Honeywell PERFECT WINDOW HR200 - Manual (Page 20)

APPENDICES
Table 1. Troubleshooting Guide.
Symptom Cause Solution
Poor airflow Plugged outside hood 1/4 in. (6 mm) mesh. • Clean exterior hoods or vents •
Filters plugged. • Remove and clean filter. •
Core obstructed. • Remove and clean core. •
House grilles closed or blocked. • Check and open grilles. •
Dampers (if installed) are closed. • Open and adjust dampers •
Poor power supply at site. • Have electrician check supply voltage at house. •
Ductwork is restricting airflow. • Check duct installation. •
Improper speed control setting. • Increase speed of ventilator. •
Ventilator airflow improperly balanced. • Have contractor balance ventilator airflow. •
Supply air
feels cold Poor location of supply grilles, airflow can •
irritate the occupant.
Locate grilles high on walls or under baseboard •
heaters; install ceiling-mounted diffuser or
grilles to avoid blowing directly on occupants
(example: over a sofa).
Outdoor temperature extremely cold. • Turn down ventilator supply speed. •
Use a small duct heater (1 kW) to temper the •
supply air.
Placement of furniture or closed doors is
•
restricting movement of air in the home.
If supply air is ducted in furnace return, run
•
furnace fan continuously to distribute ventilation
air comfortably.
Ventilator airflow can be incorrectly balanced. • Have a contractor balance ventilator airflow. •
Dehumidistat
is not
operating Incorrect connection to external 24-volt control. •
Staple/nail is shorting out external low voltage. •
Check that correct wires were used. •
Check external wiring for a short. •
Check dehumidistat setting; it could be at Off. • Set dehumidistat at the desired setting. •
Dehumidistat is disabled when the outdoor •
temperature is above 60F for 24 hours.
Check the LED on the terminal block for long •
flash followed by a short flash.
TROUBLESHOOTING
HR150, 200; ER150, 200 Perfect Window™ Fresh Air Ventilation Systems 68-0171—12 18