Zone control vent register: free download. On-line document store on 5y1.org

[DOCX File]eHVAC: Wireless Modular Multi-Zone HVAC Controller
https://info.5y1.org/zone-control-vent-register_1_138b5c.html
Each bit would control a zone with the MCU sending the 8-bit string instructing which zones are calling for air and which ones are not. The design uses the 74HC595N, an 8-bit serial-in parallel-out shift register, to control 8 triacs. The 74HC595N uses a supply voltage between 0.5 - 7 volts which is exactly what we want in terms of low power.
floor register vents

[DOCX File]CHAPTER 1. DESIGN QUALIFICATION AND CERTIFICATION - …
https://info.5y1.org/zone-control-vent-register_1_de16df.html
Utility Quality Control Requirements . ... a minimum of one supply register and a return grill shall be used in the crawl space. A minimum flow of 50 cfm shall be provided by either the supply register. ... At least 1 ft2 of netfree vent area shall be provided for every 300 ft2 of ceiling area with 50to-60 percent of the vent area located near ...
wall register vents

[DOC File]DIVISION 13
https://info.5y1.org/zone-control-vent-register_1_604223.html
Vent size shall be determined by the tank configuration, the primary tank capacity, and the product stored. 2. Emergency venting shall comply with provisions of NFPA 30A (2-4.5. f), NFPA 30 (2-3.6), or UFC (7902.2.6). 3. Accepted manufacturers and part numbers: [List] C. Provide one (1) emergency vent for each secondary containment tank interstice.
thermostat controlled vent registers

[DOC File]Reg2Col.DOT .gov
https://info.5y1.org/zone-control-vent-register_1_e55c06.html
A facility which is designed to treat waste by heating or burning, distillation, or any other reaction of process which involves a need to vent or exhaust any material to the atmosphere under normal operating conditions and which could, with a reasonable degree of probability, if misoperated or through malfunction or any loss of control ...
ceiling register vents

[DOCX File]ARCAT | Free Building Product CAD Details, BIM, Specs and …
https://info.5y1.org/zone-control-vent-register_1_d1ff6a.html
Self-contained through-the-wall units providing individual room or zone control for cooling and heating. GE Appliances Zoneline models. Packaged Terminal Air Conditioner: AZ45 series. Cooling Capacity: 6,800 to 14,900 BTUH (1992.9 to 4366.7 W). Heating Capacity: 6,600 to 16,300 BTUH (1934.3 to 4777.1 W). Packaged Terminal Heat Pumps: AZ65 series.
register vent filters

[DOCX File]eHVAC: Wireless Modular Multi-Zone HVAC Controller
https://info.5y1.org/zone-control-vent-register_1_511681.html
3.2.1.5 Vent Control. Vent control in a HVAC system is essential to implement the multi-zoned feature. Air flowing through the ducts are controlled by dampers which are “doors” to guide the heated/cooled air to the requesting zones. The dampers, in addition to the …
floor register vents

Zone control vent register