Contact

➤ LOCATION

Offices in California, Montana, and Nevada. Global distribution.

SALES and Local pickup

(714) 279-9010

james@greenfan.co

357 West Grove Avenue, Orange CA 92865

☎ CONTACT

support@greenfan.co
(877) 777-6756

Smart fan controller (SFC)

The SWHC059-01 Smart Fan Controller (SFC) measure package was approved on August 1, 2023, by the California Public Utilities Commission. caetrm.com/measure/SWHC059/01. The Smart Fan Controller (SFC) provides variable fan-off delays after cooling and heating cycles to save 10 to 20% based on Intertek tests. The SFC works with smart thermostats by monitoring cooling, heating, and fan signals to provide fan-off delays in parallel with smart thermostat delays. The SFC does not provide fan-off delays after fan-only durations which can save 183 to 730 kWh/yr compared to other fan controllers. The SFC provides evaporative cooling, prevents biofilm, and maintains proper airflow by removing 0.5 to 0.8 lbs of water per AC cycle. According to Montana State University Center for Biofilm Engineering, biofilms are formed by viruses, bacteria, mold, fungi, mites, and dust attaching to water on evaporator coils which can detach from the coil surface and flow into conditioned spaces impacting indoor air quality (biofilm.montana.edu). Research studies indicate 9 to 31% of users select continuous or hourly fan-on controls increasing electricity use by 1054 to 3520 kWh/yr (Wisc. DOA 2003, 2004, PSCW 2009). Adding fan-off delays to hourly fan-on durations increases energy use by 17 to 50% or 183 to 730 kWh/yr (183 kWh/yr based on adding 2.5 minutes to 5-minute fan-on durations with 0.5 kW fan and 730 kWh/yr based on adding 5 minutes to each of two 10-minute circulation fan-on durations per hour). US Patents 9995493, 9797405, 10281938, 10533768, 10712036, 11187425, 9410713, 10047969,10119719, 10281938, 11460208.

Occupancy fan controller (OFC)

The Occupancy Fan Controller (OFC) saves 20% on fan, cooling, and heating energy by switching fans from “on” to “auto” when buildings are unoccupied and back to “on” or default fan-control when occupied based on PIR, ultrasonic, or radar-based occupancy sensors.  OFC provides variable fan-off delays after cooling and heating cycles to prevent biofilms and closes economizer dampers when unoccupied to save cooling and heating energy. US Patents 9995493, 11029061, 11029057, 11175060. CALTF SWHC062-01 OFC measure package is in progress.

Efficient e-wire™ adapter

The patented e-wire™ adapter charges smart thermostat batteries and enables smart thermostat control for 60 million homes without a common-wire to the thermostat. The e-wire™ is made in USA, easier to install, lasts 10 times longer, and uses less power than other common-wire adapters. US patent 10859284.

Efficient +wire® Adapter

The patented +wire® adapter charges smart thermostat batteries and enables smart thermostat control for 9 million homes with 2-wire millivolt or 24VAC HVAC systems without a common-wire to the thermostat. The +wire® is made in USA, easier to install, lasts 10 times longer, and uses less power than other common-wire adapters. US patent 10921014.

laboratory testing

GREENFAN® has extensive laboratory experience testing, designing, and improving products and programs to deliverer certified laboratory savings.

Bipolar Ionizer

The patented greenfan® bipolar ionizer deactivates aerosolized SARS-CoV-2 virus that causes COVID-19 based on laboratory tests conducted by Innovative Bioanalysis in a 1,280 ft3 chamber per BSL-3 standards. The bipolar ionizer is Intertek third-party lab-tested Verified Zero Ozone to meet UL 2998, certified to CSA C22.2 #187, conforms to UL 867, and CARB certified (EO number G-22-124). The 8-hour Time Weighted Average (TWA) Ozone for the product is 0.0 parts per million by volume (ppmv) when tested in a 30-meter cubed (m3) chamber. The product electrically connects to fan G, heat W, and common terminals and is installed on the fan inlet of a central HVAC system to deactivate or remove airborne pathogens. The product is Intertek-certified to be installed in an air purifier or a fan. The product has an automatically resettable fuse and is unaffected by magnetic fields, provides consistent ion concentrations over 20 to 30VAC, and works with 120 to 240VAC with accessory transformer Model 1601-01. The product is made in the USA and is covered by a 5-year warranty when installed, operated, and maintained per manufacturer’s instructions. Please refer to safety instructions in manual for more information.  US Patent 11173226 and pending patents.

Smart EconOMIZER®

The smart economizer® improves cooling and heating efficiency by reducing excess outdoor airflow and correcting thermostat and economizer time and temperature delays. Average annual savings are 9% for cooling and 14% for heating based on laboratory and field tests and building energy simulations. Reducing excess outdoor airflow includes: 1) sealing the economizer perimeter gap, and 2) automatic damper position calibration for minimum outdoor airflow. Correcting time and temperature delays includes: 3) thermostat Cooling Delay Correction (CDC) to detect when the economizer cannot satisfy the call for cooling to supersede thermostat second-stage time and/or temperature dead band delays to fully open dampers and simultaneously energize AC compressor(s), 4) economizer CDC detects and overrides economizer second-stage delays and energizes first-plus-second-stage AC compressors when thermostat energizes second-stage cooling signal, and 5) High-limit Shut-off Temperature (HST) correction enables economizer cooling otherwise delayed by HST dead band unless OAT is less than or equal to HST minus 2F or 1.11C (or OAT ≤ HST minus 1F or 0.56C). US Patents 11029061, 10001289, 11029057, 110223335.

product development

GREENFAN® is constantly designing, testing, and improving products to further expand energy savings for clients.

energy saving program design and implementation

GREENFAN® has more than 30 years of experience designing, implementing, evaluating, and improving energy savings programs.