As a mechanical engineer, I design/specify HVAC for buildings such as K-12 schools, churches, etc. and have several years experience with split DX HVAC, but little experience with the chilled water/hydronic systems. Over the years, I've developed working friendship with other engineers for...
I am involved with updating our engineering company's code books. Which do you think is the better NESC 2012 handbook ... the IEEE website handbook by Wiley Clapp or the McGraw-Hill handbook by David Marne? (... will also be purchasing the 2012 NESC code book.) Our company is occasionally...
I have been invited to a meeting with a local school to discuss an unexpected 25% jump in the KW usage of their monthly High School building bills (last 2 months). The building (classrooms, gym, band hall) was built in 2002, and KW usage has been repeatable over the years, so the 25% jump is...
I want to thank all the responders for the good, practical advise. After looking at some of the starting watt versus running watt information, I think I just need to get all the nameplate/manufacturer information and buy a genset that is plenty big enough.
Thanks again
I am installing a generator serving lights and 2 refrigerators and 1 freezer for a Volunteer Fire Station. Each is the typical household appliance. Plans are for a 20A circuit for each.
To reduce the generator load (...and size/cost), I would like to alternate turning the appliances off...
When installing a standby generator outdoors (such as for a remote water well or sewer lift station) is there a code requirement for a site light (such as a pole mounted metal halide or high pressure sodium area light) to illuminate the genset and transfer switch for refueling (diesel) and...
alehman,
Thanks for the response.
This is a packaged system with everything outside the building (only thermostat and some ductwork inside).
The existing buidling circuits are 120V1PH and 208V1PH fed from a 208V3PH panel located inside the building. The new packaged unit circuit is...
waross,
Thanks for the comment. It will be up to the AHJ as you say; he may see the installation as separate from the building electrical with your idea.
I am working on a renovation of an existing school campus. The PE gym is currently fed from a breaker in a panel "MDP1" inside the adjacent (not connected) elementary school building. The school would like to add air conditioning to the gym (a packaged A/C unit setting on a pad outside the...
