Service & Maintenance - Daikin FWW Series Technical Manual

Service & Maintenance
Moving machinery and electrical power hazards. May cause severe personal injury or death.
Disconnect from main power supply before servicing equipment.
The unit is designed to give long life operation with minimum maintenance required. However, it should
be regularly checked and the following items should be given due attention.
Components
1. Remove any dust adhering to the filter by using a
vacuum cleaner or wash in lukewarm water (below
40˚C) with a neutral cleaning detergent.
Air Filter
2. Rinse the filter well and dry before placing it back onto
(Indoor Unit)
the unit.
3. Note: Never use gasoline, volatile substances or
chemicals to clean the filter.
1. Clean any dirt or dust on the grille or panel by wiping
it with a soft cloth soaked in lukewarm water (below
Indoor Unit 40˚C) and a neutral detergent solution.
2. Note: Never use gasoline, volatile substances or
chemicals to clean the indoor unit.
Condense Drain 1. Check the cleanliness and clean it if necessary.
Pan & Pipe
Indoor Fan Check if there is any abnormal noise.
1. Check and remove the dirt between the fins.
Indoor Coil 2. Check and remove any obstacles which hinder air
flowing into and out of the indoor unit.
1. Check the voltage and current of the indoor unit.
2. Check the electrical wiring for any faulty contacts
Power Supply caused by loose connections, foreign matters, etc.
Tighten the wires onto the terminal block if
necessary.
Fan Motor Oil All motors are pre-lubricated and sealed at factory.
Do not charge OXYGEN, ACETYLENE OR OTHER FLAMMABLE and poisonous gases into the unit when
performing a leakage test or an air tight test. These gases could cause severe explosion and damage if
expose to high temperature and pressure.
136
Maintenance Procedures
Service & Maintenance
Recommended Schedule
At least once every 4 weeks.
More frequently if necessary.
At least once every 4 weeks.
More frequently if necessary.
Every 3 months.
When necessary.
Every month.
Every 2 months.
No maintenance required.