Thermal Actuator for Mr. PEX Manifolds Zoom

Thermal Actuator for Mr. PEX Manifolds

SKU:MP700

Brand: Mr. PEX

Mr. PEX
MP700 has been discontinued.
Direct Replacement:
SKU: 5120700
Brand: Mr. PEX
0

Specs

Application: Zoning
Accessory For: Mr. PEX Manifolds
Wiring: Four-Wire
Product Type: Actuator
Type: Thermal
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: Mr. PEX Manifold

Description for Mr. PEX MP700

Thermal Actuator for Mr. PEX Manifolds

Thermal Actuator for Mr. PEX Manifolds

REVIEW SNAPSHOT®

by PowerReviews
Thermal Actuator for Mr. PEX Manifolds
 
4.4

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 5 customers

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Displaying reviews 1-5

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5.0

Good quality, low power consumption

By Tomasz

from Selden, NY

Verified Buyer

Comments about Thermal Actuator for Mr. PEX Manifolds:

Great quality, made in Germany, design with low power consumption in mind. Especially important when you have multiple zones. Comes with two different rings that allows to work with multiple brands of manifolds.

 
5.0

Just what I needed to solve my problem

By Glen

from Ogden Ut

Verified Buyer

Comments about Thermal Actuator for Mr. PEX Manifolds:

During a major electrical surge the circuit that signals the pump to run failed in the closed position, making the pump run constantly. I replaced the faulty actuator with one of these two that I ordered from you. The other is a spare to backup the two different heating systems that I have, which uses them. thank you

 
4.0

works

By CountryBoy

from PA

Verified Reviewer

Comments about Thermal Actuator for Mr. PEX Manifolds:

poorly written/nonexistant instructions. I used these in a system that uses several circulators, and Taco zone valves. Added these on a single large manifold (Rifeng) for zones that contained only one PEX loop. No instructions for that so it took a bit to figure out which wires were which. Yellow wires are transformer/thermostat. The Red wires go to the "T" terminals on the boiler control

works well once up and running.

(1 of 1 customers found this review helpful)

 
3.0

OK

By Evan

from Prior Lake, MN

Verified Buyer

Comments about Thermal Actuator for Mr. PEX Manifolds:

I have no experience to compare these to others.
I just got my system up and running this last weekend - 9 of these actuators.
They work fine.
One of them "showed" the end switch as being closed right out of the box. After actuating once, it worked properly.
I've got two that are in parallel on a Taco zone controller and right now they show the end switch as closed the moment the power goes to the valve.
So I'll have to disconnect one at a time and see if one's defective.

It came with two collars that can mount onto the manifold and the actuator mounts on the collar.
The very poor instructions don't say which collar to use for your specific manifold.

I think Mr. Pex is VERY underdocumented.

 
5.0

solid as a rock

By Terry

from Hood River OR

Verified Buyer

Comments about Thermal Actuator for Mr. PEX Manifolds:

Actuators really tick me off when they go bad but the mr pex have been rock solid with no failures to date and I have some going back 10 years. Less pumps and more actuators and with mr pex I can stand behind this philosophy.

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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.

12 Questions | 32 Answers
Displaying questions 1-10Previous | Next »
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Is there a 2 wire alternative for a Mr. Pex 410-05PK Stainless Steel Manifold? I don't see the need for 4 wires with a zone control.
    Asked on 8/6/2013 by zoom38 from Suffolk, NY

    1 answer

    • CUSTOMER CARE

      A:

      Unfortunately, there is not a two-wire alternative for MP700 (Four Wire thermal actuator for Mr. Pex Manifolds)

      Answered on 8/7/2013 by PexSupply Staff from NY
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    How much current do they draw when activated?
    Asked on 5/24/2013 by Jamie from Toronto

    1 answer

    • VERIFIED BUYER

      A:

      Go to the Mr. Pex web site.
      http://www.mrpexsystems.com/docs/mr_pex_product_catalog.pdf
      Their catalog says 24 VAC, 2VA
      2 VA divided by 24 VAC = 83 mA

      Answered on 5/24/2013 by Anonymous
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Will these actuators work of 24V DC?
    Asked on 3/31/2013 by IanA from Gainesville, FL

    1 answer

    • CUSTOMER CARE

      A:

      Yes, it will

      Answered on 4/4/2013 by PexSupply Staff from NY
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    How do I wire these actuators in parallel to my Taco Zone Valve Relay? I have 4 loops in one zone.
    Asked on 11/25/2012 by Rick from Arden Hills, MN

    1 answer

    • CUSTOMER CARE

      A:

      You need to "piggy back" the four actuators together in the line, but the same number of wires will connect to the control.

      Answered on 11/27/2012 by PexSupply Staff from NY
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Can these be mounted upsidedown?
    Asked on 11/12/2012 by Jake from United States

    7 answers

    • VERIFIED BUYER

      A:

      Yes, they can be mounted any direction

      Answered on 11/12/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes they can.
      I've got two manifolds and asked the same question when purchasing mine -
      one has the PEX coming to it from the floor and the other has them coming
      from the ceiling. So one of my manifolds is upside down. (with the supply
      and return to/from the left)
      It's been great.

      Answered on 11/12/2012 by rcevan from Minnesota
    • VERIFIED BUYER

      A:

      Yes they can be mounted upside down and horizontally. They hold the
      manifold valve in a normally closed state and take a few minutes to open
      after power is applied, when the 24 volt power (AC or DC) is removed the
      solenoid slowly returns to it's off state closing the valve in the
      manifold. When they are taken from the packaging they look to be
      partially open but return to the fully closed state after one power
      cycle. They work very well.
      Best.

      Answered on 11/13/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Mine are right side up by I don't see why they couldn't be. It's only a wax bulb valve and it shouldn't matter.

      Answered on 11/14/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes.

      Answered on 11/13/2012 by Dan from New York
    • VERIFIED BUYER

      A:

      Yes.

      Answered on 11/13/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes you can.

      Answered on 11/13/2012 by Anonymous
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Can I purchase a manifold valve with this actuator?
    Asked on 10/17/2012 by Pierre from United States

    5 answers

    • VERIFIED BUYER

      A:

      The valves are already installed in the manifold & all you need is this
      actuator to automatically operate that valve. Of course you need
      electronic control unit with thermostat to operate the actuator.
      Great company to deal with BTW. They didn't disappoint.
      Good luck with your project.
      Marc Philippe
      Ottawa, ON

      Answered on 10/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The actuator is a valve - a thermostatic valve. It replaces the manual
      balancing valve that comes free on the manifold.

      Answered on 10/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Manifolds and actuator are sold separately. This actuator fits Mr. PEX
      Manifolds http://www.pexsupply.com/Mr-PEX-Manifolds-1844000
      Dan

      Answered on 10/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Not sure what you are asking. Are you asking if there is a single valve for this actuator other than whats on a typical manifold?

      Answered on 10/17/2012 by Anonymous
    • VERIFIED BUYER

      A:

      These actuators are designed to be mounted on manifolds.
      You need one of these per branch of the manifold.

      Answered on 10/17/2012 by rcevan from Minnesota
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Can we ajust the flow on the open position with this actuator or it's simply close/full open.
    Asked on 9/6/2012 by Elclou

    10 answers

    • VERIFIED BUYER

      A:

      Open/Close

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      No. The job of this device is to electronically open/close the zone
      valve in response to a thermostat. A separate flow valve is required to
      set/balance the flow rate for each zone. Some manifold assemblies
      contain such valves.

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      It's open/close only - you adjust the flow with the flow meters/balancing valves on the other manifold arm.

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Open or closed only. Flow controlled separately.
      Sent from my iPhone

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      It is only open/close. You can adjust the flow on the manifold itself if that feature is available. Rifeng is for sure. Something else to keep in mind is that the actuator takes about 2 minutes to open once the thermostat calls for heat and about the same time to close.

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      The actuator is either "on" or "off" and has no adjustment in it. It sits
      on the valve and turns it on/off based on power being applied to it. When
      powered, the actuator takes several minutes to open. When power is removed
      it takes several minutes to close.
      Page 4 of the Mr. Pex catalog shows how to adjust the flow:
      http://www.mrpexsystems.com/docs/mr_pex_product_catalog.pdf

      Answered on 9/6/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Not that I know of. You can adjust how far it closes by adjusting the adapter ring by not screwing the ring down as far. Why wouldn't you adjust the flow by turning the flow meters in or out on the return supply manifold.

      Answered on 9/8/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Yes, there is a plastic adjustment ring which threads on the manifold
      assembly which adjusts the entire actuator assembly up and down, thereby
      allowing balance/adjustment of the valve in the open position. The built in
      flow meters on my Mr. Pex manifold made flow/balance a breeze...

      Answered on 9/6/2012 by Anonymous
    • CUSTOMER CARE

      A:

      The actuator itself can only be open or closed, but most heating manifolds have flow control valves on the supply side.

      Answered on 9/11/2012 by PexSupply Staff from NY
    • VERIFIED BUYER

      A:

      It is just close and open, but usually manifolds for radiant heat have
      valves that you can set flow rate.

      Answered on 9/22/2012 by Tomasz from Selden, Long Island
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Is this unit Also Fit with Rifeng manifold As Mac-Act (2 wires type)
    Asked on 10/23/2011 by Anonymous

    2 answers

    • CUSTOMER CARE

      A:

      Yes, this actuator works with Rifeng manifolds.

      Answered on 10/24/2011 by PexSupply Staff from NY
    • A:

      I used these on a Rifeng Manifold. 2 adapters come with each actuator. Use the dark gray adapters.

      Answered on 1/14/2012 by CountryBoy from PA
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    Well I have two questions
    Why is there 4 wires, do they need voltage to open and close them.
    Are these heads 24 volts.
    Asked on 8/24/2011 by Blueblaz from Northampton Ma

    1 answer

    • CUSTOMER CARE

      A:

      This is a 24-volt unit. It has four wires because two are for power (24 volts) and two are an end switch.

      Answered on 8/26/2011 by PexSupply Staff from NY
  • Thermal Actuator for Mr. PEX Manifolds

    Q:

    What is the thread size of the union to screw onto the manifold?
    Asked on 3/1/2011 by Harry from Picton Ontario CAN

    1 answer

    • CUSTOMER CARE

      A:

      This actuator has specially-designed threads that only fit on Mr. PEX manifolds.

      Answered on 3/2/2011 by PexSupply Staff from NY
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