Is the vent fan in the basement adjustable? Either fan speed or temp control. We r dry camping and this stinken fan keeps blowing.
85F outside, bay door open,. 92F at the heat sensor box.
Very tempted to temp. Disable the fan. Guess I could install a switch.
Thanx. 😃
Is this the one in the bay with the electronics and HWH controls? I would hesitate to disable it lest those components get over temperature and have other issues.
Yeah - I know. The sound is driving me crazy and it's burning power. Argh.
My guess it's a bad sensor.
Sensor temp is 83F. Should be off, I would think.
I'd look at the temp sensor, seems like 95° is pretty early for it to come on. Maybe a call to FT ?
Maybe burning 3amps?
Any one know that p/n for that sensor?
Couldn't stand it anymore.
Pulled off the cover plate and on the back of the sensor there is a dial - temps on the dial that can be adjusted from 90F to 120F. Mine was set at 95. So........ should start when temp in bay gets to 95F. Fan off now after I reconnected it. We shall see.
BTW -. Trimetric shows fan was using 4 amps.
It's quiet now,.....😁
I'll take a better look at it tomorrow. Maybe I can blast it with air and get some dirt out of it. Maybe Corrosion X?
Any line voltage cooling only thermostat should do the trick at 3 amps. Exhaust fans are NOT component cooling fans unless properly ducted and sealed. they only exhaust whatever air is about 2" in front of the intake of fan because air is stupid. Don't believe me, try the match "trick" pretty easy to blow out a match or candle 4" from your lips, Now try to suck out the flame at 2" from your lips. As far as "sensitive" electronic components many are rated at 105 F or more. Think of your laptop that you just grabbed out of your 130 F. Car or the Vehicles CPU. Dell has a server that is rated and Warrantied for about 30 hours per year when the cold air intake side of unit the reaches 113 F. Kinda off topic but relavent
Good point OFF.
Our Prosine 2.5 and the AquaHot is also in that bay behind a panel. Prosine says operating temp is 0 to 50 deg C. That's 32 to 122F.
I reset to 95 - will try to clean it out tomorrow.
Can you put a wireless digital thermometer inside the space to monitor the temperature. Then you can compare it to your sensor temp setting.
John M
Scott, following on John, if I remember your coach you have the accutemp. Tape a remote next to the area and set the monitor/alarm.
Upon further review, the sensor starts the vent fan fine. It just doesn't know how to turn off. Will call FT tomorrow and get a replacement. In the meantime will disconnect power when temp gets below 90ish.
I think you can turn it off temporarily by holding an ice cube against it.
Hey Dick -
Haven't tried that. ;D
Per my info, it's probably a White-Rodgers switch, likely this one WHITE-RODGERS Switch,Fan Control - 4E116|3F05-1 - Grainger (https://www.grainger.com/product/WHITE-RODGERS-Switch-4E116)
Seems to have been discontinued, but any HVAC supplier should be able to cross-reference.
Thanx Michelle -
I'll track it down.
Hope you guys r OK. 😃
Zoro has it
Value Brand Adjustable Fan Switch, 90-130 6UEE1 | Zoro.com (https://www.zoro.com/value-brand-adjustable-fan-switch-90-130-6uee1/i/G3923787/)
Craneman -
Nice find. ^.^d
Appears to have a 20 degree dead band. Check out a normal cheapo home cooling thermostat for a 2-3 degree deadband.
Dead band?????
I guess I still don't understand - Dead Band. Seems if you set it to go on at 95F it just goes on???? And goes off when the temp is below 95F. No?
If you set it for 90 it will go turn off at 70 set for 110 it will turn off at 90 20 deg. spread. Read the specs on the link. If you wanted it to turn off at 95 you would set it for 115.
WOW!
Scott:
Consider this adjustable thermostat (https://www.zoro.com/columbus-electric-line-volt-mechanical-tstat-120-to-277vac-etd-5s-6s/i/G1179403/), this one was installed in some Foretravels to control the basement cooling fan. The SPDT relay can be wired to either open or close on temperature rise. You will want close on rise for a cooling fan.
Lots of line voltage cooling only tstats available out there, Honeywell makes a ton of different of flavors that are very rugged and very dependable for commercial applications. Pick and choose your on & off points. Zoro may well be a good source as they are rumored to be the online division of the industrial supplier Graingers at discounted prices. Adjustable temps and deadband prevent short cycling and premature fan motor failure, or the equipment you are trying to protect. So check the specifications of the item you are "cooling" Dell fresh air computer servers are happy with the "cold aisle" intake temps of 95 and are Warrantied to 113 intake temps for a certain number of hours. So these server rooms do not have to have expensive dedicated HVAC units. I am in the HVAC industry and I sell value, with many repeat
Customers.