Concord 97G2V Two Stage Variable Speed Gas Furnace Owner’s Manual

June 4, 2024
CONCORD

97G2V
PRODUCT SPECIFICATIONS
TWO STAGE VARIABLE SPEED
GAS FURNACE FORM NO. 97G2V-100 (10/2023)

97G2V Two Stage Variable Speed Gas Furnace

CONFIGURATIONS

  • Upflow / Horizontal
  • Downflow

VENTING

  • 2-speed induced draft motor with stainless steel shaft, steel ball bearings, and fan cooled for long life
  • Vent materials for Canadian applications must comply with ULC S636
  • Certified for direct vent (2-pipe) or non-direct (1-pipe) applications
  • Direct vent refers to a combustion air supply intake pipe installed in conjunction with flue gas vent pipe.

INSTALLATION FEATURES

  • Left or right gas and electric entry
  • Zero step horizontal conversion
  • Removable floor base (upflow/horizontal units) for bottom return air
  • All models comply with California’s South Coast Air Quality Management district Low NOx requirements

HEAT EXCHANGER DESIGN

  • Aluminized steel primary heat exchanger with crimped nonwelded construction
  • AL29-4C Stainless steel secondary heat exchanger
  • Non-welded crimped S-curve primary heat exchanger design for maximum durability

BURNERS

  • Aluminized steel in shot burners for smooth ignition
  • Isolated burner enclosure for quiet operation

CABINET CONSTRUCTION

  • Compact 33″ height
  • Standardized widths for easy coil fit
  • Unitized construction for cabinet integrity
  • Heat exchanger compartment is insulated to increase efficiency and reduce sound levels
  • Baked on pre painted steel cabinet finish

AIR DELIVERY SYSTEM

  • Efficient ECM variable speed blower motor
  • Motor features “soft start” and “soft stop” for quiet operation
  • Active and passive dehumidification feature
  • Easily removable slide-out blower design
  • Dynamically balanced blower wheel with resilient motor mounts for smooth and quiet operation

CONTROLS

  • Two stage gas valve
  • Integrated ignition and fan control
  • System Sentry™ control retains last five (5) fault codes with push button memory recall, regardless of power interruption
  • Hot surface ignition system uses silicon nitride ignitor
  • Control features 120 volt electronic air cleaner and humidifier terminals
  • Control circuit is fuse protected
  • Color coded control wiring
  • Compatible with single or two stage thermostats for heating.
  • Two stage thermostat is recommended when installed with two stage cooling unit.

WARRANTY

10 year limited parts warranty / lifetime heat exchanger warranty available. See limited warranty document for details.
California Only
If installed in South Coast Air Quality Management District (SCAQMD) only: This furnace does not meet the SCAQMD Rule 1111 NOx emission limit (14 ng/J), and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.
If installed in San Joaquin Valley Air Pollution Control District (SJVAPCD) only: This furnace does not meet the SJVAPCD Rule 4905 NOx emission limit (14 ng/J), and thus is subject to a mitigation fee of up to $450.

MODEL NUMBER GUIDE

PHYSICAL AND ELECTRICAL DATA

| M ODEL| 1ST STAGE| 2ND STAGE| AFUE (ICUS)| NOM. COOLING CAPACITY (TONS)| GAS INLET (IN.)| VOLTS/ HZ/ PHASE| MIN. TIME DELAY BREAKER OR FUSE| NOMINAL F.L.A.| TRANS. (V.A.)| APPROX. WEIGHT (LBS.)
---|---|---|---|---|---|---|---|---|---|---|---
INPUT (BTUH)| OUTPUT (BTUH)| INPUT (BTUH)| OUTPUT (BTUH)
UPFLOW/HORIZONTAL| 97G2UH045BV12| 29,000| 28,000| 44,000| 43,000| 97.0| 3| 1/2| 120-60-1| 15| 7.7| 40| 120
97G2UH070BV12| 43,000| 42,000| 66,000| 64,000| 97.0| 3| 1/2| 120-60-1| 15| 7.7| 40| 124
97G2UH090CV12| 57,000| 56,000| 88,000| 85,000| 97.0| 3| 1/2| 120-60-1| 15| 7.7| 40| 144
97G2UH090CV20| 57,000| 56,000| 88,000| 86,000| 97.0| 5| 1/2| 120-60-1| 20| 12.8| 40| 153
97G2UH110CV20| 72,000| 70,000| 110,000| 107,000| 97.0| 4| 1/2| 120-60-1| 15| 12.8| 40| 159
97G2UH135DV20| 86,000| 84,000| 132,000| 127,000| 97.0| 5| 1/2| 120-60-1| 20| 12.8| 40| 178
DOWNFLOW| 97G2DF070BV16| 43,000| 42,000| 66,000| 64,000| 97.0| 4| 1/2| 120-60-1| 15| 10.1| 40| 136
97G2DF090CV20| 57,000| 56,000| 88,000| 86,000| 97.0| 5| 1/2| 120-60-1| 20| 12.8| 40| 152
97G2DF110CV20| 72,000| 70,000| 110,000| 108,000| 97.0| 5| 1/2| 120-60-1| 20| 12.8| 40| 163

Note: For vent length and clearances to combustibles, please reference installation instructions.
FILTER REQUIREMENT DATA

Airflow Descriptor Disposable Filters Cleanable Filters
Minimum Area (sq. in.) Minimum Area (sq.in.)
12 576 288
16 768 384
20 960 480
  1. The Airflow Descriptor is the two digits following the “B” , “C”, or “D” in the model number; e.g. “20” is the Airflow Descriptor.
  2. Areas shown for permanent filters are based on filters rated at 600 feet per minute face velocity.

BLOWER PERFORMANCE DATA – UPFLOW / HORIZONTAL

| MODEL| MOTOR SIZE (HP)| BLOWER SIZE| HEATING TEMP. RISE (°F)| HEATING CFM @ .10″ .80″ W.C.| COOLING STAGE| COOLING CFM @ .10″ .80″ W.C.| SPEED ADJUST.
---|---|---|---|---|---|---|---|---
SETTING “D”| SETTING “C”| SETTING “B”| SETTING “A”| SETTING “D”| SETTING “C”| SETTING “B”| SETTING “A”
UPFLOW / HORIZONTAL| 97G2UH045BV12| 1/2| 10×9| 35-65 High Fire| 745| 875| 990| 1005| 2nd Stage| 905| 1075| 1210| 1370| +
685| 765| 895| 910| 815| 980| 1120| 1255| Norm
610| 695| 785| 810| 720| 885| 1020| 1135| –
20-50 Low Fire| 685| 765| 895| 910| 1st Stage| 595| 760| 865| 980| +
620| 705| 800| 820| 540| 660| 785| 890| Norm
545| 625| 715| 725| 485| 600| 695| 790| –
97G2UH070BV12| 1/2| 10×9| 50-80 High Fire| 965| 1060| 1130| 1255| 2nd Stage| 860| 1060| 1215| 1365| +
880| 960| 990| 1140| 810| 960| 1130| 1265| Norm
810| 840| 890| 1030| 705| 840| 1005| 1140| –
25-55 Low Fire| 940| 990| 1070| 1195| 1st Stage| 600| 740| 840| 970| +
830| 895| 965| 1100| 555| 665| 770| 855| Norm
755| 825| 840| 975| 500| 600| 680| 790| –
97G2UH090CV12| 1/2| 10×9| 60-90 High Fire| 1060| 1135| 1240| 1315| 2nd Stage| 875| 1040| 1210| 1360| +
960| 1040| 1120| 1199| 800| 945| 1100| 1245| Norm
830| 935| 980| 1084| 720| 840| 970| 1115| –
30-60 Low Fire| 960| 1040| 1120| 1206| 1st Stage| 625| 710| 830| 950| +
875| 945| 995| 1100| 565| 670| 760| 860| Norm
790| 840| 920| 950| 520| 610| 685| 785| –
97G2UH090CV20| 1| 11×11| 40-70 High Fire| 1450| 1565| 1725| 1865| 2nd Stage| 1385| 1595| 1820| 2020| +
1310| 1450| 1585| 1690| 1225| 1465| 1645| 1885| Norm
1155| 1305| 1450| 1545| 1065| 1320| 1504| 1675| –
25-55 Low Fire| 1120| 1265| 1420| 1520| 1st Stage| 935| 1055| 1275| 1465| +
965| 1120| 1285| 1395| 835| 980| 1120| 1335| Norm
865| 950| 1120| 1235| 740| 870| 1010| 1150| –
97G2UH110CV20| 1| 11×11| 45-75 High Fire| 1560| 1760| 1905| 1955| 2nd Stage| 1310| 1560| 1745| 1955| +
1415| 1610| 1740| 1795| 1220| 1405| 1570| 1795| Norm
1285| 1485| 1560| 1635| 1075| 1270| 1430| 1635| –
35-65 Low Fire| 1155| 1325| 1420| 1500| 1st Stage| 935| 1065| 1245| 1405| +
1055| 1200| 1310| 1360| 865| 970| 1145| 1280| Norm
935| 1075| 1170| 1245| 790| 890| 1025| 1165| –
97G2UH135DV20| 1| 11×11| 45-75 High Fire| 1650| 1845| 2000| 2055| 2nd Stage| 1395| 1640| 1840| 2055| +
1495| 1660| 1880| 1905| 1290| 1480| 1660| 1905| Norm
1360| 1500| 1670| 1705| 1170| 1330| 1500| 1705| –
35-65 Low Fire| 1300| 1435| 1630| 1652| 1st Stage| 1015| 1160| 1330| 1480| +
1190| 1325| 1465| 1491| 940| 1085| 1200| 1345| Norm
1095| 1190| 1340| 1343| 870| 965| 1110| 1225| –

BLOWER PERFORMANCE DATA – DOWNFLOW

| MODEL| MOTOR SIZE (HP)| BLOWER SIZE| HEATING TEMP. RISE (°F)| HEATING CFM @ .10″ .80″ W.C.| COOLING STAGE| COOLING CFM @ .10″ .80″ W.C.| SPEED ADJUST.
---|---|---|---|---|---|---|---|---
SETTING “D”| SETTING “C”| SETTING “B”| SETTING “A”| SETTING “D”| SETTING “C”| SETTING “B”| SETTING “A”
DOWNFLOW| 97G2DF070BV16| 3/4| 11×10| ****

35-65 High Fire

| 1110| 1305| 1430| 1700| 2nd Stage| 1110| 1340| 1575| 1800| +
995| 1175| 1315| 1520| 995| 1230| 1420| 1650| Norm
880| 1055| 1170| 1365| 880| 1085| 1290| 1460| –
25-55 Low Fire| 860| 1020| 1140| 1340| 1st Stage| 740| 915| 1055| 1255| +
795| 910| 1030| 1230| 660| 820| 940| 1120| Norm
680| 825| 910| 1085| 575| 735| 850| 995| –
97G2DF090CV20| 1| 11×11| 40-70 High Fire| 1395| 1555| 1695| 1825| 2nd Stage| 1335| 1600| 1750| 1980| +
1275| 1395| 1585| 1670| 1225| 1450| 1630| 1830| Norm
1145| 1265| 1405| 1525| 1120| 1270| 1450| 1660| –
30-60 Low Fire| 1130| 1230| 1365| 1475| 1st Stage| 955| 1115| 1265| 1450| +
1040| 1130| 1250| 1340| 855| 1005| 1150| 1285| Norm
910| 1025| 1130| 1210| 750| 890| 1060| 1170| –
97G2DF110CV20| 1| 11×11| 45-75 High Fire| 1595| 1795| 1955| 2010| 2nd Stage| 1335| 1585| 1790| 2010| +
1450| 1615| 1795| 1865| 1220| 1440| 1630| 1865| Norm
1290| 1460| 1610| 1680| 1100| 1275| 1475| 1680| –
35-65 Low Fire| 1165| 1305| 1465| 1547| 1st Stage| 920| 1095| 1265| 1440| +
1055| 1185| 1315| 1404| 830| 965| 1130| 1290| Norm
930| 1070| 1180| 1272| 735| 860| 1035| 1155| –

DIMENSIONS (IN.) – UPFLOW / HORIZONTAL

| **MODEL| A| B| C| D
---|---|---|---|---|---
UPFLOW/HORIZONTAL**| 97G2UH045BV12| 17-1/2| 16-3/8| 16| 7-5/8
97G2UH070BV12| 17-1/2| 16-3/8| 16| 7-5/8
97G2UH090CV12| 21| 19-7/8| 19-1/2| 9-3/8
97G2UH090CV20| 21| 19-7/8| 19-1/2| 9-3/8
97G2UH110CV20| 21| 19-7/8| 19-1/2| 9-3/8
97G2UH135DV20| 24-1/2| 23-3/8| 23| 11-1/8

DIMENSIONS (IN.) – DOWNFLOW

| MODEL| A| B| C| D
---|---|---|---|---|---
DOWNFLOW| 97G2DF070BV16| 17-1/2| 16-3/8| 16| 15-1/2
97G2DF090CV20| 21| 19-7/8| 19-1/2| 19
97G2DF110CV20| 21| 19-7/8| 19-1/2| 19

ACCESSORY LIST

CATALOG NUMBER DESCRIPTION

EXTERNAL FILTER RACK KITS
1.841018| 1 PACK (16 X 25)
1.841039| 10 PACK (16 X 25)
NATURAL TO LP KITS
11K48| 2-STAGE – 90
11K47| HIGH ALTITUDE 2-STAGE (>4500FT.)
RETURN AIR BASE
68W62| 17.5″ B WIDTH
68W63| 21.0″ C WIDTH
68W64| 24.5″ D WIDTH
DOWNFLOW COMBUSTIBLE FLOORING BASE
11M60| 17.5″ B WIDTH
11M61| 21.0″ C WIDTH
NIGHT SERVICE KITS
84W50| TWO STAGE
HORIZONTAL SUSPENSION KIT
51W10| 80% & 90% KIT
FLUSH MOUNT TERMINATION (90% FURNACES ONLY) US ONLY
51W11| 2″ & 3″ VENT VERSION
CONCENTRIC VENT KIT (90% FURNACES ONLY) US ONLY
71M80| 1-1/2″ VENT VERSION
69M29| 2″ VENT VERSION
60L46| 3″ VENT VERSION
CONCENTRIC VENT KIT (90% FURNACES ONLY) CANADA
44W92| 1-1/2″ AND 2″ VENT VERSION
44W93| 3″ VENT VERSION

For vent length and clearances to combustibles, please reference installation instructions.
All specifications and illustrations subject to change without notice and without incurring obligations.

FORM NO. 97G2V-100 (10/2023)
© 2023 Allied Air Enterprises LLC,
a Lennox International Inc. Company

Printed in the U.S.A.

Documents / Resources

| Concord 97G2V Two Stage Variable Speed Gas Furnace [pdf] Owner's Manual
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