?
Use the MPH timer to ensure required ventilation minutes per hour are met, based on building codes.
Is this a programmable timer?
Yes. The MPH dial can be set from 0–60 minutes per hour, and there are also moisture-triggered and manual countdown timers built in.
