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6-Loop EP Radiant Heat Manifold Assembly w/ Flow Meters
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Product Highlights
Description
For cost-effective, durable, hydronic radiant systems, Uponor now offers the Engineered Plastic (EP) Heating Manifold. This new manifold is comprised of thermoplastic, high-performance, advanced materials suitable for use under conditions of high impact, heat and moisture. Successfully installed throughout Europe for the past five years, Uponor now offers this innovative new product in the United States and Canada.
This strong, durable manifold is made of an advanced engineered plastic, which withstands corrosive environments and is unaffected by the rising cost of metal, making it an economical solution for all radiant projects.
Features and Benefits
- Flexible, modular design for expansion in the field
- Resists corrosion, pitting, scaling, high chlorine levels and ultraviolet light
- Offers cost-effective solution to copper, brass and other metal alternatives
- Attached flow meters provide fast, easy balancing for radiant loops
- Offers vent and purge capability
- Temperature Ratings - 140¦F at 87 psi, 158¦F at 72 psi, 176¦F at 58 psi, 194¦F at 43 psi
PEX Loop Fitting Assemblies Options
- A4020313: 5/16" PEX to R20 Loop Fitting Assembly
This fitting will connect 5/16" PEX to a loop of the Manifold without requiring the use of a PEX Tool. - A4020375: 3/8" PEX to R20 Loop Fitting Assembly
This fitting will connect 3/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool. - A4020500: 1/2" PEX to R20 Loop Fitting Assembly
This fitting will connect 1/2" PEX to a loop of the Manifold without requiring the use of a PEX Tool. - A4020625: 5/8" PEX to R20 Loop Fitting Assembly
This fitting will connect 5/8" PEX to a loop of the Manifold without requiring the use of a PEX Tool.
ProPEX Loop Fitting Assemblies
- Q4020375: 3/8" ProPEX to
R20 Loop Fitting Assembly
This fitting will connect 3/8" PEX to a loop of the Manifold but requires a ProPEX Expansion Tool to make the connection. - Q4020500: 1/2" ProPEX to
R20 Loop Fitting Assembly
This fitting will connect 1/2" PEX to a loop of the Manifold but requires a ProPEX Expansion Tool to make the connection. - Q4020625: 5/8" ProPEX to
R20 Loop Fitting Assembly
This fitting will connect 5/8" PEX to a loop of the Manifold but requires a ProPEX Expansion Tool to make the connection. - Q4020750: 3/4" ProPEX to
R20 Loop Fitting Assembly
This fitting will connect 3/4" PEX to a loop of the Manifold but requires a ProPEX Expansion Tool to make the connection.
Optional Installation Accessories:
Loop End Cap
- A2080020: Manifold Loop End Cap
These allow you to cap off a loop of the manifold if it will not be used.
TruFLOW Supply/Return Ball Valves
- A2631252: TruFLOW Supply/Return Ball Valves (box of 2)
These allow you to quickly shut-off the supply and return sides of the manifold. These valves are R32 thread x R32 thread. The supply and return ends of the manifold is R32.
TruFLOW Supply/Return Adapters
- TruFLOW Supply/Return Adapters
These allow you to connect the manifold to your supply and return lines. The supply and return end of the manifold is R32 thread. Choose an R32 adapter that will connect the manifold to your desired application.
- A3030522: Thermal Actuator (2 Wire)
If you want to use your manifold to heat multiple zones, you can purchase return side actuators that work along side thermostats. The actuators act as zone valves to allow you to use one manifold to control the temperature in different rooms independently.
Specs
| Number of Outlets: | 6 |
|---|---|
| Type: | Manifold |
| Fitting System Compatibility: | Expansion PEX PEX Compression |
| Material: | Brass |
| PEX Size: | 1/2" 5/16" 3/8" 5/8" |
| Supply Thread: | R32 |
| Loop Thread: | R20 |
| Application: | Heating |
| Manifold Compatibility: | EP Truflow,Truflow |
| Test Pressure (PSI): | 145 psi (max water) 100 psi (max air) |
| Max Flow (GPM): | 15.4 |
| Flow Capacity (Cv): | 1.35 |
| Max Operating Pressure: | 87 psi at 140°F 58 psi at 176°F 44 psi at 194°F 72 psi at 158°F |
| Height (Inches): | 14" |
| Depth (Inches): | 2.7" |
| Features: | w/ Visual Flow Meters |
Questions?
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Nice Product
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Uponor EP manifolds
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easy to use
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Product Q&A
36 QuestionsQ: Are the EP manifolds compatible with the motorized valve actuator (MVA, SKU: A3020522)?
Asked by Hoffer 13 years ago
Add your answer
Verified Reply- PexSupply StaffUnfortunately, SKU# A3020522 is not compatible with EP Radiant Heat Manifolds. You can use the following actuators with EP Radiant Heat Manifolds: Two-Wire Thermal Actuator For EP Heating Manifold (SKU# A3030522) OR You can use the EP Heating Manifold Actuator Adapter (SKU# A2671300) with a Two-Wire Thermal Actuator (SKU#A3020416 ) or a Four-Wire Thermal Actuator (SKU# A3010522)
Q: will a thermal actuator part # a3020416 work on this?
Asked by MIKE 13 years ago
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Verified Reply- PexSupply StaffYes, but only if you use the part A2671300 actuator adapter.
Q: installing to bottom of subfloor with joist trak in 1/2" pex 1500LF to heat all building. how many loop manifold is needed for this application
Asked by Brian 14 years ago
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Verified Reply- PexSupply StaffThis ultimately depends on the required flow rate and head pressure. You would likely need to break 1,500 linear feet of tubing into at least five loops and maybe more to be on the safe side.
Need a lot more info to answer the question. However with 1500LF I would use 5 loops. You still need to do a heat loss calculation to know if you have enough emitters(tubing).
You need 8 loops for this system
Q: The installation guide for the EP Heating Manifold always shows the supply manifold on the bottom and the return on the top. I presently have a metal manifold that I want to replace with an EP manifold. However, the supply is on the top and the return on the bottom. It would be much easier to replace the manifolds one for one. Is there a problem putting the supply manifold on the top and the return manifold on the bottom?
Asked by SKM - dabbler extraordinaire 14 years ago
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Verified Reply- PexSupply StaffIt does not matter whether the supply is on the top or on the bottom, unless you are using loop actuators. It is wise to put the supply on the bottom if you use actuators so that you do not have water running over electrical devices.
You can arrange the manifolds either way. I have several of these and the only difference would be that it looks like the brackets are made to have the flow meters on the bottom manifold. The flow meters are 3.5 inches tall and the caps on the other manifold are 1.25 inches tall. You will end up with some space between the bottom manifold and the top manifold where the flow meters would be. No big deal though. Jon
No problem. You just want the supply going into the flowmeters. The two branches snap in and out of the mounting brackets, and can be changed from top to bottom.
There should be no problem with the supply in either position. Depending on the circumstances, It may be easier to purge the air with the supply on top. The critical thing to look for is the direction of flow from the circulator pump and make sure the flow is not going the wrong way or against a flow check valve. I have used the EP manifold in my own home. You want to make sure to use the Uponor zone valves and especially their thermostats. Also but some additional fitting packages for the loops to terminate to tubing(depending on the size). Nuance leaking around the nuts is sometimes a problem. The manifold does not come with these parts. Good luck
I don't see why it would not work...it would be confusing to anyone who tried to work on it in the future though.
Q: I plan using quk trak for heating 3000sqft home. because of the 250ft loop limit i will need probably about 14 loops of 5/16. can i connect more than one loop to each input/output ? if not how can i do it ? also the limit of 250 per loop includes only the floor surface tubing or also the two ways from and to the manifold ?
Asked by Erez 14 years ago
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Verified Reply- PexSupply StaffYou can only connect one run to each port on a manifold. The 250-foot limit includes the entire length of the run from the time it leaves the manifold until it returns. With 14 total loops, you would need to use multiple manifolds.
I would buy at least 2 manifolds. Also, check to see if 5/16" pex maximum length 250'...I believe it is less. Calculated length is from inlet to outlet of manifold. I would not put more than one tubing circuit on individual manifold port...seems to defeat purpose of individual ports and zone control. Buy as many manifolds or manifold port combinations as needed to compliment floor tube area per tube diameter length parameters.
1 5/16 loop goes on each of the of the in and out of the manifold. The picture in this email is a 4 loop, not an 8 loop. The feeder lines going to the manifold itself will be larger, depending on the flow rate and distance traveled. They do not count as part of the 250'. You do need to design it so the loop lengths on the manifold are approximately equal.
The loop size limit is from the outlet on the manifold all the way back to the inlet on the manifold, so total length of all pex is included. You will need 2 of the seven or eight loop manifolds to accommodate your project size because you can not connect more than one loop to any one station on the manifold.
Do you mean 5/8" pipe Sent from my iPhone
Q: Where do you specify on what size tubing you are connecting?
Asked by newguy 14 years ago
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Right on the Overview Page, down the LH side are the specs. The PEX tubing size is given (in this case: 3/8", 1/2", 5/8" & 5/16") as well as the Loop Thread (in this case: R20). So, you need the style of fitting assemblies (either compression fittings or ProPEX, there may be more) with R20 thread.
Q: does the manifold come with the R32 adapters and what size, for the tempered supply and return to the main. (not the loops)
Asked by Rob 14 years ago
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Verified Reply- PexSupply StaffR32 fittings for the main supply and return lines are not included. They are available separately in 3/4" and 1" sizes with copper, NPT, and ProPEX connections.
It does not come with adapters. You need to purchase the size based on your loop design.
R 32 adapters are not included. Supply and return lines need to be sized for flow. Taco web site has some good tutorials. Sent via BlackBerry by AT&T
You will need to purchase the adapters separately. A4143210 - R32 x 3/4" Pipe (1" Fitting) Copper Adapter or A4133210 - R32 x 1" Pipe (or 1-1/4" Fitting) Copper Adapter are your supply and return R32 adapters. I used A4020500 for my 1/2 inch pex loops to manifold R20 connections. They have the other sizes for the R20 connections too. Jon
Q: Is there a specific supply and return side to this manifold? Does the flow meter side indicate supply?
Asked by Man 14 years ago
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Verified Reply- PexSupply StaffThe supply side of the manifold includes the flow meters.
Yes. The supply should go into the side with the flow meters, and return to the heat source from the other side. If you reverse these, the system will work, but you will not get a reading on the meters.
The supply side is the one with the flow meters on it. That info is discernible from the instructions but you reeeeeally have to look. It's important that the manifolds be the right way 'round. Good luck.
The flow meters are on the supply side.
Yes, the flow meters indicate the supply side.
Q: I HAVE A WIRSBO 4 SYSTEM INSTALLED ALREADY. I HAVE 4 ZONES CONTROLLED BY THERMOSTATS. CAN THIS REPLACE MY PRESENT MANIFOLD WITH NO ADDITIONAL PARTS NEEDED????
Asked by BOB 14 years ago
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Verified Reply- PexSupply StaffYou can use this manifold. The only extra parts you would need are fittings to connect all your piping to the manifold (both the four PEX loops and the supply and return lines).
it all depends what you have now and what you trying to do. If you have a four zone manifold with the same size unions, then yes it can work. You have to put the 4 heads on here too to control each zone.
yes
Q: Can I install this manifold in a 4 loop system, shutting off the 3 unused loops for future use? If so, how do I shut the unused ports off?
Asked by John 14 years ago
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Verified Reply- PexSupply StaffYou can install the manifold as you describe. To shut off the unused loops, you can use the flow meter valves or part A2080020 loop caps (MP124 caps are for Rifeng and Mr. PEX manifolds).