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CAUTION
• Carry out the installation work by following the prescribed procedure to make provision against the shaking of the unit
caused by strong winds, earthquakes, etc.
• Failure to carry out the installation work as prescribed may lead to the unit tipping over, in turn causing an accident.
When water is to be drained through the drain hose, attach the following drain nipple and waterproof rubber cap
(Optional accessory), and use the drain hose (Inner diameter: 16 mm) sold on the market. Also seal knockout hole
and the screws securely with silicone material, etc., to prevent water from leaking.
Some conditions may cause dewing or dripping of water.
When collectively draining discharged water completely, use a drain pan.
Waterproof rubber cap A (4 pcs.)
(Optional accessory)
Drain nipple
(Optional accessory)
Waterproof rubber cap B (1 pc.)
(Optional accessory)
For reference
If a heating operation is to be continuously performed for a long time under the condition that the outdoor
temperature is 0 °C or lower, draining defrosted water may be difficult due to the bottom plate freezing, resulting in
trouble with the cabinet or fan.
It is recommended to procure an anti-freeze heater locally in order to safely install the air conditioner.
For details, contact the dealer.
Drain nipple
51-EN
Waterproof
rubber cap A
(4 pcs.)
Drain nipple
(Optional
Waterproof rubber cap B
(Optional
accessory)
(1 pc.)
accessory)
(Optional accessory)
Anti-freeze heater
Drain hose
Insulator
6
Refrigerant piping
CAUTION
Do NOT turn on power to Shut-off Valve units until following work is completed. If power turned off after turned it
on, valves of the Shut-off Valve units will close and there is risk of air entering the refrigerant piping.
• Connection of refrigerant pipe
• Airtightness test
• Vacuum drying
• Adding refrigerant
If power turned on before the work is completed, keep power on while working.
Removing service panel
• Remove the screws at 3 locations and slide the service panel down.
Next, detach the right-side claws followed by left-side claws to remove
the service panel.
When doing this, pulling the service panel towards the front could
damage the claws.
When attaching the service panel, attach the left claws followed by the
right claws and lift the service panel upwards and secure it with screws
in the 3 locations.
• The indoor/outdoor connecting pipes can be connected in 4 directions.
Take off the knockout part of the pipe cover through which pipes or wires will pass through the base plate.
Front direction
Down direction
Knockout of pipe cover
• Detach the pipe cover and tap on the knockout section a few times with the shank of a screwdriver.
A knockout hole can easily be punched.
• After punching out the knockout hole, remove burrs from the hole and guard material around the passage hole
to protect wires and pipes. Be sure to attach the pipe covers after pipes have been connected. Cut the slits under
the pipe covers to facilitate the installation. After connecting the pipes, be sure to mount the pipe cover. The pipe
cover is easily mounted by cutting off the slit at the lower part of the pipe cover.
Protective bush(Localy procured)
Passage hole guard material(Localy procured)
* Attach the guard material securely so that it does not come loose.
Remove dust and moisture inside the connecting pipes
• For connecting pipes, use new and clean piping materials so that water or dust does not enter.
– 26 –
Left-side
claws
(3)
Rear direction
Pipe cover
* Be sure to wear heavy work
Side direction
gloves while working.
Service panel
Right side panel
(1)
Right-side
(2)
claws
EN
52-EN
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