FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset Zoom
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FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset

SKU:SR501-OR-4

Brand: Taco

Taco
Qty Price
$159.95
/ each
$465.45 / box (3 units x $155.15)
In Stock! Ships in 24-48 Hours
(24 Available)
3

Specs

Application: Zoning
Boiler Reset
Zones:
?
1
Amperage:
?
12
Power Supply: 120 VAC

Description for Taco SR501-OR-4

The FuelMizer is a microprocessor-based control designed to regulate the supply water temperature of a single boiler, based on the outdoor temperature. The FuelMizer is a boiler reset control and switching relay in one unit; it is ideal for retrofit application, but may also be used in new installations as well.

Features

  • Full outdoor boiler reset control
  • Can control system or zone valve circulator
  • Over-ride of outdoor reset when DHW tank is calling
  • Easy to install and set; will not affect boiler's warranty
  • Front mounted LED lights for full diagnostic information
  • Ideal for retrofit applications of just about any hot water boiler
  • Typical energy savings is about 14% with some customers experiencing up to 30%

FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset

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by PowerReviews
TacoFuelMizer SR501-OR-4 Switching Relay with Outdoor Reset
 
4.0

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

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    (3)

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100%

of respondents would recommend this to a friend.

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        Reviewed by 3 customers

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        (0 of 1 customers found this review helpful)

         
        4.0

        Requires a little tweeking

        By Just Keep Tweeking

        from Muskegon,mi

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset:

              Hello: I installed the Fuelmiser on a Weil-Mclain Model gv5 140,000 btu gas fired boiler with three zone valves and one circulator Pump. The stock boiler had a temperature differential of 20 degees at the boilers gauge which is measuring at the water. The fuelmizer has two settings 20 degree and a 10 degree Differential. The best I could get on the 10 degree differential setting is 25 degrees at the boilers gauge I have the sensor straped on to copper pipe and I moved to different locations. I think the engineers didnt take in considertion the heat transfer thru the pipe.I think the senor would work best in a submersion well. The sensor work best wired with 14 gauge wire in conduit. (Read Tekmar sensor instructions). The best differential I got with 20 gauge bell wire was 30/35 degrees at the boiler gauge. The differential will slow your heat recovery.The unit is well made and easy to install and will save you aprox.14%. I plan on change the sensor to a submersion well. Pexsupply has great service they reply to Emails,shipfast. Taco Service??

              • Was this a gift?:
              • No
               
              4.0

              Not for the total amature

              By SteveU

              from Palo Alto, CA

              Verified Buyer

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                    Comments about FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset:

                    You need to be comfortable with line voltage electrical work as this connects to the AC power and circulator pump as well as Low voltage thermostat.

                    Note: The basic internal wiring is for 2/3W Heating Stats. I suggest that the Heating circuit of a Heating/Cooling system leads be extended TO this device.
                    I was hoping for better fuel saving and less overshoot, on a really old, 1947 radient system. System lag due to a thick slab and heat losses makes recovery from a nighttime setback really slow. I would not reccommend this solution for this kind of system, payback will be out many years.

                    • Was this a gift?:
                    • No
                     
                    4.0

                    Installation was a breeze

                    By jpipx

                    from Putnam Valley, New York

                    Verified Buyer

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                      Cons

                        Best Uses

                          Comments about FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset:

                          I just installed this device, and it has been performing exactly as described. TACO Tech support was very responsive when asked a question about the aquastat settings, I have no doubt this product will be saving me money in the upcoming year and paying for itself in no time.

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                          • FuelMizer SR501-OR-4 Switching Relay with Outdoor Reset

                            Q:

                            does this unit include the outdoor sensor and supply sensor?
                            Asked on 10/5/2013 by jp from denver co

                            1 answer

                            • CUSTOMER CARE

                              A:

                              Yes, it does.

                              Answered on 10/7/2013 by PexSupply Staff from NY
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