Thermal Actuator for Rifeng Manifolds Zoom

Thermal Actuator for Rifeng Manifolds

SKU:MA-ACT

Brand: Rifeng

Rifeng
Qty Price
$34.95
/ each
In Stock! Ships in 24-48 Hours
(161 Available)
1

Specs

Application: Zoning
Type: Thermal
Accessory For: Rifeng Manifolds
Wiring: Two-Wire
Product Type: Actuator
Material: Plastic
Max Pressure (PSI): 200 psi
Warranty: 5-Year Limited Warranty
Standards Met: ASTM F1960
ASTM F877
NSF
Max Temp (F): 200°F
Manifold Compatibility: Rifeng Manifold

Description for Rifeng MA-ACT

Thermal Actuator for Rifeng Manifolds

REVIEW SNAPSHOT®

by PowerReviews
Thermal Actuator for Rifeng Manifolds
 
1.8

(based on 4 reviews)

Ratings Distribution

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        Reviewed by 4 customers

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        Displaying reviews 1-4

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        1.0

        Lot of failures

        By patrick

        from Woodbury Heights, NJ

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Thermal Actuator for Rifeng Manifolds:

              I installed 10 of these actuators, replacing another brand that only lasted 1 year. I have already replaced 2 of the 10 in just over a year of service. I have not found a brand that is reliable yet.

              • Was this a gift?:
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              2.0

              Failure Rate is High

              By Tom

              from Princeton, NJ

              Verified Buyer

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                Cons

                  Best Uses

                    Comments about Thermal Actuator for Rifeng Manifolds:

                    Have replaced 5 out of 20 valve actuators on one job. They get warm but don't retract.

                    • Was this a gift?:
                    • No
                     
                    1.0

                    Really Can't Say

                    By zoom38

                    from Suffolk, NY

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about Thermal Actuator for Rifeng Manifolds:

                          I bought one of these to test on my Mr. Pex 10 loop manifold. I chose this one because it was a two wire which is what I need. It is connecting to a Tekmar 335 zone control so I don't need the end switch. Well It screwed on perfectly, I applied 24 volts and nothing happened. No movement, no noise, nothing. So I assumed it didn't work and returned it. Tech support wasn't much help but customer service was good, the return was easy.

                          Now I don't know what to do, I need 10 of them but am skeptical.

                          • Was this a gift?:
                          • No
                           
                          3.0

                          Get a 4 wire instead...

                          By moe

                          from Champlain, NY

                          Comments about Thermal Actuator for Rifeng Manifolds:

                          Had I known about this earlier, I would have bought the part MP700 which is compatible with Rifeng manifolds, has 4 wires instead of 2, and is sensibly the same price.

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                          Q&A: Ask the Questions, share answers

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                          get answers from real customers and in-house experts with AnswerBox.

                          11 Questions | 18 Answers
                          Displaying questions 1-10Previous | Next »
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            Could I wire two-tree actuators for single zone thermostat/controller? I cannot use zone valve, because I want to use 6 loop manifold for two zone, where each will have own thermostat.
                            Asked on 4/6/2014 by vlad from Seattle, WA

                            2 answers

                            • VERIFIED BUYER

                              A:

                              No problem, these actuators are very low current draw. They will typically draw only 0.08 amps at 24 volts (2 watts),per actuator. The total number of actuators that may be used with a zone control will depend on the transformer VA rating of the zone control you are using. Add up the total amps of all actuators on your manifold and multiply this by 24 volts to get the VA of connected load for the actuators. If your total VA does not exceed 80% of the VA rating of the transformer for the zone control, you should have no problem using several actuators per thermostat for your control. The valve actuator you reference appears to be a two wire actuator so be certain that the zone control will allow for a time delay on actuator opening before turning on the boiler or pump. In some instances it can take several minutes for the valves to open and if a low mass boiler is firing it needs to circulate as soon as the burner comes on or overheating may occur. The alternate is an actuator with four wires two of which are for an "end switch" that completes the boiler ignition control circuit only once a valve is open and closes the "end switch".

                              Answered on 4/6/2014 by Anonymous
                            • VERIFIED BUYER

                              A:

                              Just parallel up each actuator ( Common + Hot>> or "c" + "w" ) for each loop
                              you want controlled by the same thermostat. This way when zone 1 calls it
                              heats up actuators say 1-3 or whatever loops on the manifold you want active
                              at the same time. Don't forget the current draw for multiple actuators may
                              over load some thermostats and may need a dry contact relay. Or use a Taco
                              or Argo zone relay panel with 6 zone capacity, then jump the TT connections

                              Answered on 4/6/2014 by Anonymous
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            Can the MA-ACT be installed upside down?
                            Asked on 11/21/2013 by nyin

                            3 answers

                            • CUSTOMER CARE

                              A:

                              The actuator would function in an upside down position, but we would not recommend this orientation because it can be unsafe to install electrical devices below water.

                              Answered on 11/22/2013 by PexSupply Staff from NY
                            • VERIFIED BUYER

                              A:

                              Yes, you can flip the supply and return up or down, inlet left or right. They are set up for the pex feeding down, but in a basement you are feeding up. The emblem will be upside down
                              Sent from my iPhone

                              Answered on 11/22/2013 by Anonymous
                            • VERIFIED BUYER

                              A:

                              Yes, this operator may be installed in any position depending on how your manifold is set. Be wary of any fluid leaks as it is not fluid tolerant (you do want to keep them dry), so if you are making any repairs above these controls it may be best to remove them from the manifold and tie them out of the way if performing service or flushing or purging from a manifold at a higher elevation.

                              Answered on 11/21/2013 by Anonymous
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            I have an extra spot on my manifold for future expansion in a bonus room- what would I need besides this to put the bonus room on an individual thermostat?
                            Asked on 10/4/2012 by MD from Oregon

                            1 answer

                            • CUSTOMER CARE

                              A:

                              You would need an actuator for each loop on the manifold, a thermostat for each zone, and a zone control.

                              Answered on 10/23/2012 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            What is the best way to control these actuators? Which unit would be compatible with a 7 zone,3ea. radiant loops,3ea. 8' wall mounted hydronic baseboard coils and 1 separte loop for a bath room wall mounted fan coil?
                            Asked on 5/2/2012 by chester from Near St. Louis, MO

                            5 answers

                            • VERIFIED BUYER

                              A:

                              I checked on the Reifeng actuators.  I see two wire 24 volt thermal actuators if this is what you are looking at.   I guess, first might be a question; are all your zone circuits "home run" to the same manifold?  If so, you will use three actuators for each zone all wired in parallel. Because these are two wire controls and have no "end switch" to tell the boiler and pump to turn on, they will need to be activated via a zone control box that receives the thermostat signal and then actuates relays to energize the actuators pump and boiler.  I might suggest you check on the TACO ZVC 406 zone valve control.  The manual and spec sheet provide instructions for two wire and four wire zone valve connections as well as expanding the control for up to 20 zones.  Since you have 7 zones perhaps a 4 zone and a 3 zone control will fill your needs. Current draw on the actuators is very low but it is best to check their data (not listed on this website) to see
                              that the total VA load on the control transformer is not exceeded since they will be wired in parallel. 7 zones at 3 actuators each is 21 actuators.  The TACO zone valve control boxes for  3 and 4 zones are 40 VA each.  5 and 6 zone boxes are 80 VA each. The big question is what is the VA rating for the Reifeng actuators???? can any one answer this questions?

                              Answered on 5/3/2012 by Another PexSupply Customer
                            • VERIFIED BUYER

                              A:

                              Taco 24 volt zone control. Depending on how many zones, you can order a Taco zone control box for as many zones as you need.
                              As far as I know, you could install up to 3 actuators to one taco zone circuit. You could use either hydronic either/or radiant with the same Taco zone control box.

                              Answered on 5/3/2012 by Another PexSupply Customer
                            • VERIFIED BUYER

                              A:

                              Mr. PEX actuators work great for single loop zones. For multiple loop zones, use Taco zone valves http://www.pexsupply.com/Taco-570-Zone-Valves-325000 or better yet, use a separate circulator for each zone.
                              In my own house for radiant heat I have a mix of zone valves for the smaller multiple loop zones, separate circulators for the larger multiple loop zones, and then Mr. PEX actuators for the single loop zones that are fed from a Rifeng 7 loop manifold.
                              I’m using the Uponor thermostats to control the zone valves and the Mr PEX actuators. They work GREAT!

                              Answered on 5/3/2012 by CountryBoy from PA
                            • VERIFIED BUYER

                              A:

                              Chester,
                              Your actuators can easily be controlled with 1) Argo AZ-3 zone valve
                              controller and 1) Argo AZ-5. Use the first for the 3 radiant zones, and
                              the second for the four high temperature zones.
                              Do you understand that you have described a 2 temperature system that will
                              require some sort of temperature step-down for the radiant zones?
                              best wishes,
                              Randy the Hydronics Guy

                              Answered on 5/5/2012 by Randy the Hydronics Guy from Chapel Hill, NC
                            • CUSTOMER CARE

                              A:

                              We would recommend a Taco zone valve control.

                              Answered on 5/11/2012 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            what is the benefit of a 4 wire over a 2 wire thermal actuator? what extra wiring will i need to do with a 2 wire actuator for it to function properly ?
                            Asked on 1/18/2012 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              Four-wire actuators have an end switch, which ensures that the circulator will not come on until the zone valve opens fully. Wiring is the same with either type of actuator. You'd just have more wires to connect to your control if you use a four-wire actuator.

                              Answered on 1/19/2012 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            How is this mounted to the individual
                            zone fitting on the manifold? You have to
                            remove the supplied manual valve?
                            Asked on 1/6/2012 by wealthyhobby from N.Y.

                            1 answer

                            • CUSTOMER CARE

                              A:

                              You need to remove the white on/off caps atop the return manifold and replace them with the actuators.

                              Answered on 1/6/2012 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            Does this unit work with the Rifeng RHM03-50PK manifold?
                            Asked on 1/2/2012 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              Yes, this actuator works with all Rifeng manifolds.

                              Answered on 1/3/2012 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            ac or dc on the voltage
                            Asked on 11/17/2011 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              The unit is AC.

                              Answered on 11/23/2011 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            is this the same as a zone valve?
                            Asked on 11/1/2011 by aircommuter from groveland, CA

                            1 answer

                            • CUSTOMER CARE

                              A:

                              Yes, actuators can perform the same function as a zone valve if they are wired properly into a zone valve controller.

                              Answered on 11/1/2011 by PexSupply Staff from NY
                          • Thermal Actuator for Rifeng Manifolds

                            Q:

                            what is the difference between two and four wire
                            Asked on 9/20/2011 by Anonymous

                            1 answer

                            • CUSTOMER CARE

                              A:

                              4-wire models (such as part MP700) have an end switch. This Rifeng part is a 2-wire model.

                              Answered on 9/21/2011 by PexSupply Staff from NY
                          Displaying questions 1-10Previous | Next »

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