9
Unit Maintenance and Preparation
Opening and Closing Of Lift-Up Grille Cover
Removing Front Cover Assembly
1. Set the horizontal louver to the horizontal position.
2. Remove the screw caps below the louver, and then remove the mounting screws.
3. Open the lift-up grille cover by grasping the panel at both sides as shown above.
4. Remove the remaining screws located in the center of the front cover.
5. Grasp the lower part of the front cover and pull the entire assembly out and up towards you.
Air Purging
1. After connecting the water inlet and outlet pipes to the main supply lines turn on the main breaker and operate the unit in
COOLING mode.
2. Open the water inlet valve and flood the coil.
3. Check all connections for water leakage. If no leak is found, open the purging valve with an open end wrench while supporting
the unit with your other hand. Then purge the air trapped inside the coil. When performing this activity, take care not to touch the
electrical parts.
4. Close the purging valve when no bubbles appear.
5. Open the water outlet valve.
Wiring Connections
Unit components are wired to the terminal block of the indoor unit. Wiring can be accessed from the terminal block inside the control box.
Open the grille cover by lifting from the bottom position indicated
by the arrows.
Close the grille cover by pressing down at the positions indicated
by the arrows..
