ALPHA 15-55 F/LC Cast Iron Circulator Pump Zoom

ALPHA 15-55 F/LC Cast Iron Circulator Pump

SKU:59896832

Brand: Grundfos

Grundfos
Qty Price
$154.89
/ each
$446.85 / box (3 units x $148.95)
In Stock! Ships in 24-48 Hours
24 Available

Specs

Material: Cast Iron
Application: Zoning
Horse Power:
?
1/12
Flow Range (GPM): 0-21
Head Range (ft.): 0-19
Min Temp (F): 36
Max Temp (F): 230°F
Max PSI:
?
150 psi
Phase: 1.0
Voltage:
?
115v
Amperage:
?
0.65
Type: Pump
Connection Type: Flanged

Description for Grundfos 59896832

Grundfos is proud to introduce the next generation of energy efficient circulators - the Grundfos ALPHA. By incorporating a permanent magnet motor design, power consumption is now reduced by 50%. The Grundfos ALPHA adapts to the variable demands of the system without sacrificing comfort. Using the AUTOADAPT feature, the Grundfos ALPHA will analyze the system and adjust to meet your heating demands.

Features:

  • AUTOADAPT measures system changes automatically and maximizes energy savings
  • Easy-to-use operation
  • Select a mode with the touch of a button
  • Easy-to-read LED display shows flow indication and power consumption
  • Simple plug connections
  • No wiring required

ALPHA 15-55 F/LC Cast Iron Circulator Pump

REVIEW SNAPSHOT®

by PowerReviews
Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump
 
5.0

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 6 customers

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Displaying reviews 1-6

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10/31/2011

(1 of 1 customers found this review helpful)

 
5.0

Smart Pump

By Mucky

from Canandaigua,NY

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

I love the readout and flexibility of this pump. Knowing the GPM and the power usage was very useful in setting up my wood boiler and gauging it's performance. I would like more information on the "adapt" setting that adjusts to system needs. What criteria does it use? The "adapt" setting tended to run too slow for my wood boiler. It likes a higher flow to keep the temperature more even in the boiler tank to prevent creasote formation so I'm using the a speed control setting.
The first pump they sent was defective but PEX supply was very good at sending a replacement.

Bottom Line Yes, I would recommend this to a friend

(1 of 1 customers found this review helpful)

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2/14/2011

(1 of 1 customers found this review helpful)

 
5.0

installs and works well

By Evan

from Prior Lake, MN

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

I have a small house with modest heat loss.
4 GPM max with <2' head - so this pump is a bit overkill.
I just got the system fully running this weekend. The Alpha runs like magic:

I had all 9 actuators closed and then opened one (.3GPM flow) and the pump saw the pressure drop and pumped against it properly.

With all actuators operating, it ramped up/down fine.

Bottom Line Yes, I would recommend this to a friend

(1 of 1 customers found this review helpful)

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2/8/2011

(1 of 1 customers found this review helpful)

 
5.0

Next generation circulator

By Mtn Maintenance

from Bartow, WV

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

Replaced most of the circulator pumps for customer with central furnace for four sites and many zones. Customer wanted to reduce electricity use and make system more efficient. Installs same as regular pump. Allows balancing of complicated hydronic design and/or conflicting heat demands with the push of a button.
Saves energy, balances heat flows, simple to use, customer is very happy. What's not to like?

Bottom Line Yes, I would recommend this to a friend

(1 of 1 customers found this review helpful)

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1/9/2011

(1 of 1 customers found this review helpful)

 
5.0

Brilliant!

By Mtn Maintainer

from Green Bank, West Virginia

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

Pump allows manual or automatic adjustment to changing conditions. Lets me fine tune complex systems (e.g. wood boilers) instantly without needing to swap out equipment. Have also reduced pump system electric use by more than 70%. Perfect for my off-grid hydronic customers. It's more expensive, but it's my main circulating pump from now on.

Bottom Line Yes, I would recommend this to a friend

(1 of 1 customers found this review helpful)

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8/10/2010
 
5.0

Best on the Market

By Proto Plumber

from Laguna Beach, CA

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

The company and the product are both as advertised. The pump came at the best price I found on the internet and with no delays or backorders. It was so easy to install, I did it myself. My only question has to do with the instructions pertaining to the settings on the pump. The booklet and the online instructions are a little unclear as to the setting to use to pump the hot water to the shower in the back of the house.

Bottom Line Yes, I would recommend this to a friend

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8/9/2010
 
5.0

Easy to install, easy to operate

By The Super

from New York, New York

Verified Buyer

Comments about Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump:

I am a super at a luxury coop on the upper east side of manhattan. One apartment on the ph floor was not getting sufficient cooling due to poor chill water circulation through the convector unit in the apartment. I've installed pumps before but they effected the apartments below (no control over pump speed etc.) so they were removed. This pump allows me to dial the circulation in (it has 6 settings) so as not to affect other units in the building. The plumber installed it in a few hours, and it plugs directly into a 110 volt wall outlet.

Bottom Line Yes, I would recommend this to a friend

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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.

7 Questions | 11 Answers
Displaying questions 1-7
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    I have bought this pump for a two-zone radiant system. I will buy zone valves and control switches for those but I am not sure whether I need a switch relay for this pump. Will it start and stop automatically when it senses a zone valve opens, or does it need to be controlled by a switch relay?

    Thanks
    Asked on 12/13/2011 by Henrik from United States

    2 answers

    • A:

      The thermostats operate the zone valves & the valve's end switch turns on the boiler. The Alpha doesn't need a connection to a relay, only power, it runs all the time, sensing pressure changes in the system and ramping up or down as needed(Auto Adapt). If you have a condensing boiler that requires a boiler loop and a heating loop (two pumps), do not use the alpha on the boiler loop, heating loop only.

      Answered on 2/10/2012 by Homer from Nevada

    • CUSTOMER CARE

      A:

      If you are zoning by zone valve, you do not need a switching relay. The zone valves, zone thermostats, and this pump will all wire into the zone valve control.

      Answered on 1/11/2012 by PexSupply Staff from NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    I would like to have a recirculating pump on my hot water heater for immediate hot water. What other parts would I need if I purchased this model?

    Does there need to be a part installed under a sink the furthest from the hot water heater? Anything else we need to know?
    Asked on 9/6/2011 by Shelia from USA

    3 answers

    • A:

      A BIG BIG NO! You must use a bronze or stainless steel pump for an open system and you don't need a variable speed pump. This has to be done right or you will get hot water out of the cold water tap in the kitchen sink. A Grundfos UP 15-18B5 would be a better choice or even a smaller pump, maybe. You can purchase a recirculation kit that has all the part needed and instructions.

      Answered on 2/10/2012 by Homer from Nevada

    • CUSTOMER CARE

      A:

      We would recommend that you use part 96433895.

      Answered on 9/7/2011 by PexSupply Staff from NY

    • VERIFIED BUYER

      A:

      This pump would be way overkill for this purpose. In fact you usually don't even need a pump. I ran a 3/8" line from the end of my hot water supply line to the bottom of the hot water tank and natural heat convection keeps the water in the line hot all the time. If you did chose to add a pump, one a quarter of the size of the Alpha would be more than adequate.

      Answered on 10/31/2011 by Mucky from Canandaigua,NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    I currently have a 22 year old hydronic heating system that is using a B&G Series 100 pump. (1) Will an Alpha be suitable as a replacement? I am going to be adding another zone for DHW so the pump will now be operational 12 months a year. (2) Most plumbing diagrams show the pump on the supply end of the circuit, mine is currently mounted to a flage off the boiler on the return side..any issues with this configuration? There is plently of room for mounting in the right configuration. I also intend to leave the rest of the system set up as is...the t-stats operate the zone valves, end switches (wired parallel) turn on the boiler which energizes the pump. (3) This means that with each cycle the Alpha will de-energize till the next cycle...any issues with this set up? (4) The current piping is 1-1/4", is this just a matter of getting the right sized flange to make the connections?
    Thanks for the valuable help.
    Asked on 5/23/2011 by Tony from Morris County, NJ

    2 answers

    • A:

      JUST MAKE SURE THAT THE EXPANSION TANK CONNECTION TO THE SYSTEM IS ABOUT 12 PIPE DIAMETERS OF STRAIGHT PIPE BEFORE THE PUMP INTAKE FLANGE. Supply or Return location ok. Just plug the Alpha into an outlet and not into the Aquastat relay that turned the old B&G on and off. The Alpha runs all the time. It pays for itself in electricity savings, too.

      Answered on 2/10/2012 by Homer from Nevada

    • CUSTOMER CARE

      A:

      You can use this pump to replace the Series 100 pump. You can install the pump on the return side.

      Answered on 5/24/2011 by PexSupply Staff from NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    does this pump contain an internal check valve? if so, could it be removed?
    Asked on 3/15/2011 by dusto

    1 answer

    • CUSTOMER CARE

      A:

      It does, and it can be removed/replaced if necessary.

      Answered on 3/16/2011 by PexSupply Staff from NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    is the 1-1/4" mating flange required compatible with an existing Armstrong Astro30 1-1/4"?
    Asked on 2/12/2011 by sr from st paul,mn

    1 answer

    • CUSTOMER CARE

      A:

      Yes, they are.

      Answered on 2/14/2011 by PexSupply Staff from NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    what is the mateing flange part number for 1 1/4" npt
    Asked on 1/13/2011 by John from placitas NM

    1 answer

    • CUSTOMER CARE

      A:

      It is part number 519603.

      Answered on 1/17/2011 by PexSupply Staff from NY
  • Grundfos ALPHA 15-55 F/LC Cast Iron Circulator Pump

    Q:

    what is the flange size on the alpha pump? 1/2"?
    Asked on 8/28/2010 by wedeb from asheville

    1 answer

    • CUSTOMER CARE

      A:

      The size flange needed depends on the specific application. For example, if you were connecting your flange to a 3/4" pipe, a 3/4" iron pump flange would be needed.

      Answered on 8/30/2010 by PexSupply Staff from NY
Displaying questions 1-7

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