Hello all, we are working on a healthcare project that involves numerous large rooftop units equipped with a common service corridor (see the enclosed picture for an example of the RTU and service corridor). These corridors are heated for service in the winter time. Units are accessed by roof...
Hello everyone, I hope I can get some input on this question. I am working working with an owner on the review of his fire pump system. The campus has approx. 5 building spread out over the property and has a pump house with a primary electric vertical turbine fire pump and a back-up vertical...
I am hoping that someone might recall an excellent article by Ken Isman (of NFSA), I believe (not 100% sure), regarding estimating sprinkler demand by hand. It is very useful in the beginning of a project to estimate the sprinkler demand in order to determine if a fire pump may be required. I...
When designing new hydronic systems, we generally have separate heating loops for radiation units (i.e. wall fin, unit heaters, etc.) and reheat coils. I have seen many older buildings where the reheat and radiation are on the same heating loop (i.e. share the same supply and return piping and...
I have a large space that is very similar to a warehouse, but is used for file storage (i.e. insurance company records). The roof height is 22'-0" AFF, with rows of 12'-0" high storage racks. There will be a couple of people that walk up and down the aisles throughout the day to retrive and put...
I've heard that in order to keep your interview skills sharp you should plan to go through a job interview every so often. I have not been through an interview in approx. 6 years and I am thinking of doing this (with the purpose of seeing what other opportunities are out there, as well as seeing...
New to HVAC field and I am wondering if anyone knows where you can get some general information on the type insulation to use on ductwork, i.e. when to use accoustic insulation, flexible versus rigid insulation, insulation on outdoor ductwork versus indoor ductwork, etc.
The master spec. that...
