Lennox KCB036

©2015
Litho U.S.A.
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....................................
Requirements Page 4...............................
Unit Support Page 5................................
Duct Connection Page 5............................
Rigging Unit For Lifting Page 6.......................
Horizontal Air Discharge Page 6......................
Condensate Drains Page 6..........................
Gas Piping Page 8.................................
Pressure Test Gas Piping Page 9.....................
High Altitude Derate Page 9.........................
Electrical Connections Page 9.......................
Blower Operation and Adjustments Page 11............
Cooling Start-Up Page 42............................
Gas Heat Start-Up Page 51...........................
Heating Operation and Adjustments Page 52............
Electric Heat Start-Up Page 52........................
Service Page 53....................................
INSTALLATION
INSTRUCTIONS
KGB/KCB024
KGB/KCB030
KGA/KCA036
KGB/KCB036
KGA/KCA048
KGB/KCB048
KGA/KCA060
KGB/KCB060
KGA/KCA072
KGB/KCB072
KGB/KCB074
KGA/KCA090
2-Ton
2-1/2-Ton
3-Ton
3-Ton
4-Ton
4-Ton
5-Ton
5-Ton
6-Ton
6-Ton
6-Ton
6-Ton
7-1/2 Ton
GAS AND COOLING PACKAGED UNITS
507348-04
12/2015
Supersedes 507348-01, -02, -03
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
KG SHOWN

Lennox KCB036 Specifications

General

Refrigerant	R-410A
Phase	1
Weight (Outdoor Unit)	220 lbs
Cooling Capacity	36000 BTU/h
Sound Level	72 dB
Operating Voltage	208/230V
Sound Level (Outdoor Unit)	72 dB

Summary

KG KC 024, 030, 036, 048, 060, 072, 074, 090 DIMENSIONS

Unit Support

Connect Gas Piping (Gas Units)

Electrical Connections

CONTROL WIRING

Thermostat Location

Recommendations for optimal thermostat placement to ensure accurate temperature readings.

Blower Operation and Adjustments

Determining Unit CFM - Direct Drive Blowers

Procedure to measure CFM using static pressure and blower speed settings from figure 16.

Cooling Start-Up

Operation

Steps to initiate first and second stage cooling demands according to thermostat instructions.

C-Refrigerant Charge and Check - FinTube Coil

E-Refrigerant Charge and Check - All-Aluminum Coil

NORMAL OPERATING PRESSURES

Table 14 lists normal operating pressures for KGB/KCB024 models.

KGBKCB 036 Charging Curves

KGBKCB074 S & H Charging Curves

F-Compressor Controls

High Pressure Switch (S4)

Gas Heat Start-Up (Gas Units)

A-Placing Unit In Operation

Step-by-step instructions for placing the gas unit into operation, including safety warnings.

Heating Operation and Adjustments

Ignition Control Diagnostic LEDs

Service

Filters

D-Combustion Air Inducer (Gas Units)