Lennox G21Q Series Unit Information

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SPECIFICATIONS (units equipped with conventional multispeed blower motor)
Model No. G21Q340 G21Q360 G21Q460
Input Btuh 40,000 60,000 60,000
Output Btuh 38,000 55,000 55,000
*A.F.U.E. 96.2% 94.1% 94.1%
California Seasonal Efficiency 90.7% 89.9% 88.8%
Temperature rise range (°F) 35  65 40  70 35  65
High static certified by A.G.A. (in wg.) .50 .50 .50
Gas Piping Size Natural 1/2 1/2 1/2
I.P.S. (in.) **LPG 1/2 1/2 1/2
Vent/Intake air pipe size connection (in.) 2 2 2
Condensate drain connection (in.) SDR11 1/2 1/2 1/2
Blower wheel nominal diameter x width (in.) 10 x 8 10 x 8 11 x 9
Blower motor hp 1/3 1/3 1/2
Number and size of filters (in.) (1) 16 x 25 x 1 (1) 16 x 25 x 1 (1) 16 x 25 x 1
Tons of cooling that can be added 11/2  3 11/2  3 21/2  4
Electrical characteristics 120 volts  60 hertz  1 phase (less than 12 amps) All models
**LPG kit (optional) LB65810A LB65810B LB65810B
External Filter Mounting Part No. LB81871CA LB81871CA LB81871CA
Kit (optional) •Filter size (in.) (1) 16 x 25 x 1 (1) 16 x 25 x 1 (1) 16 x 25 x 1
•Filter is not furnished with kit. Filter kit utilizes existing filter supplied with G21 unit.
*Annual Fuel Utilization Efficiency based on D.O.E. test procedures and according to F.T.C. labeling regulations.
Isolated combustion system rating for nonweatherized furnaces.
**LPG kit must be ordered extra for field changeover.
SPECIFICATIONS (units equipped with conventional multispeed blower motor)
Model No. G21Q380 G21Q480 G21Q580 G21Q3100 G21Q4/5100
Input Btuh 80,000 80,000 80,000 100,000 100,000
Output Btuh 73,000 73,000 74,000 93,000 95,000
*A.F.U.E. 93.9% 93.9% 93.2% 94.9% 94.5%
California Seasonal Efficiency 90.1% 88.9% 88.3% 90.8% 89.6%
Temperature rise range (°F) 45  75 40  70 35  65 55  85 40  70
High static certified by A.G.A. (in wg.) .50 .50 .50 .50 .50
Gas Piping Size Natural 1/2 1/2 1/2 1/2 1/2
I.P.S. (in.) **LPG 1/2 1/2 1/2 1/2 1/2
Vent/Intake air pipe size connection (in.) 2 2 2 2 2
Condensate drain connection (in.) SDR11 1/2 1/2 1/2 1/2 1/2
Blower wheel nominal diameter x width (in.) 10 x 8 11 x 9 12 x 12 10 x 8 12 x 12
Blower motor hp 1/3 1/2 3/4 1/2 3/4
Number and size of filters (in.) (1) 16 x 25 x 1 (1) 16 x 25 x 1 (1) 20 x 25 x 1 (1) 20 x 25 x 1 (1) 20 x 25 x 1
Tons of cooling that can be added 2  3 21/2  4 4 or 5 2  3 31/2  5
Electrical characteristics 120 volts  60 hertz  1 phase (less than 12 amps) All models
**LPG kit (optional) LB65810B LB65810B LB65810B LB65810C LB65810C
External Filter Mounting Part No. LB81871CA LB81871CA LB81871CB LB81871CB LB81871CB
Kit (optional) •Filter size (in.) (1) 16 x 25 x 1 (1) 16 x 25 x 1 (1) 20 x 25 x 1 (1) 20 x 25 x 1 (1) 20 x 25 x 1
•Filter is not furnished with kit. Filter kit utilizes existing filter supplied with G21 unit.
*Annual Fuel Utilization Efficiency based on D.O.E. test procedures and according to F.T.C. labeling regulations.
Isolated combustion system rating for nonweatherized furnaces.
**LPG kit must be ordered extra for field changeover.

Lennox G21Q Series Specifications

General

Brand	Lennox
Model	G21Q Series
Category	Industrial Equipment
Language	English