HeatWater.com | WaterService@nyle.com | (800) 777-6953 IM-e360-122023
22
IM-e360-122023 HeatWater.com | WaterService@nyle.com | (800) 777-6953
Condensate Piping Requirements
1. At least 1/4" pitch per linear foot toward drain or
freeze protected condensate pump.
2. Minimum 3/4" pipe size.
3. Insulation and heat tracing on all piping exposed to
freezing temperatures.
4. All condensate pipes should include a trap with at
least 3" standing water height.
5. All traps require a vent immediately downstream
from the trap. Vents should extend to a point higher
than the drain pan of the heat pump. Vents must be
in a freeze protected space.
6. Condensate pumps require their own trap and vent
piping, and an indirect piping connection from the
heat pump condensate discharge pipe. Vent pipes
need to terminate higher than the condensate pump.
7. Any drain connection to septic requires an indirect
connection and trap. Pay special attention to all lo-
cal codes and ordinances if connecting to septic.
8. When multiple units are connected to the same
condensate piping, Nyle recommends the use of
isolation valves to allow blowing out of individual
lines when necessary.
Figure 12: Condensate Piping
B
Detail B
3"
6"
Minimum 3/4" pipe
1/4" per foot
minimum slope
Vent above drain pan
Note: Insulation and heat trace required in freezing climates.
Install vent and trap assembly
in frost protected area.
To condensate pump,
indirect connection to septic,
or frost protected drain
To Next Page
Loading...
