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My ventilator isn't moving as much air as I anticipated. Why?
Energy Recovery Ventilators
a) The fan wheel may be operating backwards. Check for correct rotation and adjust if necessary. b) The filters and/or energy wheel may be dirty. Replace filters and/or follow the cleaning procedures found in the OIPM. c) Your system may have too much static pressure. Check than fan to duct connections are correct and make sure dampers are open appropriately.
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Why does my energy wheel run irregularly?
Energy Recovery Ventilators
a) The wheel motor overloads may be tripping due to rubbing between the wheel and air seals. Recheck air seals and make sure they are not too tight. See Energy Recovery Wheel section in OIPM.
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Why doesn't my energy wheel turn?
Energy Recovery Ventilators
a) The air seals may be too tight. See Energy Recover Wheel section in the OIPM. b) There may be no power to the wheel motor. Make sure the wheel drive is plugged in/connected and verify that power is available. c) The wheel belt may be loose or broken. Adjust belt tension or replace if necessary.
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Why is my energy recovery ventilator so noisy?
Energy Recovery Ventilators
a) The fan wheel may be rubbing on the inlet. Adjust wheel and/or inlet cone. Tighten wheel hub or bearing collars on shaft. b) The bearings may be loose defective. Tighten collars and fasteners or replace bearings. c) The fan wheel may be out of balance. Remove any excess build up on wheel or replace if necessary.
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Why will my energy recovery ventilator not operate?
Energy Recovery Ventilators
a) You may have a blown a fuse or breaker. Repair or replace. b) The switch may be in the OFF position. Turn switch to ON position. c) The unit may be wired incorrectly. Shut power OFF and check wiring for proper connections. d) The motor horse power may be too large. Check that motor horse power is correct and not tripping overloads.
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