Lennox KGB Series Unit Information page 13

SP EC IF ICATION S - STANDARD GAS HEAT
Model No.
Heat Input Type
Input 1st Stage
Btuh
2nd Stage
Output 1st Stage
Btuh
2nd Stage
Temperature 1st stage
Rise Range - °F
2nd Stage 15 - 45
Thermal Standard
1
Efficiency
Gas Supply Connections
Rec. Gas Supply Pressure -
Nat./ LPG
Thermal Efficiency at full input.
1
S P ECIFIC ATIONS - LOW NOx GAS H EAT
Model No.
Heat Input Type
Input 1st Stage
Btuh
2nd Stage
Output 1st Stage
Btuh
2nd Stage
Temperature 1st stage 35 - 65 15 - 45 5-35
Rise Range - °F
2nd Stage
AFUE (single phase)
1
Thermal Efficiency
2
(three phase)
Gas Supply Connections
Rec. Gas Supply Pressure -
Nat./ LPG
Annual Fuel Utilization Efficiency based on U.S. DOE test procedures and FTC labeling regulations - 1 phase models only.
1
Thermal Efficiency at full input.
2
HIG H ALTITU DE D ERATE
NOTE - Units may be installed at altitudes
up to 2000 ft. above sea level without any
modifications. At altitudes above 2000 ft.
units must be derated to match information
in the table shown. At altitudes above 4500
ft. unit must be derated 2% for each 1000 ft.
above sea level.
NOTE - This is the only permissible derate
for these units.
036 072H 036
048 074H 048
060 060
074S 074S
Standard Medium
(1 Stage) (1 Stage)
65,000 108,000
- - -
52,000 86,000
- - -
- - - - - - 30 - 70
5 - 35 - - -
80% 80%
024 036 072H 036
030 048 074H 048
060 060
074S 074S
Standard Standard
(1 Stage) (2 Stage)
Low NOx
65,000 53,000
- - - 70,000
52,000 43,000
- - - 57,000
5-35
- - - - - - - - - 15-45 10-40
81% 81% 81% 81%
81% 81% 81% 81%
Heat Input Type
Standard (1 stage)
Standard (2 stage)
Medium (1 stage)
Medium (2 stage)
High (1 stage)
High (2 stage)
Page 13
072H 036 072H
074H 048 074H
090S 060 090S
074S
Medium
(2 Stage)
81,000
- - - 108,000
65,000
- - - 86,000
15 - 45 25 - 55 10 - 40
- - - 30 - 70 15 - 45
80% 80% 80%
1/2 in. NPT
7 in.w.g. / 11 in.w.g.
SING LE AND T HR EE P H ASE M O DELS
072H 036 072
074H 048 074
060
074S
Medium
(1 Stage)
Only
108,000
- - -
87,000
- - -
5-35 30 - 70 15 - 45 25 - 55 10 - 40
- - - - - - 30 - 70 15 - 45 45 - 75 25 - 55 45 - 75 25 - 55
81% 81% 81%
81% 81% 81%
1/2 in. NPT
7 in.w.g. / 11 in.w.g.
Gas Manifold Pressure
Altitude Feet
Natural Gas LPG/ Propane
2001 - 4500 3.0
2001 - 4500 3.0/1.7
2001 - 4500 3.0
2001 - 4500 3.0/1.7
2001 - 4500 3.0
2001 - 4500 3.0/1.7
T H REE P H AS E M O D ELS
048 072H
060 074H
074S 090S
High
(1 Stage)
150,000
- - -
120,000
- - -
- - - - - - 30 - 60
45 - 75 25 -55 45 - 75
80% 80%
036 072H 048 072H
048 074H 060 074H
060 074S
074S
Medium High
(2 Stage) (1 Stage)
81,000 150,000
108,000 - - -
66,000 121,000
87,000 - - -
- - - - - -
81% 81% 81% 81%
81% 81% 81% 81%
in. w.g.
Input Rate (Btuh)
9.0
9.0/5.1 65,000 / 49,000
9.0
9.0/5.1 100,000 / 75,000
9.0
9.0/5.1 139,000 / 104,000
048 072H
060 074H
074S 090S
High
(2 Stage)
113,000
150,000
90,000
120,000
15 - 45
25 - 55
80% 80%
048 072H
060 074H
074S
High
(2 Stage)
113,000
150,000
92,000
121,000
30 - 60 15 - 45
81% 81%
81% 81%
60,000
100,000
139,000