User Manual

UNITS INSTALLATION
10-13
 CAUTION
• A circuit breaker or fuse must be installed. Without a
circuit breaker or fuse, the danger of electric shock
exists. A main switch with a contact gap of more
than 3.5mm has to be installed in the power supply
line to the outdoor unit.
• Do not install the unit near a location where there is
a flammable gas. The indoor unit may catch fire if
flammable gas leaks around it.
• Be sure to tighten the flare nut to the specified
torque using a toque wrench. If the flare nut is
tightened excessively, it may crack as time elapses,
causing the refrigerant leakage.
• Please ensure smooth flow of water when installing
the drain hose.
• Piping shall be suitable supported with a maximum
spacing of 1m between supports
• An IEC approved power cord should be used. Power
cord type: NYM.
The choice of mounting site
 WARNING
• The unit should be mounted at stable, non-vibratory
location which can provide full support to the unit.
 CAUTION
• No nearby heat source and no obstruction near the
air outlet is allowed.
• The clearance distances from top right and left are
specified in figure below.
• The location must be convenient for water drainage
and pipe connection with the Outdoor unit.
• To avoid interference from noise, please place the
unit and its remote controller at least 1m from the
radio, television and inverter type fluorescent lamp.
• To avoid any error in signal transmission form the
remote controller, please put the controller far away
from high-frequency machines and high-power
wireless systems.
Indoor unit installation
Piping configuration
may be in three
differ
ent directions:
direct rear piping, right
downward piping and
right sideway piping.
Model Floor
Type
Maximum
piping
length (m)
Minimum
piping
length (m)
Maximum
height (m)
RAF-25RPA
10
5
20
RAF-35RPA
10
5
20
RAF-50RPA
10
5
20
Installation of wall penetration and installation of
protection pipe
1. Hole position
• Make a hole on the wall such as the position
shown below, in order to keep the flow for
condensed water smooth
Hole position
In case of making a hole on
the wall
In case of making a
hole on the floor
Above 150m
Above
100m
Above 200m
Be sure to
completely seal
any gap with
putty
Above 150m
Above
100m
Above
100mm
Above 150mm
Above 200mm
Be sure to
completely seal
any gap with
putty
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the
insulator is insufficient,
please use commercial
products.)
Drain pipe must be
installed separately.
Insulate indoor part of pipe
to prevent condensation
Drain
hose to
be
lower
than
center
of hole