Yes, it's possible to get a generator installed on a roof, but it will be an expensive project in our area due to the code compliance issues. However, most commercial buildings will have a preexisting emergency power system for critical loads installed already. There are strict requirements such as sub 10 second startup times, routine testing, and fuel availability requirements. If you talk to the building engineer, you might be able to convince them to allow you a small amount of power from an emergency circuit. The buildings I am in do this for most of their tenants for phone systems, etc.
Failing that, have an electrician run conduit to the parking lot and place a power inlet down there. Be sure to have 24 hours of battery capacity, and use a trailer-mounted generator in the parking lot for the rare outage that lasts longer than the batteries. Patrick Shoemaker Vector Data Systems LLC shoemak...@vectordatasystems.com office: (301) 358-1690 x36 http://www.vectordatasystems.com Tom DeReggi wrote: > While on the topic of generators..... > > Anyone have advice on how to accommodate generators in Commercial > Multi-tenant buildings. > > Several things come to mind... Gas generators are definately not allowed on > roofs, for fire safety reasons. > Adequate ventilation is likely needed for either gas or Propain generators. > > What type propain generators would likely gain permission to get installed > in a rooftop penthouse? or Roof? > > If a propain generator was used on a top floor, how would Propain get > re-fueled easilly? > Is is standard proceedure to have removable tanks, and just have new tanks > swapped (like a gas grill).? > Or is is customary to have tanks on the ground level? > Or is it always standard to put the generator at ground level, and run AC > wire up to the roof level? > Do propain gas trucks have long enough hoses to reach rooms inside parking > garages? Not likely will fit driving into parking garage? > > Do property owners worry about propain blowing up, and have limits to where > the tanks can be placed? > > I'm sure some of this is in local building code. And I can probably best > guess some of the answers for above. > > But what re other people doing, to both install and maintain at the lowest > dollar cost.? > > I saw those Generac propain models before, and they are very affordable. > Just wondering if feasible to install them on roofs/penthouses. > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > ----- Original Message ----- > From: "Jerry Richardson" <jrichard...@aircloud.com> > To: "WISPA General List" <wireless@wispa.org> > Sent: Sunday, August 02, 2009 3:08 PM > Subject: Re: [WISPA] Small auto start generator > > >> Thank you, >> That is very good advice. After some research, I'm leaning toward a UPS. >> >> A pair of good AGM batteries and charge controller will cost less and be >> far less maintainence. Then I'd just run the CMM off the batteries @ >> 24VDC. >> >> Thanks again >> Jerry >> >> >> -----Original Message----- >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> Behalf Of Gary Garrett >> Sent: Sunday, August 02, 2009 11:59 AM >> To: WISPA General List >> Subject: Re: [WISPA] Small auto start generator >> >> Small generators do not auto start very reliably. >> When cold or dampness causes hard starting the starter can overheat and >> burn out. Generally you need an electric choke to start gas engines, >> propane can "flood" and need to rest before trying again, diesel can be >> REAL hard to start when cold. Auto starters can not adapt to changing >> conditions. >> Our best generator is a Propane Ford inline 6 cyl. 25 KW 3 phase. (1955 >> Model) >> The monitor cranks for 1 min then rests and tries 3 times. Everything is >> adjustable. It knows to stop cranking when it sees AC voltage from the >> Gen. so the motor over runs the starter for just a few seconds. Only a >> huge starter motor can take this abuse and last unattended. >> >> You may be money ahead to find out why the existing generator is not >> starting and get it fixed. >> >> Jerry Richardson wrote: >>> We rent on a tower that is suspposed to have gen-set backup but it does >>> not start reliably. >>> >>> Any recommendations on a small auto-start generator? We only need to >>> power a CMMmicro - ~100watts. >>> >>> Thanks >>> >>> >>> >>> __________________________________ >>> Jerry Richardson >>> airCloud Communications >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> WISPA Wants You! 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