“C”
“D”
Continue into
sanitary drain.
Minimum Dimensions for Vent Pipe Condensate Drain Trap
“C” = to suit the installation
“D” = “C” plus at least 1-1/2 inches (38mm)
Use 1/2” PVC pipe or larger for condensate trap.
The 4” PVC cleanout cap shown here is in the
vent/combustion air kit (Option CC6 or CC2); it
is drilled and tapped for a 1/2” NPT fitting.
Model
UEAS
Drain Trap
OR, the vent drain connection
fittings may be field-supplied as shown here.
Drain must be 1/2” or larger. The trap requirements
are the same for either type of drain connection.
NOTE: In Canada, all PVC vent pipe must be approved to ULC S636.
FIGURE 21 - Secondary Heat
Exchanger Condensate Drain Trap
FIGURE 22 - Vent Pipe Condensate Drain Trap
Model UEAS
HEATER
Minimum Dimensions for Secondary
Heat Exchanger Condensate Drain Trap
“A” = 3 inches (76mm) minimum
“B” = “A” plus at least 5 inches (127mm)
Use 1/2” PVC pipe or larger for condensate drain.
Drain Trap
Continue into sanitary drain.
“A”
“B”
NOTE:
Bottom of fan guard
is removed for better view.
See Rear View in
FIGURE 2
,
page 7, for location of
condensate drain connection.
Form I-UEAS, P/N 221232 R6, Page 29
