Nortek B6VM Series User Manual

AIR HANDLER
B6BM, B6EM, & B6VM SERIES
INSTALLATION INSTRUCTIONS
IMPORTANT
ATTENTION INSTALLERS:
It is your responsibility to know this product better than your customer. This includes being
able to install the product according to strict safety guidelines and instructing the customer on
how to operate and maintain the equipment for the life of the product. Safety should always be
the deciding factor when installing this product and using common sense plays an important
role as well. Pay attention to all safety warnings and any other special notes highlighted in the
manual. Improper installation of the furnace or failure to follow safety warnings could result in
serious injury, death, or property damage.
These instructions are primarily intended to assist qualified individuals experienced in the proper
installation of this appliance. Some local codes require licensed installation/service personnel
for this type of equipment. Please read all instructions carefully before starting the installation.
Return these instructions to the customer’s package for future reference.
DO NOT DESTROY. PLEASE READ CAREFULLY & KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

Nortek B6VM Series Specifications

General

Airflow Range	600 to 2000 CFM
Configuration	Horizontal, Vertical
Static Pressure	Up to 1.0 in. wg
Motor Type	ECM
Unit Construction	Galvanized steel
Insulation	Foil-faced insulation

Summary

Attention Installers

Attention Installers

Essential safety and responsibility guidelines for installers, emphasizing product knowledge and adherence to safety.

Important Safety Information

Electrical Shock, Fire, or Explosion Hazard

Warnings about electrical hazards, fire, and explosion during installation and servicing.

Nitrogen Hazard

Precautions when handling units with nitrogen holding charge, potential risks, and qualified personnel requirements.

Requirements & Codes

Installation Warnings and Compliance

Emphasizes adherence to local codes and safety recommendations for proper installation and operation.

General Information

Before You Install this Unit

Steps to take before proceeding with unit installation, including inspection and supply checks.

Locating the Air Handler

Guidance on selecting the optimal location, considering clearances, access, and noise.

Minimum Clearances

Specifies required clearances around the unit for proper installation and service access.

Installation in a Garage

Safety considerations and requirements for installing the unit in a residential garage.

Plenums & Air Ducts

Standards and methods for installing supply and return air plenums and ducts.

Air Handler Installation

Packaging Removal

Instructions for safely removing the unit from its shipping carton and inspecting for damage.

Mounting Applications

Overview of various mounting orientations like upflow, downflow, and horizontal.

Upflow Installations

Details on performing an upflow installation, including drain pan removal.

Downflow Installations

Requirements and procedures for installing the unit in a downflow configuration.

Horizontal Installations

Guidance on installing the unit horizontally in various locations like attics or basements.

Filter Operation Warning

Crucial warning about never operating the unit without a filter or with doors removed.

Horizontal Left Installations

Step-by-step instructions for horizontal left airflow installations.

Horizontal Right Installations

Step-by-step instructions for horizontal right airflow installations.

Circuit Breaker Cover Installation

Instructions for installing the circuit breaker cover for heater kits.

Refrigerant Line Connections

Nitrogen Warning

Safety precautions when handling refrigerant lines and nitrogen charge.

Orifice Removal & Installation

Procedures for removing and installing the correct orifice for system matching.

Connecting the Linesets

Steps for properly connecting the refrigerant linesets, including brazing precautions.

Condensate Drainage

Leveling and Trap Requirements

Importance of unit leveling and proper condensate trap installation to prevent damage.

Electrical Connections

Electrical Shock, Fire, or Explosion Hazard

Warnings regarding electrical hazards during installation and servicing.

Pre-Electrical Checklist

Essential checks before making electrical connections to ensure compatibility and safety.

Line Voltage

Guidelines for proper line voltage wiring, disconnects, and circuit protection.

Thermostat Connections

Instructions for connecting thermostat wiring and precautions for isolation.

Grounding

Requirements for proper unit grounding to prevent electrical hazards.

Control Board

Overview of the control board's functions and timing sequences.

Twinning

Instructions for connecting two air handlers to a single outdoor unit.

Heater Kits

Procedures for installing electric heater kits and their wiring.

Humidifier

Information on connecting a humidifier to the unit's power output.

Dehumidification Options

How to configure the unit for enhanced humidity removal by adjusting CFM.

Electronic Air Cleaner (EAC)

Information on connecting an electronic air cleaner to the unit.

Startup & Adjustments

Before You Start the Unit

Checklist of essential inspections before powering up the unit for the first time.

Air Circulation

Details procedures for continuous blower operation, fan modes, system cooling, system heating, and minimum electric heat airflow selection.

Blower Configurations

Covers determining nominal system capacity, 3-speed units, and high-efficiency motor configurations.

Basic Heating Airflow for Variable & Fixed Speed

How to set heating airflow for variable and fixed speed motors using dip switches.

Basic Cooling / Heat Pump Airflow for Variable & Fixed Speed

How to set cooling/heat pump airflow for variable and fixed speed motors.

Troubleshooting

Operational Checks

Basic checks to perform if the air handler fails to operate correctly.

Unit Maintenance

Air Filter Replacement

Guidelines for cleaning or replacing air filters for optimal performance and longevity.

Blower Compartment Cleaning

Instructions for cleaning the blower compartment to prevent overheating and maintain efficiency.

Blower Fan Wheel Inspection

How to inspect and clean the blower fan wheel for accumulated dirt.

Blower Motor & Assembly Inspection

Checking blower motor and mounting brackets for tightness and corrosion.

Refrigerant Charging

Evacuation and Charging Procedures

Steps for evacuating and charging the system, including safety warnings.

Installation Checklist

Installer Information

Fields for installer name, city, state, and address.

Electrical System Checks

Checklist items related to electrical connections, voltage, and thermostat calibration.

Unit Installation and Drainage Checks

Verifies proper unit installation, leveling, and condensate drain functionality.

Proposition 65 Warning

Legal disclaimer regarding chemicals known to cause cancer and birth defects.