Is unit charged? Does indoor unit have dust filter?

The outdoor condenser comes with a factory refrigerant charge of 25'. This system uses R410A refrigerant. Yes, the indoor unit does include a filter. It is recommended that the filter is checked every 30 days during times of use. The indoor unit has a filter access door which you can use to check your filter for dirt. If the filter is dirty it should be gently cleaned or replaced as needed. For more assistance, please give us a call.