Goodman ACVC96 BA Series Service And Troubleshooting page 15

SYSTEM OPERATION
T
HE RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD
RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABINET
EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT FIELD
/ ,
SUPPLIED VENT FLUE PIPING
CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES
INCLUDING CARBON MONOXIDE
COMBUSTION AIR INTAKE OPTIONS: The RF000142
coupling can be secured directly to the furnace intake coupling
if condensation is a concern. If the RF000142 is used on the
combustion air inlet, it must be installed with the arrow pointing
up. It should be noted, the combustion air will actually be
moving in a direction opposite of the arrow on the RF000142
coupling. It must have a field supplied, trapped drain tube
free-draining to proper condensate disposal location. A loop
in the drain tube can serve as a trap. The unused RF000142
drain fitting should be capped. A tee installed in the intake
pipe is also an acceptable method of catching condensation.
It must have a field supplied, trapped drain tube or pipe, free-
draining to proper condensate disposal location. A loop in the
drain tube can serve as a trap. (See Figure 9B)
Non-Direct Vent Installations
A minimum of one 90° elbow should be installed on the combustion
air intake "coupling" to guard against inadvertent blockage.
Alternate Vent/Flue Location
The alternate vent/flue location is the large hole directly in line
with the induced draft blower outlet. To use the alternate vent/
flue location refer to the following steps and the "Alternate
Vent/Flue Location" figure. This option is not available with
counter-flow models.
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.
1. Remove the four screws from the vent pipe flange on top
the furnace.
2. Remove the internal elbow and vent pipe.
3. Cut 2 1/2" from the flange .
4. Remove plastic plug in line with the inducer outlet
5. Install cut end of the flanged section and connect to
inducer with rubber coupling supplied with furnace.
6. Install screws removed in step 1 securing flange to
cabinet.
B
E SURE NOT TO DAMAGE INTERNAL WIRING OR OTHER COMPONENTS
WHEN REINSTALLING COUPLING AND SCREWS
WARNING
. W
AS DAMAGE CAN RESULT IN LEAKS
CAUTION
.
Alternate Combustion Air Provision
(Upflow / Horizontal models only)
HEN THE
When using the alternate venting location, either in
,
a horizontal left side down installation or a vertical
-
installation using down – venting, an alternate com-
bustion air opening can be used. A locating dimple is
,
located on the right side of the furnace cabinet. The
locating dimple is 1 7/8" measured from the front edge
of the cabinet in line with the knock out. To use the
alternate combustion air location:
1. Remove screws and combustion air flange from cabinet.
2. Insert cabinet plug in unused combustion air hole.
3. Drill a pilot hole at the cabinet dimple (size dictated by
knockout tool used).
4. Use a knockout tool to create a 3" diameter hole
5. Install combustion air flange and secure with screws
removed in step one.
6. Install screws removed in step 1 securing flange to
cabinet.
*MVC96/*CVC96 Direct Vent (2 - Pipe) and Non-Direct Vent (1- Pipe)
Pipe Size
MODEL
(4)
(in.)
2
*M V96C0403BN
3
2
*M VC960603BN
3
2
*M VC960803BN
3
2
*M VC960804CN
3
2
*M VC961005CN
3
2
*M VC961005DN
3
2
*M VC961205DN
3
2
*CVC960403BN
3
2
*CVC960603BN
3
2
*CVC960804CN
3
2
*CVC961005CN
3
2
*CVC961205DN
3
Non-Direct Vent (Single Pipe) Piping
Non-direct vent installations require only a vent/flue pipe. The
vent pipe can be run horizontally with an exit through the side
of the building or run vertically with an exit through the roof
of the building. The vent can also be run through an existing
unused chimney; however, it must extend a minimum of 12
inches above the top of the chimney. The space between the
vent pipe and the chimney must be closed with a weather-
tight, corrosion-resistant flashing.
Although non-direct vent installations do not require a
combustion air intake pipe, a minimum of one 90° elbow
should be attached to the furnace's combustion air intake if:
an upright installation uses the standard intake location, or a
horizontal installation uses the alternate air intake location.
This elbow will guard against inadvertent blockage of the air
intake.
Maximum Allowable Length of Vent/Flue Pipe
(3) (5)
Number of Elbows
1 2 3 4 5
120 115 110 105 100
134 127 120 113 106
100 95 90 85 80
151 144 137 130 123
45 40 35 30 25
113 106 99 92 85
70 65 60 55 50
89 82 75 68 61
N/A N/A N/A N/A N/A
120 113 106 99 92
N/A N/A N/A N/A N/A
151 144 137 130 123
N/A N/A N/A N/A N/A
151 144 137 130 123
120 115 110 105 100
185 178 171 164 157
85 80 75 70 65
168 161 154 147 140
40 35 30 25 20
120 113 106 99 92
N/A N/A N/A N/A N/A
113 106 99 92 85
N/A N/A N/A N/A N/A
151 144 137 130 123
(6)
6 7 8
95 90 85
99 92 85
75 70 65
116 109 102
20 15 10
78 71 64
45 N/A N/A
54 47 40
N/A N/A N/A
85 78 71
N/A N/A N/A
116 109 102
N/A N/A N/A
116 109 102
95 N/A N/A
150 143 136
60 55 50
133 126 119
15 10 5
85 78 71
N/A N/A N/A
78 71 64
N/A N/A N/A
116 109 102
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