| 5.3003.38a
Connection | Connections in condensate drain system will be watertight | Ensure condensate drain connection does not leak |
| 5.3003.38b
Insulation | Condensate drain lines will be insulated with a minimum 1" of insulation with a
vapor retarder
Vapor retarder
A material that slows the passage of water vapor and contains a perm rating above 1
when there is potential for condensation or freezing on the drain line | Ensure condensate drain connections do not leak |
| 5.3003.38c
Overflow protection: up flow | Secondary drain pan and float switch will be installed when overflow could damage finished surfaces or up flow systems will have a float switch installed in the primary condensate drain when overflow could damage finished surfaces Float switch will be interlocked with the cooling circuit and will break the circuit when a leak occurs | Ensure condensate drain connections do not leak |
| 5.3003.38d
Pumps | Condensate drain pumps will be installed when condensate cannot be drained by gravity Power source for pumps will be installed Operation and drainage of pump will be verified | Ensure condensate drain connections do not leak |
| 5.3003.38e
Vents and traps | Vents and traps will be installed on condensate drain lines, including condensing heating systems in accordance with manufacturer specifications For combustion-heating equipment, trap supplied with the equipment will be used in accordance with manufacturer specifications | Ensure condensate drain operates as designed Ensure condensate drain does not leak |
| 5.3003.38f
Drain pan | A secondary drain pan will be installed for all air conditioning, air handler, or evaporator coil installations where water damage may occur The secondary pan will contain a drain, which will be ran separately from the primary condensate drain to a visible termination point The secondary drain pan will be pitched toward the drain line to ensure that moisture is removed from the building | Prevent water damage from a malfunctioning drain system To alert building owner or maintenance staff that a problem exists |
| 5.3003.38g
Water level detection device | All secondary drain pans will have a water level detection device interlocked with the cooling control circuit that shuts down the unit when a leak occurs | Prevent water from overflowing the pan and draining onto the ceiling below |
| 5.3003.38h
Termination | Condensate drain will be terminated in accordance with local codes | Ensure condensate does not leak into the building Ensure condensate drain does not freeze |
