Lennox KGB Series Unit Information

Service Literature
The KGB packaged gas units are available in standard
cooling efficiency (024, 030, 036, 048 060, 072, 074 and
090). Cooling capacities range from 2 to 7-1/2 tons (7 to
26kW).
KGB024, 030, 036, 048, 060, 072, 074 units are avail­
able in 65,000 BTUH heat capacity /KGB036, 048, 060,
072, 074 and 090 units are available in 108,000 BTUH
(105,000 BTUH in earlier built units ) heat capacity.
KGB048, 060, 072, 074 and 090 units are available in
150,000 BTUH (44 kW) heat sizes. Two stage heat is
available in units with 108,000 (105,000 in earlier built
units) and 150,000 BTUH capacities. Gas heat sections
are designed with aluminized steel tube heat exchang­
ers.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are
subject to change. Procedures outlined in this manual are
presented as a recommendation only and do not super­
sede or replace local or state codes.
If the unit must be lifted for service, rig unit by attaching four
cables to the holes located in the unit base rail (two holes at
each corner). Refer to the installation instructions for the
proper rigging technique.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person­
al injury or loss of life. Installation and service must
be performed by a licensed professional installer (or
equivalent), service agency or the gas supplier.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at discon­
nect switch(es). Unit may have multiple
power supplies.
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal in­
jury. Take care while handling this equipment and
wear gloves and protective clothing.
100004
May 2020
KGB024 through 090
Electrostatic discharge can affect electronic
components. Take precautions during unit instal­
lation and service to protect the unit's electronic
controls. Precautions will help to avoid control
exposure to electrostatic discharge by putting
the furnace, the control and the technician at the
same electrostatic potential. Neutralize electro­
static charge by touching hand and all tools on an
unpainted unit surface, such as the gas valve or
Blower deck, before performing any service pro­
cedure.
Options
Specifications
Spec. Gas Heat / High Altitude
Blower Data
Electrical Data
I Unit Components
II Placement and Installation
III Start Up Operation
IV Charging
V System Service Checks
VI Maintenance
VII Accessories
VIII Diagrams
Page 1
KGB SERIES
2 to 7-1/2 ton
7 to 26 kW
ELECTROSTATIC DISCHARGE (ESD)

Precautions and Procedures

CAUTION

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