Test water drain while checking the operation sound
of the drain pump motor.
(If the operation sound changes from continuous
sound to intermittent sound, water is normally
drained.)
After the check, the drain pump motor runs,
connecting the float switch connector.
(In case of check by pulling out the float switch
connector, be sure to return the connector to the
original position.)
Single phase
208/230V
Power
terminals
(L1)
(L2)
CN34
White
(RED)
Red
Black
Pull out connector CN34 (Red)
from P.C. Board.
Black
Insulation process
As shown in the figure, cover the flexible hose and
hose band with the attached insulation up to the
bottom of the indoor unit without gap.
Cover the drain pipe seamlessly with an insulation
locally procured so that it overlaps with the attached
insulation of the drain connecting section.
Wrap the attached insulation seamlessly
from the surface of the indoor unit.
Insulation of the
Insulation
drain connecting
(Locally procured)
section (Accessory)
* Direct the slits and seams of the insulation
upward to avoid water leakage.
23-EN
6
Refrigerant piping
CAUTION
When the refrigerant pipe is long, provide support
brackets at interval
to cla
Permissible piping length
and height difference
refer to the Installation Manual attached to the outdoor
unit.
Pipe size
(Unit: inch (mm))
UP0151,
Model name
UP0181 type
Gas side
Pipe size
Liquid side
Connecting refrigerant
piping
Flaring
1. Cut the pipe with a pipe cutter.
cause gas leakage.)
2. Insert a flare nut into the pipe, and flare the pipe.
Use the flare nut provided with the unit or the
one used for the R410A refrigerant. The flaring
A are dif
used for the conventional R22 refrigerant. A new
fl
the copper pipe is adjusted to be as shown in the
following table.
– 12 –
Projection margin in flaring: B
(Unit: inch (mm))
Outer dia. of
Tool used
copper pipe
0 to 0.02
(0 to 0.5)
0 to 0.02
(0 to 0.5)
UP0241 type
Flaring diameter size: A (Unit: inch (mm))
Outer dia. of copper pipe
Conventional
tool used
0.04 to 0.06
(1.0 to 1.5)
0.06 to 0.08
(1.5 to 2.0)
A
+0
–0.02 (–0.4)
0.35 (9.1)
0.52 (13.2)
EN
FR
ES
24-EN