1. Disconnect all power to the furnace. DO NOT TOUCH
THE CONTROL OR ANY WIRE CONNECTED TO THE
CONTROL PRIOR TO DISCHARGING YOUR BODY’S
ELECTROSTATIC CHARGE TO GROUND.
2. Firmly touch a clean, unpainted, metal surface of the
furnace chassis which is close to the control. Tools held in
a person’s hand during grounding will be satisfactorily
discharged.
3. After touching the chassis you may proceed to service the
control or connecting wires as long as you do nothing that
recharges your body with static electricity (for example; DO
NOT move or shuffle your feet, DO NOT touch un-
grounded objects, etc.).
4. If you touch ungrounded objects (recharge your body with
static electricity), firmly touch furnace again before touch-
ing control or wires.
5. Use this procedure for installed and uninstalled (un-
grounded) furnaces.
6. Before removing a new control from its container, dis-
charge your body’s electrostatic charge to ground to protect
the control from damage. If the control is to be installed in
a furnace, follow items 1 through 5 before bringing the
control or yourself into contact with the furnace. Put all
used AND new controls into containers before touching
ungrounded objects.
7. An ESD service kit (available from commercial sources)
may also be used to prevent ESD damage.
INTRODUCTION
The Model 383KAV, Series G Furnace is available in sizes 45,000
through 155,000 Btuh input capacities.
TABLE 1—DIMENSIONS (IN.)
UNIT SIZE
A
D
E
VENT CONN
SHIP. WT (LB)
024045
14-3/16
12-9/16
12-11/16
4
122
036045
14-3/16
12-9/16
12-11/16
4
124
024070
14-3/16
12-9/16
12-11/16
4
132
036070
14-3/16
12-9/16
12-11/16
4
134
042091
17-1/2
15-7/8
16
4
150
048091
21
19-3/8
19-1/2
4
154
036110
17-1/2
15-7/8
16
4
160
048111
21
19-3/8
19-1/2
4
166
060111
24-1/2
22-7/8
23
4
184
048135
21
19-3/8
19-1/2
5
178
060135
24-1/2
22-7/8
23
5
194
060155
24-1/2
22-7/8
23
5
204
Fig. 1—Dimensional Drawing
A98520
A
D
13
⁄
16
″
E
11
⁄
16
″
11
⁄
16
″
28
1
⁄
2
″
39
7
⁄
8
″
24
5
⁄
16
″
11
⁄
16
″
3
″
2
1
⁄
16
″
1
″
12
5
⁄
16
″
5
3
⁄
8
″
5
13
⁄
16
″
2
3
⁄
8
″
AIR INLET
7
⁄
8
-IN. DIA HOLE
POWER ENTRY
7
⁄
8
-IN. DIA
ACCESSORY
1
3
⁄
4
-IN.
DIA HOLE
GAS ENTRY
1
⁄
2
-IN. DIA HOLE
THERMOSTAT
WIRE ENTRY
SIDE INLET
VENT CONN
1. Two additional
7
⁄
8
-in. dia 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.
3. Minimum return-air opening at furnace:
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 23
1
⁄
4
-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.
NOTES:
5
3
⁄
8
″
5
13
⁄
16
″
2
3
⁄
8
″
2
11
⁄
16
″
1
″
2
1
⁄
16
″
19
″
13
⁄
16
″
7
⁄
8
-IN. DIA
POWER ENTRY
AIRFLOW
OUTLET
1
1
⁄
2
-IN.
DIA
R.H. GAS ENTRY
7
⁄
8
-IN. DIA ACCESSORY
1
⁄
2
-IN. DIA THERMOSTAT
WIRE ENTRY
SIDE INLET
14
1
⁄
2
″
1
″
23
1
⁄
4
″
SIDE RETURN
DUCT LOCATION
1
3
⁄
4
″
TYP 1
″
5
⁄
8
″
TYP
—2—
→
