Can anyone send me to a site online that has step-by-step maintenance procedures for HVAC equipment.
We are needing to develop these at our plant site and I can't believe there is not a site online that has many of these things already detailed. I am hoping to find some that are substantially...
I am looking at a project that was not my design but is now mine to resolve.
Without having access to the early design decisions, it appears that the rooftop units are about 2 x as big as necessary. When the thermostat calls for cooling, it is satisfied pretty quickly, thus the compressor does...
I am interested in obtaining a small diesel engine to use on a home-built off-road vehicle project of mine. Something on the order of 5-10 hp would be all I need.
But either I am not good at finding them or they are hard to find, at least at any price I would be willing to pay.
Does anyone...
I have a friend who has a friend (no, really) who flies a helicopter for a living. As I understand it, they have to test the fuel very often and then have to discard the fuel pulled for the test. They generate a couple of hundred gallons of clean, waste JP4 fuel each month. Until now they...
Pardon me, this is WAY out of my field (HVAC design), but I have an interest in it.
Anybody familiar with the Rokon off road motorcycles? They are 2 wheel drive using (what appears to me) to be a pretty complex mechanical drive system.
It occurs to me that it would be much neater to use a...
Ok, I feel really dumb about this. It seems like it should be straight forward, but I can't wrap my head around it.
I have a project with about 250 hp of conveyor motors. These conveyors move product both horizontally and vertically. Eventually, one of the conveyors moves the product out of...
You know, it is best to be careful what you wish for.
After all my years of bitching about architects, the shoe is on the other foot.
I have a client who has a metal building, currently only ventilated. He wants to air condition it, not heat it. He wants to use a spray on insulation.
My...
I stumbled upon this device a while ago. I wondered if anyone here is familiar with this DX control device.
"The APR Control provides capacity modulation for all sizes and configurations of air conditioning systems. By matching system capacity to continuously changing load conditions, the APR...
I am becoming more and more grateful for the years I was able to do design with big built up chilled water cooling and steam heat air systems. Doing good design using "less sophisticated" equipment is HARD!
I have been involved recently in one way or another with about 25 - 100% OA, DX...
I worked for almost 20 years for a public institution. During that time I worked up a list of goals of our mechanical systems, trying to get good value for the tax payers money.
Some of these may or may not apply to all situations, but I thought it might be worthy of discussion.
Systems shall...
I would like to find information about Residential Condenser Evaporative Precoolers.
If you look at this link: http://www.pge.com/003_save_energy/003c_edu_train/pec/info_resource/pdf/ac2eval1.pdf
PG&E study shows a reasonable increase in efficiency.
But I can't find any information about...
I have taken a job with a firm that is really just starting a facilities type engineering group. There is currently virtually no library, codes, standards, etc.
I want to make a list of items management should buy. Kind of a wierd situation, generally when you need something you go look for...
