Fantech VHR150 Manuel D'installation page 10

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TROUBLESHOOTING
Problem Causes
Air is too dry Dehumidistat control is set too low
HRV out of balance
Air is too humid Dehumidistat control is set too high
Sudden change in temperature
Storing too much wood for heating
Dryer vent exhaust is inside home
Poor air circulation near windows
HRV out of balance
Well sealed basement door is closed
Persistent condensation Improper adjustment of dehumidistat control
on window
HRV out of balance
Poor air circulation near windows
Poor Air Flows 1/4" (6mm) mesh on the outside hoods is plugged
Filters plugged
Core obstructed
Indoor grilles closed or blocked
Inadequate power supply at site
Ductwork is restricting airflow
Improper speed control setting
HRV airflow improperly balanced
Ducting has fallen down or been disconnected from HRV
Supply air feels cold Poor location of supply grilles, the airflow may irritate
the occupant
Outdoor temperature extremely cold
HRV and/or Ducts frosting up HRV air flows are improperly balanced
Malfunction of the HRV defrost system
Condensation or Ice Build Up in Incomplete vapor barrier around insulated duct
Insulated Duct to the Outside
A hole or tear in outer duct covering
Note: It is best to get the unit checked by a certified HVAC Contractor/Technician.
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Solutions
Increase the desired level of humidity. Change ventilation mode from
continuous mode to standby.
Have contractor balance HRV airflows
Reduce the desired level of humidity. Combine this with the use of continuous
exchange mode.
Wait until outside temperature stabilizes (winter). Heating will also improve
situation.
Store a majority of your wood outside. Even dried, a cord of wood contains
more than 20 gallons of water.
Make sure the dryer vent is exhausting outside.
Open curtains or blinds.
Have contractor balance HRV airflows
Open the door or install a grill on the door.
Reduce the desired level of humidity. Combine this step with use of continuous
exchange mode.
Have contractor balance HRV
Open curtains or blinds.
Clean exterior hoods or vents
Remove and clean filter
Remove and clean core
Check and open grilles
Have electrician check supply voltage
Check duct installation
Increase the speed of the HRV (i.e. change unit control from REDUCED to NORMAL
speed)
Have contractor balance HRV airflows
Have contractor reconnect ducting
Locate the grilles high on the walls or under the baseboards, install ceiling
mounted diffuser or grilles so as not to directly spill the supply air on the
occupant (eg. Over a sofa)
Turn down the HRV supply speed. A small duct heater (1kw) could be used to
temper the supply air
Placement of furniture or closed doors is restricting the movement of air in
the home
If supply air is ducted into furnace return, the furnace fan may need to run
continuously to distribute ventilation air comfortably
Have HVAC contractor balance the HRV airflows
Note: minimal frost build-up is expected on the core before unit initiates
defrost cycle functions
Tape and seal all joints
Tape any holes or tears made in the outer duct covering
Ensure that the vapor barrier is completely sealed.
HRV MAINTENANCE CHART
Maintenance Required Recommended Frequency Date Maintenance Performed
Check and Clean Filters Every 3 months or if
dirty
Check Heat Recovery Every 6 months
Core
Check Drain Pan and Every 3 months
Lines
Vacuum the Inside of the Annually
Unit
Clean and Un-block Annually
Outside
Hoods
Clean and Inspect Duct Annually
Work
General Servicing by a Annually
Qualified Contractor
* Schedule may be altered to meet your own needs. More frequent servicing may be required depending on the
severity of your home's indoor and outdoor environments.
Contractor Telephone Number
The Best
Limited Warranty
in the Business
• The heat recovery aluminum core
has a limited lifetime warranty.
• The motors found in all Fantech
HRV's require no lubrication, and
are factory balanced to prevent
vibration and promote silent
operation.
• The limited warranty covers normal
use. It does not apply to any
defects, malfunctions or failures as
a result of improper installation,
abuse, mishandling,
misapplication, fortuitous
occurrence or any other
circumstances outside Fantech's
control.
• Inappropriate installation or
maintenance may result in the
cancellation of the warranty.
• Any unauthorized work will result in
the cancellation of the warranty.
• Fantech is not responsible for any
incidental or consequential
damages incurred in the use of the
ventilation system.
• Fantech is not responsible for
providing an authorized service
Date Serviced
centre near the purchaser or in the
general area.
• Fantech reserves the right to
supply refurbished parts as
replacements.
• Transportation, removal and
installation fees are the
responsibility of the purchaser.
• The purchaser is responsible to
adhering to all codes in effect in his
area.
• The warranty is limited to 5 years
on parts and 7 years on the motor
from the date of purchase,
including parts replaced during this
time period. If there is no proof of
purchase available, the date
associated with the serial number
will be used for the beginning of
the warranty period.
* This warranty is the exclusive and
only warranty in effect relative to the
ventilation system and all other
warranties either expressed or
implied are invalid.
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