4
• Select the *H dimension such that a downward slope of at
least 1/100 is ensured as indicated in “
7. DRAIN PIPING
WORK
”.
• The maintenance space marked with “ * ” is required
when the installation box for adaptor PC board
(KRP1B101) sold separately is used.
[ PRECAUTION ]
• Install the indoor and outdoor units, power supply wiring
and connecting wires at least 3.3 ft. away from televisions
or radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 3.3 ft. may
not be sufficient enough to eliminate the noise.)
• If installing the wireless kit in a room with electronic fluo-
rescent lighting (inverter or rapid start type), the remote
controller’s transmission distance may be shortened.
Indoor units should be installed as far away from fluores-
cent lighting as possible.
DANGER
• Do not install unit in an area where flammable materials are
present due to the risk explosion resulting in serious injury or
death.
WARNING
• If the supporting structural members are not strong enough
to take the unit’s weight, the unit could fall out of place and
cause serious injury.
NOTE
• Install the indoor and outdoor units, power supply wiring and
connecting wires at least 3.5 ft. away from televisions or
radios in order to prevent image interference or noise.
(Depending on the radio waves, a distance of 3.5 ft. may not
be sufficient enough to eliminate the noise.)
(2) Use suspension bolts for installation. Check whether
the ceiling is strong enough to support the weight of
the unit or not. If there is a risk, reinforce the ceiling
before installing the unit.
(Installation pitch is marked on the carton box for installa-
tion. Refer to it to check for points requiring reinforcing.)
4.
PREPARATIONS BEFORE INSTALLATION
(1) Confirm the positional relationship between the unit
and suspension bolts. (Refer to Fig. 2)
• Install the inspection opening on the control box side where
maintenance and inspection of the control box and drain
pump are easy. Install the inspection opening also in the
lower part of the unit.
(length : in.)
(2) Make sure the range of the unit’s external static pres-
sure is not exceeded.
(See the Engineering Data for the range of the external
static pressure setting.)
Control box
Maintenance
space
Maintenance
space
12
or more
*12 or
more
13/16 or more
100 or more
*H=
9-1/2 or more
7-7/8
Ceiling
Floor surface
(length : in.)
Fig. 1
Model
A
B
07 · 09 · 12 type
27-9/16
29-1/8
18 type
35-7/16
37
24 type
43-5/16
44-7/8
B
A
24-7/16
19-11/16
¨
17-3/4
(Inspection
opening size)
Ceiling
A
Air outlet
Suspension
bolt pitch
(length : in.)
Air inlet
Control box
(Suspension bolt pitch )
Allow view
Inspection door
(Ceiling opening)
Fig. 2
〈
SERVICE SPACE
〉
Drain pump
24-7/16
