Condensate Disposal
Baltimore City Code, Building Codes, Part V, Section 307
in effectSection 307. Condensate Disposal
307.1 Fuel-burning appliances. {As in IMC}
307.2 Evaporators and cooling coils. {As in IMC}
307.2.1 Condensate disposal.
Condensate from all cooling coils or evaporators must be conveyed from the drain pan outlet to an approved place of disposal. The piping must maintain a minimum horizontal slope in the direction of discharge of not less than one-eighth unit vertical in 12 units horizontal (1% slope). Condensate may not discharge into a street, alley, or other area so as to cause a nuisance. Clear water discharge must be conveyed to the storm drain where feasible unless otherwise approved by the Code Official.
307.2.2 Drain pipe material and sizes. {As in IMC}
307.2.3 Auxiliary and secondary drain systems. {As in IMC}
307.2.4 Traps. {Not adopted}
307.2.5 Drain line maintenance. {As in IMC}
307.3 Condensate pumps. {As in IMC}
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/building-codes/V/307Fetched: 10/25/2026