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 330AAV Series B Furnace is available in sizes 40,000
through 133,000 Btuh input capacities.
The design of the upflow gas-fired furnace is A.G.A./C.G.A.
design-certified for use with natural and propane gases and for
installation on combustible wood flooring, in alcoves, attics,
TABLE 1—DIMENSIONS (IN.)
UNIT SIZE
A
D
E
FLUE COLLAR
SHIP. WT
036040
14-3/16
12-9/16
12-11/16
4
124
024060
14-3/16
12-9/16
12-11/16
4
132
036060
14-3/16
12-9/16
12-11/16
4
134
042080
17-1/2
15-7/8
16
4
150
048080
21
19-3/8
19-1/2
4
154
036100
17-1/2
15-7/8
16
4
160
048100
21
19-3/8
19-1/2
4
166
060100
24-1/2
22-7/8
23
4
184
048120
21
19-3/8
19-1/2
5
178
060120
24-1/2
22-7/8
23
5
194
060135
24-1/2
22-7/8
23
5
204
Fig. 1—Dimensional Drawing
A88367
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
FLUE COLLAR
1. Two additional
7
⁄
8
-in. dia holes are located in the top plate.
2. 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, use both side inlets,
a combination of 1 side inlet and the bottom, or the bottom only.
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—
→
