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Pros & Cons
Pros
The supco 90293 spdt relay has two pair of controlled contactors. I have my air handler configured to run every now and then via a separate control box.
It works fine, but it is buzzy sometimes. Works great, no noise. Took a little know how, but was a good diy project.
The 1/4 * terminals and six mounting holes make installation easy. Though terminal 4 & 6 are tied together internally.
Three wire, 18-gauge thermostat cable was fished through the wall. By wiring it in with the 24vac transformer in the furnace, my nest now always has power, even when furnace is calling for heat. Worked like a champ for my nest with humidifier setup.
Cons
Inline blower struggles to start. Like other reviews, this unit buzzes loudly when in operation. The relay seems to have loosed up internally.
Highlights
Quality
Easy to install and fixed the problem with my garage heater
I use this to split a switch on a photo sensor cell motion sensor light under the carport and it works great
I ordered this fan relay to fix an annoying house fan going on and off when the thermostat didn't call for heat.
The only issue i have is that one of the two relays i purchased has failed and doesn't switch reliably.
Price
Of course you cannot return electronics, so good bye money.
The other 2 cost me $300 in service fees to figure out that the new relays were the problem.
Great price and it works as intended.
Plus was cheap and grainger is retarded overpriced
Competitiveness
I bought 3 different brands of fan relays.
I ended up drilling holes by myself, which is not a big deal, but it would be better if i knew upfront.
Overview
- How are reviewers describing this item?
great, good and open. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has discovered that over 90% high quality reviews are present.
- This product had a total of 468 reviews as of our last analysis date on Oct 23 2024.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Installed it on my hvac system three months ago
Posted by a reviewer on Amazon
I have an old williams milivolt wall heater that i just absolutely love but it just has the old style on off mercury type of switch and converted it to a nest gen 2 in october
Posted by a reviewer on Amazon
There is an audible click and when the relay switches on but ive kind of gotten to like that because i know that might my heater is engaged
Posted by a reviewer on Amazon
Granted mine is mounted in the wall but i could not hear it chatter when i tested it before i put it in there
Posted by a reviewer on Amazon
Works fine once i figured it out
Posted by a reviewer on Amazon
Why it didn’t come with clear directions requiring me to mess around for ages on google is beyond me
Posted by a reviewer on Amazon
The supco 90293 spdt relay has two pair of controlled contactors i
Posted by a reviewer on Amazon
Pin pair 2 4 are normally closed pin pair 2 5 are normally open
Review Count History
Price History
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