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Lennox ZCC150 - User Manual

Lennox ZCC150
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Page 1
UNIT INFORMATIONUNIT INFORMATION
Service Literature
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 / Accessories . . . . . . . . . . . . . . . . . . . . . . . Page 2

Blower Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6
Electrical Data /Electric Heat Data . . . . . . . . . . . . Page 10

I- Unit Components . . . . . . . . . . . . . . . . . . . . . . . Page 16
II- Placement and Installation . . . . . . . . . . . . . . . Page 27
III- Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27
IV- Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
V- System Service Checks . . . . . . . . . . . . . . . . . Page 33
VI- Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 33
VII- Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 34
VIII-Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . Page 41

packaged electric units are available in standard cooling
󰀩
󰀨-
ent energy management thermostat control systems with
-
tions connect to the unit with jack plugs. When ”plugged
in” the controls become an integral part of the unit wiring.
       -
erates in single or multiple stages depending on the kW

ZCC units.
Information contained in this manual is intended for use

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.



for the proper rigging technique.
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.
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.
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.
ZCC SERIES
7.5 to 12.5 ton
26.3 to 42 kW
100078
ZCC092 through 150
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Lennox ZCC150 Specifications

General IconGeneral
BrandLennox
ModelZCC150
CategoryAir Conditioner
LanguageEnglish

Summary

OPTIONS; ACCESSORIES

ELECTRIC HEAT

Lists available electric heat options and capacities.

ECONOMIZER

Describes economizer options and controls for energy savings.

SPECIFICATIONS

Cooling Performance

Details cooling performance metrics like capacity and airflow.

Refrigerant Charge

Lists refrigerant types and capacities for each circuit.

Blower and Drive Selection

Provides information on blower motor and drive kit selection.

Electrical Characteristics

Lists electrical operating characteristics and voltage requirements.

BLOWER DATA

Belt Drive Blower Data (7.5 & 8.5 Ton)

Presents blower data for belt drive systems on 7.5 and 8.5 ton units.

Belt Drive Blower Data (10 & 12.5 Ton)

Presents blower data for belt drive systems on 10 and 12.5 ton units.

Factory Installed Belt Drive Kit Specs

Details specifications for factory-installed belt drive kits.

ELECTRICAL;ELECTRIC HEAT DATA

ELECTRIC HEAT CAPACITIES

I-UNIT COMPONENTS

Electrostatic Discharge (ESD) Precautions

Procedures for handling electronic components safely.

Cooling System Components

Describes the cooling system components and their functions.

Optional Electric Heat Components

Details components related to optional electric heat sections.

OPERATION; ADJUSTMENT

Three Scroll Compressor Voltage Phasing

Explains how to phase three-phase scroll compressors correctly.

Determining Unit CFM

Guides on calculating the unit's airflow (CFM).

Blower Pulley and Belt Adjustment

Explains how to adjust blower pulleys and check belt tension.

II-PLACEMENT AND INSTALLATION

Preliminary and Seasonal Checks

Covers preliminary checks before starting the unit.

Cooling System Startup

Details the startup procedure for cooling operation.

Three Phase Scroll Compressor Voltage Phasing

Explains proper voltage phasing for scroll compressors.

IV-CHARGING

Refrigerant Charge and Check Procedure

Procedures for checking and adding refrigerant charge.

VI-MAINTENANCE

VIII-Wiring Diagrams and Sequence of Operation

ZCC092;150 Sequence of Operation

Details the step-by-step operation of the ZCC092/150 unit.

EHA Electric Heat Wiring Diagram (G & J Voltage)

EHA Electric Heat Sequence of Operation

Step-by-step operation for electric heat kW ratings.

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