Permit · MVQ2600016Washington DC Open DataHVAC
236 Farragut St NW, Washington, Dc 20011
Washington · DC
Issued
Wednesday, April 8, 2026
Filed value
Not listed
Contractor
Sara LangmeadCounty
District of Columbia
Status
issued
Washington · DC
Subtitle 12-E DCMR, mechanical code supplement of 2021, is amended as follows: IMC - 2021 Article 1109.3.2 Refrigerant pipes shafts using group "A2L" or "B2L" refrigerant shall be naturally or mechanically ventilated. Please see attachment M-1. The existing buildings are historic with solid masonry walls. Creating shafts for refrigerant lines in general location in each apartment is not feasible. The existing masonry boiler chimney will be repurposed as the piping shaft. It extends all the way to the basement, and there is no space to configure a vent pipe that discharges to the exterior from that level.