Reznor YDSA Unit Installation Manual User Manual
Page 57
Form I-Y, P/N 273646R6, Page 57
Freeze Resistant Trap, P/N 271064, is shipped with
the unit to be installed in the condensate drain.
It is mandatory that the drain be run through the inside
of the roof curb and into the heated space. The drain
must always be installed in a space that remains above
32°F(0°C).
NOTE: All PVC drain pipe is provided by the installer.
Since this drain will be used during the heating season, it is mandatory that the drain
be run through the inside of the roof curb and into the heated space. The drain must
always be installed in a space that remains above 32°F(0°C). Refer to
FIGURE 29A,
shown below
and FIGURE 29B, page 58 and follow the instructions below to install
the condensate drain including the freeze-resistant trap.
If additional frost protection
Option FB1 is being installed, follow the instructions that are provided with the heat
tape. A 115V power supply is required.
If a condensate neutralizer kit Option CSN1 is being installed, follow the instruc-
tions provided with the kit. When a condensate neutralizer is used, an overflow must be
provided so that the condensate will be directed to the drain in the event the neutralizer
becomes plugged. Install a barb “T” in the drain line prior to the inlet of the neutralizer
and run a clear flexible PVC line from the horizontal outlet of the barb “T” to the drain.
Follow the manufacturer’s instructions to recharge the neutralizer tube.
A condensate disposal system that relies on gravity should be satisfactory for most
installations since units are normally installed on the roof.
If a gravity system is not
possible, install an Option CSP1 condensate pump. Follow the pump manufactur-
ers instructions included with the pump. The pump requires a 115V electrical supply.
FIGURE 29A - Location of the Condensate Drain Connection(s) in a High Efficiency Heat Section
(Dual heat section is illustrated.)
= Field-supplied 1/2” PVC pipe(s)
Condensate
Drain Pressure
Switch Tap
Condensate
Drain Pressure
Switch Tap
High-Efficiency
Vent(s)
For units with one heat section (Sizes G150, G225,
and G300), follow the instructions in FIGURE 29B to
install the freeze-resistant trap.
For units with two heat sections (Sizes G302, G372, and G452), join the two PVC drain
pipes with a tee before installing the trap. Follow the instructions in FIGURE 29B.
Drain Connection(s)
(
NOTE: If any of these
condensate drain
accessories (neutralizer kit,
condensate pump, or frost
protection) are required but
were not ordered with the
unit, contact your distributor.
Condensate Drain
Requirements and
Accessories