UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer Zoom

UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

SKU:97525922

Brand: Grundfos

Grundfos
97525922 has been discontinued.
Suggested Alternative:
SKU: 98420224
Brand: Grundfos
2

Resources

Specs

Includes: 12 hr timer
Aquastat
Line Cord
Check Valve
Connection Size: 1-1/4"
Connection Type: Union
Voltage:
?
115v
Max Pressure (PSI): 145
Flow Range (GPM): 0-3
Max Flow (GPM): 3
Head Range (ft.): 0-5.4
Max Head (Ft): 5.4
Temperature Range (F): 36°F to 203°F
Phase: 1
Type: Pump

Description for Grundfos 97525922

Note: This model is 115V, 1-1/4" Union Connection, and is equipped with a 5 Ft. Line Cord, Timer, Check Valve, Isolation Valve, and Aquastat. This unit does not include the union connection. Must be purchased separately.

UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

REVIEW SNAPSHOT®

by PowerReviews
GrundfosUP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer
 
4.6

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (8)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (5)

Reviewed by 13 customers

Displaying reviews 1-10

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5.0

Works perfectly

By Jim

from Colorado Springs

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Purchased to replace exact same recirc pump that had failed after approximately 7 years of constant use. Very quick easy to remove/replace and immediately worked as advertised.

 
5.0

Not bad for discontinued.

By Plumber Rick

from Salinas, CA

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Ferguson told us this pump, that was speced for a project, was no longer available. Supply House had 11. Can't go wrong with Grundfos pumps. Thanks Supply House.

 
4.0

Works as Advertised - Replacement

By Stlhngtf

from Colorado

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

I had this same product installed for approx. six years. First one failed, ordered replacement so I could just bolt in. Does improve time. Has was not piped with a loop, installed a .5" line as close as I could to farthest fixture.

 
5.0

Hot Water Circ Pump works great!

By Kyler

from Richmond, CA

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Use this pump to circulate hot water in my three story house. Works great and delivers hot water everywhere in seconds. Quiet operation and easy to set up and use.

(1 of 1 customers found this review helpful)

 
5.0

Works Like a Champ

By Dailyrider

from San Clemente, CA

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

This is a terrific pump. I found it easy to program and very efficient. It took less than 10 mins to circulate hot water to all faucets in my house.

(1 of 1 customers found this review helpful)

 
4.0

Don't forget the Unions!

By GrindGarage

from Ocean City, NJ

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

I found this with a Google search. After purchase I realized that it ships without unions. Great value, new install. Hope it's there for life of home.

  • Was this a gift?:
  • No

(1 of 1 customers found this review helpful)

 
5.0

super product

By Martin Palmer

from Glasford, Il.

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Works great

  • Was this a gift?:
  • No

(3 of 3 customers found this review helpful)

 
4.0

DHW recirc install

By psychocross

from Seattle

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Product arrived as labeled. A link or recommendation could be added to remind the purchaser to also order the correct union kit. When the air has been cleared the unit is nearly silent as advertized.

  • Was this a gift?:
  • No
 
5.0

UP-10-16BU/ATLC Works Perfectly

By John

from Reno, NV

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

The Grundfos water circulator works perfectly. The pump worked right out of the box and has been flawless since. Very easy to set up. Great product and certainly an outstanding value to have working in your home.

  • Was this a gift?:
  • No

(1 of 1 customers found this review helpful)

 
4.0

Works well.

By Bob the Retired

from Sierra Vista, AZ

Verified Buyer

Comments about UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer:

Installation was easy as it replaced the same model pump. First pump lasted 7 years. Operating instructions need to be written out in English. The stick figure operating instructions don't give a full explanation on functions, especially how the thermostat works and when the green light should be on.

  • Was this a gift?:
  • No

Displaying reviews 1-10

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Q&A: Ask the Questions, share answers

Do you have questions about this product?

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

6 Questions | 22 Answers
Displaying questions 1-6
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    How can you tell the direction of flow for the pump?
    Asked on 3/23/2015 by Tim from Albuquerque, NM

    2 answers

    • VERIFIED BUYER

      A:

      It is forge-stamped with an arrow on the brass pump body

      Answered on 3/23/2015 by Anonymous
    • VERIFIED BUYER

      A:

      It's marked - pull off the back insulation. Also, blow in it. The check valve will dictate the flow direction.

      Answered on 3/24/2015 by Anonymous
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    I installed this in my closed loop setup. My last hot water tap is within inches of where the hot water pipe turns back to the pump. I also have a tank-less hot water heater. The setup works great at all taps except for the last one before the loop. At this tap the water goes hot to cold to hot again. The only reason I can think of for this issue is that I did not allow a longer run of pipe after the last tap. Here is a sample of my system:

    taps
    __|_________|___________|
    |_________pump___ |
    water main__| |
    | |
    cold in heater
    Asked on 3/18/2014 by grindgarage from United States

    3 answers

    • VERIFIED BUYER

      A:

      Sorry. I can't help with your issue. My 'wild guess' is that it's some
      interaction between the circulator/loop and the tank-less water heater.
      And NOT an issue with pipe lengths. My installation is on a tank-type
      water heater.
      Good Luck.

      Answered on 3/18/2014 by Anonymous
    • A:

      FIXED, put in a check valve, unit works great and functions well with my tankless setup

      Answered on 4/24/2014 by grindgarage from ocean city, nj
    • VERIFIED BUYER

      A:

      Something doesn’t sound right. If the loop is up to temp, all the water in
      the loop should be the same temp. Do you have a check valve1 in line with
      the cold water makeup? It stops back flow to the cold water lines when the
      taps are open to cold water.
      As a test, turn on the pump and let the loop come up to temp. The water
      heater should come on and stay on until the loop is hot. If the hot water
      tank cycles a number of times before the loop is hot, you may have to play
      with the water heater thermostat “operating range”. Or ‘dead band’ as
      opposed to ‘setpoint’. Or it’s a sizing issue.
      Once it’s up to temp and the water heater is cycling normally, open up the
      last tap. Monitor the water temp entering the pump. (the return of the hot
      water loop) If it gets cold quickly you are back flowing through your pump
      from the cold water makeup. Also notice if the water heater satisfies when
      Tap3 has been running for a while. If it does, and the water temp is still
      fluctuating, depending on how your piping is physically laid out, you might
      need to add a check valve2 after the pump. (Preferably it should be before
      the pump) It allows flow from pump to water makeup line and back to the
      water heater but not from the cold water make up line, backwards through the
      pump. When the last tap is open, if the resistance to flow is less flowing
      back through the pump, rather than flowing in the normal direction through
      the house, it might explain the rapid temp fluctuation at the last tap.
      Keep in mind these pumps do not have a lot of head pressure so it may, or
      may not flow right if the check valve is installed after the pump. You will
      then be forced to put it in front of the pump if at all possible.
      I was thinking the water heater might not be sized right but you mentioned
      the last tap is the only one having issues.
      How I understand your piping to be: If not, this is how it should be. ;)
      Hope the formatting transfers on this awesome text drawing…. LOL
      (chkvlv1)
      Cold water make upà--- X ------à-------tankless hot water
      ------------à------Hot water loop -------à------------------------|

      Answered on 3/18/2014 by Anonymous
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    My house is 2 story, w/4 1/2 baths plus kitchen located from one end to the other. Should I run a return line from each location and tie them into one return prior to electric water heater? Would this pump be strong enough for the system, if not what would you recommend?
    Thanks, Tim
    Asked on 1/25/2014 by Tim from Oxford, Ga.

    3 answers

    • VERIFIED BUYER

      A:

      Assuming this is a home under construction, normally one would route a main hot water supply line around the home so that it comes near each appliance. The end of this main line is then returned to the bottom of the WH with a small line. This pump should work well if plumbed in this way.

      Answered on 1/25/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I have found that these pumps will work easily with up to 100 ft. of 1/2” return pipe.
      Broadly speaking, recirculation works as a loop. If you want to design a system with multiple branches, a manifold, flow control and more, you need professional expertise.
      Also note, that you need a union kit with this pump.
      Good luck.

      Answered on 1/25/2014 by Anonymous
    • VERIFIED BUYER

      A:

      I can NOT directly answer your question. I use this circulator/pump for a
      single return line from our master bathroom. It's a two story house with
      the bathroom on the second floor and the circulator in the basement (about
      40' lateral distance).
      My (non plumbing professional) answer is that combining multiple return
      lines into a single small circulator won't work correctly. This
      circulator is small and all of the flow will be from the loop of least
      resistance. Most loops won't see much flow.
      I don't have a better solution, but I'd ask a plumbing professional. PLUS,
      not all plumbing professionals understand hot water circulation systems.
      (based on personal experience....).
      I hope this helps.

      Answered on 1/27/2014 by Anonymous
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    IS THIS PUMP WORKS FOR TWO STORY HOME
    Asked on 3/27/2013 by BOYAJIAN from SUNLAND CA

    2 answers

    • VERIFIED BUYER

      A:

      Yes, I am using it on a two story home. Pump is in the basement, the
      bathroom that it serves is on the second floor.

      Answered on 3/27/2013 by Anonymous
    • VERIFIED BUYER

      A:

      Hi,
      This pump has only a small headroom( less than 9 feet) . In addition, the
      quantity of water pumped up is decreases as the head ft. increases just like
      any pumps.( Look into the graph that shows the relation between Height(
      head) verses quantity of water that can be pumped up.
      This pump will not or capable of the job you want it for.
      I would suggest you look into a higher capacity and higher head pumps.( look
      at the graph showing this relationship of various pumps that Grundfos
      makes). Drundfoss makes high quality and reliability pumps and offer many
      choices for various applications. Nice company. Their application group
      should be able to help you.
      Good luck.
      Bob.n.

      Answered on 4/10/2013 by Anonymous
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    does the return line use the drain on water heater or the cold water in
    Asked on 8/8/2012 by boots from sequim wa

    5 answers

    • VERIFIED BUYER

      A:

      In my case, the connection is to the HWH drain.

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

      A:

      In most circumstances, either the bottom drain port or the cold water in
      port on the tank should work. If you have a thermostatic mixing valve,
      then it's more complicated. My old recirculation pump returned to the
      bottom drain line. My new tank configuration (using the UP10-16BU)
      returns to my mixing valve, but it's really the cold water inlet... SO,
      without a mixing valve, either the drain or the cold water inlet should

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

      A:

      You can use either style of piping for the return line. If the cold water line is used at the water heater, a check valve is needed to assure you do not push hot recirculated water into the rest of the house via the cold branch. We also always recommend lever handle, full port isolation valves on either side of the pump along with tees with hose bibbs for bleeding air out. When installing recirculating systems, don’t forget insulation on the system and also be sure to always use long sweep elbows for all the hot and return to prevent erosion of the piping system.

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

      A:

      The return line goes to the water heater drain.

      Answered on 8/12/2012 by Anonymous
    • VERIFIED BUYER

      A:

      Cold water in.
      Drain is totally different loop and has nothing to do with recirculation.

      Answered on 8/24/2012 by Anonymous
  • UP10-16BU/ATLC 1-1/4" Union, 115V Pump, w/ Check Valve, Line Cord, Aquastat, and Timer

    Q:

    Does this pump include the unions, or are they a seperate item?
    Asked on 5/6/2012 by N8 from Missouri Ozarks

    7 answers

    • VERIFIED BUYER

      A:

      The pump does not include the unions. They are a special Grundfos part.
      Std. unions will not work with the pump.

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      No, the unions are separate. 1-1/4” refers to the outer nut...you can get inlet sizes of 1/2” or 3/4”.

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Hi,
      I have to buy the Grundfos union flange separately that has to be soldered
      on to the ¾ inch copper pipe on the sweat side.. 1 ¼ inch side screws on to
      the pump. There is a washer insert that keeps it tight to prevent any water
      leakage.
      I bought the Grundfos union flange from another hardware store but later
      found out that PEX supply does carry it( I think it is under 20 dollars).
      Being not a plumber, I had to research out as I had a similar problem.
      If you want me research out the specific part let me know. Grundfos make the
      union flange.
      Bye now.
      bobNarasimhan.

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      no it does not have 1/2 of the union.  Only 1/2 is attached.

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      Hi,
      This is what I used .
      It is a separate item. I could not find it under PEX supply. But others
      carry the item.
      It may be the reason that few people buy the pump from PEX supply. You need
      the pump and also the union sweat. Strongly suggest that PEX supply should
      also carry this item SKU529911.
      3/4" Sweat Bronze Grundfos Pump Union Set GU125
      <http://www.pexuniverse.com/sites/default/files/imagecache/product_full/grun
      dfos-union-set-metal-sweat-34.jpg> Description: 3/4" Sweat Grundfos Pump
      Metal Union Set, Grundfos 529911
      Click on image to enlarge
      Description: Grundfos
      Description: Available For US Only
      Brand:
      SKU#:
      UPC#:
      Grundfos
      529911
      ***.****30
      <http://www.pexuniverse.com/1-sweat-bronze-grundfos-pump-unions#write-review
      -form-expander> Write a Review
      No reviews yet

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      The pump connects via the 1-1/4" union fitting. You MUST purchase the mating union fittings. For example, I needed to interface with 1/2" sweat and purchased that union set, don't have the part number here. They also have union 'ends' for NPT interface. So I guess the answer to your question is NO.
      Sent from my iPad

      Answered on 5/6/2012 by Another PexSupply Customer
    • VERIFIED BUYER

      A:

      No. The unions are not included.

      Answered on 5/6/2012 by Another PexSupply Customer
Displaying questions 1-6

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