Lennox KCA150

©2017
WARNING
Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a licensed professional
HVAC installer or equivalent, service agency, or the
gas supplier
Table Of Contents
Dimensions Page 2.................................
Parts Arrangements Page 3.........................
Shipping and Packing List Page 4....................
General Page 4....................................
Safety Page 4.....................................
Unit Support Page 5................................
Duct Connection Page 5............................
Rigging Unit For Lifting Page 5.......................
Condensate Drains Page 6..........................
Connect Gas Piping Page 7.........................
Pressure Test Gas Piping Page 8.....................
INSTALLATION
INSTRUCTIONS
KGA/KCA092
KGA/KCA102
KGA/KCA120
KGA/KCA150
(7.5 Ton)
(8.5 Ton)
(10 Ton)
(12-1/2 Ton)
GAS AND COOLING PACKAGED UNITS
507118-06
4/2017
Supersedes 10/2016
High Altitude Derate Page 9.........................
Electrical Connections Page 9.......................
Unit Power-Up Page 10..............................
Blower Operation and Adjustments Page 10............
Cooling Start-Up Page 18............................
Gas Heat Start-Up Page 26...........................
Heating Operation and Adjustments Page 27............
Electric Heat Start-Up Page 27........................
Supply Air Inverter Start-Up Page 28...................
Service Page 30....................................
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
KGA SHOWN

Lennox KCA150 Specifications

General

Brand	Lennox
Model	KCA150
Category	Air Conditioner
Language	English

Summary

Safety Guidelines

Important Notices and Cautions

Groups general safety warnings, cautions, and important notes found on the page.

Connect Gas Piping

Pressure Test Gas Piping

Electrical Connections

Control Wiring

Details on routing and connecting thermostat wires to the control box.

Unit Power-Up

Cooling Start-Up

Gas Heat Start-Up

Inverter Start-Up

Set Maximum Blower CFM

Procedure to adjust blower pulley for full speed CFM.

Set Blower Speed During Ventilation

Setting blower speed to low for energy saving during ventilation.

Set Damper Minimum Position

Service and Maintenance

Filters

Burners

Combustion Air Inducer

Flue Passageway and Flue Box