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P-Trap in Attic

Uncle Bob

Registered User
Joined
Oct 17, 2009
Messages
1,409
Location
Texas
Mech installer cuts sanitary vent in attic and installs a sanitary tee and p-trap to run his HVAC condensate line into.

How do you handle this? Code section to back your decision please?

Uncle Bob
 
Welcome back Uncle Bob!

How will the trap be protected from freezing (RE: Section P3201.2

from the 2006 IRC)?

.
 
Uncle Bob said:
Mech installer cuts sanitary vent in attic and installs a sanitary tee and p-trap to run his HVAC condensate line into.How do you handle this? Code section to back your decision please?

Uncle Bob
Start with IPC 314.2.1 Condensate Disposal. Then 1002.4 Trap Seals, will a primer be required, and 801.2 Protection from back-flow, flooding, freezing, etc.
 
Also, see Section P3101.3 in the 2006 IRC.

P3101.3 Use limitations.

The plumbing vent system shall not be used for purposes other than

the venting of the plumbing system.

.
 
307.2.1 Condensate disposal.

Condensate from all cooling coils and evaporators shall be conveyed from the drain pan outlet to an approved place of disposal.

The AHJ is the one who approves the place of disposal. Some jurisdictions do not allow condensate to discharge into the sanitary sewer because the condensate will overload the treatment plants.
 
Uncle Bob said:
Code section to back your decision please?Uncle Bob
P2601.1 Scope. The provisions of this chapter shall govern the installation of plumbing not specifically covered in other chapters applicable to plumbing systems. The installation of plumbing, appliances, equipment and systems not addressed by this code shall comply with the applicable provisions of the International Plumbing Code.

P2706.1 General. Every waste receptor shall be of an approved type. Plumbing fixtures or other receptors receiving the discharge of indirect waste pipes shall be shaped and have a capacity to prevent splashing or flooding and shall be readily accessible for inspection and cleaning. ... Ready access shall be provided to waste receptors.

It's a stretch but helps defines readily accessible;

IPC 202 READY ACCESS. That which enables a fixture, appliance or equipment to be directly reached without requiring the removal or movement of any panel, door or similar obstruction and without the use of a portable ladder, step stool or similar device.

There may be something to the effect of floor surfaces for drains hidden in the code.

Francis
 
Last edited by a moderator:
Thanks Ya'll :)

Also, M 14ll.3 "Approved" (by the building official) location.

Oiling the brain; thanks for the help,

Uncle Bob
 
globe trekker said:
Also, see Section P3101.3 in the 2006 IRC.P3101.3 Use limitations.

The plumbing vent system shall not be used for purposes other than

the venting of the plumbing system.

.
This is a great thread. This is the one thing that really intrigues me because we now just turned the originally designed dry vent into a wet vent and that could change everything below if we can't see inside the walls.
 
Thanks Ya'll,

It's good to be back in harness; and back with friends. Thanks for the help.

Uncle Bob :)
 
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