Type: Posts; User: CoolShowers
X2 I hate hard to reach caps...
I'm ignorant of this particular furnace, but is it HSI? That could be bad if it doesn't light due to colder ambient temps.
Call Fujitsu directly: (866) 952-8324
It's their US office in NJ. They like knowing when stuff's wrong with their units. Crazy Asian perfectionists. ;)
Our instructor in school posed a similar situation with us and what we could do to help customers who are going from hot air to heat pump. Lowering fan speed and adding a humidifier were two strong...
I made that mistake when in school on a test. Never again! ;)
This bwd ^
40135 / 3.413 / 240 = 49a
Find your resistance by taking 240v / 49a = 4.9 ohms. Now take 230v / 4.9 = 47a. 230 * 47 * 3.413 = 36,894 btu
Subcooling, but then it's a sensible heat loss, not latent. ;)
What's airflow like?
First, you only posted a couple hours ago; have some patience. Second, if the customer doesn't care and you've warned them of possible complications/setbacks, then that's their problem if something...
Even if you've been out for two years, you should still know the answer to that question. So it's not a bash, rather a "you should know better, but since you don't, get a pro."
Also, try shutting the unit off, take the wire off the board that leads to the contactor, restore power, and check voltage from board common or Y to the power out if the board. If you have 24v, it...
I once had a Lennox board that did not allow 24v to the contactor if it sensed a short in the coil. You may have something similar. Try replacing the contactor and see if it fires.
To reference another post, when's the last time you changed the oil? :-P
Hourly wage anytime over commission IMO. I'd rather have that steady flow instead of bursts here and there. It'd make my wife nuts trying to do the budget. ;)
I've not seen it done in the field, but whenever I have my own someday I plan on changing it often. The moisture from the air in the system still saturates the oil and diminishes efficiency. Plus...
Higher SEER rated units don't follow the ambient +30 rule I've found. When I charge units for residential developments owned by a certain company, I'll do ambient +15 and see what my suction pressure...
Model #? Can't help if we have no numbers or other info.
I had a good one today. Call is no ac and that's it's leaking and spraying something. I'm thinking condensate issue of some sort, so off I go.
When I get there, the customer tells me he found his...
We did one on a RTU but cut the copper at the valve side using a saw and then unsweated the remaining copper. :whistle:
Damn 1" copper can be a PITA for brazing, especially with a rev valve!
They make perfect sense.... to someone....maybe.... :whistle:
Thankfully folks have been very nice during this heat wave when I've gone to look at systems. No horror stories....yet.
July of 81 or 2002 based on http://www.buildingcenter.org/york
I'd think 2.5 tons with the "30" there.
The call center said it wasn't an emergency? That's dumb.