7
58MCB
1
1
⁄4"
1"
13
⁄16"
5
⁄8"
5
⁄16"
1"
39 
7
⁄8
11
⁄16"
7
⁄16"
14 
1
⁄2"
TYP
17 
5
⁄16"
24 
1
⁄2"
27 
9
⁄16"
TYP
27 
5
⁄8"
29 
11
⁄16"
TYP
30 
13
⁄16"
32 
5
⁄8"
TYP
33 
1
⁄4"
TYP
CONDENSAT E
DRAIN TRAP
LOCATION
(ALTERNATE
UPFLOW)
7
⁄8-IN. DIA
ACCESSORY
POWER ENTRY
7
⁄8-IN. DIA
POWER CONN
CONDENSATE DRAIN
TRAP LOCATION
(DOWNFLOW &
HORIZONTAL LEFT)
26 
15
⁄16"
24 
1
⁄2"
22 
5
⁄16"
2-IN. COMBUSTION-
AIR CONN
1
⁄2-IN. DIA
GAS CONN
2-IN. VENT CONN
1
⁄2-IN. DIA THERMOSTAT
ENTRY
22 
11
⁄16"
SIDE INLET
23 
1
⁄4" TYP
SIDE INLET
OUTLET
26 
15
⁄16"
28 
1
⁄2"
22 
5
⁄16"
19"
22 
1
⁄4" TYP
24 
3
⁄16"
BOTTOM INLET
18 
1
⁄4"
22 
11
⁄16"
2-IN. COMBUSTION-
AIR CONN
1
⁄2-IN. DIA
GAS CONN
7
⁄8-IN. DIA
POWER CONN
1
⁄2-IN. DIA
THERMOSTAT  E N TRY
2-IN. VENT CONN
DIMPLE LOCATORS
FOR HORIZONTAL
HANGING
SIDE INLET
9 
7
⁄16"
TYP
26 
15
⁄16" TYP
CONDENSAT E
DRAIN LOCATION
(UPFLOW)
30 
1
⁄2"
9
⁄16"
TYP
CONDENSAT E
DRAIN LOCATION
(UPFLOW)
E
INLET
11
/16"
11
/16"
D
13
/16"
13
/16"
OUTLET
A
AIRFLOW
26 
1
⁄4"
26 
1
⁄4"
CONDENSATE DRAIN
TRAP LOCATION
(DOWNFLOW &
HORIZONTAL RIGHT)
OR ALTERNATE
1
⁄2
-IN. DIA GAS CONN
NOTES:   Minimum return-air opening at furnace, based on metal
 duct. If flex duct is used, see flex duct manufacturer's
 recommendation for equivalent diameters:
 1. For 800 CFM   16-in. round or 14-
1
/2 X 12-in. rectangle.
 2. For 1200 CFM   20-in. round or 14-
1
/2 X 19-
1
/2 in. rectangle.
 3. For 1600 CFM   22-in. round or 14-
1
/2 X 23-
1
/4 in. rectangle.
 4. For airflow requirements above 1800 CFM, see Air Delivery
 Table in Product Data literature for specific use of single side
 inlets. The use of both side inlets, a combination of 1 side and
 the bottom, or the bottom only will ensure adequate return-air
 openings for airflow requirements above 1800 CFM at 0.5î W.C. ESP.
 
Dimensions
 
A05105
 
DIMENSIONS (In.)
 
UNIT SIZE A D E
040-08
 
17-1/2 15-7/8 16
 
040-12
 
17-1/2 15-7/8 16
 
060-08
 
17-1/2 15-7/8 16
 
060-12
 
17-1/2 15-7/8 16
 
060-16
 
17-1/2 15-7/8 16
 
080-12
 
17-1/2 15-7/8 16
 
080-16
 
17-1/2 15-7/8 16
 
080-20
 
21 19-3/8 19-1/2
 
100-16
 
21 19-3/8 19-1/2
 
100-20
 
21 19-3/8 19-1/2
 
120-20
 
24-1/2 22-7/8 23
 
140-20 24-1/2 22-7/8 23