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Lifebreath RNC6 ES - User Manual

Lifebreath RNC6 ES
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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

  • J
    Jason DickersonAug 14, 2025
    How to improve poor airflow in my Lifebreath Fan?
    • J
      Jake GutierrezAug 14, 2025
      Poor airflow in your Lifebreath Fan can stem from several issues. Start by cleaning any plugged exterior hoods or vents. Next, remove and clean the filter. Also, ensure that the core is free from obstructions by removing and cleaning it. Check that all house grilles are open and unobstructed. If dampers are installed, make sure they are open and properly adjusted. It's also important to have an electrician verify the power supply voltage. Confirm the ductwork isn't restricting the HRV, and increase the HRV speed if the speed control setting is too low. If issues persist, have a contractor balance the HRV airflow.
  • D
    Denise MaxwellAug 17, 2025
    What to do if humidity levels are too high with Lifebreath RNC6 ES Fan?
    • S
      stephanie08Aug 17, 2025
      High humidity levels and condensation on windows when using a Lifebreath Fan can be addressed by several adjustments. First, lower the dehumidistat setting. If you have a hot tub or indoor pool, cover them when not in use. Try to avoid hanging clothes to dry indoors, storing wood inside, or venting the clothes dryer inside. Ensure the crawl space is vented and has a vapor barrier. Increase the speed of the HRV unit. Also, ensure ducts from the washroom are adequately sized to remove moist air effectively; using a bathroom fan can help remove additional moisture.
  • D
    Dr. Dustin BurkeAug 21, 2025
    What to do if the dehumidistat is not operating on my Lifebreath RNC6 ES Fan?
    • J
      Julie RamosAug 21, 2025
      If the dehumidistat on your Lifebreath Fan isn't working, consider these potential causes. First, if the outdoor temperature is above 15°C (59°F), the dehumidistat is likely functioning normally. Otherwise, check that the correct terminals have been used for the low voltage connection, and inspect the external wiring for any shorts caused by staples or nails. Also, ensure the dehumidistat is not set to the OFF position; adjust it to the desired setting.
  • S
    Samuel MossAug 25, 2025
    Why does the supply air from my Lifebreath RNC6 ES Fan feel cold?
    • E
      Ethan JonesAug 26, 2025
      If the supply air from your Lifebreath Fan feels cold, consider these points: * Relocate supply grilles to high on the walls or under the baseboards, or install ceiling-mounted diffusers to avoid direct airflow on occupants. * If the outdoor temperature is extremely cold, reduce the HRV supply speed; a small duct heater (1 kW) can also temper the supply air. * Ensure furniture placement or closed doors aren't restricting air movement; if the supply air is ducted into the furnace return, the furnace fan may need to run continuously.
  • W
    watsonjennyAug 29, 2025
    How to improve poor airflows in Lifebreath Heating System?
    • D
      daniel40Aug 29, 2025
      Poor airflow in your Lifebreath Heating System can stem from several causes. Start by cleaning any plugged exterior hoods or vents. Check and clean the filters and the core. Ensure that house grilles and dampers, if installed, are open and properly adjusted. Have an electrician inspect the power supply voltage. Review duct installation to ensure it's not restricting the HRV. Increase the HRV speed if the speed control setting is too low. If issues persist, have a contractor balance the HRV.
  • J
    John WilliamsSep 2, 2025
    Why are humidity levels too high with Lifebreath Heating System?
    • H
      Hannah AcostaSep 2, 2025
      High humidity levels and condensation in your home when using a Lifebreath Heating System can be addressed by several adjustments. Begin by setting the dehumidistat to a lower level. If you have a hot tub or indoor pool, ensure they are covered when not in use. Avoid drying clothes indoors, storing wood inside, and ensure your clothes dryer is properly vented. Ensure that washroom ducts are adequately sized to remove moist air, and consider using a bathroom fan. Increase the speed of the HRV. Note that condensation may appear during seasonal changes on humid days.
  • E
    Erik ChaseSep 5, 2025
    Why does supply air feel cold from Lifebreath Heating System?
    • M
      Mary SchultzSep 5, 2025
      If the supply air from your Lifebreath Heating System feels cold, consider these factors: The location of supply grilles might be causing discomfort; relocate them higher on the walls or under baseboards, or install ceiling-mounted diffusers. If the outdoor temperature is extremely cold, reduce the HRV supply speed or consider using a small duct heater. Ensure furniture or closed doors aren't restricting air movement. If supply air is ducted into the furnace return, the furnace fan may need to run continuously.
  • C
    Carrie WagnerSep 9, 2025
    What to do if dehumidistat is not operating on Lifebreath Heating System?
    • L
      leblancericSep 9, 2025
      If the dehumidistat on your Lifebreath Heating System isn't working, first, check if the outdoor temperature is above 15°C (59°F), as the dehumidistat may be functioning normally (see Auto Dehumidistat Disable in this manual). Verify the low voltage connections and check for shorts in the external wiring caused by staples or nails. Also, ensure the dehumidistat is not set to the OFF position and adjust it to the desired setting.

Summary

Pre-Installation Notes

Location Notes

Simplified Installation

Partially Dedicated System Installation

Fully Dedicated System Installation

Default & Optional Duct Configurations

Mounting Methods

Drain Connection Procedure

Main Control Installation (99-DXPL03)

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

Interlocking the HRV with HVAC System

Additional Controls Setup

Setting Standby When Using the Main Control

Modifies the "fully-off" feature to "standby-off" using a jumper or by setting the main control to speed 0.

Adding Dry Contact Controls

Activates HRV for timers/dry contact controls or installation without a main control using a jumper.

Timers Installation (Wired)

Timers Installation (Wireless)

Installer Selectable High Speed Settings

Adjusting the DIP Switches

Explains how to select different high speeds using adjustable DIP switches on the circuit board.

Functionality of DIP Switches

Details the function of specific DIP switches related to recirculation enablement or disablement.

Balancing Airflows Introduction

Balancing Airflows Methods

Determining the CFM

Explains how to calculate Airflow (CFM) using velocity pressure and duct cross-section area.

Hard;Rigid Ducting

Provides instructions on adjusting and locking dampers in hard or rigid ductwork.

Insulated flexible ducting

Advises on screw placement when connecting flexible ductwork to collars to avoid damper interference.

Balancing Airflows - Pitot Tube Method

Balancing Airflows - Door Ports Method

Troubleshooting HRV Issues

Lifebreath RNC6 ES Specifications

General IconGeneral
ModelRNC6 ES
Airflow Capacity51-206 CFM @ 0.2 in. w.g.
Dimensions21.5" x 26.5" x 13.5"
Weight44 lbs
TypeEnergy Recovery Ventilator
Energy Efficiency70% sensible recovery efficiency
Voltage120V

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