Lennox G21Q3-40 User Manual

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SPECIFICATIONS (contd.)
SPECIFICATIONS (units equipped with conventional multispeed blower motor)
Model No. GSR21Q350
GSR21Q45
0
GSR21Q38
0
GSR21Q4/580 GSR21Q4/5100
Input Btuh 50,000 50,000 80,000 80,000 100,000
Output Btuh 47,000 47,000 71,000 72,000 92,000
*A.F.U.E. 94.8% 95.3% 91.7% 94.1% 92.0%
California Seasonal Efficiency 89.7% 90.1% 87.6% 88.6% 87.3%
Temperature rise range (°F) 30  60 25  55 40  70 30  60 45  75
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 10 x 10 10 x 10 12 x 12 12 x 12
Blower motor hp 1/3 1/2 1/3 3/4 3/4
Number and size of filters (in.) (1) 20 x 25 x 1
Tons of cooling that can be added 11/2  3 31/2  4 2  3 31/2  5 31/2  5
Electrical characteristics 120 volts  60 hertz  1 phase (less than 12 amps) All models
LPG kit (optional) **Furnished •LB65810C
Optional Horizontal Support Frame Kit  Ship. Weight LB56495CA (All Models)  18 lbs.
Optional Downflow Additive Base  Shipping Weight LB80639BB (All Models)  6 lbs.
•LPG kit must be ordered extra for field changeover.
*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 orifice furnished as standard with unit for field changeover. Convertible gas valve requires simple adjustment without adding any parts. See installation instructions.
SPECIFICATIONS (units equipped with electronically controlled blower motor)
Model No. G21V360 G21V380 G21V580 G21V5100
Input Btuh 60,000 80,000 80,000 100,000
Output Btuh 55,000 73,000 74,000 95,000
*A.F.U.E. 94.3% 94.5% 93.4% 94.5%
California Seasonal Efficiency 92.5% 92.4% 90.9% 91.5%
Temperature rise range (°F) 40  70 45  75 35  65 40  70
High static certified by A.G.A. (in wg.) .80 .80 .80 .80
Gas Piping Size Natural 1/2 1/2 1/2 1/2
I.P.S. (in.) **LPG 1/2 1/2 1/2 1/2
Vent/Intake air pipe size connection (in.) 2 2 2 2
Condensate drain connection (in.) SDR11 1/2 1/2 1/2 1/2
Blower wheel nominal diameter x width (in.) 10 x 8 10 x 8 111/2 x 9 111/2 x 9
Blower motor hp 1/2 1/2 1 1
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
Tons of cooling that can be added 11/2, 2, 21/2 or 3 2, 21/2 or 3 31/2, 4 or 5 31/2, 4 or 5
Electrical characteristics 120V − 60hertz − 1 phase − 12.0 Amps Max 120V − 60hertz − 1 phase − 14.5 Amps Max
External Filter Cabinet (furnished)
•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
**LPG kit (optional) LB65810B LB65810B LB65810B LB65810C
•Filter is not furnished with cabinet. Filter cabinet utilizes existing filter supplied with G21V 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 G21Q3-40 Specifications

General

Brand	Lennox
Model	G21Q3-40
Category	Industrial Equipment
Language	English