Lennox KGB Series - Specifications - Gas Heat; Standard Gas Heat Specifications; Low NOx Gas Heat Specifications; High Altitude Derate

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SPECIFICATIONS - STANDARD GAS HEAT THREE PHASE MODELS
Model No. 036
048
060
074S
072H
074H
036
048
060
074S
072H
074H
090S
036
048
060
074S
072H
074H
090S
048
060
074S
072H
074H
090S
048
060
074S
072H
074H
090S
Heat Input Type Standard
(1 Stage)
Medium
(1 Stage)
Medium
(2 Stage)
High
(1 Stage)
High
(2 Stage)
Input

1st Stage     
2nd Stage - - - - - -  - - - 
Output

1st Stage     
2nd Stage - - - - - -  - - - 
Temperature

1st stage - - - - - - 30 - 70 15 - 45 25 - 55 10 - 40 - - - - - - 30 - 60 15 - 45
2nd Stage 15 - 45 5 - 35 - - - - - - 30 - 70 15 - 45 45 - 75 25 -55 45 - 75 25 - 55
1

󰀩
Standard 80% 80% 80% 80% 80% 80% 80% 80% 80%
Gas Supply Connections 1/2 in. NPT
Rec. Gas Supply Pressure -
Nat./ LPG

1
󰀩
SPECIFICATIONS - LOW NOx GAS HEAT SINGLE AND THREE PHASE MODELS
Model No. 024
030
036
048
060
074S
072H
074H
036
048
060
074S
072H
074H
036
048
060
074S
072
074
036
048
060
074S
072H
074H
048
060
074S
072H
074H
048
060
074S
072H
074H
Heat Input Type Standard
(1 Stage)
Standard
(2 Stage)
Low NOx
Only
Medium
(1 Stage)
Medium
(2 Stage)
High
(1 Stage)
High
(2 Stage)
Input

1st Stage      
2nd Stage - - -  - - -  - - - 
Output

1st Stage      
2nd Stage - - -  - - -  - - - 
Temperature

1st stage 35 - 65 15 - 45 5-35 5-35 5-35 30 - 70 15 - 45 25 - 55 10 - 40 - - - - - - 30 - 60 15 - 45
2nd Stage - - - - - - - - - 15-45 10-40 - - - - - - 30 - 70 15 - 45 45 - 75 25 - 55 45 - 75 25 - 55
1
 81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81%
2
󰀩

81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81% 81%
Gas Supply Connections 1/2 in. NPT
Rec. Gas Supply Pressure -
Nat./ LPG

1
󰀩
2
󰀩
HIGH ALTITUDE DERATE
NOTE - Units may be installed at altitudes





above sea level.


Heat Input Type Altitude Feet
Gas Manifold Pressure
in. w.g.
Input Rate (Btuh)
Natural Gas LPG/ Propane
Standard (1 stage) 2001 - 4500 3.0 9.0 
Standard (2 stage) 2001 - 4500 3.0/1.7 9.0/5.1 
Medium (1 stage) 2001 - 4500 3.0 9.0 
Medium (2 stage) 2001 - 4500 3.0/1.7 9.0/5.1 
 2001 - 4500 3.0 9.0 
 2001 - 4500 3.0/1.7 9.0/5.1 