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Nu-Air NU0103 - User Manual

Nu-Air NU0103
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OPERATING, MAINTAINING & INSTALLING YOUR LIGHT COMMERCIAL
HEAT RECOVERY VENTILATOR
IMPORTANT READ AND SAVE THESE INSTRUCTIONS
* LEAVE THIS DOCUMENT WITH THE BUILDING OWNER
Specifications, dimensions and ratings may change without notice
due to ongoing product development and improvements.
For products using controller NU-HRV Rev F manufactured April 2013 or later
NU0103, NU0305, NU0406, NU0508, NU0912, NU1316
NU305, NU500, NU600, NU800, NU1200, NU1600
INSTALLATION AND WIRING MUST BE IN ACCORDANCE WITH CEC, NEC AND
LOCAL ELECTRICAL CODES.
P.O. Box 2758
Windsor, Nova Scotia, B0N 2T0
Ph. 902-798-2261 Fax: 902-798-2557
www.nu-airventilation.com
E-mail: nuair@nu-airventilation.com

Questions and Answers

  • M
    Matthew ButlerAug 7, 2025
    How to improve poor air flow in my Nu-Air NU0103?
    • R
      Ryan DayAug 7, 2025
      To address poor air flow in your Nu-Air Heating System, ensure the HRV is correctly balanced. Inspect and tape all joints. Use proper airflow measuring equipment. Open grills and remove any obstructions in the ducts, hoods, and grills. Clean the filter. If problems persist, consult a professional.
  • M
    monica05Aug 12, 2025
    What to do if there is water in the bottom of my Nu-Air NU0103?
    • A
      alexisjohnsonAug 12, 2025
      To fix water at the bottom of your Nu-Air HRV, check for kinks in the drain lines and ensure proper water drain connections, making sure water drains from the pan. Also, ensure the HRV is level and that the heat exchange core is properly installed.
  • A
    Amy GreerAug 16, 2025
    Why are the humidity levels too high in my Nu-Air Heating System?
    • M
      morganraymondAug 17, 2025
      If your Nu-Air Heating System's humidity levels are too high, balance the airflow and set the dehumidistat. The causes could be incorrectly balanced HRV air flows, an undersized HRV, high humidity areas not being properly ventilated, or a malfunctioning dehumidistat.
  • B
    brittneybaileyAug 20, 2025
    What to do if the outside duct of my Nu-Air NU0103 Heating System has ice build-up?
    • J
      Jason CannonAug 20, 2025
      If you notice ice build-up or condensation on the outside duct of your Nu-Air Heating System, tape all joints and ensure the vapor barrier is completely sealed and insulated around the insulated duct. This is likely due to an improperly installed vapor barrier.
  • S
    Steve ValdezAug 25, 2025
    What to do if the dehumidistat is not working in my Nu-Air NU0103?
    • K
      Kathleen DyerAug 25, 2025
      If your Nu-Air Heating System's dehumidistat isn't working, check the outside wiring for shorts and ensure the wall switch is correctly connected. Verify that the wires are connected to the proper terminals at the HRV. This could be due to an incorrect connection of the outside low voltage wiring between the HRV and the dehumidistat.
  • W
    William MataAug 29, 2025
    Why are the humidity levels too low in my Nu-Air NU0103?
    • K
      kevinburtonAug 29, 2025
      If humidity levels are too low in your Nu-Air Heating System, balance the air flows and increase the dehumidistat setting. It may also be necessary to add humidifiers. This issue can arise from incorrectly balanced HRV air flows or a dehumidistat control set too low.
  • C
    Christina Palmer DDSSep 2, 2025
    What causes frosting up of HRV and/or Duct(s) in my Nu-Air NU0103 Heating System?
    • H
      huberharrySep 2, 2025
      If the HRV and/or ducts of your Nu-Air Heating System are frosting up, balance the HRV, install dampers, and check the defrost system. Keep in mind that minimal frost build-up is expected on the cores before the unit initiates a defrost cycle. This can be caused by incorrectly balanced HRV air flows or a malfunctioning HRV defrost system.

Nu-Air NU0103 Specifications

General IconGeneral
BrandNu-Air
ModelNU0103
CategoryHeating System
LanguageEnglish