Maximize cooling efficiency and reduce energy bills by up to 90% with expert-approved whole house fan placement strategies for optimal airflow.
Each fan must be approximately centered between four (4) adjacent sprinklers. The vertical distance from the fan to the sprinkler deflector must be a minimum of 3 ft (914 mm). All fans must be
With a parallel unit, the central system fan must deliver air to the diffuser, passing through it The fan in the parallel unit is typically off when in cooling demand Heat generated by the motor is transmitted
The fan performance figures published by fan suppliers have normally been obtained from tests carried out in accordance with the requirements of a recognised test standard.
Most designers are well-trained in determining the resistance that occurs in the system''s ducts such as filters, dampers, and elbows that are located some distance from the fan, but obstructions near the
Here''s our list of the code standards for residential ceiling fan installation: • Fan must be grounded - The National Electrical Code does not
The energy data from an ASHRAE/AHRI research project shows that (in most situations) series units with EC motors will use less energy than a parallel box with either type of motor
Below is an example of control sequence for the fan powered VAV box for an area that requires a constant exhaust. Consider a restroom area that requires a constant exhaust of 1 to 1.8 cfm per
Installing multiple ceiling fans in the same room can be a great way to improve air circulation and cooling efficiency. However, it''s crucial to consider
Basic Concepts A traditional underfloor air distribution system uses the floor space between the structural floor and the access floor as a supply air plenum. each with distinctive characteristics: 1.)
When the fan is located above or below the discharge or intake of HVAC equipment, the minimum distance between the fan and the HVAC equipment must be at least one times the fan''s diameter.
In this article we will explain briefly the concepts of isolation and switching and then discuss these functions in relation to extract fans and in an upcoming article we will cover the ventilation
Fans should not be located adjacent to an area that restricts the free flow of cooling air.The use of a plenum in front of the fan is a good practice since it improves fan performance.The air velocity must
When air distribution is designed with a minimum ADPI of 80% the probability of vertical temperature stratification or horizontal temperature non-uniformity is low and conformance with
Blow-through unit is when one of the coil sections is located downstream of the supply fan. Draw-through unit is when one of the coil sections is located upstream of the supply fan. Draw-through
Residential: The recommended height for distribution board and consumer unit is between 1 metre to 1.8 metre from the floor. The suggested height is 1.3 metres
In flammable and explosive environments, explosion-proof distribution boxes should be selected and explosion-proof treatment should be carried out.
Learn how to install a distribution box safely and correctly. Covers wiring, placement, standards, and expert tips for a compliant setup.
Why choose National Ventilation National Ventilation is one of the leading manufacturers and suppliers of ventilation solutions. We have one of the biggest and most diverse range of ventilation products in
The designed air distribution system duct layout, using six diffusers, satisfies all requirements. Each section has a pressure loss of 0.001 in.wg/ft
Fan coils connect to a combination of chilled water pipes, hot water pipes, supply ducts and return ducts. Early in the
System effect is a common term used by the air movement industry to describe certain inlet and outlet conditions that adversely affect fan performance.
This Strategy Guideline on air distribution basics and duct design for an energy efficient house builds upon the information developed in those two previous guides. Results of the load calculations and
Technical Committee 5.1 is concerned with the selection, application and testing-for-rating of fans, including recommended installation practices and field test procedures.
Best Practices for a Successful Mechanical System Design Understanding how much space a fan coil unit needs is imperative for
Clearance distances for outdoor HVAC compressor/condenser units: This article describes the recommended minimum (and maximum) distances to separate HVAC components from other
Numerous air distribution systems are available ranging from uni-zone systems (the indoor space constitutes a unique conditioned zone), to multi-zone systems (separate specifically conditioned
The air moving industry uses a common term to describe certain inlet and outlet conditions that adversely affect fan performance.
Contact us for competitive quotes on any of our fiber optic and telecom products
Get a Quote