Copper glavanized steel cpvc and pex or pe rt are all approved.
Condensate drain pipe material.
M 314 2 2 drain pipe materials and sizes.
System application and material usage.
An auxiliary drain pan with separate drain.
11 pipe should be of approved materials.
Condensate shall not discharge into a street alley or other areas so as to cause a nuisance.
The recommended material to use for a condensate system is stainless steel.
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.
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.
Pvc piping systems are recognized as acceptable for use in condensate drain systems in all major model plumbing codes.
If amines commonly cyclohexylamine morpholine or diethylethanolamine deae are fed properly to neutralize condensate pipe ph condensate pipes can last.
I don t have an outside drain for my condensate pipe.
Plastic with a separate drain installed under.
Pvc is not approved because it is not rated for transporting hot water.
The pipe needs to be made from a material different to copper or steel that won t be corroded.
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.
These drain lines carry away condensation produced by the operation of the evaporator on the air conditioner unit.
For some reason the installer of the water heater shown below decided that the tpr drain piping needed a vent pipe.
On some occasions there won t be an outside drain for the waste water to exit out of the condensate pipe.
However corrosion is an issue in steam condensate pipes and many engineers specify schedule 80 steel pipe simply because it takes about twice as long to rust through as schedule 40 pipe.
If this applies to you then don t panic.
For condensate drain applications solid walled pipe either schedule 40 or constant pressure rated standard dimensional ration sdr is used.