IVT Optima 1000 Assembly, Commissioning And Maintenance Manual page 29

Particle fi lter
The task of a particle fi lter ( dirt fi lter) is to ensure no particles or dirt enter
the heat exchangers. Over time the fi lter can become clogged and must be
cleaned. To clean the fi lter:
1. Shut down the heat pump using the ON/OFF button.
2. Close the valve and unscrew the sealing cap.
3. Loosen the circlip holding the screen in the valve. Use the supplied
circlip pliers.
4. Lift out the screen from the valve and wash clean with water.
5. Refit the screen, the circlip and sealing cap.
6. Open the valve and start the heat pump using the ON/OFF button.
Evaporator
When you notice a covering (for example dust or insects) on the surface of
the evaporator (coil fi ns), you should wipe it off.
This is what to do:
1. Shut down the heat pump using the ON/OFF button.
2. Spray a degreasing agent on the fins of the evaporator.
3. Rinse off the coating and degreasing agent with water. Do not use a
too powerful water jet. A high pressure can damage the fins. When
the evaporator is extremely dirty you can rinse the coil from inside the
inspection hatch. Any cleaning agent is collected in the drainage hose.
Screen Circlip Sealing cap
The particle fi lter is fi tted indoors on the
heating pipe.
29
Maintenance
Note
Clean the dirt from the coil fi ns
using a degreasing agent and
water.