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joint A
3. Lead the heat discharge pipe outdoors.
Note on installing heat discharge pipe
In order to improve cooling efficiency,the heat discharge pipe should be as
short as possible and flat without curve to ensure smooth heat discharge.
The discharge pipe is suggested to be installed according to below figure .
Discharge pipe can be installed based on user's requirement, while
installation form as shown below should be avoided as it may lead to
non-uniform exhaust.
• If the length of the heat discharge pipe is less than 1 meter. It is
recommended to use it with shortest length.
• When installing, heat discharge pipe should be as flat as possible. Do not
lengthen the pipe or connect it with an other heat discharge pipe.
Operation Test
• Connect power and then press ON/OFF button on remote control to
start the unit.
• Press mode button to select auto, cooling, dry, fan or heating function,
and then check if the unit operates normally.
• If ambient temperature is below 16°C , the unit can't operate in cooling
mode.
groove
The electric schematic diagram are subject to change without notice.
Please refer to the one on the unit.
UL-C10EA-W
UL-C12EA-W
UL-C10UA-W
UL-CY12EA-W
Aptitude requirement for maintenance personnel
(repairs should be done only by specialists).
1. Any person who is involved with working on or breaking into a
2. Servicing shall only be performed as recommended by the equipment
Safety preparation work
The maximum refrigerant charge amount is shown on the following table.
(Note: Please refer to the nameplate for the charging quantity of R290).
Wiring Diagram
ROOM TEMP.
TUBE TEMP.
WATER MOTOR
SENSOR
SENSOR
YEGN
M3
RT1
RT2
BU
RD
PE
T-SENSOR
N2
WATER1
AP1
DISP2
DISP2
MAIN BOARD
DISP1
DISP1
SWING
AP2
HIGH-WP
DISPLAY
BOARD
RD
RD
M4
SA
STEPPING
MOTOR
WATER LEVEL
SWITCH
ROOM TEMP.
TUBE TEMP.
OUTTUBE TEMP.
WATER MOTOR
SENSOR
SENSOR
YEGN
M3
RT1
RT2
RT3
RD
BU
PE
T-SENSOR
N2
WATER
AP1
DISP2
DISP2
MAIN BOARD
DISP1
DISP1
SWING
AP2
HIGH-WP
DISPLAY
BOARD
RD
RD
M4
SA
STEPPING
MOTOR
WATER LEVEL
SWITCH
Specialist's Manual
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorises their
competence to handle refrigerants safely in accordance with an
industry recognised assessment specification.
manufacturer. Maintenance and repair requiring the assistance of
other skilled personnel shall be carried out under the supervision of
the person competent in the use of flammable refrigerants.
RECEIVER
BOARD
BN(BK)
AP3
BU(WH)
YEGN(GN)
REC
BU
AC-L
K201
COMP.
COMP
COMP
R(M)
OFAN
FAN
CAP.
RD
RD
C1
M2
M1
YEGN
YEGN
PE
PE
RD
CAP.
BN
RD
CAP.
BN
C3
C2
DOWN FAN
UP FAN
MOTOR
MOTOR
VALVE
4-WAY
SENSOR
RECEIVER
BN(BK)
BOARD
AP3
BU(WH)
YEGN(GN)
N2 4WAY
OUTTUBE
REC
BU
AC-L
K201
COMP.
COMP
COMP
R(M)
OFAN
FAN
CAP.
RD
RD
M2
M1
YEGN
YEGN
PE
PE
RD
CAP.
BN
RD
CAP.
BN
C3
C2
DOWN FAN
UP FAN
MOTOR
MOTOR
EN
POWER
L
N
PE
C
S
YE
POWER
L
N
PE
C
S
YE
C1
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