Lennox G17Q2-50 Unit Information

SERVICE
G17 and G17X series units are mid-efficiency gas fur
naces manufactured with Duracurve heat exchangers
formed of cold rolled steel. G17 units are available in heat
ing capacities of 50,000 to 125,000 Btuh and cooling ap
plications up to 6 tons. Refer to Engineering Handbook for
proper sizing.
Units are factory equipped for use with natural gas. A kit is
available for conversion to LPG operation. All G17 and
G17X units use electronic (intermittent pilot) ignition. The
G17X unit meets the California Nitrogen Oxides (NO
Standards and California Seasonal Efficiency require
ments. G17X units use only natural gas. All units use a re
dundant gas valve to assure safety shut-off as required by
A.G.A.
A burner box damper assembly located on the intake side of
the burners is featured on G17 series units. A damper door in
the burner box shuts during unit off cycles to retain heat in the
unit. A damper prove switch ensures that damper is open be
fore gas valve is energized. G17 furnaces use atmospheric
burners without an induced draft motor. All G17 units use a
draft hood which allows the use of standard single wall vent
connectors.
Model No.
Input Btuh
Output Btuh
*A.F.U.E.
California Seasonal Efficiency - X" Models
Flue connection (in. diameter) round
Temperature rise range
〈°F)
High static certified by A.G.A.(in wg.)
Gas Piping Size I.P.S. inches - Natural (**LPG)
Blower wheel nominal diameter x width (in.)
Blower motor hp
Tons of cooling that can be added
Number and size of filters (in.)
**Optional LPG Conversion Kit
Electrical characteristics
Continuous Low Speed Blower Kit (Optional)
Bottom Return Air Part No.
Filter (Optional) Media Cut Size (in.)
Return Air Cabinet (Optional)
•Not available with LPG.
*Annual Fuel Utilization Efficiency based on D.O.E. test procedures and according to F.T.C. labeling requirements. Isolated combustion system rating for non-weatherized furnaces.
**LPG kit must be ordered extra for field changeover.
***G17Q5/6X 100 model furnished with 25 x 26 x 1 filter.
UNIT
INFORMATION
Corp. 9132-L11
G17 SERIES UNITS
All specifications in this manual are subject to change.
Procedures outlined in this manual are presented as a rec
ommendation only and do not supersede or replace local
or state codes. In the absence of local or state codes, the
guidelines and procedures outlined in this manual (except
where noted) are recommended only and do not constitute
code.
)
x
SPECIFICATIONS
G17Q2-50 G17Q3-75
•G17Q2X 50 •G17Q3X 75
48,000 75,000
38,000 59,000
78.0% 78.0%
72.3% 73.4%
4 4
20-50 35-65
.50 .50
1/2 (1/2) 1/2 (1/2)
9 x 7 10 x 7
1/4 1/3
1, 1-1/2, 2 2-1/2 or 3
(1) 16 x 25 x 1
120 volts 60 hertz
RA10 16 49 RA10 16 49
Page 1
G17Q3/4-100 G17Q5/6-100 G17Q5/6-100
•G17Q3/4X 100 •G17Q5/6X 100 •G17Q5/6X 100
100,000 100,000
79,000 79,000
78.0% 78.0%
73.7% 72.5%
5 5
35-65 25-55
.50 .75
1/2 (1/2) 1/2 (1/2)
10 x 8 12 x 12
1/2 3/4
3, 3-1/2 or 4 5 or 6
LB-62384DB (All Models)
1 phase (less than 12 amps)
LB-63646A (All Models)
LB 62752DA (Non X Models)
RA10 16 49 RA10 16 53
G17
Litho U.S.A.
G17Q5/6-125
125,000
98,000
78.0%
6
35-65
.50
1/2 (1/2)
12 x 12
3/4
5 or 6
***(1) 20 x 25 x 1
All Models
25 x 26 x 1
RA10 16 53
 1992 Lennox Industries Inc.