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331JAV
PLUS 80 TWO-SPEED
DOWNFLOW
INDUCED-COMBUSTION FURNACE
Sizes 060 thru 100
Series B
The Plus 80 Two-Speed Downflow Furnace achieves 80 percent
Annual Fuel Utilization Efficiency (AFUE) rating. The benefits of
2-speed operation in reducing sound and improving comfort put
it in a class well ahead of the competition. The Plus 80 TwoSpeed has the kind of overall performance needed in today’s
homes. All models are GAMA efficiency rating certified and certified for use in California Air Quality Management Districts.
FEATURES
EFFICIENCY — The Plus 80 Two-Speed Induced-Combustion
Gas Furnace provides the efficiency customers want with 80.0%
AFUE.
HOT SURFACE IGNITION — No pilot to waste gas with this
field-proven ignition system.
ALUMINIZED HEAT EXCHANGER — The patented 4-pass
heat exchanger is made of aluminized steel and backed by a
20-year Limited Warranty.
INTELLIGENT CONTROL — The Plus 80 Two-Speed has an intelligent control that monitors the operation of the furnace. This
control also has a component-test feature that enables the servicing technician to verify operation of the control; the high and
low inducer; the hot surface ignitor; and high-, medium-, and lowspeed blower operation. The control features a 3-amp fuse that
protects the transformer and control. We guarantee the reliability
of the control with a 3-year Limited Warranty.
40-IN. HEIGHT — The Plus 80 Two-Speed cabinet height is only
40 in. This simplifies installation in alcoves, attics, basements
(ideal for short basement), closets, and utility rooms, especially
with a taller high-efficiency cooling coil.
PREPAINTED CABINET — The Plus 80 Two-Speed uses prepainted sheet metal for the cabinet. This is the same high-quality
finish found on refrigerators and other appliances today. We ensure its durability by using a galvanized steel substrate to provide superior rust protection.
PATENTED DRAFT SAFEGUARD — Our induced-combustion
furnace has a patented draft safeguard switch. The safeguard
switch will stop furnace operation if the vent system becomes
blocked or is not operating properly. An exclusive with the Plus
80 Two-Speed furnace.
EASY INSTALLATION — The Plus 80 Two-Speed has many
features that make installation easier: left or right gas and electrical connections, heating and cooling blower speed selector,
matching coil sizes, accessory low-voltage connections, and
many more.
QUIET OPERATION — A soft mount inducer assembly and 2stage slow-opening gas valve reduce sound level. The 2-speed
operation capability minimizes furnace and air noise for total
home comfort.
Form No. PDS 331J.60.3
28 1⁄2″
VENT CONNECTION
20″
13⁄16″
13⁄16″
INLET
D
1⁄2″ DIA
2″
4 3⁄16″
THERMOSTAT
WIRE ENTRY
7⁄8″ DIA
ACCESSORY
2 15⁄16″
7⁄8″ DIA HOLE
POWER ENTRY
39 7⁄8″
7⁄8″ DIA
9 1⁄8″
ACCESSORY
1 3⁄4″ DIA HOLE
GAS ENTRY
16 1⁄16″
10 1⁄4″
1 1⁄16″
2 1⁄8″
8 1⁄4″
11⁄16″
OUTLET
11⁄16″
1 1⁄2″ DIA
R.H. GAS ENTRY
19″
NOTE: ADDITIONAL 7⁄8″ DIA K.O. ARE
LOCATED IN THE TOP PLATE
AND BOTTOM PLATE
7⁄8″ DIA
ACCESSORY
13 5 ⁄16″
10 1⁄4″
11⁄16″
E
A
1 1⁄16″
2 1⁄8″
AIRFLOW
A95193
DIMENSIONS (In.)
UNIT SIZE
A
D
E
VENT CONN (Dia)
036060
14-3/16
12-9/16
12-11/16
4
SHIPPING WEIGHT (Lb)
145
048080
17-1/2
15-7/8
16
4
154
060100
21
19-3/8
19-1/2
4
181
ACCESSORY DOWNFLOW SUBBASE
LOCATING
TAB
1 1⁄4″ TYP
PLENUM
OPENING
B
D
1
2
3
A
4
LOCATING
TAB
4
3
2
C
FACTORY-SUPPLIED
FIELD-INSTALLED
INSULATION
1
A88207
Disassembled
A88206
Assembled
DIMENSIONAL DATA (In.)
PLENUM OPENING*
FURNACE WIDTH
A
14-3/16
17-1/2
21
FRAMED FLOOR HOLE
D
HOLE NO. FOR
WIDTH ADJUSTMENT
B
C
11-13/16
19
13-7/16
20-3/8
4
15-1/8
19
16-3/4
20-3/8
3
18-5/8
19
20-1/4
20-3/8
2
* The plenum should be constructed 1/4 in. smaller in width and depth than the plenum dimensions shown above.
MEETS DOE RESIDENTIAL CONSERVATION
SERVICES PROGRAM STANDARDS.
®
ama
Before purchasing this appliance, read important
energy cost and efficiency information available
from your retailer.
CANADIAN GAS ASSOCIATION
A PP R O VED
R
—2—
SPECIFICATIONS
UNIT SIZE
036060
048080
060100
63,000
40,500
51,000
33,000
80.0
30—60
15—45
0.10/0.50
1195/1030
1195
84,000
54,000
69,000
44,000
80.0
30—60
15—45
0.15/0.50
1355/1170
1580
105,000
67,500
86,000
55,000
80.0
35—65
20—50
0.20/0.50
1735/1500
1950
10.5
35
115—60—1
104—127
14.2
26
RATINGS AND PERFORMANCE
Gas Input (Btuh)*
High Stage
Low Stage
Output Capacity (Btuh)†
High Stage
Nonweatherized ICS
Low Stage
AFUE†
Nonweatherized ICS
Certified Temperature Rise
High Stage
Low Stage
Range (°F)
Certified External Static Pressure
Heat/Cool
Airflow CFM
Heating High/Low
Cooling
ELECTRICAL
Unit Volts— Hertz— Phase
Operating Voltage Range
Min—Max
Maximum Unit Amps
Maximum Wire Length (Measured 1 Way)
Ft
Minimum Wire Size
Maximum Fuse Size
Transformer (24v)
External Control
Heating
Power Available
Cooling
Air Conditioning Blower Relay
14
15
17.9
32
12
20
40va
19va
35va
Standard
CONTROLS
Limit Control
Heating Blower Control
Inducer
Burners (Monoport)
Gas Connection Size
SPST (Auto-Reset)
Solid-State Time Operation
2-Speed
4
1/2-in. NPT
3
5
GAS CONTROLS
2-Stage Redundant Gas Valve
Min Inlet Pressure (In. wc)
Max Inlet Pressure (In. wc)
Ignition Device
White-Rodgers
4.5 (Natural Gas)
13.6 (Natural Gas)
Hot Surface
BLOWER DATA
Direct-Drive Motor HP (PSC)
Motor Full Load Amps
RPM (Nominal)—Speeds
Blower Wheel Diameter x Width (In.)
Filter Size (In.)—Permanent Washable (Supplied)
1/3
5.1
1/2
7.4
1075—5
10 x 8
10 x 6
(2) 14 x 20 x 1
3/4
11.0
10 x 6
(2) 16 x 20 x 1
DEALER-INSTALLED ACCESSORIES
Downflow Subbase**
High-Altitude Pressure Switch Kit‡
Gas Conversion Kit—Natural-to-Propane
Gas Conversion Kit—Propane-to-Natural
KGASB0201ALL
KGAH5601PSW
KGANP24012SP
KGAPN20012SP
* Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 ft, reduce ratings 4% for each 1000 ft above sea level. Refer to National
Fuel Gas Code Table F4. In Canada, derate the unit 10% for elevations 2000 ft to 4500 ft above sea level.
† Capacity in accordance with U.S. Government DOE test procedures.
‡ 5500 ft and higher above sea level.
** Required for installation on combustible floors when no coil box is used, or when any coil box other than a Bryant cased coil is used.
ICS—Isolated Combustion System
CONTROLS—THERMOSTATS AND ZONING
THERMOSTAT—NON-PROGRAMMABLE
THERMOSTAT-PROGRAMMABLE
For Use with 1-Speed Air Conditioner—TSTATBHNAC01-A
For use with 2-Speed Air Conditioner—TSTATBHN2S01-A
For Use with 2-Speed Heat Pump—TSTATBHN2S01-A
For Use with 1-Speed Air Conditioner—TSTATBHPAC01-A
For Use with 2-Speed Air Conditioner—TSTATBHP2S01-A
For Use with 1-Speed Heat Pump—TSTATBHPDF01-A
For Use with 2-Speed Heat Pump—TSTATBHP2S01-A or TSTATBHPDF01-A
THERMIDISTAT™ —PROGRAMMABLE THERMOSTAT
with Humidity Control
TSTATBHPRH01-A
ZONING—2-ZONE
ZONEBB2KIT01, ZONEKIT2ZBDP
ZONING—4-ZONE
ZONEBB4KIT01
—3—
AIR DELIVERY— CFM (With Filter)
UNIT
SIZE
BLOWER
MOTOR HP
036060
1/3 PSC
048080
1/2 PSC
060100
3/4 PSC
EXTERNAL STATIC PRESSURE (IN. WC)
SPEED
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
High
Med-High
Med
Med-Low
Low
High
Med-High
Med
Med-Low
Low
High
Med-High
Med
Med-Low
Low
1435
1195
1030
900
705
1855
1595
1355
1170
880
2235
1995
1735
1510
1145
1385
1165
1020
890
700
1765
1570
1345
1170
865
2185
1970
1735
1500
1140
1320
1145
1010
875
690
1710
1530
1305
1140
855
2110
1915
1675
1485
1125
1265
1105
985
855
675
1665
1485
1270
1110
830
2030
1845
1625
1455
1115
1195
1070
955
835
655
1580
1410
1220
1075
805
1950
1765
1565
1400
1100
1145
1015
915
795
625
1570
1355
1170
1025
755
1835
1680
1480
1320
1085
1080
955
860
755
580
1410
1280
1110
965
720
1700
1545
1370
1230
1045
1000
885
790
690
525
1310
1200
1025
890
655
1540
1415
1265
1130
990
INSTALLATION
This unit is certified for downflow installation only. See Installation Manual for
important installation instructions.
MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION
TOP / PLENUM
This forced air furnace is equipped for
This furnace is approved for DOWNFLOW installations only.
use with natural gas at altitudes 0 10,000 ft
(0-3,050m).
1"
An accessory kit, supplied by the
manufacturer, shall be used to convert to
propane gas use or may be required for
some natural gas applications.
This furnace is for indoor installation in
a building constructed on site.
0"
1" #
BA
This furnace may be installed on
E
CK
D
SI
combustible flooring in alcove or closet at
E
AC
minimum clearance from combustible
RN
U
F
material.
T
ON
This furnace may be used with a Type
FR
SE
B-1 Vent and may be vented in common
RV
with other gas-fired appliances.
IC
DE
FR
ON
1" #
##
30"
MIN
BOTTOM
Ø
†
Clearance in inches.
E
T
Vent Clearance to combustibles:
For Single Wall vents 6 inches (6 po).
For Type B-1 vent type 1 inch (1 po).
322567-101 REV. E (LIT)
SI
1"
†
For installation on non-combustible
floors only. For installation on
combustible flooring only when
installed on special base, Part No.
KGASB0201ALL, Coil Assembly,
Part No. CD5 or CK5, or Coil
Casing, Part No. KCAKC.
# For furnaces wider than 14.25
inches (362mm) may be 0 inches.
Ø 18 inches front clearance required
for alcove.
## For single wall vent type 6 inches.
A97620
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
UNIT MUST BE INSTALLED IN ACCORDANCE
WITH INSTALLATION INSTRUCTIONS
Cancels: PDS 331J.60.2B
© 1998 Bryant Heating & Cooling Systems, 7310 W. Morris St.
Indpls., IN 46231
—4—
PRINTED IN U.S.A.
Catalog No. 5233-101
1-98
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