Typical Exhaust Pipe Connections And Condensate Trap Installation - Lennox G71MPP-36B-070 Installation Instructions Manual

PLUG
t
VENT PLUG
(Must be
glued in
place)
PLUG
TYPICAL EXHAUST PIPE CONNECTIONS AND CONDENSATE TRAP INSTALLATION
IN UPFLOW OR DOWNFLOW DIRECT VENT APPLICATIONS
(Right-Hand Exit in Upflow Application Shown) 45°
MAX
2-1/2",
3", OR
4"
TRANSiTiON
G71 MPP-070,
2" or -090 with SIDE ViEW
2-1/2", 3", or4"
vent pipe
CONDENSATE
TRAP
(Must be installed
on same side as
exhaust piping)
"2" diameter street elbow provided.
**3" to 2" diameter reducing elbow provided.
*** Max 2" pipe length between reducing
elbow and transition when 4" pipe is used.
TYPICAL EXHAUST PIPE CONNECTIONS
HORIZONTAL DIRECT VENT APPLICATIONS
(Horizontal Right-Hand Air Discharge Application Shown)
*2" maximum length -36B-070
-36C-090
for -135 only. -60C-090
.60C.110"
.60D-135"
TRANSiTiON
DO NOT transition from
smaller to larger pipe
size in horizontal runs.
2"
-36B-070
,,1"36C'090
-60C-090
IO
45 °
MAX
2-1/2", p:>_]
3":4OR _ TRANSmON
(use only if 4"
TRANSITION _ pipe is
required)
Ft /2 ....
G71MPP-110 with
2-1/2", 3", OR 4" G71MPP-135 with
vent pipe 3" OR 4" vent pipe
FIGURE 19
Intake Piping
The G71MPP furnace may be installed only in direct vent
applications,
The G71MPP unit is designed for either left-side or right-
side air intake connections in either upflow or downflow ap-
plications. In horizontal applications, air intake must be
brought in through the top, Intake air piping is independent
of exhaust piping,
FIGURE 20
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