Delta 80SF040J24, Instruction Manual, Page: 13 / 24

10
4 Installation Instruction
4.1 Installation of the Connection Pipe
It’s required to disassemble the air intake panel before conducting piping and wiring work.
(1) Dismantle the screw-shielding cover from both sides of the panel.
(2) Remove the screws distributed on the panel by a screwdriver. (See Fig.5)
(3) Pull out the panel as per the arrowed direction. (See Fig.5) The internal parts of the unit are
shown in Fig.6.
(4) When performing piping and wiring work on the left, right and rear side, please adopt the
attached accessories. (See Fig. 7 and Fig.8)
Flared end
connection pipe
Drain pipe
Flared end
connection pipe
Drain pipe
Pipe-passing hole
Tape
Plastic drain pipe
Fig.5 Fig.6 Fig.7 Fig.8
4.2 Installation and Test of Drain Pipe
4.2.1 Precautions When Doing the Piping Work
(1) Keep piping as short as possible and slope it downwards at a gradient of at least 1/100 so
that air may not remain trapped inside the pipe.
(2) Keep pipe size equal to or greater than that of the connecting pipe.
(3) Install the drain piping as shown and take measures against condensation. Improperly
rigged piping could lead to leaks and eventually wet furniture and belongings.
Extension drain piping
(commercially available)
Insulating tube
(commercially
available)
Indoor unit
drain hose
Insulating tape
(accessory)
Fig.9
4.2.2 Installing the Drain Pipes
(1) Insert the drain hose into the drain socket up to the base, and tighten the clamp securely
with the tape.
(2) Insert the drain hose into the drain outlet, and tighten the clamp securely with tape.
◆
Tighten the clamp until the screw head is less then 4 mm from the hose.
① -
Metal clamp (
accessory
)
② -
Drain hose (
accessory
)
③ -
Grey tape (
accessory
)
1 2
3