69
12.2.6 Cutting and Flaring the Piping
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.
3 Please make flare after inserting the flare nut onto the copper pipes.
12.2.7 How to Take Out Front Grille
Please follow the steps below to take out front grille if necessary such as when installing or servicing.
Model TZ20***, TZ25***, TZ35***, TZ42***, TZ50***, RZ20***, RZ25***, RZ35***, RZ50***
1 Open front panel.
2 Remove the 3 mounting screws on the front grille as shown in the illustration below.
3 Slide the 3 lock knobs on the upside of front grille to unlock position.
4 Pull the front grille towards you to remove the front grille.
Model TZ60*** , TZ71***
1 Set the vertical airflow direction louvers to the horizontal position.
2 Remove the 3 caps on the front grille as shown in the illustration below.
3 And then remove the 4 mounting screws.
4 Pull the lower section of the front grille towards you to remove the front grille.
12.2.8 Check the Drainage
Open front panel and remove air filters. (Drainage
checking can be carried out without removing the
front grille.)
Pour a glass of water into the drain tray-styrofoam.
Ensure that water flows out from drain hose of the
indoor unit.
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 burrs3. To fl are
Bar
Red arrow mark
Handle
Core
Yoke
Clamp handle
Bar
0 – 0.5 mm
Copper pipe
Reamer
Point down
Pipe
When reinstalling the front grille, carry
out above steps 2 - 3 in the reverse order.
1
2
3
4
Screw
ront panel
Front grille
LOCK
Lock knob
UNLOCK
•
Use Test pen to
remove Cap
Cap
4
2
3
Screw
Screw
Test pen
Cap
Front
grille
When reinstalling the front grille, carry out
above steps 2 - 3 in the r everse order.
Vane
(Move the
ane to
ownward)
1
Drain tray-styrofoam
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