Condensate Drain Pipe Material

Plastic with a separate drain installed under.

Condensate drain pipe material.

An auxiliary drain pan with separate drain. 11 pipe should be of approved materials. The key to this project is to measure out the path of the drain line properly as this will tell you exactly how much pipe material you need. For some reason the installer of the water heater shown below decided that the tpr drain piping needed a vent pipe.

Copper glavanized steel cpvc and pex or pe rt are all approved. Components of the condensate disposal system shall be cast iron galvanized steel copper cross linked polyethylene polybutylene polyethylene abs cpvc or pvc pipe or tubing. I don t have an outside drain for my condensate pipe. If amines commonly cyclohexylamine morpholine or diethylethanolamine deae are fed properly to neutralize condensate pipe ph condensate pipes can last.

Condensate switches imc 307 2 3 states that all hvac equipment that produces condensate must have either a secondary drain line or a condensate overflow switch a secondary drain pan with a secondary drain line or condensate switch or some combination of these installations should be used to prevent overflow if the primary drain line blocks. The recommended material to use for a condensate system is stainless steel. An auxiliary condensate drain pan at least 1 5 deep and at least 3 larger than the length width of the appliance beneath which it is placed using corrosion resistant material of adequate thickness 0 7mm galvanized metal or 1 6mm non metallic e g. The pipe needs to be made from a material different to copper or steel that won t be corroded.

On some occasions there won t be an outside drain for the waste water to exit out of the condensate pipe. For condensate drain applications solid walled pipe either schedule 40 or constant pressure rated standard dimensional ration sdr is used. These drain lines carry away condensation produced by the operation of the evaporator on the air conditioner unit. Condensate shall not discharge into a street alley or other areas so as to cause a nuisance.

Because condensate pipelines are potentially subjected to carbonic acid a damaging corrosive element material selection is important. Pvc is not approved because it is not rated for transporting hot water. Stainless steel greatly enhances the pipes ability to withstand the corrosive attack for a longer more reliable. Pvc piping systems are recognized as acceptable for use in condensate drain systems in all major model plumbing codes.

M 314 2 2 drain pipe materials and sizes.