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
$135.95
/ each
$395.85 / box (3 units x $131.95)
In Stock! Ships in 24-48 Hours
(60 Available)
5

Resources

Specs

Application: Zoning
Boiler Reset
Zones:
?
1
Amperage:
?
12.0
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

REVIEW SNAPSHOT®

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

(based on 3 reviews)

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    (3)

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    • Was this a gift?:
    • No (3)

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

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

(1 of 1 customers found this review helpful)

 
4.0

Not for the total amature

By SteveU

from Palo Alto, CA

Verified Buyer

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

(1 of 1 customers found this review helpful)

 
4.0

Installation was a breeze

By jpipx

from Putnam Valley, New York

Verified Buyer

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.

  • Was this a gift?:
  • No

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1 Question | 1 Answer
Displaying question 1
  • 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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