Lennox G23(X) User Manual

3DJH 
SPECIFICATIONS
Model No.
G23Q3/4(X)-10
0
G23Q4/5(X)-10
0
G23Q3/4(X)-12
5
G23Q5/6(X)-125
G23Q5/6(X)-15
0
Input Btuh (kW) 100,000 (29.3) 125,000 (36.6) 150,000 (44.0)
Output Btuh (kW) 80,000 (23.4) 81,000 (23.7) 100,000 (29.3) 120,000 (35.2)
R A.F.U.E. 80.7% 80.1% 80.0% 80.4% 80.0%
California Seasonal Efficiency 77.3% 75.9% 76.3% 76.8% 76.8%
Flue size connection diameter in. (mm) round 4 (102) 5 (127)
Temperature rise range  E F( E C) 40-70 (22-39) 30-60 (17-33) 45-75 (25-42) 35-65 (19-36) 40-70 (22-39)
High static certified by A.G.A.  in wg. (Pa) .50 (125)
Gas Piping Size I.P.S.
in. 1/2
Gas Piping Size I
.
P
.
S
.
Natural or LPG/propane
mm 12.7
Blower wheel nominal
in. 10x8 11-1/2 x 9 10x10 12x12
Blower wheel nominal
diameter x width
mm 254 x 203 292 x 229 254 x 254 305 x 305
Blower motor output  hp (W) 1/2 (373) 3/4 (560) 1/2 (373) 3/4 (560)
Nominal cooling
Tons 2to4 3-1/2 to 5 2to4 5 and 6
Nominal cooling
that can be added
kW 7.0 to 14.1 12.3 to 17.6 7.0 to 14.1 17.6 and 21.1
Shipping weight  lbs. (kg) 1 package 143 (65) 167 (76) 195 (88) 218 (99) 223 (101)
Electrical characteristics 120 volts  60 hertz  1 phase (all models) (less than 12 amps)
R Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations. Isolated combustion system rating for non-weatherized fur-
naces.
c Cleanable polyurethane frame type filter.
G23Q2(X)-50 BLOWER PERFORMANCE
External Static
Air Volume and Motor Watts at Specific Blower Taps
External Static
Pressure
High Medium Low
in. w.g. Pa cfm L/s Watts cfm L/s Watts cfm L/s Watts
0 0 1225 580 530 950 450 375 785 370 295
.10 25 1215 575 520 945 445 375 770 365 290
.20 50 1190 560 505 925 435 360 745 350 280
.30 75 1150 545 485 895 420 350 720 340 275
.40 100 1090 515 460 865 410 335 690 325 265
.50 125 1030 485 440 820 385 320 645 305 250
.60 150 960 455 415 760 360 300 595 280 235
.70 175 865 410 390 690 325 285 535 250 225
.80 200 760 360 365 600 285 260 445 210 200
.90 225 630 295 340 520 245 240 ---- ---- ----
NOTE  All air data is measured external to unit with 1 in. (25 mm) cleanable foam filter (not furnished) in place. Also see Filter Air Resistance table.
G23Q3(X)-50 BLOWER PERFORMANCE
External Static
Air Volume and Motor Watts at Specific Blower Taps
External Static
Pressure
High Medium-High Medium-Low Low
in. w.g. Pa cfm L/s Watts cfm L/s Watts cfm L/s Watts cfm L/s Watts
0 0 1620 765 630 1380 650 510 1110 525 405 875 415 310
.10 25 1575 745 605 1350 635 490 1090 515 390 870 410 305
.20 50 1520 715 580 1315 620 465 1080 510 375 860 405 295
.30 75 1455 685 550 1275 600 445 1050 495 355 840 395 285
.40 100 1390 655 525 1230 580 425 1015 480 340 815 385 275
.50 125 1320 625 505 1165 550 400 975 460 325 775 365 265
.60 150 1240 585 480 1100 520 375 920 435 310 715 335 245
.70 175 1160 545 460 1030 485 360 830 390 280 620 295 220
.80 200 1075 505 440 900 425 320 700 330 250 535 250 205
.90 225 900 425 395 720 340 285 600 285 230 ---- ---- ----
NOTE  All air data is measured external to unit with 1 in. (25 mm) cleanable foam filter (not furnished) in place. Also see Filter Air Resistance table.

Lennox G23(X) Specifications

General

Brand	Lennox
Model	G23(X)
Category	Furnace
Language	English