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Old 01-31-2016, 12:59 AM   #1
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Fan Delay Relay for Coleman Mach

Does anyone have link to purchase a fan delay relay and also instructions on installation wiring. (I see mention of it but haven't been successful in a search) Also can the relay control the condenser and evaporator fans? Thanks in advance.
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Old 01-31-2016, 04:50 AM   #2
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Too Tall, Check out Granger. They will have a delay. You can delay the evap fan on start up. More then likely your going to have a double shafted motor in the unit. You only need to delay it long enough to get your compressor out of the start winding, we are talking seconds here not minutes. You would be better off to install a hard start cap on the compressor to pop it out of the start. If that is what your trying to do. That's where your amps will go up the most. The fan is not much at all. Just my opinion.
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Old 01-31-2016, 05:57 AM   #3
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Here is one thread....

air conditioner for generator mod
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Old 01-31-2016, 08:48 AM   #4
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That's it✌️


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Old 01-31-2016, 08:52 AM   #5
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Quote:
Originally Posted by gljurczyk View Post
Too Tall, Check out Granger. They will have a delay. You can delay the evap fan on start up. More then likely your going to have a double shafted motor in the unit. You only need to delay it long enough to get your compressor out of the start winding, we are talking seconds here not minutes. You would be better off to install a hard start cap on the compressor to pop it out of the start. If that is what your trying to do. That's where your amps will go up the most. The fan is not much at all. Just my opinion.
Thanks, I'd like to install the hard start also but delay the fan motor until the compressor cranks. I think I can save about 4 to 5 amps startup load if I wait and start the fan after the compressor. Double shaft, yes I think you are right on that, thanks.
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Old 01-31-2016, 09:34 AM   #6
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A/c fan draws 6 amps on a cool day


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Old 01-31-2016, 10:29 AM   #7
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Anyone have a schematic of how the time delay is wired using 12v? I'm think I would wire it to the low fan only. What's the 120 v wire what it says to cut? Also, the spec say, 18 to 120v. Will it work with 12? Thanks.
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Old 01-31-2016, 10:34 AM   #8
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Fan Delay Relay for Coleman Mach

That's what you delay is the fan.
Open up your thermostat and see which wire is your fan power then go to a/c unit and install the delay in that wire.

I wouldn't just delay the low.

If that's truly what you want to do then again open your thermostat and see what your low fan speed wire is, then go to your a/c unit and delay that wire.

Problem is you always have to have fan on low when starting a/c


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Old 01-31-2016, 11:19 AM   #9
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Yea, your right, hi and low would be better to delay. Wouldn't you need two of these delays to do both high and low? One for each wire?
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Old 01-31-2016, 11:24 AM   #10
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Fan Delay Relay for Coleman Mach

Quote:
Originally Posted by Too Tall View Post
Yea, your right, hi and low would be better to delay. Wouldn't you need two of these delays to do both high and low? One for each wire?

No, only one delay is needed.
In your thermostat is a high and fan wire.
The fan wire is the one you want, mine happened to be red.



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