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General| Brand | Lennox |
|---|---|
| Model | VRB Series |
| Category | Heating System |
| Language | English |
Covers critical safety notices regarding operation, handling, and warnings.
Describes the VRB heat recovery outdoor units and lists components in the shipping package.
Warns against electrical shock, fire, or explosion hazards during unit operation.
Explains the coding system used for identifying VRF outdoor unit model numbers.
Emphasizes following engineered piping designs and reporting any changes.
Details essential considerations for outdoor unit placement, including clearances and interference.
Specifies distances from exhaust vents and recommendations for coastal installations.
Defines required clearance in front of the unit for access to service doors.
Specifies clearance requirements around the unit to avoid air recirculation.
Details clearance needed above the unit to ensure proper discharge airflow.
Advises on locating units away from snow/ice hazards and installing protective measures.
Illustrates securing units to weather-resistant supports and managing defrost water.
Guides on unit placement to avoid direct exposure to winter prevailing winds.
Details requirements for installing air discharge ducts, including design and louvers.
Table showing static pressure settings and corresponding descriptions for unit configuration.
Details rules for arranging multiple outdoor units based on capacity and elevation.
Provides guidelines for mounting units on slabs or roofs, emphasizing structural support.
Warns about refrigerant leaks and provides safety procedures for handling them.
Outlines essential practices for refrigerant piping, including insulation and connection methods.
Lists system piping length limits and advises contacting support for assistance.
Offers tables for selecting main pipe diameters for outdoor units based on capacity.
Provides tables for selecting indoor unit main pipe diameters based on capacity.
Details pipe selection for outdoor unit connection pipes.
Specifies selection criteria for outdoor unit branch pipe assemblies.
Guides selection of indoor unit auxiliary pipes based on capacity.
Details best practices for brazing refrigerant piping, including nitrogen flow and flux usage.
Outlines the specifications for performing pressure tests on the refrigerant system.
Describes the step-by-step procedure for triple evacuation of the refrigerant system.
Details how to connect and install multiple outdoor units together, ensuring proper piping.
Outlines installation rules, piping connections, and operational modes for mode selection boxes.
Provides critical safety warnings regarding power supply, wiring, and circuit protection.
Details proper grounding, wiring installation, and avoiding interference for the unit.
Identifies power and communication terminal strips and their connection points.
Explains the functions of the digital display for normal and operating modes.
Identifies and describes the various ports and components on the main board.
Guides on navigating the LCD display, using buttons, and entering the service tool.
Details the information displayed on the main screen, including voltage, mode, and status.
Covers parameters for installation info, commission date, and DIP switch settings.
Details settings for indoor temperature units, priority, lockout, target temperatures, and demand control.
Explains how to perform operations like test runs, defrost, and refrigerant recycling.
Details DIP switch settings for configuring the outdoor unit type and temperature sensor.
Explains DIP switch settings for indoor unit quantity and network address assignment.
Outlines the various silence mode settings available for the outdoor unit.
Lists functions available within the Service Mode, such as testing and defrost.
Describes settings for snow blowing mode, temperature units, and energy saving.
Explains how to navigate and query system parameters using SW3 and SW4 buttons.
Lists various system parameters, their descriptions, and value units for monitoring.
Details reserved parameters, software version, and notes on display functionality.
Illustrates the typical power wiring connections for indoor and outdoor units.
Shows the typical communication wiring diagram between units and boxes.
Lists error codes displayed on the digital display and their corresponding definitions.
