Lennox G26 Series User Manual

Page 2
SPECIFICATIONS
Model No. G26Q2-50 G26Q3-50 G26Q3-75 G26Q4/5-75
Input Btuh (kW) 50,000 (14.7) 75,000 (22.0)
Output Btuh (kW) 46,000 (13.5) 47,000 (13.8) 70,000 (20.5) 69,000 (20.2)
A.F.U.E. 92% 92.4% 92.0% 92.0%
California Seasonal Efficiency 85.9% 86.5% 86.3% 83.8%
Exhaust pipe connection (PVC) diameter in. (mm) 2 (51)
Intake pipe connection (PVC) diameter in. (mm) 2 (51)
Condensate drain connection (PVC) in. (mm) 1/2 (12.7)
Temperature rise range  F (C) 40−70 (22−39) 30−60 (17−33) 40−70 (22−39) 20−50 (11−28)
High static certified by (A.G.A./C.G.A.)  in. wg. (Pa) .50 (125)
Gas Pi
p
in
g
Size I.P.S.
in. 1/2
Gas
Piping
Size
I
.
P
.
S
.
Natural or LPG/propane
mm 12.7
Blower wheel nominal
in. 10 x 7 10 x 8 11-1/2 x 9
Blower
wheel
nominal
diameter x width
mm 254 x 178 254 x 203 292 x 229
Blower motor output  hp (W) 1/5 (149) 1/3 (249) 3/4 (560)
Nominal coolin
g
Tons 1 to 2 2 to 3 3-1/2 to 5
Nominal
cooling
that can be added
kW 3.5 to 7.0 3.5 to 10.6 12.3 to 17.6
Shipping weight  lbs. (kg) 1 package 150 (68) 157 (71) 157 (71) 182 (83)
Electrical characteristics 120 volts  60 hertz  1 phase (all models) (less than 12 amps)
 Optional Accessories (Must Be Ordered Extra) 
LPG/Propane kit (optional) 65K27 (all models)
Filter and Filter Rack Kits
No. & sizeoffilters − in. (mm)
Single (44J20) Ten Pack (66K61)
(1) 14 x 25 x 1 (356 x 635 x 25)
Single (44J21)
Ten Pack (66K62)
(1) 20 x 25 x 1
(508 x 635 x 25)
Concentric Vent/Intake Air/Roof Termination Kit (optional) 60G77  1 1/2 inch (38 mm)

Vent/Intake Air Roof
2 inch (51 mm) 15F75
Vent/Intake
Air
Roof
Termination Kit (optional)  vent size
3 inch (76 mm) 44J41
Vent/Intake Air Wall
Termination Kit (optional) vent size
2 inch (51 mm)
15F74 (ring kit)  22G44 (close couple)  30G28 (WTK close couple)
30G79 (WTKX close couple with extension riser)
Termination Kit (optional)  vent size
3 inch (76 mm) 44J40 (close couple) or 81J20 (WTK close couple)
Twinnin
g
Kits
Non-continuous low speed 64H88 (all models)
Twinning
Kits
(optional)
Continuous low speed 35J93 (all models)
Continuous Low Speed Blower Switch (optional) 44J06 (−1 and −2 models) Not used with Twinning Kits
Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations. Isolated combustion system rating for non-weatherized furnaces.
Polyurethane frame type filter.
Determine from venting tables proper intake and exhaust pipe size and termination kit required.

Lennox G26 Series Specifications

General

Brand	Lennox
Model	G26 Series
Category	Furnace
Language	English