En-7
Working procedure
(1) Install the attached drain hose to the drain port of the body. Install the hose band from
the top of the hose within the graphic display area. Secure
fi
rmly with the hose band.
(2) Use vinyl adhesive agent to glue the drain piping (PVC pipe (Ø 3/4 in. [I.D.]; Ø 1-1/16
in. [O.D.])) which is prepared on site or elbow socket.
(Apply color adhesive agent evenly until the gauge line and seal)
(3) Check the drainage. (See separate diagram)
(4) Install the heat insulation.
(5) Use the attached heat insulation to insulate the drain port and band parts of the body.
Install the knob
faces upward
Attached drain hose
heat insulation
(Accessories)
Locally arranged
vinyl pipe
Attached drain hose
(Accessories)
Attached hose band
(Accessories)
Attached heat insulation
(Accessories)
3/16 to 3/8 in.
(5 to 10 mm)
13/16 in.
(20 mm)
Hose Band
(a) Top view
(b) Side view
(c) Top view
(d) Hose opening view
1-3/8 in.
(35 mm)
Applying area
of adhesive
Ø 3/4 in. [I.D.];
Ø 1-1/16 in. [O.D.]
Gauge line
3/16 in. (4 mm) or less
Make sure there are no gaps
Wind the attached heat insulation
around the hose band
Make sure the
alignment is on top
Note: Check for drainage
Pour about 1 liter of water from the position shown in the diagram or from the air
fl
ow
outlet to the dew tray. Check for any abnormalities such as strange noises and whether
the drain pump functions normally.
6. ELECTRICAL WIRING
WARNING
Electrical work must be performed in accordance with this Manual by a person
certi
fi
ed under the national or regional regulations. Be sure to use a dedicated circuit
for the unit.
An insuf
fi
cient power supply circuit or improperly performed electrical work can cause
serious accidents such as electric shock or
fi
re.
Before starting work, check that power is not being supplied to the all units.
For wiring, use the prescribed type of cables, connect them securely, making sure
that there are no external forces of the cables applied to the terminal connections.
Improperly connected or secured cables can cause serious accidents such as
overheating the terminals, electric shock, or
fi
re.
Securely install the electrical box cover on the unit.
An improperly installed electrical box cover can cause serious accidents such as
electric shock or
fi
re through exposure to dust or water.
Install sleeves into any holes made in the walls for wiring. Otherwise, a short circuit
could result.
Use the included connection cables and power cables or ones specified by the
manufacturer. Improper connections, insufficient insulation, or exceeding the
allowable current can cause electric shock or
fi
re.
Do not modify the power cables, use extension cables, or use any branches in the
wiring. Improper connections, insufficient insulation, or exceeding the allowable
current can cause electric shock or
fi
re.
Match the terminal block numbers and connection cable colors with those of the
outdoor unit (or RB unit). Erroneous wiring may cause burning of the electric parts.
Securely connect the connection cables to the terminal board. In addition, secure the
cables with wiring holders. Improper connections, either in the wiring or at the ends
of the wiring, can cause a malfunction, electric shock, or
fi
re.
Always fasten the outside covering of the connection cable with the cable clamp. (If
the insulator is chafed, electric discharge may occur.)
We suggest installing GFEB breakers or follow local electrical code. When installing
this system, install using ground fault equipment breakers (GFEB) to reduce the risk
of leaking current which result in electric shock or potential
fi
re.
Always connect the earth (ground) cable.
Improper earthing (grounding) work can cause electric shocks.
Install the remote controller cables so as not to be direct touched with your hand.
Perform wiring work in accordance with standards so that the air conditioner can be
operated safely and positively.
Connect the connection cable
fi
rmly to the terminal board. Imperfect installation may
cause a
fi
re.
If the supply cable is damaged, it must be replaced by the manufacturer, its service
agent or similarly quali
fi
ed persons in order to avoid a hazard.
CAUTION
Earth (Ground) the unit.
Do not connect the earth (ground) cable to a gas pipe, water pipe, lightning rod, or a
telephone earth (ground) cable.
Improper earthing (grounding) may cause electric shock.
Do not connect power supply cables to the transmission or remote controller terminals,
as this will damage the product.
Never bundle the power supply cable and transmission cable, remote control cable to-
gether. Separate these cable by 2 in. (50 mm) or more. Bundling these cables together
will cause miss operation or breakdown.
When handling PCB, static electricity charged in the body may cause malfunction of the
PCB. Follow the cautions below:
• Establish an earth (ground) for the indoor and outdoor units and peripheral devices.
• Cut power (breaker) off.
• Touch metal part of the indoor units for more than 10 seconds to discharge static
electricity charged in the body.
• Do not touch terminals of parts and patterns implemented on PCB.
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9371022314-03_IM.indb Sec1:7
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