3
2-7/16"
1-1/8"
28-7/8"
25-1/4"
22-9/16"
JUNCTION BOX
LOCATION
7/8" DIA
ACCESSORY
1/2" DIA THERMOSTAT
WIRE ENTRY
3-15/16"
LEFT HAND GAS
ENTRY
33-5/16"
24-7/8"
5-1/2"
7/8" DIA. ACCESSORY
11/16"
21-5/8"
BOTTOM INLET
1-11/16"
13/16"
11/16"
4-13/16"
AIRFLOW
19"
OUTLET
13/16"
11/16"
8-9/16"
VENT OUTLET
5 PLACES (TYP)
3-3/4"
1-3/4" DIA.RIGHT HAND
GAS ENTRY
7/8" DIA. K.O. WIRE ENTRY
SIDE INLET
14-7/8"
7/8" DIA. ACCESSORY
1-1/4"
1"
22-1/16"
A
D
F
E
(FLUE COLLAR)
5-15/16"
24"
CASING
1-5/16"
1/2" DIA. K.O.THERMOSTAT
WIRE ENTRY
ALTERNATE
JUNCTION BOX
LOCATIONS (TYP)
26-1/8"
1-1/2"
7-3/4"
9-5/8"
11-1/2"
5-1/2"
NOTES:
1. Two additional 7/8-in. diameter holes are located in the top plate.
2. Minimum return-air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer’s recommendations for equivalent diameters.
a. For 800 CFM-16-in. round or 14 1/2 x 12-in. rectangle.
b. For 1200 CFM-20-in. round or 14 1/2 x 19 1/2-in. rectangle.
c. For 1600 CFM-22-in. round or 14 1/2 x 22-in. rectangle.
d. 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.
A04037
Fig. 1
---
Dimensional Drawing
13. These furnaces SHALL NOT be installed directly on car-
peting, tile, or any other combustible material other than
wood flooring. In downflow installations, factory access-
ory floor base MUST be used when installed on combust-
ible materials and wood flooring. Special base is not re-
quired when this furnace is installed on manufacturer’s
Coil Assembly Part No. CAPV, CAPMP, or CNPVP, or
when Coil Box Part No. KCAKC is used. See Fig. 2 for
clearance to combustible construction information.
INTRODUCTION
Series 120/C 4--way multipoise Category I fan--assisted furnace is
CSA design--certified. A Category I fan--assisted furnace is an
appliance equipped with an integral mechanical means to either
draw or force products of combustion through the combustion
chamber and/or heat exchanger. The furnace is factory--shipped
for use with natural gas. This furnace is not approved for
installation in mobile homes, recreational vehicles, or outdoors.
This furnace is designed for minimum continuous return--air
temperature of 60
_
F db or intermittent operation down to 55
_
F
db such as when used with a night setback thermostat. Return--air
temperature must not exceed 85
_
F db. Failure to follow these
return--air temperature limits may affect reliability of heat
exchangers, motors, and controls. (See Fig. 2.)
60
A02055
Fig. 2
---
Return Air Temperature
PG
8J
/M