GMEC96 Installation Manual

16
     
elbows should be considered equivalent to one 90 deg. elbow.
6. One 90° elbow should be secured to the combustion air intake
connection.
C
U
T
H
E
R
E


T
HE
RUBBER
ELBOW
IS
NOT
DESIGNED
TO
SUPPORT
A
LOAD
. W
HEN
THE
RUBBER
ELBOW
IS
MOUNTED
EXTERNALLY
TO
THE
FURNACE
CABINET
,
EXTREME
CARE
MUST
BE
TAKEN
TO
ADEQUATELY
SUPPORT
FIELD
-
SUPPLIED
VENT
/
FLUE
PIPING
,
AS
DAMAGE
CAN
RESULT
IN
LEAKS
CAUSING
BODILY
INJURY
OR
DEATH
DUE
TO
EXPOSURE
TO
FLUE
GASES
,
INCLUDING
CARBON
MONOXIDE
WARNING
1 2 3 4 5 6 7 8
2 75 70 65 60 55 50 45 40
3 114 107 100 93 86 79 72 65
2 75 70 65 60 55 50 45 40
3 114 107 100 93 86 79 72 65
2 100 95 90 85 80 75 70 65
3 168 161 154 147 140 133 126 119
2 50 45 40 35 30 25 20 15
3 143 136 129 122 115 108 101 94
2 60 55 50 45 40 35 30 25
3 113 106 99 92 85 78 71 64
2 60 55 50 45 40 35 30 25
3 120 113 106 99 92 85 78 71
2 45 40 35 30 25 20 15 10
3 103 96 89 82 75 68 61 54
2 45 40 35 30 25 20 15 10
3 151 144 137 130 123 116 109 102
*MEC961205DN
3 185 178 171 164 157 150 143 136
2 100 95 90 85 80 75 70 65
3 110 103 96 89 82 75 68 61
2 45 40 35 30 25 20 15 10
3 110 103 96 89 82 75 68 61
2 35 30 25 20 15 10 5 NA
3 103 96 89 82 75 68 61 54
2 45 40 35 30 25 20 15 10
3 110 103 96 89 82 75 68 61



M ODEL





*MEC960303AN
&
*MEC960403AN
*MEC960603AN
*MEC960302BN
&
*MEC960402BN
*MEC960603BN^
*MEC960803BN
*MEC960804CN
*MEC961004CN
*MEC961005CN
*CEC960403BN
*CEC960603BN
*CEC960803BN
*CEC961005CN
^ *MEC960603BN-add 45' of 2" pipe for upflow.
2 . 5 p i p e m a y b e u s e d i n s t e a d o f 2 p i p e .
For installaons at or above 7,000 altude use 3” venng
(and combuson air pipe if applicable)
non-Direct Vent installations
A minimum of one 90° elbow should be installed on the combus-
tion air intake “coupling” to guard against inadvertent blockage.


hole directly in line with the induced draft blower outlet. To


NOTE: In the horizontal left installation position, a means
of condensate collection must be provided to keep vent
pipe condensate from entering the draft inducer housing.
If the vent drain elbow is eliminated from the installation,
an RF000142 kit must be used.
 
top the furnace.
2. Remove the internal elbow and vent pipe

4. Remove plastic plug in line with the inducer outlet

inducer with rubber coupling supplied with furnace.

cabinet.
Insert flange. Cut 2 ½” long.
R 000142F
Figure 9

1. Maximum allowable limits listed on individual lengths for inlet and

 
and one elbow/tee.
 -
termining the number of elbows in the piping system.
4. 2 1/2” or 3” diameter pipe can be used in place of 2” diameter
pipe.