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General| Brand | Lennox |
|---|---|
| Model | LGH092H |
| Category | Air Conditioner |
| Language | English |
Provides dimensional details of the unit's end profile.
Displays the unit's dimensions and layout from a top perspective.
Details the unit's dimensions and features from a side profile.
Details the contents of the unit's packaging and shipping.
Specifies required clearances around the unit for installation and service.
Highlights critical safety precautions and hazards associated with the unit.
Instructions for supporting units in downflow discharge configurations.
Guidelines for using or selecting a roof mounting frame for unit installation.
Procedures for properly connecting ductwork to the unit.
Instructions and safety for lifting and moving the unit.
Guidance on making condensate drain connections and trap requirements.
Steps and requirements for connecting the unit's gas supply piping.
Procedures for safely pressure testing gas piping connections.
Information on adjusting unit performance for high altitude installations.
Instructions for making power supply and wiring connections to the unit.
Guidelines for selecting an optimal location for the room thermostat.
General instructions for connecting unit controls and thermostat wiring.
Wiring instructions for connecting standard thermostats to the unit controller.
Wiring procedures for using a room sensor to control the unit.
Specific wiring requirements for units with hot gas reheat functionality.
Overview of blower operational modes and thermostat control.
Procedures for accessing the blower assembly for service.
Methods for calculating and verifying unit airflow (CFM) based on specs.
Instructions for proper alignment and tensioning of blower belts.
Guidelines for checking and verifying correct blower belt tension.
Essential checks to perform before initiating unit start-up.
Step-by-step guide for starting the unit's cooling operation.
Details on R410A refrigerant properties, pressures, and handling.
Control logic for units with two condenser fans based on conditions.
Control logic for units with three condenser fans based on conditions.
Initial steps for putting the gas heating unit into operation.
Procedures for safely shutting off the gas supply to the unit.
Describes the step-by-step process of the unit's heating cycle.
Information on factory-set limit controls and their function.
Details on adjusting heating parameters like manifold pressure.
Procedures for starting up electric heating options.
Setup and adjustment for the SCR controller in electric heat systems.
Inputting design specified blower CFM values into the unit controller.
Determining and setting the highest blower CFM for unit operation.
Navigating the unit controller menu to input blower CFM settings.
Configuring minimum damper positions for ventilation air volumes.
Instructions for configuring or bypassing the inverter VFD.
Cooling operation sequence with a two-stage thermostat.
Cooling operation sequence with a three-stage thermostat or room sensor.
Setting the desired blower speed based on design CFM and static pressure.
Configuring minimum damper positions for ventilation in direct drive systems.
Introduction to the hot gas reheat mode and its functionality.
Operation of the solenoid valve controlling hot gas to the reheat coil.
How to adjust the setpoint for energizing the reheat function.
Procedure for testing and verifying hot gas reheat operation.
Default operational modes for reheat based on thermostat demands.
Guidelines for inspecting, cleaning, and replacing air filters.
Information on motor lubrication requirements.
Inspection, cleaning, and adjustment of gas burners.
Maintenance and cleaning procedures for the combustion air inducer.
Cleaning and maintenance of the unit's flue passageway and box.
Information regarding the installation and function of heat exchanger inserts.
Cleaning and inspection procedures for the evaporator coil.
Maintenance and cleaning guidelines for the condenser coil.
Inspection and cleaning of the supply air blower wheel.
Notes on compressor replacement and internal protectors.
Configuration settings for units using a BACnet network module.
Settings for units utilizing room sensors or CPC/LSE gateways.
Target settings for units integrated with a BACnet module.
