Napoleon WSX-N Series, Installation And Operating Instructions Manual

Page: 32 / 156

W415-3101 / B / 01.09.23
32
IOM IOM
THE TWO INLETS TO THE DRAIN TRAP ARE FOR VENT PIPE AND FMC CONDENSATE COLLECTION.
THE VENT PIPE INLET IS SMALLER THAN THE CONDENSATE COLLECTION INLET. ENSURE THAT
THE DRAIN HOSES ARE PROPERLY CUT TO THE REQUIRED LENGTH, CONNECTED AND SECURED.
CAUTION
! !
11.4 DRAIN HOSE INSTALLATION
H16.4.3
1. Ensure one end of the 5/8” tubing is connected to the most direct drain outlet on the front manifold cover,
and the other end to the larger elbow on the condensate trap assembly. Cut excess tubing if necessary
and hold in place with the supplied plastic hose clamps (in parts bag).
2. Ensure one end of the 1/2” tubing is connected to the drain outlet on the exhauster, and the other end to
the smaller elbow on the condensate trap assembly. Cut excess tubing if necessary.
H16 4 3
NOTE
All condensate drain tubing must slope towards the condensate trap, ensuring that the drain
hoses do not create traps or kinks in the hose prior to the condensate trap assembly.
IMPORTANT:
CONNECT 1/2 ” TEE FITTING
(FIELD SUPPLIED) TO THE
OUTLET OF THE CONDENSATE
TRAP (FIGURE 17).
FIGURE 17
11.4.1 DRAIN PIPING
H16.4.1B
Condensate from the outlet of the drain trap assembly must be conveyed to a fl oor drain, sump pit, or, if these
are unavailable, to a condensate pump. If using a condensate pump, be sure that it is approved for furnace
condensate.
DO NOT DRAIN THE CONDENSATE OUTDOORS. DO NOT RUN THE CONDENSATE LINE
THROUGH AREAS WHERE FREEZING MIGHT OCCUR. FREEZING OF CONDENSATE CAN
RESULT IN ERRATIC FURNACE OPERATION AND IN PROPERTY DAMAGE.
CAUTION
! !
A typical confi guration would be to connect the side branch of a 1/2” CPVC tee to the drain trap assembly
outlet, with the end branches oriented vertically (see the following fi gures).
A 1” (25mm) piece of 1/2” CPVC pipe connected to the upper end branch will serve as a vent, which will
prevent the creation of a vapor lock, and serve as an overfl ow in the event that the drain line becomes
blocked. A similarly sized piece of pipe connected to the lower end branch will permit connection to the
condensate outlet with 5/8” ID / 7/8” OD fl exible tubing, or the condensate may be piped entirely in CPVC to
the fl oor drain/sump/condensate pump.
IMPORTANT:
IF AN AIR CONDITIONING EVAPORATOR COIL DRAIN IS TO SHARE THE FURNACE DRAIN
LINE, IT SHOULD BE CONNECTED WITH A TEE FITTING DOWNSTREAM FROM THE
TRAP. DO NOT CONNECT THE EVAPORATOR COIL CONDENSATE DRAIN UPSTREAM OF
THE FURNACE DRAIN TRAP ASSEMBLY.
NOTE
It is recommended that the condensate drain assembly not be cemented to the condensate trap
outlet, if removal of the condensate trap is required in the future. Use a piece of the provided 1/2”
drain hose if removal of the condensate trap is anticipated.
17).