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5
For the User
2. MAINTENANCE
2.1 QUARTERLY MAINTENANCE
1. Unplug the unit.
2. Remove the unit door by following these steps:
A. Remove both door lower mechanical screws no. 8-32 x 1” (1) and set aside (as
illustrated below).
B. Open (2) and lift out the door (3) (as illustrated below).
3. Slide out both filters (4) from the unit (as illustrated below).
4. Slide out the core (5) from the unit (as illustrated below).
5. Clean the inside walls of the unit with a clean damp cloth, then wipe with a clean
dry one.
6. Wash both core filters under lukewarm water with mild soap. Rinse thoroughly and
let dry completely before reinstalling on the core.
7. Remove the dust on the core using a vacuum cleaner and a soft brush attachment.
8. Slide the cleaned core and filters into the unit.
9. Reinstall the door. Secure it with both mechanical screws no. 8-32 x 1” previously removed
and plug the unit. The unit will return to its previous setting after a 30-second boot sequence.
2.2 ANNUAL MAINTENANCE
Perform Quarterly Maintenance up to step 6, and clean the recovery core as follows:
K7 ERV K8 HRV, K10 HRV*,
40E 40H+*, 50H*
Remove the dust on the core using a vacuum cleaner and a soft
brush attachment.
CAUTION: DO NOT SOAK THE ENERGY RECOVERY CORE IN
WATER
Soak the heat recovery core in a mixture of lukewarm water and
mild soap. Rinse thoroughly. Shake the core to remove excess
water and let it dry.
VO0191
1
2
3
AB
VD0243
4
5
Follow the instructions on the core label to reinstall it correctly.
CAUTION
Risk of electric shock. Before performing any maintenance or servicing, always disconnect the unit from its
power source.
When cleaning the unit, it is recommended to wear safety glasses and gloves.
⚠ WARNING
3. USER’S TROUBLESHOOTING
PROBLEM TRY THIS...
1. Nothing works. • See if the unit is plugged in and receiving power from the house circuit breaker or fuse.
2. Condensation on windows (air
too humid).
• Operate the unit on maximum speed ventilation until the situation is corrected.
• Leave curtains half-open to allow air circulation.
• Store all firewood in a closed room with a dehumidifier or in a well ventilated room, or store the
wood outdoors.
• Do not adjust the thermostat of your heating system below 18°C (64°F).
3. Indoor air too dry. • Temporarily use a humidifier.
• Operate the unit in recirculation mode (if available).
4. Air too cold at the air supply
grille.
• Make sure that the exterior hood is not blocked.
• Operate the unit in low speed ventilation, in intermittent or in recirculation mode (if available).
• Install a duct heater.
5. The LED of the integrated
control is blinking GREEN.
• There is a problem with the thermistor. The unit is still working, but will defrost frequently. Contact
your installer.
6. The LED of the integrated
control is blinking AMBER.
• There is a problem with the motorized damper. The unit is OFF. For a 2½-hour period, the unit will
try to reset the damper every 30 minutes. After 2½ hours, if the problem is not solved, the unit stops
trying to reset damper. Contact your installer.
7. The integrated control push
button does not work.
• The 30-second boot sequence is not completed.
• See Section 1.2.
Contact customer service at 1-800-567-3855 for any unresolved issue.
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