Piping And Drain Hose Installation - Toshiba RAV-SM307KRTP-E Installation Manual

6

Piping and drain hose installation

■ Piping and drain hose forming
* Apply heat-insulation for both refrigerant pipe and drain hose surely so that no dew generates inside of the
equipment. (use polyethylene foam for insulating material.)
Rear right
Rear left
Removing
Bottom left
front panel
Left
Bottom right
1. Remove the front panel
The front panel must be removed for piping
connections in the left, bottom left, and rear left
directions.
•
Open the air intake grille upward.
• Remove the four screws securing the front panel.
• Slightly open the lower part of the front panel, and
then pull the upper part of the front panel toward you
to remove it from the rear plate.
2. Die-cutting front panel slit
Cut out the slit on the leftward or right side of the front panel for the left or right connection and the slit on the
bottom left or right side of the front panel for the bottom left or right connection with a pair of nippers.
3. Changing drain hose
For leftward connection, bottom-leftward connection and rear leftward connection's piping, it is necessary to
change the drain hose and drain cap.
Without changing the drain hose position, the indoor unit will not fit to the wall.
How to remove the drain hose
• The drain hose can be removed by removing the screw securing the drain hose and
then pulling out the drain hose.
•
When removing the drain hose, be careful of any sharp edges of steel plate. The edges
can injuries.
•
To install the drain hose, insert the drain hose fi rmly until the connection part contacts
with heat insulator, and the secure it with original screw.
13-EN
Changing Piping
drain hose preparation
Die-cutting
front panel
slit
Air intake grille
1
2
– 7 –
How to remove the drains cap
Clip the drain cap by needle-nose pliers and pull out.
How to fi x the drains cap
1
Insert hexagonal wrench (dia. 4 mm) in a
centre head.
4 mm
Front panel
2
Firmly insert drains cap.
No gap
3
Insert a hexagon
wrench (4 mm)
CAUTION
Firmly insert the drain hose and drain cap; otherwise,
water may leak.
How to remove the drain hose
1
Remove the front panel.
2
Remove the screws of drain hose.
3
Pull out the drain hose.
Heat insulator
How to fi x the drain hose
1
Place the drain hose in the specified
position.
2
Screw the drain hose to the indoor unit.
Drain hose
3
Install the front panel.
▼ In case of left piping
After scribing slits of the front panel with a knife or a
marking-off pin, cut them with a pair of nippers or an
equivalent tool.
▼ In case of bottom right or bottom left piping
After scribing slits of the front panel with a knife or a
marking-off pin, cut them with a pair of nippers or an
equivalent tool.
Slit
▼ Left-hand connection with piping
Do not apply lubricating oil
Bend the connecting pipe so that it is laid within 43
(refrigerant machine oil)
mm above the wall surface. If the connecting pipe
when inserting the drain cap.
Application causes
is laid exceeding 43 mm above the wall surface, the
deterioration and drain
indoor unit may unstably be set on the wall. When
leakage from the plug.
bending the connecting pipe, make sure to use a
spring bender so as not to crush the pipe.
Bend the connection pipe within a radius of 30 mm.
To connect the pipe after installation of the unit (figure)
270 mm
230 mm
Liquid side
R 30 mm(use polish polyethylene
core or the like for bending pipe.)
NOTE
If the pipe is bent incorrectly, the indoor unit may
unstably be set on the wall.
After passing the connecting pipe through the pipe
hole, connect the connecting pipe to the auxiliary
pipes and wrap the facing tape around them.
Slit
(To the forefront of flare)
Gas side
Outward form of indoor unit
Use the handle of screwdriver, etc.
14-EN