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ZVC406-4 has been discontinued
Discontinued March 31, 2026
This product was discontinued because the part number was changed by the manufacturer. No modifications were made to the replacement product.
MANUALS (4)
This item replaces: ZVC406-3
Direct Replacement:
6 Zone Next Generation Zone Valve Control Module with Priority, ZVC406-5
Product Highlights
–
120v
6
10-1/4" Width
6.75" Height
2-3/4" Depth
Description
–
Taco Zone Valve Controls work with two-, three-, or four-wire zone valves. Fully fuse protected,
they also include two isolated end switches and a built-in priority switch. The contractor friendly
PC board layout eliminates the problems caused by incorrect wiring and the unfinished look of
conventional zone valve installations. The sturdy screw connections add additional reliability, while
the external indicator lights provide instant diagnostic feedback, reducing installation time. All Taco
Zone Valve Controls are UL and CSA listed and carry an extended 3 year warranty.
Use them combined with Taco Zone Valves and Thermostats to maximize system performance and dependability.
Features:
Use them combined with Taco Zone Valves and Thermostats to maximize system performance and dependability.
Features:
- External Indicator Lights
- Switchable Priority
- Simplified Wiring
- Works with 2, 3, or 4-Wire 24V Zone Valves
- Compact Design
- Fuse Protected
- 100% Factory Tested
- Two Isolated End Switches
- Extra Set of Dry Contacts
- Contractor Friendly PC Board Layout
- Universal Thermostat Compatibility
- UL and CSA Approved
- Sturdy Screw Connections
- Extended 3 Year Warranty
Specs
–
| Number of Zones: | 6 |
|---|---|
| Application: | Zoning |
| Width (Inches): | 10-1/4" |
| Height (Inches): | 6.75" |
| Voltage: | 120v |
| Depth (Inches): | 2-3/4" |
| Wiring: | PC Board |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
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Product Reviews
4.82 out of 33 reviews
100% would recommend this product
5 star
82%
4 star
18%
3 star
0%
2 star
0%
1 star
0%
Customer Images
Showing 1-10 of 33 reviews
Taco controls
Taco pumps and controls are straight forward Easy to connect and give years of reliable use
Clark
Buffalo, NY
2 years ago
Verified Buyer
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Taco ZVC-406-4 Zone Valve Control 👍
I am using this for radiant heat in a 4800 sq.ft home and for indirect DW heating on a 119 gal indirect water tank! The board is really easy to setup and straight forward! The only thing I would like to see is a change in the wiring of the input and outputs…making the therminal connectors that will just plug in on the mother board instead of having to wire each input/output! This would make changing the board out easier and faster!
JJ
Battlement Mesa, Co
2 years ago
Verified Buyer
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Great product. Shipping costs too high.
Exact replacement part. Easy to install. Shipping does not have to be this high to send a product of this size. Every parts store I spoke to recommended Supply House but each said shipping cost were out of line.
Quid
Petersburg, Alaska
2 years ago
Verified Buyer
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Ordered and received the next day!
Perfect, exact replacement for the unit that had a defective board.
Phil
Avon, CT
3 years ago
Verified Buyer
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Will buy again
All I need
Bobcat
Bend, OR
4 years ago
Verified Buyer
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Yes!
I use the six zone valve control to work the the radiant heat system in my house.
alfa
NY
4 years ago
Verified Buyer
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Nice product
This zone valve controller is a great product and allows to clean up the mess of wiring that comes with zone valve controls. The only complaint I have with this product is that the system pump always activates on any zone call, even the DHW/priority. If you have a scenario where your DHW call should only activate the DHW circulator and not the system circulator, you can't wire your system circulator through this ZVC. If you want to use DHW with priority it will handle that by using the secondary relay. I worked around that issue with a separate SR501.
ms570
NY
4 years ago
Verified Buyer
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I will buy again.
Very easy to use.
aliner
Friendship, NY
4 years ago
Verified Buyer
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I would by this product again
Straight forward clear installation directions
Jack
Palmyra ny
5 years ago
Verified Buyer
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Hope fully not -- Buy this product again and again
The product works as designed. I'd say big deal but when you buy it and it doesn't work as advertised; these guys have the process. BTW, they do have a problem. They quote a delivery date which, so far, has been a day better than reality.
Hal
Bellvue , CO
5 years ago
Verified Buyer
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Product Q&A
6 Questions6 Questions
Q: Hello, This product references 2 transformers, but never says if they're included or sold separately?
Asked by B@home 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffTransformers are built into the control module.
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Q: Will the priority zone relinquish control to the other zones after a certain time? Eg, if after 2 hours of the PRI zone calling for heat, will it allow the others to activate, even if it is not satisfied?
Asked by mikeconte 9 years ago
Add your answer
Verified Reply- SupplyHouse StaffYes, after an hour.
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Q: My boiler needs to continue circulating water after the zone(s) heat need is met in order to cool down internally (burner off). Does the controller do this? Wiring?
Asked by Chuck 10 years ago
Add your answer
Verified Reply- Supplyhouse StaffNo it does not, the pump will only be running when there is a call for heat.
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Q: Will this control talk back to the boiler and turn the temperature up to the max useing zone 6 as a priority seating. I have a older taco 6 zone control box right now and it does not alow for this. In the spring and fall I would love to turn my boiler down to 130 for heating. The problem is I am useing some home made tube heat exchangers for my domestic hot water that needs 150 to heat the domestic hot water.
Asked by Shawn 11 years ago
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Verified Reply- SupplyHouse StaffWhen using zone 6 while switched to priority when that zone is actuated all other zones will stop operation and the system will fulfill zone six's need until it is satisfied. If the system calls to zone six continuously for more than an hour power returns to the other zones and then they will all function independently.
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Q: I have 6 zone valves that use one circulator pump. One circulator pump for DHW. One more circulator that used used for for the boiler. Would this controller work for me??
Asked by Fer 12 years ago
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Verified Reply- SupplyHouse StaffThis control will work with six zone valves and six thermostats. It can also handle a circulator pump. To install a second circulator pump for domestic hot water, you will wire that pump to the priority zone 6 on the back of the panel with the jumper connection. For a wiring diagram please see here: http://s3.supplyhouse.com/product_files/Taco-ZVC406-4-Install.pdf
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Q: I have a 6 zone system and plan to use 6 thermostats and 6 valves on six manifolds, will the taco 6 zone work for this and what valves should I use to shut down each manifold as the thermostat comes up to temperature? Also I plan to use two circulating pumps, one for two manifolds and one for four manifolds, will it turn the pumps on and off too? Thanks
Asked by LEE 13 years ago
Add your answer
Verified Reply- PexSupply StaffThis control will work with six zone valves and six thermostats. It can also handle a circulator pump, but you would need to link an additional switching relay to it if you plan to use multiple circulators. We would recommend Taco Zone Sentry valves.
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