Lennox KCC Series

Page 1
UNIT INFORMATIONUNIT INFORMATION
Service Literature
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal
injury. Take care while handling this equipment and
wear gloves and protective clothing.
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 disconnect
switch(es). Unit may have multiple power
supplies.
Table of Contents
Options . . . . . . . . . . . . . . . . . . . . . .Page 2

Blower Data . . . . . . . . . . . . . . . . . . Page 6
Electrical Data / Electric Heat Data . Page 10
Outdoor Sound Data. . . . . . . . . . . . . Page 14
I Unit Components . . . . . . . . . . . . . Page 16
II Placement and Installation . . . . . Page 27
III Start Up Operation . . . . . . . . . . . Page 27
IV Charging . . . . . . . . . . . . . . . . . . . Page 28
V System Service Checks . . . . . . . Page 34
VI Maintenance . . . . . . . . . . . . . . . . Page 34

VIII Diagrams . . . . . . . . . . . . . . . . . . Page 43

packaged cooling units are available in standard cooling
󰀩       

gle or multiple stages depending on the kW input size.
    
KCC packaged cooling units.
󰀩


 󰀩 
tube coils.
󰀨
ent energy management thermostat control systems with

tions connect to the unit with jack plugs. When ”plugged

  

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.




WARNING
To prevent serious injury or death:
1- Lock-out/tag-out before performing maintenance.
2- If system power is required (e.g., smoke detector
maintenance), disable power to blower, remove
fan belt where applicable, and ensure all
controllers and thermostats are set to the “OFF”
position before performing maintenance.
3- Always keep hands, hair, clothing, jewelry, tools,
etc., away from moving parts.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
personal injury or loss of life. Installation and service
must be performed by a licensed professional HVAC
installer or equivalent, service agency, or the gas
supplier
KCC SERIES
7.5 to 12.5 ton

KCC092 through 150

Lennox KCC Series Specifications

General

Brand	Lennox
Model	KCC Series
Category	Air Conditioner
Language	English

Summary

Service Literature

KCC092-150 Series Overview

Series information for KCC packaged cooling units.

Options and Accessories

Cooling, Blower, Cabinet, and Control Options

Options for cooling systems, blowers, cabinets, and controls.

IAQ, Electrical, and Heat Options

Options for indoor air quality, electrical, and heating.

Economizer and Installation Options

Options for economizers and installation accessories.

Specifications

General Data and Cooling Performance

General unit data and cooling performance metrics.

Refrigerant, Compressor, and Coil Specs

Specifications for refrigerant, compressors, and coils.

Blower, Filter, and Electrical Characteristics

Specifications for blowers, filters, and electrical systems.

Blower Performance Data

Belt Drive Blower Performance (7.5-8.5 Ton)

Blower performance data for 7.5 and 8.5 ton belt drive units.

Minimum Air Volume for Electric Heat

Required minimum air volume for electric heat operation.

Belt Drive Blower Performance (10-12.5 Ton)

Blower performance data for 10 and 12.5 ton belt drive units.

Electrical and Electric Heat Data

Electrical and Heat Data (7.5 Ton)

Electrical and electric heat data for 7.5 ton units.

Electrical and Heat Data (8.5 Ton)

Electrical and electric heat data for 8.5 ton units.

Electrical and Heat Data (10 Ton)

Electrical and electric heat data for 10 ton units.

Electrical and Heat Data (12.5 Ton)

Electrical and electric heat data for 12.5 ton units.

Unit Components and Safety

Parts Arrangement and Control Box Details

Arrangement of unit parts and control box components.

Unit Components Overview and ESD Precautions

Overview of unit components and electrostatic discharge precautions.

Plumbing and Refrigerant Circuits

Refrigerant Circuit Diagrams

Diagrams illustrating refrigerant circuits.

Compressor Details and Protection

Compressor Operation and Protection

Details on compressor operation and protection mechanisms.

Protective Devices and Kits

Information on protective devices and installed kits.

Blower System Service and Operation

Blower Compartment, Operation, and Access

Details on blower compartment, operation, and access.

Blower Service Procedures

Procedures for servicing the blower system.

Blower Belt Adjustment and Tension

Procedures for adjusting blower belt tension.

Electric Heat System Details

Electric Heat Components and Controls

Overview of electric heat components and controls.

Electric Heat Fuse Rating

Fuse ratings for electric heat sections.

Electric Heat Vestibule Parts and Wiring

Arrangement and wiring of electric heat vestibule parts.

Installation, Startup, and Maintenance

Installation and Startup Procedures

Guidelines for unit installation and startup.

System Service Checks and Maintenance

Procedures for system service checks and maintenance.

Refrigerant Charging Procedures and Curves

All Aluminum Coil Charging Procedure

Procedure for charging all aluminum outdoor coils.

092 S Charging Curves

Refrigerant charging curves for 092S model.

102 S Charging Curves

Refrigerant charging curves for 102S model.

120 S Charging Curves

Refrigerant charging curves for 120S model.

150 S Charging Curves

Refrigerant charging curves for 150S model.

FinTube Coil Charge Verification

Verification of refrigerant charge for fin/tube coils.

Economizer and Air Control Systems

Optional Accessories Overview

Overview of optional accessories.

Economizer and Damper Operation

Operation of economizers and air dampers.

Enthalpy Controller and Fresh Air Calculation

Enthalpy controller settings and fresh air calculation.

Wiring Diagrams and Sequences of Operation

Unit Wiring Diagrams

Wiring diagrams for the unit.

Sequence of Operation

Operational sequences for unit functions.

Thermostat and Control Wiring

Electronic Thermostat Wiring Diagram

Wiring diagram for electronic thermostats.

Thermostat with Reheat Wiring

Wiring for thermostats with reheat functionality.

Economizer Control Wiring Diagram

Wiring diagram for economizer controls.