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Lifebreath METRO 120D User Manual

Lifebreath METRO 120D
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Pre-Installation Notes
Note
Due to ongoing research and product development, specifications, ratings, and dimensions are
subject to change without notice. Refer to www.LIFEBREATH.com for the latest product
information.
Attention
Do not apply electrical power to the unit until after the completion of the installation (including
installation of low voltage control wiring).
Ensure the installation and wiring is in accordance with CEC, NEC, and local electrical codes.
Plug the unit into a standard designated (120 VAC) electrical outlet with ground.
The use of an extension cord with this unit is not recommended. If the installation requires
further wiring, have a licensed electrician make all of the electrical connections. The
recommended circuit is a separate 15 A/120 V circuit.
Caution
Before installation, careful consideration must be given to how this system will operate if
connected to any other piece of mechanical equipment, i.e. a forced air furnace or air handler,
operating at a higher static. After installation, the compatibility of the two pieces of equipment
must be confirmed, by measuring the airflows of the HRV, by using the balancing procedure
found in this manual. Never install a ventilator in a situation where its normal operation, lack of
operation or partial failure may result in the back drafting or improper functioning of vented
combustion equipment
Unit must be installed level to ensure proper condensate drainage. Due to the broad range of
installation and operational conditions, consider the possibility of condensation forming on
either the unit or connecting ducting. Objects below the installation may be exposed to
condensate.
Do not install control wiring alongside electrical wire.
Warning

Questions and Answers:

Lifebreath METRO 120D Specifications

General IconGeneral
BrandLifebreath
ModelMETRO 120D
CategoryHeating System
LanguageEnglish

Summary

Pre-Installation Notes

General Installation Notes

General guidance for unit installation, including product change notifications.

Electrical Safety Precautions

Essential electrical safety guidelines and precautions for installation.

Electrical Shock and Service Safety

Critical warnings about electrical shock and safe servicing practices.

Simplified Installation (Return/Return Method)

Partially Dedicated System Installation

Fully Dedicated System Installation

Installation Warnings

Specific warnings related to jurisdiction and applications.

Mounting the METRO HRV/ERVs

Mounting Caution

Important warning against drilling additional holes in the unit.

Drain Connection (HRVs Only)

Drainage Precautions

Cautions regarding temperature, slope, and secondary pans for condensate.

Lifebreath Weather Hoods

Weather Hood Placement Requirements

Guidelines for correct placement of weather hoods regarding intake and exhaust.

Lifebreath Dual Hood Installation

Installation Cautions and Compliance

Notes on sealant, insulation, and compliance with local building codes.

Main Control Installation (99-DXPL02)

Main Control Installation (99-BC02/3/4)

Installation Steps

Detailed steps for mounting and wiring the 99-BC02/3/4 main control.

Interlocking HRV/ERV with Air Handler/Furnace

Interconnection Procedure

How to wire the HRV/ERV to the furnace/air handler for continuous operation.

Timer Installation and Wiring

Wireless Timer Operation and Installation

Repeater Setup and Pairing

Installer Speed Settings

Balancing Airflows

Pressure Considerations

Effects of positive and negative house pressure on building integrity.

Balancing Airflows (Continued)

Determining Airflow (CFM)

Method for calculating airflow in CFM using velocity pressure readings.

Balancing Airflows with Pitot Tube

Pitot Tube Balancing Procedure

Step-by-step guide for balancing airflows using a pitot tube.

Troubleshooting Common Issues

Airflow Problems

Solutions for symptoms related to poor airflow, plugged filters, or blocked dampers.

High Humidity and Condensation

Addressing high humidity and window condensation with HRV/ERV settings.

Troubleshooting (Continued)

Low Humidity and Frosting Issues

Solutions for low humidity, duct frosting, and defrost system malfunction.

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