There are two types of drain pans.
Auxiliary ac condensate drain instruction in attic installs.
An ac unit will produce condensate all the time not just when its over a certain temp outside.
A primary pan that is installed on the coil and an auxiliary pan that is either installed inside the unit below the primary pan or under the unit.
Plastic with a separate drain installed under.
When a drain line is pvc the imc dictates that it should be supported every 4 when horizontal while maintaining proper pitch and every 10 vertically.
So why put an hvac system up in the attic at all.
Imc 307 2 5 states that the condensate assembly must be installed in such a way that the drain line can be cleared of blockages and maintained without cutting the drain.
Look for white pvc pipe around 3 4 inch 1 9 cm in diameter coming out of your ac system s indoor unit.
An auxiliary drain pan with separate drain.
A central air conditioner condensate trap purpose is to prevent air from being discharged from or sucked back into the a coil compartment or air handler during system operation.
The primary ac condensate drain is normally drained to either the main house drain or to the outside via a pvc pipe about the same size as the on draining into the garage.
Well mainly it s a way to save space.
The auxiliary pan drain shall discharge to a conspicuous point of disposal to alert occupants in the event of stoppage of the primary drain.
An auxiliary drain pan with a separate drain shall be installed under the coils on which condensation will occur.
An auxiliary drain pan with a separate drain to a conspicuous location.
Most but not all ac units will have an easy to locate access point to the drain line.
Find the condensate drain line and drain line access point.
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.
Check your ac unit in the attic.
Drip pans also called condensate pans are placed under the air conditioner coils to catch any condensation that forms.
This drain plays an important role in removing any condensation that your air conditioner s evaporator coil may produce.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
For the attic air conditioner drip pan installation a missing trap on the primary ac condensate discharge pipe compromises system s efficiency.