Operating Instructions

5
4. MAINTENANCE
Refer to illustration below to identify the inner parts of your unit (unit door removed to ease
understanding).
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
!
VD0382
1) HRV or ERV core
2) Core filters
1) ERV core
2) Core filters
1
1
2
2
These units need regular and annual maintenances.
When the maintenance icon flashes on VT9W main wall control
screen, perform the maintenance. The maintenance icon should
flash about 4 times a year (3 regular maintenances and one annual
maintenance per year).
CONT
Maintenance icon