ZONING WITH
ELECTRIC ZONE VALVESZONING WITH
ELECTRIC ZONE VALVESEver since reliable electric zone valves were developed many years ago, they have been by far the most widely used device for zoning a system. They eliminate the need for a Flo-Chek valve and relays, and simplify the piping. Their compactness permits great flexibility of location in the system. This and the silent operation of the Taco valves having heat motor type operators permits installation in or near rooms where noiseless operation is desired, such as bedrooms. In most zoned systems, especially when there are more than two zones, valves have a definite cost advantage over using a circulator in each zone. A single circulator in the system can supply from two to many zone valves.
A Taco Electric Thermostat is used to sense the temperature in each zone and control operation of the zone valve for the zone. The valve may be located within the zoned space or at any convenient location in the pipe loop for the zone. In a series loop system, usually the valves are placed at the discharge side of the boiler. In a two-pipe system, the valves are placed at the radiation unit supply or return.
570 Series Zone Valve |
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PURPOSESave energy — cut fuel costs! Taco Zone valves, each with its own thermostat, permit accurate temperature control of individual rooms or groups of rooms in residences or commercial buildings which are heated or cooled hydronically. Put heat where you want it, when you want it. |
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FEATURESProven Performance — Over one million in use. Taco Zone Valves are the
industry’s top choice for consistent performance. Dependable-Quiet Operation
— Taco Zone Valves offer rugged dependability and absolutely silent operation.
Normally closed valve with manual override (power failure). |
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BUILT TO LASTLeak Proof. Beryllium copper metal bellows separate system water from the atmosphere for positive and leak proof operation. Patented Construction. Exclusive heat motor functions silently. Energy saver — heat motor is not constantly energized while the valve is open. Maintenance Free. Heavy bronze body with sweat connections. Globe valve construction with E.P. seat ensures tight shut-off for trouble free service. Easy-To-Install. Only 3 low voltage connections. Power head does not have to be removed to install. Factory Tested. Every Taco Zone Valve is operated before shipment. |
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570 Series Zone Valve Dimensions & Specifications |
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Dimensions |
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| Prod. No. | Conn. Size Ins. | Norma Range GPM | Pressure Drop Thru Valve (Ft. of pipe Equiv) | Pump Heat (Ft. of Water) | Max Work Press. | Oper. Temp. Range F. | Amp Rating | Volts-Freq. | A | B | C | D | Approx Ship Wgt. Lbs. |
| 570 | 1/2 | 0-4.5 | 10 | 65 | 125 | 40-240 | 0.9 | 24V-60Hz | 3-1/8 | 4-13/16 | 15/16 | 2 | 2-1/4 |
| 571 | 3/4 | 4.5-6 | 20 | 3-3/8 | 4-13/16 | 15/16 | 2 | 2-1/4 | |||||
| 572 | 1 | 6-10 | 60 | 3-5/8 | 4-13/16 | 15/16 | 2 | 2-1/4 | |||||
| 573 | 1-1/4 | 10-16 | 130 | 3-7/8 | 4-13/16 | 15/16 | 2 | 2-1/4 | |||||
High Head Zone Valves |
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PURPOSEDesigned for high head capacity applications. Save energy — cut fuel costs! Taco Zone Valves, each with its own thermostat, permit accurate temperature control of individual rooms or groups of rooms. Used primarily in high-rise residential and commercial buildings due to high pump head requirements. |
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FEATURES
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BUILT TO LAST
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High Head Zone Valve Dimensions & Specifications |
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| Dimensions | |||||||||||||
| Prod. No. | Size Conn's. | Normal Flow Range GPM | Press. Drop Thru- Valve Ft. of Pipe Equiv. | Pump Head Ft. of Water | Max. Work Press. PSI | Oper. Temp. Range F. | Amp. Rating | Volts Frequency | A | B | C | D | Appr. Ship Wgt. Lbs |
| 555 | 1/2 | 1-4.5 | 10 | 150 | 125 | 40-240 | 0.9 | 24V-60Hz | 3-1/16 | 5-3/8 | 1-9/16 | 2 | 2-1/8 |
| 556 | 3/4 | 4.5-6 | 20 | 3-3/8 | 5-3/8 | 1-9/16 | 2 | 2-1/8 | |||||
| 557 | 1 | 6-10 | 60 | 3-5/8 | 5-5/8 | 1-9/16 | 2 | 2-1/8 | |||||
560 Series Zone Valve |
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PURPOSESave energy — cut fuel costs! Taco Zone Valves, each with its own thermostat, permit accurate temperature control of individual rooms or groups of rooms in residences or commercial buildings which are heated or cooled hydronically. Put heat where you want it, when you want it, via a unique bypass construction. Designed for fan coil and other heating and cooling units. |
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FEATURES
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BUILT TO LAST
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| Dimensions | |||||||||||||
| Prod. No. | Size Conn's. | Normal Flow Range GPM | Press. Drop Thru- Valve Ft. of Pipe Equiv. | Pump Head Ft. of Water | Max. Work Press. PSI | Oper. Temp. Range F. | Amp. Rating | Volts Frequency | A | B | C | D | Appr. Ship Wgt. Lbs |
| 560 | 1/2 | 1-4.5 | 10 | 65 | 125 | 40-240 | 0.9 | 24V-60Hz | 3-1/16 | 5-11/16 | 1-13/16 | 2 | 2-1/4 |
| 561 | 3/4 | 4.5-6 | 20 | 3-3/8 | 5-7/8 | 2 | 2 | 2-1/4 | |||||
| 562 | 1 | 6-10 | 60 | 3-5/8 | 6 | 2-1/8 | 2 | 2-1/4 | |||||
Geothermal Zone Valve |
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| Bronze body and corrosion resistant internal parts
provide for long, trouble-free service. Created especially to eliminate noisy water hammer. The Taco GT Whisper Guard operates in a totally different way from fast-acting solenoids. How? Because it closes slowly and no water hammer occurs. The unique end-switch design permits control of the heat pump by the valve. This allows movement of cold water into the coil before the heat pump actually starts. Taco GT Whisper Guard is available with: C\v" thread (5101-G2), 1" sweat (557-G2), or C\v" sweat (556-G2). Offers long-term economy both in power consumption and maintenance. Taco Whisper Guard operates on a low 24V AC electrical current for minimum annual cost. It’s fast and easy to service, too. There’s no need to drain the system — just remove the power head. All it requires for removal is a slight twist. The gland assembly is replaceable. Simple to install — with a choice of threaded or sweat connections. Installation is made easy because power head does not have to be removed. Only 3 low voltage wiring connections have to be made. |
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| Dimensions | |||||||||||||
| Prod. No. | Size Conn's. | Normal Flow Range GPM | Press. Drop Thru- Valve Ft. of Pipe Equiv. | Pump Head Ft. of Water | Max. Work Press. PSI | Oper. Temp. Range F. | Amp. Rating | Volts Frequency | A | B | C | D | Appr. Ship Wgt. Lbs |
| 5101G | 3/4 T | 1-4.5 | 10 | 150 | 125 | 40-240 | 0.9 | 24V-60Hz | 3-1/16 | 5-3/8 | 1-9/16 | 2 | 2-1/8 |
| 556G | 3/4 SWT | 4.5-6 | 20 | 3-3/8 | 5-3/8 | 1-9/16 | 2 | 2-1/8 | |||||
| 557G | 1 SWT | 6-10 | 60 | 3-5/8 | 5-3/8 | 1-9/16 | 2 | 2-1/8 | |||||
568-16 Taco Thermostat
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Specifications |
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| Voltage | 24 Volt, Two Wire Circuit (40 VAC, 1.3 Amperes Max) | |
| Heat Anticipator | Adjustable (Factory Set At Normal) | |
| Temperature Range | 50-90 Deg. F., 10-30 Deg. C. | |
| Temp. Differential | 1.8 Deg. F., 1 Deg. C. | |
| Contacts | Close Circuit on Temperature decrease at Control Setting | |
| Size | 3" X 3-1/4" X 1-1/2" | |
567-1 Decorative Wall Plate & Mounting Screws4-3/4" X 4-3/4" wall plate for covering the defaced area on the was that is larger than the area covered by the 568-16 Thermostat. |
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569 Taco Transformer
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PURPOSEFor reducing line voltage to low voltage when used in conjunction with Taco Zone Valves. No. 569 — 40VA, 120V, 50/60 hertz primary; 25V secondary; terminal screws for secondary connections, 4" x 4" (102mm x 102mm) plate mounted Nema Class 2, suitable for 3 Taco Zone Valves. |
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