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6 Zone Valve Control Module with Priority - Expandable
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MANUALS (4)
Product Highlights
Description
Whether you want to expand up to 20 zones or utilize the advanced features of the PowerPort Cards and Add-on Power Controls, Taco -EXP controls allow for simple integration of advanced features. Plug-in any combination of cards and controls to optimize the operation of any system.
Features:
- Taco Zone Valve Controls work with two-, three-, or four-wire zone valves.
- 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
- Made in the USA
Additional -EXP Features:
- Two Plug-In PowerPort Card Slots
- One Add-On Power Control Plug
- Expandable to 20 Zones
- Interface with -EXP Switching Relays
Specs
| Number of Zones: | 6 |
|---|---|
| Application: | Zoning |
| Width (Inches): | 11-3/4" |
| Height: | 7-1/2" |
| Voltage: | 120v |
| Depth (Inches): | 3" |
| Wiring: | PC Board |
Contact
Questions?
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Product Reviews
Most Liked Positive Review
Replaced a 22 year oldTekmar unit
Most Liked Negative Review
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I would never purchase this. Be careful faulty design.
Quality Zone Control
Get the expandable version
Failed after about 8 months
I buy this brand regularly but return due to ship damage
I will buy this product again
Great product, easy to install, major upgrade
Easy install
I would buy this product again
Does it's job!!
Great Product - Super easy install
Product Q&A
12 QuestionsQ: Will Taco zone valve control work with Tekmar thermostats?
Asked by GK 10 years ago
Add your answer
Verified Reply- SupplyHouse StaffThis should work directly with your Tekmar thermostats as long as they are 24V.
Q: I have a system with two ~2003 era zone valve controllers in a Master-Slave configuration. The slave may be bad as two of the zones are not controlling properly. Can I replace my slave with one of these new ones? Are the new ones backward compatible with the older version?
Asked by T 10 years ago
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Verified Reply- Supplyhouse Staffyou may be able to, not all of Taco's zoning systems are backwards compatible. it would be best to have us or Taco confirm compatibility.
Q: Does the ZVC406-EXP include the 2 necessary 24V transformers?
Asked by Von 12 years ago
Add your answer
Verified Reply- PexSupply StaffYes, the transformers are a standard feature and included in all ZVC models.
Q: Will this unit work with Uponor (Wirsbo) 4 wire actuators SKU: A3010522. Will the end switch function work on all 6 zones. Also, I will currently be using three zone actuators but plan to use all six actuators in the future any problems not wiring all 6 for the time being.
Asked by thumbs 13 years ago
Add your answer
Yes, this is the right unit for the 4 wire actuators. I had a 12 loop manifold and 6 zones with 6 thermostats. I grouped several loops (actuators) together to work with the 6 zones of the Taco unit. I then connected 6 thermostats. I then wired the end switch to the Tekmar 374 Mix Demand. When a thermostat would call for heat the end switch would close the mix demand as well as the relay for the circulator pump on the manifold loop. The 374 took care of the primary loop to maintain the primary loops reset temperature, the variable speed mixing pump and read the temperature on the secondary loop to adjust the variable speed pump's output. So in short yes this should work however do some homework on the rest of the system for radiant is not simple but not rocket science. Look at the Tekmar product or Taco products for mixing to ensure you are sending the right temperatures through the loops off the secondary manifold.
The Taco 6 Zone control will work with your wirsbo actuators. The yellow wires are your 24 volt feed to the actuator, they go on terminals 1&2 on the selected zone of your choice. The red wires on the actuator are your end switch, they go on terminals 3&4 on the same zone. When there is power to the 6 zone relay the green LED will light. When there is a call for heat from your two wires on the thermostat R&W, the yellow LED will light on that zone. After a short period of time the end switch will make in the actuator, that will make the red LED light to come on the same zone. That will pull in X&X on the control module, those terminals should be wired to the boilers X&X or T&T terminals, depending on the boiler control. Taco has a nice wiring diagram you can follow included. If any zone is calling, that end switch will close and pull in the boiler. It is a set of dry contacts with no power going through them. So one zone can pull in the boiler or all six, it doesn't really matter how many. Now if you are using all 6 zones for wirsbo actuators, do not turn on the priority switch. That is there if you are using the boiler to heat domestic hot water with an external tank. You would wire the zone marked priority to the tank with a Taco zone valve or equal. When the tank calls for heat, like during morning showers it over rides all the other zones so that the boiler gives the tank only its heat to satisfy it. You can wire 3 zones now and 3 zones in the future, the control doesn't care. It is a great control for your job. Good luck
Q: What is the difference between the ZVC406-EXP-1 and the ZVC406-3, they appear to be the same, only the EXP is more expensive, also can I hook the RMB-1 into one of these to control my infloor heat as one of the zones?
Asked by Ben 13 years ago
Add your answer
Verified Reply- PexSupply StaffThe -EXP control is "expandable," meaning that it can be connected to other -EXP models if you need to add additional zones. It is possible to connect a Radiant Mixing Block to a ZVC.
Q: I have 6 heating zones plus DHW I need on Priority. What is the best way to "expand" the 6 valve control module to handle all? Is a 4 + 4 better than a 6 + 3 for my need?
Asked by joshetal 14 years ago
Add your answer
Verified Reply- PexSupply StaffBoth zone valve controls must be EXP models. We would recommend two ZVC404-EXP units.
Q: I am going to be connecting this unit to a TACO RMB-1 for a radiant floor system. I do not want to have the RMB-1 control the boiler. How would you suggest I wire the two together? Or should the RMB-1 be the control for the boiler?
Asked by 14 years ago
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Verified Reply- PexSupply StaffYou would wire the RMB-1 to the boiler as if it were a thermostat. Your boiler control will still control the boiler. The RMB-1, when on, will act as a thermostat would in relation to the boiler.
Q: can the sr506 control panel b used with 4 circulator pumps and 4 zone vavles plus main boiler pump and indirect water heater pump or do i need a different control panel.
Asked by tom 14 years ago
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Verified Reply- PexSupply StaffNo, this unit will control six zones which are zoned by 24-volt zone valves that are supplied by a single circulator.
Q: i have a 3 baseboard zones and 2 under floor zones with three circ pumps with seperate thermostats which control would be best thanks william
Asked by mack 14 years ago
Add your answer
Verified Reply- PexSupply StaffIf you are zoning by pump, you should use a switching relay. This control is for systems zoned by zone valves.
Q: what is difference between the priority and nonpriority contorl module and what is it used for.
Asked by tom 14 years ago
Add your answer
Verified Reply- PexSupply StaffZone Valve Controls with priority allow domestic hot water (i.e. an indirect water heater) to take precedence over other calls to the boiler.