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Venmar PRO250 - User Manual

Venmar PRO250
24 pages
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Installation and User Manual
PRO225 & PRO250
HEAT RECOVERY VENTILATORS
READ AND SAVE THESE INSTRUCTIONS
Venmar Ventilation inc., 550 Lemire Blvd., Drummondville, QC, Canada J2C 7W9
www.venmar.ca
VB0121
These products earned the
ENERGY STAR
®
by meeting strict
energy efficiency guidelines set by
Natural Resources Canada and the
US EPA. They meet ENERGY STAR
requirements only when used
in Canada.
08305 rev. C

Questions and Answers

  • S
    Susan TorresAug 5, 2025
    How to fix air that is too dry with my Venmar PRO250 Fan?
    • J
      James YangAug 5, 2025
      To address overly dry air: * Use a humidifier temporarily. * Set the unit at low speed using the integrated control.
  • J
    Jason WalkerAug 9, 2025
    What to do if nothing works on my Venmar PRO250 Fan?
    • D
      Daniel PetersonAug 9, 2025
      First, verify that the unit is correctly plugged into the power outlet. Then, check if the unit is receiving power from the house circuit breaker or fuse. Ensure that the breaker hasn't tripped or the fuse hasn't blown.
  • S
    smithcourtneyAug 13, 2025
    Why is there condensation on windows with my Venmar Fan?
    • A
      Andrew WattsAug 13, 2025
      Condensation on windows, indicating overly humid air, can be addressed by several actions: * Adjust the humidity control knob according to the instructions. * Leave curtains partially open to improve air circulation. * Store firewood in a closed room with a dehumidifier, a well-ventilated area, or ideally, outside. * Maintain a house temperature above 18°C (64°F). * Increase the unit's speed during activities that generate significant humidity, such as large gatherings or extensive cooking.
  • B
    Bryan MitchellAug 17, 2025
    What to do if the LED of my Venmar PRO250 Fan integrated control is blinking amber?
    • A
      Austin BishopAug 17, 2025
      If the LED of the integrated control is blinking amber, it indicates a problem with the motorized damper. The unit is OFF. For a 2½-hour period, the unit will try to reset the damper at every 30 minutes. After 2½ hours, if the problem is not solved, the unit stops trying to reset damper. Check control wiring.
  • A
    andrea16Aug 21, 2025
    Why is the air too cold at the air supply grille of my Venmar Fan?
    • T
      Timothy JeffersonAug 21, 2025
      If the air is too cold at the air supply grille, take the following steps: * Ensure that the outside ports are not blocked. * Set the unit at low speed using the integrated control. * For PRO250 units with Breeze control, set the unit at minimum speed (MIN.).
  • T
    Tonya CastroAug 27, 2025
    What to do if the LED of my Venmar PRO250 Fan integrated control is blinking red?
    • P
      pfreemanAug 27, 2025
      If the LED of the integrated control is blinking red, it means there is a problem with the exhaust motor. The unit is OFF.
  • S
    Susan FritzAug 30, 2025
    What to do if the LED of my Venmar Fan integrated control is blinking green?
    • S
      Steven BranchAug 30, 2025
      If the LED of the integrated control is blinking green, it indicates a problem with the thermistor. The unit is still working, but will defrost frequently.

Summary

Functions of Your Heat Recovery Ventilator

1.1 Air Exchange

Explains how the unit exhausts stale air and brings in fresh air for improved indoor air quality.

1.2 Heat Recovery Process

Details how the unit transfers heat between stale and fresh air streams to reduce energy costs.

1.3 Recirculation Mode (PRO250 Only)

Describes the unit's recirculation function for air purification without exterior exchange.

Diagrams of Airflows

Description of the Unit Components

Unit Installation Procedures

4.1 Installation Types and Site Selection

Outlines house configurations, kits, and ideal unit placement for installation.

4.3 Tools, Materials, and Hanging

Lists necessary tools, materials, and covers the unit hanging procedure.

4.5 Ductwork Planning and Installation

Covers duct planning, installing flexible ducts, and connecting registers.

4.7 Connecting Ducts and Drain

Details connecting ducts to ports, exterior ports, and the drainage system.

Controls and Operation

5.1 Integrated Control Functions

Explains the operation and LED indicators of the unit's built-in control.

5.2 Controls Connection to the Unit

Details how to properly connect external controls to the unit's terminal block.

5.3 Main Control Installation

Guides on installing the main control panel, including wiring connections.

Operating Controls and Settings

6.1 Breeze Main Control (PRO250)

Explains Breeze control operation for PRO250, including air supply and humidity adjustments.

6.2 11136 Main Control (PRO225)

Details usage of 11136 control for PRO225, focusing on humidity level selection.

6.3 20-Minute Push Button Auxiliary Control

Describes the purpose and operation of the optional 20-minute lighted push button control.

Maintenance Procedures

7.1 Regular Maintenance

Outlines routine tasks like cleaning filters, checking ports, and core care.

7.2 Annual Maintenance

Details recommended annual service checks, including core, blades, and tray cleaning.

Troubleshooting Common Issues

Venmar PRO250 Specifications

General IconGeneral
BrandVenmar
ModelPRO250
CategoryFan
LanguageEnglish

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