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Dimensions and Clearances (*8MPN/L Models)
TOP
LEFT SIDE
• Plugged starting
I hole to cut side
131/4 _¢t opening
21814
17/8/ 26518
5113
5f__ _ _1
-- 3314
7/8
1
47/ 11/2
_E
"24"Min.
--A_
-- B --
38 FRONT
®
MINIMUM CLEARANCES TO COMBUSTIBLE
MATERIALS FOR ALL UNITS
REAR 0
FRONT (combustion air openings 3"
in furnace and structure)
Required For Service *24"
ALL SIDES Of SUPPLY PLENUM 1"
SIDES 0
VENT
Single-Wall Vent 6"
Type B-1 Double Wall Vent 1"
TOP OF FURNACE 1"
"30" clearancerecommendedforfurnaceremoval.
Horizontalposition:Linecontactispermissibleonlybetweenlines
formedby intersectionsof topandtwo sidesoffurnacejacket, and
buildingjoists, studsorframing.
28112
RIGHT SIDE
2--
L 1
37
/41I
29,1121
3_
11751
Drawing is representative some models may vary
I_ 41116
DIMENSIONS IN INCHES
J
H
13114
DIMENSIONAL INFORMATION
Furnace I Cabinet I Top Bottom I ReturnAir
Mode, I;I 2 _4 F C D I Opening
*8MPN/LOSOB12 6 1318 12518 H
*8MPN/LO75B12
*8MPN/L075F16
*8MPN100F14 1911817518 73/4 21/8 14314I J
*8MPN/L10OF20
I
*8MPN/LIOOJ20
*8MPN/L125J208MPN150J20223/4211/4 91/2 115116 183/4 J
* Denotes Brand
11/2
L
47/8 l 13/4
265/_
NOTE: Evaporator "A" coil drain pan dimensions may
vary from furnace duct opening size. Always consult
evaporator specifications for duct size requirements.
Furnace is designed for bottom return or side return.
Return air through back of furnace is NOT allowed.
T
17/8
40
Plugged starting hole to
cut side duct opening
Installation Positions
This furnace can be installed in an upflow, horizontal (either left or
right) or downflow airflow position. DO NOT install this furnace on
its back. For the upflow position, the return air ductwork can be at-
tached to either the left or right side panel and/or the bottom. For
horizontal and downflow positions, the return air ductwork must be
attached to the bottom. The return air ductwork must never be at-
tached to the back of the furnace.
Furnace Installation
Inspect the rating plate to be certain the model number begins with
"N8MP" or "*8MP". This identifies the unit as a multi-position fur-
nace and can be Installed in a Upflow, Horizontal Right, Horizontal
Left or Downflow position.
Dentoes Brand (C, H, T)
Upflow
No modifications are required for upflow installation. (See
Figure 3)
441 O1 261302