User Manual

22
Removing and installing related parts falls into the scope of maintenance
operations and must be completed by professionals.
Cleaning and replacing the filter
The ventilator (heat recovery fresh air handling unit) contains one air filter. It is
recommended to check it every one to two months, or determine the replacement cycle
independently according to the power-on time or the decrease degree of air flow. Replace
the filter every three to six months according to the air pollution (dust, smog, etc.) degree
or grade.
After timing is accumulated to the set time, the LCD controller and intelligent controller
prompt the user to replace the corresponding filter. After the filter is replaced, the timer can
be cleared through the resetting button of the LCD to enter the timing cycle again.
Removing method and procedure
Make sure that the power supply is disconnected before the air filter is replaced.
Open the fastener of the access hole, open the access panel, and pull out the filter.
Figure 11 Filter replacing procedure
Use your hand to support the HRV core after the filter is pulled out.
Remove fixing screws, take down the metal hook, and pull out the core.