February 8, 2024
From the 2024 UPC Illustrated Training Manual, Chapter 8, INDIRECT WASTES
814.6 Condensate Waste from Air-Conditioning Coils. Where the condensate waste from air-conditioning coils discharges by direct connection to a lavatory tailpiece or to an approved accessible inlet on a bathtub overflow, the connection shall be located in the area controlled by the same person controlling the air-conditioned space.
A condensate indirect waste line may discharge and connect to the tailpiece of a lavatory (see Figure 814.6a) or the overflow of a bathtub (see Figure 814.6b). Both areas of connection must be accessible and both should be wye-type connections. This only applies to condensate waste. The user of this Code should consult the AHJ prior to installing commercial appliances to determine whether a direct or indirect connection in required on a specific appliance.
If the condensate is discharging in a space you control, you also need to be able control when condensate can drain in that location by controlling the thermostat. Imagine if there was a stoppage where condensate was discharging, and you didn’t have access to shut-off the AC equipment.
(This is not to be considered the official position of IAPMO, nor is it an official interpretation of the Codes.)
IAPMO
IAPMO develops and publishes the Uniform Plumbing Code®,the most widely recognized code of practice used by the plumbing industry worldwide; Uniform Mechanical Code®; Uniform Swimming Pool, Spa and Hot Tub Code®; and Uniform Solar Energy, Hydronics and Geothermal Code™ — the only plumbing, mechanical, solar energy and swimming pool codes designated by ANSI as American National Standards — and the Water Efficiency Standard (WE-Stand)™. IAPMO works with government, contractors, labor force, and manufacturers to produce product standards, technical manuals, personnel certification/educational programs and additional resources in order to meet the ever-evolving demands of the industry in protecting public health and safety.
Last modified: February 8, 2024