My furnace relay does not have "auxilliary" contacts. Can I connect the 500 to the fan contacts so the 500 goes on when the fan goes on?
627743
No, the fan motor is 120VAC and the humidifier controller and water valve are 24VAC. You will damage them. Without knowing exactly what you have it is hard to tell you how to hook this up. The 500 control box has terminals that will match your home thermostat terminals and your furnace terminals. Terminal R-is red wire, Terminal W is a white wire. Terminal G is a green wire. And terminal Y is a yellow wire. Match the terminals from your thermostat or furnace with your Aprilaire controller. the wire can be purchased on line or from your local building supply like Home Depot. Both the Aprilaire humidifier and the controller come with wiring instructions. However if you have a late model high efficiency furnace it will have a humidity terminal marked HUM. If this is the case connect the Aprilaire controller G terminal to the humidity terminal. No other wires should be on the Aprilaire controller G terminal or the HUM terminal of the furnace. If you connect it incorrectly you do run the risk of damaging the controller, your furnace or both. I have 30 years experience in control circuits that helped me hook this up. Better to ask a professional for help if you have any confusion. Followup after I looked at my furnace connections. I made one mistake for the HUM terminal on high efficiency furnaces. You need to connect W terminal of humidity controller to HUM of furnace not G. FYI on furnace connections R is power out to thermostat and controller Y is demand for cooling input to furnace W is demand for heat input to furnace G is run fan with no demand or heat or cooling input to furnace C is return for power and is required for humidity controller to provide power return path. It is also used on high end thermostats that require power. Normal thermostat wire is 4 conductor for newer thermostats you may need the C connection. Home Depot has 5 conductor wire.
627744
Most gas furnaces have control wiring that is 24V AC, and the water valve on the humidifier takes the same 24V AC. I suggest hooking the humidifier in parallel with the gas valve. That way when the gas turns on the humidifier will operate. With it connected in parallel with the gas valve the humidifier will not operate when you are in Air Conditioning mode. Most people forget to turn off the humidifier in the summer and it runs when it should not. Also, most furnaces have one fan speed for winter operation, and one for summer operation. If you can figure out the relay for winter operation, you could hook in the humidifier there on the 24V AC relay side, but that may be difficult to figure out. Most gas furnaces have control wiring that is 24V AC, and the water valve on the humidifier takes the same 24V AC. I suggest hooking the humidifier in parallel with the gas valve. That way when the gas turns on the humidifier will operate. With it connected in parallel with the gas valve the humidifier will not operate when you are in Air Conditioning mode. Most people forget to turn off the humidifier in the summer and it runs when it should not. Also, most furnaces have one fan speed for winter operation, and one for summer operation. If you can figure out the relay for winter operation,... » Read More Most gas furnaces have control wiring that is 24V AC, and the water valve on the humidifier takes the same 24V AC. I suggest hooking the humidifier in parallel with the gas valve. That way when the gas turns on the humidifier will operate. With it connected in parallel with the gas valve the humidifier will not operate when you are in Air Conditioning mode. Most people forget to turn off the humidifier in the summer and it runs when it should not. Also, most furnaces have one fan speed for winter operation, and one for summer operation. If you can figure out the relay for winter operation, you could hook in the humidifier there on the 24V AC relay side, but that may be difficult to figure out. « Show Less
627745
yes. you only want humidifier on when fan is funning. you will need a 12 v transformer.
335162
The thermostat will certainly work, but you will not be able to manually turn on the fan function on the furnace. That is, all of the automatic functions of the furnace including the fan will work fine exactly as they have with the old round thermostat. If your furnace is not Hot Air you'll need someone else and his/her comment for advice.
1958997
I had the same 2 wires on my old thermostat, and I found the answer in one of the responses to a review that was already on the site, by A. Pico: "I was in the same situation: two unmarked wires that when connected turn the furnace on. Simple. However, in my case, the trick was to connect them to positions R and W." Mine worked when I connected them to R and W also; does not matter which goes to which, and I did not take off any jumpers.
1346761
You can hook it directly up to your wiring. No relay necessary. I use these for bow fishing and hook quite a few of them directly to the battery.
1655144
Yes. The first one I had came with an attic fan. The function as the temp rises just close the circuit, just like any other switch. A great simple device.
686031
You can wire the fan either way. It just depends on what you have for the electrical connection now. The connecting wire is not included with the fan. I used the one that was already installed with my old fan. It has a normal 3 prong plug. Since the plug and wire don't move once the fan is installed, the old wire was like new.
1122348
There is an option to run the fan where it is always on. There is an "auto" function when it only runs when the furnace/ac is running. And there is a function where it can be set to run randomly about 35% of the time whether the furnace/ac is running or not.
1298117
The wiring on the fan motor (in the down rod) to the wiring hub is rather long. The wires that go to the power leads are short, therefore you need to bring your power (house power) close in order to make the electrical connection. Hope this helps.
1195746
A relay is included but I didnt need it. Check your furnace set up...chances are you have a 24v HUM hookup on your furnace.
1104576
When the fan was installed the electrician mentioned a lot of options about how it could be wired. We went the simplest route. We do nothave a timer feature. It is possible that was one of the options.
1413252
It has an independent switch not coordinated with the furnace fan. But if it were to run without the furnace fan, it would only harmlessly help circulate air into the room. I bought a $16 remote switch (ceiling fan dept at Lowe's), and put it in-line with the power to the booster through my attic. I leave the booster fan switch in the "on" position and now I turn mine on and off with a remote (usually at bedtime).
1233120
No. It connects directly to the fan motor wire. You do need a wire that's separate from the lighting, and a fan that does not have a built in controller (or one you can bypass). In other words, if you now have two separate wall switches for the fan and light, this is a direct replacement for the fan switch.
1172424
yup but you need to power it from another source if you only got two wire , depending on the furnace you may have 4 . i had the battery powered stats that did fine on a two wire but wifi needs more power so i got a transformer to run the stat . Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse my furnace had no point to put a third wire for common power "c" terminal so i went and wired stat to the aux supply plugged it in a remote outlet and ran another set wires to stat on wall all set and running fine if you get this set up the tech line at h-well can give you the terminals to mount your 2 new wires the ins booklet had no diagram to run a aux power source c n rc for the new power and remove jumper r n y for the furnace wire pair call to make sure very helpfull Coleman Cable 09632 CL2 Bulk Thermostat Cable, 18-Gauge 2-Conductor 100-Feet used
779796
Just connect a wire from the positive side of the fan motor to one lead of your indicator light. Connect the second lead from the light to ground. I used a red LED lamp purchased from Radio Shack and mounted it to the fan's On/Off switch plate. Remember to connect the wire to the fan motor itself, not to the positive side of the thermostatic switch. Connecting to the thermo-switch will only tell you there is power in the circuit, not whether or not the fan itself is running. I think I used 18 or 20-gauge wire for my installation as the LED draws very little current. Good luck and Merry Christmas.
1066134
You can get it direct from hunter as if you were ordering a replacement part. The number should be on their site : www.hunterfan.com. If you intend to use it on a different fan, you should know that it connects to the Cortland via a 3 prong connection.
428581
No, I just wired it to the thermostat that was wired directly to the breaker. Just like your furnace thermostat.
689340
I would like to do nearly the same thing. I would like to replace the wall switch with an automated relay switch (on/off)-- then control the fan with a handheld remote. I am trying to find out if this will work. Has anybody tried this?