Delta Group is the world’s largest manufacturer of brushless DC fans and a leading provider of switching power supplies – a $8,471 billion global company with 38 manufacturing facilities, 70 R & D labs, 169 Sales Offices worldwide and U.S. and Americas headquarters in Fremont, CA.
Our company mission is “To provide innovative, clean and energy-efficient solutions for a better tomorrow” supported by a product portfolio that features a range of energy efficiency solutions including ventilation fans, small wind energy systems, solar panels, LED lighting, EV chargers, Industrial Automation products and Display Solution products. Delta’s operations are ISO-9001, ISO-14001, ISO-14064, OHSAS-18001 and TS-16949 certified. Delta brushless DC motor fans are used in applications where precision is paramount. This includes consumer electronics products such as laptops, desktops, tablets and gaming systems from leading manufacturers.
Please visit our global website www.deltaww.com
for a more comprehensive look at Delta operations, products and capabilities.
Delta brushless DC motor exhaust fans use are engineered to run 70% longer and consume 74% less power than AC motor exhaust fans, which reduces replacement costs and saves on utility bills. No mechanical brushing means more quiet operation and less wear on motor components. Delta Breez fans have been tested to run continuously for a minimum 70,000 hours.
No special wiring is needed; there is a transformer built into the fan that automatically switches the power supply from AC to DC.
Delta’s DC Breez ventilation fans are installed just like any AC motor fans.
In the first 10 seconds the fan is powered on, the motor will softly and quickly ramp up to full speed. This is unlike an AC Motor, which simply jump-starts the fan. This quiet ‘soft start’ process helps reduce the wear on motor bearings to prolong fan life.
This unique function allows all Delta Breez ventilation fans to automatically power off when the impeller is locked abnormally. For example: when a buildup of dirt and dust accumulates in the fan. The fan will attempt to restart itself in 5-10 seconds. If the impeller is still blocked, the fan will remain off. This helps avoid the issue of over-heating or motor burnout, and helps to prevent potential fire risks.
The light indicates to the user that the quiet fan is operating. If the fan has different functions available i.e. humidity sensing, low speed, motion sensing, the light will change color indicating what mode the fan is in. The light will blink if the impeller gets obstructed, telling the user that the fan is not operating properly.
CFM and Sones are how bath fans are generally compared CFM (Cubic Feet per Minute) is speed of ‘airflow’ – the amount of air extracted per minute when the fan is running. The amount of CFM needed is generally related to the size of the area ventilated. Please see the sizing guidelines.
Sone level is how loud the fan is to the human ear. Doubling the sone value means doubling the noise. The average 80 CFM bath fan runs at 0.8~2.5 Sones. Delta Breez 80 CFM fans run as low as < 0.3 Sones. At less than 0.3 Sones, the fan is virtually silent. This is the lowest noise rating of any exhaust fan available in the market. For reference, 1.0 Sone is about as loud as a new computer or refrigerator.
The following are Home Ventilating Institute (HVI) guidelines for ventilating both large and smaller bathrooms using intermittent or continuous ventilation.
For bathrooms up to 100 square feet in area, HVI recommends that an exhaust fan provide 1 CFM per square foot (approximately eight air changes per hour) to properly ventilate the bathroom.
• Bathroom is 8’ x 5’ (with 8’ ceilings) Multiply 8 x 5 = 40 ft.
• Bathroom area is 40 ft.
• At 1 CFM per square foot the minimum
recommendation is a fan rated at 40 CFM
For bathrooms above 100 square feet in area, HVI recommends a ventilation rate based on the number and type of xtures present, according to the following table:
Toilet 50 CFM
Shower 50 CFM
Bath 50 CFM
Tub 50 CFM
Jetted Tub 100 CFM
The bathroom is 20’ x 12’. There is a tub (without jets), a shower enclosure and an enclosed toilet.
Each fixture requires 50 CFM:
Tub 50 CFM
Shower 50 CFM
Toilet 50 CFM
Total 150 CFM
The fan runs at full speed until the user-adjustable humidity set-point is achieved, then automatically switches to the user set low speed for continuous run or off. The amber or blue color of LED indicator light underneath the grille indicates humidity sensing mode or continuous low speed mode. Please consult the Installation & Operating Instruction manual for a particular fan model for more speci c information.
When motion is detected, fan comes on at full speed. When user leaves the room, the fan will remain running at full speed until user-preset delay time has passed. Then the fan will automatically drop down to the pre-set low speed for continuous run or off. The green or amber color of LED indicator light underneath the grille indicates continuous low speed or full speed mode. Please consult the Installation and Operating Instruction manual for a particular fan model for more specific information.
No. For proper performance, it is recommended that Delta Breez fan motors be used only with Delta Breez fan housing.
The main light bulb is a 26W CFL with GU24 base (2-pin style). The night-light is a 4W incandescent light bulb with E12 screw base. Both lights are included in the box with the fan. Replacement light bulbs can also be purchased at most major home improvement retailers or through your local contractor or supplier.
SIG110LED has a 13W (equivalent to 60W incandescent), 2700K LED module with 2W LED night light. It is included in the box.
The main light bulb in the entire BreezGreenBuilder
fan and light unit is a 26W CFL with GU24 base (pin style). The light bulb is included in the box with the fan. Replacement light bulbs can also be purchased at most major home improvement retailers or through your local contractor or supplier. The GBR80LED has an 11W (equivalent to 60W incandescent), 2700K LED module and is included in the box.
The main light bulb is a 26W CFL with GU24 base (2-pin style). The bulb is included in the box with the fan.
Many Delta Breez models have built-in adjustable delay timers, so no external timer is needed. External timers can be used in conjunction with single-speed models only. Because Breez fans run on much lower wattage than other market ventilation fans, please contact Delta Breez customer service for a list of single-speed models and consult with a licensed electrician for compatibility.
No. Delta does not manufacture switches or timers but these components are readily available in most major home improvement retailers or through your local contractor or supplier.
Yes. All Delta Breez fans are UL approved. Here is UL’s testing protocol:
For Fan/lights, UL requires 8.5 inches of insulation on all sides (including top) of the product. Insulation shall be of the loose ll type and should have a thermal resistance per inch between 3.75-3.85 R (declared by the manufacturer) when conditioned to a density of 32.04 - 40.05 kg/m3. This scenario is equivalent to an approximate R value of R32. R40 is the max for Canadian installations.
For a fan only, there is no insulation limitation for fan without lighting except in Canada where the max value is R40.
Delta Electronics designs our own LED modules. This is a customized LED module that cannot be replaced with an off-the-shelf, screw-in LED bulb from another manufacturer.
The LED modules are designed to last a minimum of 30,000 hours, so the necessity for future replacement is unlikely. Delta Electronics has a 3-year limited warranty on every Delta designed LED module. If the LED module needs replacement outside of the warranty period, a replacement LED module can be purchased through our distributor partners or from Delta Customer Sales Support.
Green and amber LED indicator lights will show continuous low speed and full speed modes. The fan will run continuously at a user-preset lower level of CFM. When motion is detected, fan will automatically change to full speed. When user leaves the room, the fan will remain running at full speed until user-preset delay time has passed; delay timer has adjustable preset positions of 0, 0.5, 5, 15, 30, 45 and 60 minutes. Fan will automatically drop down to low speed after the pre-set time has elapse.
Blue and amber LED indicator lights to show humidity control and full speed modes. The fan will operate in full speed mode or humidity control mode by manual on and off switch. The adjustable humidity set points are from 50% to 90%. When in humidity control mode, and the humidity is above the user-adjustable set-point, fan will run at full speed. When the humidity is below the set-point, the fan runs continuously at a user-preset lower level of CFM.
No. The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommends exhausting only to the exterior of the home.
All Delta BreezSlim models; BreezGreenBuilder fan only and fan with humidity sensor models; BreezIntegrity fan only and fan with humidity sensor models are UL listed for both ceiling and wall-mount installation.
No. Installation of any Delta fan in a slanted ceiling is not recommended.
Yes. All Delta Breez Ventilation Fans except BreezRadiance due to the heating element are UL listed for use over the bathtub or shower when installed in a GFCI protected branch circuit.
Yes. Most Delta Breez fans are ENERGY STAR qualified. The only exception is BreezRadiance series with Heater element for warmth and comfort.
Yes. All Delta Breez fans are 62.2 compliant for intermittent running. Most of the Delta Breez fan models are compliant for continuous running. Please see www.deltabreez.com/ashrae.php, from Learning Center for a complete listing.
Yes. All Delta Breez fans are UL listed and are HVI certified.
Yes. All Delta Breez fans meet current Title 24 requirements.
All Delta Breez Ventilation Fans have a 3-Year limited warranty.