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Lifebreath RNC 88 User Manual

Lifebreath RNC 88
56 pages
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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 RNC 88 Specifications

General IconGeneral
BrandLifebreath
ModelRNC 88
CategoryFan
LanguageEnglish

Summary

Pre-Installation Notes

Installation Procedures

Location Notes

Guidance on selecting an appropriate location for installing the HRV unit for optimal performance.

Simplified Installation (Return/Return Method)

Details the simplified installation procedure using the return/return method.

Partially Dedicated System Installation

Explains the installation process for a partially dedicated system.

Fully Dedicated System Installation

Details the installation procedure for a fully dedicated HRV system.

HRV Components and Hardware

Duct Configurations (195DCS)

Explains the default and optional duct configurations for the 195DCS model.

Mounting HRV Units

Provides instructions for mounting various HRV models, including RNC4-TPD, RNC4-TPF, and RNC88.

Hanging Straps

Details the installation and use of hanging straps for HRV mounting.

Drain Connection

Instructions for properly connecting the HRV's drain system for condensate removal.

Grilles

Information on Kitchen and TechGrilles, including part numbers and specifications.

Grille Fittings

Describes various grille fitting types for installation, such as Quick Mount and Terminator.

Weather Hoods

Installation guidelines for Lifebreath Weather Hoods, including placement requirements.

Dual Hood

Details on the Lifebreath Dual Hood, its specifications, and installation considerations.

Controls, Wiring, and Accessories

Terminal Blocks

Overview of TB01 and TB04 terminal blocks for HRV wiring connections.

Main Control Installation (99-DXPL03)

Step-by-step guide for installing the 99-DXPL03 main control unit.

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

Instructions for installing the 99-BC02/03/04 ventilation controls.

Interlocking the HRV

Guidance on interlinking the HRV with furnace/air handler systems for synchronized operation.

Additional Controls

Information on setting standby mode and adding dry contact controls for advanced HRV operation.

Timers

Details on installing and configuring 20/40/60 minute, mechanical, and wireless timers for HRV control.

Repeater

Instructions for installing and pairing the 99-RX02 repeater to extend wireless timer range.

Performance Settings and Balancing

Installer Selectable High Speed Settings

Guide to adjusting DIP switches for selecting different high speed fan settings.

Balancing Airflows

Procedures and methods for balancing HRV airflows, including CFM determination.

Troubleshooting and Maintenance

Poor Airflows

Troubleshooting steps for low or imbalanced airflow issues in the HRV.

Supply Air Feels Cold

Causes and solutions for supply air feeling cold, often related to occupant comfort.

Dehumidistat Not Operating

Troubleshooting steps when the dehumidistat function is not working correctly.

High Humidity and Window Condensation

Addressing high humidity and window condensation through HRV settings and home habits.

Humidity Levels Too Low

Troubleshooting steps for low humidity levels, potentially requiring humidifiers.

HRV and Duct Frosting

Diagnosing and resolving frosting issues on the HRV or ductwork.

Condensation/Ice in Exterior Ductwork

Addressing condensation or ice formation within insulated exterior ductwork.

Excess Water in HRV Bottom

Troubleshooting excess water accumulation in the HRV unit's bottom.

Excessive Vibration

Identifying and resolving causes of excessive vibration from the HRV unit.

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