Lennox G51MP?48C?090 User Manual

Page 26
FIGURE 23
TYPICAL AIR INTAKE PIPE CONNECTIONS
HORIZONTAL DIRECT VENT APPLICATIONS
(Horizontal Right−Hand Air Discharge Application Shown)
G51MP−24B−045
G51MP−36B−045
G51MP−36B−070
G51MP−48C−090
G51MP−60C−090
G51MP−48C−110*
G51MP−60C−110*
G51MP−24B−045
G51MP−36B−045
G51MP−36B−070
G51MP−48C−090
G51MP−60C−090
G51MP−48C−110*
G51MP−60C−110*
G51MP−60D−135*
2”*
2”
2”*
2”
2”
G51MP−36C−090
G51MP−36C−090
G51MP−24B−045
G51MP−36B−045
G51MP−36B−070
G51MP−48C−090
G51MP−60C−090
G51MP−36C−090
TRANSITION
REDUCER
2”*
2−1/2”,
3” OR 4”
2−1/2”,
3” OR 4”
*Limit pipe
length to 2" in
G51MP−110
and −135
applications.
2”
G51MP−48C−110
G51MP−60C−110
Follow the next three steps when installing the unit in Non-
Direct Vent applications where combustion air is taken
from indoors and flue gases are discharged outdoors.
FIGURE 24
PLUG
(Must be
glued in
place)
TYPICAL AIR INTAKE PIPE CONNECTIONS
UPFLOW OR HORIZONTAL NON−DIRECT
VENT APPLICATIONS
(Right−Hand Exit in Upflow Application Shown)
6 in. Max.
INTAKE
DEBRIS
SCREEN
(Provided)
NOTE − Debris screen and elbow may be rotated, so that
screen may be positioned to face forward, backward or
downward.
TYPICAL AIR INTAKE PIPE CONNECTIONS
DOWNFLOW NON−DIRECT VENT APPLICATIONS
(Right−Hand Exit in Downflow Applications Shown)
FIGURE 25
PLUG
(Must be
glued in
place)
6 in. Max.
PLUG
(Must be
glued in
place)
Downflow Additive Flloor Base
18 in.
Downflow
Evaporator
Coil
2"
2" SWEEP
ELL
2" SWEEP ELL
INTAKE DEBRIS
SCREEN
(Provided)
INTAKE
DEBRIS
SCREEN
(Provided)
NOTE − Debris screen and sweep ell may be rotated, so that
screen may be positioned to face forward, backward or to the side.

Lennox G51MP?48C?090 Specifications

General

Brand	Lennox
Model	G51MP?48C?090
Category	Furnace
Language	English