HomeMy WebLinkAboutLETTER FROM GMS
GMS, Inc.
Gartman Mechanical Services
Heating. Ventilating. Air conditioning. Sheet Metal
P.O. Box 226¿sJ~~~;~t5~~~~park AvenRE C
(920)231-5530 Fax (920)231-0486 ~.' or";:
OCT 2 42005
October 21,2005
Kevin Benner
Electrical Inspector
City Of Oshkosh
City Hall Inspection Services Division
215 Church Avenue
P.O. Box 1130
Oshkosh, WI 54903-1130
Re: Dr. Mann office/hanger
20th Avenue, Oshkosh, WI
Dear Kevin,
We respond to a letter of 10/11/05 concerning the ventilation and HV AC system at the
Dr. Mann office/hanger, 815 W. 20th Avenue, Oshkosh, WI.
We enclose a copy of your letter for reference.
Weare aware of this requirement from approximately two years ago and had advised the
owner and general contractor ofthe requirement to maintain a positive pressure in the
office.
The office system is designed with a furnace that has an outside air intake which draws in
outside air and mixes it with return air from the space. The net result is that, even with
toilet exhaust, the system provides a slight positive pressure in the office.
We have advised them that they should run the system 24 hours per day, seven days per
week, 365 days per year, but we have not been able to monitor if Dr. Mann actually does
that on a regular basis. Obviously, we are not a babysitter for a building owner, once we
have completed ajob.
The ventilation system for the hanger itself has unit heaters which heat the space and
overcome infiltration. The unit heaters were to cover ventilation load caused by the
Page 2
operation of the exhaust ventilation fan and an inlet damper which opens and operates
five hours out of every 24 hours by a timer. The system further senses carbon monoxide
at two locations and if there is an alarm it will start the exhaust fan, open the inlet
damper, and provide an audible and visual alarm in the area it there is an adverse
condition.
To the best of our knowledge this system is still working as it was originally designed
and as we set it up at the completion of the job.
Weare forwarding a copy of this letter to Dr. Mann to advise to him to operate the
system as discussed in your letter of 10/11/05 and as previously pointed out when the job
was completed.
We trust this will satisfy your ongoing concern about this matter.
If you have any questions, or if more information is required, please contact us.
~ø~
Keith N. Paul, P.E.
KNP/mh
Enclosure
Cc: Dr. Robert F. Mann
815 W. 20th Avenue
Oshkosh, WI 54902
CITY HALL
Inspection Services Div
215 Church Avenue
PO Box 1130
~ Oshkosh WI
~ 54903-1130
OfHKOfH
ON 'HE WA>ER
City of Oshkosh
Dr. Robert F. Mann
815 W 20th Ave
Oshkosh WI 54902
10/11/05
Dear Dr. Mann,
In review of our files it is noted that your contractors have not notified this office that the
previously noted violations of Comm. 16, which is the State of Wisconsin Electrical
Code which adopts the National Electrical Code have been made. The situation is as
follows, the codes require that a positive air pressure be maintained between the hanger
and the office area. This is required so that if there are hazardous vapors in your hanger
the vapors could not enter your office.
Our records show that during the rough-in stage of the project this was discussed with
the general contractor and the electrical contractor. At that time the general contractor
stated that the furnace would run 24 hours a day, 7 days a week, 365 days a year, and that
more air would enter your space than would be exhausted. At the time of the final
inspection this again was noted and discussed with the same two contractors. Keith from
Gartman Mechanical then contacted me (Kevin Benner) to discuss the requirements and
what is needed to comply with this requirement. I forwarded the code requirements 'to
Keith at that time.
To date I have not been able to verify that this requirement has been satisfied. Any
information, questions or concerns please feel free to contact me at 236-5046 or email
kbenner¡@ci.oshkosh.wi,us
Renrd?--.
K~B ß~
evm enner
City of Oshkosh Electrical Inspector
CC: Gartman Mechanical Services
Wayne Gayhart
Cumings Electric