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IMHO a megohm scale on a DMM is not very useful. You need a megger (megohmmeter) that is going to put out at least 500V to test motor windings. I don'r know how many times I have had a grounded...

Tell the Ass't manager to turn off the lights. That should fix it:rolleyes:

check out the iom on this web site. It says the sensor is in right location. You may have to cut a jumper, depending on your application. Good Luck
http://www.climatemaster.com/index/res_ioms

Mini split is the way to go if you want quiet. PTAC's & PTHP's can be noisy.

http://www.rbiwaterheaters.com/index.asp
Go to Products and choose which Futura you want

Wire it up this way and you should have no problem:
Red=24V Hot
White=heat
Yellow=compressor
Green=fan
Orange= reversing valve if energized in cool mode
Black = reversing valve if energized in...

Grady White is right. The cap helps the motor develop torque. If the cap is going bad, then the motor will draw more current to get the required torque.

Anybody who doesn't use a cordless drill,except for a few screws, is looking for trouble. Wearing splints or braces or going for physical therapy for "tennis elbow" when you never played tennis is...

Reset the power to the AHU. There maybe a lockout relay in the fan start circuit.

Yes, the liquid line solenoid is probably OK. A scroll compressor will not hold back the high side from the low side on shut down like a recip will. That is why you need a check valve in the...

Just did a Google on this. Check out this link about pump down and scrolls.
http://www.hvacrinfo.com/scroll_trouble.htm

What kind of compressor is it? If it's a recip, you may have bad valves or head gasket is cracked allowing high side to leak back into suction on shut down. Try closing off suction service valve,...

I teach the 2nd year courses, only full time. If you have access to computers, check out the Clarity Co, HVACR training programs. If you teach Hydronics, then Modern Hydronic Heating by John...

Find the cross section area of the duct. Multiply the fpm reading of your instrument by the square foot area of the duct to get cfm. Make sure you convert the duct area from square inches to square...

U.A. all the way! Good benefits, good retirement. Life is good!

It might not hurt the compressor, but it sure won't help it any. Why throw stuff at it when it is not helpful but may be detrimental. K.I.S.S. (Keep It Simple, Stupid)

Not necessary to have filter drier in discharge line. A filter drier absorbs moisture best at lower temperatures so it will not be effective at higher discharge gas temperatures.

Most large name companies will take on any body's equipment to service. They are no different than your present company. I have worked for a large multi-national that would have you working on a...

Here's a question from a NATE exam review book:
"Which of the following compressors is most "liquid slug" tolerable?"

Reciprocating
Scroll
Compliant scroll
Rotary

The author says "B"...

Is the great room isolated from the rest of the house? I would leave the door(s) open to the great room and bedrooms open for a couple of days to see if makes any difference. If you notice a...