Lifebreath 200STD - Troubleshooting Common HRV Issues; Humidity Level Problems and Solutions; Remote Switch and Frosting Issues; Airflow and Water in Unit Issues

TROUBLESHOOTING YOUR HRV
SYMPTOM
Humidity levels too low
Humidity levels too high
Remote switch is not
operating
HRV and/or Ducts Frosting up
Supply air feels cool
Water in bottom of HRV
Condensation or ice build up in
insulated duct to outside
IUSE
1 HRV air flows improperly balanced
1 Dehumidistat control set too low
■ Lifestyle of occupants
• HRV air flows improperly balanced
• HRV undersized initially
• Dehumidistat set too high
• HRV undersized to handle hot tub, indoor pool etc.
• Lifestyles of occupants
• HRV not operating or malfunctioning
* Improper connection to external 24V board
* Improper connection of external low voltage wiring
between HRV and remote switch
* External low voltage is shorted out by a staple,
nail, etc.
* Malfunction with 24V transformer in HRV
► HRV air flows improperly balanced
► Back draft dampers not installed or working when
HRV is turned off
* Malfunction with HRV's defrost system
* HRV air flows improperly balanced
* Poor location of supply grilles
► Outdoor temperature extremely cold
* Drain pans plugged
* Improper connection of HRV's drain lines
► HRV is not level
* Drain lines obstructed
► HRV heat exchange core not installed properly
1 Incomplete vapour barrier around insulated duct
► HRV air flow improperly balanced
* Filters/Core plugged up
► 1/4" mesh on outside hoods plugged up
* House grilles closed
► Dampers closed
► Poor power supply
* Improperly sized ducting
* Under sized HRV
► Improper speed control setting
* Malfunction with HRV
• Balance HRV
• Set dehumidistat higher
»Humidity may have to be
artificially added via humidifiers
• Balance HRV
• Set dehumidistat
• Cover pools, hot tubs etc. when not
in use
• Avoid hanging clothes to dry,
storing wood and venting clothes
dryer inside
• Check 24V board on HRV to
ensure unit able to jump to high speed
• Check external wiring for short
• Check wall switch for proper connection
• Note minimal frost build up is expected
on cores before unit initiates defrost
cycle function
• Balance HRV
• Install backdraft dampers
• Balance HRV
• Locate grilles high on walls or
under baseboards
• If supply air is installed into return of furnace,
furnace fan may need to run continuously to
distribute ventilation air comfortably
• Ensure O-Ring on drain nozzle sits properly
• Look for kinks in line
• Check water drain connections
• Make sure water drains properly from pan
• Tape all joints
• Ensure that vapour barrier is completely
sealed
• Tape all joints
• Use proper air flow measuring equipment
• Open all grilles
• Remove obstructions in duct(s), hoods,
and grilles
• Balance air flows
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