Lennox LRP14GE48 - User Manual

Page 1
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.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
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. Unit must be properly grounded in
accordance with national and local codes.
Line voltage is present at all components when
unit is not in operation on units with single-
pole contactors. Disconnect all remote electric
power supplies before opening access panel.
Unit may have multiple power supplies.
LRP14HP/AC/GE/GN
LRP16GE/HP
Table of Contents
Specications – LRP14HP .............................................2
Specications – LRP14AC ............................................3
Specications – LRP14GE / LRP14GX ......................... 4
Specications – LRP14GN ............................................ 5
Specications – LRP16GE / LRP16GX ......................... 6
Specications – LRP16HP ............................................7
Electric Heat Capacities – LRP14HP and AC Models –
LRP16HP .......................................................................8
Gas Heat Capacities – LRP14GE Only ......................... 8
Gas Heat Capacities – LRP16GE Only ......................... 8
Gas Heat Capacities – LRP14GN Only .........................8
Electrical .......................................................................9
Typical Parts Arrangement ..........................................16
Unit Applications ..........................................................18
Blower Data – LRP14HP .............................................23
Blower Data – LRP14AC ............................................. 24
Blower Data – LRP14GE / LRP14GX...........................25
Blower Data – LRP14GN..............................................26
Blower Data – LRP16GE / LRP16GX...........................27
Blower Data – LRP16HP ..............................................28
Wiring Diagrams and Sequence of Operation .............. 35
LRP14GN – Heating Components and Operation........46
Service Literature
UNIT INFORMATION
Corp. 100032
October 7, 2021
LRP14HP/LRP14AC/LRP14GE/LRP14GN/LRP16GE/LRP16HP SERIES UNITS
The LRP14/16 series packaged units are available in siz-
es ranging from 2 through 5 tons (7.0 through 17.6 kW).
The LRP14/16 unit is designed for HFC-410A refrigerant
and for outdoor residential use only. Units can be installed
at ground level or on rooftops. The LRP14 units utilize a
scroll compressor. LRP16GE/GX/HP units utilize a two-
stage compressor. Information contained in this manual is
intended for use by qualied service technicians only. All
specications are subject to change. Procedures outlined
in this manual are presented as a recommendation only
and do not supersede or replace local or state codes.

Summary

Unit Specifications

LRP14 Series Specifications

Detailed specifications for LRP14HP, AC, GE/GX, and GN models, covering performance and components.

LRP16 Series Specifications

Detailed specifications for LRP16GE/GX and LRP16HP models, covering performance and components.

LRP14 HP & LRP14 AC Specifications

Detailed specs for LRP14HP and LRP14AC models, covering cooling/heating performance and components.

LRP14 GE;GX & LRP14 GN Specifications

Specs for LRP14GE/GX and LRP14GN models, including cooling performance and gas heat.

LRP16 GE;GX & LRP16 HP Specifications

Specs for LRP16GE/GX and LRP16HP models, covering performance and components.

Heat Capacities, Electrical Data, and Derate

Heat Capacity Data

Electric and gas heat capacity values for various LRP models.

Electrical Data and Protection

Key electrical specifications, including OCP and ampacity for LRP models.

High Altitude Derate

Manifold pressure adjustments for units installed at higher altitudes.

Unit Components, Operation, and Controls

Parts Arrangement and Components

Diagrams illustrating unit parts layout and component identification.

Unit Applications and Operation

Overview of unit applications, components, and operational principles.

Ignition and Defrost Control Systems

Explanation of ignition system, defrost control, and diagnostic codes.

Blower System, Wiring, and Sequence

Blower Control and Data

Details on blower control boards, speed adjustment, and air volume data.

Wiring Diagrams

Electrical wiring diagrams for various LRP unit configurations.

Sequence of Operation

Step-by-step operational sequences for cooling, heating, and defrost modes.

Lennox LRP14GE48 Specifications

General

Blower Motor Type	ECM
Heating Capacity	48, 000 BTU/h
Ignition Type	Hot Surface Ignition
Voltage	115V
Stages	Single Stage
Maximum External Static Pressure	0.5 in. wc