He developed the circuit setter, a helpful device for balancing hot water systems. We serve the hvac industry with worldclass fluid handling products. This safety alert symbol will be used in this manual to draw attention. If directional flow tees are not available, an adjustable screw operated flow control or circuit setter can be placed between the two standard tees in a one pipe system. Using the mechanical engineers design drawings, the balancing contractor carefully adjusts each balancing valve throughout the hvac system to ensure the.
The circuit sentry flosetter ii valves are easy to install and maintain set flow rates even when installed next to a pipe bend or fitting. Sioux chief 834 series finish line adjustable ongrade cleanout shall be used where necessary in drainage systems. This will allow the unit to have onoff capabilities and as a result the pumps will be able to modulate flow to approximately 25%. Contractor shall develop prefunctional checklists with the startup plans. This method is preferred by most designers for constant speed systems. The system is properly balanced if constructed with a reverse return piping layout. In a circuit setter, the pressure drop is taken across the valve as it opens and closes.
Gerands 50 years of experience delivers the results our customers demand. Flow is determined based upon the pressure drop at a given valve position. The flow meter permits fast and easy circuit balancing without added differential pressure gauges and reference charts. Venturi valves provide balance, ease of commissioning, and shutoff in a wide range of hvac systems. Provides equal fl ow throughout all circuits to conserve water. Electronic copies of these checklists are available upon request.
A512b save time, save energy and save water with the leadfree circuit setter plus and circuit setter plus rf. Ground fault circuit interrupter with selftest gfci residential main circuit breakers. Carlson also helped to develop and promote the pumping concept known as primarysecondary pumping. Circuit setter plus model mc xylem applied water systems. An ecm recommendation was not included because although there are. Plus rf calibrated balance valve is a precision machined ball type triple purpose balancing. Proportional balancing strives to have all circuits with pressure drop equal to the. Setting of a valve for a particular pressure drop, e g corresponding to 2.
Our meters are fm approved and nist certified with a 5year warranty. Circuit setter rf for low flow applications provides cost savings advantages of preset proportional balance and assures optimumread more. Npt and sweat style circuit setter balance valves are equipped with 14 npt plugged drain port. Dynamic balancing valve is simple to select and easy to use. Calculate the ratio of the actual flow to the design flow for each unit in the branch. This core product line includes valves ideal for a variety of different applications in commercial and institutional markets. Gerand engineering provides the highest quality products for fire pump testing and hydronic balancing. Circuit setter balance valves are bidirectional valves and can be installed in most attitudes. Memory stop, and adjustable flow setter code 50 3way control valve, ball valve in bypass, and ball valves with memory stop code 53 3way control valve, ball valve in bypass, ball valve with memory stop, and adjustable flow setter vav products and fh, fn, fw, fl fan coils vav products available with 2way packages only.
Circuit setter plus calibrated balance valves xylem. Circuit setter cb provides cost savings advantages of preset proportional balance and assures optimum system flow balance at minimum operating. Accusetter manual balancing hydronic system balancing with calibrated venturis ashrae recommends that manual balancing valves be placed on the coils, risers, branches, and pump discharge so that the system can be proportionally balanced. Manual balance valves xylem applied water systems united. Acorn controls valves offer options for use with single fixtures, multiple fixtures or whole building water systems. The system is properly balanced if the installer doesnt receive a complaint about some rooms being too hot while others are too cool. Optimizes system effi ciency for potable water systems. At last the device type is highlighted left side on the bottom of desktop, e. He advocated trimming impellers to fine tune a commercial pump for its particular applicationdont waste energy and horsepower. Energy in buildings understanding the impacts on consumption. These values are plotted by the manufacturer, and then placed on a. Adjust the circuit setter by turning the red knob by hand on sizes 12 thru 1, or by placing a wrench on the wrench flats provided on. Thysetter 348 manual 01 2009 5 for both the operating modes the con.
Circuit setter balance valves are precision engineered valves. They are precisely calibrated for use as a presettable balance valve, variable orifice flow meter and positive shut off service valve. Circuit setter balance valve is shown under the degree of closure hairline in the red section of the calculator for the appropriate size circuit setter. Circuit setter cb provides cost savings advantages of preset proportional balance and assures optimum system flow balance at minimum operating horsepower.
Circuit sentry flosetter ii xylem applied water systems. Select the circuit setter with the lowest proportional flow rate. Designed, manufactured and tested to provide cost savings advantages of preset proportional balance. The stad balancing valve delivers accurate hydronic performance in an impressive range of applications. A message to the rhode island community from taco comfort solutions. The easy to read gallons per minute scale on the lockable handle ensures that the flow setting is simple and user friendly while the integral pt plugs allow verification of required differential pressure. Acorn engineering has been manufacturing valves for plumbing fixtures for over 40 years. For installation in a 4pipe system, unit shall be equipped with. Sample forms of similar rigor will be provided to the contractor by the ca upon request for other equipment e. Ready to select pumps as well as suction diffusers, triple duty valves, heat exchangers, airdirt separators, pic valves, and parts.
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