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Lennox Energence LGH - User Manual

Lennox Energence LGH
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PACKAGED GAS ELECTRIC
LGH
Energence
®
Rooftop Units
50 Hz
Bulletin No. 490140
March 2021
Supersedes August 2019
45.7 to 88 kW (13 to 25 Ton)
Net Cooling Capacity - 37.1 to 68.6 kW (127 000 to 234 000 Btuh)
Gas Input Heat Capacity - 49.5 to 123 kW (169 000 to 420 000 Btuh)
L G H 240 H 4 B S 1 M
Brand/Family
L = Energence
®
Unit Type
G = Packaged Gas Heat w/ Electric Cooling
Major Design Sequence
H = 1st Generation
Cooling Efciency
󰀩
󰀩
Refrigerant Type
4 = R-410A
Blower Type
B = Belt Drive
Heating Type
L = Low Gas Heat, 1 Stage
S = Standard Gas Heat, 2 Stage
M = Medium Gas Heat, 2 Stage
H = High Gas Heat, 2 Stage
Minor Design Sequence
1 = 1st Revision
2 = 2nd Revision
3 = 3rd Revision
Nominal Cooling Capacity
156 = 45.7 kW
180 = 52.8 kW
210 = 61.5 kW
240 = 70.3 kW
300 = 88 kW
Voltage
M = 380/420V-3 phase-50Hz
LGH 45.7 TO 88 KW ROOFTOP UNITS
COMMERCIAL
PRODUCT SPECIFICATIONS
MODEL NUMBER IDENTIFICATION
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Lennox Energence LGH Specifications

General IconGeneral
CategoryAir Conditioner
RefrigerantR-410A
Compressor TypeScroll
Voltage208/230V
ControliComfort

Summary

Model Number Identification

LGH Model Number Breakdown

Explains the meaning of each code in the model number.

Feature Highlights

Key Unit Components

Details key components of the rooftop unit, identified by numbers.

Performance, Quality, and CE Mark

CE Mark Option Details

Details the CE mark configuration, requirements, and features.

Features and Benefits

Heating System Components

Details heat exchanger, burners, ignition, and safety controls.

Cooling System Components

Describes compressors, expansion valves, filters, and safety switches.

Cabinet Construction and Features

Details cabinet materials, airflow, power entry, insulation, and access panels.

Blower System Options

Covers blower motor types, supply air blower design, and drive kits.

Electrical and Indoor Air Quality

Explains the SmartWire system, air filters, and UVC germicidal lamps.

Control System Overview

Prodigy Control System Features

Details the microprocessor controller, LCD display, navigation, and built-in functions.

Options and Accessories

Economizer and Exhaust Systems

Explains economizer operation, control options, and exhaust system details.

Outdoor Air, Roof Curbs, and Diffusers

Covers outdoor air dampers, roof curb types, and ceiling diffusers.

Optional Temperature Control Systems

ComfortSense Thermostat Series

Describes the ComfortSense 8500, 7500, and 3000 series thermostats.

Humiditrol Dehumidification System

System Operation and Benefits

Explains the system's purpose, operation modes, and benefits for humidity control.

General Specifications

Cooling Performance and Refrigerant Charge

Provides detailed cooling capacity, airflow, and refrigerant charge data by model.

Gas Heating Specifications

High Altitude Derate Information

Details derating requirements for gas manifold pressure at higher altitudes.

Blower Performance Data

Air Volume and Static Pressure Tables

Provides blower performance data for various air volumes and static pressures.

Electrical Data

Motor Amperage and Overcurrent Protection

Lists motor amps, locked rotor amps, and overcurrent protection for unit components.

Unit Clearances and Sound Data

Outdoor Sound Level Data

Presents octave band sound power levels and Sound Rating Number (SRN).

Weight Data and Options

Weights for Options and Accessories

Provides net and shipping weights for various unit configurations and accessories.

Dimensions and Center of Gravity

LGH156 Model Dimensions

Includes corner weights and center of gravity details for the LGH156 unit.

Accessory Installation Details

Outdoor Air Hood and Relief Dampers

Illustrates the outdoor air hood and optional horizontal barometric relief dampers.

Hybrid Roof Curb Installation

Details the design and dimensions of hybrid roof curbs for double duct openings.

Adjustable Pitch Curb Installation

Shows the design and dimensions of the adjustable pitch curb for double duct openings.

Ceiling Diffuser and Transition Dimensions

Provides dimensions for step-down and flush ceiling diffusers and associated transitions.

Horizontal Roof Curb Installation

Details horizontal roof curb requirements and dimensions for various applications.

Ceiling Diffuser Dimension Details

Lists detailed dimensions for step-down and flush ceiling diffusers.

Revisions

Catalog Number Updates

Lists sections where catalog numbers have been revised.

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