Recent content by blutfort

As long as proper piping practices are followed and the water to refrigerant HX is properly selected there should be few mechanical reasons. There might be several environmental ones. In your piping watch out for oil traps; make certain that oil can return to the compressor; make certain that...

Sorry if I'm telling you stuff you already know... A watchdog timer is a timer setup to reset a device should the "Timer" think the device has "Hung". If the watchdog timer expires it probably cycles power to the PLC, or grounds a Reset Pin. The PLC needs to tell the watchdog timer that it is...

Sounds to me like you are justified in being upset, AND whining. You will get a lot further and be a lot happier not worrying about how much of a raise Joe and Pete got. Spend your time and energy focusing on the things you can change. Not the brown nosing behavior of someone else. Life is...

By logical do you mean in software and communicated over a DDC communication link? e.g. Lon, BACNet, N2, etc... I can only speak for US regulations, and then your local jurisdiction may have some specifics that need to be considered. If you do mean over a communications link the controllers...

the Microsoft Document Image Writer Driver does this. It is installed when you install MS Office. It might be available as a separate download if you look around MS site.

Is this what you are after? ********************************** Dim A as Variant Dim e as String Dim i as integer A={1;2;3;4;5} e="y" for i = 1 to 5 A(i) = A(i) & e next i ********************************** At the point of exit, the Array A would contain the following...

This has to be the most thought that has ever been put into a unit heater project. ;-)

If I understand your question correctly 6" round duct has a standard pressure drop per 100 feet at a given cfm your ductulator should have that value for you. The vendor of the diffuser should have a table in their catalog or IOM that gives static drop at various cfms, or m3/h in your case...

Ditto to what DRWirg said. Plus wouldn't the reduced air flow into the room help minimize fan energy. Isn't that a big plus of a VAV system.

While I can't specifically address AutoCAD civil. We use Inventor and the license permits an installation on a home machine for professional use while employed with the employer. Provided the same license isn't used at both locations at the same time. You wouldn't be violating any EULA. You...

While I don't know you...I'm guessing when you answered yes, yes, no. You were fully aware of the high probability someone was going to get their nose out of joint. I do the same thing on occasion to make a point. You just got busted this time. I'm reminded of an old Brady Bunch episode...If...

You didn't state if you were using gas/LP/Hot Water/electric heat... If assuming electric since you are so concerned about the electrical data. You also need to know single or three phase so I'd find this out before diving in too far. How much outdoor air are you planning on bringing in for...

My personal experience has been that both groups are the same, but I've been told by a lot of people that they think UL is the worst to work with. All of the technicians that come to our plant to evaluate stuff seem great to work with, but the sales force in both are typical salesmen. I've been...

Is convert() in an add in pack for excel or is it a different spreadsheet? Or are you just being humorous?

Assuming Sq inches in cell B1 and you want sq ft in cell C1. Formula for Cell C1 is: =B1/144 If you also want to then divide by the secret number 116.25 (?Bags of Jelly Beans / Sq ft?) Cell D1 is then =ROUNDUP(C1/116.25) or =INT(C1/116.25+.999)