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Location: 185 Price Parkway, Farmingdale, NY 11735
Hours: 8:00AM - 7:00PM, Mon - Fri.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products used in any system providing water for human
consumption (drinking or cooking) to meet low-lead standards.
Please check the box below to confirm you are aware of that this item is for non-potable water applications only.
This product will NOT be used in the installation or repair of a potable water (human consumption) application.
You must agree to this statement in order to purchase this product.
Do not use this item for any installation or repair of potable water applications.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking).
This item is for non-potable (non-human consumption) water applications only.
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Zones are the number of areas that you want to control independently of each other. If two rooms can be controlled together, they can be one zone; if they need to be controlled separately, they should be separate zones.
Amperage, or amps, refers to the amount of electricity flowing through the wires.
Voltage, or volts, is a measurement of the difference between two electric fields (in heating terms, the difference between the Earth's electrical field and the electricity running through your wires).
The Taco SR504-4 Switching Relay is the best choice for all your zoning needs, with advanced PowerPort Cards, external diagnostic lights, switchable priority and contractor friendly PC board layouts. Combined with the time proven reliability of the 00 family of circulators and thermostats, total system integrating is achieved. External indicator lights provide instant diagnostic feedback, making a snap of service calls or new installation start-ups.
(based on 73 reviews)
of respondents would recommend this to a friend.
Reviewed by 73 customers
Displaying reviews 1-10
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from Carmel, NY
Comments about 1 Zone Switching Relay:
would have liked to have three knockouts on the bottom since I replaced a Honeywell R845 which had 3 knockouts on the bottom .I had to rework 1 wire to go in thru the top. Other than that, It was great.
Bottom Line Yes, I would recommend this to a friend
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This product fits my needs.
from Amboy Illinois
It dose the job, temperature controll for one zone, in workshop floor heating
Taco Switching relay
from SE Wyoming
Replaced 2 zone switching relay that had gone bad after 10 years, what's to say Taco is one of the gold standards of the industry.
product was as advertised
bought this relay from supply house works grate sales associates were very helpful in leading me in the right direction for my in floor heat project
taco 4 zone switching relay
from Des Plaines IL
Comments about 4 Zone Switching Relay:
Easy setup, Used to control underfloor radiant heatin combination with 3 zone baseboard radiator setup.
By Frankie five aces
from boston ,ma
Easy to install
Works as advertised
from Pagosa Springs, CO
Needed to control a Taco circulating pump for a small radiant floor system. I have 1 zone for heating the North facing roof for snow removal, and the other zone for heating the Master bathroom floor. I needed to control only the floor heat and this single zone relay works great.
from hammond, in
included bus jumper eliminates one wire, which makes for a neater wire bundle.
Taco-Almost as great as Supply House!
from Thornton, NH
Comments about 6 Zone Switching Relay:
Taco switching relays are easy to use and install. Very versatile and expandable. I am using one for the main heating loops and DHW, and a second to control a glycol based, slab radiant system. Up and running with no issues!
This is a redesigned SR501 relay. There are no small fuses. Overall it appears to be higher quality. I hope that it proves to be more reliable than TACO's older version. The older ones were problematic on the low voltage side. (They seemed to overheat).
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At SupplyHouse.com, our goal is to bring you the highest quality plumbing, heating and HVAC supplies at competitive prices. Our product catalog includes PEX Plumbing Supplies, Radiant Heat Supplies, VisionPro Honeywell Thermostats, Taco pumps and mini-split air conditioners. If there are items you are looking for but can't find on our website, please contact our Customer Service Representatives & we will do our best to find what you need.
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