Cutting and Flaring the Piping
How to take out Front Grille
Auto Switch Operation
Check the Drainage
Evaluation of the Performance
25
English Installation instruction
1. Please cut using pipe cutter and then remove the burrs.
2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
When properly fl ared, the internal surface of the
fl are will evenly shine and be of even thickness.
Since the fl are part comes into contact with the
connections, carefully check the fl are fi nish.
Improper fl aring
Inclined Surface
damaged
Cracked Uneven
thickness
1. To cut 2. To remove burrs 3. To fl are
Bar
Red arrow mark
Handle
Core
Yoke
Clamp handle
Bar
0 – 0.5 mm
Copper pipe
Reamer
Point down
Pipe
Please follow the steps below to take out front grille if
necessary such as when servicing.
louvers to the horizontal position.
2. Pull up and Hang the 2 caps (1.5HP) or 3 caps
(2.0 ~ 2.5HP) on the front grille as shown in
the illustration.
3. Then remove the 2 (1.5HP) or 4 (2.0 ~ 2.5HP)
mounting screws.
4. Pull the lower section of the front grille
towards you to remove the front grille.
The below operations will be performed by pressing the “AUTO” switch.
1. AUTO OPERATION MODE
The Auto operation will be activated immediately once the Auto Switch is pressed and
release before 5 sec..
2. TEST RUN OPERATION (FOR PUMP DOWN/SERVICING PURPOSE)
The Test Run operation will be activated if the Auto Switch is pressed continuously for
more than 5 sec. to below 8 sec..
(Drainage checking can be carried out without removing the front grille.)
• Pour a glass of water into the drain tray-styrofoam.
Drain tray-styrofoam
• Measure the temperature of the intake and discharge air.
• Ensure the difference between the intake temperature and the discharge is
more than 8°C during Cooling operation or more than 14°C during
Heating operation.
Vane (1)
Vane (2)
Front grille
Screw (only for 2.0HP~2.5HP model)
(only for 2.0HP~2.5HP model)
Cap
sec view
Screw
Discharge air
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