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CTS-7524 3/4" 24 Volt Zone Valve
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MANUALS (2)
Product Highlights
Description
Silent-running heat motor saves power via intermittent energizing.
Unique double torsion spring opens and closes smoothly, prevents water hammering, assures positive shut-off.
Leaf-type stack switch with blade terminals allow fast installation under baseboards or wherever space is limited.
Specs
| Application: | Zoning |
|---|---|
| Size: | 3/4" |
| Body Pattern: | 2-Way Straight-Through |
| Width: | 1-3/4" |
| Height: | 3-3/8" |
| Material: | Bronze |
| Min Flow (GPM): | 1 |
| Max Flow (GPM): | 4 |
| Flow Range (GPM): | 1-4 GPM |
| Amperage: | 0.6 |
| Voltage: | 24V |
| Position: | Normally Closed |
| Depth (Inches): | 2-1/2" |
| Max Pressure (PSI): | 125 |
| Flow Capacity (Cv): | 2.57 |
| Wiring: | 3 Wire |
| Hertz: | 50 60 |
| Max Ambient Temp (°F): | 125°F |
| Max Close-Off PSI: | 35 psi |
| Min Temp (F): | 40°F |
| Max Temp (F): | 240°F |
| Temperature Range (F): | 40°F - 240°F |
| Connection Type: | Sweat |
Questions?
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Product Reviews
I would buy this product again.
Zone Valve
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No water hammer, but weak switch contact
Compact Size Reason for Purchase
Product Q&A
1 QuestionQ: What position is the valve in with no power? NO/NC
Asked by Russ 14 years ago
Add your answer
With the power off the pin on the valve is extended. With the power on the pin is actuated closed, down and not extended. Hope this helps.
Valve is closed with no power to it
Hi There, The valve with the actuator on it, with no power is in the closed position that is NC. You need power to open the valve. If you take the actuator off of the valve, the valve will go open as it is a spring operated valve assembly that is a spring at the bottom opens up the valve. Make sure the system that the valve is in is shut off before doing any maintenance on the valve. Best regards, Stan
It should be closed.
I have had 23 years of experience with these valves installed in 47 apartments. They work well and the heads are simple to replace, without tools. When the power goes out, I believe the valve remains in its current position with the control head still in place. Either open or closed depending on where it was when power was lost. (not 100% sure that if the head is open it wouldn't close with loss of power) However, if you lose power, you simply pop the head off and the valve itself would fail in the open position. The valve is spring loaded to be in the open position, if there is no control head in place. The control head pushes down on a plunger to close the valve and allows the plunger to rise when there is a call for heat. Sorry I'm not 100% sure if a valve with the control head in place would remain open if it was already open when power was lost. It has never been an issue that I've had to address. But if you lose power you can get heat, as long as your boiler and circulator are running, by popping the head off. Also, if the control head stops working at some point, you can pop it off to continue to get heat while you pick up a replacement.
It should be in the closed position...if it does not close when power is off. Try cleaning the contacts...This is a very old part and should be replaced with a newer up to date one. Hope this answered your ?