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![EWC Controls NCM-300 NCM-300 3 Zone Non Expand Cntr Panel | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ncm300_7f67f2e7-6ed3-4ae8-8159-9f5a2e94accd_medium.gif?v=1720000546)
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![EWC Controls 14 URD 14 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_4705c0b4-7b37-4834-8abc-5a17431cf284_medium.gif?v=1720000408)
![EWC Controls MRK MRK Motor Replacement Kit ND/URD/RDN | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/mrk_medium.gif?v=1720000560)
![EWC Controls 12 URD 12 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_d53a6916-66c7-4c84-aaa6-8207fa0c7418_medium.gif?v=1720000414)
![EWC Controls 10 URD 10 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_fb953534-ba59-409c-ad85-83421f3ca3ab_medium.gif?v=1720094298)
![EWC Controls 20X12 ND Rectangular Damper | 20X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_2f55c947-95b3-462f-81a1-80b1359dcea7_medium.png?v=1720000478)
![EWC Controls SAS SAS Supply Air Sensor | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/sas_21dc7909-63d3-47a4-a836-7241c31deed2_medium.png?v=1719987505)
![EWC Controls UZC-4 UZC-4 Zone/Cntrl Pnl 2Stclg/3Stg Ht | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/uzc4_44436448-8aea-49dd-91b7-299baf30defc_medium.png?v=1720000567)
![EWC Controls 14 CLBD 14 CLBD CONSTANT LOAD BY-PASS DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/clbd_3a3490db-3d26-461f-815c-a2daa64a154a_medium.png?v=1720000463)
![EWC Controls 16X16 ND-RSD NC Rectangular Damper | 16X16 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_f2a54041-fc24-4c58-b50e-e694d29e90b2_medium.png?v=1720000442)
![EWC Controls 16 CLBD 16 CLBD CONSTANT LOAD BY-PASS DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/clbd_b61563ba-a200-4cf1-a3de-1bbb4ff41a9b_medium.png?v=1720000428)
![EWC Controls 4 URD 4 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_07e7adb7-d68b-443d-b241-d537040f9794_medium.gif?v=1720094307)
![EWC Controls 20X10 ND-HD 20X10 ND-HD HAND DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_hd_7f0be4e2-d1a9-4340-8f2e-1b98919ae7c5_medium.png?v=1720000473)
![EWC Controls 16 URD 16 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_99e716bf-5282-46e5-8930-b97cf485dae3_medium.gif?v=1720000422)
![EWC Controls UT-3000 Ultra Talk Communicating Zone Panel | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/ultratalk_7e8b9fc6-6ebe-4169-af7e-d1b8812c2d4c_medium.png?v=1720000571)
![EWC Controls 20X8 PRD 20X8 Rectangular Manual Bypass Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/prd_5892f856-e9aa-42e8-9448-8e06abaaedb5_medium.gif?v=1720000477)
![EWC Controls 14X8 ND Rectangular Damper | 14X8 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_17421572-e781-4aed-9db5-c33174937370_medium.png?v=1720094298)
![EWC Controls 12 CLBD 12 CLBD CONSTANT LOAD BY-PASS DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/clbd_5f3aca49-6e08-4a03-837e-f66fe6ffab93_medium.png?v=1720000398)
![EWC Controls 12X12 ND Rectangular Damper | 12X12 ND MOTORIZED DAMPER | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd_9861f881-a65b-4b4b-919c-31fd2fda94ef_medium.png?v=1720000403)
![EWC Controls 20 URD 20 Inch Round Motorized Damper | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/urd-sm_2fa332fc-793c-4f1f-907a-1440b217fd13_medium.gif?v=1720000463)
![EWC Controls 12X12 ND-RSD NC Rectangular Damper | 12X12 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY CLOSED | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/nd-rsd_25d7e06f-a750-4b82-b13a-619acb30b2b4_medium.png?v=1720000409)
Why Buy from EWC?
EWC Controls has been manufacturing power transformers for military and commercial use since 1961. Today, the company expanded into the HVAC industry by utilizing their pre-existing manufacturing equipment. Their popular HVAC products include thermostats and zoning equipment.
What are some benefits of EWC Ultra-Zone Products?
EWC Controls manufactures a line of zoning products, called Ultra-Zone, that allows for more control over the temperatures in different areas of a building. Each zone has their own thermostat, so working and sleeping areas can be set at different temperatures than storage areas. These zones provide more comfort to the buildings’ occupants and reduce the utility bills.
How Does Ultra-Zone Work?
The Ultra-Zone system from EWC uses motorized dampers connected to thermostats. These motorized dampers can be opened or closed depending on the set temperatures. The airflow is controlled by the dampers through the ductwork and accommodate as many as 30 different zones.
What Types of EWC Dampers are Available?
At Blackhawk, we carry a variety of dampers from EWC to meet your HVAC zoning needs. Some popular ones are the bypass dampers, the rectangular dampers, and the round dampers.
The EWC bypass dampers release static pressure on the HVAC ducts. They work by having a motorized system that is controlled by pressure sensors. These pressure sensors can switch on or off, so the bypass damper can modulate the conditions set by the user.
The EWC rectangular dampers are made from heavy-duty extruded aluminum. Its motors can be adjusted for minimum or maximum capabilities to allow flow into a specific zone. It is also easy to wire and install.
The EWC round dampers are reliable, long-lasting, and maintenance-free. They are also made of galvanized steel and easy to install and set up. It includes nylon bearings and patented ThermoTuff™ technology which allows for smooth and quiet operations.
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