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Here is a page from Liebert Corperation on the use of economizers.
As Liebert tech pointed out must likely it will not work properly. Unless your using the fluid side economizer, using free cooling...

TOTALLY untrue! You don't learn much about installs until you service the equipment. How many times have you not been able to get a filter in and out of the unit? The refrigerant lines were ran in...

Had 40 Plus hrs every week myself. Got lucky during the last heat wave. Went away on vacation for two weeks came back and had to go out on paid medical leave for four weeks for elbow surgery. Best...

No they were bought out by a Maryland Company ATS located in Frederick, MD.

The company I'm with now installs anything. I've started up both Lieberts and the newer Stulz units (alot better then...

Its done all the time!

Size the piping for the dry cooler and the pumps. This way when the additional equipment is added there is no adidtional changes required. It works the same if you have...

I really don't belive the percentage of techs claimming to be putting screws back in; never less the then some as claimed.
Why do I find so many panels just laying on the roof then? :confused: I've...

Damn must be nice! I'd be happy with just the garage.
Some people have just too much money. Shame I wasn't one of them. :(

So then when you charge the customer for the use of the reclaim machine, or the vacuum pump then the tech should get the money? Since it is his own piece of equipment.

No tanks, reclaim machines,...

The best thing they did in Maryland and Wash, DC was ban smoking in bars and resturants. Even the smokers I've talked to in these places realize it is for the best.
Office buildings use to allow...

I have to admit it. I have removed the plug at the board and jumped it there to run a test. I'm sure I've forgotten to put the plug back into place more then once.

Wait until your divorced thou, she might get that half also.

You got lucky.
I had a fight with a blower motor, and the motor won. Trying to adjust the motor sheave and belts. Standing on a ten foot ladder where I needed a twelve with a flash light in my...

Cities always look so much better from far away! :cool:

So true! I'm on my second divorce. Been seperated for 2 yrs now, and met someone 300 times better.
Men just want a beer and see woman naked! :D

Make a woman happy, and she will make you happy....

Work truck
2008 Ford E-350 17,880

Personal vehicles
1992 Jeep cherokee 88,628
1966 Ford Bronco mileage unknown odometer reads 41,543. Engine burned oil pulled motor found no cylinder wear....

You people don't know anything about horses do you? :rolleyes:
Horses don't like to lead! The lead horse is the one that gets eaten by the cougars. The horses that follow like being there also, they...

I guess if he is right we should all start praying to the Mayan God Hunba Ku!

I guess I can stop working, paying into my 401K plan, and hell stop paying taxes also! :rolleyes: Since the end is...

Thanks for the web site link jd 07.

I just took over a site containing this same type of system (5 of the MS30C). As usaul no I&O manuals on site! Have been having head pressure problems with...

The Lennox web site is not really any help. I think if you register they will send you unit literature. Here is the page for that model....

I like them myself!
I've put alot in over the last few years, and I haven't had to replace any yet. I've replaced alot of the P66 controlers thou, and you don't have to mess with the refrigerant...

Restricted coil, filters, or even blower motor rotating in the wrong direction.
Others things to look for are the return, and supply ducts.

Only the refrigerant production. And as it was with R-12, R-22 will still be around for some time to come. Sounds like you just went to a R-410A seminar.

esdd is right on that, and may be an easy fix. I've seen the factory economizer wiring compleatly cut out, rewired, and controled by the Novar system. Which I always thought this was stupid. Just let...

I just went through this same thing on a CHN 1880 boiler. Four of my burners were all twisted, melted, and others cracked. I replaced all twenty burners. I also found draft low, manifold pressure...

How about flowers and candy? :D Just kidding.
I did get a fifth of Captain Morgans Spiced Rum from one customer.

But a nice letter to the Company is good also like Bobb25 said. :o

Maybe you had a bad set of muffler bearings also! :D

I have the 5.4L in my work Van. That engine does have power, wish I had it in my 66" Bronco.

It's a shame homebrewing doesn't save you any money.

Here is a must have site for the beer drinkers out there.

http://www.allaboutbeer.com/ (and the Homebrewing page)...

So its time to get rid of the cats, air fresheners, and the wife! :)

Darn I go blabbing about how great it is not to work on call duty. Today we had a meeting, and the duty tech doesn't want that job any longer. Neither does anyone else. So we all have to go back on a...

Are you sure they aren't in low fire? Some units run 1.5"wc in low fire calling for only stage 1 heating. Calling for both stages it should be set at factory name plate settings.

I'm glad I don't work any after hour calls!
The company I work for has a technician that his full time job is the on call. He doesn't run any calls during normal business hours either. This is a...

Is this a programmable thermostat?
I'm don't know that brand of thermostat myself. Alot of programmable thermostats if the fan is set to "on" in the program setting the fan will still run even if...

Yes that's correct.
This is a high pressure line in the heat mode. In a heat pump it is not a suction line but a vapor line. The only part of the system that is a suction line is at the outlet of...

Units built on a Monday! :D

I have the seminar on tape. It has on this one 15 degrees minimum is recommened; readings taken 6 inches from the compressor inlet. That way they feel with low loads the superheat will not drop below...

I think you need another heat load calculation done. Then double it for redundancy.

Call the company back. Tell them you want a second opinion, and send out a senior level tech. Could be something simple like the installers setup of the thermostat.

It's your wiring. I see what you did, but I'm not allowed to tell you. Sorry site rules.

Didn't you say the compressor was just replaced in your last thread? Was the drier even replaced? What is the head pressure? I've seen systems overcharged do the same where the P66 or other fan...

The company I'm with now has that crap in every vehicle they have. Every time you drive over 70 for like 3 minuets it flags the owner. Nothing, but a baby sitting tool. :mad:
They can tell where...

I don't like using a dye myself.
One time I replaced the compressor oil and recharged a system using the maintence shops refrigerant at a high rise office building. I noticed the oil got redder as...

Adjust the superheat then!

At room temperture of 68 degrees the lowest you want to see is 10 degrees. I like to see near 15-16 myself. Make your adjustments in small increments. The compressor...

I know I would definitely keep the boiler reset control and add the two stage heat thermostat. The air handler is not going to effect the reset control. It only senses outside air temp and boiler...

Just as Senior Tech said if it feels dry turn it up, if you see condenstation turn it down.
Mine is set at 40% and I never have to adjust it. I may if I had steam humidifier, but my Aprilair...

I forget what they are called, but panels are placed against the roof deck. Insulation is placed inside the roof joist, then dry wall as normal. The panels allow for ventilation between the...

Is the 2nd floor unit really that bad? You said it was only 7yrs old.
You could always have the ducts modified for proper air flow required. Add the Ductless split to your frog.
Also it may help...

Does it work in the test mode?

Talking to Trauslen was helpful in my case. They even faxed the instructions to me all 35 pages. The number I called was 1-800-825-8220 I talked with Lewie there.
I replaced one of those...

I agree and also to a small degree it acts a as water hammer device also.

I find them like that often, as well as lift pumps. Seems like places with older tanks are effected. I often can clean them and get them working again. I wasn't successful with the last one thou.