Question about Honeywell Center, Fan Control - R8285A1048

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Honeywell fan center

Overheating relay

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Wiring schematic for an old honeywell R8325C1020-8514 fan center relay..


Without a picture Mike, I'm not sure this answer is absolutely correct but.... most of the old fan centers had a multitap transformer so different colored wires were provided to connect to 110v, 208v or 230v. If thats what it is, white was common to the black for 110v. White was common to orange for 208v and white was common to red for 230v.

If you have red and black hanging loose, possibly the center is connected to orange and white with 208v power supply. Of course many times, the orange and red were interchanged with 208v OR 230v.

Another point is that virtually all residential gas furnaces operate on 110v and 208/230v operated electric furnace.

As stated above, without a picture this is just a reasonably educated guess....Conventional furnaces less than 15 years old typically no longer have fan centers.

Nov 29, 2015 | Honeywell Heating & Cooling

1 Answer

NEED TO WIRE A OIL FURNACE FAN FOR LOW SPEED IN HEAT AND HIGH SPEED IN COOL


Okay, I've got an answer for you.

If you get a Fan Control Relay that is DPDT, I think you can wire the Low Speed of a two-speed motor to the first N.O. contact, for Heat.

When the Relay trips, the N.O. contact will close, and the fan will run on low.

If it's a two-speed fan, these fans have two windings, the first for low, the second for medium, and both for High.

Wire both windings to the N.C. contact on the second half of the relay.

That way when the temperature drops below your setpoint, both fan windings will be energized and the fan will go nuts.

Of course, this means the fan will NEVER shut off.

And I still don't know why you need high speed in the Cool setting, when your thermostat isn't kicking the Relay.

Oct 10, 2012 | Honeywell R8285B1038 40 VA Fan Center with...

1 Answer

Where is the fan relay on a 96 cadillac concours


It is in the under fuse and relay center, more info is in the owner's manual. You can download that here.

Aug 24, 2012 | Cars & Trucks

1 Answer

Need to connect a universal fan relay with a transformer


Hi,
I hope you are good at electric becaue you are biting off a chunk here...

Check out these diagrams they are for Honeywell but all the fan centers are pretty much universal...

http://customer.honeywell.com/techlit/pdf/60-0000s/60-2023.pdf

or this one...

http://customer.honeywell.com/techlit/pdf/60-0000s/60-2171.pdf

one of those should be pretty much like yours...

heatman101

May 06, 2010 | Carrier 38CKC036 Air Conditioner

1 Answer

Honeywell Chronotherm iv fan keeps running even when heat and cool turned off. How do I turn it off?


Assuming you have the fan switch of your thermostat in AUTO, it sounds like a stuck Fan Relay. If the fan relay is stuck, your fan will continue to run as long as there is line voltage being fed to your unit. This relay could be an independent component or it could be an integral part of your control board. Have an experienced, qualified service technician check it out.

Mar 19, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I WANT TO HOOK IT UP TO A FAN,BUT ARE NOT SURE WHICH CONNECTIONS TO ATTACH TO.


In order to hook this up to the fan on your furnace, you will need to either have or install a Fan center @ the furnace. (Unless it is gas, and has a circuit board that will simplify the process) All this is, is a transformer, a relay, and a set (or two) of NO and NC contacts. You will need to run 3 wires from the thermostat back to the furnace, if you do not have them already. If you have a gas furnace with a circuit board then all you have to do is connect the three wires from the thermostat to the board. (R to R; W to W; G to G. If you are using an older furnace, or a oil fired appliance, power should go out of the transformer (secondary side) to the thermostat on R. It should then come off W and another wire off G back to the furnace. Connect to the appriately marked terminals on the fan center. Hope this helps

Nov 19, 2009 | Honeywell International Honeywell&...

2 Answers

When I set tstat to call for a/c, compressor outside comes on. Blower on furnace does not. When I manually rotate fan limit switch on furnace wall, blower comes on, blows cold air, and then goes off when...


blower relay bad or no call from stat on green wire to run fan jump red on stat to green if fan comes on stat bad if no look for fan relay turning the well switch bypasses the relay hope this helps

May 24, 2009 | Heating & Cooling

2 Answers

Where is location of cooling fan relay?


Under the hood on the drivers side, just forward of the shock tower, you will see what is called an "under hood fuse center". On the cover you can see the various fuses and relays that are located in the fuse center.
One of those relays is the coolant fan relay. Remove the top cover of the fuse center to gain access to the relay.
Hope this answers your question, good luck.
Regards,

May 02, 2009 | 2002 Pontiac Sunfire

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